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- /* vi:set ts=8 sts=4 sw=4:
- *
- * VIM - Vi IMproved by Bram Moolenaar
- * Visual Workshop integration by Gordon Prieur
- *
- * 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.
- */
-
- #include "vim.h"
-
- #if defined(FEAT_BEVAL) || defined(PROTO)
-
- #ifdef FEAT_GUI_GTK
- # include <gdk/gdkkeysyms.h>
- # include <gtk/gtk.h>
- #else
- # include <X11/keysym.h>
- # ifdef FEAT_GUI_MOTIF
- # include <Xm/PushB.h>
- # include <Xm/Separator.h>
- # include <Xm/List.h>
- # include <Xm/Label.h>
- # include <Xm/AtomMgr.h>
- # include <Xm/Protocols.h>
- # else
- /* Assume Athena */
- # include <X11/Shell.h>
- # include <X11/Xaw/Label.h>
- # endif
- #endif
-
- #include "gui_beval.h"
-
- #ifndef FEAT_GUI_GTK
- extern Widget vimShell;
-
- /*
- * Currently, we assume that there can be only one BalloonEval showing
- * on-screen at any given moment. This variable will hold the currently
- * showing BalloonEval or NULL if none is showing.
- */
- static BalloonEval *current_beval = NULL;
- #endif
-
- #ifdef FEAT_GUI_GTK
- static void addEventHandler __ARGS((GtkWidget *, BalloonEval *));
- static void removeEventHandler __ARGS((BalloonEval *));
- static gint target_event_cb __ARGS((GtkWidget *, GdkEvent *, gpointer));
- static gint mainwin_event_cb __ARGS((GtkWidget *, GdkEvent *, gpointer));
- static void pointer_event __ARGS((BalloonEval *, int, int, unsigned));
- static void key_event __ARGS((BalloonEval *, unsigned, int));
- static gint timeout_cb __ARGS((gpointer));
- static gint balloon_expose_event_cb __ARGS((GtkWidget *, GdkEventExpose *, gpointer));
- # ifndef HAVE_GTK2
- static void balloon_draw_cb __ARGS((GtkWidget *, GdkRectangle *, gpointer));
- # endif
- #else
- static void addEventHandler __ARGS((Widget, BalloonEval *));
- static void removeEventHandler __ARGS((BalloonEval *));
- static void pointerEventEH __ARGS((Widget, XtPointer, XEvent *, Boolean *));
- static void pointerEvent __ARGS((BalloonEval *, XEvent *));
- static void timerRoutine __ARGS((XtPointer, XtIntervalId *));
- #endif
- static void cancelBalloon __ARGS((BalloonEval *));
- static void requestBalloon __ARGS((BalloonEval *));
- static void drawBalloon __ARGS((BalloonEval *));
- static void undrawBalloon __ARGS((BalloonEval *beval));
- static void createBalloonEvalWindow __ARGS((BalloonEval *));
-
-
-
- /*
- * Create a balloon-evaluation area for a Widget.
- * There can be either a "mesg" for a fixed string or "mesgCB" to generate a
- * message by calling this callback function.
- * When "mesg" is not NULL it must remain valid for as long as the balloon is
- * used. It is not freed here.
- * Returns a pointer to the resulting object (NULL when out of memory).
- */
- BalloonEval *
- gui_mch_create_beval_area(target, mesg, mesgCB, clientData)
- void *target;
- char_u *mesg;
- void (*mesgCB)__ARGS((BalloonEval *, int));
- void *clientData;
- {
- #ifndef FEAT_GUI_GTK
- char *display_name; /* get from gui.dpy */
- int screen_num;
- char *p;
- #endif
- BalloonEval *beval;
-
- if (mesg != NULL && mesgCB != NULL)
- {
- EMSG(_("E232: Cannot create BalloonEval with both message and callback"));
- return NULL;
- }
-
- beval = (BalloonEval *)alloc(sizeof(BalloonEval));
- if (beval != NULL)
- {
- #ifdef FEAT_GUI_GTK
- beval->target = GTK_WIDGET(target);
- beval->balloonShell = NULL;
- beval->timerID = 0;
- #else
- beval->target = (Widget)target;
- beval->balloonShell = NULL;
- beval->timerID = (XtIntervalId)NULL;
- beval->appContext = XtWidgetToApplicationContext((Widget)target);
- #endif
- beval->showState = ShS_NEUTRAL;
- beval->x = 0;
- beval->y = 0;
- beval->msg = mesg;
- beval->msgCB = mesgCB;
- beval->clientData = clientData;
-
- /*
- * Set up event handler which will keep its eyes on the pointer,
- * and when the pointer rests in a certain spot for a given time
- * interval, show the beval.
- */
- addEventHandler(beval->target, beval);
- createBalloonEvalWindow(beval);
-
- #ifndef FEAT_GUI_GTK
- /*
- * Now create and save the screen width and height. Used in drawing.
