vim.ftp.fu-berlin.de/2015-02-03.vim.ftp.fu-berlin.de.tar/vim.ftp.fu-berlin.de/unix/vim-6.2.tar.bz2/vim-6.2.tar/vim62/src/gui_gtk_x11.c

C/C++ Source or Header | 2003-05-31 | 165.5 KB | 6,481 lines

/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved        by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */

/*
 * Porting to GTK+ was done by:
 *
 * (C) 1998,1999,2000 by Marcin Dalecki <[e-mail]>
 *
 * With GREAT support and continuous encouragements by Andy Kahn and of
 * course Bram Moolenaar!
 *
 * Support for GTK+ 2 was added by:
 *
 * (C) 2002,2003  Jason Hildebrand  <[e-mail]>
 *          Daniel Elstner  <[e-mail]>
 */

#include "vim.h"
#ifdef FEAT_GUI_GNOME
/* Gnome redefines _() and N_().  Grrr... */
# ifdef _
#  undef _
# endif
# ifdef N_
#  undef N_
# endif
# ifdef textdomain
#  undef textdomain
# endif
# ifdef bindtextdomain
#  undef bindtextdomain
# endif
# if defined(FEAT_GETTEXT) && !defined(ENABLE_NLS)
#  define ENABLE_NLS    /* so the texts in the dialog boxes are translated */
# endif
# include <gnome.h>
# include "version.h"
#endif

#if !defined(FEAT_GUI_GTK) && defined(PROTO)
/* When generating prototypes we don't want syntax errors. */
# define GdkAtom int
# define GdkEventExpose int
# define GdkEventFocus int
# define GdkEventVisibility int
# define GdkEventProperty int
# define GtkContainer int
# define GtkTargetEntry int
# define GtkType int
# define GtkWidget int
# define gint int
# define gpointer int
# define guint int
# define GdkEventKey int
# define GdkEventSelection int
# define GtkSelectionData int
# define GdkEventMotion int
# define GdkEventButton int
# define GdkDragContext int
# define GdkEventConfigure int
# define GdkEventClient int
#else
# include <gdk/gdkkeysyms.h>
# include <gdk/gdk.h>
# include <gdk/gdkx.h>

# include <gtk/gtk.h>
# include "gui_gtk_f.h"
#endif

#ifdef HAVE_X11_SUNKEYSYM_H
# include <X11/Sunkeysym.h>
#endif

/*
 * Easy-to-use macro for multihead support.
 */
#ifdef HAVE_GTK_MULTIHEAD
# define GET_X_ATOM(atom)    gdk_x11_atom_to_xatom_for_display( \
                    gtk_widget_get_display(gui.mainwin), atom)
#else
# define GET_X_ATOM(atom)    ((Atom)(atom))
#endif

/* Selection type distinguishers */
enum
{
    TARGET_TYPE_NONE,
    TARGET_UTF8_STRING,
    TARGET_STRING,
    TARGET_COMPOUND_TEXT,
    TARGET_TEXT,
    TARGET_TEXT_URI_LIST,
    TARGET_TEXT_PLAIN,
    TARGET_VIM
};

/*
 * Table of selection targets supported by Vim.
 * Note: Order matters, preferred types should come first.
 */
static const GtkTargetEntry selection_targets[] =
{
    {VIM_ATOM_NAME,    0, TARGET_VIM},
#ifdef FEAT_MBYTE
    {"UTF8_STRING",    0, TARGET_UTF8_STRING},
#endif
    {"COMPOUND_TEXT",    0, TARGET_COMPOUND_TEXT},
    {"TEXT",        0, TARGET_TEXT},
    {"STRING",        0, TARGET_STRING}
};
#define N_SELECTION_TARGETS (sizeof(selection_targets) / sizeof(selection_targets[0]))

#ifdef FEAT_DND
/*
 * Table of DnD targets supported by Vim.
 * Note: Order matters, preferred types should come first.
 */
static const GtkTargetEntry dnd_targets[] =
{
    {"text/uri-list",    0, TARGET_TEXT_URI_LIST},
# ifdef FEAT_MBYTE
    {"UTF8_STRING",    0, TARGET_UTF8_STRING},
# endif
    {"STRING",        0, TARGET_STRING},
    {"text/plain",    0, TARGET_TEXT_PLAIN}
};
# define N_DND_TARGETS (sizeof(dnd_targets) / sizeof(dnd_targets[0]))
#endif


#ifdef HAVE_GTK2
/*
 * "Monospace" is a standard font alias that should be present
 * on all proper Pango/fontconfig installations.
 */
# define DEFAULT_FONT    "Monospace 10"

#else /* !HAVE_GTK2 */
/*
 * This is the single only fixed width font in X11, which seems to be present
 * on all servers and available in all the variants we need.
 */
# define DEFAULT_FONT    "-adobe-courier-medium-r-normal-*-14-*-*-*-m-*-*-*"

#endif /* !HAVE_GTK2 */

#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION))
/*
 * Atoms used to communicate save-yourself from the X11 session manager. There
 * is no need to move them into the GUI struct, since they should be constant.
 */
static GdkAtom wm_protocols_atom = GDK_NONE;
static GdkAtom save_yourself_atom = GDK_NONE;
#endif

/*
 * Atoms used to control/reference X11 selections.
 */
#ifdef FEAT_MBYTE
static GdkAtom utf8_string_atom = GDK_NONE;
#endif
#ifndef HAVE_GTK2
static GdkAtom compound_text_atom = GDK_NONE;
static GdkAtom text_atom = GDK_NONE;
#endif
static GdkAtom vim_atom = GDK_NONE;    /* Vim's own special selection format */

/*
 * Keycodes recognized by vim.
 * NOTE: when changing this, the table in gui_x11.c probably needs the same
 * change!
 */
static struct special_key
{
    guint key_sym;
    char_u code0;
    char_u code1;
}
const special_keys[] =
{
    {GDK_Up,        'k', 'u'},
    {GDK_Down,        'k', 'd'},
    {GDK_Left,        'k', 'l'},
    {GDK_Right,        'k', 'r'},
    {GDK_F1,        'k', '1'},
    {GDK_F2,        'k', '2'},
    {GDK_F3,        'k', '3'},
    {GDK_F4,        'k', '4'},
    {GDK_F5,        'k', '5'},
    {GDK_F6,        'k', '6'},
    {GDK_F7,        'k', '7'},
    {GDK_F8,        'k', '8'},
    {GDK_F9,        'k', '9'},
    {GDK_F10,        'k', ';'},
    {GDK_F11,        'F', '1'},
    {GDK_F12,        'F', '2'},
    {GDK_F13,        'F', '3'},
    {GDK_F14,        'F', '4'},
    {GDK_F15,        'F', '5'},
    {GDK_F16,        'F', '6'},
    {GDK_F17,        'F', '7'},
    {GDK_F18,        'F', '8'},
    {GDK_F19,        'F', '9'},
    {GDK_F20,        'F', 'A'},
    {GDK_F21,        'F', 'B'},
    {GDK_Pause,        'F', 'B'}, /* Pause == F21 according to netbeans.txt */
    {GDK_F22,        'F', 'C'},
    {GDK_F23,        'F', 'D'},
    {GDK_F24,        'F', 'E'},
    {GDK_F25,        'F', 'F'},
    {GDK_F26,        'F', 'G'},
    {GDK_F27,        'F', 'H'},
    {GDK_F28,        'F', 'I'},
    {GDK_F29,        'F', 'J'},
    {GDK_F30,        'F', 'K'},
    {GDK_F31,        'F', 'L'},
    {GDK_F32,        'F', 'M'},
    {GDK_F33,        'F', 'N'},
    {GDK_F34,        'F', 'O'},
    {GDK_F35,        'F', 'P'},
#ifdef SunXK_F36
    {SunXK_F36,        'F', 'Q'},
    {SunXK_F37,        'F', 'R'},
#endif
    {GDK_Help,        '%', '1'},
    {GDK_Undo,        '&', '8'},
    {GDK_BackSpace,    'k', 'b'},
    {GDK_Insert,    'k', 'I'},
    {GDK_Delete,    'k', 'D'},
    {GDK_3270_BackTab,    'k', 'B'},
    {GDK_Clear,        'k', 'C'},
    {GDK_Home,        'k', 'h'},
    {GDK_End,        '@', '7'},
    {GDK_Prior,        'k', 'P'},
    {GDK_Next,        'k', 'N'},
    {GDK_Print,        '%', '9'},
    /* Keypad keys: */
    {GDK_KP_Left,    'k', 'l'},
    {GDK_KP_Right,    'k', 'r'},
    {GDK_KP_Up,        'k', 'u'},
    {GDK_KP_Down,    'k', 'd'},
    {GDK_KP_Insert,    KS_EXTRA, (char_u)KE_KINS},
    {GDK_KP_Delete,    KS_EXTRA, (char_u)KE_KDEL},
    {GDK_KP_Home,    'K', '1'},
    {GDK_KP_End,    'K', '4'},
    {GDK_KP_Prior,    'K', '3'},  /* page up */
    {GDK_KP_Next,    'K', '5'},  /* page down */

    {GDK_KP_Add,    'K', '6'},
    {GDK_KP_Subtract,    'K', '7'},
    {GDK_KP_Divide,    'K', '8'},
    {GDK_KP_Multiply,    'K', '9'},
    {GDK_KP_Enter,    'K', 'A'},
    {GDK_KP_Decimal,    'K', 'B'},

    {GDK_KP_0,        'K', 'C'},
    {GDK_KP_1,        'K', 'D'},
    {GDK_KP_2,        'K', 'E'},
    {GDK_KP_3,        'K', 'F'},
    {GDK_KP_4,        'K', 'G'},
    {GDK_KP_5,        'K', 'H'},
    {GDK_KP_6,        'K', 'I'},
    {GDK_KP_7,        'K', 'J'},
    {GDK_KP_8,        'K', 'K'},
    {GDK_KP_9,        'K', 'L'},

    /* End of list marker: */
    {0, 0, 0}
};

/*
 * Flags for command line options table below.
 */
#define ARG_FONT    1
#define ARG_GEOMETRY    2
#define ARG_REVERSE    3
#define ARG_NOREVERSE    4
#define ARG_BACKGROUND    5
#define ARG_FOREGROUND    6
#define ARG_ICONIC    7
#define ARG_ROLE    8
#define ARG_NETBEANS    9
#define ARG_XRM        10    /* ignored */
#define ARG_MENUFONT    11    /* ignored */
#define ARG_INDEX_MASK    0x00ff
#define ARG_HAS_VALUE    0x0100    /* a value is expected after the argument */
#define ARG_NEEDS_GUI    0x0200    /* need to initialize the GUI for this      */
#define ARG_FOR_GTK    0x0400    /* argument is handled by GTK+ or GNOME   */
#define ARG_COMPAT_LONG    0x0800    /* accept -foo but substitute with --foo  */
/*
 * This table holds all the X GUI command line options allowed.  This includes
 * the standard ones so that we can skip them when Vim is started without the
 * GUI (but the GUI might start up later).
 *
 * When changing this, also update doc/gui_x11.txt and the usage message!!!
 */
typedef struct
{
    const char        *name;
    unsigned int    flags;
}
cmdline_option_T;

static const cmdline_option_T cmdline_options[] =
{
    /* We handle these options ourselves */
    {"-fn",        ARG_FONT|ARG_HAS_VALUE},
    {"-font",        ARG_FONT|ARG_HAS_VALUE},
    {"-geom",        ARG_GEOMETRY|ARG_HAS_VALUE},
    {"-geometry",    ARG_GEOMETRY|ARG_HAS_VALUE},
    {"-rv",        ARG_REVERSE},
    {"-reverse",    ARG_REVERSE},
    {"+rv",        ARG_NOREVERSE},
    {"+reverse",    ARG_NOREVERSE},
    {"-bg",        ARG_BACKGROUND|ARG_HAS_VALUE},
    {"-background",    ARG_BACKGROUND|ARG_HAS_VALUE},
    {"-fg",        ARG_FOREGROUND|ARG_HAS_VALUE},
    {"-foreground",    ARG_FOREGROUND|ARG_HAS_VALUE},
    {"-iconic",        ARG_ICONIC},
#ifdef HAVE_GTK2
    {"--role",        ARG_ROLE|ARG_HAS_VALUE},
#endif
#ifdef FEAT_NETBEANS_INTG
    {"-nb",        ARG_NETBEANS},          /* non-standard value format */
    {"-xrm",        ARG_XRM|ARG_HAS_VALUE},        /* not implemented */
    {"-mf",        ARG_MENUFONT|ARG_HAS_VALUE},    /* not implemented */
    {"-menufont",    ARG_MENUFONT|ARG_HAS_VALUE},    /* not implemented */
#endif
#if 0 /* not implemented; these arguments don't make sense for GTK+ */
    {"-boldfont",    ARG_HAS_VALUE},
    {"-italicfont",    ARG_HAS_VALUE},
    {"-bw",        ARG_HAS_VALUE},
    {"-borderwidth",    ARG_HAS_VALUE},
    {"-sw",        ARG_HAS_VALUE},
    {"-scrollbarwidth",    ARG_HAS_VALUE},
#endif
    /* Arguments handled by GTK (and GNOME) internally. */
    {"--g-fatal-warnings",    ARG_FOR_GTK},
    {"--gdk-debug",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gdk-no-debug",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gtk-debug",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gtk-no-debug",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gtk-module",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--sync",            ARG_FOR_GTK},
    {"--display",        ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
    {"--name",            ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
    {"--class",            ARG_FOR_GTK|ARG_HAS_VALUE|ARG_COMPAT_LONG},
#ifdef HAVE_GTK2
    {"--screen",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gxid-host",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gxid-port",        ARG_FOR_GTK|ARG_HAS_VALUE},
#else /* these don't seem to exist anymore */
    {"--no-xshm",        ARG_FOR_GTK},
    {"--xim-preedit",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--xim-status",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gxid_host",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--gxid_port",        ARG_FOR_GTK|ARG_HAS_VALUE},
#endif
#ifdef FEAT_GUI_GNOME
    {"--load-modules",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--sm-client-id",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--sm-config-prefix",    ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--sm-disable",        ARG_FOR_GTK},
    {"--oaf-ior-fd",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--oaf-activate-iid",    ARG_FOR_GTK|ARG_HAS_VALUE},
    {"--oaf-private",        ARG_FOR_GTK},
    {"--enable-sound",        ARG_FOR_GTK},
    {"--disable-sound",        ARG_FOR_GTK},
    {"--espeaker",        ARG_FOR_GTK|ARG_HAS_VALUE},
    {"-?",            ARG_FOR_GTK|ARG_NEEDS_GUI},
    {"--help",            ARG_FOR_GTK|ARG_NEEDS_GUI},
    {"--usage",            ARG_FOR_GTK|ARG_NEEDS_GUI},
# if 0 /* conflicts with Vim's own --version argument */
    {"--version",        ARG_FOR_GTK|ARG_NEEDS_GUI},
# endif
    {"--disable-crash-dialog",    ARG_FOR_GTK},
#endif
    {NULL, 0}
};

static int    gui_argc = 0;
static char **gui_argv = NULL;

#ifdef HAVE_GTK2
static const char *role_argument = NULL;
#endif
#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
static const char *restart_command = NULL;
#endif
static int found_iconic_arg = FALSE;

#ifdef FEAT_GUI_GNOME
/*
 * Can't use Gnome if --socketid given
 */
static int using_gnome = 0;
#else
# define using_gnome 0
#endif

/*
 * Parse the GUI related command-line arguments.  Any arguments used are
 * deleted from argv, and *argc is decremented accordingly.  This is called
 * when vim is started, whether or not the GUI has been started.
 */
    void
gui_mch_prepare(int *argc, char **argv)
{
    const cmdline_option_T  *option;
    int                i    = 0;
    int                len = 0;

#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
    /*
     * Determine the command used to invoke Vim, to be passed as restart
     * command to the session manager.    If argv[0] contains any directory
     * components try building an absolute path, otherwise leave it as is.
     */
    restart_command = argv[0];

    if (strchr(argv[0], G_DIR_SEPARATOR) != NULL)
    {
    char_u buf[MAXPATHL];

    if (mch_FullName((char_u *)argv[0], buf, (int)sizeof(buf), TRUE) == OK)
        /* Tiny leak; doesn't matter, and usually we don't even get here */
        restart_command = (char *)vim_strsave(buf);
    }
#endif

    /*
     * Move all the entries in argv which are relevant to GTK+ and GNOME
     * into gui_argv.  Freed later in gui_mch_init().
     */
    gui_argc = 0;
    gui_argv = (char **)alloc((unsigned)((*argc + 1) * sizeof(char *)));

    g_return_if_fail(gui_argv != NULL);

    gui_argv[gui_argc++] = argv[i++];

    while (i < *argc)
    {
    /* Don't waste CPU cycles on non-option arguments. */
    if (argv[i][0] != '-' && argv[i][0] != '+')
    {
        ++i;
        continue;
    }

    /* Look for argv[i] in cmdline_options[] table. */
    for (option = &cmdline_options[0]; option->name != NULL; ++option)
    {
        len = strlen(option->name);

        if (strncmp(argv[i], option->name, len) == 0)
        {
        if (argv[i][len] == '\0')
            break;
        /* allow --foo=bar style */
        if (argv[i][len] == '=' && (option->flags & ARG_HAS_VALUE))
            break;
#ifdef FEAT_NETBEANS_INTG
        /* darn, -nb has non-standard syntax */
        if (argv[i][len] == ':'
            && (option->flags & ARG_INDEX_MASK) == ARG_NETBEANS)
            break;
#endif
        }
        else if ((option->flags & ARG_COMPAT_LONG)
            && strcmp(argv[i], option->name + 1) == 0)
        {
        /* Replace the standard X arguments "-name" and "-display"
         * with their GNU-style long option counterparts. */
        argv[i] = (char *)option->name;
        break;
        }
    }
    if (option->name == NULL) /* no match */
    {
        ++i;
        continue;
    }

    if (option->flags & ARG_FOR_GTK)
    {
        /* Move the argument into gui_argv, which
         * will later be passed to gtk_init_check() */
        gui_argv[gui_argc++] = argv[i];
    }
    else
    {
        char *value = NULL;

        /* Extract the option's value if there is one.
         * Accept both "--foo bar" and "--foo=bar" style. */
        if (option->flags & ARG_HAS_VALUE)
        {
        if (argv[i][len] == '=')
            value = &argv[i][len + 1];
        else if (i + 1 < *argc && strcmp(argv[i + 1], "--") != 0)
            value = argv[i + 1];
        }

        /* Check for options handled by Vim itself */
        switch (option->flags & ARG_INDEX_MASK)
        {
        case ARG_REVERSE:
            found_reverse_arg = TRUE;
            break;
        case ARG_NOREVERSE:
            found_reverse_arg = FALSE;
            break;
        case ARG_FONT:
            font_argument = value;
            break;
        case ARG_GEOMETRY:
            if (value != NULL)
            gui.geom = vim_strsave((char_u *)value);
            break;
        case ARG_BACKGROUND:
            background_argument = value;
            break;
        case ARG_FOREGROUND:
            foreground_argument = value;
            break;
        case ARG_ICONIC:
            found_iconic_arg = TRUE;
            break;
#ifdef HAVE_GTK2
        case ARG_ROLE:
            role_argument = value; /* used later in gui_mch_open() */
            break;
#endif
#ifdef FEAT_NETBEANS_INTG
        case ARG_NETBEANS:
            ++usingNetbeans;
            gui.dofork = FALSE; /* don't fork() when starting GUI */
            netbeansArg = argv[i];
            break;
#endif
        default:
            break;
        }
    }

    /* These arguments make gnome_program_init() print a message and exit.
     * Must start the GUI for this, otherwise ":gui" will exit later! */
    if (option->flags & ARG_NEEDS_GUI)
        gui.starting = TRUE;

    /* Now remove the flag from the argument vector. */
    if (--*argc > i)
    {
        int n_strip = 1;

        /* Move the argument's value as well, if there is one. */
        if ((option->flags & ARG_HAS_VALUE)
            && argv[i][len] != '='
            && strcmp(argv[i + 1], "--") != 0)
        {
        ++n_strip;
        --*argc;
        if (option->flags & ARG_FOR_GTK)
            gui_argv[gui_argc++] = argv[i + 1];
        }

        if (*argc > i)
        mch_memmove(&argv[i], &argv[i + n_strip],
                (*argc - i) * sizeof(char *));
    }
    argv[*argc] = NULL;
    }

    gui_argv[gui_argc] = NULL;
}

/*
 * This should be maybe completely removed.
 * Doesn't seem possible, since check_copy_area() relies on
 * this information.  --danielk
 */
/*ARGSUSED*/
    static gint
visibility_event(GtkWidget *widget, GdkEventVisibility *event, gpointer data)
{
    gui.visibility = event->state;
    /*
     * When we do an gdk_window_copy_area(), and the window is partially
     * obscured, we want to receive an event to tell us whether it worked
     * or not.
     */
    if (gui.text_gc != NULL)
    gdk_gc_set_exposures(gui.text_gc,
                 gui.visibility != GDK_VISIBILITY_UNOBSCURED);
    return FALSE;
}

/*
 * Redraw the corresponding portions of the screen.
 */
/*ARGSUSED*/
    static gint
expose_event(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
    /* Skip this when the GUI isn't set up yet, will redraw later. */
    if (gui.starting)
    return FALSE;

    out_flush();        /* make sure all output has been processed */
    gui_redraw(event->area.x, event->area.y,
           event->area.width, event->area.height);

    /* Clear the border areas if needed */
    if (event->area.x < FILL_X(0))
    gdk_window_clear_area(gui.drawarea->window, 0, 0, FILL_X(0), 0);
    if (event->area.y < FILL_Y(0))
    gdk_window_clear_area(gui.drawarea->window, 0, 0, 0, FILL_Y(0));
    if (event->area.x > FILL_X(Columns))
    gdk_window_clear_area(gui.drawarea->window,
                  FILL_X((int)Columns), 0, 0, 0);
    if (event->area.y > FILL_Y(Rows))
    gdk_window_clear_area(gui.drawarea->window, 0, FILL_Y((int)Rows), 0, 0);

    return FALSE;
}

#ifdef FEAT_CLIENTSERVER
/*
 * Handle changes to the "Comm" property
 */
/*ARGSUSED2*/
    static gint
property_event(GtkWidget *widget, GdkEventProperty *event, gpointer data)
{
    if (event->type == GDK_PROPERTY_NOTIFY
        && event->state == (int)GDK_PROPERTY_NEW_VALUE
        && GDK_WINDOW_XWINDOW(event->window) == commWindow
        && GET_X_ATOM(event->atom) == commProperty)
    {
    XEvent xev;

    /* Translate to XLib */
    xev.xproperty.type = PropertyNotify;
    xev.xproperty.atom = commProperty;
    xev.xproperty.window = commWindow;
    xev.xproperty.state = PropertyNewValue;
    serverEventProc(GDK_WINDOW_XDISPLAY(widget->window), &xev);

    if (gtk_main_level() > 0)
        gtk_main_quit();
    }
    return FALSE;
}
#endif


/****************************************************************************
 * Focus handlers:
 */


/*
 * This is a simple state machine:
 * BLINK_NONE    not blinking at all
 * BLINK_OFF    blinking, cursor is not shown
 * BLINK_ON    blinking, cursor is shown
 */

#define BLINK_NONE  0
#define BLINK_OFF   1
#define BLINK_ON    2

static int blink_state = BLINK_NONE;
static long_u blink_waittime = 700;
static long_u blink_ontime = 400;
static long_u blink_offtime = 250;
static guint blink_timer = 0;

    void
gui_mch_set_blinking(long waittime, long on, long off)
{
    blink_waittime = waittime;
    blink_ontime = on;
    blink_offtime = off;
}

/*
 * Stop the cursor blinking.  Show the cursor if it wasn't shown.
 */
    void
gui_mch_stop_blink(void)
{
    if (blink_timer)
    {
    gtk_timeout_remove(blink_timer);
    blink_timer = 0;
    }
    if (blink_state == BLINK_OFF)
    gui_update_cursor(TRUE, FALSE);
    blink_state = BLINK_NONE;
}

/*ARGSUSED*/
    static gint
blink_cb(gpointer data)
{
    if (blink_state == BLINK_ON)
    {
    gui_undraw_cursor();
    blink_state = BLINK_OFF;
    blink_timer = gtk_timeout_add((guint32)blink_offtime,
                   (GtkFunction) blink_cb, NULL);
    }
    else
    {
    gui_update_cursor(TRUE, FALSE);
    blink_state = BLINK_ON;
    blink_timer = gtk_timeout_add((guint32)blink_ontime,
                   (GtkFunction) blink_cb, NULL);
    }

    return FALSE;        /* don't happen again */
}

/*
 * Start the cursor blinking.  If it was already blinking, this restarts the
 * waiting time and shows the cursor.
 */
    void
gui_mch_start_blink(void)
{
    if (blink_timer)
    gtk_timeout_remove(blink_timer);
    /* Only switch blinking on if none of the times is zero */
    if (blink_waittime && blink_ontime && blink_offtime && gui.in_focus)
    {
    blink_timer = gtk_timeout_add((guint32)blink_waittime,
                   (GtkFunction) blink_cb, NULL);
    blink_state = BLINK_ON;
    gui_update_cursor(TRUE, FALSE);
    }
}

