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- /* X Communication module for terminals which understand the X protocol.
- Copyright (C) 1989, 1993, 1994 Free Software Foundation, Inc.
-
- This file is part of GNU Emacs.
-
- GNU Emacs is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GNU Emacs is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Emacs; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /* Xt features made by Fred Pierresteguy. */
-
- /* On 4.3 these lose if they come after xterm.h. */
- /* On HP-UX 8.0 signal.h loses if it comes after config.h. */
- /* Putting these at the beginning seems to be standard for other .c files. */
- #include <signal.h>
-
- #include <config.h>
-
- #include <stdio.h>
-
- /* Need syssignal.h for various externs and definitions that may be required
- by some configurations for calls to signal later in this source file. */
- #include "syssignal.h"
-
- #ifdef HAVE_X_WINDOWS
-
- #include "lisp.h"
- #include "blockinput.h"
-
- /* This may include sys/types.h, and that somehow loses
- if this is not done before the other system files. */
- #include "xterm.h"
- #include <X11/cursorfont.h>
-
- #ifndef USG
- /* Load sys/types.h if not already loaded.
- In some systems loading it twice is suicidal. */
- #ifndef makedev
- #include <sys/types.h>
- #endif /* makedev */
- #endif /* USG */
-
- #ifdef BSD
- #include <sys/ioctl.h>
- #endif /* ! defined (BSD) */
-
- #include "systty.h"
- #include "systime.h"
-
- #ifndef INCLUDED_FCNTL
- #include <fcntl.h>
- #endif
- #include <ctype.h>
- #include <errno.h>
- #include <setjmp.h>
- #include <sys/stat.h>
- #include <sys/param.h>
-
- #include "dispextern.h"
- #include "termhooks.h"
- #include "termopts.h"
- #include "termchar.h"
- #if 0
- #include "sink.h"
- #include "sinkmask.h"
- #endif /* ! 0 */
- #include "gnu.h"
- #include "frame.h"
- #include "disptab.h"
- #include "buffer.h"
- #include "window.h"
- #include "keyboard.h"
-
- #ifdef USE_X_TOOLKIT
- extern XtAppContext Xt_app_con;
- extern Widget Xt_app_shell;
- extern void free_frame_menubar ();
- extern void _XEditResCheckMessages ();
- #endif /* USE_X_TOOLKIT */
-
- #ifndef USE_X_TOOLKIT
- #define x_any_window_to_frame x_window_to_frame
- #define x_top_window_to_frame x_window_to_frame
- #endif
-
- #ifdef USE_X_TOOLKIT
- #ifndef XtNinitialState
- #define XtNinitialState "initialState"
- #endif
- #endif
-
- #ifdef HAVE_X11
- #define XMapWindow XMapRaised /* Raise them when mapping. */
- #else /* ! defined (HAVE_X11) */
- #include <X/Xkeyboard.h>
- /*#include <X/Xproto.h> */
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef FD_SET
- /* We could get this from param.h, but better not to depend on finding that.
- And better not to risk that it might define other symbols used in this
- file. */
- #ifdef FD_SETSIZE
- #define MAXDESC FD_SETSIZE
- #else
- #define MAXDESC 64
- #endif
- #define SELECT_TYPE fd_set
- #else /* no FD_SET */
- #define MAXDESC 32
- #define SELECT_TYPE int
-
- /* Define the macros to access a single-int bitmap of descriptors. */
- #define FD_SET(n, p) (*(p) |= (1 << (n)))
- #define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
- #define FD_ISSET(n, p) (*(p) & (1 << (n)))
- #define FD_ZERO(p) (*(p) = 0)
- #endif /* no FD_SET */
-
- /* For sending Meta-characters. Do we need this? */
- #define METABIT 0200
-
- #define min(a,b) ((a)<(b) ? (a) : (b))
- #define max(a,b) ((a)>(b) ? (a) : (b))
-
- /* Nonzero means we must reprint all windows
- because 1) we received an ExposeWindow event
- or 2) we received too many ExposeRegion events to record.
-
- This is never needed under X11. */
- static int expose_all_windows;
-
- /* Nonzero means we must reprint all icon windows. */
-
- static int expose_all_icons;
-
- #ifndef HAVE_X11
- /* ExposeRegion events, when received, are copied into this queue
- for later processing. */
-
- static struct event_queue x_expose_queue;
-
- /* ButtonPress and ButtonReleased events, when received,
- are copied into this queue for later processing. */
-
- struct event_queue x_mouse_queue;
- #endif /* HAVE_X11 */
-
- #if defined (SIGIO) && defined (FIONREAD)
- int BLOCK_INPUT_mask;
- #endif /* ! defined (SIGIO) && defined (FIONREAD) */
-
- /* The id of a bitmap used for icon windows.
- One such map is shared by all Emacs icon windows.
- This is zero if we have not yet had a need to create the bitmap. */
-
- static Bitmap icon_bitmap;
-
- /* Font used for text icons. */
-
- static FONT_TYPE *icon_font_info;
-
- /* Stuff for dealing with the main icon title. */
-
- extern Lisp_Object Vcommand_line_args, Vsystem_name;
- char *x_id_name;
-
- /* Initial values of argv and argc. */
- extern char **initial_argv;
- extern int initial_argc;
-
- /* This is the X connection that we are using. */
-
- Display *x_current_display;
-
- /* The cursor to use for vertical scroll bars on x_current_display. */
- static Cursor x_vertical_scroll_bar_cursor;
-
- /* Frame being updated by update_frame. This is declared in term.c.
- This is set by update_begin and looked at by all the
- XT functions. It is zero while not inside an update.
- In that case, the XT functions assume that `selected_frame'
- is the frame to apply to. */
- extern struct frame *updating_frame;
-
- /* The frame (if any) which has the X window that has keyboard focus.
- Zero if none. This is examined by Ffocus_frame in frame.c. Note
- that a mere EnterNotify event can set this; if you need to know the
- last frame specified in a FocusIn or FocusOut event, use
- x_focus_event_frame. */
- struct frame *x_focus_frame;
-
- /* This is a frame waiting to be autoraised, within XTread_socket. */
- struct frame *pending_autoraise_frame;
-
- /* The last frame mentioned in a FocusIn or FocusOut event. This is
- separate from x_focus_frame, because whether or not LeaveNotify
- events cause us to lose focus depends on whether or not we have
- received a FocusIn event for it. */
- struct frame *x_focus_event_frame;
-
- /* The frame which currently has the visual highlight, and should get
- keyboard input (other sorts of input have the frame encoded in the
- event). It points to the X focus frame's selected window's
- frame. It differs from x_focus_frame when we're using a global
- minibuffer. */
- static struct frame *x_highlight_frame;
-
- /* From .Xdefaults, the value of "emacs.WarpMouse". If non-zero,
- mouse is moved to inside of frame when frame is de-iconified. */
-
- static int warp_mouse_on_deiconify;
-
- /* During an update, maximum vpos for ins/del line operations to affect. */
-
- static int flexlines;
-
- /* During an update, nonzero if chars output now should be highlighted. */
-
- static int highlight;
-
- /* Nominal cursor position -- where to draw output.
- During an update, these are different from the cursor-box position. */
-
- static int curs_x;
- static int curs_y;
-
- /* Reusable Graphics Context for drawing a cursor in a non-default face. */
- static GC scratch_cursor_gc;
-
- /* Mouse movement.
-
- In order to avoid asking for motion events and then throwing most
- of them away or busy-polling the server for mouse positions, we ask
- the server for pointer motion hints. This means that we get only
- one event per group of mouse movements. "Groups" are delimited by
- other kinds of events (focus changes and button clicks, for
- example), or by XQueryPointer calls; when one of these happens, we
- get another MotionNotify event the next time the mouse moves. This
- is at least as efficient as getting motion events when mouse
- tracking is on, and I suspect only negligibly worse when tracking
- is off.
-
- The silly O'Reilly & Associates Nutshell guides barely document
- pointer motion hints at all (I think you have to infer how they
- work from an example), and the description of XQueryPointer doesn't
- mention that calling it causes you to get another motion hint from
- the server, which is very important. */
-
- /* Where the mouse was last time we reported a mouse event. */
- static FRAME_PTR last_mouse_frame;
- static XRectangle last_mouse_glyph;
-
- /* The scroll bar in which the last X motion event occurred.
-
- If the last X motion event occurred in a scroll bar, we set this
- so XTmouse_position can know whether to report a scroll bar motion or
- an ordinary motion.
-
- If the last X motion event didn't occur in a scroll bar, we set this
- to Qnil, to tell XTmouse_position to return an ordinary motion event. */
- static Lisp_Object last_mouse_scroll_bar;
-
- /* Record which buttons are currently pressed. */
- unsigned int x_mouse_grabbed;
-
- /* This is a hack. We would really prefer that XTmouse_position would
- return the time associated with the position it returns, but there
- doesn't seem to be any way to wrest the timestamp from the server
- along with the position query. So, we just keep track of the time
- of the last movement we received, and return that in hopes that
- it's somewhat accurate. */
- static Time last_mouse_movement_time;
-
- /* These variables describe the range of text currently shown
- in its mouse-face, together with the window they apply to.
- As long as the mouse stays within this range, we need not
- redraw anything on its account. */
- static int mouse_face_beg_row, mouse_face_beg_col;
- static int mouse_face_end_row, mouse_face_end_col;
- static int mouse_face_past_end;
- static Lisp_Object mouse_face_window;
- static int mouse_face_face_id;
-
- /* 1 if a mouse motion event came and we didn't handle it right away because
- gc was in progress. */
- static int mouse_face_deferred_gc;
-
- /* FRAME and X, Y position of mouse when last checked for
- highlighting. X and Y can be negative or out of range for the frame. */
- static FRAME_PTR mouse_face_mouse_frame;
- static int mouse_face_mouse_x, mouse_face_mouse_y;
-
- /* Nonzero means defer mouse-motion highlighting. */
- static int mouse_face_defer;
-
- #ifdef HAVE_X11
- /* `t' if a mouse button is depressed. */
-
- extern Lisp_Object Vmouse_depressed;
-
- /* Tells if a window manager is present or not. */
-
- extern Lisp_Object Vx_no_window_manager;
-
- /* Timestamp that we requested selection data was made. */
- extern Time requestor_time;
-
- /* ID of the window requesting selection data. */
- extern Window requestor_window;
-
- /* Nonzero enables some debugging for the X interface code. */
- extern int _Xdebug;
-
- extern Lisp_Object Qface, Qmouse_face;
-
- #else /* ! defined (HAVE_X11) */
-
- /* Bit patterns for the mouse cursor. */
-
- short MouseCursor[] = {
- 0x0000, 0x0008, 0x0018, 0x0038,
- 0x0078, 0x00f8, 0x01f8, 0x03f8,
- 0x07f8, 0x00f8, 0x00d8, 0x0188,
- 0x0180, 0x0300, 0x0300, 0x0000};
-
- short MouseMask[] = {
- 0x000c, 0x001c, 0x003c, 0x007c,
- 0x00fc, 0x01fc, 0x03fc, 0x07fc,
- 0x0ffc, 0x0ffc, 0x01fc, 0x03dc,
- 0x03cc, 0x0780, 0x0780, 0x0300};
-
- static short grey_bits[] = {
- 0x0005, 0x000a, 0x0005, 0x000a};
-
- static Pixmap GreyPixmap = 0;
- #endif /* ! defined (HAVE_X11) */
-
- static int x_noop_count;
-
-
- /* From time to time we get info on an Emacs window, here. */
-
- static WINDOWINFO_TYPE windowinfo;
-
- extern int errno;
-
- /* A mask of extra modifier bits to put into every keyboard char. */
- extern int extra_keyboard_modifiers;
-
- extern Display *XOpenDisplay ();
- extern Window XCreateWindow ();
-
- extern Cursor XCreateCursor ();
- extern FONT_TYPE *XOpenFont ();
-
- static void flashback ();
- static void redraw_previous_char ();
- static void redraw_following_char ();
- static unsigned int x_x_to_emacs_modifiers ();
-
- static int fast_find_position ();
- static void note_mouse_highlight ();
- static void clear_mouse_face ();
- static void show_mouse_face ();
-
- #ifndef HAVE_X11
- static void dumpqueue ();
- #endif /* HAVE_X11 */
-
- void dumpborder ();
- static int XTcursor_to ();
- static int XTclear_end_of_line ();
-
-
- /* Starting and ending updates.
-
- These hooks are called by update_frame at the beginning and end
- of a frame update. We record in `updating_frame' the identity
- of the frame being updated, so that the XT... functions do not
- need to take a frame as argument. Most of the XT... functions
- should never be called except during an update, the only exceptions
- being XTcursor_to, XTwrite_glyphs and XTreassert_line_highlight. */
-
- extern int mouse_track_top, mouse_track_left, mouse_track_width;
-
- static
- XTupdate_begin (f)
- struct frame *f;
- {
- int mask;
-
- if (f == 0)
- abort ();
-
- flexlines = f->height;
- highlight = 0;
-
- BLOCK_INPUT;
-
- if (f == mouse_face_mouse_frame)
- {
- /* Don't do highlighting for mouse motion during the update. */
- mouse_face_defer = 1;
- if (!NILP (mouse_face_window))
- {
- int firstline, lastline, i;
- struct window *w = XWINDOW (mouse_face_window);
-
- /* Find the first, and the last+1, lines affected by redisplay. */
- for (firstline = 0; firstline < f->height; firstline++)
- if (FRAME_DESIRED_GLYPHS (f)->enable[firstline])
- break;
-
- lastline = f->height;
- for (i = f->height - 1; i >= 0; i--)
- {
- if (FRAME_DESIRED_GLYPHS (f)->enable[i])
- break;
- else
- lastline = i;
- }
-
- /* Can we tell that this update does not affect the window
- where the mouse highlight is? If so, no need to turn off. */
- if (! (firstline > (XFASTINT (w->top) + window_internal_height (w))
- || lastline < XFASTINT (w->top)))
- /* Otherwise turn off the mouse highlight now. */
- clear_mouse_face ();
- }
- }
- #ifndef HAVE_X11
- dumpqueue ();
- #endif /* HAVE_X11 */
- UNBLOCK_INPUT;
- }
-
- #ifndef HAVE_X11
- static void x_do_pending_expose ();
- #endif
-
- static
- XTupdate_end (f)
- struct frame *f;
- {
- int mask;
-
- BLOCK_INPUT;
- #ifndef HAVE_X11
- dumpqueue ();
- x_do_pending_expose ();
- #endif /* HAVE_X11 */
-
- x_display_cursor (f, 1);
-
- if (f == mouse_face_mouse_frame)
- mouse_face_defer = 0;
- #if 0
- /* This fails in the case of having updated only the echo area
- if we have switched buffers. In that case, FRAME_CURRENT_GLYPHS
- has no relation to the current contents, and its charstarts
- have no relation to the contents of the window-buffer.
- I don't know a clean way to check
- for that case. window_end_valid isn't set up yet. */
- if (f == mouse_face_mouse_frame)
- note_mouse_highlight (f, mouse_face_mouse_x, mouse_face_mouse_y);
- #endif
-
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
-
- /* This is called after a redisplay on frame F. */
-
- static
- XTframe_up_to_date (f)
- FRAME_PTR f;
- {
- if (mouse_face_deferred_gc || f == mouse_face_mouse_frame)
- {
- note_mouse_highlight (mouse_face_mouse_frame,
- mouse_face_mouse_x, mouse_face_mouse_y);
- mouse_face_deferred_gc = 0;
- }
- }
-
- /* External interface to control of standout mode.
- Call this when about to modify line at position VPOS
- and not change whether it is highlighted. */
-
- XTreassert_line_highlight (new, vpos)
- int new, vpos;
- {
- highlight = new;
- }
-
- /* Call this when about to modify line at position VPOS
- and change whether it is highlighted. */
-
- static
- XTchange_line_highlight (new_highlight, vpos, first_unused_hpos)
- int new_highlight, vpos, first_unused_hpos;
- {
- highlight = new_highlight;
- XTcursor_to (vpos, 0);
- XTclear_end_of_line (updating_frame->width);
- }
-
- /* This is used when starting Emacs and when restarting after suspend.
- When starting Emacs, no X window is mapped. And nothing must be done
- to Emacs's own window if it is suspended (though that rarely happens). */
-
- static
- XTset_terminal_modes ()
- {
- }
-
- /* This is called when exiting or suspending Emacs.
- Exiting will make the X-windows go away, and suspending
- requires no action. */
-
- static
- XTreset_terminal_modes ()
- {
- /* XTclear_frame (); */
- }
-
- /* Set the nominal cursor position of the frame.
- This is where display update commands will take effect.
- This does not affect the place where the cursor-box is displayed. */
-
- static int
- XTcursor_to (row, col)
- register int row, col;
- {
- int mask;
- int orow = row;
-
- curs_x = col;
- curs_y = row;
-
- if (updating_frame == 0)
- {
- BLOCK_INPUT;
- x_display_cursor (selected_frame, 1);
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
- }
-
- /* Display a sequence of N glyphs found at GP.
- WINDOW is the x-window to output to. LEFT and TOP are starting coords.
- HL is 1 if this text is highlighted, 2 if the cursor is on it,
- 3 if should appear in its mouse-face.
- JUST_FOREGROUND if 1 means draw only the foreground;
- don't alter the background.
-
- FONT is the default font to use (for glyphs whose font-code is 0).
-
- Since the display generation code is responsible for calling
- compute_char_face and compute_glyph_face on everything it puts in
- the display structure, we can assume that the face code on each
- glyph is a valid index into FRAME_COMPUTED_FACES (f), and the one
- to which we can actually apply intern_face.
- Call this function with input blocked. */
-
- #if 1
- /* This is the multi-face code. */
-
- static void
- dumpglyphs (f, left, top, gp, n, hl, just_foreground)
- struct frame *f;
- int left, top;
- register GLYPH *gp; /* Points to first GLYPH. */
- register int n; /* Number of glyphs to display. */
- int hl;
- int just_foreground;
- {
- /* Holds characters to be displayed. */
- char *buf = (char *) alloca (f->width * sizeof (*buf));
- register char *cp; /* Steps through buf[]. */
- register int tlen = GLYPH_TABLE_LENGTH;
- register Lisp_Object *tbase = GLYPH_TABLE_BASE;
- Window window = FRAME_X_WINDOW (f);
- int orig_left = left;
-
- while (n > 0)
- {
- /* Get the face-code of the next GLYPH. */
- int cf, len;
- int g = *gp;
-
- GLYPH_FOLLOW_ALIASES (tbase, tlen, g);
- cf = FAST_GLYPH_FACE (g);
-
- /* Find the run of consecutive glyphs with the same face-code.
- Extract their character codes into BUF. */
- cp = buf;
- while (n > 0)
- {
- g = *gp;
- GLYPH_FOLLOW_ALIASES (tbase, tlen, g);
- if (FAST_GLYPH_FACE (g) != cf)
- break;
-
- *cp++ = FAST_GLYPH_CHAR (g);
- --n;
- ++gp;
- }
-
- /* LEN gets the length of the run. */
- len = cp - buf;
-
- /* Now output this run of chars, with the font and pixel values
- determined by the face code CF. */
- {
- struct face *face = FRAME_DEFAULT_FACE (f);
- FONT_TYPE *font = FACE_FONT (face);
- GC gc = FACE_GC (face);
-
- /* HL = 3 means use a mouse face previously chosen. */
- if (hl == 3)
- cf = mouse_face_face_id;
-
- /* First look at the face of the text itself. */
- if (cf != 0)
- {
- /* It's possible for the display table to specify
- a face code that is out of range. Use 0 in that case. */
- if (cf < 0 || cf >= FRAME_N_COMPUTED_FACES (f)
- || FRAME_COMPUTED_FACES (f) [cf] == 0)
- cf = 0;
-
- if (cf == 1)
- face = FRAME_MODE_LINE_FACE (f);
- else
- face = intern_face (f, FRAME_COMPUTED_FACES (f) [cf]);
- font = FACE_FONT (face);
- gc = FACE_GC (face);
- }
-
- /* Then comes the distinction between modeline and normal text. */
- else if (hl == 0)
- ;
- else if (hl == 1)
- {
- face = FRAME_MODE_LINE_FACE (f);
- font = FACE_FONT (face);
- gc = FACE_GC (face);
- }
-
- #define FACE_DEFAULT (~0)
-
- /* Now override that if the cursor's on this character. */
- if (hl == 2)
- {
- if ((!face->font
- || (int) face->font == FACE_DEFAULT
- || face->font == f->display.x->font)
- && face->background == f->display.x->background_pixel
- && face->foreground == f->display.x->foreground_pixel)
- {
- gc = f->display.x->cursor_gc;
- }
- /* Cursor on non-default face: must merge. */
- else
- {
- XGCValues xgcv;
- unsigned long mask;
-
- xgcv.background = f->display.x->cursor_pixel;
- xgcv.foreground = face->background;
- /* If the glyph would be invisible,
- try a different foreground. */
- if (xgcv.foreground == xgcv.background)
- xgcv.foreground = face->foreground;
- if (xgcv.foreground == xgcv.background)
- xgcv.foreground = f->display.x->cursor_foreground_pixel;
- if (xgcv.foreground == xgcv.background)
- xgcv.foreground = face->foreground;
- /* Make sure the cursor is distinct from text in this face. */
- if (xgcv.background == face->background
- && xgcv.foreground == face->foreground)
- {
- xgcv.background = face->foreground;
- xgcv.foreground = face->background;
- }
- xgcv.font = face->font->fid;
- xgcv.graphics_exposures = 0;
- mask = GCForeground | GCBackground | GCFont | GCGraphicsExposures;
- if (scratch_cursor_gc)
- XChangeGC (x_current_display, scratch_cursor_gc, mask, &xgcv);
- else
- scratch_cursor_gc =
- XCreateGC (x_current_display, window, mask, &xgcv);
- gc = scratch_cursor_gc;
- #if 0
- /* If this code is restored, it must also reset to the default stipple
- if necessary. */
- if (face->stipple && face->stipple != FACE_DEFAULT)
- XSetStipple (x_current_display, gc, face->stipple);
- #endif
- }
- }
-
- if ((int) font == FACE_DEFAULT)
- font = f->display.x->font;
-
- if (just_foreground)
- XDrawString (x_current_display, window, gc,
- left, top + FONT_BASE (font), buf, len);
- else
- {
- XDrawImageString (x_current_display, window, gc,
- left, top + FONT_BASE (font), buf, len);
- /* Clear the rest of the line's height. */
- if (f->display.x->line_height != FONT_HEIGHT (font))
- XClearArea (x_current_display, window, left,
- top + FONT_HEIGHT (font),
- FONT_WIDTH (font) * len,
- /* This is how many pixels of height
- we have to clear. */
- f->display.x->line_height - FONT_HEIGHT (font),
- False);
- }
-
- #if 0 /* Doesn't work, because it uses FRAME_CURRENT_GLYPHS,
- which often is not up to date yet. */
- if (!just_foreground)
- {
- if (left == orig_left)
- redraw_previous_char (f, PIXEL_TO_CHAR_COL (f, left),
- PIXEL_TO_CHAR_ROW (f, top), hl == 1);
- if (n == 0)
- redraw_following_char (f, PIXEL_TO_CHAR_COL (f, left + len * FONT_WIDTH (font)),
- PIXEL_TO_CHAR_ROW (f, top), hl == 1);
- }
- #endif
-
- /* We should probably check for XA_UNDERLINE_POSITION and
- XA_UNDERLINE_THICKNESS properties on the font, but let's
- just get the thing working, and come back to that. */
- {
- int underline_position = 1;
-
- if (font->descent <= underline_position)
- underline_position = font->descent - 1;
-
- if (face->underline)
- XFillRectangle (x_current_display, FRAME_X_WINDOW (f),
- FACE_GC (face),
- left, (top
- + FONT_BASE (font)
- + underline_position),
- len * FONT_WIDTH (font), 1);
- }
-
- left += len * FONT_WIDTH (font);
- }
- }
- }
- #endif /* 1 */
-
- #if 0
- /* This is the old single-face code. */
-
- static void
- dumpglyphs (f, left, top, gp, n, hl, font)
- struct frame *f;
- int left, top;
- register GLYPH *gp; /* Points to first GLYPH. */
- register int n; /* Number of glyphs to display. */
- int hl;
- FONT_TYPE *font;
- {
- register int len;
- Window window = FRAME_X_WINDOW (f);
- GC drawing_gc = (hl == 2 ? f->display.x->cursor_gc
- : (hl ? f->display.x->reverse_gc
- : f->display.x->normal_gc));
-
- if (sizeof (GLYPH) == sizeof (XChar2b))
- XDrawImageString16 (x_current_display, window, drawing_gc,
- left, top + FONT_BASE (font), (XChar2b *) gp, n);
- else if (sizeof (GLYPH) == sizeof (unsigned char))
- XDrawImageString (x_current_display, window, drawing_gc,
- left, top + FONT_BASE (font), (char *) gp, n);
- else
- /* What size of glyph ARE you using? And does X have a function to
- draw them? */
- abort ();
- }
- #endif
-
- /* Output some text at the nominal frame cursor position.