- */
- display_name = DisplayString(gui.dpy);
- p = strrchr(display_name, '.');
- if (p != NULL)
- screen_num = atoi(++p);
- else
- screen_num = 0;
- beval->screen_width = DisplayWidth(gui.dpy, screen_num);
- beval->screen_height = DisplayHeight(gui.dpy, screen_num);
- #endif
- }
-
- return beval;
- }
-
- #if defined(FEAT_BEVAL_TIP) || defined(PROTO)
- /*
- * Destroy a ballon-eval and free its associated memory.
- */
- void
- gui_mch_destroy_beval_area(beval)
- BalloonEval *beval;
- {
- cancelBalloon(beval);
- removeEventHandler(beval);
- /* Children will automatically be destroyed */
- # ifdef FEAT_GUI_GTK
- gtk_widget_destroy(beval->balloonShell);
- # else
- XtDestroyWidget(beval->balloonShell);
- # endif
- vim_free(beval);
- }
- #endif
-
- void
- gui_mch_enable_beval_area(beval)
- BalloonEval *beval;
- {
- if (beval != NULL)
- addEventHandler(beval->target, beval);
- }
-
- void
- gui_mch_disable_beval_area(beval)
- BalloonEval *beval;
- {
- if (beval != NULL)
- removeEventHandler(beval);
- }
-
- #if defined(FEAT_BEVAL_TIP) || defined(PROTO)
- /*
- * This function returns the BalloonEval * associated with the currently
- * displayed tooltip. Returns NULL if there is no tooltip currently showing.
- *
- * Assumption: Only one tooltip can be shown at a time.
- */
- BalloonEval *
- gui_mch_currently_showing_beval()
- {
- return current_beval;
- }
- #endif
-
- #if defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) || defined(PROTO)
- /*
- * Get the text and position to be evaluated for "beval".
- * When "usingNetbeans" is set the returned text is in allocated memory.
- * Returns OK or FAIL.
- */
- int
- gui_mch_get_beval_info(beval, filename, line, text, idx)
- BalloonEval *beval;
- char_u **filename;
- int *line;
- char_u **text;
- int *idx;
- {
- win_T *wp;
- int row, col;
- char_u *lbuf;
- linenr_T lnum;
-
- *text = NULL;
- row = Y_2_ROW(beval->y);
- col = X_2_COL(beval->x);
- wp = mouse_find_win(&row, &col);
- if (wp != NULL && row < wp->w_height && col < W_WIDTH(wp))
- {
- /* Found a window and the cursor is in the text. Now find the line
- * number. */
- if (!mouse_comp_pos(wp, &row, &col, &lnum))
- {
- /* Not past end of the file. */
- lbuf = ml_get_buf(wp->w_buffer, lnum, FALSE);
- if (col <= win_linetabsize(wp, lbuf, (colnr_T)MAXCOL))
- {
- /* Not past end of line. */
- # ifdef FEAT_NETBEANS_INTG
- if (usingNetbeans)
- {
- /* For Netbeans we get the relevant part of the line
- * instead of the whole line. */
- int len;
- pos_T *spos = NULL, *epos = NULL;
-
- if (VIsual_active)
- {
- if (lt(VIsual, curwin->w_cursor))
- {
- spos = &VIsual;
- epos = &curwin->w_cursor;
- }
- else
- {
- spos = &curwin->w_cursor;
- epos = &VIsual;
- }
- }
-
- col = vcol2col(wp, lnum, col) - 1;
-
- if (VIsual_active
- && wp->w_buffer == curwin->w_buffer
- && (lnum == spos->lnum
- ? col >= spos->col
- : lnum > spos->lnum)
- && (lnum == epos->lnum
- ? col <= epos->col
- : lnum < epos->lnum))
- {
- /* Visual mode and pointing to the line with the
- * Visual selection: return selected text, with a
- * maximum of one line. */
- if (spos->lnum != epos->lnum || spos->col == epos->col)
- return FAIL;
-
- lbuf = ml_get_buf(curwin->w_buffer, VIsual.lnum, FALSE);
- lbuf = vim_strnsave(lbuf + spos->col,
- epos->col - spos->col + (*p_sel != 'e'));
- lnum = spos->lnum;
- col = spos->col;
- }
- else
- {
- /* Find the word under the cursor. */
- ++emsg_off;
- len = find_ident_at_pos(wp, lnum, (colnr_T)col, &lbuf,
- FIND_IDENT + FIND_STRING);
- --emsg_off;
- if (len == 0)
- return FAIL;
- lbuf = vim_strnsave(lbuf, len);
- }
- }
- # endif
- *filename = wp->w_buffer->b_ffname;
- *line = (int)lnum;
- *text = lbuf;
- *idx = col;
- beval->ts = wp->w_buffer->b_p_ts;
- return OK;
- }
- }
- }
-
- return FAIL;
- }
-
- /*
- * Show a balloon with "mesg".