/*ARGSUSED*/
    static gint
enter_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
{
    if (blink_state == BLINK_NONE)
    gui_mch_start_blink();

    /* make sure keyboard input goes there */
    if (gtk_socket_id == 0 || !GTK_WIDGET_HAS_FOCUS(gui.drawarea))
    gtk_widget_grab_focus(gui.drawarea);

    return FALSE;
}

/*ARGSUSED*/
    static gint
leave_notify_event(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
{
    if (blink_state != BLINK_NONE)
    gui_mch_stop_blink();

    return FALSE;
}

/*ARGSUSED*/
    static gint
focus_in_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    gui_focus_change(TRUE);

    if (blink_state == BLINK_NONE)
    gui_mch_start_blink();

    /* make sure keyboard input goes there */
    if (gtk_socket_id == 0)
    gtk_widget_grab_focus(gui.drawarea);

    return TRUE;
}

/*ARGSUSED*/
    static gint
focus_out_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    gui_focus_change(FALSE);

    if (blink_state != BLINK_NONE)
    gui_mch_stop_blink();

    return TRUE;
}


#ifdef HAVE_GTK2
/*
 * Translate a GDK key value to UTF-8 independently of the current locale.
 * The output is written to string, which must have room for at least 6 bytes
 * plus the NUL terminator.  Returns the length in bytes.
 *
 * This function is used in the GTK+ 2 GUI only.  The GTK+ 1 code makes use
 * of GdkEventKey::string instead.  But event->string is evil; see here why:
 * http://developer.gnome.org/doc/API/2.0/gdk/gdk-Event-Structures.html#GdkEventKey
 */
    static int
keyval_to_string(unsigned int keyval, unsigned int state, char_u *string)
{
    int        len;
    guint32 uc;

    uc = gdk_keyval_to_unicode(keyval);
    if (uc != 0)
    {
    /* Check for CTRL-foo */
    if ((state & GDK_CONTROL_MASK) && uc >= 0x20 && uc < 0x80)
    {
        /* These mappings look arbitrary at the first glance, but in fact
         * resemble quite exactly the behaviour of the GTK+ 1.2 GUI on my
         * machine.  The only difference is BS vs. DEL for CTRL-8 (makes
         * more sense and is consistent with usual terminal behaviour). */
        if (uc >= '@')
        string[0] = uc & 0x1F;
        else if (uc == '2')
        string[0] = NUL;
        else if (uc >= '3' && uc <= '7')
        string[0] = uc ^ 0x28;
        else if (uc == '8')
        string[0] = BS;
        else if (uc == '?')
        string[0] = DEL;
        else
        string[0] = uc;
        len = 1;
    }
    else
    {
        /* Translate a normal key to UTF-8.  This doesn't work for dead
         * keys of course, you _have_ to use an input method for that. */
        len = utf_char2bytes((int)uc, string);
    }
    }
    else
    {
    /* Translate keys which are represented by ASCII control codes in Vim.
     * There are only a few of those; most control keys are translated to
     * special terminal-like control sequences. */
    len = 1;
    switch (keyval)
    {
        case GDK_Tab: case GDK_KP_Tab: case GDK_ISO_Left_Tab:
        string[0] = TAB;
        break;
        case GDK_Linefeed:
        string[0] = NL;
        break;
        case GDK_Return: case GDK_ISO_Enter: case GDK_3270_Enter:
        string[0] = CR;
        break;
        case GDK_Escape:
        string[0] = ESC;
        break;
        default:
        len = 0;
        break;
    }
    }
    string[len] = NUL;

    return len;
}
#endif /* HAVE_GTK2 */

/*
 * Main keyboard handler:
 */
/*ARGSUSED*/
    static gint
key_press_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
#ifdef HAVE_GTK2
    /* 256 bytes is way over the top, but for safety let's reduce it only
     * for GTK+ 2 where we know for sure how large the string might get.
     * (That is, up to 6 bytes + NUL + CSI escapes + safety measure.) */
    char_u    string[32], string2[32];
#else
    char_u    string[256], string2[256];
#endif
    guint    key_sym;
    int        len;
    int        i;
    int        modifiers;
    int        key;
    guint    state;
    char_u    *s, *d;

    key_sym = event->keyval;
    state = event->state;
#ifndef HAVE_GTK2 /* deprecated */
    len = event->length;
    g_assert(len <= sizeof(string));
#endif

#ifndef HAVE_GTK2
    /*
     * It appears as if we always want to consume a key-press (there currently
     * aren't any 'return FALSE's), so we always do this: when running in a
     * GtkPlug and not a window, we must prevent emission of the key_press
     * EVENT from continuing (which is 'beyond' the level of stopping mere
     * signals by returning FALSE), otherwise things like tab/cursor-keys are
     * processed by the GtkPlug default handler, which moves input focus away
     * from us!
     * Note: This should no longer be necessary with GTK+ 2.
     */
    if (gtk_socket_id != 0)
    gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
#endif

#ifdef FEAT_XIM
    if (xim_queue_key_press_event(event))
    return TRUE;
#endif

#ifdef FEAT_HANGULIN
    if (key_sym == GDK_space && (state & GDK_SHIFT_MASK))
    {
    hangul_input_state_toggle();
    return TRUE;
    }
#endif

#ifdef SunXK_F36
    /*
     * These keys have bogus lookup strings, and trapping them here is
     * easier than trying to XRebindKeysym() on them with every possible
     * combination of modifiers.
     */
    if (key_sym == SunXK_F36 || key_sym == SunXK_F37)
    len = 0;
    else
#endif
    {
#ifdef HAVE_GTK2
    len = keyval_to_string(key_sym, state, string2);

    /* Careful: convert_input() doesn't handle the NUL character.
     * No need to convert pure ASCII anyway, thus the len > 1 check. */
    if (len > 1 && input_conv.vc_type != CONV_NONE)
        len = convert_input(string2, len, sizeof(string2));

    s = string2;
#else
# ifdef FEAT_MBYTE
    if (input_conv.vc_type != CONV_NONE)
    {
        mch_memmove(string2, event->string, len);
        len = convert_input(string2, len, sizeof(string2));
        s = string2;
    }
    else
# endif
        s = (char_u *)event->string;
#endif

    d = string;
    for (i = 0; i < len; ++i)
    {
        *d++ = s[i];
        if (d[-1] == CSI && d + 2 < string + sizeof(string))
        {
        /* Turn CSI into K_CSI. */
        *d++ = KS_EXTRA;
        *d++ = (int)KE_CSI;
        }
    }
    len = d - string;
    }

    /* Shift-Tab results in Left_Tab, but we want <S-Tab> */
    if (key_sym == GDK_ISO_Left_Tab)
    {
    key_sym = GDK_Tab;
    state |= GDK_SHIFT_MASK;
    }

#ifndef HAVE_GTK2 /* for GTK+ 2, we handle this in keyval_to_string() */
    if ((key_sym == GDK_2 || key_sym == GDK_at) && (state & GDK_CONTROL_MASK))
    {
    string[0] = NUL;    /* CTRL-2 and CTRL-@ is NUL */
    len = 1;
    }
    else if (len == 0 && (key_sym == GDK_space || key_sym == GDK_Tab))
    {
    /* When there are modifiers, these keys get zero length; we need the
     * original key here to be able to add a modifier below. */
    string[0] = (key_sym & 0xff);
    len = 1;
    }
#endif

#ifdef FEAT_MENU
    /* If there is a menu and 'wak' is "yes", or 'wak' is "menu" and the key
     * is a menu shortcut, we ignore everything with the ALT modifier. */
    if ((state & GDK_MOD1_MASK)
        && gui.menu_is_active
        && (*p_wak == 'y'
        || (*p_wak == 'm'
            && len == 1
            && gui_is_menu_shortcut(string[0]))))
# ifdef HAVE_GTK2
    /* For GTK2 we return false to signify that we haven't handled the
     * keypress, so that gtk will handle the mnemonic or accelerator. */
    return FALSE;
# else
    return TRUE;
# endif
#endif

    /* Check for Alt/Meta key (Mod1Mask), but not for a BS, DEL or character
     * that already has the 8th bit set.
     * Don't do this for <S-M-Tab>, that should become K_S_TAB with ALT. */
    if (len == 1
        && (state & GDK_MOD1_MASK)
        && !(key_sym == GDK_BackSpace || key_sym == GDK_Delete)
        && (string[0] & 0x80) == 0
        && !(key_sym == GDK_Tab && (state & GDK_SHIFT_MASK)))
    {
    string[0] |= 0x80;
    state &= ~GDK_MOD1_MASK;    /* don't use it again */
#ifdef FEAT_MBYTE
    if (enc_utf8) /* convert to utf-8 */
    {
        string[1] = string[0] & 0xbf;
        string[0] = ((unsigned)string[0] >> 6) + 0xc0;
        if (string[1] == CSI)
        {
        string[2] = KS_EXTRA;
        string[3] = (int)KE_CSI;
        len = 4;
        }
        else
        len = 2;
    }
#endif
    }

    /* Check for special keys.    Also do this when len == 1 (key has an ASCII
     * value) to detect backspace, delete and keypad keys. */
    if (len == 0 || len == 1)
    {
    for (i = 0; special_keys[i].key_sym != 0; i++)
    {
        if (special_keys[i].key_sym == key_sym)
        {
        string[0] = CSI;
        string[1] = special_keys[i].code0;
        string[2] = special_keys[i].code1;
        len = -3;
        break;
        }
    }
    }

    if (len == 0)   /* Unrecognized key */
    return TRUE;

    /* Special keys (and a few others) may have modifiers */
    if (len == -3 || key_sym == GDK_space || key_sym == GDK_Tab
        || key_sym == GDK_Return || key_sym == GDK_Linefeed
        || key_sym == GDK_Escape || key_sym == GDK_KP_Tab
        || key_sym == GDK_ISO_Enter || key_sym == GDK_3270_Enter)
    {
    modifiers = 0;
    if (state & GDK_SHIFT_MASK)
        modifiers |= MOD_MASK_SHIFT;
    if (state & GDK_CONTROL_MASK)
        modifiers |= MOD_MASK_CTRL;
    if (state & GDK_MOD1_MASK)
        modifiers |= MOD_MASK_ALT;

    /*
     * For some keys a shift modifier is translated into another key
     * code.
     */
    if (len == -3)
        key = TO_SPECIAL(string[1], string[2]);
    else
        key = string[0];

    key = simplify_key(key, &modifiers);
    if (key == CSI)
        key = K_CSI;
    if (IS_SPECIAL(key))
    {
        string[0] = CSI;
        string[1] = K_SECOND(key);
        string[2] = K_THIRD(key);
        len = 3;
    }
    else
    {
        string[0] = key;
        len = 1;
    }

    if (modifiers != 0)
    {
        string2[0] = CSI;
        string2[1] = KS_MODIFIER;
        string2[2] = modifiers;
        add_to_input_buf(string2, 3);
    }
    }

    if (len == 1 && ((string[0] == Ctrl_C && ctrl_c_interrupts)
           || (string[0] == intr_char && intr_char != Ctrl_C)))
    {
    trash_input_buf();
    got_int = TRUE;
    }

    add_to_input_buf(string, len);

    /* blank out the pointer if necessary */
    if (p_mh)
    gui_mch_mousehide(TRUE);

    if (gtk_main_level() > 0)
    gtk_main_quit();

    return TRUE;
}

#if defined(FEAT_XIM) && defined(HAVE_GTK2)
/*ARGSUSED0*/
    static gboolean
key_release_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
    /*
     * GTK+ 2 input methods may do fancy stuff on key release events too.
     * With the default IM for instance, you can enter any UCS code point
     * by holding down CTRL-SHIFT and typing hexadecimal digits.
     */
    return xim_queue_key_press_event(event);
}
#endif


/****************************************************************************
 * Selection handlers:
 */

/*ARGSUSED*/
    static gint
selection_clear_event(GtkWidget        *widget,
              GdkEventSelection    *event,
              gpointer        user_data)
{
    if (event->selection == clip_plus.gtk_sel_atom)
    clip_lose_selection(&clip_plus);
    else
    clip_lose_selection(&clip_star);

    if (gtk_main_level() > 0)
    gtk_main_quit();

    return TRUE;
}

#define RS_NONE    0    /* selection_received_cb() not called yet */
#define RS_OK    1    /* selection_received_cb() called and OK */
#define RS_FAIL    2    /* selection_received_cb() called and failed */
static int received_selection = RS_NONE;

/*ARGSUSED*/
    static void
selection_received_cb(GtkWidget        *widget,
              GtkSelectionData    *data,
              guint        time_,
              gpointer        user_data)
{
    VimClipboard    *cbd;
    char_u        *text;
    char_u        *tmpbuf = NULL;
#ifdef HAVE_GTK2
    guchar        *tmpbuf_utf8 = NULL;
#endif
    int            len;
    int            motion_type;

    if (data->selection == clip_plus.gtk_sel_atom)
    cbd = &clip_plus;
    else
    cbd = &clip_star;

    text = (char_u *)data->data;
    len  = data->length;
    motion_type = MCHAR;

    if (text == NULL || len <= 0)
    {
    received_selection = RS_FAIL;
    /* clip_free_selection(cbd); ??? */

    if (gtk_main_level() > 0)
        gtk_main_quit();

    return;
    }

    if (data->type == vim_atom)
    {
    motion_type = *text++;
    --len;
    }
#ifdef HAVE_GTK2
    /* gtk_selection_data_get_text() handles all the nasty details
     * and targets and encodings etc.  This rocks so hard. */
    else
    {
    tmpbuf_utf8 = gtk_selection_data_get_text(data);
    if (tmpbuf_utf8 != NULL)
    {
        len = STRLEN(tmpbuf_utf8);
        if (input_conv.vc_type != CONV_NONE)
        {
        tmpbuf = string_convert(&input_conv, tmpbuf_utf8, &len);
        if (tmpbuf != NULL)
            text = tmpbuf;
        }
        else
        text = tmpbuf_utf8;
    }
    }
#else /* !HAVE_GTK2 */
# ifdef FEAT_MBYTE
    else if (data->type == utf8_string_atom)
    {
    vimconv_T conv;

    conv.vc_type = CONV_NONE;
    convert_setup(&conv, (char_u *)"utf-8", p_enc);

    if (conv.vc_type != CONV_NONE)
    {
        tmpbuf = string_convert(&conv, text, &len);
        convert_setup(&conv, NULL, NULL);
    }
    if (tmpbuf != NULL)
        text = tmpbuf;
    }
# endif
    else if (data->type == compound_text_atom || data->type == text_atom)
    {
    char        **list = NULL;
    int        count;
    int        i;
    unsigned    tmplen = 0;

    count = gdk_text_property_to_text_list(data->type, data->format,
                           data->data, data->length,
                           &list);
    for (i = 0; i < count; ++i)
        tmplen += strlen(list[i]);

    tmpbuf = alloc(tmplen + 1);
    if (tmpbuf != NULL)
    {
        tmpbuf[0] = NUL;
        for (i = 0; i < count; ++i)
        STRCAT(tmpbuf, list[i]);
        text = tmpbuf;
        len  = tmplen;
    }

    if (list != NULL)
        gdk_free_text_list(list);
    }
#endif /* !HAVE_GTK2 */

    clip_yank_selection(motion_type, text, (long)len, cbd);
    received_selection = RS_OK;
    vim_free(tmpbuf);
#ifdef HAVE_GTK2
    g_free(tmpbuf_utf8);
#endif

    if (gtk_main_level() > 0)
    gtk_main_quit();
}

/*
 * Prepare our selection data for passing it to the external selection
 * client.
 */
/*ARGSUSED*/
    static void
selection_get_cb(GtkWidget        *widget,
         GtkSelectionData   *selection_data,
         guint            info,
         guint            time_,
         gpointer        user_data)
{
    char_u        *string;
    char_u        *tmpbuf;
    long_u        tmplen;
    int            length;
    int            motion_type;
    GdkAtom        type;
    VimClipboard    *cbd;

    if (selection_data->selection == clip_plus.gtk_sel_atom)
    cbd = &clip_plus;
    else
    cbd = &clip_star;

    if (!cbd->owned)
    return;            /* Shouldn't ever happen */

    if (info != (guint)TARGET_STRING
#ifdef FEAT_MBYTE
        && info != (guint)TARGET_UTF8_STRING
#endif
        && info != (guint)TARGET_VIM
        && info != (guint)TARGET_COMPOUND_TEXT
        && info != (guint)TARGET_TEXT)
    return;

    /* get the selection from the '*'/'+' register */
    clip_get_selection(cbd);

    motion_type = clip_convert_selection(&string, &tmplen, cbd);
    if (motion_type < 0 || string == NULL)
    return;
    /* Due to int arguments we can't handle more than G_MAXINT.  Also
     * reserve one extra byte for NUL or the motion type; just in case.
     * (Not that pasting 2G of text is ever going to work, but... ;-) */
    length = MIN(tmplen, (long_u)(G_MAXINT - 1));

    if (info == (guint)TARGET_VIM)
    {
    tmpbuf = alloc((unsigned)length + 1);
    if (tmpbuf != NULL)
    {
        tmpbuf[0] = motion_type;
        mch_memmove(tmpbuf + 1, string, (size_t)length);
    }
    /* For our own format, the first byte contains the motion type */
    ++length;
    vim_free(string);
    string = tmpbuf;
    type = vim_atom;
    }
#ifdef HAVE_GTK2
    /* gtk_selection_data_set_text() handles everything for us.  This is
     * so easy and simple and cool, it'd be insane not to use it. */
    else
    {
    if (output_conv.vc_type != CONV_NONE)
    {
        tmpbuf = string_convert(&output_conv, string, &length);
        vim_free(string);
        if (tmpbuf == NULL)
        return;
        string = tmpbuf;
    }
    /* Validate the string to avoid runtime warnings */
    if (g_utf8_validate((const char *)string, (gssize)length, NULL))
    {
        gtk_selection_data_set_text(selection_data,
                    (const char *)string, length);
    }
    vim_free(string);
    return;
    }
#else /* !HAVE_GTK2 */
# ifdef FEAT_MBYTE
    else if (info == (guint)TARGET_UTF8_STRING)
    {
    vimconv_T conv;

    conv.vc_type = CONV_NONE;
    convert_setup(&conv, p_enc, (char_u *)"utf-8");

    if (conv.vc_type != CONV_NONE)
    {
        tmpbuf = string_convert(&conv, string, &length);
        convert_setup(&conv, NULL, NULL);
        vim_free(string);
        string = tmpbuf;
    }
    type = utf8_string_atom;
    }
# endif
    else if (info == (guint)TARGET_COMPOUND_TEXT
        || info == (guint)TARGET_TEXT)
    {
    int format;

    /* Copy the string to ensure NUL-termination */
    tmpbuf = vim_strnsave(string, length);
    vim_free(string);
    if (tmpbuf != NULL)
    {
        gdk_string_to_compound_text((const char *)tmpbuf,
                    &type, &format, &string, &length);
        vim_free(tmpbuf);
        selection_data->type = type;
        selection_data->format = format;
        gtk_selection_data_set(selection_data, type, format, string, length);
        gdk_free_compound_text(string);
    }
    return;
    }
    else
    {
    type = GDK_TARGET_STRING;
    }
#endif /* !HAVE_GTK2 */

    if (string != NULL)
    {
    selection_data->type = selection_data->target;
    selection_data->format = 8;    /* 8 bits per char */

    gtk_selection_data_set(selection_data, type, 8, string, length);
    vim_free(string);
    }
}

/*
 * Check if the GUI can be started.  Called before gvimrc is sourced.
 * Return OK or FAIL.
 */
    int
gui_mch_init_check(void)
{
#ifndef HAVE_GTK2
    /* This is needed to make the locale handling consistant between the GUI
     * and the rest of VIM. */
    gtk_set_locale();
#endif

#ifdef FEAT_GUI_GNOME
    if (gtk_socket_id == 0)
    using_gnome = 1;
#endif

    /* Don't use gtk_init() or gnome_init(), it exits on failure. */
    if (!gtk_init_check(&gui_argc, &gui_argv))
    {
    gui.dying = TRUE;
    EMSG(_(e_opendisp));
    return FAIL;
    }

    return OK;
}


/****************************************************************************
 * Mouse handling callbacks
 */


static guint mouse_click_timer = 0;
static int mouse_timed_out = TRUE;

/*
 * Timer used to recognize multiple clicks of the mouse button
 */
    static gint
mouse_click_timer_cb(gpointer data)
{
    /* we don't use this information currently */
    int *timed_out = (int *) data;

    *timed_out = TRUE;
    return FALSE;        /* don't happen again */
}

static guint motion_repeat_timer  = 0;
static int   motion_repeat_offset = FALSE;
static gint  motion_repeat_timer_cb(gpointer);

    static void
process_motion_notify(int x, int y, GdkModifierType state)
{
    int        button;
    int_u   vim_modifiers;

    button = (state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK |
               GDK_BUTTON3_MASK | GDK_BUTTON4_MASK |
               GDK_BUTTON5_MASK))
          ? MOUSE_DRAG : ' ';

    /* If our pointer is currently hidden, then we should show it. */
    gui_mch_mousehide(FALSE);

    /* Just moving the rodent above the drawing area without any button
     * being pressed. */
    if (button != MOUSE_DRAG)
    {
    gui_mouse_moved(x, y);
    return;
    }

    /* translate modifier coding between the main engine and GTK */
    vim_modifiers = 0x0;
    if (state & GDK_SHIFT_MASK)
    vim_modifiers |= MOUSE_SHIFT;
    if (state & GDK_CONTROL_MASK)
    vim_modifiers |= MOUSE_CTRL;
    if (state & GDK_MOD1_MASK)
    vim_modifiers |= MOUSE_ALT;

    /* inform the editor engine about the occurence of this event */
    gui_send_mouse_event(button, x, y, FALSE, vim_modifiers);

    if (gtk_main_level() > 0)
    gtk_main_quit();

    /*
     * Auto repeat timer handling.
     */
    if (x < 0 || y < 0
        || x >= gui.drawarea->allocation.width
        || y >= gui.drawarea->allocation.height)
    {

    int dx;
    int dy;
    int offshoot;
    int delay = 10;

    /* Calculate the maximal distance of the cursor from the drawing area.
     * (offshoot can't become negative here!).
     */
    dx = x < 0 ? -x : x - gui.drawarea->allocation.width;
    dy = y < 0 ? -y : y - gui.drawarea->allocation.height;

    offshoot = dx > dy ? dx : dy;

    /* Make a linearly declaying timer delay with a threshold of 5 at a
     * distance of 127 pixels from the main window.
     *
     * One could think endlessly about the most ergonomic variant here.
     * For example it could make sense to calculate the distance from the
     * drags start instead...
     *
     * Maybe a parabolic interpolation would suite us better here too...
     */
    if (offshoot > 127)
    {
        /* 5 appears to be somehow near to my perceptual limits :-). */
        delay = 5;
    }
    else
    {
        delay = (130 * (127 - offshoot)) / 127 + 5;
    }

    /* shoot again */
    if (!motion_repeat_timer)
        motion_repeat_timer = gtk_timeout_add((guint32)delay,
                        motion_repeat_timer_cb, NULL);
    }
}

/*
 * Timer used to recognize multiple clicks of the mouse button.
 */
/*ARGSUSED0*/
    static gint
motion_repeat_timer_cb(gpointer data)
{
    int            x;
    int            y;
    GdkModifierType state;

    gdk_window_get_pointer(gui.drawarea->window, &x, &y, &state);

    if (!(state & (GDK_BUTTON1_MASK | GDK_BUTTON2_MASK |
           GDK_BUTTON3_MASK | GDK_BUTTON4_MASK |
           GDK_BUTTON5_MASK)))
    {
    motion_repeat_timer = 0;
    return FALSE;
    }

    /* If there already is a mouse click in the input buffer, wait another
     * time (otherwise we would create a backlog of clicks) */
    if (vim_used_in_input_buf() > 10)
    return TRUE;

    motion_repeat_timer = 0;

    /*
     * Fake a motion event.
     * Trick: Pretend the mouse moved to the next character on every other
     * event, otherwise drag events will be discarded, because they are still
     * in the same character.
     */
    if (motion_repeat_offset)
    x += gui.char_width;

    motion_repeat_offset = !motion_repeat_offset;
    process_motion_notify(x, y, state);

    /* Don't happen again.  We will get reinstalled in the synthetic event
     * if needed -- thus repeating should still work. */
    return FALSE;
}