- Advance the cursor over the text.
- Output LEN glyphs at START.
-
- `highlight', set up by XTreassert_line_highlight or XTchange_line_highlight,
- controls the pixel values used for foreground and background. */
-
- static
- XTwrite_glyphs (start, len)
- register GLYPH *start;
- int len;
- {
- register int temp_length;
- int mask;
- struct frame *f;
-
- BLOCK_INPUT;
-
- f = updating_frame;
- if (f == 0)
- {
- f = selected_frame;
- /* If not within an update,
- output at the frame's visible cursor. */
- curs_x = f->cursor_x;
- curs_y = f->cursor_y;
- }
-
- dumpglyphs (f,
- CHAR_TO_PIXEL_COL (f, curs_x),
- CHAR_TO_PIXEL_ROW (f, curs_y),
- start, len, highlight, 0);
-
- /* If we drew on top of the cursor, note that it is turned off. */
- if (curs_y == f->phys_cursor_y
- && curs_x <= f->phys_cursor_x
- && curs_x + len > f->phys_cursor_x)
- f->phys_cursor_x = -1;
-
- if (updating_frame == 0)
- {
- f->cursor_x += len;
- x_display_cursor (f, 1);
- f->cursor_x -= len;
- }
- else
- curs_x += len;
-
- UNBLOCK_INPUT;
- }
-
- /* Clear to the end of the line.
- Erase the current text line from the nominal cursor position (inclusive)
- to column FIRST_UNUSED (exclusive). The idea is that everything
- from FIRST_UNUSED onward is already erased. */
-
- static int
- XTclear_end_of_line (first_unused)
- register int first_unused;
- {
- struct frame *f = updating_frame;
- int mask;
-
- if (f == 0)
- abort ();
-
- if (curs_y < 0 || curs_y >= f->height)
- return;
- if (first_unused <= 0)
- return;
-
- if (first_unused >= f->width)
- first_unused = f->width;
-
- BLOCK_INPUT;
-
- /* Notice if the cursor will be cleared by this operation. */
- if (curs_y == f->phys_cursor_y
- && curs_x <= f->phys_cursor_x
- && f->phys_cursor_x < first_unused)
- f->phys_cursor_x = -1;
-
- #ifdef HAVE_X11
- XClearArea (x_current_display, FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, curs_x),
- CHAR_TO_PIXEL_ROW (f, curs_y),
- FONT_WIDTH (f->display.x->font) * (first_unused - curs_x),
- f->display.x->line_height, False);
- #if 0
- redraw_previous_char (f, curs_x, curs_y, highlight);
- #endif
- #else /* ! defined (HAVE_X11) */
- XPixSet (FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, curs_x),
- CHAR_TO_PIXEL_ROW (f, curs_y),
- FONT_WIDTH (f->display.x->font) * (first_unused - curs_x),
- f->display.x->line_height,
- f->display.x->background_pixel);
- #endif /* ! defined (HAVE_X11) */
-
- UNBLOCK_INPUT;
- }
-
- static
- XTclear_frame ()
- {
- int mask;
- struct frame *f = updating_frame;
-
- if (f == 0)
- f = selected_frame;
-
- f->phys_cursor_x = -1; /* Cursor not visible. */
- curs_x = 0; /* Nominal cursor position is top left. */
- curs_y = 0;
-
- BLOCK_INPUT;
-
- XClear (FRAME_X_WINDOW (f));
-
- /* We have to clear the scroll bars, too. If we have changed
- colors or something like that, then they should be notified. */
- x_scroll_bar_clear (f);
-
- #ifndef HAVE_X11
- dumpborder (f, 0);
- #endif /* HAVE_X11 */
-
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
-
- #if 0
- /* This currently does not work because FRAME_CURRENT_GLYPHS doesn't
- always contain the right glyphs to use.
-
- It also needs to be changed to look at the details of the font and
- see whether there is really overlap, and do nothing when there is
- not. This can use font_char_overlap_left and font_char_overlap_right,
- but just how to use them is not clear. */
-
- /* Erase the character (if any) at the position just before X, Y in frame F,
- then redraw it and the character before it.
- This is necessary when we erase starting at X,
- in case the character after X overlaps into the one before X.
- Call this function with input blocked. */
-
- static void
- redraw_previous_char (f, x, y, highlight_flag)
- FRAME_PTR f;
- int x, y;
- int highlight_flag;
- {
- /* Erase the character before the new ones, in case
- what was here before overlaps it.
- Reoutput that character, and the previous character
- (in case the previous character overlaps it). */
- if (x > 0)
- {
- int start_x = x - 2;
- if (start_x < 0)
- start_x = 0;
- XClearArea (x_current_display, FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, x - 1),
- CHAR_TO_PIXEL_ROW (f, y),
- FONT_WIDTH (f->display.x->font),
- f->display.x->line_height, False);
-
- dumpglyphs (f, CHAR_TO_PIXEL_COL (f, start_x),
- CHAR_TO_PIXEL_ROW (f, y),
- &FRAME_CURRENT_GLYPHS (f)->glyphs[y][start_x],
- x - start_x, highlight_flag, 1);
- }
- }
-
- /* Erase the character (if any) at the position X, Y in frame F,
- then redraw it and the character after it.
- This is necessary when we erase endng at X,
- in case the character after X overlaps into the one before X.
- Call this function with input blocked. */
-
- static void
- redraw_following_char (f, x, y, highlight_flag)
- FRAME_PTR f;
- int x, y;
- int highlight_flag;
- {
- int limit = FRAME_CURRENT_GLYPHS (f)->used[y];
- /* Erase the character after the new ones, in case
- what was here before overlaps it.
- Reoutput that character, and the following character
- (in case the following character overlaps it). */
- if (x < limit
- && FRAME_CURRENT_GLYPHS (f)->glyphs[y][x] != SPACEGLYPH)
- {
- int end_x = x + 2;
- if (end_x > limit)
- end_x = limit;
- XClearArea (x_current_display, FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, x),
- CHAR_TO_PIXEL_ROW (f, y),
- FONT_WIDTH (f->display.x->font),
- f->display.x->line_height, False);
-
- dumpglyphs (f, CHAR_TO_PIXEL_COL (f, x),
- CHAR_TO_PIXEL_ROW (f, y),
- &FRAME_CURRENT_GLYPHS (f)->glyphs[y][x],
- end_x - x, highlight_flag, 1);
- }
- }
- #endif /* 0 */
-
- #if 0 /* Not in use yet */
-
- /* Return 1 if character C in font F extends past its left edge. */
-
- static int
- font_char_overlap_left (font, c)
- XFontStruct *font;
- int c;
- {
- XCharStruct *s;
-
- /* Find the bounding-box info for C. */
- if (font->per_char == 0)
- s = &font->max_bounds;
- else
- {
- int rowlen = font->max_char_or_byte2 - font->min_char_or_byte2 + 1;
- int row, within;
-
- /* Decode char into row number (byte 1) and code within row (byte 2). */
- row = c >> 8;
- within = c & 0177;
- if (!(within >= font->min_char_or_byte2
- && within <= font->max_char_or_byte2
- && row >= font->min_byte1
- && row <= font->max_byte1))
- {
- /* If char is out of range, try the font's default char instead. */
- c = font->default_char;
- row = c >> (INTBITS - 8);
- within = c & 0177;
- }
- if (!(within >= font->min_char_or_byte2
- && within <= font->max_char_or_byte2
- && row >= font->min_byte1
- && row <= font->max_byte1))
- /* Still out of range means this char does not overlap. */
- return 0;
- else
- /* We found the info for this char. */
- s = (font->per_char + (within - font->min_char_or_byte2)
- + row * rowlen);
- }
-
- return (s && s->lbearing < 0);
- }
-
- /* Return 1 if character C in font F extends past its right edge. */
-
- static int
- font_char_overlap_right (font, c)
- XFontStruct *font;
- int c;
- {
- XCharStruct *s;
-
- /* Find the bounding-box info for C. */
- if (font->per_char == 0)
- s = &font->max_bounds;
- else
- {
- int rowlen = font->max_char_or_byte2 - font->min_char_or_byte2 + 1;
- int row, within;
-
- /* Decode char into row number (byte 1) and code within row (byte 2). */
- row = c >> 8;
- within = c & 0177;
- if (!(within >= font->min_char_or_byte2
- && within <= font->max_char_or_byte2
- && row >= font->min_byte1
- && row <= font->max_byte1))
- {
- /* If char is out of range, try the font's default char instead. */
- c = font->default_char;
- row = c >> (INTBITS - 8);
- within = c & 0177;
- }
- if (!(within >= font->min_char_or_byte2
- && within <= font->max_char_or_byte2
- && row >= font->min_byte1
- && row <= font->max_byte1))
- /* Still out of range means this char does not overlap. */
- return 0;
- else
- /* We found the info for this char. */
- s = (font->per_char + (within - font->min_char_or_byte2)
- + row * rowlen);
- }
-
- return (s && s->rbearing >= s->width);
- }
- #endif /* 0 */
-
- /* Invert the middle quarter of the frame for .15 sec. */
-
- /* We use the select system call to do the waiting, so we have to make sure
- it's available. If it isn't, we just won't do visual bells. */
- #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT)
-
- /* Subtract the `struct timeval' values X and Y,
- storing the result in RESULT.
- Return 1 if the difference is negative, otherwise 0. */
-
- static int
- timeval_subtract (result, x, y)
- struct timeval *result, x, y;
- {
- /* Perform the carry for the later subtraction by updating y.
- This is safer because on some systems
- the tv_sec member is unsigned. */
- if (x.tv_usec < y.tv_usec)
- {
- int nsec = (y.tv_usec - x.tv_usec) / 1000000 + 1;
- y.tv_usec -= 1000000 * nsec;
- y.tv_sec += nsec;
- }
- if (x.tv_usec - y.tv_usec > 1000000)
- {
- int nsec = (y.tv_usec - x.tv_usec) / 1000000;
- y.tv_usec += 1000000 * nsec;
- y.tv_sec -= nsec;
- }
-
- /* Compute the time remaining to wait. tv_usec is certainly positive. */
- result->tv_sec = x.tv_sec - y.tv_sec;
- result->tv_usec = x.tv_usec - y.tv_usec;
-
- /* Return indication of whether the result should be considered negative. */
- return x.tv_sec < y.tv_sec;
- }
-
- XTflash (f)
- struct frame *f;
- {
- BLOCK_INPUT;
-
- {
- GC gc;
-
- /* Create a GC that will use the GXxor function to flip foreground pixels
- into background pixels. */
- {
- XGCValues values;
-
- values.function = GXxor;
- values.foreground = (f->display.x->foreground_pixel
- ^ f->display.x->background_pixel);
-
- gc = XCreateGC (x_current_display, FRAME_X_WINDOW (f),
- GCFunction | GCForeground, &values);
- }
-
- {
- int width = PIXEL_WIDTH (f);
- int height = PIXEL_HEIGHT (f);
-
- XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc,
- width/4, height/4, width/2, height/2);
- XFlush (x_current_display);
-
- {
- struct timeval wakeup, now;
-
- EMACS_GET_TIME (wakeup);
-
- /* Compute time to wait until, propagating carry from usecs. */
- wakeup.tv_usec += 150000;
- wakeup.tv_sec += (wakeup.tv_usec / 1000000);
- wakeup.tv_usec %= 1000000;
-
- /* Keep waiting until past the time wakeup. */
- while (1)
- {
- struct timeval timeout;
-
- EMACS_GET_TIME (timeout);
-
- /* In effect, timeout = wakeup - timeout.
- Break if result would be negative. */
- if (timeval_subtract (&timeout, wakeup, timeout))
- break;
-
- /* Try to wait that long--but we might wake up sooner. */
- select (0, 0, 0, 0, &timeout);
- }
- }
-
- XFillRectangle (x_current_display, FRAME_X_WINDOW (f), gc,
- width/4, height/4, width/2, height/2);
- XFreeGC (x_current_display, gc);
- XFlush (x_current_display);
- }
- }
-
- UNBLOCK_INPUT;
- }
-
- #endif
-
-
- /* Make audible bell. */
-
- #ifdef HAVE_X11
- #define XRINGBELL XBell (x_current_display, 0)
- #else /* ! defined (HAVE_X11) */
- #define XRINGBELL XFeep (0);
- #endif /* ! defined (HAVE_X11) */
-
- XTring_bell ()
- {
- if (x_current_display == 0)
- return;
-
- #if defined (HAVE_TIMEVAL) && defined (HAVE_SELECT)
- if (visible_bell)
- XTflash (selected_frame);
- else
- #endif
- {
- BLOCK_INPUT;
- XRINGBELL;
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
- }
-
- /* Insert and delete character.
- These are not supposed to be used because we are supposed to turn
- off the feature of using them. */
-
- static
- XTinsert_glyphs (start, len)
- register char *start;
- register int len;
- {
- abort ();
- }
-
- static
- XTdelete_glyphs (n)
- register int n;
- {
- abort ();
- }
-
- /* Specify how many text lines, from the top of the window,
- should be affected by insert-lines and delete-lines operations.
- This, and those operations, are used only within an update
- that is bounded by calls to XTupdate_begin and XTupdate_end. */
-
- static
- XTset_terminal_window (n)
- register int n;
- {
- if (updating_frame == 0)
- abort ();
-
- if ((n <= 0) || (n > updating_frame->height))
- flexlines = updating_frame->height;
- else
- flexlines = n;
- }
-
- /* Perform an insert-lines operation.
- Insert N lines at a vertical position curs_y. */
-
- static void
- stufflines (n)
- register int n;
- {
- register int topregion, bottomregion;
- register int length, newtop, mask;
- register struct frame *f = updating_frame;
- int intborder = f->display.x->internal_border_width;
-
- if (curs_y >= flexlines)
- return;
-
- topregion = curs_y;
- bottomregion = flexlines - (n + 1);
- newtop = topregion + n;
- length = (bottomregion - topregion) + 1;
-
- #ifndef HAVE_X11
- dumpqueue ();
- #endif /* HAVE_X11 */
-
- if ((length > 0) && (newtop <= flexlines))
- {
- #ifdef HAVE_X11
- XCopyArea (x_current_display, FRAME_X_WINDOW (f),
- FRAME_X_WINDOW (f), f->display.x->normal_gc,
- intborder, CHAR_TO_PIXEL_ROW (f, topregion),
- f->width * FONT_WIDTH (f->display.x->font),
- length * f->display.x->line_height, intborder,
- CHAR_TO_PIXEL_ROW (f, newtop));
- #else /* ! defined (HAVE_X11) */
- XMoveArea (FRAME_X_WINDOW (f),
- intborder, CHAR_TO_PIXEL_ROW (f, topregion),
- intborder, CHAR_TO_PIXEL_ROW (f, newtop),
- f->width * FONT_WIDTH (f->display.x->font),
- length * f->display.x->line_height);
- /* Now we must process any ExposeRegion events that occur
- if the area being copied from is obscured.
- We can't let it wait because further i/d operations
- may want to copy this area to another area. */
- x_read_exposes ();
- #endif /* ! defined (HAVE_X11) */
- }
-
- newtop = min (newtop, (flexlines - 1));
- length = newtop - topregion;
- if (length > 0)
- {
- #ifdef HAVE_X11
- XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder,
- CHAR_TO_PIXEL_ROW (f, topregion),
- f->width * FONT_WIDTH (f->display.x->font),
- n * f->display.x->line_height, False);
- #else /* ! defined (HAVE_X11) */
- XPixSet (FRAME_X_WINDOW (f),
- intborder,
- CHAR_TO_PIXEL_ROW (f, topregion),
- f->width * FONT_WIDTH (f->display.x->font),
- n * f->display.x->line_height,
- f->display.x->background_pixel);
- #endif /* ! defined (HAVE_X11) */
- }
- }
-
- /* Perform a delete-lines operation, deleting N lines
- at a vertical position curs_y. */
-
- static void
- scraplines (n)
- register int n;
- {
- int mask;
- register struct frame *f = updating_frame;
- int intborder = f->display.x->internal_border_width;
-
- if (curs_y >= flexlines)
- return;
-
- #ifndef HAVE_X11
- dumpqueue ();
- #endif /* HAVE_X11 */
-
- if ((curs_y + n) >= flexlines)
- {
- if (flexlines >= (curs_y + 1))
- {
- #ifdef HAVE_X11
- XClearArea (x_current_display, FRAME_X_WINDOW (f), intborder,
- CHAR_TO_PIXEL_ROW (f, curs_y),
- f->width * FONT_WIDTH (f->display.x->font),
- (flexlines - curs_y) * f->display.x->line_height, False);
- #else /* ! defined (HAVE_X11) */
- XPixSet (FRAME_X_WINDOW (f),
- intborder, CHAR_TO_PIXEL_ROW (f, curs_y),
- f->width * FONT_WIDTH (f->display.x->font),
- (flexlines - curs_y) * f->display.x->line_height,
- f->display.x->background_pixel);
- #endif /* ! defined (HAVE_X11) */
- }
- }
- else
- {
- #ifdef HAVE_X11
- XCopyArea (x_current_display, FRAME_X_WINDOW (f),
- FRAME_X_WINDOW (f), f->display.x->normal_gc,
- intborder,
- CHAR_TO_PIXEL_ROW (f, curs_y + n),
- f->width * FONT_WIDTH (f->display.x->font),
- (flexlines - (curs_y + n)) * f->display.x->line_height,
- intborder, CHAR_TO_PIXEL_ROW (f, curs_y));
- XClearArea (x_current_display, FRAME_X_WINDOW (f),
- intborder,
- CHAR_TO_PIXEL_ROW (f, flexlines - n),
- f->width * FONT_WIDTH (f->display.x->font),
- n * f->display.x->line_height, False);
- #else /* ! defined (HAVE_X11) */
- XMoveArea (FRAME_X_WINDOW (f),
- intborder,
- CHAR_TO_PIXEL_ROW (f, curs_y + n),
- intborder, CHAR_TO_PIXEL_ROW (f, curs_y),
- f->width * FONT_WIDTH (f->display.x->font),
- (flexlines - (curs_y + n)) * f->display.x->line_height);
- /* Now we must process any ExposeRegion events that occur
- if the area being copied from is obscured.
- We can't let it wait because further i/d operations
- may want to copy this area to another area. */
- x_read_exposes ();
- XPixSet (FRAME_X_WINDOW (f), intborder,
- CHAR_TO_PIXEL_ROW (f, flexlines - n),
- f->width * FONT_WIDTH (f->display.x->font),
- n * f->display.x->line_height, f->display.x->background_pixel);
- #endif /* ! defined (HAVE_X11) */
- }
- }
-
- /* Perform an insert-lines or delete-lines operation,
- inserting N lines or deleting -N lines at vertical position VPOS. */
-
- XTins_del_lines (vpos, n)
- int vpos, n;
- {
- if (updating_frame == 0)
- abort ();
-
- /* Hide the cursor. */
- x_display_cursor (updating_frame, 0);
-
- XTcursor_to (vpos, 0);
-
- BLOCK_INPUT;
- if (n >= 0)
- stufflines (n);
- else
- scraplines (-n);
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
-
- /* Support routines for exposure events. */
- static void clear_cursor ();
-
- /* Output into a rectangle of an X-window (for frame F)
- the characters in f->phys_lines that overlap that rectangle.
- TOP and LEFT are the position of the upper left corner of the rectangle.
- ROWS and COLS are the size of the rectangle.
- Call this function with input blocked. */
-
- static void
- dumprectangle (f, left, top, cols, rows)
- struct frame *f;
- register int left, top, cols, rows;
- {
- register struct frame_glyphs *active_frame = FRAME_CURRENT_GLYPHS (f);
- int cursor_cleared = 0;
- int bottom, right;
- register int y;
-
- if (FRAME_GARBAGED_P (f))
- return;
-
- /* Express rectangle as four edges, instead of position-and-size. */
- bottom = top + rows;
- right = left + cols;
-
- #ifndef HAVE_X11 /* Window manger does this for X11. */
- {
- int intborder = f->display.x->internal_border_width;
-
- /* If the rectangle includes any of the internal border area,
- redisplay the border emphasis. */
- if (top < intborder || left < intborder
- || bottom > intborder + f->height * f->display.x->line_height
- || right > intborder + f->width * f->display.x->line_height)
- dumpborder (f, 0);
- }
- #endif /* not HAVE_X11 Window manger does this for X11. */
-
- /* Convert rectangle edges in pixels to edges in chars.
- Round down for left and top, up for right and bottom. */
- top = PIXEL_TO_CHAR_ROW (f, top);
- left = PIXEL_TO_CHAR_COL (f, left);
- bottom += (f->display.x->line_height - 1);
- right += (FONT_WIDTH (f->display.x->font) - 1);
- bottom = PIXEL_TO_CHAR_ROW (f, bottom);
- right = PIXEL_TO_CHAR_COL (f, right);
-
- /* Clip the rectangle to what can be visible. */
- if (left < 0)
- left = 0;
- if (top < 0)
- top = 0;
- if (right > f->width)
- right = f->width;
- if (bottom > f->height)
- bottom = f->height;
-
- /* Get size in chars of the rectangle. */
- cols = right - left;
- rows = bottom - top;
-
- /* If rectangle has zero area, return. */
- if (rows <= 0) return;
- if (cols <= 0) return;
-
- /* Turn off the cursor if it is in the rectangle.
- We will turn it back on afterward. */
- if ((f->phys_cursor_x >= left) && (f->phys_cursor_x < right)
- && (f->phys_cursor_y >= top) && (f->phys_cursor_y < bottom))
- {
- clear_cursor (f);
- cursor_cleared = 1;
- }
-
- /* Display the text in the rectangle, one text line at a time. */
-
- for (y = top; y < bottom; y++)
- {
- GLYPH *line = &active_frame->glyphs[y][left];
-
- if (! active_frame->enable[y] || left > active_frame->used[y])
- continue;
-
- dumpglyphs (f,
- CHAR_TO_PIXEL_COL (f, left),
- CHAR_TO_PIXEL_ROW (f, y),
- line, min (cols, active_frame->used[y] - left),
- active_frame->highlight[y], 0);
- }
-
- /* Turn the cursor on if we turned it off. */
-
- if (cursor_cleared)
- x_display_cursor (f, 1);
- }
-
- #ifndef HAVE_X11
- /* Process all queued ExposeRegion events. */
-
- static void
- dumpqueue ()
- {
- register int i;
- XExposeRegionEvent r;
-
- while (dequeue_event (&r, &x_expose_queue))
- {
- struct frame *f = x_window_to_frame (r.window);
- if (f->display.x->icon_desc == r.window)
- refreshicon (f);
- else
- dumprectangle (f, r.x, r.y, r.width, r.height);
- }
- XFlushQueue ();
- }
- #endif /* HAVE_X11 */
-
- /* Process all expose events that are pending, for X10.
- Redraws the cursor if necessary on any frame that
- is not in the process of being updated with update_frame. */
-
- #ifndef HAVE_X11
- static void
- x_do_pending_expose ()
- {
- int mask;
- struct frame *f;
- Lisp_Object tail, frame;
-
- if (expose_all_windows)
- {
- expose_all_windows = 0;
- for (tail = Vframe_list; CONSP (tail); tail = XCONS (tail)->cdr)
- {
- register int temp_width, temp_height;
- int intborder;
-
- frame = XCONS (tail)->car;
- if (XGCTYPE (frame) != Lisp_Frame)
- continue;
- f = XFRAME (frame);
- if (! FRAME_X_P (f))
- continue;
- if (!f->async_visible)
- continue;
- if (!f->display.x->needs_exposure)
- continue;
-
- intborder = f->display.x->internal_border_width;
-
- clear_cursor (f);
- XGetWindowInfo (FRAME_X_WINDOW (f), &windowinfo);
- temp_width = ((windowinfo.width - 2 * intborder
- - f->display.x->v_scroll_bar_width)
- / FONT_WIDTH (f->display.x->font));
- temp_height = ((windowinfo.height- 2 * intborder
- - f->display.x->h_scroll_bar_height)
- / f->display.x->line_height);
- if (temp_width != f->width || temp_height != f->height)
- {
- change_frame_size (f, max (1, temp_height),
- max (1, temp_width), 0, 1);
- x_resize_scroll_bars (f);
- }
- f->display.x->left_pos = windowinfo.x;
- f->display.x->top_pos = windowinfo.y;
- dumprectangle (f, 0, 0, PIXEL_WIDTH (f), PIXEL_HEIGHT (f));
- #if 0
- dumpborder (f, 0);
- #endif /* ! 0 */
- f->display.x->needs_exposure = 0;
- if (updating_frame != f)
- x_display_cursor (f, 1);
- XFlushQueue ();
- }
- }
- else
- /* Handle any individual-rectangle expose events queued
- for various windows. */
- #ifdef HAVE_X11
- ;
- #else /* ! defined (HAVE_X11) */
- dumpqueue ();
- #endif /* ! defined (HAVE_X11) */
- }
- #endif
-
- #ifdef HAVE_X11
- static void
- frame_highlight (frame)
- struct frame *frame;
- {
- /* We used to only do this if Vx_no_window_manager was non-nil, but
- the ICCCM (section 4.1.6) says that the window's border pixmap
- and border pixel are window attributes which are "private to the
- client", so we can always change it to whatever we want. */
- BLOCK_INPUT;
- XSetWindowBorder (x_current_display, FRAME_X_WINDOW (frame),
- frame->display.x->border_pixel);
- UNBLOCK_INPUT;
- x_display_cursor (frame, 1);
- }
-
- static void
- frame_unhighlight (frame)
- struct frame *frame;
- {
- /* We used to only do this if Vx_no_window_manager was non-nil, but
- the ICCCM (section 4.1.6) says that the window's border pixmap
- and border pixel are window attributes which are "private to the
- client", so we can always change it to whatever we want. */
- BLOCK_INPUT;
- XSetWindowBorderPixmap (x_current_display, FRAME_X_WINDOW (frame),
- frame->display.x->border_tile);
- UNBLOCK_INPUT;
- x_display_cursor (frame, 1);
- }
- #else /* ! defined (HAVE_X11) */
- /* Dump the border-emphasis of frame F.