- */
- void
- gui_mch_post_balloon(beval, mesg)
- BalloonEval *beval;
- char_u *mesg;
- {
- beval->msg = mesg;
- if (mesg != NULL)
- drawBalloon(beval);
- else
- undrawBalloon(beval);
- }
- #endif
-
- #if defined(FEAT_BEVAL_TIP) || defined(PROTO)
- /*
- * Hide the given balloon.
- */
- void
- gui_mch_unpost_balloon(beval)
- BalloonEval *beval;
- {
- undrawBalloon(beval);
- }
- #endif
-
- #ifdef FEAT_GUI_GTK
- /*
- * We can unconditionally use ANSI-style prototypes here since
- * GTK+ requires an ANSI C compiler anyway.
- */
- static void
- addEventHandler(GtkWidget *target, BalloonEval *beval)
- {
- /*
- * Connect to the generic "event" signal instead of the individual
- * signals for each event type, because the former is emitted earlier.
- * This allows us to catch events independently of the signal handlers
- * in gui_gtk_x11.c.
- */
- /* Should use GTK_OBJECT() here, but that causes a lint warning... */
- gtk_signal_connect((GtkObject*)(target), "event",
- GTK_SIGNAL_FUNC(target_event_cb),
- beval);
- /*
- * Nasty: Key press events go to the main window thus the drawing area
- * will never see them. This means we have to connect to the main window
- * as well in order to catch those events.
- */
- if (gtk_socket_id == 0 && gui.mainwin != NULL
- && gtk_widget_is_ancestor(target, gui.mainwin))
- {
- gtk_signal_connect((GtkObject*)(gui.mainwin), "event",
- GTK_SIGNAL_FUNC(mainwin_event_cb),
- beval);
- }
- }
-
- static void
- removeEventHandler(BalloonEval *beval)
- {
- gtk_signal_disconnect_by_func((GtkObject*)(beval->target),
- GTK_SIGNAL_FUNC(target_event_cb),
- beval);
-
- if (gtk_socket_id == 0 && gui.mainwin != NULL
- && gtk_widget_is_ancestor(beval->target, gui.mainwin))
- {
- gtk_signal_disconnect_by_func((GtkObject*)(gui.mainwin),
- GTK_SIGNAL_FUNC(mainwin_event_cb),
- beval);
- }
- }
-
- static gint
- target_event_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
- {
- BalloonEval *beval = (BalloonEval *)data;
-
- switch (event->type)
- {
- case GDK_ENTER_NOTIFY:
- pointer_event(beval, (int)event->crossing.x,
- (int)event->crossing.y,
- event->crossing.state);
- break;
- case GDK_MOTION_NOTIFY:
- if (event->motion.is_hint)
- {
- int x;
- int y;
- GdkModifierType state;
- /*
- * GDK_POINTER_MOTION_HINT_MASK is set, thus we cannot obtain
- * the coordinates from the GdkEventMotion struct directly.
- */
- gdk_window_get_pointer(widget->window, &x, &y, &state);
- pointer_event(beval, x, y, (unsigned int)state);
- }
- else
- {
- pointer_event(beval, (int)event->motion.x,
- (int)event->motion.y,
- event->motion.state);
- }
- break;
- case GDK_LEAVE_NOTIFY:
- /*
- * Ignore LeaveNotify events that are not "normal".
- * Apparently we also get it when somebody else grabs focus.
- */
- if (event->crossing.mode == GDK_CROSSING_NORMAL)
- cancelBalloon(beval);
- break;
- case GDK_BUTTON_PRESS:
- # ifdef HAVE_GTK2
- case GDK_SCROLL:
- # endif
- cancelBalloon(beval);
- break;
- case GDK_KEY_PRESS:
- key_event(beval, event->key.keyval, TRUE);
- break;
- case GDK_KEY_RELEASE:
- key_event(beval, event->key.keyval, FALSE);
- break;
- default:
- break;
- }
-
- return FALSE; /* continue emission */
- }
-
- /*ARGSUSED*/
- static gint
- mainwin_event_cb(GtkWidget *widget, GdkEvent *event, gpointer data)
- {
- BalloonEval *beval = (BalloonEval *)data;
-
- switch (event->type)
- {
- case GDK_KEY_PRESS:
- key_event(beval, event->key.keyval, TRUE);
- break;
- case GDK_KEY_RELEASE:
- key_event(beval, event->key.keyval, FALSE);
- break;
- default:
- break;
- }
-
- return FALSE; /* continue emission */
- }
-
- static void
- pointer_event(BalloonEval *beval, int x, int y, unsigned state)
- {
- int distance;
-
- distance = ABS(x - beval->x) + ABS(y - beval->y);
-
- if (distance > 4)
- {
- /*
- * Moved out of the balloon location: cancel it.