/*ARGSUSED2*/
    static gint
motion_notify_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
    if (event->is_hint)
    {
    int        x;
    int        y;
    GdkModifierType    state;

    gdk_window_get_pointer(widget->window, &x, &y, &state);
    process_motion_notify(x, y, state);
    }
    else
    {
    process_motion_notify((int)event->x, (int)event->y,
                  (GdkModifierType)event->state);
    }

    return TRUE; /* handled */
}


/*
 * Mouse button handling.  Note please that we are capturing multiple click's
 * by our own timeout mechanism instead of the one provided by GTK+ itself.
 * This is due to the way the generic VIM code is recognizing multiple clicks.
 */
/*ARGSUSED2*/
    static gint
button_press_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
    int button;
    int repeated_click = FALSE;
    int x, y;
    int_u vim_modifiers;

    /* Make sure we have focus now we've been selected */
    if (gtk_socket_id != 0 && !GTK_WIDGET_HAS_FOCUS(widget))
    gtk_widget_grab_focus(widget);

    /*
     * Don't let additional events about multiple clicks send by GTK to us
     * after the initial button press event confuse us.
     */
    if (event->type != GDK_BUTTON_PRESS)
    return FALSE;

    x = event->x;
    y = event->y;

    /* Handle multiple clicks */
    if (!mouse_timed_out && mouse_click_timer)
    {
    gtk_timeout_remove(mouse_click_timer);
    mouse_click_timer = 0;
    repeated_click = TRUE;
    }

    mouse_timed_out = FALSE;
    mouse_click_timer = gtk_timeout_add((guint32)p_mouset,
                  mouse_click_timer_cb, &mouse_timed_out);

    switch (event->button)
    {
    case 1:
    button = MOUSE_LEFT;
    break;
    case 2:
    button = MOUSE_MIDDLE;
    break;
    case 3:
    button = MOUSE_RIGHT;
    break;
#ifndef HAVE_GTK2
    case 4:
    button = MOUSE_4;
    break;
    case 5:
    button = MOUSE_5;
    break;
#endif
    default:
    return FALSE;        /* Unknown button */
    }

#ifdef FEAT_XIM
    /* cancel any preediting */
    if (preedit_start_col != MAXCOL)
    xim_reset();
#endif

    vim_modifiers = 0x0;
    if (event->state & GDK_SHIFT_MASK)
    vim_modifiers |= MOUSE_SHIFT;
    if (event->state & GDK_CONTROL_MASK)
    vim_modifiers |= MOUSE_CTRL;
    if (event->state & GDK_MOD1_MASK)
    vim_modifiers |= MOUSE_ALT;

    gui_send_mouse_event(button, x, y, repeated_click, vim_modifiers);
    if (gtk_main_level() > 0)
    gtk_main_quit(); /* make sure the above will be handled immediately */

    return TRUE;
}

#ifdef HAVE_GTK2
/*
 * GTK+ 2 doesn't handle mouse buttons 4, 5, 6 and 7 the same way as GTK+ 1.
 * Instead, it abstracts scrolling via the new GdkEventScroll.
 */
/*ARGSUSED2*/
    static gboolean
scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
{
    int        button;
    int_u   vim_modifiers = 0;

    if (gtk_socket_id != 0 && !GTK_WIDGET_HAS_FOCUS(widget))
    gtk_widget_grab_focus(widget);

    switch (event->direction)
    {
    case GDK_SCROLL_UP:
        button = MOUSE_4;
        break;
    case GDK_SCROLL_DOWN:
        button = MOUSE_5;
        break;
    default: /* We don't care about left and right...  Yet. */
        return FALSE;
    }

# ifdef FEAT_XIM
    /* cancel any preediting */
    if (preedit_start_col != MAXCOL)
    xim_reset();
# endif

    if (event->state & GDK_SHIFT_MASK)
    vim_modifiers |= MOUSE_SHIFT;
    if (event->state & GDK_CONTROL_MASK)
    vim_modifiers |= MOUSE_CTRL;
    if (event->state & GDK_MOD1_MASK)
    vim_modifiers |= MOUSE_ALT;

    gui_send_mouse_event(button, (int)event->x, (int)event->y,
                            FALSE, vim_modifiers);

    if (gtk_main_level() > 0)
    gtk_main_quit(); /* make sure the above will be handled immediately */

    return TRUE;
}
#endif /* HAVE_GTK2 */


/*ARGSUSED*/
    static gint
button_release_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
    int x, y;
    int_u vim_modifiers;

    /* Remove any motion "machine gun" timers used for automatic further
       extension of allocation areas if outside of the applications window
       area .*/
    if (motion_repeat_timer)
    {
    gtk_timeout_remove(motion_repeat_timer);
    motion_repeat_timer = 0;
    }

    x = event->x;
    y = event->y;

    vim_modifiers = 0x0;
    if (event->state & GDK_SHIFT_MASK)
    vim_modifiers |= MOUSE_SHIFT;
    if (event->state & GDK_CONTROL_MASK)
    vim_modifiers |= MOUSE_CTRL;
    if (event->state & GDK_MOD1_MASK)
    vim_modifiers |= MOUSE_ALT;

    gui_send_mouse_event(MOUSE_RELEASE, x, y, FALSE, vim_modifiers);
    if (gtk_main_level() > 0)
    gtk_main_quit();    /* make sure it will be handled immediately */

    return TRUE;
}


#ifdef FEAT_DND
/****************************************************************************
 * Drag aNd Drop support handlers.
 */

    static void
drag_handle_uri_list(GdkDragContext    *context,
             GtkSelectionData    *data,
             guint        time_,
             GdkModifierType    state)
{
    char_u  **fnames;
    int        redo_dirs = FALSE;
    int        i;
    int        n;
    char_u  *start;
    char_u  *copy;
    char_u  *names;
    int        nfiles = 0;
    int        url = FALSE;

    names = data->data;
    copy = alloc((unsigned)(data->length + 1));
    if (copy == NULL)
    return;
    /*
     * Count how many items there may be and separate them with a NUL.
     * Apparently the items are separated with \r\n.  This is not documented,
     * thus be careful not to go past the end.    Also allow separation with NUL
     * characters.
     */
    start = copy;
    for (i = 0; i < data->length; ++i)
    {
    if (names[i] == NUL || names[i] == '\n' || names[i] == '\r')
    {
        if (start > copy && start[-1] != NUL)
        {
        ++nfiles;
        *start++ = NUL;
        }
    }
    else if (names[i] == '%' && i + 2 < data->length
                          && hexhex2nr(names + i + 1) > 0)
    {
        *start++ = hexhex2nr(names + i + 1);
        i += 2;
    }
    else
        *start++ = names[i];
    }
    if (start > copy && start[-1] != NUL)
    {
    *start = NUL;    /* last item didn't have \r or \n */
    ++nfiles;
    }

    fnames = (char_u **)alloc((unsigned)(nfiles * sizeof(char_u *)));
    if (fnames == NULL)
    {
    vim_free(copy);
    return;
    }
    url = FALSE;    /* Set when a non-file URL was found. */
    start = copy;
    for (n = 0; n < nfiles; ++n)
    {
    if (STRNCMP(start, "file://localhost", 16) == 0)
        start += 16;
    else
    {
        if (STRNCMP(start, "file:", 5) != 0)
        url = TRUE;
        else
        {
        start += 5;
        while (start[0] == '/' && start[1] == '/')
            ++start;
        }
    }
    fnames[n] = vim_strsave(start);
    start += STRLEN(start) + 1;
    }

    /* accept */
    gtk_drag_finish(context, TRUE, FALSE, time_);

    /* Special handling when all items are real files. */
    if (url == FALSE)
    {
    if (nfiles == 1)
    {
        if (fnames[0] != NULL && mch_isdir(fnames[0]))
        {
        /* Handle dropping a directory on Vim. */
        if (mch_chdir((char *)fnames[0]) == 0)
        {
            vim_free(fnames[0]);
            fnames[0] = NULL;
            redo_dirs = TRUE;
        }
        }
    }
    else
    {
        /* Ignore any directories */
        for (i = 0; i < nfiles; ++i)
        {
        if (fnames[i] != NULL && mch_isdir(fnames[i]))
        {
            vim_free(fnames[i]);
            fnames[i] = NULL;
        }
        }
    }

    if (state & GDK_SHIFT_MASK)
    {
        /* Shift held down, change to first file's directory */
        if (fnames[0] != NULL && vim_chdirfile(fnames[0]) == OK)
        redo_dirs = TRUE;
    }
    else
    {
        char_u    dirname[MAXPATHL];
        char_u    *s;

        /* Shorten dropped file names. */
        if (mch_dirname(dirname, MAXPATHL) == OK)
        for (i = 0; i < nfiles; ++i)
            if (fnames[i] != NULL)
            {
            s = shorten_fname(fnames[i], dirname);
            if (s != NULL && (s = vim_strsave(s)) != NULL)
            {
                vim_free(fnames[i]);
                fnames[i] = s;
            }
            }
    }
    }
    vim_free(copy);

    /* Handle the drop, :edit or :split to get to the file */
    handle_drop(nfiles, fnames, (state & GDK_CONTROL_MASK) != 0);

    if (redo_dirs)
    shorten_fnames(TRUE);

    /* Update the screen display */
    update_screen(NOT_VALID);
# ifdef FEAT_MENU
    gui_update_menus(0);
# endif
    setcursor();
    out_flush();
    gui_update_cursor(FALSE, FALSE);
    gui_mch_flush();
}

    static void
drag_handle_text(GdkDragContext        *context,
         GtkSelectionData   *data,
         guint            time_,
         GdkModifierType    state)
{
    char_u  dropkey[6] = {CSI, KS_MODIFIER, 0, CSI, KS_EXTRA, (char_u)KE_DROP};
    char_u  *text;
    int        len;
# ifdef FEAT_MBYTE
    char_u  *tmpbuf = NULL;
# endif

    text = data->data;
    len  = data->length;

# ifdef FEAT_MBYTE
    if (data->type == utf8_string_atom)
    {
#  ifdef HAVE_GTK2
    if (input_conv.vc_type != CONV_NONE)
        tmpbuf = string_convert(&input_conv, text, &len);
#  else
    vimconv_T conv;

    conv.vc_type = CONV_NONE;
    convert_setup(&conv, (char_u *)"utf-8", p_enc);

    if (conv.vc_type != CONV_NONE)
    {
        tmpbuf = string_convert(&conv, text, &len);
        convert_setup(&conv, NULL, NULL);
    }
#  endif
    if (tmpbuf != NULL)
        text = tmpbuf;
    }
# endif /* FEAT_MBYTE */

    dnd_yank_drag_data(text, (long)len);
    gtk_drag_finish(context, TRUE, FALSE, time_); /* accept */
# ifdef FEAT_MBYTE
    vim_free(tmpbuf);
# endif

    if (state & GDK_SHIFT_MASK)
    dropkey[2] |= MOD_MASK_SHIFT;
    if (state & GDK_CONTROL_MASK)
    dropkey[2] |= MOD_MASK_CTRL;
    if (state & GDK_MOD1_MASK)
    dropkey[2] |= MOD_MASK_ALT;

    if (dropkey[2] != 0)
    add_to_input_buf(dropkey, (int)sizeof(dropkey));
    else
    add_to_input_buf(dropkey + 3, (int)(sizeof(dropkey) - 3));

    if (gtk_main_level() > 0)
    gtk_main_quit();
}

/*
 * DND receiver.
 */
/*ARGSUSED2*/
    static void
drag_data_received_cb(GtkWidget        *widget,
              GdkDragContext    *context,
              gint        x,
              gint        y,
              GtkSelectionData    *data,
              guint        info,
              guint        time_,
              gpointer        user_data)
{
    GdkModifierType state;

    /* Guard against trash */
    if (data->data == NULL
        || data->length <= 0
        || data->format != 8
        || data->data[data->length] != '\0')
    {
    gtk_drag_finish(context, FALSE, FALSE, time_);
    return;
    }

    /* Get the current modifier state for proper distinguishment between
     * different operations later. */
    gdk_window_get_pointer(widget->window, NULL, NULL, &state);

    /* Not sure about the role of "text/plain" here... */
    if (info == (guint)TARGET_TEXT_URI_LIST)
    drag_handle_uri_list(context, data, time_, state);
    else
    drag_handle_text(context, data, time_, state);

}
#endif /* FEAT_DND */


#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
/*
 * GnomeClient interact callback.  Check for unsaved buffers that cannot
 * be abandoned and pop up a dialog asking the user for confirmation if
 * necessary.
 */
/*ARGSUSED0*/
    static void
sm_client_check_changed_any(GnomeClient        *client,
                gint        key,
                GnomeDialogType type,
                gpointer        data)
{
    cmdmod_T    save_cmdmod;
    gboolean    shutdown_cancelled;

    save_cmdmod = cmdmod;

# ifdef FEAT_BROWSE
    cmdmod.browse = TRUE;
# endif
# if defined(FEAT_GUI_DIALOG) || defined(FEAT_CON_DIALOG)
    cmdmod.confirm = TRUE;
# endif
    /*
     * If there are changed buffers, present the user with
     * a dialog if possible, otherwise give an error message.
     */
    shutdown_cancelled = check_changed_any(FALSE);

    exiting = FALSE;
    cmdmod = save_cmdmod;
    setcursor(); /* position the cursor */
    out_flush();
    /*
     * If the user hit the [Cancel] button the whole shutdown
     * will be cancelled.  Wow, quite powerful feature (:
     */
    gnome_interaction_key_return(key, shutdown_cancelled);
}

/*
 * Generate a script that can be used to restore the current editing session.
 * Save the value of v:this_session before running :mksession in order to make
 * automagic session save fully transparent.  Return TRUE on success.
 */
    static int
write_session_file(char_u *filename)
{
    char_u        *escaped_filename;
    char        *mksession_cmdline;
    unsigned int    save_ssop_flags;
    int            failed;

    /*
     * Build an ex command line to create a script that restores the current
     * session if executed.  Escape the filename to avoid nasty surprises.
     */
    escaped_filename = vim_strsave_escaped(filename, escape_chars);
    if (escaped_filename == NULL)
    return FALSE;
    mksession_cmdline = g_strconcat("mksession ", (char *)escaped_filename, NULL);
    vim_free(escaped_filename);
    /*
     * Use a reasonable hardcoded set of 'sessionoptions' flags to avoid
     * unpredictable effects when the session is saved automatically.  Also,
     * we definitely need SSOP_GLOBALS to be able to restore v:this_session.
     * Don't use SSOP_BUFFERS to prevent the buffer list from becoming
     * enormously large if the GNOME session feature is used regularly.
     */
    save_ssop_flags = ssop_flags;
    ssop_flags = (SSOP_BLANK|SSOP_CURDIR|SSOP_FOLDS|SSOP_GLOBALS
          |SSOP_HELP|SSOP_OPTIONS|SSOP_WINSIZE);

    do_cmdline_cmd((char_u *)"let Save_VV_this_session = v:this_session");
    failed = (do_cmdline_cmd((char_u *)mksession_cmdline) == FAIL);
    do_cmdline_cmd((char_u *)"let v:this_session = Save_VV_this_session");
    do_unlet((char_u *)"Save_VV_this_session");

    ssop_flags = save_ssop_flags;
    g_free(mksession_cmdline);
    /*
     * Reopen the file and append a command to restore v:this_session,
     * as if this save never happened.    This is to avoid conflicts with
     * the user's own sessions.  FIXME: It's probably less hackish to add
     * a "stealth" flag to 'sessionoptions' -- gotta ask Bram.
     */
    if (!failed)
    {
    FILE *fd;

    fd = open_exfile(filename, TRUE, APPENDBIN);

    failed = (fd == NULL
           || put_line(fd, "let v:this_session = Save_VV_this_session") == FAIL
           || put_line(fd, "unlet Save_VV_this_session") == FAIL);

    if (fd != NULL && fclose(fd) != 0)
        failed = TRUE;

    if (failed)
        mch_remove(filename);
    }

    return !failed;
}

/*
 * "save_yourself" signal handler.  Initiate an interaction to ask the user
 * for confirmation if necessary.  Save the current editing session and tell
 * the session manager how to restart Vim.
 */
/*ARGSUSED1*/
    static gboolean
sm_client_save_yourself(GnomeClient        *client,
            gint            phase,
            GnomeSaveStyle        save_style,
            gboolean        shutdown,
            GnomeInteractStyle  interact_style,
            gboolean        fast,
            gpointer        data)
{
    static const char    suffix[] = "-session.vim";
    char        *session_file;
    unsigned int    len;
    gboolean        success;

    /* Always request an interaction if possible.  check_changed_any()
     * won't actually show a dialog unless any buffers have been modified.
     * There doesn't seem to be an obvious way to check that without
     * automatically firing the dialog.  Anyway, it works just fine. */
    if (interact_style == GNOME_INTERACT_ANY)
    gnome_client_request_interaction(client, GNOME_DIALOG_NORMAL,
                     &sm_client_check_changed_any,
                     NULL);
    out_flush();
    ml_sync_all(FALSE, FALSE); /* preserve all swap files */

    /* The path is unique for each session save.  We do neither know nor care
     * which session script will actually be used later.  This decision is in
     * the domain of the session manager. */
    session_file = gnome_config_get_real_path(
            gnome_client_get_config_prefix(client));
    len = strlen(session_file);

    if (len > 0 && session_file[len-1] == G_DIR_SEPARATOR)
    --len; /* get rid of the superfluous trailing '/' */

    session_file = g_renew(char, session_file, len + sizeof(suffix));
    memcpy(session_file + len, suffix, sizeof(suffix));

    success = write_session_file((char_u *)session_file);

    if (success)
    {
    const char  *argv[8];
    int        i;

    /* Tell the session manager how to wipe out the stored session data.
     * This isn't as dangerous as it looks, don't worry :)    session_file
     * is a unique absolute filename.  Usually it'll be something like
     * `/home/user/.gnome2/vim-XXXXXX-session.vim'. */
    i = 0;
    argv[i++] = "rm";
    argv[i++] = session_file;
    argv[i] = NULL;

    gnome_client_set_discard_command(client, i, (char **)argv);

    /* Tell the session manager how to restore the just saved session.
     * This is easily done thanks to Vim's -S option.  Pass the -f flag
     * since there's no need to fork -- it might even cause confusion.
     * Also pass the window role to give the WM something to match on.
     * The role is set in gui_mch_open(), thus should _never_ be NULL. */
    i = 0;
    argv[i++] = restart_command;
    argv[i++] = "-f";
    argv[i++] = "-g";
# ifdef HAVE_GTK2
    argv[i++] = "--role";
    argv[i++] = gtk_window_get_role(GTK_WINDOW(gui.mainwin));
# endif
    argv[i++] = "-S";
    argv[i++] = session_file;
    argv[i] = NULL;

    gnome_client_set_restart_command(client, i, (char **)argv);
    gnome_client_set_clone_command(client, 0, NULL);
    }

    g_free(session_file);

    return success;
}

/*
 * Called when the session manager wants us to die.  There isn't much to save
 * here since "save_yourself" has been emitted before (unless serious trouble
 * is happening).
 */
/*ARGSUSED0*/
    static void
sm_client_die(GnomeClient *client, gpointer data)
{
    /* Don't write messages to the GUI anymore */
    full_screen = FALSE;

    STRNCPY(IObuff, _("Vim: Received \"die\" request from session manager\n"),
        IOSIZE);
    IObuff[IOSIZE - 1] = NUL;
    preserve_exit();
}

/*
 * Connect our signal handlers to be notified on session save and shutdown.
 */
    static void
setup_save_yourself(void)
{
    GnomeClient *client;

    client = gnome_master_client();

    if (client != NULL)
    {
    /* Must use the deprecated gtk_signal_connect() for compatibility
     * with GNOME 1.  Arrgh, zombies! */
    gtk_signal_connect(GTK_OBJECT(client), "save_yourself",
               GTK_SIGNAL_FUNC(&sm_client_save_yourself), NULL);
    gtk_signal_connect(GTK_OBJECT(client), "die",
               GTK_SIGNAL_FUNC(&sm_client_die), NULL);
    }
}

#else /* !(FEAT_GUI_GNOME && FEAT_SESSION) */

# ifdef USE_XSMP
/*
 * GTK tells us that XSMP needs attention
 */
/*ARGSUSED*/
    static gboolean
local_xsmp_handle_requests(source, condition, data)
    GIOChannel        *source;
    GIOCondition    condition;
    gpointer        data;
{
    if (condition == G_IO_IN)
    {
    /* Do stuff; maybe close connection */
    if (xsmp_handle_requests() == FAIL)
        g_io_channel_unref((GIOChannel *)data);
    return TRUE;
    }
    /* Error */
    g_io_channel_unref((GIOChannel *)data);
    xsmp_close();
    return TRUE;
}
# endif /* USE_XSMP */

/*
 * Setup the WM_PROTOCOLS to indicate we want the WM_SAVE_YOURSELF event.
 * This is an ugly use of X functions.    GTK doesn't offer an alternative.
 */
    static void
setup_save_yourself(void)
{
    Atom    *existing_atoms = NULL;
    int        count = 0;

#ifdef USE_XSMP
    if (xsmp_icefd != -1)
    {
    /*
     * Use XSMP is preference to legacy WM_SAVE_YOURSELF;
     * set up GTK IO monitor
     */
    GIOChannel *g_io = g_io_channel_unix_new(xsmp_icefd);

    g_io_add_watch(g_io, G_IO_IN | G_IO_ERR | G_IO_HUP,
                  local_xsmp_handle_requests, (gpointer)g_io);
    }
    else
#endif
    {
    /* Fall back to old method */

    /* first get the existing value */
    if (XGetWMProtocols(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
            GDK_WINDOW_XWINDOW(gui.mainwin->window),
            &existing_atoms, &count))
    {
        Atom    *new_atoms;
        Atom    save_yourself_xatom;
        int    i;

        save_yourself_xatom = GET_X_ATOM(save_yourself_atom);

        /* check if WM_SAVE_YOURSELF isn't there yet */
        for (i = 0; i < count; ++i)
        if (existing_atoms[i] == save_yourself_xatom)
            break;

        if (i == count)
        {
        /* allocate an Atoms array which is one item longer */
        new_atoms = (Atom *)alloc((unsigned)((count + 1)
                                 * sizeof(Atom)));
        if (new_atoms != NULL)
        {
            memcpy(new_atoms, existing_atoms, count * sizeof(Atom));
            new_atoms[count] = save_yourself_xatom;
            XSetWMProtocols(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
                GDK_WINDOW_XWINDOW(gui.mainwin->window),
                new_atoms, count + 1);
            vim_free(new_atoms);
        }
        }
        XFree(existing_atoms);
    }
    }
}

# ifdef HAVE_GTK2
/*
 * Installing a global event filter seems to be the only way to catch
 * client messages of type WM_PROTOCOLS without overriding GDK's own
 * client message event filter.  Well, that's still better than trying
 * to guess what the GDK filter had done if it had been invoked instead
 * (This is what we did for GTK+ 1.2, see below).
 *
 * GTK2_FIXME:    This doesn't seem to work.  For some reason we never
 * receive WM_SAVE_YOURSELF even though everything is set up correctly.
 * I have the nasty feeling modern session managers just don't send this
 * deprecated message anymore.    Addition: confirmed by several people.
 *
 * The GNOME session support is much cooler anyway.  Unlike this ugly
 * WM_SAVE_YOURSELF hack it actually stores the session...  And yes,
 * it should work with KDE as well.
 */
/*ARGSUSED1*/
    static GdkFilterReturn
global_event_filter(GdkXEvent *xev, GdkEvent *event, gpointer data)
{
    XEvent *xevent = (XEvent *)xev;

    if (xevent != NULL
        && xevent->type == ClientMessage
        && xevent->xclient.message_type == GET_X_ATOM(wm_protocols_atom)
        && xevent->xclient.data.l[0] == GET_X_ATOM(save_yourself_atom))
    {
    out_flush();
    ml_sync_all(FALSE, FALSE); /* preserve all swap files */
    /*
     * Set the window's WM_COMMAND property, to let the window manager
     * know we are done saving ourselves.  We don't want to be
     * restarted, thus set argv to NULL.
     */
    XSetCommand(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
            GDK_WINDOW_XWINDOW(gui.mainwin->window),
            NULL, 0);
    return GDK_FILTER_REMOVE;
    }

    return GDK_FILTER_CONTINUE;
}

# else /* !HAVE_GTK2 */

/*
 * GDK handler for X ClientMessage events.
 */
/*ARGSUSED2*/
    static GdkFilterReturn
gdk_wm_protocols_filter(GdkXEvent *xev, GdkEvent *event, gpointer data)
{
    /* From example in gdkevents.c/gdk_wm_protocols_filter */
    XEvent *xevent = (XEvent *)xev;

    if (xevent != NULL)
    {
    if (xevent->xclient.data.l[0] == GET_X_ATOM(save_yourself_atom))
    {
        out_flush();
        ml_sync_all(FALSE, FALSE);        /* preserve all swap files */