- If F is selected, this is a lining of the same color as the border,
- just within the border, occupying a portion of the internal border.
- If F is not selected, it is background in the same place.
- If ALWAYS is 0, don't bother explicitly drawing if it's background.
-
- ALWAYS = 1 is used when a frame becomes selected or deselected.
- In that case, we also turn the cursor off and on again
- so it will appear in the proper shape (solid if selected; else hollow.) */
-
- static void
- dumpborder (f, always)
- struct frame *f;
- int always;
- {
- int thickness = f->display.x->internal_border_width / 2;
- int width = PIXEL_WIDTH (f);
- int height = PIXEL_HEIGHT (f);
- int pixel;
-
- if (f != selected_frame)
- {
- if (!always)
- return;
-
- pixel = f->display.x->background_pixel;
- }
- else
- {
- pixel = f->display.x->border_pixel;
- }
-
- XPixSet (FRAME_X_WINDOW (f), 0, 0, width, thickness, pixel);
- XPixSet (FRAME_X_WINDOW (f), 0, 0, thickness, height, pixel);
- XPixSet (FRAME_X_WINDOW (f), 0, height - thickness, width,
- thickness, pixel);
- XPixSet (FRAME_X_WINDOW (f), width - thickness, 0, thickness,
- height, pixel);
-
- if (always)
- x_display_cursor (f, 1);
- }
- #endif /* ! defined (HAVE_X11) */
-
- static void XTframe_rehighlight ();
-
- /* The focus has changed. Update the frames as necessary to reflect
- the new situation. Note that we can't change the selected frame
- here, because the lisp code we are interrupting might become confused.
- Each event gets marked with the frame in which it occurred, so the
- lisp code can tell when the switch took place by examining the events. */
-
- static void
- x_new_focus_frame (frame)
- struct frame *frame;
- {
- struct frame *old_focus = x_focus_frame;
- int events_enqueued = 0;
-
- if (frame != x_focus_frame)
- {
- /* Set this before calling other routines, so that they see
- the correct value of x_focus_frame. */
- x_focus_frame = frame;
-
- if (old_focus && old_focus->auto_lower)
- x_lower_frame (old_focus);
-
- #if 0
- selected_frame = frame;
- XSET (XWINDOW (selected_frame->selected_window)->frame,
- Lisp_Frame, selected_frame);
- Fselect_window (selected_frame->selected_window);
- choose_minibuf_frame ();
- #endif /* ! 0 */
-
- if (x_focus_frame && x_focus_frame->auto_raise)
- pending_autoraise_frame = x_focus_frame;
- else
- pending_autoraise_frame = 0;
- }
-
- XTframe_rehighlight ();
- }
-
-
- /* The focus has changed, or we have redirected a frame's focus to
- another frame (this happens when a frame uses a surrogate
- minibuffer frame). Shift the highlight as appropriate. */
- static void
- XTframe_rehighlight ()
- {
- struct frame *old_highlight = x_highlight_frame;
-
- if (x_focus_frame)
- {
- x_highlight_frame =
- ((XGCTYPE (FRAME_FOCUS_FRAME (x_focus_frame)) == Lisp_Frame)
- ? XFRAME (FRAME_FOCUS_FRAME (x_focus_frame))
- : x_focus_frame);
- if (! FRAME_LIVE_P (x_highlight_frame))
- {
- FRAME_FOCUS_FRAME (x_focus_frame) = Qnil;
- x_highlight_frame = x_focus_frame;
- }
- }
- else
- x_highlight_frame = 0;
-
- if (x_highlight_frame != old_highlight)
- {
- if (old_highlight)
- frame_unhighlight (old_highlight);
- if (x_highlight_frame)
- frame_highlight (x_highlight_frame);
- }
- }
-
- /* Keyboard processing - modifier keys, vendor-specific keysyms, etc. */
-
- /* Which modifier keys are on which modifier bits?
-
- With each keystroke, X returns eight bits indicating which modifier
- keys were held down when the key was pressed. The interpretation
- of the top five modifier bits depends on what keys are attached
- to them. If the Meta_L and Meta_R keysyms are on mod5, then mod5
- is the meta bit.
-
- x_meta_mod_mask is a mask containing the bits used for the meta key.
- It may have more than one bit set, if more than one modifier bit
- has meta keys on it. Basically, if EVENT is a KeyPress event,
- the meta key is pressed if (EVENT.state & x_meta_mod_mask) != 0.
-
- x_shift_lock_mask is LockMask if the XK_Shift_Lock keysym is on the
- lock modifier bit, or zero otherwise. Non-alphabetic keys should
- only be affected by the lock modifier bit if XK_Shift_Lock is in
- use; XK_Caps_Lock should only affect alphabetic keys. With this
- arrangement, the lock modifier should shift the character if
- (EVENT.state & x_shift_lock_mask) != 0. */
- static int x_meta_mod_mask, x_shift_lock_mask;
-
- /* These are like x_meta_mod_mask, but for different modifiers. */
- static int x_alt_mod_mask, x_super_mod_mask, x_hyper_mod_mask;
-
- /* Initialize mode_switch_bit and modifier_meaning. */
- static void
- x_find_modifier_meanings ()
- {
- int min_code, max_code;
- KeySym *syms;
- int syms_per_code;
- XModifierKeymap *mods;
-
- x_meta_mod_mask = 0;
- x_shift_lock_mask = 0;
- x_alt_mod_mask = 0;
- x_super_mod_mask = 0;
- x_hyper_mod_mask = 0;
-
- #ifdef HAVE_X11R4
- XDisplayKeycodes (x_current_display, &min_code, &max_code);
- #else
- min_code = x_current_display->min_keycode;
- max_code = x_current_display->max_keycode;
- #endif
-
- syms = XGetKeyboardMapping (x_current_display,
- min_code, max_code - min_code + 1,
- &syms_per_code);
- mods = XGetModifierMapping (x_current_display);
-
- /* Scan the modifier table to see which modifier bits the Meta and
- Alt keysyms are on. */
- {
- int row, col; /* The row and column in the modifier table. */
-
- for (row = 3; row < 8; row++)
- for (col = 0; col < mods->max_keypermod; col++)
- {
- KeyCode code =
- mods->modifiermap[(row * mods->max_keypermod) + col];
-
- /* Zeroes are used for filler. Skip them. */
- if (code == 0)
- continue;
-
- /* Are any of this keycode's keysyms a meta key? */
- {
- int code_col;
-
- for (code_col = 0; code_col < syms_per_code; code_col++)
- {
- int sym = syms[((code - min_code) * syms_per_code) + code_col];
-
- switch (sym)
- {
- case XK_Meta_L:
- case XK_Meta_R:
- x_meta_mod_mask |= (1 << row);
- break;
-
- case XK_Alt_L:
- case XK_Alt_R:
- x_alt_mod_mask |= (1 << row);
- break;
-
- case XK_Hyper_L:
- case XK_Hyper_R:
- x_hyper_mod_mask |= (1 << row);
- break;
-
- case XK_Super_L:
- case XK_Super_R:
- x_super_mod_mask |= (1 << row);
- break;
-
- case XK_Shift_Lock:
- /* Ignore this if it's not on the lock modifier. */
- if ((1 << row) == LockMask)
- x_shift_lock_mask = LockMask;
- break;
- }
- }
- }
- }
- }
-
- /* If we couldn't find any meta keys, accept any alt keys as meta keys. */
- if (! x_meta_mod_mask)
- {
- x_meta_mod_mask = x_alt_mod_mask;
- x_alt_mod_mask = 0;
- }
-
- /* If some keys are both alt and meta,
- make them just meta, not alt. */
- if (x_alt_mod_mask & x_meta_mod_mask)
- {
- x_alt_mod_mask &= ~x_meta_mod_mask;
- }
-
- XFree ((char *) syms);
- XFreeModifiermap (mods);
- }
-
- /* Convert between the modifier bits X uses and the modifier bits
- Emacs uses. */
- static unsigned int
- x_x_to_emacs_modifiers (state)
- unsigned int state;
- {
- return ( ((state & (ShiftMask | x_shift_lock_mask)) ? shift_modifier : 0)
- | ((state & ControlMask) ? ctrl_modifier : 0)
- | ((state & x_meta_mod_mask) ? meta_modifier : 0)
- | ((state & x_alt_mod_mask) ? alt_modifier : 0)
- | ((state & x_super_mod_mask) ? super_modifier : 0)
- | ((state & x_hyper_mod_mask) ? hyper_modifier : 0));
- }
-
- static unsigned int
- x_emacs_to_x_modifiers (state)
- unsigned int state;
- {
- return ( ((state & alt_modifier) ? x_alt_mod_mask : 0)
- | ((state & super_modifier) ? x_super_mod_mask : 0)
- | ((state & hyper_modifier) ? x_hyper_mod_mask : 0)
- | ((state & shift_modifier) ? ShiftMask : 0)
- | ((state & ctrl_modifier) ? ControlMask : 0)
- | ((state & meta_modifier) ? x_meta_mod_mask : 0));
- }
-
- /* Mouse clicks and mouse movement. Rah. */
- #ifdef HAVE_X11
-
- /* Given a pixel position (PIX_X, PIX_Y) on the frame F, return
- glyph co-ordinates in (*X, *Y). Set *BOUNDS to the rectangle
- that the glyph at X, Y occupies, if BOUNDS != 0.
- If NOCLIP is nonzero, do not force the value into range. */
-
- void
- pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip)
- FRAME_PTR f;
- register int pix_x, pix_y;
- register int *x, *y;
- XRectangle *bounds;
- int noclip;
- {
- /* Arrange for the division in PIXEL_TO_CHAR_COL etc. to round down
- even for negative values. */
- if (pix_x < 0)
- pix_x -= FONT_WIDTH ((f)->display.x->font) - 1;
- if (pix_y < 0)
- pix_y -= (f)->display.x->line_height - 1;
-
- pix_x = PIXEL_TO_CHAR_COL (f, pix_x);
- pix_y = PIXEL_TO_CHAR_ROW (f, pix_y);
-
- if (bounds)
- {
- bounds->width = FONT_WIDTH (f->display.x->font);
- bounds->height = f->display.x->line_height;
- bounds->x = CHAR_TO_PIXEL_COL (f, pix_x);
- bounds->y = CHAR_TO_PIXEL_ROW (f, pix_y);
- }
-
- if (!noclip)
- {
- if (pix_x < 0)
- pix_x = 0;
- else if (pix_x > f->width)
- pix_x = f->width;
-
- if (pix_y < 0)
- pix_y = 0;
- else if (pix_y > f->height)
- pix_y = f->height;
- }
-
- *x = pix_x;
- *y = pix_y;
- }
-
- void
- glyph_to_pixel_coords (f, x, y, pix_x, pix_y)
- FRAME_PTR f;
- register int x, y;
- register int *pix_x, *pix_y;
- {
- *pix_x = CHAR_TO_PIXEL_COL (f, x);
- *pix_y = CHAR_TO_PIXEL_ROW (f, y);
- }
-
- /* Prepare a mouse-event in *RESULT for placement in the input queue.
-
- If the event is a button press, then note that we have grabbed
- the mouse. */
-
- static Lisp_Object
- construct_mouse_click (result, event, f)
- struct input_event *result;
- XButtonEvent *event;
- struct frame *f;
- {
- /* Make the event type no_event; we'll change that when we decide
- otherwise. */
- result->kind = mouse_click;
- result->code = event->button - Button1;
- result->timestamp = event->time;
- result->modifiers = (x_x_to_emacs_modifiers (event->state)
- | (event->type == ButtonRelease
- ? up_modifier
- : down_modifier));
-
- {
- int row, column;
-
- #if 0
- pixel_to_glyph_coords (f, event->x, event->y, &column, &row, NULL, 0);
- XFASTINT (result->x) = column;
- XFASTINT (result->y) = row;
- #endif
- XSET (result->x, Lisp_Int, event->x);
- XSET (result->y, Lisp_Int, event->y);
- XSET (result->frame_or_window, Lisp_Frame, f);
- }
- }
-
- /* Prepare a menu-event in *RESULT for placement in the input queue. */
-
- static Lisp_Object
- construct_menu_click (result, event, f)
- struct input_event *result;
- XButtonEvent *event;
- struct frame *f;
- {
- /* Make the event type no_event; we'll change that when we decide
- otherwise. */
- result->kind = mouse_click;
- XSET (result->code, Lisp_Int, event->button - Button1);
- result->timestamp = event->time;
- result->modifiers = (x_x_to_emacs_modifiers (event->state)
- | (event->type == ButtonRelease
- ? up_modifier
- : down_modifier));
-
- XSET (result->x, Lisp_Int, event->x);
- XSET (result->y, Lisp_Int, -1);
- XSET (result->frame_or_window, Lisp_Frame, f);
- }
-
- /* Function to report a mouse movement to the mainstream Emacs code.
- The input handler calls this.
-
- We have received a mouse movement event, which is given in *event.
- If the mouse is over a different glyph than it was last time, tell
- the mainstream emacs code by setting mouse_moved. If not, ask for
- another motion event, so we can check again the next time it moves. */
-
- static void
- note_mouse_movement (frame, event)
- FRAME_PTR frame;
- XMotionEvent *event;
-
- {
- last_mouse_movement_time = event->time;
-
- if (event->window != FRAME_X_WINDOW (frame))
- {
- mouse_moved = 1;
- last_mouse_scroll_bar = Qnil;
-
- note_mouse_highlight (frame, -1, -1);
-
- /* Ask for another mouse motion event. */
- {
- int dummy;
- Window dummy_window;
-
- XQueryPointer (event->display, FRAME_X_WINDOW (frame),
- &dummy_window, &dummy_window,
- &dummy, &dummy, &dummy, &dummy,
- (unsigned int *) &dummy);
- }
- }
-
- /* Has the mouse moved off the glyph it was on at the last sighting? */
- else if (event->x < last_mouse_glyph.x
- || event->x >= last_mouse_glyph.x + last_mouse_glyph.width
- || event->y < last_mouse_glyph.y
- || event->y >= last_mouse_glyph.y + last_mouse_glyph.height)
- {
- mouse_moved = 1;
- last_mouse_scroll_bar = Qnil;
-
- note_mouse_highlight (frame, event->x, event->y);
-
- /* Ask for another mouse motion event. */
- {
- int dummy;
- Window dummy_window;
-
- XQueryPointer (event->display, FRAME_X_WINDOW (frame),
- &dummy_window, &dummy_window,
- &dummy, &dummy, &dummy, &dummy,
- (unsigned int *) &dummy);
- }
- }
- else
- {
- /* It's on the same glyph. Call XQueryPointer so we'll get an
- event the next time the mouse moves and we can see if it's
- *still* on the same glyph. */
- int dummy;
- Window dummy_window;
-
- XQueryPointer (event->display, FRAME_X_WINDOW (frame),
- &dummy_window, &dummy_window,
- &dummy, &dummy, &dummy, &dummy,
- (unsigned int *) &dummy);
- }
- }
-
- /* This is used for debugging, to turn off note_mouse_highlight. */
- static int disable_mouse_highlight;
-
- /* Take proper action when the mouse has moved to position X, Y on frame F
- as regards highlighting characters that have mouse-face properties.
- Also dehighlighting chars where the mouse was before.
- X and Y can be negative or out of range. */
-
- static void
- note_mouse_highlight (f, x, y)
- FRAME_PTR f;
- {
- int row, column, portion;
- XRectangle new_glyph;
- Lisp_Object window;
- struct window *w;
-
- if (disable_mouse_highlight)
- return;
-
- mouse_face_mouse_x = x;
- mouse_face_mouse_y = y;
- mouse_face_mouse_frame = f;
-
- if (mouse_face_defer)
- return;
-
- if (gc_in_progress)
- {
- mouse_face_deferred_gc = 1;
- return;
- }
-
- /* Find out which glyph the mouse is on. */
- pixel_to_glyph_coords (f, x, y, &column, &row,
- &new_glyph, x_mouse_grabbed);
-
- /* Which window is that in? */
- window = window_from_coordinates (f, column, row, &portion);
- w = XWINDOW (window);
-
- /* If we were displaying active text in another window, clear that. */
- if (! EQ (window, mouse_face_window))
- clear_mouse_face ();
-
- /* Are we in a window whose display is up to date?
- And verify the buffer's text has not changed. */
- if (WINDOWP (window) && portion == 0 && row >= 0 && column >= 0
- && row < FRAME_HEIGHT (f) && column < FRAME_WIDTH (f)
- && EQ (w->window_end_valid, w->buffer)
- && w->last_modified == BUF_MODIFF (XBUFFER (w->buffer)))
- {
- int *ptr = FRAME_CURRENT_GLYPHS (f)->charstarts[row];
- int i, pos;
-
- /* Find which buffer position the mouse corresponds to. */
- for (i = column; i >= 0; i--)
- if (ptr[i] > 0)
- break;
- pos = ptr[i];
- /* Is it outside the displayed active region (if any)? */
- if (pos <= 0)
- clear_mouse_face ();
- else if (! (EQ (window, mouse_face_window)
- && row >= mouse_face_beg_row
- && row <= mouse_face_end_row
- && (row > mouse_face_beg_row || column >= mouse_face_beg_col)
- && (row < mouse_face_end_row || column < mouse_face_end_col
- || mouse_face_past_end)))
- {
- Lisp_Object mouse_face, overlay, position;
- Lisp_Object *overlay_vec;
- int len, noverlays, ignor1;
- struct buffer *obuf;
- int obegv, ozv;
-
- /* If we get an out-of-range value, return now; avoid an error. */
- if (pos > BUF_Z (XBUFFER (w->buffer)))
- return;
-
- /* Make the window's buffer temporarily current for
- overlays_at and compute_char_face. */
- obuf = current_buffer;
- current_buffer = XBUFFER (w->buffer);
- obegv = BEGV;
- ozv = ZV;
- BEGV = BEG;
- ZV = Z;
-
- /* Yes. Clear the display of the old active region, if any. */
- clear_mouse_face ();
-
- /* Is this char mouse-active? */
- XSET (position, Lisp_Int, pos);
-
- len = 10;
- overlay_vec = (Lisp_Object *) xmalloc (len * sizeof (Lisp_Object));
-
- /* Put all the overlays we want in a vector in overlay_vec.
- Store the length in len. */
- noverlays = overlays_at (XINT (pos), 1, &overlay_vec, &len, &ignor1);
- noverlays = sort_overlays (overlay_vec, noverlays, w);
-
- /* Find the highest priority overlay that has a mouse-face prop. */
- overlay = Qnil;
- for (i = 0; i < noverlays; i++)
- {
- mouse_face = Foverlay_get (overlay_vec[i], Qmouse_face);
- if (!NILP (mouse_face))
- {
- overlay = overlay_vec[i];
- break;
- }
- }
- free (overlay_vec);
- /* If no overlay applies, get a text property. */
- if (NILP (overlay))
- mouse_face = Fget_text_property (position, Qmouse_face, w->buffer);
-
- /* Handle the overlay case. */
- if (! NILP (overlay))
- {
- /* Find the range of text around this char that
- should be active. */
- Lisp_Object before, after;
- int ignore;
-
- before = Foverlay_start (overlay);
- after = Foverlay_end (overlay);
- /* Record this as the current active region. */
- fast_find_position (window, before, &mouse_face_beg_col,
- &mouse_face_beg_row);
- mouse_face_past_end
- = !fast_find_position (window, after, &mouse_face_end_col,
- &mouse_face_end_row);
- mouse_face_window = window;
- mouse_face_face_id = compute_char_face (f, w, pos, 0, 0,
- &ignore, pos + 1, 1);
-
- /* Display it as active. */
- show_mouse_face (1);
- }
- /* Handle the text property case. */
- else if (! NILP (mouse_face))
- {
- /* Find the range of text around this char that
- should be active. */
- Lisp_Object before, after, beginning, end;
- int ignore;
-
- beginning = Fmarker_position (w->start);
- XSET (end, Lisp_Int,
- (BUF_Z (XBUFFER (w->buffer))
- - XFASTINT (w->window_end_pos)));
- before
- = Fprevious_single_property_change (make_number (pos + 1),
- Qmouse_face,
- w->buffer, beginning);
- after
- = Fnext_single_property_change (position, Qmouse_face,
- w->buffer, end);
- /* Record this as the current active region. */
- fast_find_position (window, before, &mouse_face_beg_col,
- &mouse_face_beg_row);
- mouse_face_past_end
- = !fast_find_position (window, after, &mouse_face_end_col,
- &mouse_face_end_row);
- mouse_face_window = window;
- mouse_face_face_id
- = compute_char_face (f, w, pos, 0, 0,
- &ignore, pos + 1, 1);
-
- /* Display it as active. */
- show_mouse_face (1);
- }
- BEGV = obegv;
- ZV = ozv;
- current_buffer = obuf;
- }
- }
- }
-
- /* Find the row and column of position POS in window WINDOW.
- Store them in *COLUMNP and *ROWP.
- This assumes display in WINDOW is up to date.
- If POS is above start of WINDOW, return coords
- of start of first screen line.
- If POS is after end of WINDOW, return coords of end of last screen line.
-
- Value is 1 if POS is in range, 0 if it was off screen. */
-
- static int
- fast_find_position (window, pos, columnp, rowp)
- Lisp_Object window;
- int pos;
- int *columnp, *rowp;
- {
- struct window *w = XWINDOW (window);
- FRAME_PTR f = XFRAME (WINDOW_FRAME (w));
- int i;
- int row = 0;
- int left = w->left;
- int top = w->top;
- int height = XFASTINT (w->height) - ! MINI_WINDOW_P (w);
- int width = window_internal_width (w);
- int *charstarts;
- int lastcol;
-
- /* Find the right row. */
- for (i = 0;
- i < height;
- i++)
- {
- int linestart = FRAME_CURRENT_GLYPHS (f)->charstarts[top + i][left];
- if (linestart > pos)
- break;
- if (linestart > 0)
- row = i;
- }
-
- /* Find the right column with in it. */
- charstarts = FRAME_CURRENT_GLYPHS (f)->charstarts[top + row];
- lastcol = left;
- for (i = 0; i < width; i++)
- {
- if (charstarts[left + i] == pos)
- {
- *rowp = row + top;
- *columnp = i + left;
- return 1;
- }
- else if (charstarts[left + i] > pos)
- break;
- else if (charstarts[left + i] > 0)
- lastcol = left + i;
- }
-
- *rowp = row + top;
- *columnp = lastcol;
- return 0;
- }
-
- /* Display the active region described by mouse_face_*
- in its mouse-face if HL > 0, in its normal face if HL = 0. */
-
- static void
- show_mouse_face (hl)
- int hl;
- {
- struct window *w = XWINDOW (mouse_face_window);
- int width = window_internal_width (w);
- FRAME_PTR f = XFRAME (WINDOW_FRAME (w));
- int i;
- int cursor_off = 0;
- int old_curs_x = curs_x;
- int old_curs_y = curs_y;
-
- /* Set these variables temporarily
- so that if we have to turn the cursor off and on again
- we will put it back at the same place. */
- curs_x = f->phys_cursor_x;
- curs_y = f->phys_cursor_y;
-
- for (i = mouse_face_beg_row; i <= mouse_face_end_row; i++)
- {
- int column = (i == mouse_face_beg_row ? mouse_face_beg_col : w->left);
- int endcolumn = (i == mouse_face_end_row ? mouse_face_end_col : w->left + width);
- endcolumn = min (endcolumn, FRAME_CURRENT_GLYPHS (f)->used[i]);
-
- /* If the cursor's in the text we are about to rewrite,
- turn the cursor off. */
- if (i == curs_y
- && curs_x >= mouse_face_beg_col - 1 && curs_x <= mouse_face_end_col)
- {
- x_display_cursor (f, 0);
- cursor_off = 1;
- }
-
- dumpglyphs (f,
- CHAR_TO_PIXEL_COL (f, column),
- CHAR_TO_PIXEL_ROW (f, i),
- FRAME_CURRENT_GLYPHS (f)->glyphs[i] + column,
- endcolumn - column,
- /* Highlight with mouse face if hl > 0. */
- hl > 0 ? 3 : 0, 0);
- }
-
- /* If we turned the cursor off, turn it back on. */
- if (cursor_off)
- x_display_cursor (f, 1);
-
- curs_x = old_curs_x;
- curs_y = old_curs_y;
-
- /* Change the mouse cursor according to the value of HL. */
- if (hl > 0)
- XDefineCursor (XDISPLAY FRAME_X_WINDOW (f), f->display.x->cross_cursor);
- else
- XDefineCursor (XDISPLAY FRAME_X_WINDOW (f), f->display.x->text_cursor);
- }
-
- /* Clear out the mouse-highlighted active region.