- * Remember button state
- */
- beval->state = state;
- cancelBalloon(beval);
-
- /* Mouse buttons are pressed - no balloon now */
- if (!(state & ((int)GDK_BUTTON1_MASK | (int)GDK_BUTTON2_MASK
- | (int)GDK_BUTTON3_MASK)))
- {
- beval->x = x;
- beval->y = y;
-
- if (state & (int)GDK_MOD1_MASK)
- {
- /*
- * Alt is pressed -- enter super-evaluate-mode,
- * where there is no time delay
- */
- if (beval->msgCB != NULL)
- {
- beval->showState = ShS_PENDING;
- (*beval->msgCB)(beval, state);
- }
- }
- else
- {
- beval->timerID = gtk_timeout_add((guint32)p_bdlay,
- &timeout_cb, beval);
- }
- }
- }
- }
-
- static void
- key_event(BalloonEval *beval, unsigned keyval, int is_keypress)
- {
- if (beval->showState == ShS_SHOWING && beval->msgCB != NULL)
- {
- switch (keyval)
- {
- case GDK_Shift_L:
- case GDK_Shift_R:
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, (is_keypress)
- ? (int)GDK_SHIFT_MASK : 0);
- break;
- case GDK_Control_L:
- case GDK_Control_R:
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, (is_keypress)
- ? (int)GDK_CONTROL_MASK : 0);
- break;
- default:
- cancelBalloon(beval);
- break;
- }
- }
- else
- cancelBalloon(beval);
- }
-
- static gint
- timeout_cb(gpointer data)
- {
- BalloonEval *beval = (BalloonEval *)data;
-
- beval->timerID = 0;
- /*
- * If the timer event happens then the mouse has stopped long enough for
- * a request to be started. The request will only send to the debugger if
- * there the mouse is pointing at real data.
- */
- requestBalloon(beval);
-
- return FALSE; /* don't call me again */
- }
-
- /*ARGSUSED2*/
- static gint
- balloon_expose_event_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
- {
- gtk_paint_flat_box(widget->style, widget->window,
- GTK_STATE_NORMAL, GTK_SHADOW_OUT,
- &event->area, widget, "tooltip",
- 0, 0, -1, -1);
-
- return FALSE; /* continue emission */
- }
-
- # ifndef HAVE_GTK2
- /*ARGSUSED2*/
- static void
- balloon_draw_cb(GtkWidget *widget, GdkRectangle *area, gpointer data)
- {
- GtkWidget *child;
- GdkRectangle child_area;
-
- gtk_paint_flat_box(widget->style, widget->window,
- GTK_STATE_NORMAL, GTK_SHADOW_OUT,
- area, widget, "tooltip",
- 0, 0, -1, -1);
-
- child = GTK_BIN(widget)->child;
-
- if (gtk_widget_intersect(child, area, &child_area))
- gtk_widget_draw(child, &child_area);
- }
- # endif
-
- #else /* !FEAT_GUI_GTK */
-
- static void
- addEventHandler(target, beval)
- Widget target;
- BalloonEval *beval;
- {
- XtAddEventHandler(target,
- PointerMotionMask | EnterWindowMask |
- LeaveWindowMask | ButtonPressMask | KeyPressMask |
- KeyReleaseMask,
- False,
- pointerEventEH, (XtPointer)beval);
- }
-
- static void
- removeEventHandler(beval)
- BalloonEval *beval;
- {
- XtRemoveEventHandler(beval->target,
- PointerMotionMask | EnterWindowMask |
- LeaveWindowMask | ButtonPressMask | KeyPressMask |
- KeyReleaseMask,
- False,
- pointerEventEH, (XtPointer)beval);
- }
-
-
- /*
- * The X event handler. All it does is call the real event handler.
- */
- /*ARGSUSED*/
- static void
- pointerEventEH(w, client_data, event, unused)
- Widget w;
- XtPointer client_data;
- XEvent *event;
- Boolean *unused;
- {
- BalloonEval *beval = (BalloonEval *)client_data;
- pointerEvent(beval, event);
- }
-
-
- /*
- * The real event handler. Called by pointerEventEH() whenever an event we are
- * interested in ocurrs.
- */
-
- static void
- pointerEvent(beval, event)
- BalloonEval *beval;
- XEvent *event;
- {
- Position distance; /* a measure of how much the ponter moved */
- Position delta; /* used to compute distance */
-
- switch (event->type)
- {
- case EnterNotify:
- case MotionNotify:
- delta = event->xmotion.x - beval->x;
- if (delta < 0)
- delta = -delta;
- distance = delta;
- delta = event->xmotion.y - beval->y;
- if (delta < 0)
- delta = -delta;
- distance += delta;
- if (distance > 4)
- {
- /*
- * Moved out of the balloon location: cancel it.