        /* Set the window's WM_COMMAND property, to let the window manager
         * know we are done saving ourselves.  We don't want to be
         * restarted, thus set argv to NULL. */
        XSetCommand(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
            GDK_WINDOW_XWINDOW(gui.mainwin->window),
            NULL, 0);
    }
    /*
     * Functionality from gdkevents.c/gdk_wm_protocols_filter;
     * Registering this filter apparently overrides the default GDK one,
     * so we need to perform its functionality.  There seems no way to
     * register for WM_PROTOCOLS, and only process the WM_SAVE_YOURSELF
     * bit; it's all or nothing.  Update: No, there is a way -- but it
     * only works with GTK+ 2 apparently.  See above.
     */
    else if (xevent->xclient.data.l[0] == GET_X_ATOM(gdk_wm_delete_window))
    {
        event->any.type = GDK_DELETE;
        return GDK_FILTER_TRANSLATE;
    }
    }

    return GDK_FILTER_REMOVE;
}
# endif /* !HAVE_GTK2 */

#endif /* !(FEAT_GUI_GNOME && FEAT_SESSION) */


/*
 * Setup the window icon & xcmdsrv comm after the main window has been realized.
 */
/*ARGSUSED*/
    static void
mainwin_realize(GtkWidget *widget, gpointer data)
{
/* If you get an error message here, you still need to unpack the runtime
 * archive! */
#ifdef magick
# undef magick
#endif
#ifdef HAVE_GTK2
  /* A bit hackish, but avoids casting later and allows optimization */
# define static static const
#endif
#define magick vim32x32
#include "../runtime/vim32x32.xpm"
#undef magick
#define magick vim16x16
#include "../runtime/vim16x16.xpm"
#undef magick
#define magick vim48x48
#include "../runtime/vim48x48.xpm"
#undef magick
#ifdef HAVE_GTK2
# undef static
#endif

    /* When started with "--echo-wid" argument, write window ID on stdout. */
    if (echo_wid_arg)
    {
    printf("WID: %ld\n", (long)GDK_WINDOW_XWINDOW(gui.mainwin->window));
    fflush(stdout);
    }

    if (vim_strchr(p_go, GO_ICON) != NULL)
    {
    /*
     * Add an icon to the main window. For fun and convenience of the user.
     */
#ifdef HAVE_GTK2
    GList *icons = NULL;

    icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim16x16));
    icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim32x32));
    icons = g_list_prepend(icons, gdk_pixbuf_new_from_xpm_data(vim48x48));

    gtk_window_set_icon_list(GTK_WINDOW(gui.mainwin), icons);

    g_list_foreach(icons, (GFunc)&g_object_unref, NULL);
    g_list_free(icons);

#else /* !HAVE_GTK2 */

    GdkPixmap   *icon;
    GdkBitmap   *icon_mask = NULL;
    char        **magick = vim32x32;
    Display        *xdisplay;
    Window        root_window;
    XIconSize   *size;
    int        number_sizes;
    /*
     * Adjust the icon to the preferences of the actual window manager.
     * This is once again a workaround for a defficiency in GTK+ 1.2.
     */
    xdisplay = GDK_WINDOW_XDISPLAY(gui.mainwin->window);
    root_window = XRootWindow(xdisplay, DefaultScreen(xdisplay));
    if (XGetIconSizes(xdisplay, root_window, &size, &number_sizes))
    {
        if (number_sizes > 0)
        {
        if (size->max_height >= 48 && size->max_height >= 48)
            magick = vim48x48;
        else if (size->max_height >= 32 && size->max_height >= 32)
            magick = vim32x32;
        else if (size->max_height >= 16 && size->max_height >= 16)
            magick = vim16x16;
        }
        XFree(size);
    }
    icon = gdk_pixmap_create_from_xpm_d(gui.mainwin->window,
                        &icon_mask, NULL, magick);
    if (icon != NULL)
        /* Note: for some reason gdk_window_set_icon() doesn't acquire
         * a reference on the pixmap, thus we _have_ to leak it. */
        gdk_window_set_icon(gui.mainwin->window, NULL, icon, icon_mask);

#endif /* !HAVE_GTK2 */
    }

#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION))
    /* Register a handler for WM_SAVE_YOURSELF with GDK's low-level X I/F */
# ifdef HAVE_GTK2
    gdk_window_add_filter(NULL, &global_event_filter, NULL);
# else
    gdk_add_client_message_filter(wm_protocols_atom,
                  &gdk_wm_protocols_filter, NULL);
# endif
#endif
    /* Setup to indicate to the window manager that we want to catch the
     * WM_SAVE_YOURSELF event.    For GNOME, this connects to the session
     * manager instead. */
#if defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)
    if (using_gnome)
#endif
    setup_save_yourself();

#ifdef FEAT_CLIENTSERVER
    if (serverName == NULL && serverDelayedStartName != NULL)
    {
    /* This is a :gui command in a plain vim with no previous server */
    commWindow = GDK_WINDOW_XWINDOW(gui.mainwin->window);

    (void)serverRegisterName(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
                 serverDelayedStartName);
    }
    else
    {
    /*
     * Cannot handle "XLib-only" windows with gtk event routines, we'll
     * have to change the "server" registration to that of the main window
     * If we have not registered a name yet, remember the window
     */
    serverChangeRegisteredWindow(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
                     GDK_WINDOW_XWINDOW(gui.mainwin->window));
    }
    gtk_widget_add_events(gui.mainwin, GDK_PROPERTY_CHANGE_MASK);
    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "property_notify_event",
               GTK_SIGNAL_FUNC(property_event), NULL);
#endif
}

    static GdkCursor *
create_blank_pointer(void)
{
    GdkWindow    *root_window = NULL;
    GdkPixmap    *blank_mask;
    GdkCursor    *cursor;
    GdkColor    color = { 0, 0, 0, 0 };
    char    blank_data[] = { 0x0 };

#ifdef HAVE_GTK_MULTIHEAD
    root_window = gtk_widget_get_root_window(gui.mainwin);
#endif

    /* Create a pseudo blank pointer, which is in fact one pixel by one pixel
     * in size. */
    blank_mask = gdk_bitmap_create_from_data(root_window, blank_data, 1, 1);
    cursor = gdk_cursor_new_from_pixmap(blank_mask, blank_mask,
                    &color, &color, 0, 0);
    gdk_bitmap_unref(blank_mask);

    return cursor;
}

#ifdef HAVE_GTK_MULTIHEAD
/*ARGSUSED1*/
    static void
mainwin_screen_changed_cb(GtkWidget  *widget,
              GdkScreen  *previous_screen,
              gpointer   data)
{
    if (!gtk_widget_has_screen(widget))
    return;

    /*
     * Recreate the invisble mouse cursor.
     */
    if (gui.blank_pointer != NULL)
    gdk_cursor_unref(gui.blank_pointer);

    gui.blank_pointer = create_blank_pointer();

    if (gui.pointer_hidden && gui.drawarea->window != NULL)
    gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer);

    /*
     * Create a new PangoContext for this screen, and initialize it
     * with the current font if necessary.
     */
    if (gui.text_context != NULL)
    g_object_unref(gui.text_context);

    gui.text_context = gtk_widget_create_pango_context(widget);
    pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);

    if (gui.norm_font != NULL)
    {
    gui_mch_init_font(p_guifont, 0);
    gui_set_shellsize(FALSE, FALSE);
    }
}
#endif /* HAVE_GTK_MULTIHEAD */

/*
 * After the drawing area comes up, we calculate all colors and create the
 * dummy blank cursor.
 *
 * Don't try to set any VIM scrollbar sizes anywhere here. I'm relying on the
 * fact that the main VIM engine doesn't take them into account anywhere.
 */
/*ARGSUSED1*/
    static void
drawarea_realize_cb(GtkWidget *widget, gpointer data)
{
    GtkWidget *sbar;

#ifdef FEAT_XIM
    xim_init();
#endif
    gui_mch_new_colors();
    gui.text_gc = gdk_gc_new(gui.drawarea->window);

    gui.blank_pointer = create_blank_pointer();
    if (gui.pointer_hidden)
    gdk_window_set_cursor(widget->window, gui.blank_pointer);

    /* get the actual size of the scrollbars, if they are realized */
    sbar = firstwin->w_scrollbars[SBAR_LEFT].id;
    if (!sbar || (!gui.which_scrollbars[SBAR_LEFT]
                    && firstwin->w_scrollbars[SBAR_RIGHT].id))
    sbar = firstwin->w_scrollbars[SBAR_RIGHT].id;
    if (sbar && GTK_WIDGET_REALIZED(sbar) && sbar->allocation.width)
    gui.scrollbar_width = sbar->allocation.width;

    sbar = gui.bottom_sbar.id;
    if (sbar && GTK_WIDGET_REALIZED(sbar) && sbar->allocation.height)
    gui.scrollbar_height = sbar->allocation.height;
}

/*
 * Properly clean up on shutdown.
 */
/*ARGSUSED0*/
    static void
drawarea_unrealize_cb(GtkWidget *widget, gpointer data)
{
    /* Don't write messages to the GUI anymore */
    full_screen = FALSE;

#ifdef FEAT_XIM
    im_shutdown();
#endif
#ifdef HAVE_GTK2
    if (gui.ascii_glyphs != NULL)
    {
    pango_glyph_string_free(gui.ascii_glyphs);
    gui.ascii_glyphs = NULL;
    }
    if (gui.ascii_font != NULL)
    {
    g_object_unref(gui.ascii_font);
    gui.ascii_font = NULL;
    }
    g_object_unref(gui.text_context);
    gui.text_context = NULL;

    g_object_unref(gui.text_gc);
    gui.text_gc = NULL;

    gdk_cursor_unref(gui.blank_pointer);
    gui.blank_pointer = NULL;
#else
    gdk_gc_unref(gui.text_gc);
    gui.text_gc = NULL;

    gdk_cursor_destroy(gui.blank_pointer);
    gui.blank_pointer = NULL;
#endif
}

/*ARGSUSED0*/
    static void
drawarea_style_set_cb(GtkWidget    *widget,
              GtkStyle    *previous_style,
              gpointer    data)
{
    gui_mch_new_colors();
}

/*
 * Callback routine for the "delete_event" signal on the toplevel window.
 * Tries to vim gracefully, or refuses to exit with changed buffers.
 */
/*ARGSUSED*/
    static gint
delete_event_cb(GtkWidget *widget, GdkEventAny *event, gpointer data)
{
    gui_shell_closed();
    return TRUE;
}

#ifdef FEAT_TOOLBAR

# ifdef HAVE_GTK2
/*
 * This extra effort wouldn't be necessary if we only used stock icons in the
 * toolbar, as we do for all builtin icons.  But user-defined toolbar icons
 * shouldn't be treated differently, thus we do need this.
 */
    static void
icon_size_changed_foreach(GtkWidget *widget, gpointer user_data)
{
    if (GTK_IS_IMAGE(widget))
    {
    GtkImage *image = (GtkImage *)widget;

    /* User-defined icons are stored in a GtkIconSet */
    if (gtk_image_get_storage_type(image) == GTK_IMAGE_ICON_SET)
    {
        GtkIconSet    *icon_set;
        GtkIconSize    icon_size;

        gtk_image_get_icon_set(image, &icon_set, &icon_size);
        icon_size = (GtkIconSize)(long)user_data;

        gtk_icon_set_ref(icon_set);
        gtk_image_set_from_icon_set(image, icon_set, icon_size);
        gtk_icon_set_unref(icon_set);
    }
    }
    else if (GTK_IS_CONTAINER(widget))
    {
    gtk_container_foreach((GtkContainer *)widget,
                  &icon_size_changed_foreach,
                  user_data);
    }
}
# endif /* HAVE_GTK2 */

    static void
set_toolbar_style(GtkToolbar *toolbar)
{
    GtkToolbarStyle style;
# ifdef HAVE_GTK2
    GtkIconSize        size;
    GtkIconSize        oldsize;
# endif

# ifdef HAVE_GTK2
    if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ))
              == (TOOLBAR_TEXT | TOOLBAR_ICONS | TOOLBAR_HORIZ))
    style = GTK_TOOLBAR_BOTH_HORIZ;
    else
# endif
    if ((toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS))
              == (TOOLBAR_TEXT | TOOLBAR_ICONS))
    style = GTK_TOOLBAR_BOTH;
    else if (toolbar_flags & TOOLBAR_TEXT)
    style = GTK_TOOLBAR_TEXT;
    else
    style = GTK_TOOLBAR_ICONS;

    gtk_toolbar_set_style(toolbar, style);
    gtk_toolbar_set_tooltips(toolbar, (toolbar_flags & TOOLBAR_TOOLTIPS) != 0);

# ifdef HAVE_GTK2
    switch (tbis_flags)
    {
    case TBIS_TINY:        size = GTK_ICON_SIZE_MENU;        break;
    case TBIS_SMALL:    size = GTK_ICON_SIZE_SMALL_TOOLBAR;    break;
    case TBIS_MEDIUM:   size = GTK_ICON_SIZE_BUTTON;    break;
    case TBIS_LARGE:    size = GTK_ICON_SIZE_LARGE_TOOLBAR;    break;
    default:        size = GTK_ICON_SIZE_INVALID;    break;
    }
    oldsize = gtk_toolbar_get_icon_size(toolbar);

    if (size == GTK_ICON_SIZE_INVALID)
    {
    /* Let global user preferences decide the icon size. */
    gtk_toolbar_unset_icon_size(toolbar);
    size = gtk_toolbar_get_icon_size(toolbar);
    }
    if (size != oldsize)
    {
    gtk_container_foreach(GTK_CONTAINER(toolbar),
                  &icon_size_changed_foreach,
                  GINT_TO_POINTER((int)size));
    }
    gtk_toolbar_set_icon_size(toolbar, size);
# endif
}

#endif /* FEAT_TOOLBAR */

/*
 * Initialize the GUI.    Create all the windows, set up all the callbacks etc.
 * Returns OK for success, FAIL when the GUI can't be started.
 */
    int
gui_mch_init(void)
{
    GtkWidget *vbox;

#ifdef FEAT_GUI_GNOME
    /* Initialize the GNOME libraries.    gnome_program_init()/gnome_init()
     * exits on failure, but that's a non-issue because we already called
     * gtk_init_check() in gui_mch_init_check(). */
    if (using_gnome)
# ifdef HAVE_GTK2
    gnome_program_init(VIMPACKAGE, VIM_VERSION_SHORT,
               LIBGNOMEUI_MODULE, gui_argc, gui_argv, NULL);
# else
    gnome_init(VIMPACKAGE, VIM_VERSION_SHORT, gui_argc, gui_argv);
# endif
#endif
    vim_free(gui_argv);
    gui_argv = NULL;

#ifdef HAVE_GTK2
# if GLIB_CHECK_VERSION(2,1,3)
    /* Set the human-readable application name */
    g_set_application_name("Vim");
# endif
    /*
     * Force UTF-8 output no matter what the value of 'encoding' is.
     * did_set_string_option() in option.c prohibits changing 'termencoding'
     * to something else than UTF-8 if the GUI is in use.
     */
    set_option_value((char_u *)"termencoding", 0L, (char_u *)"utf-8", 0);

# ifdef FEAT_TOOLBAR
    gui_gtk_register_stock_icons();
# endif
    /* FIXME: Need to install the classic icons and a gtkrc.classic file.
     * The hard part is deciding install locations and the Makefile magic. */
# if 0
    gtk_rc_parse("gtkrc");
# endif
#endif

    /* Initialize values */
    gui.border_width = 2;
    gui.scrollbar_width = SB_DEFAULT_WIDTH;
    gui.scrollbar_height = SB_DEFAULT_WIDTH;
    gui.fgcolor = g_new0(GdkColor, 1);
    gui.bgcolor = g_new0(GdkColor, 1);

    /* Initialise atoms */
#ifdef FEAT_MBYTE
    utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
#endif
#ifndef HAVE_GTK2
    compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
    text_atom = gdk_atom_intern("TEXT", FALSE);
#endif

    /* Set default foreground and background colors. */
    gui.norm_pixel = gui.def_norm_pixel;
    gui.back_pixel = gui.def_back_pixel;

    if (gtk_socket_id != 0)
    {
    GtkWidget *plug;

    /* Use GtkSocket from another app. */
#ifdef HAVE_GTK_MULTIHEAD
    plug = gtk_plug_new_for_display(gdk_display_get_default(),
                    gtk_socket_id);
#else
    plug = gtk_plug_new(gtk_socket_id);
#endif
    if (plug != NULL && GTK_PLUG(plug)->socket_window != NULL)
    {
        gui.mainwin = plug;
    }
    else
    {
        g_warning("Connection to GTK+ socket (ID %u) failed",
              (unsigned int)gtk_socket_id);
        /* Pretend we never wanted it if it failed (get own window) */
        gtk_socket_id = 0;
    }
    }

    if (gtk_socket_id == 0)
    {
#ifdef FEAT_GUI_GNOME
    if (using_gnome)
    {
        gui.mainwin = gnome_app_new("Vim", NULL);
# ifdef USE_XSMP
        /* Use the GNOME save-yourself functionality now. */
        xsmp_close();
# endif
    }
    else
#endif
        gui.mainwin = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    }

    gtk_widget_set_name(gui.mainwin, "vim-main-window");

#ifdef HAVE_GTK2
    /* Create the PangoContext used for drawing all text. */
    gui.text_context = gtk_widget_create_pango_context(gui.mainwin);
    pango_context_set_base_dir(gui.text_context, PANGO_DIRECTION_LTR);
#endif

#ifndef HAVE_GTK2
    gtk_window_set_policy(GTK_WINDOW(gui.mainwin), TRUE, TRUE, TRUE);
#endif
    gtk_container_border_width(GTK_CONTAINER(gui.mainwin), 0);
    gtk_widget_add_events(gui.mainwin, GDK_VISIBILITY_NOTIFY_MASK);

    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "delete_event",
               GTK_SIGNAL_FUNC(&delete_event_cb), NULL);

    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "realize",
               GTK_SIGNAL_FUNC(&mainwin_realize), NULL);
#ifdef HAVE_GTK_MULTIHEAD
    g_signal_connect(G_OBJECT(gui.mainwin), "screen_changed",
             G_CALLBACK(&mainwin_screen_changed_cb), NULL);
#endif
#ifdef HAVE_GTK2
    gui.accel_group = gtk_accel_group_new();
    gtk_window_add_accel_group(GTK_WINDOW(gui.mainwin), gui.accel_group);
#else
    gui.accel_group = gtk_accel_group_get_default();
#endif

    vbox = gtk_vbox_new(FALSE, 0);

#ifdef FEAT_GUI_GNOME
    if (using_gnome)
    {
# if defined(HAVE_GTK2) && defined(FEAT_MENU)
    /* automagically restore menubar/toolbar placement */
    gnome_app_enable_layout_config(GNOME_APP(gui.mainwin), TRUE);
# endif
    gnome_app_set_contents(GNOME_APP(gui.mainwin), vbox);
    }
    else
#endif
    {
    gtk_container_add(GTK_CONTAINER(gui.mainwin), vbox);
    gtk_widget_show(vbox);
    }

#ifdef FEAT_MENU
    /*
     * Create the menubar and handle
     */
    gui.menubar = gtk_menu_bar_new();
    gtk_widget_set_name(gui.menubar, "vim-menubar");

# ifdef FEAT_GUI_GNOME
    if (using_gnome)
    {
#  ifdef HAVE_GTK2
    BonoboDockItem *dockitem;

    gnome_app_set_menus(GNOME_APP(gui.mainwin), GTK_MENU_BAR(gui.menubar));
    dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin),
                           GNOME_APP_MENUBAR_NAME);
    gui.menubar_h = GTK_WIDGET(dockitem);
#  else
    gui.menubar_h = gnome_dock_item_new("VimMainMenu",
                        GNOME_DOCK_ITEM_BEH_EXCLUSIVE |
                        GNOME_DOCK_ITEM_BEH_NEVER_VERTICAL);
    gtk_container_add(GTK_CONTAINER(gui.menubar_h), gui.menubar);

    gnome_dock_add_item(GNOME_DOCK(GNOME_APP(gui.mainwin)->dock),
                GNOME_DOCK_ITEM(gui.menubar_h),
                GNOME_DOCK_TOP, /* placement */
                1,    /* band_num */
                0,    /* band_position */
                0,    /* offset */
                TRUE);
    gtk_widget_show(gui.menubar);
#  endif
    }
    else
# endif    /* FEAT_GUI_GNOME */
    {
    if (vim_strchr(p_go, GO_MENUS) != NULL)
        gtk_widget_show(gui.menubar);
    gtk_box_pack_start(GTK_BOX(vbox), gui.menubar, FALSE, FALSE, 0);
    }
#endif    /* FEAT_MENU */

#ifdef FEAT_TOOLBAR
    /*
     * Create the toolbar and handle
     */
# ifdef HAVE_GTK2
    /* some aesthetics on the toolbar */
    gtk_rc_parse_string(
        "style \"vim-toolbar-style\" {\n"
        "  GtkToolbar::button_relief = GTK_RELIEF_NONE\n"
        "}\n"
        "widget \"*.vim-toolbar\" style \"vim-toolbar-style\"\n");
    gui.toolbar = gtk_toolbar_new();
    gtk_widget_set_name(gui.toolbar, "vim-toolbar");
# else
    gui.toolbar = gtk_toolbar_new(GTK_ORIENTATION_HORIZONTAL,
                  GTK_TOOLBAR_ICONS);
    gtk_toolbar_set_button_relief(GTK_TOOLBAR(gui.toolbar), GTK_RELIEF_NONE);
# endif
    set_toolbar_style(GTK_TOOLBAR(gui.toolbar));

# ifdef FEAT_GUI_GNOME
    if (using_gnome)
    {
#  ifdef HAVE_GTK2
    BonoboDockItem *dockitem;

    gnome_app_set_toolbar(GNOME_APP(gui.mainwin), GTK_TOOLBAR(gui.toolbar));
    dockitem = gnome_app_get_dock_item_by_name(GNOME_APP(gui.mainwin),
                           GNOME_APP_TOOLBAR_NAME);
    gui.toolbar_h = GTK_WIDGET(dockitem);
    gtk_container_set_border_width(GTK_CONTAINER(gui.toolbar), 0);
#  else
    GtkWidget *dockitem;

    dockitem = gnome_dock_item_new("VimToolBar",
                       GNOME_DOCK_ITEM_BEH_EXCLUSIVE);
    gtk_container_add(GTK_CONTAINER(dockitem), GTK_WIDGET(gui.toolbar));
    gui.toolbar_h = dockitem;

    gnome_dock_add_item(GNOME_DOCK(GNOME_APP(gui.mainwin)->dock),
                GNOME_DOCK_ITEM(dockitem),
                GNOME_DOCK_TOP,    /* placement */
                1,    /* band_num */
                1,    /* band_position */
                0,    /* offset */
                TRUE);
    gtk_container_border_width(GTK_CONTAINER(gui.toolbar), 2);
    gtk_widget_show(gui.toolbar);
#  endif
    }
    else
# endif    /* FEAT_GUI_GNOME */
    {
# ifndef HAVE_GTK2
    gtk_container_border_width(GTK_CONTAINER(gui.toolbar), 1);
# endif
    if (vim_strchr(p_go, GO_TOOLBAR) != NULL
        && (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS)))
        gtk_widget_show(gui.toolbar);
    gtk_box_pack_start(GTK_BOX(vbox), gui.toolbar, FALSE, FALSE, 0);
    }
#endif /* FEAT_TOOLBAR */

    gui.formwin = gtk_form_new();
    gtk_container_border_width(GTK_CONTAINER(gui.formwin), 0);
    gtk_widget_set_events(gui.formwin, GDK_EXPOSURE_MASK);

    gui.drawarea = gtk_drawing_area_new();

    /* Determine which events we will filter. */
    gtk_widget_set_events(gui.drawarea,
              GDK_EXPOSURE_MASK |
              GDK_ENTER_NOTIFY_MASK |
              GDK_LEAVE_NOTIFY_MASK |
              GDK_BUTTON_PRESS_MASK |
              GDK_BUTTON_RELEASE_MASK |
#ifdef HAVE_GTK2
              GDK_SCROLL_MASK |
#endif
              GDK_KEY_PRESS_MASK |
              GDK_KEY_RELEASE_MASK |
              GDK_POINTER_MOTION_MASK |
              GDK_POINTER_MOTION_HINT_MASK);

    gtk_widget_show(gui.drawarea);
    gtk_form_put(GTK_FORM(gui.formwin), gui.drawarea, 0, 0);
    gtk_widget_show(gui.formwin);
    gtk_box_pack_start(GTK_BOX(vbox), gui.formwin, TRUE, TRUE, 0);