- Redraw it unhighlighted first. */
-
- static void
- clear_mouse_face ()
- {
- if (! NILP (mouse_face_window))
- show_mouse_face (0);
-
- mouse_face_beg_row = mouse_face_beg_col = -1;
- mouse_face_end_row = mouse_face_end_col = -1;
- mouse_face_window = Qnil;
- }
-
- static struct scroll_bar *x_window_to_scroll_bar ();
- static void x_scroll_bar_report_motion ();
-
- /* Return the current position of the mouse.
-
- If the mouse movement started in a scroll bar, set *f, *bar_window,
- and *part to the frame, window, and scroll bar part that the mouse
- is over. Set *x and *y to the portion and whole of the mouse's
- position on the scroll bar.
-
- If the mouse movement started elsewhere, set *f to the frame the
- mouse is on, *bar_window to nil, and *x and *y to the character cell
- the mouse is over.
-
- Set *time to the server timestamp for the time at which the mouse
- was at this position.
-
- Don't store anything if we don't have a valid set of values to report.
-
- This clears the mouse_moved flag, so we can wait for the next mouse
- movement. This also calls XQueryPointer, which will cause the
- server to give us another MotionNotify when the mouse moves
- again. */
-
- static void
- XTmouse_position (f, bar_window, part, x, y, time)
- FRAME_PTR *f;
- Lisp_Object *bar_window;
- enum scroll_bar_part *part;
- Lisp_Object *x, *y;
- unsigned long *time;
- {
- FRAME_PTR f1;
-
- BLOCK_INPUT;
-
- if (! NILP (last_mouse_scroll_bar))
- x_scroll_bar_report_motion (f, bar_window, part, x, y, time);
- else
- {
- Window root;
- int root_x, root_y;
-
- Window dummy_window;
- int dummy;
-
- mouse_moved = 0;
- last_mouse_scroll_bar = Qnil;
-
- /* Figure out which root window we're on. */
- XQueryPointer (x_current_display,
- DefaultRootWindow (x_current_display),
-
- /* The root window which contains the pointer. */
- &root,
-
- /* Trash which we can't trust if the pointer is on
- a different screen. */
- &dummy_window,
-
- /* The position on that root window. */
- &root_x, &root_y,
-
- /* More trash we can't trust. */
- &dummy, &dummy,
-
- /* Modifier keys and pointer buttons, about which
- we don't care. */
- (unsigned int *) &dummy);
-
- /* Now we have a position on the root; find the innermost window
- containing the pointer. */
- {
- Window win, child;
- int win_x, win_y;
- int parent_x, parent_y;
-
- win = root;
-
- if (x_mouse_grabbed && last_mouse_frame
- && FRAME_LIVE_P (last_mouse_frame))
- {
- /* If mouse was grabbed on a frame, give coords for that frame
- even if the mouse is now outside it. */
- XTranslateCoordinates (x_current_display,
-
- /* From-window, to-window. */
- root, FRAME_X_WINDOW (last_mouse_frame),
-
- /* From-position, to-position. */
- root_x, root_y, &win_x, &win_y,
-
- /* Child of win. */
- &child);
- f1 = last_mouse_frame;
- }
- else
- {
- while (1)
- {
- XTranslateCoordinates (x_current_display,
-
- /* From-window, to-window. */
- root, win,
-
- /* From-position, to-position. */
- root_x, root_y, &win_x, &win_y,
-
- /* Child of win. */
- &child);
-
- if (child == None)
- break;
-
- win = child;
- parent_x = win_x;
- parent_y = win_y;
- }
-
- /* Now we know that:
- win is the innermost window containing the pointer
- (XTC says it has no child containing the pointer),
- win_x and win_y are the pointer's position in it
- (XTC did this the last time through), and
- parent_x and parent_y are the pointer's position in win's parent.
- (They are what win_x and win_y were when win was child.
- If win is the root window, it has no parent, and
- parent_{x,y} are invalid, but that's okay, because we'll
- never use them in that case.) */
-
- /* Is win one of our frames? */
- f1 = x_any_window_to_frame (win);
- }
-
- /* If not, is it one of our scroll bars? */
- if (! f1)
- {
- struct scroll_bar *bar = x_window_to_scroll_bar (win);
-
- if (bar)
- {
- f1 = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
- win_x = parent_x;
- win_y = parent_y;
- }
- }
-
- if (f1)
- {
- int ignore1, ignore2;
-
- /* Ok, we found a frame. Store all the values. */
-
- pixel_to_glyph_coords (f1, win_x, win_y, &ignore1, &ignore2,
- &last_mouse_glyph, x_mouse_grabbed);
-
- *bar_window = Qnil;
- *part = 0;
- *f = f1;
- XSET (*x, Lisp_Int, win_x);
- XSET (*y, Lisp_Int, win_y);
- *time = last_mouse_movement_time;
- }
- }
- }
-
- UNBLOCK_INPUT;
- }
-
- #else /* ! defined (HAVE_X11) */
- #define XEvent XKeyPressedEvent
- #endif /* ! defined (HAVE_X11) */
-
- /* Scroll bar support. */
-
- /* Given an X window ID, find the struct scroll_bar which manages it.
- This can be called in GC, so we have to make sure to strip off mark
- bits. */
- static struct scroll_bar *
- x_window_to_scroll_bar (window_id)
- Window window_id;
- {
- Lisp_Object tail, frame;
-
- for (tail = Vframe_list;
- XGCTYPE (tail) == Lisp_Cons;
- tail = XCONS (tail)->cdr)
- {
- Lisp_Object frame, bar, condemned;
-
- frame = XCONS (tail)->car;
- /* All elements of Vframe_list should be frames. */
- if (XGCTYPE (frame) != Lisp_Frame)
- abort ();
-
- /* Scan this frame's scroll bar list for a scroll bar with the
- right window ID. */
- condemned = FRAME_CONDEMNED_SCROLL_BARS (XFRAME (frame));
- for (bar = FRAME_SCROLL_BARS (XFRAME (frame));
- /* This trick allows us to search both the ordinary and
- condemned scroll bar lists with one loop. */
- ! GC_NILP (bar) || (bar = condemned,
- condemned = Qnil,
- ! GC_NILP (bar));
- bar = XSCROLL_BAR (bar)->next)
- if (SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)) == window_id)
- return XSCROLL_BAR (bar);
- }
-
- return 0;
- }
-
- /* Open a new X window to serve as a scroll bar, and return the
- scroll bar vector for it. */
- static struct scroll_bar *
- x_scroll_bar_create (window, top, left, width, height)
- struct window *window;
- int top, left, width, height;
- {
- FRAME_PTR frame = XFRAME (WINDOW_FRAME (window));
- struct scroll_bar *bar =
- XSCROLL_BAR (Fmake_vector (make_number (SCROLL_BAR_VEC_SIZE), Qnil));
-
- BLOCK_INPUT;
-
- {
- XSetWindowAttributes a;
- unsigned long mask;
- a.background_pixel = frame->display.x->background_pixel;
- a.event_mask = (ButtonPressMask | ButtonReleaseMask
- | ButtonMotionMask | PointerMotionHintMask
- | ExposureMask);
- a.cursor = x_vertical_scroll_bar_cursor;
-
- mask = (CWBackPixel | CWEventMask | CWCursor);
-
- #if 0
-
- ac = 0;
- XtSetArg (al[ac], XtNx, left); ac++;
- XtSetArg (al[ac], XtNy, top); ac++;
- XtSetArg (al[ac], XtNwidth, width); ac++;
- XtSetArg (al[ac], XtNheight, height); ac++;
- XtSetArg (al[ac], XtNborderWidth, 0); ac++;
- sb_widget = XtCreateManagedWidget ("box",
- boxWidgetClass,
- frame->display.x->edit_widget, al, ac);
- SET_SCROLL_BAR_X_WINDOW
- (bar, sb_widget->core.window);
- #endif
- SET_SCROLL_BAR_X_WINDOW
- (bar,
- XCreateWindow (x_current_display, FRAME_X_WINDOW (frame),
-
- /* Position and size of scroll bar. */
- left, top, width, height,
-
- /* Border width, depth, class, and visual. */
- 0, CopyFromParent, CopyFromParent, CopyFromParent,
-
- /* Attributes. */
- mask, &a));
- }
-
- XSET (bar->window, Lisp_Window, window);
- XSET (bar->top, Lisp_Int, top);
- XSET (bar->left, Lisp_Int, left);
- XSET (bar->width, Lisp_Int, width);
- XSET (bar->height, Lisp_Int, height);
- XSET (bar->start, Lisp_Int, 0);
- XSET (bar->end, Lisp_Int, 0);
- bar->dragging = Qnil;
-
- /* Add bar to its frame's list of scroll bars. */
- bar->next = FRAME_SCROLL_BARS (frame);
- bar->prev = Qnil;
- XSET (FRAME_SCROLL_BARS (frame), Lisp_Vector, bar);
- if (! NILP (bar->next))
- XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar);
-
- XMapWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar));
-
- UNBLOCK_INPUT;
-
- return bar;
- }
-
- /* Draw BAR's handle in the proper position.
- If the handle is already drawn from START to END, don't bother
- redrawing it, unless REBUILD is non-zero; in that case, always
- redraw it. (REBUILD is handy for drawing the handle after expose
- events.)
-
- Normally, we want to constrain the start and end of the handle to
- fit inside its rectangle, but if the user is dragging the scroll bar
- handle, we want to let them drag it down all the way, so that the
- bar's top is as far down as it goes; otherwise, there's no way to
- move to the very end of the buffer. */
- static void
- x_scroll_bar_set_handle (bar, start, end, rebuild)
- struct scroll_bar *bar;
- int start, end;
- int rebuild;
- {
- int dragging = ! NILP (bar->dragging);
- Window w = SCROLL_BAR_X_WINDOW (bar);
- GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc;
-
- /* If the display is already accurate, do nothing. */
- if (! rebuild
- && start == XINT (bar->start)
- && end == XINT (bar->end))
- return;
-
- BLOCK_INPUT;
-
- {
- int inside_width = VERTICAL_SCROLL_BAR_INSIDE_WIDTH (XINT (bar->width));
- int inside_height = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height));
- int top_range = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height));
-
- /* Make sure the values are reasonable, and try to preserve
- the distance between start and end. */
- {
- int length = end - start;
-
- if (start < 0)
- start = 0;
- else if (start > top_range)
- start = top_range;
- end = start + length;
-
- if (end < start)
- end = start;
- else if (end > top_range && ! dragging)
- end = top_range;
- }
-
- /* Store the adjusted setting in the scroll bar. */
- XSET (bar->start, Lisp_Int, start);
- XSET (bar->end, Lisp_Int, end);
-
- /* Clip the end position, just for display. */
- if (end > top_range)
- end = top_range;
-
- /* Draw bottom positions VERTICAL_SCROLL_BAR_MIN_HANDLE pixels
- below top positions, to make sure the handle is always at least
- that many pixels tall. */
- end += VERTICAL_SCROLL_BAR_MIN_HANDLE;
-
- /* Draw the empty space above the handle. Note that we can't clear
- zero-height areas; that means "clear to end of window." */
- if (0 < start)
- XClearArea (x_current_display, w,
-
- /* x, y, width, height, and exposures. */
- VERTICAL_SCROLL_BAR_LEFT_BORDER,
- VERTICAL_SCROLL_BAR_TOP_BORDER,
- inside_width, start,
- False);
-
- /* Draw the handle itself. */
- XFillRectangle (x_current_display, w, gc,
-
- /* x, y, width, height */
- VERTICAL_SCROLL_BAR_LEFT_BORDER,
- VERTICAL_SCROLL_BAR_TOP_BORDER + start,
- inside_width, end - start);
-
-
- /* Draw the empty space below the handle. Note that we can't
- clear zero-height areas; that means "clear to end of window." */
- if (end < inside_height)
- XClearArea (x_current_display, w,
-
- /* x, y, width, height, and exposures. */
- VERTICAL_SCROLL_BAR_LEFT_BORDER,
- VERTICAL_SCROLL_BAR_TOP_BORDER + end,
- inside_width, inside_height - end,
- False);
-
- }
-
- UNBLOCK_INPUT;
- }
-
- /* Move a scroll bar around on the screen, to accommodate changing
- window configurations. */
- static void
- x_scroll_bar_move (bar, top, left, width, height)
- struct scroll_bar *bar;
- int top, left, width, height;
- {
- BLOCK_INPUT;
-
- {
- XWindowChanges wc;
- unsigned int mask = 0;
-
- wc.x = left;
- wc.y = top;
- wc.width = width;
- wc.height = height;
-
- if (left != XINT (bar->left)) mask |= CWX;
- if (top != XINT (bar->top)) mask |= CWY;
- if (width != XINT (bar->width)) mask |= CWWidth;
- if (height != XINT (bar->height)) mask |= CWHeight;
-
- if (mask)
- XConfigureWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar),
- mask, &wc);
- }
-
- XSET (bar->left, Lisp_Int, left);
- XSET (bar->top, Lisp_Int, top);
- XSET (bar->width, Lisp_Int, width);
- XSET (bar->height, Lisp_Int, height);
-
- UNBLOCK_INPUT;
- }
-
- /* Destroy the X window for BAR, and set its Emacs window's scroll bar
- to nil. */
- static void
- x_scroll_bar_remove (bar)
- struct scroll_bar *bar;
- {
- FRAME_PTR f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
-
- BLOCK_INPUT;
-
- /* Destroy the window. */
- XDestroyWindow (x_current_display, SCROLL_BAR_X_WINDOW (bar));
-
- /* Disassociate this scroll bar from its window. */
- XWINDOW (bar->window)->vertical_scroll_bar = Qnil;
-
- UNBLOCK_INPUT;
- }
-
- /* Set the handle of the vertical scroll bar for WINDOW to indicate
- that we are displaying PORTION characters out of a total of WHOLE
- characters, starting at POSITION. If WINDOW has no scroll bar,
- create one. */
- static void
- XTset_vertical_scroll_bar (window, portion, whole, position)
- struct window *window;
- int portion, whole, position;
- {
- FRAME_PTR f = XFRAME (WINDOW_FRAME (window));
- int top = XINT (window->top);
- int left = WINDOW_VERTICAL_SCROLL_BAR_COLUMN (window);
- int height = WINDOW_VERTICAL_SCROLL_BAR_HEIGHT (window);
-
- /* Where should this scroll bar be, pixelwise? */
- int pixel_top = CHAR_TO_PIXEL_ROW (f, top);
- int pixel_left = CHAR_TO_PIXEL_COL (f, left);
- int pixel_width = VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f);
- int pixel_height = VERTICAL_SCROLL_BAR_PIXEL_HEIGHT (f, height);
-
- struct scroll_bar *bar;
-
- /* Does the scroll bar exist yet? */
- if (NILP (window->vertical_scroll_bar))
- bar = x_scroll_bar_create (window,
- pixel_top, pixel_left,
- pixel_width, pixel_height);
- else
- {
- /* It may just need to be moved and resized. */
- bar = XSCROLL_BAR (window->vertical_scroll_bar);
- x_scroll_bar_move (bar, pixel_top, pixel_left, pixel_width, pixel_height);
- }
-
- /* Set the scroll bar's current state, unless we're currently being
- dragged. */
- if (NILP (bar->dragging))
- {
- int top_range =
- VERTICAL_SCROLL_BAR_TOP_RANGE (pixel_height);
-
- if (whole == 0)
- x_scroll_bar_set_handle (bar, 0, top_range, 0);
- else
- {
- int start = ((double) position * top_range) / whole;
- int end = ((double) (position + portion) * top_range) / whole;
-
- x_scroll_bar_set_handle (bar, start, end, 0);
- }
- }
-
- XSET (window->vertical_scroll_bar, Lisp_Vector, bar);
- }
-
-
- /* The following three hooks are used when we're doing a thorough
- redisplay of the frame. We don't explicitly know which scroll bars
- are going to be deleted, because keeping track of when windows go
- away is a real pain - "Can you say set-window-configuration, boys
- and girls?" Instead, we just assert at the beginning of redisplay
- that *all* scroll bars are to be removed, and then save a scroll bar
- from the fiery pit when we actually redisplay its window. */
-
- /* Arrange for all scroll bars on FRAME to be removed at the next call
- to `*judge_scroll_bars_hook'. A scroll bar may be spared if
- `*redeem_scroll_bar_hook' is applied to its window before the judgement. */
- static void
- XTcondemn_scroll_bars (frame)
- FRAME_PTR frame;
- {
- /* The condemned list should be empty at this point; if it's not,
- then the rest of Emacs isn't using the condemn/redeem/judge
- protocol correctly. */
- if (! NILP (FRAME_CONDEMNED_SCROLL_BARS (frame)))
- abort ();
-
- /* Move them all to the "condemned" list. */
- FRAME_CONDEMNED_SCROLL_BARS (frame) = FRAME_SCROLL_BARS (frame);
- FRAME_SCROLL_BARS (frame) = Qnil;
- }
-
- /* Unmark WINDOW's scroll bar for deletion in this judgement cycle.
- Note that WINDOW isn't necessarily condemned at all. */
- static void
- XTredeem_scroll_bar (window)
- struct window *window;
- {
- struct scroll_bar *bar;
-
- /* We can't redeem this window's scroll bar if it doesn't have one. */
- if (NILP (window->vertical_scroll_bar))
- abort ();
-
- bar = XSCROLL_BAR (window->vertical_scroll_bar);
-
- /* Unlink it from the condemned list. */
- {
- FRAME_PTR f = XFRAME (WINDOW_FRAME (window));
-
- if (NILP (bar->prev))
- {
- /* If the prev pointer is nil, it must be the first in one of
- the lists. */
- if (EQ (FRAME_SCROLL_BARS (f), window->vertical_scroll_bar))
- /* It's not condemned. Everything's fine. */
- return;
- else if (EQ (FRAME_CONDEMNED_SCROLL_BARS (f),
- window->vertical_scroll_bar))
- FRAME_CONDEMNED_SCROLL_BARS (f) = bar->next;
- else
- /* If its prev pointer is nil, it must be at the front of
- one or the other! */
- abort ();
- }
- else
- XSCROLL_BAR (bar->prev)->next = bar->next;
-
- if (! NILP (bar->next))
- XSCROLL_BAR (bar->next)->prev = bar->prev;
-
- bar->next = FRAME_SCROLL_BARS (f);
- bar->prev = Qnil;
- XSET (FRAME_SCROLL_BARS (f), Lisp_Vector, bar);
- if (! NILP (bar->next))
- XSET (XSCROLL_BAR (bar->next)->prev, Lisp_Vector, bar);
- }
- }
-
- /* Remove all scroll bars on FRAME that haven't been saved since the
- last call to `*condemn_scroll_bars_hook'. */
- static void
- XTjudge_scroll_bars (f)
- FRAME_PTR f;
- {
- Lisp_Object bar, next;
-
- bar = FRAME_CONDEMNED_SCROLL_BARS (f);
-
- /* Clear out the condemned list now so we won't try to process any
- more events on the hapless scroll bars. */
- FRAME_CONDEMNED_SCROLL_BARS (f) = Qnil;
-
- for (; ! NILP (bar); bar = next)
- {
- struct scroll_bar *b = XSCROLL_BAR (bar);
-
- x_scroll_bar_remove (b);
-
- next = b->next;
- b->next = b->prev = Qnil;
- }
-
- /* Now there should be no references to the condemned scroll bars,
- and they should get garbage-collected. */
- }
-
-
- /* Handle an Expose or GraphicsExpose event on a scroll bar.
-
- This may be called from a signal handler, so we have to ignore GC
- mark bits. */
- static void
- x_scroll_bar_expose (bar, event)
- struct scroll_bar *bar;
- XEvent *event;
- {
- Window w = SCROLL_BAR_X_WINDOW (bar);
- GC gc = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)))->display.x->normal_gc;
-
- BLOCK_INPUT;
-
- x_scroll_bar_set_handle (bar, XINT (bar->start), XINT (bar->end), 1);
-
- /* Draw a one-pixel border just inside the edges of the scroll bar. */
- XDrawRectangle (x_current_display, w, gc,
-
- /* x, y, width, height */
- 0, 0, XINT (bar->width) - 1, XINT (bar->height) - 1);
-
- UNBLOCK_INPUT;
- }
-
- /* Handle a mouse click on the scroll bar BAR. If *EMACS_EVENT's kind
- is set to something other than no_event, it is enqueued.
-
- This may be called from a signal handler, so we have to ignore GC
- mark bits. */
- static void
- x_scroll_bar_handle_click (bar, event, emacs_event)
- struct scroll_bar *bar;
- XEvent *event;
- struct input_event *emacs_event;
- {
- if (XGCTYPE (bar->window) != Lisp_Window)
- abort ();
-
- emacs_event->kind = scroll_bar_click;
- emacs_event->code = event->xbutton.button - Button1;
- emacs_event->modifiers =
- (x_x_to_emacs_modifiers (event->xbutton.state)
- | (event->type == ButtonRelease
- ? up_modifier
- : down_modifier));
- emacs_event->frame_or_window = bar->window;
- emacs_event->timestamp = event->xbutton.time;
- {
- int internal_height =
- VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height));
- int top_range =
- VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height));
- int y = event->xbutton.y - VERTICAL_SCROLL_BAR_TOP_BORDER;
-
- if (y < 0) y = 0;
- if (y > top_range) y = top_range;
-
- if (y < XINT (bar->start))
- emacs_event->part = scroll_bar_above_handle;
- else if (y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE)
- emacs_event->part = scroll_bar_handle;
- else
- emacs_event->part = scroll_bar_below_handle;
-
- /* Just because the user has clicked on the handle doesn't mean
- they want to drag it. Lisp code needs to be able to decide
- whether or not we're dragging. */
- #if 0
- /* If the user has just clicked on the handle, record where they're
- holding it. */
- if (event->type == ButtonPress
- && emacs_event->part == scroll_bar_handle)
- XSET (bar->dragging, Lisp_Int, y - XINT (bar->start));
- #endif
-
- /* If the user has released the handle, set it to its final position. */
- if (event->type == ButtonRelease
- && ! NILP (bar->dragging))
- {
- int new_start = y - XINT (bar->dragging);
- int new_end = new_start + (XINT (bar->end) - XINT (bar->start));
-
- x_scroll_bar_set_handle (bar, new_start, new_end, 0);
- bar->dragging = Qnil;
- }
-
- /* Same deal here as the other #if 0. */
- #if 0
- /* Clicks on the handle are always reported as occurring at the top of
- the handle. */
- if (emacs_event->part == scroll_bar_handle)
- emacs_event->x = bar->start;
- else
- XSET (emacs_event->x, Lisp_Int, y);
- #else
- XSET (emacs_event->x, Lisp_Int, y);
- #endif
-
- XSET (emacs_event->y, Lisp_Int, top_range);
- }
- }
-
- /* Handle some mouse motion while someone is dragging the scroll bar.