- * Remember button state
- */
- beval->state = event->xmotion.state;
- if (beval->state & (Button1Mask|Button2Mask|Button3Mask))
- {
- /* Mouse buttons are pressed - no balloon now */
- cancelBalloon(beval);
- }
- else if (beval->state & (Mod1Mask|Mod2Mask|Mod3Mask))
- {
- /*
- * Alt is pressed -- enter super-evaluate-mode,
- * where there is no time delay
- */
- beval->x = event->xmotion.x;
- beval->y = event->xmotion.y;
- beval->x_root = event->xmotion.x_root;
- beval->y_root = event->xmotion.y_root;
- cancelBalloon(beval);
- if (beval->msgCB != NULL)
- {
- beval->showState = ShS_PENDING;
- (*beval->msgCB)(beval, beval->state);
- }
- }
- else
- {
- beval->x = event->xmotion.x;
- beval->y = event->xmotion.y;
- beval->x_root = event->xmotion.x_root;
- beval->y_root = event->xmotion.y_root;
- cancelBalloon(beval);
- beval->timerID = XtAppAddTimeOut( beval->appContext,
- (long_u)p_bdlay, timerRoutine, beval);
- }
- }
- break;
-
- /*
- * Motif and Athena version: Keystrokes will be caught by the
- * "textArea" widget, and handled in gui_x11_key_hit_cb().
- */
- case KeyPress:
- if (beval->showState == ShS_SHOWING && beval->msgCB != NULL)
- {
- Modifiers modifier;
- KeySym keysym;
-
- XtTranslateKeycode(gui.dpy,
- event->xkey.keycode, event->xkey.state,
- &modifier, &keysym);
- if (keysym == XK_Shift_L || keysym == XK_Shift_R)
- {
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, ShiftMask);
- }
- else if (keysym == XK_Control_L || keysym == XK_Control_R)
- {
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, ControlMask);
- }
- else
- cancelBalloon(beval);
- }
- else
- cancelBalloon(beval);
- break;
-
- case KeyRelease:
- if (beval->showState == ShS_SHOWING && beval->msgCB != NULL)
- {
- Modifiers modifier;
- KeySym keysym;
-
- XtTranslateKeycode(gui.dpy, event->xkey.keycode,
- event->xkey.state, &modifier, &keysym);
- if ((keysym == XK_Shift_L) || (keysym == XK_Shift_R)) {
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, 0);
- }
- else if ((keysym == XK_Control_L) || (keysym == XK_Control_R))
- {
- beval->showState = ShS_UPDATE_PENDING;
- (*beval->msgCB)(beval, 0);
- }
- else
- cancelBalloon(beval);
- }
- else
- cancelBalloon(beval);
- break;
-
- case LeaveNotify:
- /* Ignore LeaveNotify events that are not "normal".
- * Apparently we also get it when somebody else grabs focus.
- * Happens for me every two seconds (some clipboard tool?) */
- if (event->xcrossing.mode == NotifyNormal)
- cancelBalloon(beval);
- break;
-
- case ButtonPress:
- cancelBalloon(beval);
- break;
-
- default:
- break;
- }
- }
-
- /*ARGSUSED*/
- static void
- timerRoutine(dx, id)
- XtPointer dx;
- XtIntervalId *id;
- {
- BalloonEval *beval = (BalloonEval *)dx;
-
- beval->timerID = (XtIntervalId)NULL;
-
- /*
- * If the timer event happens then the mouse has stopped long enough for
- * a request to be started. The request will only send to the debugger if
- * there the mouse is pointing at real data.
- */
- requestBalloon(beval);
- }
-
- #endif /* !FEAT_GUI_GTK */
-
- static void
- requestBalloon(beval)
- BalloonEval *beval;
- {
- if (beval->showState != ShS_PENDING)
- {
- /* Determine the beval to display */
- if (beval->msgCB != NULL)
- {
- beval->showState = ShS_PENDING;
- (*beval->msgCB)(beval, beval->state);
- }
- else if (beval->msg != NULL)
- drawBalloon(beval);
- }
- }
-
- #ifdef FEAT_GUI_GTK
-
- # ifdef HAVE_GTK2
- /*
- * Convert the string to UTF-8 if 'encoding' is not "utf-8".
- * Replace any non-printable characters and invalid bytes sequences with
- * "^X" or "<xx>" escapes, and apply SpecialKey highlighting to them.
- * TAB and NL are passed through unscathed.
