/* X output and frame manipulation routines. Copyright (C) 1994, 1995 Board of Trustees, University of Illinois. Copyright (C) 1994 Lucid, Inc. Copyright (C) 1995 Sun Microsystems, Inc. This file is part of XEmacs. XEmacs 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. XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Not in FSF. */ /* Author: Chuck Thompson */ /* Lots of work done by Ben Wing for Mule */ #include #include "lisp.h" #include "console-x.h" #include "EmacsFrame.h" #include "EmacsFrameP.h" #include "xgccache.h" #include "glyphs-x.h" #include "objects-x.h" #include "buffer.h" #include "debug.h" #include "faces.h" #include "frame.h" #include "gutter.h" #include "redisplay.h" #include "sysdep.h" #include "window.h" #include #include "sysproc.h" /* for select() */ #ifdef MULE #include "mule-ccl.h" #include "file-coding.h" /* for CCL conversion */ #endif /* Number of pixels below each line. */ int x_interline_space; /* #### implement me */ #define EOL_CURSOR_WIDTH 5 static void x_output_vertical_divider (struct window *w, int clear); static void x_output_blank (struct window *w, struct display_line *dl, struct rune *rb, int start_pixpos, int cursor_start, int cursor_width); static void x_output_hline (struct window *w, struct display_line *dl, struct rune *rb); static void x_redraw_exposed_window (struct window *w, int x, int y, int width, int height); static void x_redraw_exposed_windows (Lisp_Object window, int x, int y, int width, int height); static void x_output_eol_cursor (struct window *w, struct display_line *dl, int xpos, face_index findex); static void x_clear_frame (struct frame *f); static void x_clear_frame_windows (Lisp_Object window); /* Note: We do not use the Xmb*() functions and XFontSets. Those functions are generally losing for a number of reasons: 1) They only support one locale (e.g. you could display Japanese and ASCII text, but not mixed Japanese/Chinese text). You could maybe call setlocale() frequently to try to deal with this, but that would generally fail because an XFontSet is tied to one locale and won't have the other character sets in it. 2) Not all (or even very many) OS's support the useful locales. For example, as far as I know SunOS and Solaris only support the Japanese locale if you get the special Asian-language version of the OS. Yuck yuck yuck. Linux doesn't support the Japanese locale at all. 3) The locale support in X only exists in R5, not in R4. (Not sure how big of a problem this is: how many people are using R4?) 4) Who knows if the multi-byte text format (which is locale- specific) is even the same for the same locale on different OS's? It's not even documented anywhere that I can find what the multi-byte text format for the Japanese locale under SunOS and Solaris is, but I assume it's EUC. */ struct textual_run { Lisp_Object charset; unsigned char *ptr; int len; int dimension; }; /* Separate out the text in DYN into a series of textual runs of a particular charset. Also convert the characters as necessary into the format needed by XDrawImageString(), XDrawImageString16(), et al. (This means converting to one or two byte format, possibly tweaking the high bits, and possibly running a CCL program.) You must pre-allocate the space used and pass it in. (This is done so you can alloca() the space.) You need to allocate (2 * len) bytes of TEXT_STORAGE and (len * sizeof (struct textual_run)) bytes of RUN_STORAGE, where LEN is the length of the dynarr. Returns the number of runs actually used. */ static int separate_textual_runs (unsigned char *text_storage, struct textual_run *run_storage, const Emchar *str, Charcount len) { Lisp_Object prev_charset = Qunbound; /* not Qnil because that is a possible valid charset when MULE is not defined */ int runs_so_far = 0; int i; #ifdef MULE struct ccl_program char_converter; int need_ccl_conversion = 0; #endif for (i = 0; i < len; i++) { Emchar ch = str[i]; Lisp_Object charset; int byte1, byte2; int dimension; int graphic; BREAKUP_CHAR (ch, charset, byte1, byte2); dimension = XCHARSET_DIMENSION (charset); graphic = XCHARSET_GRAPHIC (charset); if (!EQ (charset, prev_charset)) { run_storage[runs_so_far].ptr = text_storage; run_storage[runs_so_far].charset = charset; run_storage[runs_so_far].dimension = dimension; if (runs_so_far) { run_storage[runs_so_far - 1].len = text_storage - run_storage[runs_so_far - 1].ptr; if (run_storage[runs_so_far - 1].dimension == 2) run_storage[runs_so_far - 1].len >>= 1; } runs_so_far++; prev_charset = charset; #ifdef MULE { Lisp_Object ccl_prog = XCHARSET_CCL_PROGRAM (charset); if ((!NILP (ccl_prog)) && (setup_ccl_program (&char_converter, ccl_prog) >= 0)) need_ccl_conversion = 1; } #endif } if (graphic == 0) { byte1 &= 0x7F; byte2 &= 0x7F; } else if (graphic == 1) { byte1 |= 0x80; byte2 |= 0x80; } #ifdef MULE if (need_ccl_conversion) { char_converter.reg[0] = XCHARSET_ID (charset); char_converter.reg[1] = byte1; char_converter.reg[2] = byte2; ccl_driver (&char_converter, 0, 0, 0, 0, CCL_MODE_ENCODING); byte1 = char_converter.reg[1]; byte2 = char_converter.reg[2]; } #endif *text_storage++ = (unsigned char) byte1; if (dimension == 2) *text_storage++ = (unsigned char) byte2; } if (runs_so_far) { run_storage[runs_so_far - 1].len = text_storage - run_storage[runs_so_far - 1].ptr; if (run_storage[runs_so_far - 1].dimension == 2) run_storage[runs_so_far - 1].len >>= 1; } return runs_so_far; } /****************************************************************************/ /* */ /* X output routines */ /* */ /****************************************************************************/ static int x_text_width_single_run (struct face_cachel *cachel, struct textual_run *run) { Lisp_Object font_inst = FACE_CACHEL_FONT (cachel, run->charset); Lisp_Font_Instance *fi = XFONT_INSTANCE (font_inst); if (!fi->proportional_p) return fi->width * run->len; else { if (run->dimension == 2) return XTextWidth16 (FONT_INSTANCE_X_FONT (fi), (XChar2b *) run->ptr, run->len); else return XTextWidth (FONT_INSTANCE_X_FONT (fi), (char *) run->ptr, run->len); } } /* x_text_width Given a string and a face, return the string's length in pixels when displayed in the font associated with the face. */ static int x_text_width (struct frame *f, struct face_cachel *cachel, const Emchar *str, Charcount len) { int width_so_far = 0; unsigned char *text_storage = (unsigned char *) alloca (2 * len); struct textual_run *runs = alloca_array (struct textual_run, len); int nruns; int i; nruns = separate_textual_runs (text_storage, runs, str, len); for (i = 0; i < nruns; i++) width_so_far += x_text_width_single_run (cachel, runs + i); return width_so_far; } /***************************************************************************** x_divider_height Return the height of the horizontal divider. This is a function because divider_height is a device method. #### If we add etched horizontal divider lines this will have to get smarter. ****************************************************************************/ static int x_divider_height (void) { return 1; } /***************************************************************************** x_eol_cursor_width Return the width of the end-of-line cursor. This is a function because eol_cursor_width is a device method. ****************************************************************************/ static int x_eol_cursor_width (void) { return EOL_CURSOR_WIDTH; } /***************************************************************************** x_window_output_begin Perform any necessary