-
- This may be called from a signal handler, so we have to ignore GC
- mark bits. */
- static void
- x_scroll_bar_note_movement (bar, event)
- struct scroll_bar *bar;
- XEvent *event;
- {
- last_mouse_movement_time = event->xmotion.time;
-
- mouse_moved = 1;
- XSET (last_mouse_scroll_bar, Lisp_Vector, bar);
-
- /* If we're dragging the bar, display it. */
- if (! GC_NILP (bar->dragging))
- {
- /* Where should the handle be now? */
- int new_start = event->xmotion.y - XINT (bar->dragging);
-
- if (new_start != XINT (bar->start))
- {
- int new_end = new_start + (XINT (bar->end) - XINT (bar->start));
-
- x_scroll_bar_set_handle (bar, new_start, new_end, 0);
- }
- }
-
- /* Call XQueryPointer so we'll get an event the next time the mouse
- moves and we can see *still* on the same position. */
- {
- int dummy;
- Window dummy_window;
-
- XQueryPointer (event->xmotion.display, event->xmotion.window,
- &dummy_window, &dummy_window,
- &dummy, &dummy, &dummy, &dummy,
- (unsigned int *) &dummy);
- }
- }
-
- /* Return information to the user about the current position of the mouse
- on the scroll bar. */
- static void
- x_scroll_bar_report_motion (f, bar_window, part, x, y, time)
- FRAME_PTR *f;
- Lisp_Object *bar_window;
- enum scroll_bar_part *part;
- Lisp_Object *x, *y;
- unsigned long *time;
- {
- struct scroll_bar *bar = XSCROLL_BAR (last_mouse_scroll_bar);
- int win_x, win_y;
- Window dummy_window;
- int dummy_coord;
- unsigned int dummy_mask;
-
- BLOCK_INPUT;
-
- /* Get the mouse's position relative to the scroll bar window, and
- report that. */
- if (! XQueryPointer (x_current_display,
- SCROLL_BAR_X_WINDOW (bar),
-
- /* Root, child, root x and root y. */
- &dummy_window, &dummy_window,
- &dummy_coord, &dummy_coord,
-
- /* Position relative to scroll bar. */
- &win_x, &win_y,
-
- /* Mouse buttons and modifier keys. */
- &dummy_mask))
- *f = 0;
- else
- {
- int inside_height
- = VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (XINT (bar->height));
- int top_range
- = VERTICAL_SCROLL_BAR_TOP_RANGE (XINT (bar->height));
-
- win_y -= VERTICAL_SCROLL_BAR_TOP_BORDER;
-
- if (! NILP (bar->dragging))
- win_y -= XINT (bar->dragging);
-
- if (win_y < 0)
- win_y = 0;
- if (win_y > top_range)
- win_y = top_range;
-
- *f = XFRAME (WINDOW_FRAME (XWINDOW (bar->window)));
- *bar_window = bar->window;
-
- if (! NILP (bar->dragging))
- *part = scroll_bar_handle;
- else if (win_y < XINT (bar->start))
- *part = scroll_bar_above_handle;
- else if (win_y < XINT (bar->end) + VERTICAL_SCROLL_BAR_MIN_HANDLE)
- *part = scroll_bar_handle;
- else
- *part = scroll_bar_below_handle;
-
- XSET (*x, Lisp_Int, win_y);
- XSET (*y, Lisp_Int, top_range);
-
- mouse_moved = 0;
- last_mouse_scroll_bar = Qnil;
- }
-
- *time = last_mouse_movement_time;
-
- UNBLOCK_INPUT;
- }
-
-
- /* The screen has been cleared so we may have changed foreground or
- background colors, and the scroll bars may need to be redrawn.
- Clear out the scroll bars, and ask for expose events, so we can
- redraw them. */
-
- x_scroll_bar_clear (f)
- FRAME_PTR f;
- {
- Lisp_Object bar;
-
- for (bar = FRAME_SCROLL_BARS (f);
- XTYPE (bar) == Lisp_Vector;
- bar = XSCROLL_BAR (bar)->next)
- XClearArea (x_current_display, SCROLL_BAR_X_WINDOW (XSCROLL_BAR (bar)),
- 0, 0, 0, 0, True);
- }
-
- /* This processes Expose events from the menubar specific X event
- loop in menubar.c. This allows to redisplay the frame if necessary
- when handling menubar or popup items. */
-
- void
- process_expose_from_menu (event)
- XEvent event;
- {
- FRAME_PTR f;
-
- BLOCK_INPUT;
-
- f = x_window_to_frame (event.xexpose.window);
- if (f)
- {
- if (f->async_visible == 0)
- {
- f->async_visible = 1;
- f->async_iconified = 0;
- SET_FRAME_GARBAGED (f);
- }
- else
- {
- dumprectangle (x_window_to_frame (event.xexpose.window),
- event.xexpose.x, event.xexpose.y,
- event.xexpose.width, event.xexpose.height);
- }
- }
- else
- {
- struct scroll_bar *bar
- = x_window_to_scroll_bar (event.xexpose.window);
-
- if (bar)
- x_scroll_bar_expose (bar, &event);
- }
-
- UNBLOCK_INPUT;
- }
-
- /* Define a queue to save up SelectionRequest events for later handling. */
-
- struct selection_event_queue
- {
- XEvent event;
- struct selection_event_queue *next;
- };
-
- static struct selection_event_queue *queue;
-
- /* Nonzero means queue up certain events--don't process them yet. */
- static int x_queue_selection_requests;
-
- /* Queue up an X event *EVENT, to be processed later. */
-
- static void
- x_queue_event (event)
- XEvent *event;
- {
- struct selection_event_queue *queue_tmp
- = (struct selection_event_queue *) malloc (sizeof (struct selection_event_queue));
-
- if (queue_tmp != NULL)
- {
- queue_tmp->event = *event;
- queue_tmp->next = queue;
- queue = queue_tmp;
- }
- }
-
- /* Take all the queued events and put them back
- so that they get processed afresh. */
-
- static void
- x_unqueue_events ()
- {
- while (queue != NULL)
- {
- struct selection_event_queue *queue_tmp = queue;
- XPutBackEvent (XDISPLAY &queue_tmp->event);
- queue = queue_tmp->next;
- free ((char *)queue_tmp);
- }
- }
-
- /* Start queuing SelectionRequest events. */
-
- void
- x_start_queuing_selection_requests ()
- {
- x_queue_selection_requests++;
- }
-
- /* Stop queuing SelectionRequest events. */
-
- void
- x_stop_queuing_selection_requests ()
- {
- x_queue_selection_requests--;
- x_unqueue_events ();
- }
-
- /* The main X event-reading loop - XTread_socket. */
-
- /* Timestamp of enter window event. This is only used by XTread_socket,
- but we have to put it out here, since static variables within functions
- sometimes don't work. */
- static Time enter_timestamp;
-
- /* This holds the state XLookupString needs to implement dead keys
- and other tricks known as "compose processing". _X Window System_
- says that a portable program can't use this, but Stephen Gildea assures
- me that letting the compiler initialize it to zeros will work okay.
-
- This must be defined outside of XTread_socket, for the same reasons
- given for enter_timestamp, above. */
- static XComposeStatus compose_status;
-
- /* Communication with window managers. */
- Atom Xatom_wm_protocols;
-
- /* Kinds of protocol things we may receive. */
- Atom Xatom_wm_take_focus;
- Atom Xatom_wm_save_yourself;
- Atom Xatom_wm_delete_window;
-
- /* Other WM communication */
- Atom Xatom_wm_configure_denied; /* When our config request is denied */
- Atom Xatom_wm_window_moved; /* When the WM moves us. */
-
- /* Window manager communication. */
- Atom Xatom_wm_change_state;
-
- /* EditRes protocol */
- Atom Xatom_editres_name;
-
- /* Record the last 100 characters stored
- to help debug the loss-of-chars-during-GC problem. */
- int temp_index;
- short temp_buffer[100];
-
- /* Read events coming from the X server.
- This routine is called by the SIGIO handler.
- We return as soon as there are no more events to be read.
-
- Events representing keys are stored in buffer BUFP,
- which can hold up to NUMCHARS characters.
- We return the number of characters stored into the buffer,
- thus pretending to be `read'.
-
- WAITP is nonzero if we should block until input arrives.
- EXPECTED is nonzero if the caller knows input is available. */
-
- int
- XTread_socket (sd, bufp, numchars, waitp, expected)
- register int sd;
- register struct input_event *bufp;
- register int numchars;
- int waitp;
- int expected;
- {
- int count = 0;
- int nbytes = 0;
- int mask;
- int items_pending; /* How many items are in the X queue. */
- XEvent event;
- struct frame *f;
- int event_found = 0;
- int prefix;
- Lisp_Object part;
-
- if (interrupt_input_blocked)
- {
- interrupt_input_pending = 1;
- return -1;
- }
-
- interrupt_input_pending = 0;
- BLOCK_INPUT;
-
- if (numchars <= 0)
- abort (); /* Don't think this happens. */
-
- #ifdef FIOSNBIO
- /* If available, Xlib uses FIOSNBIO to make the socket
- non-blocking, and then looks for EWOULDBLOCK. If O_NDELAY is set,
- FIOSNBIO is ignored, and instead of signalling EWOULDBLOCK,
- a read returns 0, which Xlib interprets as equivalent to EPIPE. */
- fcntl (fileno (stdin), F_SETFL, 0);
- #endif /* ! defined (FIOSNBIO) */
-
- #ifndef SIGIO
- #ifndef HAVE_SELECT
- if (! (fcntl (fileno (stdin), F_GETFL, 0) & O_NDELAY))
- {
- extern int read_alarm_should_throw;
- read_alarm_should_throw = 1;
- XPeekEvent (XDISPLAY &event);
- read_alarm_should_throw = 0;
- }
- #endif /* HAVE_SELECT */
- #endif /* SIGIO */
-
- while (XStuffPending () != 0)
- {
- XNextEvent (XDISPLAY &event);
- event_found = 1;
-
- switch (event.type)
- {
- #ifdef HAVE_X11
- case ClientMessage:
- {
- if (event.xclient.message_type == Xatom_wm_protocols
- && event.xclient.format == 32)
- {
- if (event.xclient.data.l[0] == Xatom_wm_take_focus)
- {
- f = x_window_to_frame (event.xclient.window);
- /* Since we set WM_TAKE_FOCUS, we must call
- XSetInputFocus explicitly. But not if f is null,
- since that might be an event for a deleted frame. */
- if (f)
- XSetInputFocus (event.xclient.display,
- event.xclient.window,
- RevertToPointerRoot,
- event.xclient.data.l[1]);
- /* Not certain about handling scroll bars here */
- }
- else if (event.xclient.data.l[0] == Xatom_wm_save_yourself)
- {
- /* Save state modify the WM_COMMAND property to
- something which can reinstate us. This notifies
- the session manager, who's looking for such a
- PropertyNotify. Can restart processing when
- a keyboard or mouse event arrives. */
- if (numchars > 0)
- {
- /* This is just so we only give real data once
- for a single Emacs process. */
- if (x_top_window_to_frame (event.xclient.window)
- == selected_frame)
- XSetCommand (x_current_display,
- event.xclient.window,
- initial_argv, initial_argc);
- else
- XSetCommand (x_current_display,
- event.xclient.window,
- 0, 0);
- }
- }
- else if (event.xclient.data.l[0] == Xatom_wm_delete_window)
- {
- struct frame *f = x_any_window_to_frame (event.xclient.window);
-
- if (f)
- {
- if (numchars == 0)
- abort ();
-
- bufp->kind = delete_window_event;
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- bufp++;
-
- count += 1;
- numchars -= 1;
- }
- }
- }
- else if (event.xclient.message_type == Xatom_wm_configure_denied)
- {
- }
- else if (event.xclient.message_type == Xatom_wm_window_moved)
- {
- int new_x, new_y;
- struct frame *f = x_window_to_frame (event.xclient.window);
-
- new_x = event.xclient.data.s[0];
- new_y = event.xclient.data.s[1];
-
- if (f)
- {
- f->display.x->left_pos = new_x;
- f->display.x->top_pos = new_y;
- }
- }
- #if defined (USE_X_TOOLKIT) && defined (HAVE_X11R5)
- else if (event.xclient.message_type == Xatom_editres_name)
- {
- struct frame *f = x_any_window_to_frame (event.xclient.window);
- _XEditResCheckMessages (f->display.x->widget, NULL, &event, NULL);
- }
- #endif /* USE_X_TOOLKIT and HAVE_X11R5 */
- }
- break;
-
- case SelectionNotify:
- #ifdef USE_X_TOOLKIT
- if (! x_window_to_frame (event.xselection.requestor))
- goto OTHER;
- #endif /* not USE_X_TOOLKIT */
- x_handle_selection_notify (&event);
- break;
-
- case SelectionClear: /* Someone has grabbed ownership. */
- #ifdef USE_X_TOOLKIT
- if (! x_window_to_frame (event.xselectionclear.window))
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- {
- XSelectionClearEvent *eventp = (XSelectionClearEvent *) &event;
-
- if (numchars == 0)
- abort ();
-
- bufp->kind = selection_clear_event;
- SELECTION_EVENT_DISPLAY (bufp) = eventp->display;
- SELECTION_EVENT_SELECTION (bufp) = eventp->selection;
- SELECTION_EVENT_TIME (bufp) = eventp->time;
- bufp++;
-
- count += 1;
- numchars -= 1;
- }
- break;
-
- case SelectionRequest: /* Someone wants our selection. */
- #ifdef USE_X_TOOLKIT
- if (!x_window_to_frame (event.xselectionrequest.owner))
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- if (x_queue_selection_requests)
- x_queue_event (&event);
- else
- {
- XSelectionRequestEvent *eventp = (XSelectionRequestEvent *) &event;
-
- if (numchars == 0)
- abort ();
-
- bufp->kind = selection_request_event;
- SELECTION_EVENT_DISPLAY (bufp) = eventp->display;
- SELECTION_EVENT_REQUESTOR (bufp) = eventp->requestor;
- SELECTION_EVENT_SELECTION (bufp) = eventp->selection;
- SELECTION_EVENT_TARGET (bufp) = eventp->target;
- SELECTION_EVENT_PROPERTY (bufp) = eventp->property;
- SELECTION_EVENT_TIME (bufp) = eventp->time;
- bufp++;
-
- count += 1;
- numchars -= 1;
- }
- break;
-
- case PropertyNotify:
- #ifdef USE_X_TOOLKIT
- if (!x_any_window_to_frame (event.xproperty.window))
- goto OTHER;
- #endif /* not USE_X_TOOLKIT */
- x_handle_property_notify (&event);
- break;
-
- case ReparentNotify:
- f = x_top_window_to_frame (event.xreparent.window);
- if (f)
- {
- int x, y;
- f->display.x->parent_desc = event.xreparent.parent;
- x_real_positions (f, &x, &y);
- f->display.x->left_pos = x;
- f->display.x->top_pos = y;
- }
- break;
-
- case Expose:
- f = x_window_to_frame (event.xexpose.window);
- if (f)
- {
- if (f->async_visible == 0)
- {
- f->async_visible = 1;
- f->async_iconified = 0;
- SET_FRAME_GARBAGED (f);
- }
- else
- dumprectangle (x_window_to_frame (event.xexpose.window),
- event.xexpose.x, event.xexpose.y,
- event.xexpose.width, event.xexpose.height);
- }
- else
- {
- struct scroll_bar *bar
- = x_window_to_scroll_bar (event.xexpose.window);
-
- if (bar)
- x_scroll_bar_expose (bar, &event);
- #ifdef USE_X_TOOLKIT
- else
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- }
- break;
-
- case GraphicsExpose: /* This occurs when an XCopyArea's
- source area was obscured or not
- available.*/
- f = x_window_to_frame (event.xgraphicsexpose.drawable);
- if (f)
- {
- dumprectangle (f,
- event.xgraphicsexpose.x, event.xgraphicsexpose.y,
- event.xgraphicsexpose.width,
- event.xgraphicsexpose.height);
- }
- #ifdef USE_X_TOOLKIT
- else
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- case NoExpose: /* This occurs when an XCopyArea's
- source area was completely
- available */
- break;
- #else /* ! defined (HAVE_X11) */
- case ExposeWindow:
- if (event.subwindow != 0)
- break; /* duplicate event */
- f = x_window_to_frame (event.window);
- if (event.window == f->display.x->icon_desc)
- {
- refreshicon (f);
- f->async_iconified = 1;
- }
- if (event.window == FRAME_X_WINDOW (f))
- {
- /* Say must check all windows' needs_exposure flags. */
- expose_all_windows = 1;
- f->display.x->needs_exposure = 1;
- f->async_visible = 1;
- }
- break;
-
- case ExposeRegion:
- if (event.subwindow != 0)
- break; /* duplicate event */
- f = x_window_to_frame (event.window);
- if (event.window == f->display.x->icon_desc)
- {
- refreshicon (f);
- break;
- }
- /* If window already needs full redraw, ignore this rectangle. */
- if (expose_all_windows && f->display.x->needs_exposure)
- break;
- /* Put the event on the queue of rectangles to redraw. */
- if (enqueue_event (&event, &x_expose_queue))
- /* If it is full, we can't record the rectangle,
- so redraw this entire window. */
- {
- /* Say must check all windows' needs_exposure flags. */
- expose_all_windows = 1;
- f->display.x->needs_exposure = 1;
- }
- break;
-
- case ExposeCopy:
- /* This should happen only when we are expecting it,
- in x_read_exposes. */
- abort ();
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef HAVE_X11
- case UnmapNotify:
- f = x_any_window_to_frame (event.xunmap.window);
- if (f) /* F may no longer exist if
- the frame was deleted. */
- {
- /* While a frame is unmapped, display generation is
- disabled; you don't want to spend time updating a
- display that won't ever be seen. */
- f->async_visible = 0;
- /* We can't distinguish, from the event, whether the window
- has become iconified or invisible. So assume, if it
- was previously visible, than now it is iconified.
- We depend on x_make_frame_invisible to mark it iconified. */
- if (FRAME_VISIBLE_P (f) || FRAME_ICONIFIED_P (f))
- f->async_iconified = 1;
- }
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- case MapNotify:
- /* We use x_top_window_to_frame because map events can come
- for subwindows and they don't mean that the frame is visible. */
- f = x_top_window_to_frame (event.xmap.window);
- if (f)
- {
- f->async_visible = 1;
- f->async_iconified = 0;
-
- /* wait_reading_process_input will notice this and update
- the frame's display structures. */
- SET_FRAME_GARBAGED (f);
- }
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- /* Turn off processing if we become fully obscured. */
- case VisibilityNotify:
- break;
-
- #else /* ! defined (HAVE_X11) */
- case UnmapWindow:
- f = x_window_to_frame (event.window);
- if (event.window == f->display.x->icon_desc)
- f->async_iconified = 0;
- if (event.window == FRAME_X_WINDOW (f))
- f->async_visible = 0;
- break;
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef HAVE_X11
- case KeyPress:
- f = x_any_window_to_frame (event.xkey.window);
-
- if (f != 0)
- {
- KeySym keysym, orig_keysym;
- /* al%imercury@uunet.uu.net says that making this 81 instead of
- 80 fixed a bug whereby meta chars made his Emacs hang. */
- unsigned char copy_buffer[81];
- int modifiers;
-
- event.xkey.state
- |= x_emacs_to_x_modifiers (extra_keyboard_modifiers);
- modifiers = event.xkey.state;
-
- /* This will have to go some day... */
-
- /* make_lispy_event turns chars into control chars.
- Don't do it here because XLookupString is too eager. */
- event.xkey.state &= ~ControlMask;
- nbytes =
- XLookupString (&event.xkey, copy_buffer, 80, &keysym,
- &compose_status);
-
- orig_keysym = keysym;
-
- if (numchars > 1)
- {
- if (((keysym >= XK_BackSpace && keysym <= XK_Escape)
- || keysym == XK_Delete
- || IsCursorKey (keysym) /* 0xff50 <= x < 0xff60 */
- || IsMiscFunctionKey (keysym) /* 0xff60 <= x < VARIES */
- #ifdef HPUX
- /* This recognizes the "extended function keys".
- It seems there's no cleaner way.
- Test IsModifierKey to avoid handling mode_switch
- incorrectly. */
- || ((unsigned) (keysym) >= XK_Select
- && (unsigned)(keysym) < XK_KP_Space)
- #endif
- #ifdef XK_dead_circumflex
- || orig_keysym == XK_dead_circumflex
- #endif
- #ifdef XK_dead_grave
- || orig_keysym == XK_dead_grave
- #endif
- #ifdef XK_dead_tilde
- || orig_keysym == XK_dead_tilde
- #endif
- #ifdef XK_dead_diaeresis
- || orig_keysym == XK_dead_diaeresis
- #endif
- #ifdef XK_dead_macron
- || orig_keysym == XK_dead_macron
- #endif
- #ifdef XK_dead_degree
- || orig_keysym == XK_dead_degree
- #endif
- #ifdef XK_dead_acute
- || orig_keysym == XK_dead_acute
- #endif
- #ifdef XK_dead_cedilla
- || orig_keysym == XK_dead_cedilla
- #endif
- #ifdef XK_dead_breve
- || orig_keysym == XK_dead_breve
- #endif
- #ifdef XK_dead_ogonek
- || orig_keysym == XK_dead_ogonek
- #endif
- #ifdef XK_dead_caron
- || orig_keysym == XK_dead_caron
- #endif
- #ifdef XK_dead_doubleacute
- || orig_keysym == XK_dead_doubleacute
- #endif
- #ifdef XK_dead_abovedot
- || orig_keysym == XK_dead_abovedot
- #endif
- || IsKeypadKey (keysym) /* 0xff80 <= x < 0xffbe */
- || IsFunctionKey (keysym) /* 0xffbe <= x < 0xffe1 */
- /* Any "vendor-specific" key is ok. */
- || (orig_keysym & (1 << 28)))
- && ! (IsModifierKey (orig_keysym)
- #ifndef HAVE_X11R5
- #ifdef XK_Mode_switch
- || ((unsigned)(orig_keysym) == XK_Mode_switch)
- #endif
- #ifdef XK_Num_Lock
- || ((unsigned)(orig_keysym) == XK_Num_Lock)
- #endif
- #endif /* not HAVE_X11R5 */
- ))
- {
- if (temp_index == sizeof temp_buffer / sizeof (short))
- temp_index = 0;
- temp_buffer[temp_index++] = keysym;
- bufp->kind = non_ascii_keystroke;
- bufp->code = keysym;
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- bufp->modifiers = x_x_to_emacs_modifiers (modifiers);
- bufp->timestamp = event.xkey.time;
- bufp++;
- count++;
- numchars--;
- }
- else if (numchars > nbytes)
- {
- register int i;
-
- for (i = 0; i < nbytes; i++)
- {
- if (temp_index == sizeof temp_buffer / sizeof (short))
- temp_index = 0;
- temp_buffer[temp_index++] = copy_buffer[i];
- bufp->kind = ascii_keystroke;
- bufp->code = copy_buffer[i];
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- bufp->modifiers = x_x_to_emacs_modifiers (modifiers);
- bufp->timestamp = event.xkey.time;
- bufp++;
- }
-
- count += nbytes;
- numchars -= nbytes;
- }
- else
- abort ();
- }
- else
- abort ();
- }
- break;
- #else /* ! defined (HAVE_X11) */
- case KeyPressed:
- {
- register char *where_mapping;
-
- f = x_window_to_frame (event.window);
- /* Ignore keys typed on icon windows. */
- if (f != 0 && event.window == f->display.x->icon_desc)
- break;
- where_mapping = XLookupMapping (&event, &nbytes);
- /* Nasty fix for arrow keys */
- if (!nbytes && IsCursorKey (event.detail & 0xff))
- {
- switch (event.detail & 0xff)
- {
- case KC_CURSOR_LEFT:
- where_mapping = "\002";
- break;
- case KC_CURSOR_RIGHT:
- where_mapping = "\006";
- break;
- case KC_CURSOR_UP:
- where_mapping = "\020";
- break;
- case KC_CURSOR_DOWN:
- where_mapping = "\016";
- break;
- }
- nbytes = 1;
- }
- if (numchars - nbytes > 0)
- {
- register int i;
-
- for (i = 0; i < nbytes; i++)
- {
- bufp->kind = ascii_keystroke;
- bufp->code = where_mapping[i];
- XSET (bufp->time, Lisp_Int, event.xkey.time);
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- bufp++;
- }
- count += nbytes;
- numchars -= nbytes;
- }
- }
- break;
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef HAVE_X11
-
- /* Here's a possible interpretation of the whole
- FocusIn-EnterNotify FocusOut-LeaveNotify mess. If you get a
- FocusIn event, you have to get a FocusOut event before you
- relinquish the focus. If you haven't received a FocusIn event,
- then a mere LeaveNotify is enough to free you. */
-
- case EnterNotify:
- f = x_any_window_to_frame (event.xcrossing.window);
-
- if (event.xcrossing.focus) /* Entered Window */
- {
- /* Avoid nasty pop/raise loops. */
- if (f && (!(f->auto_raise)
- || !(f->auto_lower)
- || (event.xcrossing.time - enter_timestamp) > 500))
- {
- x_new_focus_frame (f);
- enter_timestamp = event.xcrossing.time;
- }
- }
- else if (f == x_focus_frame)
- x_new_focus_frame (0);
- /* EnterNotify counts as mouse movement,
- so update things that depend on mouse position. */
- if (f)
- note_mouse_movement (f, &event.xmotion);
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- case FocusIn:
- f = x_any_window_to_frame (event.xfocus.window);
- if (event.xfocus.detail != NotifyPointer)
- x_focus_event_frame = f;
- if (f)
- x_new_focus_frame (f);
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
-
- case LeaveNotify:
- f = x_top_window_to_frame (event.xcrossing.window);
- if (f)
- {
- if (f == mouse_face_mouse_frame)
- /* If we move outside the frame,
- then we're certainly no longer on any text in the frame. */
- clear_mouse_face ();
-
- if (event.xcrossing.focus)
- {
- if (! x_focus_event_frame)
- x_new_focus_frame (0);
- else
- x_new_focus_frame (f);
- }
- else
- {
- if (f == x_focus_event_frame)
- x_focus_event_frame = 0;
- if (f == x_focus_frame)
- x_new_focus_frame (0);
- }
- }
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- case FocusOut:
- f = x_any_window_to_frame (event.xfocus.window);
- if (event.xfocus.detail != NotifyPointer
- && f == x_focus_event_frame)
- x_focus_event_frame = 0;
- if (f && f == x_focus_frame)
- x_new_focus_frame (0);
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- #else /* ! defined (HAVE_X11) */
-
- case EnterWindow:
- if ((event.detail & 0xFF) == 1)
- break; /* Coming from our own subwindow */
- if (event.subwindow != 0)
- break; /* Entering our own subwindow. */
-
- {
- f = x_window_to_frame (event.window);
- x_mouse_frame = f;
-
- x_new_focus_frame (f);
- }
- break;
-
- case LeaveWindow:
- if ((event.detail & 0xFF) == 1)
- break; /* Entering our own subwindow */
- if (event.subwindow != 0)
- break; /* Leaving our own subwindow. */
-
- x_mouse_frame = 0;
- if (x_focus_frame == 0
- && x_input_frame != 0
- && x_input_frame == x_window_to_frame (event.window)
- && event.window == FRAME_X_WINDOW (x_input_frame))
- {
- f = x_input_frame;
- x_input_frame = 0;
- if (f)
- frame_unhighlight (f);
- }
- break;
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef HAVE_X11
- case MotionNotify:
- {
- if (x_mouse_grabbed && last_mouse_frame
- && FRAME_LIVE_P (last_mouse_frame))
- f = last_mouse_frame;
- else
- f = x_window_to_frame (event.xmotion.window);
- if (f)
- note_mouse_movement (f, &event.xmotion);
- else
- {
- struct scroll_bar *bar
- = x_window_to_scroll_bar (event.xmotion.window);
-
- if (bar)
- x_scroll_bar_note_movement (bar, &event);
-
- /* If we move outside the frame,
- then we're certainly no longer on any text in the frame. */
- clear_mouse_face ();
- }
- }
- #if 0 /* This should be unnecessary, since the toolkit has no use
- for motion events that happen outside of the menu event loop,
- and it seems to cause the bug that mouse events stop coming
- after a while. */
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- #endif
- break;
-
- case ConfigureNotify:
- f = x_any_window_to_frame (event.xconfigure.window);
- #ifdef USE_X_TOOLKIT
- if (f
- #if 0
- && ! event.xconfigure.send_event
- #endif
- && (event.xconfigure.window == XtWindow (f->display.x->widget)))
- {
- Window win, child;
- int win_x, win_y;
-
- /* Find the position of the outside upper-left corner of
- the window, in the root coordinate system. Don't
- refer to the parent window here; we may be processing
- this event after the window manager has changed our
- parent, but before we have reached the ReparentNotify. */
- XTranslateCoordinates (x_current_display,
-
- /* From-window, to-window. */
- XtWindow (f->display.x->widget),
- ROOT_WINDOW,
-
- /* From-position, to-position. */
- -event.xconfigure.border_width,
- -event.xconfigure.border_width,
- &win_x, &win_y,
-
- /* Child of win. */
- &child);
- event.xconfigure.x = win_x;
- event.xconfigure.y = win_y;
-
- f->display.x->pixel_width = event.xconfigure.width;
- f->display.x->pixel_height = event.xconfigure.height;
- f->display.x->left_pos = event.xconfigure.x;
- f->display.x->top_pos = event.xconfigure.y;
-
- /* What we have now is the position of Emacs's own window.