- */
- # define IS_NONPRINTABLE(c) (((c) < 0x20 && (c) != TAB && (c) != NL) \
- || (c) == DEL)
- static void
- set_printable_label_text(GtkLabel *label, char_u *msg)
- {
- char_u *convbuf = NULL;
- char_u *buf;
- char_u *p;
- char_u *pdest;
- unsigned int len;
- int charlen;
- int uc;
- PangoAttrList *attr_list;
-
- /* Convert to UTF-8 if it isn't already */
- if (output_conv.vc_type != CONV_NONE)
- {
- convbuf = string_convert(&output_conv, msg, NULL);
- if (convbuf != NULL)
- msg = convbuf;
- }
-
- /* First let's see how much we need to allocate */
- len = 0;
- for (p = msg; *p != NUL; p += charlen)
- {
- if ((*p & 0x80) == 0) /* be quick for ASCII */
- {
- charlen = 1;
- len += IS_NONPRINTABLE(*p) ? 2 : 1; /* nonprintable: ^X */
- }
- else
- {
- charlen = utf_ptr2len_check(p);
- uc = utf_ptr2char(p);
-
- if (charlen != utf_char2len(uc))
- charlen = 1; /* reject overlong sequences */
-
- if (charlen == 1 || uc < 0xa0) /* illegal byte or */
- len += 4; /* control char: <xx> */
- else if (!utf_printable(uc))
- /* Note: we assume here that utf_printable() doesn't
- * care about characters outside the BMP. */
- len += 6; /* nonprintable: <xxxx> */
- else
- len += charlen;
- }
- }
-
- attr_list = pango_attr_list_new();
- buf = alloc(len + 1);
-
- /* Now go for the real work */
- if (buf != NULL)
- {
- attrentry_T *aep;
- PangoAttribute *attr;
- guicolor_T pixel;
- GdkColor color = { 0, 0, 0, 0 };
-
- /* Look up the RGB values of the SpecialKey foreground color. */
- aep = syn_gui_attr2entry(hl_attr(HLF_8));
- pixel = (aep != NULL) ? aep->ae_u.gui.fg_color : INVALCOLOR;
- if (pixel != INVALCOLOR)
- gdk_colormap_query_color(gtk_widget_get_colormap(gui.drawarea),
- (unsigned long)pixel, &color);
-
- pdest = buf;
- p = msg;
- while (*p != NUL)
- {
- /* Be quick for ASCII */
- if ((*p & 0x80) == 0 && !IS_NONPRINTABLE(*p))
- {
- *pdest++ = *p++;
- }
- else
- {
- charlen = utf_ptr2len_check(p);
- uc = utf_ptr2char(p);
-
- if (charlen != utf_char2len(uc))
- charlen = 1; /* reject overlong sequences */
-
- if (charlen == 1 || uc < 0xa0 || !utf_printable(uc))
- {
- int outlen;
-
- /* Careful: we can't just use transchar_byte() here,
- * since 'encoding' is not necessarily set to "utf-8". */
- if (*p & 0x80 && charlen == 1)
- {
- transchar_hex(pdest, *p); /* <xx> */
- outlen = 4;
- }
- else if (uc >= 0x80)
- {
- /* Note: we assume here that utf_printable() doesn't
- * care about characters outside the BMP. */
- transchar_hex(pdest, uc); /* <xx> or <xxxx> */
- outlen = (uc < 0x100) ? 4 : 6;
- }
- else
- {
- transchar_nonprint(pdest, *p); /* ^X */
- outlen = 2;
- }
- if (pixel != INVALCOLOR)
- {
- attr = pango_attr_foreground_new(
- color.red, color.green, color.blue);
- attr->start_index = pdest - buf;
- attr->end_index = pdest - buf + outlen;
- pango_attr_list_insert(attr_list, attr);
- }
- pdest += outlen;
- p += charlen;
- }
- else
- {
- do
- *pdest++ = *p++;
- while (--charlen != 0);
- }
- }
- }
- *pdest = NUL;
- }
-
- vim_free(convbuf);
-
- gtk_label_set_text(label, (const char *)buf);
- vim_free(buf);
-
- gtk_label_set_attributes(label, attr_list);
- pango_attr_list_unref(attr_list);
- }
- # undef IS_NONPRINTABLE
- # endif /* HAVE_GTK2 */
-
- /*
- * Draw a balloon.
- */
- static void
- drawBalloon(BalloonEval *beval)
- {
- if (beval->msg != NULL)
- {
- GtkRequisition requisition;
- int screen_w;
- int screen_h;
- int x;
- int y;
- int x_offset = EVAL_OFFSET_X;
- int y_offset = EVAL_OFFSET_Y;
- # ifdef HAVE_GTK2
- PangoLayout *layout;
- # endif
- # ifdef HAVE_GTK_MULTIHEAD
- GdkScreen *screen;
-
- screen = gtk_widget_get_screen(beval->target);
- gtk_window_set_screen(GTK_WINDOW(beval->balloonShell), screen);
- screen_w = gdk_screen_get_width(screen);
- screen_h = gdk_screen_get_height(screen);
- # else
- screen_w = gdk_screen_width();
- screen_h = gdk_screen_height();
- # endif
- gtk_widget_ensure_style(beval->balloonShell);
- gtk_widget_ensure_style(beval->balloonLabel);
-
- # ifdef HAVE_GTK2
- set_printable_label_text(GTK_LABEL(beval->balloonLabel), beval->msg);
- /*
- * Dirty trick: Enable wrapping mode on the label's layout behind its
- * back. This way GtkLabel won't try to constrain the wrap width to a
- * builtin maximum value of about 65 Latin characters.