    /* For GtkSockets, key-presses must go to the focus widget (drawarea)
     * and not the window. */
    gtk_signal_connect((gtk_socket_id == 0) ? GTK_OBJECT(gui.mainwin)
                        : GTK_OBJECT(gui.drawarea),
               "key_press_event",
               GTK_SIGNAL_FUNC(key_press_event), NULL);
#if defined(FEAT_XIM) && defined(HAVE_GTK2)
    /* Also forward key release events for the benefit of GTK+ 2 input
     * modules.  Try CTRL-SHIFT-xdigits to enter a Unicode code point. */
    g_signal_connect((gtk_socket_id == 0) ? G_OBJECT(gui.mainwin)
                      : G_OBJECT(gui.drawarea),
             "key_release_event",
             G_CALLBACK(&key_release_event), NULL);
#endif
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "realize",
               GTK_SIGNAL_FUNC(drawarea_realize_cb), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "unrealize",
               GTK_SIGNAL_FUNC(drawarea_unrealize_cb), NULL);

    gtk_signal_connect_after(GTK_OBJECT(gui.drawarea), "style_set",
                 GTK_SIGNAL_FUNC(&drawarea_style_set_cb), NULL);

    gui.visibility = GDK_VISIBILITY_UNOBSCURED;

#if !(defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION))
    wm_protocols_atom = gdk_atom_intern("WM_PROTOCOLS", FALSE);
    save_yourself_atom = gdk_atom_intern("WM_SAVE_YOURSELF", FALSE);
#endif

    if (gtk_socket_id != 0)
    /* make sure keybord input can go to the drawarea */
    GTK_WIDGET_SET_FLAGS(gui.drawarea, GTK_CAN_FOCUS);

    /*
     * Set clipboard specific atoms
     */
    vim_atom = gdk_atom_intern(VIM_ATOM_NAME, FALSE);
    clip_star.gtk_sel_atom = GDK_SELECTION_PRIMARY;
    clip_plus.gtk_sel_atom = gdk_atom_intern("CLIPBOARD", FALSE);

    /*
     * Start out by adding the configured border width into the border offset.
     */
    gui.border_offset = gui.border_width;

    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "visibility_notify_event",
               GTK_SIGNAL_FUNC(visibility_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "expose_event",
               GTK_SIGNAL_FUNC(expose_event), NULL);

    /*
     * Only install these enter/leave callbacks when 'p' in 'guioptions'.
     * Only needed for some window managers.
     */
    if (vim_strchr(p_go, GO_POINTER) != NULL)
    {
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "leave_notify_event",
               GTK_SIGNAL_FUNC(leave_notify_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "enter_notify_event",
               GTK_SIGNAL_FUNC(enter_notify_event), NULL);
    }

    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "focus_out_event",
               GTK_SIGNAL_FUNC(focus_out_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "focus_in_event",
               GTK_SIGNAL_FUNC(focus_in_event), NULL);

    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "motion_notify_event",
               GTK_SIGNAL_FUNC(motion_notify_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "button_press_event",
               GTK_SIGNAL_FUNC(button_press_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "button_release_event",
               GTK_SIGNAL_FUNC(button_release_event), NULL);
#ifdef HAVE_GTK2
    g_signal_connect(G_OBJECT(gui.drawarea), "scroll_event",
             G_CALLBACK(&scroll_event), NULL);
#endif

    /*
     * Add selection handler functions.
     */
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_clear_event",
               GTK_SIGNAL_FUNC(selection_clear_event), NULL);
    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_received",
               GTK_SIGNAL_FUNC(selection_received_cb), NULL);

    /*
     * Add selection targets for PRIMARY and CLIPBOARD selections.
     */
    gtk_selection_add_targets(gui.drawarea,
                  (GdkAtom)GDK_SELECTION_PRIMARY,
                  selection_targets, N_SELECTION_TARGETS);
    gtk_selection_add_targets(gui.drawarea,
                  (GdkAtom)clip_plus.gtk_sel_atom,
                  selection_targets, N_SELECTION_TARGETS);

    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "selection_get",
               GTK_SIGNAL_FUNC(selection_get_cb), NULL);

    /* Pretend we don't have input focus, we will get an event if we do. */
    gui.in_focus = FALSE;

#ifdef FEAT_NETBEANS_INTG
    if (usingNetbeans)
    netbeans_gtk_connect();
# endif

    return OK;
}

#if (defined(FEAT_GUI_GNOME) && defined(FEAT_SESSION)) || defined(PROTO)
/*
 * This is called from gui_start() after a fork() has been done.
 * We have to tell the session manager our new PID.
 */
    void
gui_mch_forked(void)
{
    if (using_gnome)
    {
    GnomeClient *client;

    client = gnome_master_client();

    if (client != NULL)
        gnome_client_set_process_id(client, getpid());
    }
}
#endif /* FEAT_GUI_GNOME && FEAT_SESSION */

/*
 * Called when the foreground or background color has been changed.
 * This used to change the graphics contexts directly but we are
 * currently manipulating them where desired.
 */
    void
gui_mch_new_colors(void)
{
    if (gui.drawarea != NULL && gui.drawarea->window != NULL)
    {
    GdkColor color = { 0, 0, 0, 0 };

    color.pixel = gui.back_pixel;
    gdk_window_set_background(gui.drawarea->window, &color);
    }
}

#if defined(FEAT_MENU) || defined(FEAT_TOOLBAR)
    static int
get_item_dimensions(GtkWidget *widget, GtkOrientation orientation)
{
    GtkOrientation item_orientation = GTK_ORIENTATION_HORIZONTAL;

#ifdef FEAT_GUI_GNOME
    if (using_gnome && widget != NULL)
    {
# ifdef HAVE_GTK2
    BonoboDockItem *dockitem;

    widget     = gtk_widget_get_parent(widget);
    dockitem = BONOBO_DOCK_ITEM(widget);

    if (dockitem == NULL || dockitem->is_floating)
        return 0;
    item_orientation = bonobo_dock_item_get_orientation(dockitem);
# else
    GnomeDockItem *dockitem;

    widget     = widget->parent;
    dockitem = GNOME_DOCK_ITEM(widget);

    if (dockitem == NULL || dockitem->is_floating)
        return 0;
    item_orientation = gnome_dock_item_get_orientation(dockitem);
# endif
    }
#endif
    if (widget != NULL
        && item_orientation == orientation
        && GTK_WIDGET_REALIZED(widget)
        && GTK_WIDGET_VISIBLE(widget))
    {
    if (orientation == GTK_ORIENTATION_HORIZONTAL)
        return widget->allocation.height;
    else
        return widget->allocation.width;
    }
    return 0;
}
#endif

    static int
get_menu_tool_width(void)
{
    int width = 0;

#ifdef FEAT_GUI_GNOME /* these are never vertical without GNOME */
# ifdef FEAT_MENU
    width += get_item_dimensions(gui.menubar, GTK_ORIENTATION_VERTICAL);
# endif
# ifdef FEAT_TOOLBAR
    width += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_VERTICAL);
# endif
#endif

    return width;
}

    static int
get_menu_tool_height(void)
{
    int height = 0;

#ifdef FEAT_MENU
    height += get_item_dimensions(gui.menubar, GTK_ORIENTATION_HORIZONTAL);
#endif
#ifdef FEAT_TOOLBAR
    height += get_item_dimensions(gui.toolbar, GTK_ORIENTATION_HORIZONTAL);
#endif

    return height;
}

    static void
update_window_manager_hints(void)
{
    static int old_width  = 0;
    static int old_height = 0;
    static int old_char_width  = 0;
    static int old_char_height = 0;

    int width;
    int height;

    /* This also needs to be done when the main window isn't there yet,
     * otherwise the hints don't work. */
    width  = gui_get_base_width();
    height = gui_get_base_height();
# ifdef HAVE_GTK2
    width  += get_menu_tool_width();
    height += get_menu_tool_height();
# endif

    /* Avoid an expose event when the size didn't change. */
    if (width != old_width
        || height != old_height
        || gui.char_width != old_char_width
        || gui.char_height != old_char_height)
    {
    GdkGeometry    geometry;
    GdkWindowHints    geometry_mask;

    geometry.width_inc   = gui.char_width;
    geometry.height_inc  = gui.char_height;
    geometry.base_width  = width;
    geometry.base_height = height;
    geometry.min_width   = width  + MIN_COLUMNS * gui.char_width;
    geometry.min_height  = height + MIN_LINES   * gui.char_height;
    geometry_mask         = GDK_HINT_BASE_SIZE|GDK_HINT_RESIZE_INC
                   |GDK_HINT_MIN_SIZE;
# ifdef HAVE_GTK2
    /* Using gui.formwin as geometry widget doesn't work as expected
     * with GTK+ 2 -- dunno why.  Presumably all the resizing hacks
     * in Vim confuse GTK+. */
    gtk_window_set_geometry_hints(GTK_WINDOW(gui.mainwin), gui.mainwin,
                      &geometry, geometry_mask);
# else
    gtk_window_set_geometry_hints(GTK_WINDOW(gui.mainwin), gui.formwin,
                      &geometry, geometry_mask);
# endif
    old_width  = width;
    old_height = height;
    old_char_width    = gui.char_width;
    old_char_height = gui.char_height;
    }
}

/*
 * This signal informs us about the need to rearrange our sub-widgets.
 */
/*ARGSUSED*/
    static gint
form_configure_event(GtkWidget *widget, GdkEventConfigure *event,
             gpointer data)
{
    gtk_form_freeze(GTK_FORM(gui.formwin));
    gui_resize_shell(event->width, event->height);
    gtk_form_thaw(GTK_FORM(gui.formwin));

    return TRUE;
}

/*
 * Function called when window already closed.
 * We can't do much more here than to trying to preserve what had been done,
 * since the window is already inevitably going away.
 */
/*ARGSUSED0*/
    static void
mainwin_destroy_cb(GtkObject *object, gpointer data)
{
    /* Don't write messages to the GUI anymore */
    full_screen = FALSE;

    gui.mainwin  = NULL;
    gui.drawarea = NULL;

    if (!exiting) /* only do anything if the destroy was unexpected */
    {
    STRNCPY(IObuff, _("Vim: Main window unexpectedly destroyed\n"),
        IOSIZE);
    IObuff[IOSIZE - 1] = NUL;
    preserve_exit();
    }
}

/*
 * Open the GUI window which was created by a call to gui_mch_init().
 */
    int
gui_mch_open(void)
{
    guicolor_T fg_pixel = INVALCOLOR;
    guicolor_T bg_pixel = INVALCOLOR;

#ifdef HAVE_GTK2
    /*
     * Allow setting a window role on the command line, or invent one
     * if none was specified.  This is mainly useful for GNOME session
     * support; allowing the WM to restore window placement.
     */
    if (role_argument != NULL)
    {
    gtk_window_set_role(GTK_WINDOW(gui.mainwin), role_argument);
    }
    else
    {
    char *role;

    /* Invent a unique-enough ID string for the role */
    role = g_strdup_printf("vim-%u-%u-%u",
                   (unsigned)mch_get_pid(),
                   (unsigned)g_random_int(),
                   (unsigned)time(NULL));

    gtk_window_set_role(GTK_WINDOW(gui.mainwin), role);
    g_free(role);
    }
#endif

    if (gui_win_x != -1 && gui_win_y != -1)
#ifdef HAVE_GTK2
    gtk_window_move(GTK_WINDOW(gui.mainwin), gui_win_x, gui_win_y);
#else
    gtk_widget_set_uposition(gui.mainwin, gui_win_x, gui_win_y);
#endif

    /* Determine user specified geometry, if present. */
    if (gui.geom != NULL)
    {
    int        mask;
    unsigned int    w, h;
    int        x = 0;
    int        y = 0;

    mask = XParseGeometry((char *)gui.geom, &x, &y, &w, &h);

    if (mask & WidthValue)
        Columns = w;
    if (mask & HeightValue)
        Rows = h;
    if (mask & (XValue | YValue))
#ifdef HAVE_GTK2
        gtk_window_move(GTK_WINDOW(gui.mainwin), x, y);
#else
        gtk_widget_set_uposition(gui.mainwin, x, y);
#endif
    vim_free(gui.geom);
    gui.geom = NULL;
    }

    gtk_form_set_size(GTK_FORM(gui.formwin),
        (guint)(gui_get_base_width() + Columns * gui.char_width),
        (guint)(gui_get_base_height() + Rows * gui.char_height));
    update_window_manager_hints();

    if (foreground_argument != NULL)
    fg_pixel = gui_get_color((char_u *)foreground_argument);
    if (fg_pixel == INVALCOLOR)
    fg_pixel = gui_get_color((char_u *)"Black");

    if (background_argument != NULL)
    bg_pixel = gui_get_color((char_u *)background_argument);
    if (bg_pixel == INVALCOLOR)
    bg_pixel = gui_get_color((char_u *)"White");

    if (found_reverse_arg)
    {
    gui.def_norm_pixel = bg_pixel;
    gui.def_back_pixel = fg_pixel;
    }
    else
    {
    gui.def_norm_pixel = fg_pixel;
    gui.def_back_pixel = bg_pixel;
    }

    /* Get the colors from the "Normal" and "Menu" group (set in syntax.c or
     * in a vimrc file) */
    set_normal_colors();

    /* Check that none of the colors are the same as the background color */
    gui_check_colors();

    /* Get the colors for the highlight groups (gui_check_colors() might have
     * changed them). */
    highlight_gui_started();    /* re-init colors and fonts */

    gtk_signal_connect(GTK_OBJECT(gui.mainwin), "destroy",
               GTK_SIGNAL_FUNC(mainwin_destroy_cb), NULL);

#ifdef FEAT_HANGULIN
    hangul_keyboard_set();
#endif

    /*
     * Notify the fixed area about the need to resize the contents of the
     * gui.formwin, which we use for random positioning of the included
     * components.
     *
     * We connect this signal deferred finally after anything is in place,
     * since this is intended to handle resizements coming from the window
     * manager upon us and should not interfere with what VIM is requesting
     * upon startup.
     */
    gtk_signal_connect(GTK_OBJECT(gui.formwin), "configure_event",
               GTK_SIGNAL_FUNC(form_configure_event), NULL);

#ifdef FEAT_DND
    /*
     * Set up for receiving DND items.
     */
    gtk_drag_dest_set(gui.drawarea,
              GTK_DEST_DEFAULT_ALL,
              dnd_targets, N_DND_TARGETS,
              GDK_ACTION_COPY);

    gtk_signal_connect(GTK_OBJECT(gui.drawarea), "drag_data_received",
               GTK_SIGNAL_FUNC(drag_data_received_cb), NULL);
#endif

#ifdef HAVE_GTK2
    /* With GTK+ 2, we need to iconify the window before calling show()
     * to avoid mapping the window for a short time.  This is just as one
     * would expect it to work, but it's different in GTK+ 1.  The funny
     * thing is that iconifying after show() _does_ work with GTK+ 1.
     * (BTW doing this in the "realize" handler makes no difference.) */
    if (found_iconic_arg && gtk_socket_id == 0)
        gui_mch_iconify();
#endif

    {
#if defined(FEAT_GUI_GNOME) && defined(HAVE_GTK2) && defined(FEAT_MENU)
    unsigned long menu_handler = 0;
# ifdef FEAT_TOOLBAR
    unsigned long tool_handler = 0;
# endif
    /*
     * Urgh hackish :/  For some reason BonoboDockLayout always forces a
     * show when restoring the saved layout configuration.    We can't just
     * hide the widgets again after gtk_widget_show(gui.mainwin) since it's
     * a toplevel window and thus will be realized immediately.  Instead,
     * connect signal handlers to hide the widgets just after they've been
     * marked visible, but before the main window is realized.
     */
    if (using_gnome && vim_strchr(p_go, GO_MENUS) == NULL)
        menu_handler = g_signal_connect_after(gui.menubar_h, "show",
                          G_CALLBACK(>k_widget_hide),
                          NULL);
# ifdef FEAT_TOOLBAR
    if (using_gnome && vim_strchr(p_go, GO_TOOLBAR) == NULL
        && (toolbar_flags & (TOOLBAR_TEXT | TOOLBAR_ICONS)))
        tool_handler = g_signal_connect_after(gui.toolbar_h, "show",
                          G_CALLBACK(>k_widget_hide),
                          NULL);
# endif
#endif
    gtk_widget_show(gui.mainwin);

#if defined(FEAT_GUI_GNOME) && defined(HAVE_GTK2) && defined(FEAT_MENU)
    if (menu_handler != 0)
        g_signal_handler_disconnect(gui.menubar_h, menu_handler);
# ifdef FEAT_TOOLBAR
    if (tool_handler != 0)
        g_signal_handler_disconnect(gui.toolbar_h, tool_handler);
# endif
#endif
    }

#ifndef HAVE_GTK2
    /* With GTK+ 1, we need to iconify the window after calling show().
     * See the comment above for details. */
    if (found_iconic_arg && gtk_socket_id == 0)
        gui_mch_iconify();
#endif

    return OK;
}


/*ARGSUSED0*/
    void
gui_mch_exit(int rc)
{
    if (gui.mainwin != NULL)
    gtk_widget_destroy(gui.mainwin);

    if (gtk_main_level() > 0)
    gtk_main_quit();
}

/*
 * Get the position of the top left corner of the window.
 */
    int
gui_mch_get_winpos(int *x, int *y)
{
#ifdef HAVE_GTK2
    gtk_window_get_position(GTK_WINDOW(gui.mainwin), x, y);
#else
    /* For some people this must be gdk_window_get_origin() for a correct
     * result.    Where is the documentation! */
    gdk_window_get_root_origin(gui.mainwin->window, x, y);
#endif
    return OK;
}

/*
 * Set the position of the top left corner of the window to the given
 * coordinates.
 */
    void
gui_mch_set_winpos(int x, int y)
{
#ifdef HAVE_GTK2
    gtk_window_move(GTK_WINDOW(gui.mainwin), x, y);
#else
    gdk_window_move(gui.mainwin->window, x, y);
#endif
}

#ifdef HAVE_GTK2
static int resize_idle_installed = FALSE;
/*
 * Idle handler to force resize.  Used by gui_mch_set_shellsize() to ensure
 * the shell size doesn't exceed the window size, i.e. if the window manager
 * ignored our size request.  Usually this happens if the window is maximized.
 *
 * FIXME: It'd be nice if we could find a little more orthodox solution.
 * See also the rant below in gui_mch_set_shellsize().
 */
/*ARGSUSED0*/
    static gboolean
force_shell_resize_idle(gpointer data)
{
    if (gui.mainwin != NULL
        && GTK_WIDGET_REALIZED(gui.mainwin)
        && GTK_WIDGET_VISIBLE(gui.mainwin))
    {
    int width;
    int height;

    gtk_window_get_size(GTK_WINDOW(gui.mainwin), &width, &height);

    width  -= get_menu_tool_width();
    height -= get_menu_tool_height();

    gui_resize_shell(width, height);
    }

    resize_idle_installed = FALSE;
    return FALSE; /* don't call me again */
}
#endif /* HAVE_GTK2 */

/*
 * Set the windows size.
 */
/*ARGSUSED2*/
    void
gui_mch_set_shellsize(int width, int height,
              int min_width,  int min_height,
              int base_width, int base_height)
{
#ifndef HAVE_GTK2
    /* Hack: When the form already is at the desired size, the window might
     * have been resized with the mouse.  Force a resize by setting a
     * different size first. */
    if (GTK_FORM(gui.formwin)->width == width
        && GTK_FORM(gui.formwin)->height == height)
    {
    gtk_form_set_size(GTK_FORM(gui.formwin), width + 1, height + 1);
    gui_mch_update();
    }
    gtk_form_set_size(GTK_FORM(gui.formwin), width, height);
#endif

    /* give GTK+ a chance to put all widget's into place */
    gui_mch_update();

    /* this will cause the proper resizement to happen too */
    update_window_manager_hints();

#ifdef HAVE_GTK2
    /* With GTK+ 2, changing the size of the form widget doesn't resize
     * the window.  So lets do it the other way around and resize the
     * main window instead. */
    width  += get_menu_tool_width();
    height += get_menu_tool_height();

    gtk_window_resize(GTK_WINDOW(gui.mainwin), width, height);

    if (!resize_idle_installed)
    {
    g_idle_add_full(GDK_PRIORITY_EVENTS + 10,
            &force_shell_resize_idle, NULL, NULL);
    resize_idle_installed = TRUE;
    }
    /*
     * Wait until all events are processed to prevent a crash because the
     * real size of the drawing area doesn't reflect Vim's internal ideas.
     *
     * This is obviously a hack and only necessary because the entire GUI
     * code of Vim is a hack as well.  The root cause of the problem is that
     * Vim tries really hard to ignore the asynchronous nature of X.  The
     * whole *concept* of the GUI code is badly broken beyond repair.  It's
     * almost a philosophical issue: instead of trying to control everything
     * Vim should rather try to cooperate for a change.
     */
    gui_mch_update();
#endif
}


/*
 * The screen size is used to make sure the initial window doesn't get bigger
 * than the screen.  This subtracts some room for menubar, toolbar and window
 * decorations.
 */
    void
gui_mch_get_screen_dimensions(int *screen_w, int *screen_h)
{
#ifdef HAVE_GTK_MULTIHEAD
    GdkScreen* screen;

    if (gui.mainwin != NULL && gtk_widget_has_screen(gui.mainwin))
    screen = gtk_widget_get_screen(gui.mainwin);
    else
    screen = gdk_screen_get_default();

    *screen_w = gdk_screen_get_width(screen);
    *screen_h = gdk_screen_get_height(screen) - p_ghr;
#else
    *screen_w = gdk_screen_width();
    /* Subtract 'guiheadroom' from the height to allow some room for the
     * window manager (task list and window title bar). */
    *screen_h = gdk_screen_height() - p_ghr;
#endif

    /*
     * FIXME: dirty trick: Because the gui_get_base_height() doesn't include
     * the toolbar and menubar for GTK, we subtract them from the screen
     * hight, so that the window size can be made to fit on the screen.
     * This should be completely changed later.
     */
    *screen_w -= get_menu_tool_width();
    *screen_h -= get_menu_tool_height();
}

#if defined(FEAT_TITLE) || defined(PROTO)
/*ARGSUSED*/
    void
gui_mch_settitle(char_u *title, char_u *icon)
{
# ifdef HAVE_GTK2
    if (title != NULL && output_conv.vc_type != CONV_NONE)
    title = string_convert(&output_conv, title, NULL);
# endif

    gtk_window_set_title(GTK_WINDOW(gui.mainwin), (const char *)title);

# ifdef HAVE_GTK2
    if (output_conv.vc_type != CONV_NONE)
    vim_free(title);
# endif
}
#endif /* FEAT_TITLE */

#if defined(FEAT_MENU) || defined(PROTO)
    void
gui_mch_enable_menu(int showit)
{
    GtkWidget *widget;

# ifdef FEAT_GUI_GNOME
    if (using_gnome)
    widget = gui.menubar_h;
    else
# endif
    widget = gui.menubar;

    if (!showit != !GTK_WIDGET_VISIBLE(widget))
    {
    if (showit)
        gtk_widget_show(widget);
    else
        gtk_widget_hide(widget);

    update_window_manager_hints();
    }
}
#endif /* FEAT_MENU */

#if defined(FEAT_TOOLBAR) || defined(PROTO)
    void
gui_mch_show_toolbar(int showit)
{
    GtkWidget *widget;

    if (gui.toolbar == NULL)
    return;

# ifdef FEAT_GUI_GNOME
    if (using_gnome)
    widget = gui.toolbar_h;
    else
# endif
    widget = gui.toolbar;

    if (showit)
    set_toolbar_style(GTK_TOOLBAR(gui.toolbar));

    if (!showit != !GTK_WIDGET_VISIBLE(widget))
    {
    if (showit)
        gtk_widget_show(widget);
    else
        gtk_widget_hide(widget);

    update_window_manager_hints();
    }
}
#endif /* FEAT_TOOLBAR */

#ifndef HAVE_GTK2
/*
 * Get a font structure for highlighting.
 * "cbdata" is a pointer to the global gui structure.
 */
/*ARGSUSED*/
    static void
font_sel_ok(GtkWidget *wgt, gpointer cbdata)
{
    gui_T *vw = (gui_T *)cbdata;
    GtkFontSelectionDialog *fs = (GtkFontSelectionDialog *)vw->fontdlg;

    if (vw->fontname)
    g_free(vw->fontname);

    vw->fontname = (char_u *)gtk_font_selection_dialog_get_font_name(fs);
    gtk_widget_hide(vw->fontdlg);
    if (gtk_main_level() > 0)
    gtk_main_quit();
}

/*ARGSUSED*/
    static void
font_sel_cancel(GtkWidget *wgt, gpointer cbdata)
{
    gui_T *vw = (gui_T *)cbdata;

    gtk_widget_hide(vw->fontdlg);
    if (gtk_main_level() > 0)
    gtk_main_quit();
}