- Convert that to the position of the window manager window. */
- {
- int x, y;
- x_real_positions (f, &x, &y);
- f->display.x->left_pos = x;
- f->display.x->top_pos = y;
- }
- }
- goto OTHER;
- #else /* not USE_X_TOOLKIT */
- if (f)
- {
- int rows = PIXEL_TO_CHAR_HEIGHT (f, event.xconfigure.height);
- int columns = PIXEL_TO_CHAR_WIDTH (f, event.xconfigure.width);
-
- /* Even if the number of character rows and columns has
- not changed, the font size may have changed, so we need
- to check the pixel dimensions as well. */
- if (columns != f->width
- || rows != f->height
- || event.xconfigure.width != f->display.x->pixel_width
- || event.xconfigure.height != f->display.x->pixel_height)
- {
- change_frame_size (f, rows, columns, 0, 1);
- SET_FRAME_GARBAGED (f);
- }
-
- if (! event.xconfigure.send_event)
- {
- Window win, child;
- int win_x, win_y;
-
- /* Find the position of the outside upper-left corner of
- the window, in the root coordinate system. Don't
- refer to the parent window here; we may be processing
- this event after the window manager has changed our
- parent, but before we have reached the ReparentNotify. */
- XTranslateCoordinates (x_current_display,
-
- /* From-window, to-window. */
- f->display.x->window_desc,
- ROOT_WINDOW,
-
- /* From-position, to-position. */
- -event.xconfigure.border_width,
- -event.xconfigure.border_width,
- &win_x, &win_y,
-
- /* Child of win. */
- &child);
- event.xconfigure.x = win_x;
- event.xconfigure.y = win_y;
- }
-
- f->display.x->pixel_width = event.xconfigure.width;
- f->display.x->pixel_height = event.xconfigure.height;
- f->display.x->left_pos = event.xconfigure.x;
- f->display.x->top_pos = event.xconfigure.y;
-
- /* What we have now is the position of Emacs's own window.
- Convert that to the position of the window manager window. */
- {
- int x, y;
- x_real_positions (f, &x, &y);
- f->display.x->left_pos = x;
- f->display.x->top_pos = y;
- if (y != event.xconfigure.y)
- {
- /* Since the WM decorations come below top_pos now,
- we must put them below top_pos in the future. */
- f->display.x->win_gravity = NorthWestGravity;
- x_wm_set_size_hint (f, 0, 0);
- }
- }
- }
- #endif /* not USE_X_TOOLKIT */
- break;
-
- case ButtonPress:
- case ButtonRelease:
- {
- /* If we decide we want to generate an event to be seen
- by the rest of Emacs, we put it here. */
- struct input_event emacs_event;
- emacs_event.kind = no_event;
-
- bzero (&compose_status, sizeof (compose_status));
-
- f = x_window_to_frame (event.xbutton.window);
- if (f)
- {
- if (!x_focus_frame || (f == x_focus_frame))
- construct_mouse_click (&emacs_event, &event, f);
- }
- else
- {
- struct scroll_bar *bar
- = x_window_to_scroll_bar (event.xbutton.window);
-
- if (bar)
- x_scroll_bar_handle_click (bar, &event, &emacs_event);
- #ifdef USE_X_TOOLKIT
- else
- {
- f = x_any_window_to_frame (event.xbutton.window);
- if (f && event.type == ButtonPress)
- construct_menu_click (&emacs_event,
- &event, f);
- }
- #endif /* USE_X_TOOLKIT */
- }
-
- if (event.type == ButtonPress)
- {
- x_mouse_grabbed |= (1 << event.xbutton.button);
- Vmouse_depressed = Qt;
- last_mouse_frame = f;
- }
- else
- {
- x_mouse_grabbed &= ~(1 << event.xbutton.button);
- if (!x_mouse_grabbed)
- Vmouse_depressed = Qnil;
- }
-
- if (numchars >= 1 && emacs_event.kind != no_event)
- {
- bcopy (&emacs_event, bufp, sizeof (struct input_event));
- bufp++;
- count++;
- numchars--;
- }
-
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- }
- break;
-
- #else /* ! defined (HAVE_X11) */
- case ButtonPressed:
- case ButtonReleased:
- f = x_window_to_frame (event.window);
- if (f)
- {
- if (event.window == f->display.x->icon_desc)
- {
- x_make_frame_visible (f);
-
- if (warp_mouse_on_deiconify)
- XWarpMouse (FRAME_X_WINDOW (f), 10, 10);
- break;
- }
- if (event.window == FRAME_X_WINDOW (f))
- {
- if (f->auto_raise)
- x_raise_frame (f);
- }
- }
- enqueue_event (&event, &x_mouse_queue);
- if (numchars >= 2)
- {
- bufp->kind = ascii_keystroke;
- bufp->code = 'X' & 037; /* C-x */
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- XSET (bufp->time, Lisp_Int, event.xkey.time);
- bufp++;
-
- bufp->kind = ascii_keystroke;
- bufp->code = 0; /* C-@ */
- XSET (bufp->frame_or_window, Lisp_Frame, f);
- XSET (bufp->time, Lisp_Int, event.xkey.time);
- bufp++;
-
- count += 2;
- numchars -= 2;
- }
- break;
- #endif /* ! defined (HAVE_X11) */
-
- #ifdef HAVE_X11
-
- case CirculateNotify:
- break;
- case CirculateRequest:
- break;
-
- #endif /* ! defined (HAVE_X11) */
-
- case MappingNotify:
- /* Someone has changed the keyboard mapping - update the
- local cache. */
- switch (event.xmapping.request)
- {
- case MappingModifier:
- x_find_modifier_meanings ();
- /* This is meant to fall through. */
- case MappingKeyboard:
- XRefreshKeyboardMapping (&event.xmapping);
- }
- #ifdef USE_X_TOOLKIT
- goto OTHER;
- #endif /* USE_X_TOOLKIT */
- break;
-
- default:
- #ifdef USE_X_TOOLKIT
- OTHER:
- BLOCK_INPUT;
- XtDispatchEvent (&event);
- UNBLOCK_INPUT;
- #endif /* USE_X_TOOLKIT */
- break;
- }
- }
-
- /* On some systems, an X bug causes Emacs to get no more events
- when the window is destroyed. Detect that. (1994.) */
- if (! event_found)
- {
- /* Emacs and the X Server eats up CPU time if XNoOp is done every time.
- One XNOOP in 100 loops will make Emacs terminate.
- B. Bretthauer, 1994 */
- x_noop_count++;
- if (x_noop_count >= 100)
- {
- x_noop_count=0;
- XNoOp (x_current_display);
- }
- }
-
- #if 0 /* This fails for serial-line connections to the X server,
- because the characters arrive one by one, and a partial
- command makes select return but gives nothing to read.
- We'll have to hope that the bug that this tried to fix
- in 1988 has been fixed in Xlib or the X server. */
- #ifdef HAVE_SELECT
- if (expected && ! event_found)
- {
- /* AOJ 880406: if select returns true but XPending doesn't, it means that
- there is an EOF condition; in other words, that X has died.
- Act as if there had been a hangup. */
- int fd = ConnectionNumber (x_current_display);
- SELECT_TYPE mask, junk1, junk2;
- EMACS_TIME timeout;
-
- FD_ZERO (&mask);
- FD_SET (fd, &mask);
- EMACS_SET_SECS_USECS (timeout, 0, 0);
- FD_ZERO (&junk1);
- FD_ZERO (&junk2);
- if (0 != select (fd + 1, &mask, &junk1, &junk2, &timeout)
- && !XStuffPending ())
- kill (getpid (), SIGHUP);
- }
- #endif /* HAVE_SELECT */
- #endif /* 0 */
-
- #ifndef HAVE_X11
- if (updating_frame == 0)
- x_do_pending_expose ();
- #endif
-
- /* If the focus was just given to an autoraising frame,
- raise it now. */
- #ifdef HAVE_X11
- if (pending_autoraise_frame)
- {
- x_raise_frame (pending_autoraise_frame);
- pending_autoraise_frame = 0;
- }
- #endif
-
- UNBLOCK_INPUT;
- return count;
- }
-
- #ifndef HAVE_X11
- /* Read and process only Expose events
- until we get an ExposeCopy event; then return.
- This is used in insert/delete line.
- We assume input is already blocked. */
-
- static void
- x_read_exposes ()
- {
- struct frame *f;
- XKeyPressedEvent event;
-
- while (1)
- {
- /* while there are more events*/
- XMaskEvent (ExposeWindow | ExposeRegion | ExposeCopy, &event);
- switch (event.type)
- {
- case ExposeWindow:
- if (event.subwindow != 0)
- break; /* duplicate event */
- f = x_window_to_frame (event.window);
- if (event.window == f->display.x->icon_desc)
- {
- refreshicon (f);
- break;
- }
- if (event.window == FRAME_X_WINDOW (f))
- {
- expose_all_windows = 1;
- f->display.x->needs_exposure = 1;
- break;
- }
- break;
-
- case ExposeRegion:
- if (event.subwindow != 0)
- break; /* duplicate event */
- f = x_window_to_frame (event.window);
- if (event.window == f->display.x->icon_desc)
- {
- refreshicon (f);
- break;
- }
- /* If window already needs full redraw, ignore this rectangle. */
- if (expose_all_windows && f->display.x->needs_exposure)
- break;
- /* Put the event on the queue of rectangles to redraw. */
- if (enqueue_event (&event, &x_expose_queue))
- /* If it is full, we can't record the rectangle,
- so redraw this entire window. */
- {
- /* Say must check all windows' needs_exposure flags. */
- expose_all_windows = 1;
- f->display.x->needs_exposure = 1;
- }
- break;
-
- case ExposeCopy:
- return;
- }
- }
- }
- #endif /* HAVE_X11 */
-
-
- /* Drawing the cursor. */
-
-
- /* Draw a hollow box cursor. Don't change the inside of the box. */
-
- static void
- x_draw_box (f)
- struct frame *f;
- {
- int left = CHAR_TO_PIXEL_COL (f, curs_x);
- int top = CHAR_TO_PIXEL_ROW (f, curs_y);
- int width = FONT_WIDTH (f->display.x->font);
- int height = f->display.x->line_height;
-
- #ifdef HAVE_X11
- XDrawRectangle (x_current_display, FRAME_X_WINDOW (f),
- f->display.x->cursor_gc,
- left, top, width - 1, height - 1);
- #else /* ! defined (HAVE_X11) */
- XPixSet (FRAME_X_WINDOW (f),
- left, top, width, 1,
- f->display.x->cursor_pixel);
-
- XPixSet (FRAME_X_WINDOW (f),
- left, top, 1, height,
- f->display.x->cursor_pixel);
-
- XPixSet (FRAME_X_WINDOW (f),
- left+width-1, top, 1, height,
- f->display.x->cursor_pixel);
-
- XPixSet (FRAME_X_WINDOW (f),
- left, top+height-1, width, 1,
- f->display.x->cursor_pixel);
- #endif /* ! defined (HAVE_X11) */
- }
-
- /* Clear the cursor of frame F to background color,
- and mark the cursor as not shown.
- This is used when the text where the cursor is
- is about to be rewritten. */
-
- static void
- clear_cursor (f)
- struct frame *f;
- {
- int mask;
-
- if (! FRAME_VISIBLE_P (f)
- || f->phys_cursor_x < 0)
- return;
-
- #ifdef HAVE_X11
- x_display_cursor (f, 0);
- #else /* ! defined (HAVE_X11) */
- XPixSet (FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, f->phys_cursor_x),
- CHAR_TO_PIXEL_ROW (f, f->phys_cursor_y),
- FONT_WIDTH (f->display.x->font), f->display.x->line_height,
- f->display.x->background_pixel);
- #endif /* ! defined (HAVE_X11) */
- f->phys_cursor_x = -1;
- }
-
- /* Redraw the glyph at ROW, COLUMN on frame F, in the style
- HIGHLIGHT. HIGHLIGHT is as defined for dumpglyphs. Return the
- glyph drawn. */
-
- static void
- x_draw_single_glyph (f, row, column, glyph, highlight)
- struct frame *f;
- int row, column;
- GLYPH glyph;
- int highlight;
- {
- dumpglyphs (f,
- CHAR_TO_PIXEL_COL (f, column),
- CHAR_TO_PIXEL_ROW (f, row),
- &glyph, 1, highlight, 0);
- }
-
- static void
- x_display_bar_cursor (f, on)
- struct frame *f;
- int on;
- {
- struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f);
-
- /* This is pointless on invisible frames, and dangerous on garbaged
- frames; in the latter case, the frame may be in the midst of
- changing its size, and curs_x and curs_y may be off the frame. */
- if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f))
- return;
-
- if (! on && f->phys_cursor_x < 0)
- return;
-
- /* If we're not updating, then we want to use the current frame's
- cursor position, not our local idea of where the cursor ought to be. */
- if (f != updating_frame)
- {
- curs_x = FRAME_CURSOR_X (f);
- curs_y = FRAME_CURSOR_Y (f);
- }
-
- /* If there is anything wrong with the current cursor state, remove it. */
- if (f->phys_cursor_x >= 0
- && (!on
- || f->phys_cursor_x != curs_x
- || f->phys_cursor_y != curs_y
- || f->display.x->current_cursor != bar_cursor))
- {
- /* Erase the cursor by redrawing the character underneath it. */
- x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x,
- f->phys_cursor_glyph,
- current_glyphs->highlight[f->phys_cursor_y]);
- f->phys_cursor_x = -1;
- }
-
- /* If we now need a cursor in the new place or in the new form, do it so. */
- if (on
- && (f->phys_cursor_x < 0
- || (f->display.x->current_cursor != bar_cursor)))
- {
- f->phys_cursor_glyph
- = ((current_glyphs->enable[curs_y]
- && curs_x < current_glyphs->used[curs_y])
- ? current_glyphs->glyphs[curs_y][curs_x]
- : SPACEGLYPH);
- XFillRectangle (x_current_display, FRAME_X_WINDOW (f),
- f->display.x->cursor_gc,
- CHAR_TO_PIXEL_COL (f, curs_x),
- CHAR_TO_PIXEL_ROW (f, curs_y),
- 1, f->display.x->line_height);
-
- f->phys_cursor_x = curs_x;
- f->phys_cursor_y = curs_y;
-
- f->display.x->current_cursor = bar_cursor;
- }
-
- if (updating_frame != f)
- XFlushQueue ();
- }
-
-
- /* Turn the displayed cursor of frame F on or off according to ON.
- If ON is nonzero, where to put the cursor is specified
- by F->cursor_x and F->cursor_y. */
-
- static void
- x_display_box_cursor (f, on)
- struct frame *f;
- int on;
- {
- struct frame_glyphs *current_glyphs = FRAME_CURRENT_GLYPHS (f);
-
- /* This is pointless on invisible frames, and dangerous on garbaged
- frames; in the latter case, the frame may be in the midst of
- changing its size, and curs_x and curs_y may be off the frame. */
- if (! FRAME_VISIBLE_P (f) || FRAME_GARBAGED_P (f))
- return;
-
- /* If cursor is off and we want it off, return quickly. */
- if (!on && f->phys_cursor_x < 0)
- return;
-
- /* If we're not updating, then we want to use the current frame's
- cursor position, not our local idea of where the cursor ought to be. */
- if (f != updating_frame)
- {
- curs_x = FRAME_CURSOR_X (f);
- curs_y = FRAME_CURSOR_Y (f);
- }
-
- /* If cursor is currently being shown and we don't want it to be
- or it is in the wrong place,
- or we want a hollow box and it's not so, (pout!)
- erase it. */
- if (f->phys_cursor_x >= 0
- && (!on
- || f->phys_cursor_x != curs_x
- || f->phys_cursor_y != curs_y
- || (f->display.x->current_cursor != hollow_box_cursor
- && (f != x_highlight_frame))))
- {
- int mouse_face_here = 0;
-
- /* If the cursor is in the mouse face area, redisplay that when
- we clear the cursor. */
- if (f == mouse_face_mouse_frame
- &&
- (f->phys_cursor_y > mouse_face_beg_row
- || (f->phys_cursor_y == mouse_face_beg_row
- && f->phys_cursor_x >= mouse_face_beg_col))
- &&
- (f->phys_cursor_y < mouse_face_end_row
- || (f->phys_cursor_y == mouse_face_end_row
- && f->phys_cursor_x < mouse_face_end_col)))
- mouse_face_here = 1;
-
- /* If the font is not as tall as a whole line,
- we must explicitly clear the line's whole height. */
- if (FONT_HEIGHT (f->display.x->font) != f->display.x->line_height)
- XClearArea (x_current_display, FRAME_X_WINDOW (f),
- CHAR_TO_PIXEL_COL (f, f->phys_cursor_x),
- CHAR_TO_PIXEL_ROW (f, f->phys_cursor_y),
- FONT_WIDTH (f->display.x->font),
- f->display.x->line_height, False);
- /* Erase the cursor by redrawing the character underneath it. */
- x_draw_single_glyph (f, f->phys_cursor_y, f->phys_cursor_x,
- f->phys_cursor_glyph,
- (mouse_face_here
- ? 3
- : current_glyphs->highlight[f->phys_cursor_y]));
- f->phys_cursor_x = -1;
- }
-
- /* If we want to show a cursor,
- or we want a box cursor and it's not so,
- write it in the right place. */
- if (on
- && (f->phys_cursor_x < 0
- || (f->display.x->current_cursor != filled_box_cursor
- && f == x_highlight_frame)))
- {
- f->phys_cursor_glyph
- = ((current_glyphs->enable[curs_y]
- && curs_x < current_glyphs->used[curs_y])
- ? current_glyphs->glyphs[curs_y][curs_x]
- : SPACEGLYPH);
- if (f != x_highlight_frame)
- {
- x_draw_box (f);
- f->display.x->current_cursor = hollow_box_cursor;
- }
- else
- {
- x_draw_single_glyph (f, curs_y, curs_x,
- f->phys_cursor_glyph, 2);
- f->display.x->current_cursor = filled_box_cursor;
- }
-
- f->phys_cursor_x = curs_x;
- f->phys_cursor_y = curs_y;
- }
-
- if (updating_frame != f)
- XFlushQueue ();
- }
-
- x_display_cursor (f, on)
- struct frame *f;
- int on;
- {
- BLOCK_INPUT;
-
- if (FRAME_DESIRED_CURSOR (f) == filled_box_cursor)
- x_display_box_cursor (f, on);
- else if (FRAME_DESIRED_CURSOR (f) == bar_cursor)
- x_display_bar_cursor (f, on);
- else
- /* Those are the only two we have implemented! */
- abort ();
-
- UNBLOCK_INPUT;
- }
-
- /* Icons. */
-
- /* Refresh bitmap kitchen sink icon for frame F
- when we get an expose event for it. */
-
- refreshicon (f)
- struct frame *f;
- {
- #ifdef HAVE_X11
- /* Normally, the window manager handles this function. */
- #else /* ! defined (HAVE_X11) */
- int mask;
-
- if (f->display.x->icon_bitmap_flag)
- XBitmapBitsPut (f->display.x->icon_desc, 0, 0, sink_width, sink_height,
- sink_bits, BlackPixel, WHITE_PIX_DEFAULT,
- icon_bitmap, GXcopy, AllPlanes);
- else
- {
- extern struct frame *selected_frame;
- struct Lisp_String *str;
- unsigned char *string;
-
- string
- = XSTRING (XBUFFER (XWINDOW (f->selected_window)->buffer)->name)->data;
-
- if (f->display.x->icon_label != string)
- {
- f->display.x->icon_label = string;
- XChangeWindow (f->display.x->icon_desc,
- XQueryWidth (string, icon_font_info->id) + 10,
- icon_font_info->height + 10);
- }
-
- XText (f->display.x->icon_desc, 5, 5, string,
- str->size, icon_font_info->id,
- BLACK_PIX_DEFAULT, WHITE_PIX_DEFAULT);
- }
- XFlushQueue ();
- #endif /* ! defined (HAVE_X11) */
- }
-
- /* Make the x-window of frame F use the gnu icon bitmap. */
-
- int
- x_bitmap_icon (f)
- struct frame *f;
- {
- int mask;
- Window icon_window;
-
- if (FRAME_X_WINDOW (f) == 0)
- return 1;
-
- #ifdef HAVE_X11
- if (! icon_bitmap)
- icon_bitmap =
- XCreateBitmapFromData (x_current_display, FRAME_X_WINDOW (f),
- gnu_bits, gnu_width, gnu_height);
- x_wm_set_icon_pixmap (f, icon_bitmap);
- f->display.x->icon_bitmap_flag = 1;
- #else /* ! defined (HAVE_X11) */
- if (f->display.x->icon_desc)
- {
- XClearIconWindow (FRAME_X_WINDOW (f));
- XDestroyWindow (f->display.x->icon_desc);
- }
-
- icon_window = XCreateWindow (f->display.x->parent_desc,
- 0, 0, sink_width, sink_height,
- 2, WhitePixmap, (Pixmap) NULL);
-
- if (icon_window == 0)
- return 1;
-
- XSetIconWindow (FRAME_X_WINDOW (f), icon_window);
- XSelectInput (icon_window, ExposeWindow | UnmapWindow);
-
- f->display.x->icon_desc = icon_window;
- f->display.x->icon_bitmap_flag = 1;
-
- if (icon_bitmap == 0)
- icon_bitmap
- = XStoreBitmap (sink_mask_width, sink_mask_height, sink_mask_bits);
- #endif /* ! defined (HAVE_X11) */
-
- return 0;
- }
-
-
- /* Make the x-window of frame F use a rectangle with text. */
-
- int
- x_text_icon (f, icon_name)
- struct frame *f;
- char *icon_name;
- {
- #ifndef HAVE_X11
- int mask;
- int width;
- Window icon_window;
- char *X_DefaultValue;
- Bitmap b1;
-
- #ifndef WhitePixel
- #define WhitePixel 1
- #endif /* WhitePixel */
-
- #ifndef BlackPixel
- #define BlackPixel 0
- #endif /* BlackPixel */
- #endif /* HAVE_X11 */
-
- if (FRAME_X_WINDOW (f) == 0)
- return 1;
-
- #ifdef HAVE_X11
- if (icon_name)
- f->display.x->icon_label = icon_name;
- else
- if (! f->display.x->icon_label)
- f->display.x->icon_label = " *emacs* ";
-
- #if 0
- XSetIconName (x_current_display, FRAME_X_WINDOW (f),
- (char *) f->display.x->icon_label);
- #endif
-
- f->display.x->icon_bitmap_flag = 0;
- x_wm_set_icon_pixmap (f, 0);
- #else /* ! defined (HAVE_X11) */
- if (icon_font_info == 0)
- icon_font_info
- = XGetFont (XGetDefault (XDISPLAY
- (char *) XSTRING (Vinvocation_name)->data,
- "BodyFont"));
-
- if (f->display.x->icon_desc)
- {
- XClearIconWindow (XDISPLAY FRAME_X_WINDOW (f));
- XDestroyWindow (XDISPLAY f->display.x->icon_desc);
- }
-
- if (icon_name)
- f->display.x->icon_label = (unsigned char *) icon_name;
- else
- if (! f->display.x->icon_label)
- f->display.x->icon_label = XSTRING (f->name)->data;
-
- width = XStringWidth (f->display.x->icon_label, icon_font_info, 0, 0);
- icon_window = XCreateWindow (f->display.x->parent_desc,
- f->display.x->left_pos,
- f->display.x->top_pos,
- width + 10, icon_font_info->height + 10,
- 2, BlackPixmap, WhitePixmap);
-
- if (icon_window == 0)
- return 1;
-
- XSetIconWindow (FRAME_X_WINDOW (f), icon_window);
- XSelectInput (icon_window, ExposeWindow | ExposeRegion | UnmapWindow | ButtonPressed);
-
- f->display.x->icon_desc = icon_window;
- f->display.x->icon_bitmap_flag = 0;
- f->display.x->icon_label = 0;
- #endif /* ! defined (HAVE_X11) */
-
- return 0;
- }
-
- /* Handling X errors. */
-
- /* Shut down Emacs in an orderly fashion, because of a SIGPIPE on the
- X server's connection, or an error reported via the X protocol. */
-
- static SIGTYPE
- x_connection_closed ()
- {
- if (_Xdebug)
- abort ();
-
- shut_down_emacs (0, 1, Qnil);
-
- exit (70);
- }
-
- /* An X error handler which prints an error message and then kills
- Emacs. This is what's normally installed as Xlib's handler for
- protocol errors. */
- static int
- x_error_quitter (display, error)
- Display *display;
- XErrorEvent *error;
- {
- char buf[256];
-
- /* Note that there is no real way portable across R3/R4 to get the
- original error handler. */
-
- XGetErrorText (display, error->error_code, buf, sizeof (buf));
- fprintf (stderr, "X protocol error: %s on protocol request %d\n",
- buf, error->request_code);
-
- #if 0
- /* While we're testing Emacs 19, we'll just dump core whenever we
- get an X error, so we can figure out why it happened. */
- abort ();
- #endif
-
- x_connection_closed ();
- }
-
- /* A handler for X IO errors which prints an error message and then
- kills Emacs. This is what is always installed as Xlib's handler
- for I/O errors. */
- static int
- x_io_error_quitter (display)
- Display *display;
- {
- fprintf (stderr, "Connection to X server %s lost.\n",
- XDisplayName (DisplayString (display)));
-
- #if 0
- /* While we're testing Emacs 19, we'll just dump core whenever we
- get an X error, so we can figure out why it happened. */
- abort ();
- #endif
-
- x_connection_closed ();
- }
-
- /* A buffer for storing X error messages. */
- static char *x_caught_error_message;
- #define X_CAUGHT_ERROR_MESSAGE_SIZE 200
-
- /* An X error handler which stores the error message in
- x_caught_error_message. This is what's installed when
- x_catch_errors is in effect. */
- static int
- x_error_catcher (display, error)
- Display *display;
- XErrorEvent *error;
- {
- XGetErrorText (display, error->error_code,
- x_caught_error_message, X_CAUGHT_ERROR_MESSAGE_SIZE);
- }
-
-
- /* Begin trapping X errors.