- */
- layout = gtk_label_get_layout(GTK_LABEL(beval->balloonLabel));
- # ifdef PANGO_WRAP_WORD_CHAR
- pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
- # else
- pango_layout_set_wrap(layout, PANGO_WRAP_WORD);
- # endif
- pango_layout_set_width(layout,
- /* try to come up with some reasonable width */
- PANGO_SCALE * CLAMP(gui.num_cols * gui.char_width,
- screen_w / 2,
- MAX(20, screen_w - 20)));
-
- /* Calculate the balloon's width and height. */
- gtk_widget_size_request(beval->balloonShell, &requisition);
- # else
- gtk_label_set_line_wrap(GTK_LABEL(beval->balloonLabel), FALSE);
- gtk_label_set_text(GTK_LABEL(beval->balloonLabel),
- (const char *)beval->msg);
-
- /* Calculate the balloon's width and height. */
- gtk_widget_size_request(beval->balloonShell, &requisition);
- /*
- * Unfortunately, the dirty trick used above to get around the builtin
- * maximum wrap width of GtkLabel doesn't work with GTK+ 1. Thus if
- * and only if it's absolutely necessary to avoid drawing off-screen,
- * do enable wrapping now and recalculate the size request.
- */
- if (requisition.width > screen_w)
- {
- gtk_label_set_line_wrap(GTK_LABEL(beval->balloonLabel), TRUE);
- gtk_widget_size_request(beval->balloonShell, &requisition);
- }
- # endif
-
- /* Compute position of the balloon area */
- gdk_window_get_origin(beval->target->window, &x, &y);
- x += beval->x;
- y += beval->y;
-
- /* Get out of the way of the mouse pointer */
- if (x + x_offset + requisition.width > screen_w)
- y_offset += 15;
- if (y + y_offset + requisition.height > screen_h)
- y_offset = -requisition.height - EVAL_OFFSET_Y;
-
- /* Sanitize values */
- x = CLAMP(x + x_offset, 0, MAX(0, screen_w - requisition.width));
- y = CLAMP(y + y_offset, 0, MAX(0, screen_h - requisition.height));
-
- /* Show the balloon */
- gtk_widget_set_uposition(beval->balloonShell, x, y);
- gtk_widget_show(beval->balloonShell);
-
- beval->showState = ShS_SHOWING;
- }
- }
-
- /*
- * Undraw a balloon.
- */
- static void
- undrawBalloon(BalloonEval *beval)
- {
- if (beval->balloonShell != NULL)
- gtk_widget_hide(beval->balloonShell);
- beval->showState = ShS_NEUTRAL;
- }
-
- static void
- cancelBalloon(BalloonEval *beval)
- {
- if (beval->showState == ShS_SHOWING
- || beval->showState == ShS_UPDATE_PENDING)
- undrawBalloon(beval);
-
- if (beval->timerID != 0)
- {
- gtk_timeout_remove(beval->timerID);
- beval->timerID = 0;
- }
- beval->showState = ShS_NEUTRAL;
- }
-
- static void
- createBalloonEvalWindow(BalloonEval *beval)
- {
- beval->balloonShell = gtk_window_new(GTK_WINDOW_POPUP);
-
- gtk_widget_set_app_paintable(beval->balloonShell, TRUE);
- gtk_window_set_policy(GTK_WINDOW(beval->balloonShell), FALSE, FALSE, TRUE);
- gtk_widget_set_name(beval->balloonShell, "gtk-tooltips");
- gtk_container_border_width(GTK_CONTAINER(beval->balloonShell), 4);
-
- gtk_signal_connect((GtkObject*)(beval->balloonShell), "expose_event",
- GTK_SIGNAL_FUNC(balloon_expose_event_cb), NULL);
- # ifndef HAVE_GTK2
- gtk_signal_connect((GtkObject*)(beval->balloonShell), "draw",
- GTK_SIGNAL_FUNC(balloon_draw_cb), NULL);
- # endif
- beval->balloonLabel = gtk_label_new(NULL);
-
- gtk_label_set_line_wrap(GTK_LABEL(beval->balloonLabel), FALSE);
- gtk_label_set_justify(GTK_LABEL(beval->balloonLabel), GTK_JUSTIFY_LEFT);
- gtk_misc_set_alignment(GTK_MISC(beval->balloonLabel), 0.5f, 0.5f);
- gtk_widget_set_name(beval->balloonLabel, "vim-balloon-label");
- gtk_widget_show(beval->balloonLabel);
-
- gtk_container_add(GTK_CONTAINER(beval->balloonShell), beval->balloonLabel);
- }
-
- #else /* !FEAT_GUI_GTK */
-
- /*
- * Draw a balloon.