initialization prior to an update. ****************************************************************************/ static void x_window_output_begin (struct window *w) { } /***************************************************************************** x_window_output_end Perform any necessary flushing of queues when an update has completed. ****************************************************************************/ static void x_window_output_end (struct window *w) { XFlush (DEVICE_X_DISPLAY (WINDOW_XDEVICE (w))); } /***************************************************************************** x_output_display_block Given a display line, a block number for that start line, output all runes between start and end in the specified display block. ****************************************************************************/ static void x_output_display_block (struct window *w, struct display_line *dl, int block, int start, int end, int start_pixpos, int cursor_start, int cursor_width, int cursor_height) { struct frame *f = XFRAME (w->frame); Emchar_dynarr *buf; Lisp_Object window; struct display_block *db = Dynarr_atp (dl->display_blocks, block); rune_dynarr *rba = db->runes; struct rune *rb; int elt = start; face_index findex; int xpos, width = 0; Lisp_Object charset = Qunbound; /* Qnil is a valid charset when MULE is not defined */ XSETWINDOW (window, w); rb = Dynarr_atp (rba, start); if (!rb) /* Nothing to do so don't do anything. */ return; findex = rb->findex; xpos = rb->xpos; if (rb->type == RUNE_CHAR) charset = CHAR_CHARSET (rb->object.chr.ch); if (end < 0) end = Dynarr_length (rba); buf = Dynarr_new (Emchar); while (elt < end) { rb = Dynarr_atp (rba, elt); if (rb->findex == findex && rb->type == RUNE_CHAR && rb->object.chr.ch != '\n' && rb->cursor_type != CURSOR_ON && EQ (charset, CHAR_CHARSET (rb->object.chr.ch))) { Dynarr_add (buf, rb->object.chr.ch); width += rb->width; elt++; } else { if (Dynarr_length (buf)) { x_output_string (w, dl, buf, xpos, 0, start_pixpos, width, findex, 0, cursor_start, cursor_width, cursor_height); xpos = rb->xpos; width = 0; } Dynarr_reset (buf); width = 0; if (rb->type == RUNE_CHAR) { findex = rb->findex; xpos = rb->xpos; charset = CHAR_CHARSET (rb->object.chr.ch); if (rb->cursor_type == CURSOR_ON) { if (rb->object.chr.ch == '\n') { x_output_eol_cursor (w, dl, xpos, findex); } else { Dynarr_add (buf, rb->object.chr.ch); x_output_string (w, dl, buf, xpos, 0, start_pixpos, rb->width, findex, 1, cursor_start, cursor_width, cursor_height); Dynarr_reset (buf); } xpos += rb->width; elt++; } else if (rb->object.chr.ch == '\n') { /* Clear in case a cursor was formerly here. */ redisplay_clear_region (window, findex, xpos, DISPLAY_LINE_YPOS (dl), rb->width, DISPLAY_LINE_HEIGHT (dl)); elt++; } } else if (rb->type == RUNE_BLANK || rb->type == RUNE_HLINE) { if (rb->type == RUNE_BLANK) x_output_blank (w, dl, rb, start_pixpos, cursor_start, cursor_width); else { /* #### Our flagging of when we need to redraw the modeline shadows sucks. Since RUNE_HLINE is only used by the modeline at the moment it is a good bet that if it gets redrawn then we should also redraw the shadows. This won't be true forever. We borrow the shadow_thickness_changed flag for now. */ w->shadow_thickness_changed = 1; x_output_hline (w, dl, rb); } elt++; if (elt < end) { rb = Dynarr_atp (rba, elt); findex = rb->findex; xpos = rb->xpos; } } else if (rb->type == RUNE_DGLYPH) { Lisp_Object instance; struct display_box dbox; struct display_glyph_area dga; redisplay_calculate_display_boxes (dl, rb->xpos, rb->object.dglyph.xoffset, rb->object.dglyph.yoffset, start_pixpos, rb->width, &dbox, &dga); XSETWINDOW (window, w); instance = glyph_image_instance (rb->object.dglyph.glyph, window, ERROR_ME_NOT, 1); findex = rb->findex; if (IMAGE_INSTANCEP (instance)) { switch (XIMAGE_INSTANCE_TYPE (instance)) { case IMAGE_MONO_PIXMAP: case IMAGE_COLOR_PIXMAP: redisplay_output_pixmap (w, instance, &dbox, &dga, findex, cursor_start, cursor_width, cursor_height, 0); break; case IMAGE_WIDGET: if (EQ (XIMAGE_INSTANCE_WIDGET_TYPE (instance), Qlayout)) { redisplay_output_layout (window, instance, &dbox, &dga, findex, cursor_start, cursor_width, cursor_height); break; } case IMAGE_SUBWINDOW: redisplay_output_subwindow (w, instance, &dbox, &dga, findex, cursor_start, cursor_width, cursor_height); break; case IMAGE_NOTHING: /* nothing is as nothing does */ break; case IMAGE_TEXT: case IMAGE_POINTER: default: ABORT (); } IMAGE_INSTANCE_OPTIMIZE_OUTPUT (XIMAGE_INSTANCE (instance)) = 0; } xpos += rb->width; elt++; } else ABORT (); } } if (Dynarr_length (buf)) x_output_string (w, dl, buf, xpos, 0, start_pixpos, width, findex, 0, cursor_start, cursor_width, cursor_height); /* #### This is really conditionalized well for optimized performance. */ if (dl->modeline && !EQ (Qzero, w->modeline_shadow_thickness) && (f->clear || f->windows_structure_changed || w->shadow_thickness_changed)) bevel_modeline (w, dl); Dynarr_free (buf); } /***************************************************************************** x_bevel_area Draw shadows for the given area in the given face. ****************************************************************************/ static void x_bevel_area (struct window *w, face_index findex, int x, int y, int width, int height, int shadow_thickness, int edges, enum edge_style style) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); EmacsFrame ef = (EmacsFrame) FRAME_X_TEXT_WIDGET (f); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); Pixel top_shadow_pixel, bottom_shadow_pixel, background_pixel; Lisp_Object tmp_pixel; XColor tmp_color; XGCValues gcv; GC top_shadow_gc, bottom_shadow_gc, background_gc; int use_pixmap = 0; int flip_gcs = 0; unsigned long mask; assert (shadow_thickness >=0); memset (&gcv, ~0, sizeof (XGCValues)); tmp_pixel = WINDOW_FACE_CACHEL_BACKGROUND (w, findex); tmp_color = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); /* First, get the GC's. */ top_shadow_pixel = tmp_color.pixel; bottom_shadow_pixel = tmp_color.pixel; background_pixel = tmp_color.pixel; x_generate_shadow_pixels (f, &top_shadow_pixel, &bottom_shadow_pixel, background_pixel, ef->core.background_pixel); tmp_pixel = WINDOW_FACE_CACHEL_FOREGROUND (w, findex); tmp_color = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); gcv.background = tmp_color.pixel; gcv.graphics_exposures = False; mask = GCForeground | GCBackground | GCGraphicsExposures; /* If we can't distinguish one of the shadows (the color is the same as the background), it's better to use a pixmap to generate a dithered gray. */ if (top_shadow_pixel == background_pixel || bottom_shadow_pixel == background_pixel) use_pixmap = 1; if (use_pixmap) { if (DEVICE_X_GRAY_PIXMAP (d) == None) { DEVICE_X_GRAY_PIXMAP (d) = XCreatePixmapFromBitmapData (dpy, x_win, (char *) gray_bits, gray_width, gray_height, 1, 0, 1); } tmp_pixel = WINDOW_FACE_CACHEL_BACKGROUND (w, findex); tmp_color = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); gcv.foreground = tmp_color.pixel; /* this is needed because the GC draws with a pixmap here */ gcv.fill_style = FillOpaqueStippled; gcv.stipple = DEVICE_X_GRAY_PIXMAP (d); top_shadow_gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, (mask | GCStipple | GCFillStyle)); tmp_pixel = WINDOW_FACE_CACHEL_FOREGROUND (w, findex); tmp_color = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); bottom_shadow_pixel = tmp_color.pixel; flip_gcs = (bottom_shadow_pixel == WhitePixelOfScreen (DefaultScreenOfDisplay (dpy))); } else { gcv.foreground = top_shadow_pixel; top_shadow_gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, mask); } gcv.foreground = bottom_shadow_pixel; bottom_shadow_gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, mask); if (use_pixmap && flip_gcs) { GC tmp_gc = bottom_shadow_gc; bottom_shadow_gc = top_shadow_gc; top_shadow_gc = tmp_gc; } gcv.foreground = background_pixel; background_gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, mask); /* possibly revert the GC's This will give a depressed look to the divider */ if (style == EDGE_ETCHED_IN || style == EDGE_BEVEL_IN) { GC temp; temp = top_shadow_gc; top_shadow_gc = bottom_shadow_gc; bottom_shadow_gc = temp; } if (style == EDGE_ETCHED_IN || style == EDGE_ETCHED_OUT) shadow_thickness /= 2; /* Draw the shadows around the divider line */ x_output_shadows (f, x, y, width, height, top_shadow_gc, bottom_shadow_gc, background_gc, shadow_thickness, edges); if (style == EDGE_ETCHED_IN || style == EDGE_ETCHED_OUT) { /* Draw the shadows around the divider line */ x_output_shadows (f, x + shadow_thickness, y + shadow_thickness, width - 2*shadow_thickness, height - 2*shadow_thickness, bottom_shadow_gc, top_shadow_gc, background_gc, shadow_thickness, edges); } } /***************************************************************************** x_get_gc Given a number of parameters return a GC with those properties. ****************************************************************************/ static GC x_get_gc (struct device *d, Lisp_Object font, Lisp_Object fg, Lisp_Object bg, Lisp_Object bg_pmap, Lisp_Object lwidth) { XGCValues gcv; unsigned long mask; memset (&gcv, ~0, sizeof (XGCValues)); gcv.graphics_exposures = False; /* Make absolutely sure that we don't pick up a clipping region in the GC returned by this function. */ gcv.clip_mask = None; gcv.clip_x_origin = 0; gcv.clip_y_origin = 0; gcv.fill_style = FillSolid; mask = GCGraphicsExposures | GCClipMask | GCClipXOrigin | GCClipYOrigin; mask |= GCFillStyle; if (!NILP (font)) { gcv.font = FONT_INSTANCE_X_FONT (XFONT_INSTANCE (font))->fid; mask |= GCFont; } /* evil kludge! */ if (!NILP (fg) && !COLOR_INSTANCEP (fg) && !INTP (fg)) { /* #### I fixed once case where this was getting it. It was a bad macro expansion (compiler bug). */ stderr_out ("Help! x_get_gc got a bogus fg value! fg = "); debug_print (fg); fg = Qnil; } if (!NILP (fg)) { if (COLOR_INSTANCEP (fg)) gcv.foreground = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (fg)).pixel; else gcv.foreground = XINT (fg); mask |= GCForeground; } if (!NILP (bg)) { if (COLOR_INSTANCEP (bg)) gcv.background = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (bg)).pixel; else gcv.background = XINT (bg); mask |= GCBackground; } /* This special case comes from a request to draw text with a face which has the dim property. We'll use a stippled foreground GC. */ if (EQ (bg_pmap, Qdim)) { assert (DEVICE_X_GRAY_PIXMAP (d) != None); gcv.fill_style = FillStippled; gcv.stipple = DEVICE_X_GRAY_PIXMAP (d); mask |= (GCFillStyle | GCStipple); } else if (IMAGE_INSTANCEP (bg_pmap) && IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (bg_pmap))) { if (XIMAGE_INSTANCE_PIXMAP_DEPTH (bg_pmap) == 0) { gcv.fill_style = FillOpaqueStippled; gcv.stipple = XIMAGE_INSTANCE_X_PIXMAP (bg_pmap); mask |= (GCStipple | GCFillStyle); } else { gcv.fill_style = FillTiled; gcv.tile = XIMAGE_INSTANCE_X_PIXMAP (bg_pmap); mask |= (GCTile | GCFillStyle); } } if (!NILP (lwidth)) { gcv.line_width = XINT (lwidth); mask |= GCLineWidth; } return gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, mask); } /***************************************************************************** x_output_string Given a string and a starting position, output that string in the given face. If cursor is true, draw