-
- After calling this function, X protocol errors no longer cause
- Emacs to exit; instead, they are recorded in x_cfc_error_message.
-
- Calling x_check_errors signals an Emacs error if an X error has
- occurred since the last call to x_catch_errors or x_check_errors.
-
- Calling x_uncatch_errors resumes the normal error handling. */
-
- void x_catch_errors (), x_check_errors (), x_uncatch_errors ();
-
- void
- x_catch_errors ()
- {
- /* Make sure any errors from previous requests have been dealt with. */
- XSync (x_current_display, False);
-
- /* Set up the error buffer. */
- x_caught_error_message
- = (char*) xmalloc (X_CAUGHT_ERROR_MESSAGE_SIZE);
- x_caught_error_message[0] = '\0';
-
- /* Install our little error handler. */
- XHandleError (x_error_catcher);
- }
-
- /* If any X protocol errors have arrived since the last call to
- x_catch_errors or x_check_errors, signal an Emacs error using
- sprintf (a buffer, FORMAT, the x error message text) as the text. */
-
- void
- x_check_errors (format)
- char *format;
- {
- /* Make sure to catch any errors incurred so far. */
- XSync (x_current_display, False);
-
- if (x_caught_error_message[0])
- {
- char buf[X_CAUGHT_ERROR_MESSAGE_SIZE + 56];
-
- sprintf (buf, format, x_caught_error_message);
- x_uncatch_errors ();
- error (buf);
- }
- }
-
- /* Nonzero if we had any X protocol errors since we did x_catch_errors. */
-
- int
- x_had_errors_p ()
- {
- /* Make sure to catch any errors incurred so far. */
- XSync (x_current_display, False);
-
- return x_caught_error_message[0] != 0;
- }
-
- /* Stop catching X protocol errors and let them make Emacs die. */
-
- void
- x_uncatch_errors ()
- {
- xfree (x_caught_error_message);
- x_caught_error_message = 0;
- XHandleError (x_error_quitter);
- }
-
- #if 0
- static unsigned int x_wire_count;
- x_trace_wire ()
- {
- fprintf (stderr, "Lib call: %d\n", ++x_wire_count);
- }
- #endif /* ! 0 */
-
-
- /* Changing the font of the frame. */
-
- /* Set the font of the x-window specified by frame F
- to the font named NEWNAME. This is safe to use
- even before F has an actual x-window. */
-
- #ifdef HAVE_X11
-
- struct font_info
- {
- XFontStruct *font;
- char *name;
- char *full_name;
- };
-
- /* A table of all the fonts we have already loaded. */
- static struct font_info *x_font_table;
-
- /* The current capacity of x_font_table. */
- static int x_font_table_size;
-
- /* The number of fonts actually stored in x_font_table.
- x_font_table[n] is used and valid iff 0 <= n < n_fonts.
- 0 <= n_fonts <= x_font_table_size. */
- static int n_fonts;
-
- /* Give frame F the font named FONTNAME as its default font, and
- return the full name of that font. FONTNAME may be a wildcard
- pattern; in that case, we choose some font that fits the pattern.
- The return value shows which font we chose. */
-
- Lisp_Object
- x_new_font (f, fontname)
- struct frame *f;
- register char *fontname;
- {
- int already_loaded;
- int n_matching_fonts;
- XFontStruct *font_info;
- char **font_names;
-
- /* Get a list of all the fonts that match this name. Once we
- have a list of matching fonts, we compare them against the fonts
- we already have by comparing font ids. */
- font_names = (char **) XListFonts (x_current_display, fontname,
- 1024, &n_matching_fonts);
- /* Apparently it doesn't set n_matching_fonts to zero when it can't
- find any matches; font_names == 0 is the only clue. */
- if (! font_names)
- n_matching_fonts = 0;
-
- /* Don't just give up if n_matching_fonts is 0.
- Apparently there's a bug on Suns: XListFontsWithInfo can
- fail to find a font, but XLoadQueryFont may still find it. */
-
- /* See if we've already loaded a matching font. */
- already_loaded = -1;
- if (n_matching_fonts != 0)
- {
- int i, j;
-
- for (i = 0; i < n_fonts; i++)
- for (j = 0; j < n_matching_fonts; j++)
- if (!strcmp (x_font_table[i].name, font_names[j])
- || !strcmp (x_font_table[i].full_name, font_names[j]))
- {
- already_loaded = i;
- fontname = x_font_table[i].full_name;
- goto found_font;
- }
- }
- found_font:
-
- /* If we have, just return it from the table. */
- if (already_loaded >= 0)
- f->display.x->font = x_font_table[already_loaded].font;
-
- /* Otherwise, load the font and add it to the table. */
- else
- {
- int i;
- char *full_name;
- XFontStruct *font;
-
- /* Try to find a character-cell font in the list. */
- #if 0
- /* A laudable goal, but this isn't how to do it. */
- for (i = 0; i < n_matching_fonts; i++)
- if (! font_info[i].per_char)
- break;
- #else
- i = 0;
- #endif
-
- /* See comment above. */
- if (n_matching_fonts != 0)
- fontname = font_names[i];
-
- font = (XFontStruct *) XLoadQueryFont (x_current_display, fontname);
- if (! font)
- {
- /* Free the information from XListFonts. */
- if (n_matching_fonts)
- XFreeFontNames (font_names);
- return Qnil;
- }
-
- /* Do we need to create the table? */
- if (x_font_table_size == 0)
- {
- x_font_table_size = 16;
- x_font_table
- = (struct font_info *) xmalloc (x_font_table_size
- * sizeof (x_font_table[0]));
- }
- /* Do we need to grow the table? */
- else if (n_fonts >= x_font_table_size)
- {
- x_font_table_size *= 2;
- x_font_table
- = (struct font_info *) xrealloc (x_font_table,
- (x_font_table_size
- * sizeof (x_font_table[0])));
- }
-
- /* Try to get the full name of FONT. Put it in full_name. */
- full_name = 0;
- for (i = 0; i < font->n_properties; i++)
- {
- char *atom
- = XGetAtomName (x_current_display, font->properties[i].name);
- if (!strcmp (atom, "FONT"))
- {
- char *name = XGetAtomName (x_current_display,
- (Atom) (font->properties[i].card32));
- char *p = name;
- int dashes = 0;
-
- /* Count the number of dashes in the "full name".
- If it is too few, this isn't really the font's full name,
- so don't use it.
- In X11R4, the fonts did not come with their canonical names
- stored in them. */
- while (*p)
- {
- if (*p == '-')
- dashes++;
- p++;
- }
-
- if (dashes >= 13)
- full_name = name;
- }
-
- XFree (atom);
- }
-
- x_font_table[n_fonts].name = (char *) xmalloc (strlen (fontname) + 1);
- bcopy (fontname, x_font_table[n_fonts].name, strlen (fontname) + 1);
- if (full_name != 0)
- x_font_table[n_fonts].full_name = full_name;
- else
- x_font_table[n_fonts].full_name = x_font_table[n_fonts].name;
- f->display.x->font = x_font_table[n_fonts++].font = font;
-
- if (full_name)
- fontname = full_name;
- }
-
- /* Now make the frame display the given font. */
- if (FRAME_X_WINDOW (f) != 0)
- {
- XSetFont (x_current_display, f->display.x->normal_gc,
- f->display.x->font->fid);
- XSetFont (x_current_display, f->display.x->reverse_gc,
- f->display.x->font->fid);
- XSetFont (x_current_display, f->display.x->cursor_gc,
- f->display.x->font->fid);
-
- frame_update_line_height (f);
- x_set_window_size (f, 0, f->width, f->height);
- }
- else
- /* If we are setting a new frame's font for the first time,
- there are no faces yet, so this font's height is the line height. */
- f->display.x->line_height = FONT_HEIGHT (f->display.x->font);
-
- {
- Lisp_Object lispy_name;
-
- lispy_name = build_string (fontname);
-
- /* Free the information from XListFonts. The data
- we actually retain comes from XLoadQueryFont. */
- XFreeFontNames (font_names);
-
- return lispy_name;
- }
- }
- #else /* ! defined (HAVE_X11) */
- x_new_font (f, newname)
- struct frame *f;
- register char *newname;
- {
- FONT_TYPE *temp;
- int mask;
-
- temp = XGetFont (newname);
- if (temp == (FONT_TYPE *) 0)
- return 1;
-
- if (f->display.x->font)
- XLoseFont (f->display.x->font);
-
- f->display.x->font = temp;
-
- if (FRAME_X_WINDOW (f) != 0)
- x_set_window_size (f, 0, f->width, f->height);
-
- return 0;
- }
- #endif /* ! defined (HAVE_X11) */
-
- x_calc_absolute_position (f)
- struct frame *f;
- {
- #ifdef HAVE_X11
- Window win, child;
- int win_x = 0, win_y = 0;
- int flags = f->display.x->size_hint_flags;
-
- /* Find the position of the outside upper-left corner of
- the inner window, with respect to the outer window. */
- if (f->display.x->parent_desc != ROOT_WINDOW)
- {
- BLOCK_INPUT;
- XTranslateCoordinates (x_current_display,
-
- /* From-window, to-window. */
- f->display.x->window_desc,
- f->display.x->parent_desc,
-
- /* From-position, to-position. */
- 0, 0, &win_x, &win_y,
-
- /* Child of win. */
- &child);
- UNBLOCK_INPUT;
- }
-
- /* Treat negative positions as relative to the leftmost bottommost
- position that fits on the screen. */
- if (flags & XNegative)
- f->display.x->left_pos = (x_screen_width
- - 2 * f->display.x->border_width - win_x
- - PIXEL_WIDTH (f)
- + f->display.x->left_pos);
-
- if (flags & YNegative)
- f->display.x->top_pos = (x_screen_height
- - 2 * f->display.x->border_width - win_y
- - PIXEL_HEIGHT (f)
- + f->display.x->top_pos);
- /* The left_pos and top_pos
- are now relative to the top and left screen edges,
- so the flags should correspond. */
- f->display.x->size_hint_flags &= ~ (XNegative | YNegative);
- #else /* ! defined (HAVE_X11) */
- WINDOWINFO_TYPE parentinfo;
-
- XGetWindowInfo (FRAME_X_WINDOW (f), &parentinfo);
-
- if (f->display.x->left_pos < 0)
- f->display.x->left_pos = parentinfo.width + (f->display.x->left_pos + 1)
- - PIXEL_WIDTH (f) - 2 * f->display.x->internal_border_width;
-
- if (f->display.x->top_pos < 0)
- f->display.x->top_pos = parentinfo.height + (f->display.x->top_pos + 1)
- - PIXEL_HEIGHT (f) - 2 * f->display.x->internal_border_width;
- #endif /* ! defined (HAVE_X11) */
- }
-
- /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
- to really change the position, and 0 when calling from
- x_make_frame_visible (in that case, XOFF and YOFF are the current
- position values). */
-
- x_set_offset (f, xoff, yoff, change_gravity)
- struct frame *f;
- register int xoff, yoff;
- int change_gravity;
- {
- if (change_gravity)
- {
- f->display.x->top_pos = yoff;
- f->display.x->left_pos = xoff;
- f->display.x->size_hint_flags &= ~ (XNegative | YNegative);
- if (xoff < 0)
- f->display.x->size_hint_flags |= XNegative;
- if (yoff < 0)
- f->display.x->size_hint_flags |= YNegative;
- f->display.x->win_gravity = NorthWestGravity;
- }
- x_calc_absolute_position (f);
-
- BLOCK_INPUT;
- x_wm_set_size_hint (f, 0, 0);
-
- #ifdef USE_X_TOOLKIT
- XMoveWindow (XDISPLAY XtWindow (f->display.x->widget),
- f->display.x->left_pos, f->display.x->top_pos);
- #else /* not USE_X_TOOLKIT */
- XMoveWindow (XDISPLAY FRAME_X_WINDOW (f),
- f->display.x->left_pos, f->display.x->top_pos);
- #endif /* not USE_X_TOOLKIT */
- UNBLOCK_INPUT;
- }
-
- /* Call this to change the size of frame F's x-window.
- If CHANGE_GRAVITY is 1, we change to top-left-corner window gravity
- for this size change and subsequent size changes.
- Otherwise we leave the window gravity unchanged. */
-
- x_set_window_size (f, change_gravity, cols, rows)
- struct frame *f;
- int change_gravity;
- int cols, rows;
- {
- int pixelwidth, pixelheight;
- int mask;
-
- #ifdef USE_X_TOOLKIT
- BLOCK_INPUT;
- {
- /* The x and y position of the widget is clobbered by the
- call to XtSetValues within EmacsFrameSetCharSize.
- This is a real kludge, but I don't understand Xt so I can't
- figure out a correct fix. Can anyone else tell me? -- rms. */
- int xpos = f->display.x->widget->core.x;
- int ypos = f->display.x->widget->core.y;
- EmacsFrameSetCharSize (f->display.x->edit_widget, cols, rows);
- f->display.x->widget->core.x = xpos;
- f->display.x->widget->core.y = ypos;
- }
- UNBLOCK_INPUT;
-
- #else /* not USE_X_TOOLKIT */
-
- BLOCK_INPUT;
-
- check_frame_size (f, &rows, &cols);
- f->display.x->vertical_scroll_bar_extra
- = (FRAME_HAS_VERTICAL_SCROLL_BARS (f)
- ? VERTICAL_SCROLL_BAR_PIXEL_WIDTH (f)
- : 0);
- pixelwidth = CHAR_TO_PIXEL_WIDTH (f, cols);
- pixelheight = CHAR_TO_PIXEL_HEIGHT (f, rows);
-
- #ifdef HAVE_X11
- f->display.x->win_gravity = NorthWestGravity;
- x_wm_set_size_hint (f, 0, 0);
- #endif /* ! defined (HAVE_X11) */
- XSync (x_current_display, False);
- XChangeWindowSize (FRAME_X_WINDOW (f), pixelwidth, pixelheight);
-
- /* Now, strictly speaking, we can't be sure that this is accurate,
- but the window manager will get around to dealing with the size
- change request eventually, and we'll hear how it went when the
- ConfigureNotify event gets here.
-
- We could just not bother storing any of this information here,
- and let the ConfigureNotify event set everything up, but that
- might be kind of confusing to the lisp code, since size changes
- wouldn't be reported in the frame parameters until some random
- point in the future when the ConfigureNotify event arrives. */
- change_frame_size (f, rows, cols, 0, 0);
- PIXEL_WIDTH (f) = pixelwidth;
- PIXEL_HEIGHT (f) = pixelheight;
-
- /* If cursor was outside the new size, mark it as off. */
- if (f->phys_cursor_y >= rows
- || f->phys_cursor_x >= cols)
- {
- f->phys_cursor_x = -1;
- f->phys_cursor_y = -1;
- }
-
- /* We've set {FRAME,PIXEL}_{WIDTH,HEIGHT} to the values we hope to
- receive in the ConfigureNotify event; if we get what we asked
- for, then the event won't cause the screen to become garbaged, so
- we have to make sure to do it here. */
- SET_FRAME_GARBAGED (f);
-
- XFlushQueue ();
- UNBLOCK_INPUT;
- #endif /* not USE_X_TOOLKIT */
- }
-
- #ifndef HAVE_X11
- x_set_resize_hint (f)
- struct frame *f;
- {
- XSetResizeHint (FRAME_X_WINDOW (f),
- 2 * f->display.x->internal_border_width,
- 2 * f->display.x->internal_border_width,
- FONT_WIDTH (f->display.x->font),
- f->display.x->line_height);
- }
- #endif /* HAVE_X11 */
-
- /* Mouse warping, focus shifting, raising and lowering. */
-
- void
- x_set_mouse_position (f, x, y)
- struct frame *f;
- int x, y;
- {
- int pix_x, pix_y;
-
- pix_x = CHAR_TO_PIXEL_COL (f, x) + FONT_WIDTH (f->display.x->font) / 2;
- pix_y = CHAR_TO_PIXEL_ROW (f, y) + f->display.x->line_height / 2;
-
- if (pix_x < 0) pix_x = 0;
- if (pix_x > PIXEL_WIDTH (f)) pix_x = PIXEL_WIDTH (f);
-
- if (pix_y < 0) pix_y = 0;
- if (pix_y > PIXEL_HEIGHT (f)) pix_y = PIXEL_HEIGHT (f);
-
- BLOCK_INPUT;
-
- XWarpMousePointer (FRAME_X_WINDOW (f), pix_x, pix_y);
- UNBLOCK_INPUT;
- }
-
- /* Move the mouse to position pixel PIX_X, PIX_Y relative to frame F. */
-
- void
- x_set_mouse_pixel_position (f, pix_x, pix_y)
- struct frame *f;
- int pix_x, pix_y;
- {
- BLOCK_INPUT;
-
- XWarpMousePointer (FRAME_X_WINDOW (f), pix_x, pix_y);
- UNBLOCK_INPUT;
- }
-
- #ifdef HAVE_X11
- x_focus_on_frame (f)
- struct frame *f;
- {
- #if 0 /* This proves to be unpleasant. */
- x_raise_frame (f);
- #endif
- #if 0
- /* I don't think that the ICCCM allows programs to do things like this
- without the interaction of the window manager. Whatever you end up
- doing with this code, do it to x_unfocus_frame too. */
- XSetInputFocus (x_current_display, FRAME_X_WINDOW (f),
- RevertToPointerRoot, CurrentTime);
- #endif /* ! 0 */
- }
-
- x_unfocus_frame (f)
- struct frame *f;
- {
- #if 0
- /* Look at the remarks in x_focus_on_frame. */
- if (x_focus_frame == f)
- XSetInputFocus (x_current_display, PointerRoot,
- RevertToPointerRoot, CurrentTime);
- #endif /* ! 0 */
- }
-
- #endif /* ! defined (HAVE_X11) */
-
- /* Raise frame F. */
-
- x_raise_frame (f)
- struct frame *f;
- {
- if (f->async_visible)
- {
- BLOCK_INPUT;
- #ifdef USE_X_TOOLKIT
- XRaiseWindow (XDISPLAY XtWindow (f->display.x->widget));
- #else /* not USE_X_TOOLKIT */
- XRaiseWindow (XDISPLAY FRAME_X_WINDOW (f));
- #endif /* not USE_X_TOOLKIT */
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
- }
-
- /* Lower frame F. */
-
- x_lower_frame (f)
- struct frame *f;
- {
- if (f->async_visible)
- {
- BLOCK_INPUT;
- #ifdef USE_X_TOOLKIT
- XLowerWindow (XDISPLAY XtWindow (f->display.x->widget));
- #else /* not USE_X_TOOLKIT */
- XLowerWindow (XDISPLAY FRAME_X_WINDOW (f));
- #endif /* not USE_X_TOOLKIT */
- XFlushQueue ();
- UNBLOCK_INPUT;
- }
- }
-
- static void
- XTframe_raise_lower (f, raise)
- FRAME_PTR f;
- int raise;
- {
- if (raise)
- x_raise_frame (f);
- else
- x_lower_frame (f);
- }
-
-
- /* Change from withdrawn state to mapped state,
- or deiconify. */
-
- x_make_frame_visible (f)
- struct frame *f;
- {
- int mask;
-
- BLOCK_INPUT;
-
- if (! FRAME_VISIBLE_P (f))
- {
- #ifdef HAVE_X11
- #ifndef USE_X_TOOLKIT
- if (! FRAME_ICONIFIED_P (f))
- x_set_offset (f, f->display.x->left_pos, f->display.x->top_pos, 0);
- #endif
-
- if (! EQ (Vx_no_window_manager, Qt))
- x_wm_set_window_state (f, NormalState);
- #ifdef USE_X_TOOLKIT
- /* This was XtPopup, but that did nothing for an iconified frame. */
- XtMapWidget (f->display.x->widget);
- #else /* not USE_X_TOOLKIT */
- XMapWindow (XDISPLAY FRAME_X_WINDOW (f));
- #endif /* not USE_X_TOOLKIT */
- #if 0 /* This seems to bring back scroll bars in the wrong places
- if the window configuration has changed. They seem
- to come back ok without this. */
- if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
- XMapSubwindows (x_current_display, FRAME_X_WINDOW (f));
- #endif
- #else /* ! defined (HAVE_X11) */
- XMapWindow (XDISPLAY FRAME_X_WINDOW (f));
- if (f->display.x->icon_desc != 0)
- XUnmapWindow (f->display.x->icon_desc);
-
- /* Handled by the MapNotify event for X11 */
- f->async_visible = 1;
- f->async_iconified = 0;
-
- /* NOTE: this may cause problems for the first frame. */
- XTcursor_to (0, 0);
- #endif /* ! defined (HAVE_X11) */
- }
-
- XFlushQueue ();
-
- UNBLOCK_INPUT;
-
- /* Synchronize to ensure Emacs knows the frame is visible
- before we do anything else. We do this loop with input not blocked
- so that incoming events are handled. */
- {
- Lisp_Object frame;
- XSET (frame, Lisp_Frame, f);
- while (! f->async_visible)
- {
- x_sync (frame);
- /* Machines that do polling rather than SIGIO have been observed
- to go into a busy-wait here. So we'll fake an alarm signal
- to let the handler know that there's something to be read.