/*ARGSUSED*/
    static void
font_sel_destroy(GtkWidget *wgt, gpointer cbdata)
{
    gui_T *vw = (gui_T *)cbdata;

    vw->fontdlg = NULL;
    if (gtk_main_level() > 0)
    gtk_main_quit();
}
#endif /* !HAVE_GTK2 */

#ifdef HAVE_GTK2
/*
 * Check if a given font is a CJK font. This is done in a very crude manner. It
 * just see if U+04E00 for zh and ja and U+AC00 for ko are covered in a given
 * font. Consequently, this function cannot  be used as a general purpose check
 * for CJK-ness for which fontconfig APIs should be used.  This is only used by
 * gui_mch_init_font() to deal with 'CJK fixed width fonts'.
 */
    static int
is_cjk_font(PangoFontDescription *font_desc)
{
    static const char * const cjk_langs[] =
    {"zh_CN", "zh_TW", "zh_HK", "ja", "ko"};

    PangoFont    *font;
    unsigned    i;
    int        is_cjk = FALSE;

    font = pango_context_load_font(gui.text_context, font_desc);

    if (font == NULL)
    return FALSE;

    for (i = 0; !is_cjk && i < G_N_ELEMENTS(cjk_langs); ++i)
    {
    PangoCoverage    *coverage;
    gunichar    uc;

    coverage = pango_font_get_coverage(
        font, pango_language_from_string(cjk_langs[i]));

    if (coverage != NULL)
    {
        uc = (cjk_langs[i][0] == 'k') ? 0xAC00 : 0x4E00;
        is_cjk = (pango_coverage_get(coverage, uc) == PANGO_COVERAGE_EXACT);
        pango_coverage_unref(coverage);
    }
    }

    g_object_unref(font);

    return is_cjk;
}
#endif /* HAVE_GTK2 */

    int
gui_mch_adjust_charsize(void)
{
#ifdef HAVE_GTK2
    PangoFontMetrics    *metrics;
    int            ascent;
    int            descent;

    metrics = pango_context_get_metrics(gui.text_context, gui.norm_font,
                pango_context_get_language(gui.text_context));
    ascent  = pango_font_metrics_get_ascent(metrics);
    descent = pango_font_metrics_get_descent(metrics);

    pango_font_metrics_unref(metrics);

    gui.char_height = (ascent + descent + PANGO_SCALE - 1) / PANGO_SCALE
              + p_linespace;
    gui.char_ascent = PANGO_PIXELS(ascent + p_linespace * PANGO_SCALE / 2);

#else /* !HAVE_GTK2 */

    gui.char_height = gui.current_font->ascent + gui.current_font->descent
              + p_linespace;
    gui.char_ascent = gui.current_font->ascent + p_linespace / 2;

#endif /* !HAVE_GTK2 */

    /* A not-positive value of char_height may crash Vim.  Only happens
     * if 'linespace' is negative (which does make sense sometimes). */
    gui.char_ascent = MAX(gui.char_ascent, 0);
    gui.char_height = MAX(gui.char_height, gui.char_ascent + 1);

    return OK;
}

#if defined(FEAT_XFONTSET) || defined(PROTO)
/*
 * Try to load the requested fontset.
 */
/*ARGSUSED2*/
    GuiFontset
gui_mch_get_fontset(char_u *name, int report_error, int fixed_width)
{
    GdkFont *font;

    if (!gui.in_use || name == NULL)
    return NOFONT;

    font = gdk_fontset_load((gchar *)name);

    if (font == NULL)
    {
    if (report_error)
        EMSG2(_(e_fontset), name);
    return NOFONT;
    }
    /* TODO: check if the font is fixed width. */

    /* reference this font as being in use */
    gdk_font_ref(font);

    return (GuiFontset)font;
}
#endif /* FEAT_XFONTSET */

#ifndef HAVE_GTK2
/*
 * Put up a font dialog and return the selected font name in allocated memory.
 * "oldval" is the previous value.
 * Return NULL when cancelled.
 */
    char_u *
gui_mch_font_dialog(char_u *oldval)
{
    char_u *fontname = NULL;

    if (!gui.fontdlg)
    {
    GtkFontSelectionDialog    *fsd = NULL;

    gui.fontdlg = gtk_font_selection_dialog_new(_("Font Selection"));
    fsd = GTK_FONT_SELECTION_DIALOG(gui.fontdlg);
    gtk_window_set_modal(GTK_WINDOW(gui.fontdlg), TRUE);
    gtk_window_set_transient_for(GTK_WINDOW(gui.fontdlg),
        GTK_WINDOW(gui.mainwin));
    gtk_signal_connect(GTK_OBJECT(gui.fontdlg), "destroy",
        GTK_SIGNAL_FUNC(font_sel_destroy), &gui);
    gtk_signal_connect(GTK_OBJECT(fsd->ok_button), "clicked",
        GTK_SIGNAL_FUNC(font_sel_ok), &gui);
    gtk_signal_connect(GTK_OBJECT(fsd->cancel_button), "clicked",
        GTK_SIGNAL_FUNC(font_sel_cancel), &gui);
    }

    if (oldval != NULL && *oldval != NUL)
    gtk_font_selection_dialog_set_font_name(
        GTK_FONT_SELECTION_DIALOG(gui.fontdlg), (char *)oldval);

    if (gui.fontname)
    {
    g_free(gui.fontname);
    gui.fontname = NULL;
    }
    gtk_window_position(GTK_WINDOW(gui.fontdlg), GTK_WIN_POS_MOUSE);
    gtk_widget_show(gui.fontdlg);
    {
    static gchar    *spacings[] = {"c", "m", NULL};

    /* In GTK 1.2.3 this must be after the gtk_widget_show() call,
     * otherwise everything is blocked for ten seconds. */
    gtk_font_selection_dialog_set_filter(
        GTK_FONT_SELECTION_DIALOG(gui.fontdlg),
        GTK_FONT_FILTER_BASE,
        GTK_FONT_ALL, NULL, NULL,
        NULL, NULL, spacings, NULL);
    }

    /* Wait for the font dialog to be closed. */
    while (gui.fontdlg && GTK_WIDGET_DRAWABLE(gui.fontdlg))
    gtk_main_iteration_do(TRUE);

    if (gui.fontname != NULL)
    {
    fontname = vim_strsave(gui.fontname);
    g_free(gui.fontname);
    gui.fontname = NULL;
    }
    return fontname;
}
#endif /* !HAVE_GTK2 */

#ifdef HAVE_GTK2
/*
 * Put up a font dialog and return the selected font name in allocated memory.
 * "oldval" is the previous value.  Return NULL when cancelled.
 * This should probably go into gui_gtk.c.  Hmm.
 * FIXME:
 * The GTK2 font selection dialog has no filtering API.  So we could either
 * a) implement our own (possibly copying the code from somewhere else) or
 * b) just live with it.
 */
    char_u *
gui_mch_font_dialog(char_u *oldval)
{
    GtkWidget    *dialog;
    int        response;
    char_u    *fontname = NULL;

    dialog = gtk_font_selection_dialog_new(NULL);

    gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(gui.mainwin));
    gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);

    if (oldval != NULL && oldval[0] != NUL)
    {
    if (output_conv.vc_type != CONV_NONE)
        oldval = string_convert(&output_conv, oldval, NULL);

    gtk_font_selection_dialog_set_font_name(
        GTK_FONT_SELECTION_DIALOG(dialog), (const char *)oldval);

    if (output_conv.vc_type != CONV_NONE)
        vim_free(oldval);
    }

    response = gtk_dialog_run(GTK_DIALOG(dialog));

    if (response == GTK_RESPONSE_OK)
    {
    char *name;

    name = gtk_font_selection_dialog_get_font_name(
                GTK_FONT_SELECTION_DIALOG(dialog));
    if (name != NULL)
    {
        if (input_conv.vc_type != CONV_NONE)
        fontname = string_convert(&input_conv, (char_u *)name, NULL);
        else
        fontname = vim_strsave((char_u *)name);
        g_free(name);
    }
    }

    if (response != GTK_RESPONSE_NONE)
    gtk_widget_destroy(dialog);

    return fontname;
}

/*
 * Some monospace fonts don't support a bold weight, and fall back
 * silently to the regular weight.  But this is no good since our text
 * drawing function can emulate bold by overstriking.  So let's try
 * to detect whether bold weight is actually available and emulate it
 * otherwise.
 *
 * Note that we don't need to check for italic style since Xft can
 * emulate italic on its own, provided you have a proper fontconfig
 * setup.  We wouldn't be able to emulate it in Vim anyway.
 */
    static void
get_styled_font_variants(void)
{
    PangoFontDescription    *bold_font_desc;
    PangoFont            *plain_font;
    PangoFont            *bold_font;

    gui.font_can_bold = FALSE;

    plain_font = pango_context_load_font(gui.text_context, gui.norm_font);

    if (plain_font == NULL)
    return;

    bold_font_desc = pango_font_description_copy_static(gui.norm_font);
    pango_font_description_set_weight(bold_font_desc, PANGO_WEIGHT_BOLD);

    bold_font = pango_context_load_font(gui.text_context, bold_font_desc);
    /*
     * The comparison relies on the unique handle nature of a PangoFont*,
     * i.e. it's assumed that a different PangoFont* won't refer to the
     * same font.  Seems to work, and failing here isn't critical anyway.
     */
    if (bold_font != NULL)
    {
    gui.font_can_bold = (bold_font != plain_font);
    g_object_unref(bold_font);
    }

    pango_font_description_free(bold_font_desc);
    g_object_unref(plain_font);
}

#else /* !HAVE_GTK2 */

/*
 * There is only one excuse I can give for the following attempt to manage font
 * styles:
 *
 * I HATE THE BRAIN DEAD WAY X11 IS HANDLING FONTS (--mdcki)
 * (Me too. --danielk)
 */
    static void
get_styled_font_variants(char_u * font_name)
{
    char    *chunk[32];
    char    *sdup;
    char    *tmp;
    int        len, i;
    GuiFont    *styled_font[3];

    styled_font[0] = &gui.bold_font;
    styled_font[1] = &gui.ital_font;
    styled_font[2] = &gui.boldital_font;

    /* First free whatever was freviously there. */
    for (i = 0; i < 3; ++i)
    if (*styled_font[i])
    {
        gdk_font_unref(*styled_font[i]);
        *styled_font[i] = NULL;
    }

    if ((sdup = g_strdup((const char *)font_name)) == NULL)
    return;

    /* split up the whole */
    i = 0;
    for (tmp = sdup; *tmp != '\0'; ++tmp)
    {
    if (*tmp == '-')
    {
        *tmp = '\0';

        if (i == 32)
        break;

        chunk[i] = tmp + 1;
        ++i;
    }
    }

    if (i == 14)
    {
    GdkFont        *font = NULL;
    const char    *bold_chunk[3]        = { "bold", NULL,    "bold" };
    const char    *italic_chunk[3]    = { NULL,    "o",    "o" };

    /* font name was complete */
    len = strlen((const char *)font_name) + 32;

    for (i = 0; i < 3; ++i)
    {
        char *styled_name;
        int j;

        styled_name = (char *)alloc(len);
        if (styled_name == NULL)
        {
        g_free(sdup);
        return;
        }

        *styled_name = '\0';

        for (j = 0; j < 14; ++j)
        {
        strcat(styled_name, "-");
        if (j == 2 && bold_chunk[i] != NULL)
            strcat(styled_name, bold_chunk[i]);
        else if (j == 3 && italic_chunk[i] != NULL)
            strcat(styled_name, italic_chunk[i]);
        else
            strcat(styled_name, chunk[j]);
        }

        font = gui_mch_get_font((char_u *)styled_name, FALSE);
        if (font != NULL)
        *styled_font[i] = font;

        vim_free(styled_name);
    }
    }

    g_free(sdup);
}
#endif /* !HAVE_GTK2 */

#ifdef HAVE_GTK2
/*
 * Create a map from ASCII characters in the range [32,126] to glyphs
 * of the current font.  This is used by gui_gtk2_draw_string() to skip
 * the itemize and shaping process for the most common case.
 */
    static void
ascii_glyph_table_init(void)
{
    char_u        ascii_chars[128];
    PangoAttrList   *attr_list;
    GList        *item_list;
    int            i;

    if (gui.ascii_glyphs != NULL)
    pango_glyph_string_free(gui.ascii_glyphs);
    if (gui.ascii_font != NULL)
    g_object_unref(gui.ascii_font);

    gui.ascii_glyphs = NULL;
    gui.ascii_font   = NULL;

    /* For safety, fill in question marks for the control characters. */
    for (i = 0; i < 32; ++i)
    ascii_chars[i] = '?';
    for (; i < 127; ++i)
    ascii_chars[i] = i;
    ascii_chars[i] = '?';

    attr_list = pango_attr_list_new();
    item_list = pango_itemize(gui.text_context, (const char *)ascii_chars,
                  0, sizeof(ascii_chars), attr_list, NULL);

    if (item_list != NULL && item_list->next == NULL) /* play safe */
    {
    PangoItem   *item;
    int        width;

    item  = (PangoItem *)item_list->data;
    width = gui.char_width * PANGO_SCALE;

    gui.ascii_font = item->analysis.font;
    g_object_ref(gui.ascii_font);

    gui.ascii_glyphs = pango_glyph_string_new();

    pango_shape((const char *)ascii_chars, sizeof(ascii_chars),
            &item->analysis, gui.ascii_glyphs);

    g_return_if_fail(gui.ascii_glyphs->num_glyphs == sizeof(ascii_chars));

    for (i = 0; i < gui.ascii_glyphs->num_glyphs; ++i)
    {
        PangoGlyphGeometry *geom;

        geom = &gui.ascii_glyphs->glyphs[i].geometry;
        geom->x_offset += MAX(0, width - geom->width) / 2;
        geom->width = width;
    }
    }

    g_list_foreach(item_list, (GFunc)&pango_item_free, NULL);
    g_list_free(item_list);
    pango_attr_list_unref(attr_list);
}
#endif /* HAVE_GTK2 */

/*
 * Initialize Vim to use the font or fontset with the given name.
 * Return FAIL if the font could not be loaded, OK otherwise.
 */
/*ARGSUSED1*/
    int
gui_mch_init_font(char_u *font_name, int fontset)
{
#ifdef HAVE_GTK2
    PangoFontDescription    *font_desc;
    PangoLayout            *layout;
    int                width;

    /* If font_name is NULL, this means to use the default, which should
     * be present on all proper Pango/fontconfig installations. */
    if (font_name == NULL)
    font_name = (char_u *)DEFAULT_FONT;

    font_desc = gui_mch_get_font(font_name, FALSE);

    if (font_desc == NULL)
    return FAIL;

    gui_mch_free_font(gui.norm_font);
    gui.norm_font = font_desc;

    pango_context_set_font_description(gui.text_context, font_desc);

    layout = pango_layout_new(gui.text_context);
    pango_layout_set_text(layout, "MW", 2);
    pango_layout_get_size(layout, &width, NULL);
    /*
     * Set char_width to half the width obtained from pango_layout_get_size()
     * for CJK fixed_width/bi-width fonts.  An unpatched version of Xft leads
     * Pango to use the same width for both non-CJK characters (e.g. Latin
     * letters and numbers) and CJK characters.  This results in 's p a c e d
     * o u t' rendering when a CJK 'fixed width' font is used. To work around
     * that, divide the width returned by Pango by 2 if cjk_width is equal to
     * width for CJK fonts.
     *
     * For related bugs, see:
     * http://bugzilla.gnome.org/show_bug.cgi?id=106618
     * http://bugzilla.gnome.org/show_bug.cgi?id=106624
     *
     * With this, for all four of the following cases, Vim works fine:
     *       guifont=CJK_fixed_width_font
     *       guifont=Non_CJK_fixed_font
     *       guifont=Non_CJK_fixed_font,CJK_Fixed_font
     *       guifont=Non_CJK_fixed_font guifontwide=CJK_fixed_font
     */
    if (is_cjk_font(gui.norm_font))
    {
    int cjk_width;

    /* Measure the text extent of U+4E00 and U+4E8C */
    pango_layout_set_text(layout, "\344\270\200\344\272\214", -1);
    pango_layout_get_size(layout, &cjk_width, NULL);

    if (width == cjk_width)  /* Xft not patched */
        width /= 2;
    }
    g_object_unref(layout);

    gui.char_width = (width / 2 + PANGO_SCALE - 1) / PANGO_SCALE;

    /* A zero width may cause a crash.    Happens for semi-invalid fontsets. */
    if (gui.char_width <= 0)
    gui.char_width = 8;

    gui_mch_adjust_charsize();

    /* Set the fontname, which will be used for information purposes */
    hl_set_font_name(font_name);

    get_styled_font_variants();
    ascii_glyph_table_init();

    /* Avoid unnecessary overhead if 'guifontwide' is equal to 'guifont'. */
    if (gui.wide_font != NULL
    && pango_font_description_equal(gui.norm_font, gui.wide_font))
    {
    pango_font_description_free(gui.wide_font);
    gui.wide_font = NULL;
    }

#else /* !HAVE_GTK2 */

    GdkFont    *font = NULL;

# ifdef FEAT_XFONTSET
    /* Try loading a fontset.  If this fails we try loading a normal font. */
    if (fontset && font_name != NULL)
    font = gui_mch_get_fontset(font_name, TRUE, TRUE);

    if (font == NULL)
# endif
    {
    /* If font_name is NULL, this means to use the default, which should
     * be present on all X11 servers. */
    if (font_name == NULL)
        font_name = (char_u *)DEFAULT_FONT;
    font = gui_mch_get_font(font_name, FALSE);
    }

    if (font == NULL)
    return FAIL;

    gui_mch_free_font(gui.norm_font);
# ifdef FEAT_XFONTSET
    gui_mch_free_fontset(gui.fontset);
    if (font->type == GDK_FONT_FONTSET)
    {
    gui.norm_font = NOFONT;
    gui.fontset = (GuiFontset)font;
    /* Use two bytes, this works around the problem that the result would
     * be zero if no 8-bit font was found. */
    gui.char_width = gdk_string_width(font, "xW") / 2;
    }
    else
# endif
    {
    gui.norm_font = font;
# ifdef FEAT_XFONTSET
    gui.fontset = NOFONTSET;
# endif
    gui.char_width = ((XFontStruct *)
                      GDK_FONT_XFONT(font))->max_bounds.width;
    }

    /* A zero width may cause a crash.    Happens for semi-invalid fontsets. */
    if (gui.char_width <= 0)
    gui.char_width = 8;

    gui.char_height = font->ascent + font->descent + p_linespace;
    gui.char_ascent = font->ascent + p_linespace / 2;

    /* A not-positive value of char_height may crash Vim.  Only happens
     * if 'linespace' is negative (which does make sense sometimes). */
    gui.char_ascent = MAX(gui.char_ascent, 0);
    gui.char_height = MAX(gui.char_height, gui.char_ascent + 1);

    /* Set the fontname, which will be used for information purposes */
    hl_set_font_name(font_name);

    if (font->type != GDK_FONT_FONTSET)
    get_styled_font_variants(font_name);

    /* Synchronize the fonts used in user input dialogs, since otherwise
     * search/replace will be esp. annoying in case of international font
     * usage.
     */
    gui_gtk_synch_fonts();

# ifdef FEAT_XIM
    /* Adjust input management behaviour to the capabilities of the new
     * fontset */
    xim_decide_input_style();
    if (xim_get_status_area_height())
    {
    /* Status area is required.  Just create the empty container so that
     * mainwin will allocate the extra space for status area. */
    GtkWidget *alignment = gtk_alignment_new((gfloat)0.5, (gfloat)0.5,
                            (gfloat)1.0, (gfloat)1.0);

    gtk_widget_set_usize(alignment, 20, gui.char_height + 2);
    gtk_box_pack_end(GTK_BOX(GTK_BIN(gui.mainwin)->child),
             alignment, FALSE, FALSE, 0);
    gtk_widget_show(alignment);
    }
# endif
#endif /* !HAVE_GTK2 */

    /* Preserve the logical dimensions of the screen. */
    update_window_manager_hints();

    return OK;
}

/*
 * Get a reference to the font "name".
 * Return zero for failure.
 */
    GuiFont
gui_mch_get_font(char_u *name, int report_error)
{
#ifdef HAVE_GTK2
    PangoFontDescription    *font;
#else
    GdkFont            *font;
#endif

    /* can't do this when GUI is not running */
    if (!gui.in_use || name == NULL)
    return NULL;

#ifdef HAVE_GTK2
    if (output_conv.vc_type != CONV_NONE)
    {
    char_u *buf;

    buf = string_convert(&output_conv, name, NULL);
    if (buf != NULL)
    {
        font = pango_font_description_from_string((const char *)buf);
        vim_free(buf);
    }
    else
        font = NULL;
    }
    else
    font = pango_font_description_from_string((const char *)name);

    if (font != NULL)
    {
    PangoFont *real_font;

    /* pango_context_load_font() bails out if no font size is set */
    if (pango_font_description_get_size(font) <= 0)
        pango_font_description_set_size(font, 10 * PANGO_SCALE);

    real_font = pango_context_load_font(gui.text_context, font);

    if (real_font == NULL)
    {
        pango_font_description_free(font);
        font = NULL;
    }
    else
        g_object_unref(real_font);
    }
#else
    font = gdk_font_load((const gchar *)name);
#endif

    if (font == NULL)
    {
    if (report_error)
        EMSG2(_(e_font), name);
    return NULL;
    }

#ifdef HAVE_GTK2
    /*
     * The fixed-width check has been disabled for GTK+ 2.  Rationale:
     *
     *     - The check tends to report false positives, particularly
     *       in non-Latin locales or with old X fonts.
     *     - Thanks to our fixed-width hack in gui_gtk2_draw_string(),
     *       GTK+ 2 Vim is actually capable of displaying variable width
     *       fonts.  Those will just be spaced out like in AA xterm.
     *     - Failing here for the default font causes GUI startup to fail
     *       even with wiped out configuration files.
     *     - The font dialog displays all fonts unfiltered, and it's rather
     *       annoying if 95% of the listed fonts produce an error message.
     */
# if 0
    {
    /* Check that this is a mono-spaced font.  Naturally, this is a bit
     * hackish -- fixed-width isn't really suitable for i18n text :/ */
    PangoLayout    *layout;
    unsigned int    i;
    int        last_width   = -1;
    const char    test_chars[] = { 'W', 'i', ',', 'x' }; /* arbitrary */

    layout = pango_layout_new(gui.text_context);
    pango_layout_set_font_description(layout, font);

    for (i = 0; i < G_N_ELEMENTS(test_chars); ++i)
    {
        int width;

        pango_layout_set_text(layout, &test_chars[i], 1);
        pango_layout_get_size(layout, &width, NULL);

        if (last_width >= 0 && width != last_width)
        {
        pango_font_description_free(font);
        font = NULL;
        break;
        }

        last_width = width;
    }

    g_object_unref(layout);
    }
# endif
#else /* !HAVE_GTK2 */
    {
    XFontStruct *xfont;

    /* reference this font as being in use */
    gdk_font_ref(font);

    /* Check that this is a mono-spaced font.
     */
    xfont = (XFontStruct *) GDK_FONT_XFONT(font);

    if (xfont->max_bounds.width != xfont->min_bounds.width)
    {
        gdk_font_unref(font);
        font = NULL;
    }
    }
#endif /* !HAVE_GTK2 */

#if !defined(HAVE_GTK2) || 0 /* disabled for GTK+ 2, see above */
    if (font == NULL && report_error)
    EMSG2(_(e_fontwidth), name);
#endif

    return font;
}

#if !defined(HAVE_GTK2) || defined(PROTO)
/*
 * Set the current text font.
 * Since we create all GC on demand, we use just gui.current_font to
 * indicate the desired current font.
 */
    void
gui_mch_set_font(GuiFont font)
{
    gui.current_font = font;
}
#endif

#if defined(FEAT_XFONTSET) || defined(PROTO)
/*
 * Set the current text fontset.
 */
    void
gui_mch_set_fontset(GuiFontset fontset)
{
    gui.current_font = fontset;
}
#endif

/*
 * If a font is not going to be used, free its structure.
 */
    void
gui_mch_free_font(GuiFont font)
{
    if (font != NOFONT)
#ifdef HAVE_GTK2
    pango_font_description_free(font);
#else
    gdk_font_unref(font);
#endif
}

#if defined(FEAT_XFONTSET) || defined(PROTO)
/*
 * If a fontset is not going to be used, free its structure.
 */
    void
gui_mch_free_fontset(GuiFontset fontset)
{
    if (fontset != NOFONTSET)
    gdk_font_unref(fontset);
}
#endif