- */
- static void
- drawBalloon(beval)
- BalloonEval *beval;
- {
- Dimension w;
- Dimension h;
- Position tx;
- Position ty;
-
- if (beval->msg != NULL)
- {
- /* Show the Balloon */
-
- /* Calculate the label's width and height */
- #ifdef FEAT_GUI_MOTIF
- XmString s;
-
- /* For the callback function we parse NL characters to create a
- * multi-line label. This doesn't work for all languages, but
- * XmStringCreateLocalized() doesn't do multi-line labels... */
- if (beval->msgCB != NULL)
- s = XmStringCreateLtoR((char *)beval->msg, XmFONTLIST_DEFAULT_TAG);
- else
- s = XmStringCreateLocalized((char *)beval->msg);
- {
- XmFontList fl;
-
- fl = gui_motif_fontset2fontlist(&gui.tooltip_fontset);
- if (fl != NULL)
- {
- XmStringExtent(fl, s, &w, &h);
- XmFontListFree(fl);
- }
- }
- w += gui.border_offset << 1;
- h += gui.border_offset << 1;
- XtVaSetValues(beval->balloonLabel, XmNlabelString, s, NULL);
- XmStringFree(s);
- #else /* Athena */
- /* Assume XtNinternational == True */
- XFontSet fset;
- XFontSetExtents *ext;
-
- XtVaGetValues(beval->balloonLabel, XtNfontSet, &fset, NULL);
- ext = XExtentsOfFontSet(fset);
- h = ext->max_ink_extent.height;
- w = XmbTextEscapement(fset,
- (char *)beval->msg,
- (int)STRLEN(beval->msg));
- w += gui.border_offset << 1;
- h += gui.border_offset << 1;
- XtVaSetValues(beval->balloonLabel, XtNlabel, beval->msg, NULL);
- #endif
-
- /* Compute position of the balloon area */
- tx = beval->x_root + EVAL_OFFSET_X;
- ty = beval->y_root + EVAL_OFFSET_Y;
- if ((tx + w) > beval->screen_width)
- tx = beval->screen_width - w;
- if ((ty + h) > beval->screen_height)
- ty = beval->screen_height - h;
- #ifdef FEAT_GUI_MOTIF
- XtVaSetValues(beval->balloonShell,
- XmNx, tx,
- XmNy, ty,
- NULL);
- #else
- /* Athena */
- XtVaSetValues(beval->balloonShell,
- XtNx, tx,
- XtNy, ty,
- NULL);
- #endif
-
- XtPopup(beval->balloonShell, XtGrabNone);
-
- beval->showState = ShS_SHOWING;
-
- current_beval = beval;
- }
- }
-
- /*
- * Undraw a balloon.
- */
- static void
- undrawBalloon(beval)
- BalloonEval *beval;
- {
- if (beval->balloonShell != (Widget)0)
- XtPopdown(beval->balloonShell);
- beval->showState = ShS_NEUTRAL;
-
- current_beval = NULL;
- }
-
- static void
- cancelBalloon(beval)
- BalloonEval *beval;
- {
- if (beval->showState == ShS_SHOWING
- || beval->showState == ShS_UPDATE_PENDING)
- undrawBalloon(beval);
-
- if (beval->timerID != (XtIntervalId)NULL)
- {
- XtRemoveTimeOut(beval->timerID);
- beval->timerID = (XtIntervalId)NULL;
- }
- beval->showState = ShS_NEUTRAL;
- }
-
-
- static void
- createBalloonEvalWindow(beval)
- BalloonEval *beval;
- {
- Arg args[12];
- int n;
-
- n = 0;
- #ifdef FEAT_GUI_MOTIF
- XtSetArg(args[n], XmNallowShellResize, True); n++;
- beval->balloonShell = XtAppCreateShell("balloonEval", "BalloonEval",
- overrideShellWidgetClass, gui.dpy, args, n);
- #else
- /* Athena */
- XtSetArg(args[n], XtNallowShellResize, True); n++;
- beval->balloonShell = XtAppCreateShell("balloonEval", "BalloonEval",
- overrideShellWidgetClass, gui.dpy, args, n);
- #endif
-
- n = 0;
- #ifdef FEAT_GUI_MOTIF
- {
- XmFontList fl;
-
- fl = gui_motif_fontset2fontlist(&gui.tooltip_fontset);
- XtSetArg(args[n], XmNforeground, gui.tooltip_fg_pixel); n++;
- XtSetArg(args[n], XmNbackground, gui.tooltip_bg_pixel); n++;
- XtSetArg(args[n], XmNfontList, fl); n++;
- XtSetArg(args[n], XmNalignment, XmALIGNMENT_BEGINNING); n++;
- beval->balloonLabel = XtCreateManagedWidget("balloonLabel",
- xmLabelWidgetClass, beval->balloonShell, args, n);
- }
- #else /* FEAT_GUI_ATHENA */
- XtSetArg(args[n], XtNforeground, gui.tooltip_fg_pixel); n++;
- XtSetArg(args[n], XtNbackground, gui.tooltip_bg_pixel); n++;
- XtSetArg(args[n], XtNinternational, True); n++;
- XtSetArg(args[n], XtNfontSet, gui.tooltip_fontset); n++;
- beval->balloonLabel = XtCreateManagedWidget("balloonLabel",
- labelWidgetClass, beval->balloonShell, args, n);
- #endif
- }
-
- #endif /* !FEAT_GUI_GTK */
-
- #endif /* FEAT_BEVAL */
-