- We used to raise a real alarm, but it seems that the handler
- isn't always enabled here. This is probably a bug. */
- if (input_polling_used ())
- {
- /* It could be confusing if a real alarm arrives while processing
- the fake one. Turn it off and let the handler reset it. */
- alarm (0);
- input_poll_signal ();
- }
- }
- FRAME_SAMPLE_VISIBILITY (f);
- }
- }
-
- /* Change from mapped state to withdrawn state. */
-
- x_make_frame_invisible (f)
- struct frame *f;
- {
- int mask;
- Window window;
-
- #ifdef USE_X_TOOLKIT
- /* Use the frame's outermost window, not the one we normally draw on. */
- window = XtWindow (f->display.x->widget);
- #else /* not USE_X_TOOLKIT */
- window = FRAME_X_WINDOW (f);
- #endif /* not USE_X_TOOLKIT */
-
- /* Don't keep the highlight on an invisible frame. */
- if (x_highlight_frame == f)
- x_highlight_frame = 0;
-
- #if 0/* This might add unreliability; I don't trust it -- rms. */
- if (! f->async_visible && ! f->async_iconified)
- return;
- #endif
-
- BLOCK_INPUT;
-
- /* Before unmapping the window, update the WM_SIZE_HINTS property to claim
- that the current position of the window is user-specified, rather than
- program-specified, so that when the window is mapped again, it will be
- placed at the same location, without forcing the user to position it
- by hand again (they have already done that once for this window.) */
- x_wm_set_size_hint (f, 0, 1);
-
- #ifdef HAVE_X11R4
-
- if (! XWithdrawWindow (x_current_display, window,
- DefaultScreen (x_current_display)))
- {
- UNBLOCK_INPUT_RESIGNAL;
- error ("Can't notify window manager of window withdrawal");
- }
- #else /* ! defined (HAVE_X11R4) */
- #ifdef HAVE_X11
-
- /* Tell the window manager what we're going to do. */
- if (! EQ (Vx_no_window_manager, Qt))
- {
- XEvent unmap;
-
- unmap.xunmap.type = UnmapNotify;
- unmap.xunmap.window = window;
- unmap.xunmap.event = DefaultRootWindow (x_current_display);
- unmap.xunmap.from_configure = False;
- if (! XSendEvent (x_current_display,
- DefaultRootWindow (x_current_display),
- False,
- SubstructureRedirectMask|SubstructureNotifyMask,
- &unmap))
- {
- UNBLOCK_INPUT_RESIGNAL;
- error ("Can't notify window manager of withdrawal");
- }
- }
-
- /* Unmap the window ourselves. Cheeky! */
- XUnmapWindow (x_current_display, window);
- #else /* ! defined (HAVE_X11) */
-
- XUnmapWindow (FRAME_X_WINDOW (f));
- if (f->display.x->icon_desc != 0)
- XUnmapWindow (f->display.x->icon_desc);
-
- #endif /* ! defined (HAVE_X11) */
- #endif /* ! defined (HAVE_X11R4) */
-
- /* We can't distinguish this from iconification
- just by the event that we get from the server.
- So we can't win using the usual strategy of letting
- FRAME_SAMPLE_VISIBILITY set this. So do it by hand,
- and synchronize with the server to make sure we agree. */
- f->visible = 0;
- FRAME_ICONIFIED_P (f) = 0;
- f->async_visible = 0;
- f->async_iconified = 0;
-
- x_sync ();
-
- UNBLOCK_INPUT;
- }
-
- /* Change window state from mapped to iconified. */
-
- x_iconify_frame (f)
- struct frame *f;
- {
- int mask;
- int result;
-
- /* Don't keep the highlight on an invisible frame. */
- if (x_highlight_frame == f)
- x_highlight_frame = 0;
-
- if (f->async_iconified)
- return;
-
- #ifdef USE_X_TOOLKIT
- BLOCK_INPUT;
-
- if (! FRAME_VISIBLE_P (f))
- {
- if (! EQ (Vx_no_window_manager, Qt))
- x_wm_set_window_state (f, IconicState);
- /* This was XtPopup, but that did nothing for an iconified frame. */
- XtMapWidget (f->display.x->widget);
- UNBLOCK_INPUT;
- return;
- }
-
- result = XIconifyWindow (x_current_display,
- XtWindow (f->display.x->widget),
- DefaultScreen (x_current_display));
- UNBLOCK_INPUT;
-
- if (!result)
- error ("Can't notify window manager of iconification");
-
- f->async_iconified = 1;
-
- BLOCK_INPUT;
- XFlushQueue ();
- UNBLOCK_INPUT;
- #else /* not USE_X_TOOLKIT */
-
- BLOCK_INPUT;
-
- #ifdef HAVE_X11
- /* Make sure the X server knows where the window should be positioned,
- in case the user deiconifies with the window manager. */
- if (! FRAME_VISIBLE_P (f) && !FRAME_ICONIFIED_P (f))
- x_set_offset (f, f->display.x->left_pos, f->display.x->top_pos, 0);
-
- /* Since we don't know which revision of X we're running, we'll use both
- the X11R3 and X11R4 techniques. I don't know if this is a good idea. */
-
- /* X11R4: send a ClientMessage to the window manager using the
- WM_CHANGE_STATE type. */
- {
- XEvent message;
-
- message.xclient.window = FRAME_X_WINDOW (f);
- message.xclient.type = ClientMessage;
- message.xclient.message_type = Xatom_wm_change_state;
- message.xclient.format = 32;
- message.xclient.data.l[0] = IconicState;
-
- if (! XSendEvent (x_current_display,
- DefaultRootWindow (x_current_display),
- False,
- SubstructureRedirectMask | SubstructureNotifyMask,
- &message))
- {
- UNBLOCK_INPUT_RESIGNAL;
- error ("Can't notify window manager of iconification");
- }
- }
-
- /* X11R3: set the initial_state field of the window manager hints to
- IconicState. */
- x_wm_set_window_state (f, IconicState);
-
- if (!FRAME_VISIBLE_P (f))
- {
- /* If the frame was withdrawn, before, we must map it. */
- XMapWindow (XDISPLAY FRAME_X_WINDOW (f));
- #if 0 /* We don't have subwindows in the icon. */
- if (FRAME_HAS_VERTICAL_SCROLL_BARS (f))
- XMapSubwindows (x_current_display, FRAME_X_WINDOW (f));
- #endif
- }
-
- f->async_iconified = 1;
- #else /* ! defined (HAVE_X11) */
- XUnmapWindow (XDISPLAY FRAME_X_WINDOW (f));
-
- f->async_visible = 0; /* Handled in the UnMap event for X11. */
- if (f->display.x->icon_desc != 0)
- {
- XMapWindow (XDISPLAY f->display.x->icon_desc);
- refreshicon (f);
- }
- #endif /* ! defined (HAVE_X11) */
-
- XFlushQueue ();
- UNBLOCK_INPUT;
- #endif /* not USE_X_TOOLKIT */
- }
-
- /* Destroy the X window of frame F. */
-
- x_destroy_window (f)
- struct frame *f;
- {
- BLOCK_INPUT;
-
- if (f->display.x->icon_desc != 0)
- XDestroyWindow (XDISPLAY f->display.x->icon_desc);
- XDestroyWindow (XDISPLAY f->display.x->window_desc);
- #ifdef USE_X_TOOLKIT
- XtDestroyWidget (f->display.x->widget);
- free_frame_menubar (f);
- #endif /* USE_X_TOOLKIT */
-
- free_frame_faces (f);
- XFlushQueue ();
-
- xfree (f->display.x);
- f->display.x = 0;
- if (f == x_focus_frame)
- x_focus_frame = 0;
- if (f == x_highlight_frame)
- x_highlight_frame = 0;
-
- if (f == mouse_face_mouse_frame)
- {
- mouse_face_beg_row = mouse_face_beg_col = -1;
- mouse_face_end_row = mouse_face_end_col = -1;
- mouse_face_window = Qnil;
- }
-
- UNBLOCK_INPUT;
- }
-
- /* Manage event queues for X10. */
-
- #ifndef HAVE_X11
-
- /* Manage event queues.
-
- This code is only used by the X10 support.
-
- We cannot leave events in the X queue and get them when we are ready
- because X does not provide a subroutine to get only a certain kind
- of event but not block if there are no queued events of that kind.
-
- Therefore, we must examine events as they come in and copy events
- of certain kinds into our private queues.
-
- All ExposeRegion events are put in x_expose_queue.
- All ButtonPress and ButtonRelease events are put in x_mouse_queue. */
-
-
- /* Write the event *P_XREP into the event queue *QUEUE.
- If the queue is full, do nothing, but return nonzero. */
-
- int
- enqueue_event (p_xrep, queue)
- register XEvent *p_xrep;
- register struct event_queue *queue;
- {
- int newindex = queue->windex + 1;
- if (newindex == EVENT_BUFFER_SIZE)
- newindex = 0;
- if (newindex == queue->rindex)
- return -1;
- queue->xrep[queue->windex] = *p_xrep;
- queue->windex = newindex;
- return 0;
- }
-
- /* Fetch the next event from queue *QUEUE and store it in *P_XREP.
- If *QUEUE is empty, do nothing and return 0. */
-
- int
- dequeue_event (p_xrep, queue)
- register XEvent *p_xrep;
- register struct event_queue *queue;
- {
- if (queue->windex == queue->rindex)
- return 0;
- *p_xrep = queue->xrep[queue->rindex++];
- if (queue->rindex == EVENT_BUFFER_SIZE)
- queue->rindex = 0;
- return 1;
- }
-
- /* Return the number of events buffered in *QUEUE. */
-
- int
- queue_event_count (queue)
- register struct event_queue *queue;
- {
- int tem = queue->windex - queue->rindex;
- if (tem >= 0)
- return tem;
- return EVENT_BUFFER_SIZE + tem;
- }
-
- /* Return nonzero if mouse input is pending. */
-
- int
- mouse_event_pending_p ()
- {
- return queue_event_count (&x_mouse_queue);
- }
- #endif /* HAVE_X11 */
-
- /* Setting window manager hints. */
-
- #ifdef HAVE_X11
-
- /* Set the normal size hints for the window manager, for frame F.
- FLAGS is the flags word to use--or 0 meaning preserve the flags
- that the window now has.
- If USER_POSITION is nonzero, we set the USPosition
- flag (this is useful when FLAGS is 0). */
-
- x_wm_set_size_hint (f, flags, user_position)
- struct frame *f;
- long flags;
- int user_position;
- {
- XSizeHints size_hints;
-
- #ifdef USE_X_TOOLKIT
- Arg al[2];
- int ac = 0;
- Dimension widget_width, widget_height;
- Window window = XtWindow (f->display.x->widget);
- #else /* not USE_X_TOOLKIT */
- Window window = FRAME_X_WINDOW (f);
- #endif /* not USE_X_TOOLKIT */
-
- /* Setting PMaxSize caused various problems. */
- size_hints.flags = PResizeInc | PMinSize /* | PMaxSize */;
-
- flexlines = f->height;
-
- size_hints.x = f->display.x->left_pos;
- size_hints.y = f->display.x->top_pos;
-
- #ifdef USE_X_TOOLKIT
- XtSetArg (al[ac], XtNwidth, &widget_width); ac++;
- XtSetArg (al[ac], XtNheight, &widget_height); ac++;
- XtGetValues (f->display.x->column_widget, al, ac);
- size_hints.height = widget_height;
- size_hints.width = widget_width;
- #else /* not USE_X_TOOLKIT */
- size_hints.height = PIXEL_HEIGHT (f);
- size_hints.width = PIXEL_WIDTH (f);
- #endif /* not USE_X_TOOLKIT */
-
- size_hints.width_inc = FONT_WIDTH (f->display.x->font);
- size_hints.height_inc = f->display.x->line_height;
- size_hints.max_width = x_screen_width - CHAR_TO_PIXEL_WIDTH (f, 0);
- size_hints.max_height = x_screen_height - CHAR_TO_PIXEL_HEIGHT (f, 0);
-
- {
- int base_width, base_height;
- int min_rows = 0, min_cols = 0;
-
- base_width = CHAR_TO_PIXEL_WIDTH (f, 0);
- base_height = CHAR_TO_PIXEL_HEIGHT (f, 0);
-
- check_frame_size (f, &min_rows, &min_cols);
-
- /* The window manager uses the base width hints to calculate the
- current number of rows and columns in the frame while
- resizing; min_width and min_height aren't useful for this
- purpose, since they might not give the dimensions for a
- zero-row, zero-column frame.
-
- We use the base_width and base_height members if we have
- them; otherwise, we set the min_width and min_height members
- to the size for a zero x zero frame. */
-
- #ifdef HAVE_X11R4
- size_hints.flags |= PBaseSize;
- size_hints.base_width = base_width;
- size_hints.base_height = base_height;
- size_hints.min_width = base_width + min_cols * size_hints.width_inc;
- size_hints.min_height = base_height + min_rows * size_hints.height_inc;
- #else
- size_hints.min_width = base_width;
- size_hints.min_height = base_height;
- #endif
- }
-
- if (flags)
- size_hints.flags |= flags;
- else
- {
- XSizeHints hints; /* Sometimes I hate X Windows... */
- long supplied_return;
- int value;
-
- #ifdef HAVE_X11R4
- value = XGetWMNormalHints (x_current_display, window, &hints,
- &supplied_return);
- #else
- value = XGetNormalHints (x_current_display, window, &hints);
- #endif
-
- if (value == 0)
- hints.flags = 0;
- if (hints.flags & PSize)
- size_hints.flags |= PSize;
- if (hints.flags & PPosition)
- size_hints.flags |= PPosition;
- if (hints.flags & USPosition)
- size_hints.flags |= USPosition;
- if (hints.flags & USSize)
- size_hints.flags |= USSize;
- }
-
- #ifdef PWinGravity
- size_hints.win_gravity = f->display.x->win_gravity;
- size_hints.flags |= PWinGravity;
-
- if (user_position)
- {
- size_hints.flags &= ~ PPosition;
- size_hints.flags |= USPosition;
- }
- #endif /* PWinGravity */
-
- #ifdef HAVE_X11R4
- XSetWMNormalHints (x_current_display, window, &size_hints);
- #else
- XSetNormalHints (x_current_display, window, &size_hints);
- #endif
- }
-
- /* Used for IconicState or NormalState */
- x_wm_set_window_state (f, state)
- struct frame *f;
- int state;
- {
- #ifdef USE_X_TOOLKIT
- Arg al[1];
-
- XtSetArg (al[0], XtNinitialState, state);
- XtSetValues (f->display.x->widget, al, 1);
- #else /* not USE_X_TOOLKIT */
- Window window = FRAME_X_WINDOW (f);
-
- f->display.x->wm_hints.flags |= StateHint;
- f->display.x->wm_hints.initial_state = state;
-
- XSetWMHints (x_current_display, window, &f->display.x->wm_hints);
- #endif /* not USE_X_TOOLKIT */
- }
-
- x_wm_set_icon_pixmap (f, icon_pixmap)
- struct frame *f;
- Pixmap icon_pixmap;
- {
- #ifdef USE_X_TOOLKIT
- Window window = XtWindow (f->display.x->widget);
- #else
- Window window = FRAME_X_WINDOW (f);
- #endif
-
- if (icon_pixmap)
- {
- f->display.x->wm_hints.icon_pixmap = icon_pixmap;
- f->display.x->wm_hints.flags |= IconPixmapHint;
- }
- else
- f->display.x->wm_hints.flags &= ~IconPixmapHint;
-
- XSetWMHints (x_current_display, window, &f->display.x->wm_hints);
- }
-
- x_wm_set_icon_position (f, icon_x, icon_y)
- struct frame *f;
- int icon_x, icon_y;
- {
- #ifdef USE_X_TOOLKIT
- Window window = XtWindow (f->display.x->widget);
- #else
- Window window = FRAME_X_WINDOW (f);
- #endif
-
- f->display.x->wm_hints.flags |= IconPositionHint;
- f->display.x->wm_hints.icon_x = icon_x;
- f->display.x->wm_hints.icon_y = icon_y;
-
- XSetWMHints (x_current_display, window, &f->display.x->wm_hints);
- }
-
-
- /* Initialization. */
-
- #ifdef USE_X_TOOLKIT
- static XrmOptionDescRec emacs_options[] = {
- {"-geometry", ".geometry", XrmoptionSepArg, NULL},
- {"-iconic", ".iconic", XrmoptionNoArg, (XtPointer) "yes"},
-
- {"-internal-border-width", "*EmacsScreen.internalBorderWidth",
- XrmoptionSepArg, NULL},
- {"-ib", "*EmacsScreen.internalBorderWidth", XrmoptionSepArg, NULL},
-
- {"-T", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
- {"-wn", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
- {"-title", "*EmacsShell.title", XrmoptionSepArg, (XtPointer) NULL},
- {"-iconname", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL},
- {"-in", "*EmacsShell.iconName", XrmoptionSepArg, (XtPointer) NULL},
- {"-mc", "*pointerColor", XrmoptionSepArg, (XtPointer) NULL},
- {"-cr", "*cursorColor", XrmoptionSepArg, (XtPointer) NULL}
- };
- #endif /* USE_X_TOOLKIT */
-
- void
- x_term_init (display_name, xrm_option, resource_name)
- char *display_name;
- char *xrm_option;
- char *resource_name;
- {
- Lisp_Object frame;
- char *defaultvalue;
- int argc = 0;
- char** argv = 0;
- #ifndef F_SETOWN_BUG
- #ifdef F_SETOWN
- extern int old_fcntl_owner;
- #endif /* ! defined (F_SETOWN) */
- #endif /* F_SETOWN_BUG */
-
- x_noop_count = 0;
-
- x_focus_frame = x_highlight_frame = 0;
-
- #ifdef USE_X_TOOLKIT
- argv = (char **) XtMalloc (7 * sizeof (char *));
- argv[0] = "";
- argv[1] = "-display";
- argv[2] = display_name;
- argv[3] = "-name";
- /* Usually `emacs', but not always. */
- argv[4] = resource_name;
- argc = 5;
- if (xrm_option)
- {
- argv[argc++] = "-xrm";
- argv[argc++] = xrm_option;
- }
- Xt_app_shell = XtAppInitialize (&Xt_app_con, "Emacs",
- emacs_options, XtNumber (emacs_options),
- &argc, argv,
- NULL, NULL, 0);
- XtFree ((char *)argv);
- x_current_display = XtDisplay (Xt_app_shell);
-
- #else /* not USE_X_TOOLKIT */
- x_current_display = XOpenDisplay (display_name);
- #endif /* not USE_X_TOOLKIT */
- if (x_current_display == 0)
- fatal ("X server %s not responding.\n\
- Check the DISPLAY environment variable or use \"-d\"\n",
- display_name);
-
- #ifdef HAVE_X11
- {
- #if 0
- XSetAfterFunction (x_current_display, x_trace_wire);
- #endif /* ! 0 */
- x_id_name = (char *) xmalloc (XSTRING (Vinvocation_name)->size
- + XSTRING (Vsystem_name)->size
- + 2);
- sprintf (x_id_name, "%s@%s",
- XSTRING (Vinvocation_name)->data, XSTRING (Vsystem_name)->data);
- }
-
- /* Figure out which modifier bits mean what. */
- x_find_modifier_meanings ();
-
- /* Get the scroll bar cursor. */
- x_vertical_scroll_bar_cursor
- = XCreateFontCursor (x_current_display, XC_sb_v_double_arrow);
-
- #if 0
- /* Watch for PropertyNotify events on the root window; we use them
- to figure out when to invalidate our cache of the cut buffers. */
- x_watch_cut_buffer_cache ();
- #endif
-
- if (ConnectionNumber (x_current_display) != 0)
- change_keyboard_wait_descriptor (ConnectionNumber (x_current_display));
- change_input_fd (ConnectionNumber (x_current_display));
-
- #endif /* HAVE_X11 */
-
- #ifndef F_SETOWN_BUG
- #ifdef F_SETOWN
- old_fcntl_owner = fcntl (ConnectionNumber (x_current_display), F_GETOWN, 0);
- #ifdef F_SETOWN_SOCK_NEG
- /* stdin is a socket here */
- fcntl (ConnectionNumber (x_current_display), F_SETOWN, -getpid ());
- #else /* ! defined (F_SETOWN_SOCK_NEG) */
- fcntl (ConnectionNumber (x_current_display), F_SETOWN, getpid ());
- #endif /* ! defined (F_SETOWN_SOCK_NEG) */
- #endif /* ! defined (F_SETOWN) */
- #endif /* F_SETOWN_BUG */
-
- #ifdef SIGIO
- init_sigio ();
- #endif /* ! defined (SIGIO) */
-
- expose_all_windows = 0;
-
- clear_frame_hook = XTclear_frame;
- clear_end_of_line_hook = XTclear_end_of_line;
- ins_del_lines_hook = XTins_del_lines;
- change_line_highlight_hook = XTchange_line_highlight;
- insert_glyphs_hook = XTinsert_glyphs;
- write_glyphs_hook = XTwrite_glyphs;
- delete_glyphs_hook = XTdelete_glyphs;
- ring_bell_hook = XTring_bell;
- reset_terminal_modes_hook = XTreset_terminal_modes;
- set_terminal_modes_hook = XTset_terminal_modes;
- update_begin_hook = XTupdate_begin;
- update_end_hook = XTupdate_end;
- set_terminal_window_hook = XTset_terminal_window;
- read_socket_hook = XTread_socket;
- frame_up_to_date_hook = XTframe_up_to_date;
- cursor_to_hook = XTcursor_to;
- reassert_line_highlight_hook = XTreassert_line_highlight;
- mouse_position_hook = XTmouse_position;
- frame_rehighlight_hook = XTframe_rehighlight;
- frame_raise_lower_hook = XTframe_raise_lower;
- set_vertical_scroll_bar_hook = XTset_vertical_scroll_bar;
- condemn_scroll_bars_hook = XTcondemn_scroll_bars;
- redeem_scroll_bar_hook = XTredeem_scroll_bar;
- judge_scroll_bars_hook = XTjudge_scroll_bars;
-
- scroll_region_ok = 1; /* we'll scroll partial frames */
- char_ins_del_ok = 0; /* just as fast to write the line */
- line_ins_del_ok = 1; /* we'll just blt 'em */
- fast_clear_end_of_line = 1; /* X does this well */
- memory_below_frame = 0; /* we don't remember what scrolls
- off the bottom */
- baud_rate = 19200;
-
- /* Try to use interrupt input; if we can't, then start polling. */
- Fset_input_mode (Qt, Qnil, Qt, Qnil);
-
- /* Note that there is no real way portable across R3/R4 to get the
- original error handler. */
- XHandleError (x_error_quitter);
- XHandleIOError (x_io_error_quitter);
-
- /* Disable Window Change signals; they are handled by X events. */
- #ifdef SIGWINCH
- signal (SIGWINCH, SIG_DFL);
- #endif /* ! defined (SIGWINCH) */
-
- signal (SIGPIPE, x_connection_closed);
- }
-
- void
- syms_of_xterm ()
- {
- staticpro (&last_mouse_scroll_bar);
- last_mouse_scroll_bar = Qnil;
- staticpro (&mouse_face_window);
- mouse_face_window = Qnil;
- }
- #endif /* ! defined (HAVE_X11) */
- #endif /* ! defined (HAVE_X_WINDOWS) */
-