/*
 * Return the Pixel value (color) for the given color name.  This routine was
 * pretty much taken from example code in the Silicon Graphics OSF/Motif
 * Programmer's Guide.
 * Return INVALCOLOR for error.
 */
    guicolor_T
gui_mch_get_color(char_u *name)
{
    /* A number of colors that some X11 systems don't have */
    static const char *const vimnames[][2] =
    {
    {"LightRed",     "#FFBBBB"},
    {"LightGreen",     "#88FF88"},
    {"LightMagenta", "#FFBBFF"},
    {"DarkCyan",     "#008888"},
    {"DarkBlue",     "#0000BB"},
    {"DarkRed",     "#BB0000"},
    {"DarkMagenta",  "#BB00BB"},
    {"DarkGrey",     "#BBBBBB"},
    {"DarkYellow",     "#BBBB00"},
    {NULL, NULL}
    };

    if (!gui.in_use)        /* can't do this when GUI not running */
    return INVALCOLOR;

    while (name != NULL)
    {
    GdkColor    color;
    int        parsed;
    int        i;

    parsed = gdk_color_parse((const char *)name, &color);

#ifndef HAVE_GTK2 /* ohh, lovely GTK+ 2, eases our pain :) */
    /*
     * Since we have already called gtk_set_locale here the bugger
     * XParseColor will accept only explicit color names in the language
     * of the current locale.  However this will interferre with:
     * 1. Vim's global startup files
     * 2. Explicit color names in .vimrc
     *
     * Therefore we first try to parse the color in the current locale and
     * if it fails, we fall back to the portable "C" one.
     */
    if (!parsed)
    {
        char *current;

        current = setlocale(LC_ALL, NULL);
        if (current != NULL)
        {
        char *saved;

        saved = g_strdup(current);
        setlocale(LC_ALL, "C");

        parsed = gdk_color_parse((const gchar *)name, &color);

        setlocale(LC_ALL, saved);
        gtk_set_locale();

        g_free(saved);
        }
    }
#endif /* !HAVE_GTK2 */

    if (parsed)
    {
#ifdef HAVE_GTK2
        gdk_colormap_alloc_color(gtk_widget_get_colormap(gui.drawarea),
                     &color, FALSE, TRUE);
#else
        gdk_color_alloc(gtk_widget_get_colormap(gui.drawarea), &color);
#endif
        return (guicolor_T)color.pixel;
    }
    /* add a few builtin names and try again */
    for (i = 0; ; ++i)
    {
        if (vimnames[i][0] == NULL)
        {
        name = NULL;
        break;
        }
        if (STRICMP(name, vimnames[i][0]) == 0)
        {
        name = (char_u *)vimnames[i][1];
        break;
        }
    }
    }

    return INVALCOLOR;
}

/*
 * Set the current text foreground color.
 */
    void
gui_mch_set_fg_color(guicolor_T color)
{
    gui.fgcolor->pixel = (unsigned long)color;
}

/*
 * Set the current text background color.
 */
    void
gui_mch_set_bg_color(guicolor_T color)
{
    gui.bgcolor->pixel = (unsigned long)color;
}

#ifdef HAVE_GTK2
/*
 * Function-like convenience macro for the sake of efficiency.
 */
#define INSERT_PANGO_ATTR(Attribute, AttrList, Start, End)  \
    G_STMT_START{                        \
    PangoAttribute *tmp_attr_;                \
    tmp_attr_ = (Attribute);                \
    tmp_attr_->start_index = (Start);            \
    tmp_attr_->end_index = (End);                \
    pango_attr_list_insert((AttrList), tmp_attr_);        \
    }G_STMT_END

    static void
apply_wide_font_attr(char_u *s, int len, PangoAttrList *attr_list)
{
    char_u  *start = NULL;
    char_u  *p;
    int        uc;

    for (p = s; p < s + len; p += utf_byte2len(*p))
    {
    uc = utf_ptr2char(p);

    if (start == NULL)
    {
        if (uc >= 0x100 && utf_char2cells(uc) == 2)
        start = p;
    }
    else if (uc < 0x100 /* optimization shortcut */
         || (utf_char2cells(uc) != 2 && !utf_iscomposing(uc)))
    {
        INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font),
                  attr_list, start - s, p - s);
        start = NULL;
    }
    }

    if (start != NULL)
    INSERT_PANGO_ATTR(pango_attr_font_desc_new(gui.wide_font),
              attr_list, start - s, len);
}

    static int
count_cluster_cells(char_u *s, PangoItem *item,
            PangoGlyphString* glyphs, int i,
            int *cluster_width,
            int *last_glyph_rbearing)
{
    char_u  *p;
    int        next;    /* glyph start index of next cluster */
    int        start, end; /* string segment of current cluster */
    int        width;    /* real cluster width in Pango units */
    int        uc;
    int        cellcount = 0;

    width = glyphs->glyphs[i].geometry.width;

    for (next = i + 1; next < glyphs->num_glyphs; ++next)
    {
    if (glyphs->glyphs[next].attr.is_cluster_start)
        break;
    else if (glyphs->glyphs[next].geometry.width > width)
        width = glyphs->glyphs[next].geometry.width;
    }

    start = item->offset + glyphs->log_clusters[i];
    end   = item->offset + ((next < glyphs->num_glyphs) ?
                glyphs->log_clusters[next] : item->length);

    for (p = s + start; p < s + end; p += utf_byte2len(*p))
    {
    uc = utf_ptr2char(p);
    if (uc < 0x100)
        ++cellcount;
    else if (!utf_iscomposing(uc))
        cellcount += utf_char2cells(uc);
    }

    if (last_glyph_rbearing != NULL
        && cellcount > 0 && next == glyphs->num_glyphs)
    {
    PangoRectangle ink_rect;
    /*
     * If a certain combining mark had to be taken from a non-monospace
     * font, we have to compensate manually by adapting x_offset according
     * to the ink extents of the previous glyph.
     */
    pango_font_get_glyph_extents(item->analysis.font,
                     glyphs->glyphs[i].glyph,
                     &ink_rect, NULL);

    if (PANGO_RBEARING(ink_rect) > 0)
        *last_glyph_rbearing = PANGO_RBEARING(ink_rect);
    }

    if (cellcount > 0)
    *cluster_width = width;

    return cellcount;
}

/*
 * If there are only combining characters in the cluster, we cannot just
 * change the width of the previous glyph since there is none.    Therefore
 * some guesswork is needed.
 *
 * If ink_rect.x is negative Pango apparently has taken care of the composing
 * by itself.  Actually setting x_offset = 0 should be sufficient then, but due
 * to problems with composing from different fonts we still need to fine-tune
 * x_offset to avoid uglyness.
 *
 * If ink_rect.x is not negative, force overstriking by pointing x_offset to
 * the position of the previous glyph.    Apparently this happens only with old
 * X fonts which don't provide the special combining information needed by
 * Pango.
 */
    static void
setup_zero_width_cluster(PangoItem *item, PangoGlyphInfo *glyph,
             int last_cellcount, int last_cluster_width,
             int last_glyph_rbearing)
{
    PangoRectangle  ink_rect;
    PangoRectangle  logical_rect;
    int            width;

    width = last_cellcount * gui.char_width * PANGO_SCALE;
    glyph->geometry.x_offset = -width + MAX(0, width - last_cluster_width) / 2;
    glyph->geometry.width = 0;

    pango_font_get_glyph_extents(item->analysis.font,
                 glyph->glyph,
                 &ink_rect, &logical_rect);
    if (ink_rect.x < 0)
    {
    glyph->geometry.x_offset += last_glyph_rbearing;
    glyph->geometry.y_offset  = logical_rect.height
        - (gui.char_height - p_linespace) * PANGO_SCALE;
    }
}

    static void
draw_glyph_string(int row, int col, int num_cells, int flags,
          PangoFont *font, PangoGlyphString *glyphs)
{
    if (!(flags & DRAW_TRANSP))
    {
    gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);

    gdk_draw_rectangle(gui.drawarea->window,
               gui.text_gc,
               TRUE,
               FILL_X(col),
               FILL_Y(row),
               num_cells * gui.char_width,
               gui.char_height);
    }

    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);

    gdk_draw_glyphs(gui.drawarea->window,
            gui.text_gc,
            font,
            TEXT_X(col),
            TEXT_Y(row),
            glyphs);

    /* redraw the contents with an offset of 1 to emulate bold */
    if ((flags & DRAW_BOLD) && !gui.font_can_bold)
    gdk_draw_glyphs(gui.drawarea->window,
            gui.text_gc,
            font,
            TEXT_X(col) + 1,
            TEXT_Y(row),
            glyphs);
}

#endif /* HAVE_GTK2 */

#if defined(HAVE_GTK2) || defined(PROTO)
    int
gui_gtk2_draw_string(int row, int col, char_u *s, int len, int flags)
{
    GdkRectangle    area;            /* area for clip mask      */
    char_u        *conv_buf = NULL;   /* result of UTF-8 conversion */
    PangoGlyphString    *glyphs;        /* glyphs of current item      */
    int            column_offset = 0;  /* column offset in cells      */
    int            i;

    if (gui.text_context == NULL || gui.drawarea->window == NULL)
    return len;

    if (output_conv.vc_type != CONV_NONE)
    {
    /*
     * Convert characters from 'encoding' to 'termencoding', which is set
     * to UTF-8 by gui_mch_init().    did_set_string_option() in option.c
     * prohibits changing this to something else than UTF-8 if the GUI is
     * in use.
     */
    conv_buf = string_convert(&output_conv, s, &len);
    s = conv_buf;

    g_return_val_if_fail(conv_buf != NULL, len);
    }

    /*
     * Restrict all drawing to the current screen line in order to prevent
     * fuzzy font lookups from messing up the screen.
     */
    area.x = gui.border_offset;
    area.y = FILL_Y(row);
    area.width    = gui.num_cols * gui.char_width;
    area.height = gui.char_height;

    gdk_gc_set_clip_origin(gui.text_gc, 0, 0);
    gdk_gc_set_clip_rectangle(gui.text_gc, &area);

    glyphs = pango_glyph_string_new();

    /*
     * Optimization hack:  If possible, skip the itemize and shaping process
     * for pure ASCII strings.    This optimization is particularly effective
     * because Vim draws space characters to clear parts of the screen.
     */
    if (!(flags & DRAW_ITALIC)
        && !((flags & DRAW_BOLD) && gui.font_can_bold)
        && gui.ascii_glyphs != NULL)
    {
    char_u *p;

    for (p = s; p < s + len; ++p)
        if (*p & 0x80) goto not_ascii;

    pango_glyph_string_set_size(glyphs, len);

    for (i = 0; i < len; ++i)
    {
        glyphs->glyphs[i] = gui.ascii_glyphs->glyphs[s[i]];
        glyphs->log_clusters[i] = i;
    }

    draw_glyph_string(row, col, len, flags, gui.ascii_font, glyphs);

    column_offset = len;
    }
    else
not_ascii:
    {
    PangoAttrList    *attr_list;
    GList        *item_list;
    int        cluster_width;
    int        last_glyph_rbearing;
    int        cells = 0;  /* cells occupied by current cluster */

    /* original width of the current cluster */
    cluster_width = PANGO_SCALE * gui.char_width;

    /* right bearing of the last non-composing glyph */
    last_glyph_rbearing = PANGO_SCALE * gui.char_width;

    attr_list = pango_attr_list_new();

    /* If 'guifontwide' is set then use that for double-width characters.
     * Otherwise just go with 'guifont' and let Pango do its thing. */
    if (gui.wide_font != NULL)
        apply_wide_font_attr(s, len, attr_list);

    if ((flags & DRAW_BOLD) && gui.font_can_bold)
        INSERT_PANGO_ATTR(pango_attr_weight_new(PANGO_WEIGHT_BOLD),
                  attr_list, 0, len);
    if (flags & DRAW_ITALIC)
        INSERT_PANGO_ATTR(pango_attr_style_new(PANGO_STYLE_ITALIC),
                  attr_list, 0, len);
    /*
     * Break the text into segments with consistent directional level
     * and shaping engine.    Pure Latin text needs only a single segment,
     * so there's no need to worry about the loop's efficiency.  Better
     * try to optimize elsewhere, e.g. reducing exposes and stuff :)
     */
    item_list = pango_itemize(gui.text_context,
                  (const char *)s, 0, len, attr_list, NULL);

    while (item_list != NULL)
    {
        PangoItem    *item;
        int        item_cells = 0; /* item length in cells */

        item = (PangoItem *)item_list->data;
        item_list = g_list_delete_link(item_list, item_list);
        /*
         * Increment the bidirectional embedding level by 1 if it is not
         * even.  An odd number means the output will be RTL, but we don't
         * want that since Vim handles right-to-left text on its own.  It
         * would probably be sufficient to just set level = 0, but you can
         * never know :)
         *
         * Unfortunately we can't take advantage of Pango's ability to
         * render both LTR and RTL at the same time.  In order to support
         * that, Vim's main screen engine would have to make use of Pango
         * functionality.
         */
        item->analysis.level = (item->analysis.level + 1) & (~1U);

        pango_shape((const char *)s + item->offset, item->length,
            &item->analysis, glyphs);
        /*
         * Fixed-width hack: iterate over the array and assign a fixed
         * width to each glyph, thus overriding the choice made by the
         * shaping engine.    We use utf_char2cells() to determine the
         * number of cells needed.
         *
         * Also perform all kind of dark magic to get composing
         * characters right (and pretty too of course).
         */
        for (i = 0; i < glyphs->num_glyphs; ++i)
        {
        PangoGlyphInfo *glyph;

        glyph = &glyphs->glyphs[i];

        if (glyph->attr.is_cluster_start)
        {
            int cellcount;

            cellcount = count_cluster_cells(
            s, item, glyphs, i, &cluster_width,
            (item_list != NULL) ? &last_glyph_rbearing : NULL);

            if (cellcount > 0)
            {
            int width;

            width = cellcount * gui.char_width * PANGO_SCALE;
            glyph->geometry.x_offset +=
                        MAX(0, width - cluster_width) / 2;
            glyph->geometry.width = width;
            }
            else
            {
            /* If there are only combining characters in the
             * cluster, we cannot just change the width of the
             * previous glyph since there is none.    Therefore
             * some guesswork is needed. */
            setup_zero_width_cluster(item, glyph, cells,
                         cluster_width,
                         last_glyph_rbearing);
            }

            item_cells += cellcount;
            cells = cellcount;
        }
        else if (i > 0) /* i == 0 "cannot happen" */
        {
            int width;

            /* There is a previous glyph, so we deal with combining
             * characters the canonical way.  That is, setting the
             * width of the previous glyph to 0. */
            glyphs->glyphs[i - 1].geometry.width = 0;

            width = cells * gui.char_width * PANGO_SCALE;
            glyph->geometry.x_offset +=
                        MAX(0, width - cluster_width) / 2;
            glyph->geometry.width = width;
        }
        else
        {
            glyph->geometry.width = 0;
        }
        }

        /*** Aaaaand action! ***/
        draw_glyph_string(row, col + column_offset, item_cells,
                  flags, item->analysis.font, glyphs);

        pango_item_free(item);

        column_offset += item_cells;
    }

    pango_attr_list_unref(attr_list);
    }

    if (flags & DRAW_UNDERL)
    gdk_draw_line(gui.drawarea->window,
              gui.text_gc,
              FILL_X(col),
              FILL_Y(row + 1) - 1,
              FILL_X(col + column_offset) - 1,
              FILL_Y(row + 1) - 1);

    pango_glyph_string_free(glyphs);
    vim_free(conv_buf);

    gdk_gc_set_clip_rectangle(gui.text_gc, NULL);

    return column_offset;
}
#endif /* HAVE_GTK2 */

#if !defined(HAVE_GTK2) || defined(PROTO)
    void
gui_mch_draw_string(int row, int col, char_u *s, int len, int flags)
{
    static XChar2b    *buf = NULL;
    static int        buflen = 0;
    int            is_wide;
    XChar2b        *text;
    int            textlen;
    XFontStruct        *xfont;
    char_u        *p;
# ifdef FEAT_MBYTE
    unsigned        c;
# endif
    int            width;

    if (gui.current_font == NULL || gui.drawarea->window == NULL)
    return;

    /*
     * Yeah yeah apparently the font support in GTK+ 1.2 only cares for either:
     * asians or 8-bit fonts. It is broken there, but no wonder the whole font
     * stuff is broken in X11 in first place. And the internationalization API
     * isn't something you would really like to use.
     */

    xfont = (XFontStruct *)((GdkFontPrivate*)gui.current_font)->xfont;
    is_wide = ((xfont->min_byte1 != 0 || xfont->max_byte1 != 0)
# ifdef FEAT_XFONTSET
        && gui.fontset == NOFONTSET
# endif
        );

    if (is_wide)
    {
    /* Convert a byte sequence to 16 bit characters for the Gdk functions.
     * Need a buffer for the 16 bit characters.  Keep it between calls,
     * because allocating it each time is slow. */
    if (buflen < len)
    {
        XtFree((char *)buf);
        buf = (XChar2b *)XtMalloc(len * sizeof(XChar2b));
        buflen = len;
    }

    p = s;
    textlen = 0;
    width = 0;
    while (p < s + len)
    {
# ifdef FEAT_MBYTE
        if (enc_utf8)
        {
        c = utf_ptr2char(p);
        if (c >= 0x10000)    /* show chars > 0xffff as ? */
            c = 0xbf;
        buf[textlen].byte1 = c >> 8;
        buf[textlen].byte2 = c;
        p += utf_ptr2len_check(p);
        width += utf_char2cells(c);
        }
        else
# endif
        {
        buf[textlen].byte1 = '\0';    /* high eight bits */
        buf[textlen].byte2 = *p;    /* low eight bits */
        ++p;
        ++width;
        }
        ++textlen;
    }
    text = buf;
    textlen = textlen * 2;
    }
    else
    {
    text = (XChar2b *)s;
    textlen = len;
# ifdef FEAT_MBYTE
    if (has_mbyte)
    {
        width = 0;
        for (p = s; p < s + len; p += (*mb_ptr2len_check)(p))
        width += (*mb_ptr2cells)(p);
    }
    else
# endif
        width = len;
    }

    if (!(flags & DRAW_TRANSP))
    {
    gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);
    gdk_draw_rectangle(gui.drawarea->window,
               gui.text_gc,
               TRUE,
               FILL_X(col), FILL_Y(row),
               width * gui.char_width, gui.char_height);
    }
    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
    gdk_draw_text(gui.drawarea->window,
          gui.current_font,
          gui.text_gc,
          TEXT_X(col), TEXT_Y(row),
          (const gchar *)text, textlen);

    /* redraw the contents with an offset of 1 to emulate bold */
    if (flags & DRAW_BOLD)
    gdk_draw_text(gui.drawarea->window,
              gui.current_font,
              gui.text_gc,
              TEXT_X(col) + 1, TEXT_Y(row),
              (const gchar *)text, textlen);

    if (flags & DRAW_UNDERL)
    {
    gdk_draw_line(gui.drawarea->window,
              gui.text_gc, FILL_X(col),
    FILL_Y(row + 1) - 1, FILL_X(col + width) - 1, FILL_Y(row + 1) - 1);
    }
}
#endif /* !HAVE_GTK2 */

/*
 * Return OK if the key with the termcap name "name" is supported.
 */
    int
gui_mch_haskey(char_u *name)
{
    int i;

    for (i = 0; special_keys[i].key_sym != 0; i++)
    if (name[0] == special_keys[i].code0
        && name[1] == special_keys[i].code1)
        return OK;
    return FAIL;
}

#if defined(FEAT_TITLE) \
    || (defined(FEAT_XIM) && !defined(HAVE_GTK2)) \
    || defined(PROTO)
/*
 * Return the text window-id and display.  Only required for X-based GUI's
 */
    int
gui_get_x11_windis(Window *win, Display **dis)
{
    if (gui.mainwin != NULL && gui.mainwin->window != NULL)
    {
    *dis = GDK_WINDOW_XDISPLAY(gui.mainwin->window);
    *win = GDK_WINDOW_XWINDOW(gui.mainwin->window);
    return OK;
    }

    *dis = NULL;
    *win = 0;
    return FAIL;
}
#endif

#if defined(FEAT_CLIENTSERVER) \
    || (defined(FEAT_X11) && defined(FEAT_CLIPBOARD)) || defined(PROTO)

    Display *
gui_mch_get_display(void)
{
    if (gui.mainwin != NULL && gui.mainwin->window != NULL)
    return GDK_WINDOW_XDISPLAY(gui.mainwin->window);
    else
    return NULL;
}
#endif

    void
gui_mch_beep(void)
{
#ifdef HAVE_GTK_MULTIHEAD
    GdkDisplay *display;

    if (gui.mainwin != NULL && GTK_WIDGET_REALIZED(gui.mainwin))
    display = gtk_widget_get_display(gui.mainwin);
    else
    display = gdk_display_get_default();

    if (display != NULL)
    gdk_display_beep(display);
#else
    gdk_beep();
#endif
}

    void
gui_mch_flash(int msec)
{
    GdkGCValues    values;
    GdkGC    *invert_gc;

    if (gui.drawarea->window == NULL)
    return;

    values.foreground.pixel = gui.norm_pixel ^ gui.back_pixel;
    values.background.pixel = gui.norm_pixel ^ gui.back_pixel;
    values.function = GDK_XOR;
    invert_gc = gdk_gc_new_with_values(gui.drawarea->window,
                       &values,
                       GDK_GC_FOREGROUND |
                       GDK_GC_BACKGROUND |
                       GDK_GC_FUNCTION);
    gdk_gc_set_exposures(invert_gc,
             gui.visibility != GDK_VISIBILITY_UNOBSCURED);
    /*
     * Do a visual beep by changing back and forth in some undetermined way,
     * the foreground and background colors.  This is due to the fact that
     * there can't be really any prediction about the effects of XOR on
     * arbitrary X11 servers. However this seems to be enough for what we
     * intend it to do.
     */
    gdk_draw_rectangle(gui.drawarea->window, invert_gc,
               TRUE,
               0, 0,
               FILL_X((int)Columns) + gui.border_offset,
               FILL_Y((int)Rows) + gui.border_offset);

    gui_mch_flush();
    ui_delay((long)msec, TRUE);    /* wait so many msec */

    gdk_draw_rectangle(gui.drawarea->window, invert_gc,
               TRUE,
               0, 0,
               FILL_X((int)Columns) + gui.border_offset,
               FILL_Y((int)Rows) + gui.border_offset);

    gdk_gc_destroy(invert_gc);
}

/*
 * Invert a rectangle from row r, column c, for nr rows and nc columns.
 */
    void
gui_mch_invert_rectangle(int r, int c, int nr, int nc)
{
    GdkGCValues values;
    GdkGC *invert_gc;
    GdkColor foreground;
    GdkColor background;

    if (gui.drawarea->window == NULL)
    return;

    foreground.pixel = gui.norm_pixel ^ gui.back_pixel;
    background.pixel = gui.norm_pixel ^ gui.back_pixel;

    values.foreground = foreground;
    values.background = background;
    values.function = GDK_XOR;
    invert_gc = gdk_gc_new_with_values(gui.drawarea->window,
                       &values,
                       GDK_GC_FOREGROUND |
                       GDK_GC_BACKGROUND |
                       GDK_GC_FUNCTION);
    gdk_gc_set_exposures(invert_gc, gui.visibility != GDK_VISIBILITY_UNOBSCURED);
    gdk_draw_rectangle(gui.drawarea->window, invert_gc,
               TRUE,
               FILL_X(c), FILL_Y(r),
               (nc) * gui.char_width, (nr) * gui.char_height);
    gdk_gc_destroy(invert_gc);
}

/*
 * Iconify the GUI window.
 */
    void
gui_mch_iconify(void)
{
#ifdef HAVE_GTK2
    gtk_window_iconify(GTK_WINDOW(gui.mainwin));
#else
    XIconifyWindow(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
           GDK_WINDOW_XWINDOW(gui.mainwin->window),
           DefaultScreen(GDK_WINDOW_XDISPLAY(gui.mainwin->window)));
#endif
}

#if defined(FEAT_EVAL) || defined(PROTO)
/*
 * Bring the Vim window to the foreground.
 */
    void
gui_mch_set_foreground(void)
{
# ifdef HAVE_GTK2
    gtk_window_present(GTK_WINDOW(gui.mainwin));
# else
    gdk_window_raise(gui.mainwin->window);
# endif
}
#endif

/*
 * Draw a cursor without focus.
 */
    void
gui_mch_draw_hollow_cursor(guicolor_T color)
{
    int        i = 1;

    if (gui.drawarea->window == NULL)
    return;

    gui_mch_set_fg_color(color);

    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
#ifdef FEAT_MBYTE
    if (mb_lefthalve(gui.row, gui.col))
    i = 2;
#endif
    gdk_draw_rectangle(gui.drawarea->window, gui.text_gc,
        FALSE,
        FILL_X(gui.col), FILL_Y(gui.row),
        i * gui.char_width - 1, gui.char_height - 1);
}

/*
 * Draw part of a cursor, "w" pixels wide, and "h" pixels high, using
 * color "color".
 */
    void
gui_mch_draw_part_cursor(int w, int h, guicolor_T color)
{
    if (gui.drawarea->window == NULL)
    return;

    gui_mch_set_fg_color(color);

    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
    gdk_draw_rectangle(gui.drawarea->window, gui.text_gc,
        TRUE,
#ifdef FEAT_RIGHTLEFT
        /* vertical line should be on the right of current point */
        CURSOR_BAR_RIGHT ? FILL_X(gui.col + 1) - w :
#endif
        FILL_X(gui.col),
        FILL_Y(gui.row) + gui.char_height - h,
        w, h);
}


/*
 * Catch up with any queued X11 events.  This may put keyboard input into the
 * input buffer, call resize call-backs, trigger timers etc.  If there is
 * nothing in the X11 event queue (& no timers pending), then we return
 * immediately.
 */
    void
gui_mch_update(void)
{
    while (gtk_events_pending() && !vim_is_input_buf_full())
    gtk_main_iteration_do(FALSE);
}

    static gint
input_timer_cb(gpointer data)
{
    int *timed_out = (int *) data;

    /* Just inform the caller about the occurence of it */
    *timed_out = TRUE;

    if (gtk_main_level() > 0)
    gtk_main_quit();

    return FALSE;        /* don't happen again */
}

#ifdef FEAT_SNIFF
/*
 * Callback function, used when data is available on the SNiFF connection.
 */
/* ARGSUSED */
    static void
sniff_request_cb(
    gpointer    data,
    gint    source_fd,
    GdkInputCondition condition)
{
    static char_u bytes[3] = {CSI, (int)KS_EXTRA, (int)KE_SNIFF};

    add_to_input_buf(bytes, 3);

    if (gtk_main_level() > 0)
    gtk_main_quit();
}
#endif

/*
 * GUI input routine called by gui_wait_for_chars().  Waits for a character
 * from the keyboard.
 *  wtime == -1     Wait forever.
 *  wtime == 0        This should never happen.
 *  wtime > 0        Wait wtime milliseconds for a character.
 * Returns OK if a character was found to be available within the given time,
 * or FAIL otherwise.
 */
    int
gui_mch_wait_for_chars(long wtime)
{
    int focus;
    guint timer;
    static int timed_out;
#ifdef FEAT_SNIFF
    static int    sniff_on = 0;
    static gint    sniff_input_id = 0;
#endif

#ifdef FEAT_SNIFF
    if (sniff_on && !want_sniff_request)
    {
    if (sniff_input_id)
        gdk_input_remove(sniff_input_id);
    sniff_on = 0;
    }
    else if (!sniff_on && want_sniff_request)
    {
    /* Add fd_from_sniff to watch for available data in main loop. */
    sniff_input_id = gdk_input_add(fd_from_sniff,
                   GDK_INPUT_READ, sniff_request_cb, NULL);
    sniff_on = 1;
    }
#endif

    timed_out = FALSE;

    /* this timeout makes sure that we will return if no characters arrived in
     * time */

    if (wtime > 0)
    timer = gtk_timeout_add((guint32)wtime, input_timer_cb, &timed_out);
    else
    timer = 0;

    focus = gui.in_focus;

    do
    {
    /* Stop or start blinking when focus changes */
    if (gui.in_focus != focus)
    {
        if (gui.in_focus)
        gui_mch_start_blink();
        else
        gui_mch_stop_blink();
        focus = gui.in_focus;
    }

    /*
     * Loop in GTK+ processing  until a timeout or input occurs.
     */
    gtk_main();

    /* Got char, return immediately */
    if (input_available())
    {
        if (timer != 0 && !timed_out)
        gtk_timeout_remove(timer);
        return OK;
    }
    } while (wtime < 0 || !timed_out);

    /*
     * Flush all eventually pending (drawing) events.
     */
    gui_mch_update();

    return FAIL;
}


/****************************************************************************
 * Output drawing routines.
 ****************************************************************************/


/* Flush any output to the screen */
    void
gui_mch_flush(void)
{
#ifdef HAVE_GTK_MULTIHEAD
    if (gui.mainwin != NULL && GTK_WIDGET_REALIZED(gui.mainwin))
    gdk_display_sync(gtk_widget_get_display(gui.mainwin));
#else
    gdk_flush(); /* historical misnomer: calls XSync(), not XFlush() */
#endif
#ifdef HAVE_GTK2
    /* This happens to actually do what gui_mch_flush() is supposed to do,
     * according to the comment above. */
    if (gui.drawarea != NULL && gui.drawarea->window != NULL)
    gdk_window_process_updates(gui.drawarea->window, FALSE);
#endif
}

/*
 * Clear a rectangular region of the screen from text pos (row1, col1) to
 * (row2, col2) inclusive.
 */
    void
gui_mch_clear_block(int row1, int col1, int row2, int col2)
{
    GdkColor color;

    if (gui.drawarea->window == NULL)
    return;

    color.pixel = gui.back_pixel;

    gdk_gc_set_foreground(gui.text_gc, &color);

    /* Clear one extra pixel at the far right, for when bold characters have
     * spilled over to the window border. */
    gdk_draw_rectangle(gui.drawarea->window, gui.text_gc, TRUE,
               FILL_X(col1), FILL_Y(row1),
               (col2 - col1 + 1) * gui.char_width
                              + (col2 == Columns - 1),
               (row2 - row1 + 1) * gui.char_height);
}

    void
gui_mch_clear_all(void)
{
    if (gui.drawarea->window != NULL)
    gdk_window_clear(gui.drawarea->window);
}

/*
 * Redraw any text revealed by scrolling up/down.
 */
    static void
check_copy_area(void)
{
    GdkEvent    *event;
    int        expose_count;

    if (gui.visibility != GDK_VISIBILITY_PARTIAL)
    return;

    /* Avoid redrawing the cursor while scrolling or it'll end up where
     * we don't want it to be.    I'm not sure if it's correct to call
     * gui_dont_update_cursor() at this point but it works as a quick
     * fix for now. */
    gui_dont_update_cursor();

    do
    {
    /* Wait to check whether the scroll worked or not. */
    event = gdk_event_get_graphics_expose(gui.drawarea->window);

    if (event == NULL)
        break; /* received NoExpose event */

    gui_redraw(event->expose.area.x, event->expose.area.y,
           event->expose.area.width, event->expose.area.height);

    expose_count = event->expose.count;
    gdk_event_free(event);
    }
    while (expose_count > 0); /* more events follow */

    gui_can_update_cursor();
}

/*
 * Delete the given number of lines from the given row, scrolling up any
 * text further down within the scroll region.
 */
    void
gui_mch_delete_lines(int row, int num_lines)
{
    if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED)
    return;            /* Can't see the window */

    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
    gdk_gc_set_background(gui.text_gc, gui.bgcolor);

    /* copy one extra pixel, for when bold has spilled over */
    gdk_window_copy_area(gui.drawarea->window, gui.text_gc,
        FILL_X(gui.scroll_region_left), FILL_Y(row),
        gui.drawarea->window,
        FILL_X(gui.scroll_region_left),
        FILL_Y(row + num_lines),
        gui.char_width * (gui.scroll_region_right
                        - gui.scroll_region_left + 1) + 1,
        gui.char_height * (gui.scroll_region_bot - row - num_lines + 1));

    gui_clear_block(gui.scroll_region_bot - num_lines + 1,
                               gui.scroll_region_left,
            gui.scroll_region_bot, gui.scroll_region_right);
    check_copy_area();
}

/*
 * Insert the given number of lines before the given row, scrolling down any
 * following text within the scroll region.
 */
    void
gui_mch_insert_lines(int row, int num_lines)
{
    if (gui.visibility == GDK_VISIBILITY_FULLY_OBSCURED)
    return;            /* Can't see the window */

    gdk_gc_set_foreground(gui.text_gc, gui.fgcolor);
    gdk_gc_set_background(gui.text_gc, gui.bgcolor);

    /* copy one extra pixel, for when bold has spilled over */
    gdk_window_copy_area(gui.drawarea->window, gui.text_gc,
        FILL_X(gui.scroll_region_left), FILL_Y(row + num_lines),
        gui.drawarea->window,
        FILL_X(gui.scroll_region_left), FILL_Y(row),
        gui.char_width * (gui.scroll_region_right
                        - gui.scroll_region_left + 1) + 1,
        gui.char_height * (gui.scroll_region_bot - row - num_lines + 1));

    gui_clear_block(row, gui.scroll_region_left,
                row + num_lines - 1, gui.scroll_region_right);
    check_copy_area();
}

/*
 * X Selection stuff, for cutting and pasting text to other windows.
 */
    void
clip_mch_request_selection(VimClipboard *cbd)
{
    GdkAtom    target;
    unsigned    i;
    int        nbytes;
    char_u    *buffer;

    for (i = 0; i < N_SELECTION_TARGETS; ++i)
    {
    received_selection = RS_NONE;
    target = gdk_atom_intern(selection_targets[i].target, FALSE);

    gtk_selection_convert(gui.drawarea,
                  cbd->gtk_sel_atom, target,
                  (guint32)GDK_CURRENT_TIME);

    while (received_selection == RS_NONE)
        gtk_main();    /* wait for selection_received_cb */

    if (received_selection != RS_FAIL)
        return;
    }

    /* Final fallback position - use the X CUT_BUFFER0 store */
    nbytes = 0;
    buffer = (char_u *)XFetchBuffer(GDK_WINDOW_XDISPLAY(gui.mainwin->window),
                    &nbytes, 0);
    if (nbytes > 0)
    {
    /* Got something */
    clip_yank_selection(MCHAR, buffer, (long)nbytes, cbd);
    if (p_verbose > 0)
        smsg((char_u *)_("Used CUT_BUFFER0 instead of empty selection"));
    }
    if (buffer != NULL)
    XFree(buffer);
}

/*
 * Disown the selection.
 */
/*ARGSUSED*/
    void
clip_mch_lose_selection(VimClipboard *cbd)
{
    /* WEIRD: when using NULL to actually disown the selection, we lose the
     * selection the first time we own it. */
    /*
    gtk_selection_owner_set(NULL, cbd->gtk_sel_atom, (guint32)GDK_CURRENT_TIME);
    gui_mch_update();
     */
}

/*
 * Own the selection and return OK if it worked.
 */
    int
clip_mch_own_selection(VimClipboard *cbd)
{
    int success;

    success = gtk_selection_owner_set(gui.drawarea, cbd->gtk_sel_atom,
                      (guint32)GDK_CURRENT_TIME);
    gui_mch_update();
    return (success) ? OK : FAIL;
}

/*
 * Send the current selection to the clipboard.  Do nothing for X because we
 * will fill in the selection only when requested by another app.
 */
/*ARGSUSED*/
    void
clip_mch_set_selection(VimClipboard *cbd)
{
}


#if defined(FEAT_MENU) || defined(PROTO)
/*
 * Make a menu item appear either active or not active (grey or not grey).
 */
    void
gui_mch_menu_grey(vimmenu_T *menu, int grey)
{
    if (menu->id == NULL)
    return;

    if (menu_is_separator(menu->name))
    grey = TRUE;

    gui_mch_menu_hidden(menu, FALSE);
    /* Be clever about bitfields versus true booleans here! */
    if (!GTK_WIDGET_SENSITIVE(menu->id) == !grey)
    {
    gtk_widget_set_sensitive(menu->id, !grey);
    gui_mch_update();
    }
}

/*
 * Make menu item hidden or not hidden.
 */
    void
gui_mch_menu_hidden(vimmenu_T *menu, int hidden)
{
    if (menu->id == 0)
    return;

    if (hidden)
    {
    if (GTK_WIDGET_VISIBLE(menu->id))
    {
        gtk_widget_hide(menu->id);
        gui_mch_update();
    }
    }
    else
    {
    if (!GTK_WIDGET_VISIBLE(menu->id))
    {
        gtk_widget_show(menu->id);
        gui_mch_update();
    }
    }
}

/*
 * This is called after setting all the menus to grey/hidden or not.
 */
    void
gui_mch_draw_menubar(void)
{
    /* just make sure that the visual changes get effect immediately */
    gui_mch_update();
}
#endif /* FEAT_MENU */

/*
 * Scrollbar stuff.
 */
    void
gui_mch_enable_scrollbar(scrollbar_T *sb, int flag)
{
    if (sb->id == NULL)
    return;

    if (flag)
    gtk_widget_show(sb->id);
    else
    gtk_widget_hide(sb->id);

    update_window_manager_hints();
}


/*
 * Return the RGB value of a pixel as long.
 */
    long_u
gui_mch_get_rgb(guicolor_T pixel)
{
    GdkColor color;
#ifndef HAVE_GTK2
    GdkColorContext *cc;

    cc = gdk_color_context_new(gtk_widget_get_visual(gui.drawarea),
                   gtk_widget_get_colormap(gui.drawarea));
    color.pixel = pixel;
    gdk_color_context_query_color(cc, &color);

    gdk_color_context_free(cc);
#else
    gdk_colormap_query_color(gtk_widget_get_colormap(gui.drawarea),
                 (unsigned long)pixel, &color);
#endif

    return (((unsigned)color.red   & 0xff00) << 8)
     |  ((unsigned)color.green & 0xff00)
     | (((unsigned)color.blue  & 0xff00) >> 8);
}

/*
 * Get current y mouse coordinate in text window.
 * Return -1 when unknown.
 */
    int
gui_mch_get_mouse_x(void)
{
    int win_x;

    gdk_window_get_pointer(gui.drawarea->window, &win_x, NULL, NULL);
    return win_x;
}

    int
gui_mch_get_mouse_y(void)
{
    int win_y;

    gdk_window_get_pointer(gui.drawarea->window, NULL, &win_y, NULL);
    return win_y;
}

    void
gui_mch_setmouse(int x, int y)
{
    /* Sorry for the Xlib call, but we can't avoid it, since there is no
     * internal GDK mechanism present to accomplish this.  (and for good
     * reason...) */
    XWarpPointer(GDK_WINDOW_XDISPLAY(gui.drawarea->window),
         (Window)0, GDK_WINDOW_XWINDOW(gui.drawarea->window),
         0, 0, 0U, 0U, x, y);
}


#ifdef FEAT_MOUSESHAPE
/* The last set mouse pointer shape is remembered, to be used when it goes
 * from hidden to not hidden. */
static int last_shape = 0;
#endif

/*
 * Use the blank mouse pointer or not.
 *
 * hide: TRUE = use blank ptr, FALSE = use parent ptr
 */
    void
gui_mch_mousehide(int hide)
{
    if (gui.pointer_hidden != hide)
    {
    gui.pointer_hidden = hide;
    if (gui.drawarea->window && gui.blank_pointer != NULL)
    {
        if (hide)
        gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer);
        else
#ifdef FEAT_MOUSESHAPE
        mch_set_mouse_shape(last_shape);
#else
        gdk_window_set_cursor(gui.drawarea->window, NULL);
#endif
    }
    }
}

#if defined(FEAT_MOUSESHAPE) || defined(PROTO)

/* Table for shape IDs.  Keep in sync with the mshape_names[] table in
 * misc2.c! */
static const int mshape_ids[] =
{
    GDK_LEFT_PTR,        /* arrow */
    GDK_CURSOR_IS_PIXMAP,    /* blank */
    GDK_XTERM,            /* beam */
    GDK_SB_V_DOUBLE_ARROW,    /* updown */
    GDK_SIZING,            /* udsizing */
    GDK_SB_H_DOUBLE_ARROW,    /* leftright */
    GDK_SIZING,            /* lrsizing */
    GDK_WATCH,            /* busy */
    GDK_X_CURSOR,        /* no */
    GDK_CROSSHAIR,        /* crosshair */
    GDK_HAND1,            /* hand1 */
    GDK_HAND2,            /* hand2 */
    GDK_PENCIL,            /* pencil */
    GDK_QUESTION_ARROW,        /* question */
    GDK_RIGHT_PTR,        /* right-arrow */
    GDK_CENTER_PTR,        /* up-arrow */
    GDK_LEFT_PTR        /* last one */
};

    void
mch_set_mouse_shape(int shape)
{
    int           id;
    GdkCursor       *c;

    if (gui.drawarea->window == NULL)
    return;

    if (shape == MSHAPE_HIDE || gui.pointer_hidden)
    gdk_window_set_cursor(gui.drawarea->window, gui.blank_pointer);
    else
    {
    if (shape >= MSHAPE_NUMBERED)
    {
        id = shape - MSHAPE_NUMBERED;
        if (id >= GDK_LAST_CURSOR)
        id = GDK_LEFT_PTR;
        else
        id &= ~1;    /* they are always even (why?) */
    }
    else
        id = mshape_ids[shape];
# ifdef HAVE_GTK_MULTIHEAD
    c = gdk_cursor_new_for_display(
        gtk_widget_get_display(gui.drawarea), id);
# else
    c = gdk_cursor_new(id);
# endif
    gdk_window_set_cursor(gui.drawarea->window, c);
    gdk_cursor_destroy(c); /* Unref, actually.  Bloody GTK+ 1. */
    }
    if (shape != MSHAPE_HIDE)
    last_shape = shape;
}
#endif /* FEAT_MOUSESHAPE */


#if defined(FEAT_SIGN_ICONS) || defined(PROTO)
/*
 * Signs are currently always 2 chars wide.  With GTK+ 2, the image will be
 * scaled down if the current font is not big enough, or scaled up if the image
 * size is less than 3/4 of the maximum sign size.  With GTK+ 1, the pixmap
 * will be cut off if the current font is not big enough, or centered if it's
 * too small.
 */
# define SIGN_WIDTH  (2 * gui.char_width)
# define SIGN_HEIGHT (gui.char_height)
# define SIGN_ASPECT ((double)SIGN_HEIGHT / (double)SIGN_WIDTH)

# ifdef HAVE_GTK2

    void
gui_mch_drawsign(int row, int col, int typenr)
{
    GdkPixbuf *sign;

    sign = (GdkPixbuf *)sign_get_image(typenr);

    if (sign != NULL && gui.drawarea != NULL && gui.drawarea->window != NULL)
    {
    int width;
    int height;
    int xoffset;
    int yoffset;
    int need_scale;

    width  = gdk_pixbuf_get_width(sign);
    height = gdk_pixbuf_get_height(sign);
    /*
     * Decide whether we need to scale.  Allow one pixel of border
     * width to be cut off, in order to avoid excessive scaling for
     * tiny differences in font size.
     */
    need_scale = (width > SIGN_WIDTH + 2
              || height > SIGN_HEIGHT + 2
              || (width < 3 * SIGN_WIDTH / 4
              && height < 3 * SIGN_HEIGHT / 4));
    if (need_scale)
    {
        double aspect;

        /* Keep the original aspect ratio */
        aspect = (double)height / (double)width;
        width  = (double)SIGN_WIDTH * SIGN_ASPECT / aspect;
        width  = MIN(width, SIGN_WIDTH);
        height = (double)width * aspect;

        /* This doesn't seem to be worth caching, and doing so
         * would complicate the code quite a bit. */
        sign = gdk_pixbuf_scale_simple(sign, width, height,
                       GDK_INTERP_BILINEAR);
        if (sign == NULL)
        return; /* out of memory */
    }

    /* The origin is the upper-left corner of the pixmap.  Therefore
     * these offset may become negative if the pixmap is smaller than
     * the 2x1 cells reserved for the sign icon. */
    xoffset = (width  - SIGN_WIDTH)  / 2;
    yoffset = (height - SIGN_HEIGHT) / 2;

    gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);

    gdk_draw_rectangle(gui.drawarea->window,
               gui.text_gc,
               TRUE,
               FILL_X(col),
               FILL_Y(row),
               SIGN_WIDTH,
               SIGN_HEIGHT);

#  if GTK_CHECK_VERSION(2,1,1)
    gdk_draw_pixbuf(gui.drawarea->window,
            NULL,
            sign,
            MAX(0, xoffset),
            MAX(0, yoffset),
            FILL_X(col) - MIN(0, xoffset),
            FILL_Y(row) - MIN(0, yoffset),
            MIN(width,  SIGN_WIDTH),
            MIN(height, SIGN_HEIGHT),
            GDK_RGB_DITHER_NORMAL,
            0, 0);
#  else
    gdk_pixbuf_render_to_drawable_alpha(sign,
                        gui.drawarea->window,
                        MAX(0, xoffset),
                        MAX(0, yoffset),
                        FILL_X(col) - MIN(0, xoffset),
                        FILL_Y(row) - MIN(0, yoffset),
                        MIN(width,    SIGN_WIDTH),
                        MIN(height, SIGN_HEIGHT),
                        GDK_PIXBUF_ALPHA_BILEVEL,
                        127,
                        GDK_RGB_DITHER_NORMAL,
                        0, 0);
#  endif
    if (need_scale)
        g_object_unref(sign);
    }
}

    void *
gui_mch_register_sign(char_u *signfile)
{
    if (signfile[0] != NUL && signfile[0] != '-' && gui.in_use)
    {
    GdkPixbuf   *sign;
    GError        *error = NULL;
    char_u        *message;

    sign = gdk_pixbuf_new_from_file((const char *)signfile, &error);

    if (error == NULL)
        return sign;

    message = (char_u *)error->message;

    if (message != NULL && input_conv.vc_type != CONV_NONE)
        message = string_convert(&input_conv, message, NULL);

    if (message != NULL)
    {
        /* The error message is already translated and will be more
         * descriptive than anything we could possibly do ourselves. */
        EMSG2("E255: %s", message);

        if (input_conv.vc_type != CONV_NONE)
        vim_free(message);
    }
    g_error_free(error);
    }

    return NULL;
}

    void
gui_mch_destroy_sign(void *sign)
{
    if (sign != NULL)
    g_object_unref(sign);
}

# else /* !HAVE_GTK2 */

typedef struct
{
    GdkPixmap *pixmap;
    GdkBitmap *mask;
}
signicon_T;

    void
gui_mch_drawsign(int row, int col, int typenr)
{
    signicon_T *sign;

    sign = (signicon_T *)sign_get_image(typenr);

    if (sign != NULL && sign->pixmap != NULL
    && gui.drawarea != NULL && gui.drawarea->window != NULL)
    {
    int width;
    int height;
    int xoffset;
    int yoffset;

    gdk_window_get_size(sign->pixmap, &width, &height);

    /* The origin is the upper-left corner of the pixmap.  Therefore
     * these offset may become negative if the pixmap is smaller than
     * the 2x1 cells reserved for the sign icon. */
    xoffset = (width  - SIGN_WIDTH)  / 2;
    yoffset = (height - SIGN_HEIGHT) / 2;

    gdk_gc_set_foreground(gui.text_gc, gui.bgcolor);

    gdk_draw_rectangle(gui.drawarea->window,
               gui.text_gc,
               TRUE,
               FILL_X(col),
               FILL_Y(row),
               SIGN_WIDTH,
               SIGN_HEIGHT);

    /* Set the clip mask for bilevel transparency */
    if (sign->mask != NULL)
    {
        gdk_gc_set_clip_origin(gui.text_gc,
                   FILL_X(col) - xoffset,
                   FILL_Y(row) - yoffset);
        gdk_gc_set_clip_mask(gui.text_gc, sign->mask);
    }

    gdk_draw_pixmap(gui.drawarea->window,
            gui.text_gc,
            sign->pixmap,
            MAX(0, xoffset),
            MAX(0, yoffset),
            FILL_X(col) - MIN(0, xoffset),
            FILL_Y(row) - MIN(0, yoffset),
            MIN(width,  SIGN_WIDTH),
            MIN(height, SIGN_HEIGHT));

    gdk_gc_set_clip_mask(gui.text_gc, NULL);
    }
}

    void *
gui_mch_register_sign(char_u *signfile)
{
    signicon_T *sign = NULL;

    if (signfile[0] != NUL && signfile[0] != '-'
        && gui.drawarea != NULL && gui.drawarea->window != NULL)
    {
    sign = (signicon_T *)alloc(sizeof(signicon_T));

    if (sign != NULL) /* NULL == OOM == "cannot really happen" */
    {
        sign->mask = NULL;
        sign->pixmap = gdk_pixmap_colormap_create_from_xpm(
            gui.drawarea->window, NULL,
            &sign->mask, NULL,
            (const char *)signfile);

        if (sign->pixmap == NULL)
        {
        vim_free(sign);
        sign = NULL;
        EMSG(_(e_signdata));
        }
    }
    }
    return sign;
}

    void
gui_mch_destroy_sign(void *sign)
{
    if (sign != NULL)
    {
    signicon_T *signicon = (signicon_T *)sign;

    if (signicon->pixmap != NULL)
        gdk_pixmap_unref(signicon->pixmap);
    if (signicon->mask != NULL)
        gdk_bitmap_unref(signicon->mask);

    vim_free(signicon);
    }
}
# endif /* !HAVE_GTK2 */

#endif /* FEAT_SIGN_ICONS */