a cursor around the string. Correctly handles multiple charsets in the string. The meaning of the parameters is something like this: W Window that the text is to be displayed in. DL Display line that this text is on. The values in the structure are used to determine the vertical position and clipping range of the text. BUF Dynamic array of Emchars specifying what is actually to be drawn. XPOS X position in pixels where the text should start being drawn. XOFFSET Number of pixels to be chopped off the left side of the text. The effect is as if the text were shifted to the left this many pixels and clipped at XPOS. CLIP_START Clip everything left of this X position. WIDTH Clip everything right of XPOS + WIDTH. FINDEX Index for the face cache element describing how to display the text. CURSOR #### I don't understand this. There's something strange and overcomplexified with this variable. Chuck, explain please? CURSOR_START Starting X position of cursor. CURSOR_WIDTH Width of cursor in pixels. CURSOR_HEIGHT Height of cursor in pixels. Starting Y position of cursor is the top of the text line. The cursor is drawn sometimes whether or not CURSOR is set. ??? ****************************************************************************/ void x_output_string (struct window *w, struct display_line *dl, Emchar_dynarr *buf, int xpos, int xoffset, int clip_start, int width, face_index findex, int cursor, int cursor_start, int cursor_width, int cursor_height) { /* General variables */ struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Lisp_Object device; Lisp_Object window; Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); int clip_end; /* Cursor-related variables */ int focus = EQ (w->frame, DEVICE_FRAME_WITH_FOCUS_REAL (d)); int cursor_clip; Lisp_Object bar_cursor_value = symbol_value_in_buffer (Qbar_cursor, WINDOW_BUFFER (w)); struct face_cachel *cursor_cachel = 0; /* Text-related variables */ Lisp_Object bg_pmap; GC bgc, gc; int height; int len = Dynarr_length (buf); unsigned char *text_storage = (unsigned char *) alloca (2 * len); struct textual_run *runs = alloca_array (struct textual_run, len); int nruns; int i; struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, findex); XSETDEVICE (device, d); XSETWINDOW (window, w); if (width < 0) width = x_text_width (f, cachel, Dynarr_atp (buf, 0), Dynarr_length (buf)); height = DISPLAY_LINE_HEIGHT (dl); /* Regularize the variables passed in. */ if (clip_start < xpos) clip_start = xpos; clip_end = xpos + width; if (clip_start >= clip_end) /* It's all clipped out. */ return; xpos -= xoffset; /* make sure the area we are about to display is subwindow free. */ redisplay_unmap_subwindows_maybe (f, clip_start, DISPLAY_LINE_YPOS (dl), clip_end - clip_start, DISPLAY_LINE_HEIGHT (dl)); nruns = separate_textual_runs (text_storage, runs, Dynarr_atp (buf, 0), Dynarr_length (buf)); cursor_clip = (cursor_start >= clip_start && cursor_start < clip_end); /* This cursor code is really a mess. */ if (!NILP (w->text_cursor_visible_p) && (cursor || cursor_clip || (cursor_width && (cursor_start + cursor_width >= clip_start) && !NILP (bar_cursor_value)))) { /* These have to be in separate statements in order to avoid a compiler bug. */ face_index sucks = get_builtin_face_cache_index (w, Vtext_cursor_face); cursor_cachel = WINDOW_FACE_CACHEL (w, sucks); /* We have to reset this since any call to WINDOW_FACE_CACHEL may cause the cache to resize and any pointers to it to become invalid. */ cachel = WINDOW_FACE_CACHEL (w, findex); } #ifdef HAVE_XIM if (cursor && focus && (cursor_start == clip_start) && cursor_height) XIM_SetSpotLocation (f, xpos - 2, dl->ypos + dl->descent - 2); #endif /* HAVE_XIM */ bg_pmap = cachel->background_pixmap; if (!IMAGE_INSTANCEP (bg_pmap) || !IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (bg_pmap))) bg_pmap = Qnil; if ((cursor && focus && NILP (bar_cursor_value) && !NILP (w->text_cursor_visible_p)) || NILP (bg_pmap)) bgc = 0; else bgc = x_get_gc (d, Qnil, cachel->foreground, cachel->background, bg_pmap, Qnil); if (bgc) XFillRectangle (dpy, x_win, bgc, clip_start, DISPLAY_LINE_YPOS (dl), clip_end - clip_start, height); for (i = 0; i < nruns; i++) { Lisp_Object font = FACE_CACHEL_FONT (cachel, runs[i].charset); Lisp_Font_Instance *fi = XFONT_INSTANCE (font); int this_width; int need_clipping; if (EQ (font, Vthe_null_font_instance)) continue; this_width = x_text_width_single_run (cachel, runs + i); need_clipping = (dl->clip || clip_start > xpos || clip_end < xpos + this_width); /* XDrawImageString only clears the area equal to the height of the given font. It is possible that a font is being displayed on a line taller than it is, so this would cause us to fail to clear some areas. */ if ((int) fi->height < (int) (height + dl->clip + dl->top_clip)) { int clear_start = max (xpos, clip_start); int clear_end = min (xpos + this_width, clip_end); if (cursor) { int ypos1_line, ypos1_string, ypos2_line, ypos2_string; ypos1_string = dl->ypos - fi->ascent; ypos2_string = dl->ypos + fi->descent; ypos1_line = DISPLAY_LINE_YPOS (dl); ypos2_line = ypos1_line + DISPLAY_LINE_HEIGHT (dl); /* Make sure we don't clear below the real bottom of the line. */ if (ypos1_string > ypos2_line) ypos1_string = ypos2_line; if (ypos2_string > ypos2_line) ypos2_string = ypos2_line; if (ypos1_line < ypos1_string) { redisplay_clear_region (window, findex, clear_start, ypos1_line, clear_end - clear_start, ypos1_string - ypos1_line); } if (ypos2_line > ypos2_string) { redisplay_clear_region (window, findex, clear_start, ypos2_string, clear_end - clear_start, ypos2_line - ypos2_string); } } else { redisplay_clear_region (window, findex, clear_start, DISPLAY_LINE_YPOS (dl), clear_end - clear_start, height); } } if (cursor && cursor_cachel && focus && NILP (bar_cursor_value)) gc = x_get_gc (d, font, cursor_cachel->foreground, cursor_cachel->background, Qnil, Qnil); else if (cachel->dim) { /* Ensure the gray bitmap exists */ if (DEVICE_X_GRAY_PIXMAP (d) == None) DEVICE_X_GRAY_PIXMAP (d) = XCreateBitmapFromData (dpy, x_win, (char *)gray_bits, gray_width, gray_height); /* Request a GC with the gray stipple pixmap to draw dimmed text */ gc = x_get_gc (d, font, cachel->foreground, cachel->background, Qdim, Qnil); } else gc = x_get_gc (d, font, cachel->foreground, cachel->background, Qnil, Qnil); if (need_clipping) { XRectangle clip_box[1]; clip_box[0].x = 0; clip_box[0].y = 0; clip_box[0].width = clip_end - clip_start; clip_box[0].height = height; XSetClipRectangles (dpy, gc, clip_start, DISPLAY_LINE_YPOS (dl), clip_box, 1, Unsorted); } if (runs[i].dimension == 1) (bgc ? XDrawString : XDrawImageString) (dpy, x_win, gc, xpos, dl->ypos, (char *) runs[i].ptr, runs[i].len); else (bgc ? XDrawString16 : XDrawImageString16) (dpy, x_win, gc, xpos, dl->ypos, (XChar2b *) runs[i].ptr, runs[i].len); /* We draw underlines in the same color as the text. */ if (cachel->underline) { /* upos is naturally signed, why would anyone think otherwise? uthick is signed to avoid unsigned propagation. */ long upos, uthick; XFontStruct *xfont; xfont = FONT_INSTANCE_X_FONT (XFONT_INSTANCE (font)); if (!XGetFontProperty (xfont, XA_UNDERLINE_POSITION, &upos)) upos = dl->descent / 2; if (!XGetFontProperty (xfont, XA_UNDERLINE_THICKNESS, &uthick)) uthick = 1; if (dl->ypos + upos < dl->ypos + dl->descent - dl->clip) { if (dl->ypos + upos + uthick > dl->ypos + dl->descent - dl->clip) uthick = dl->descent - dl->clip - upos; if (uthick == 1) { XDrawLine (dpy, x_win, gc, xpos, dl->ypos + upos, xpos + this_width, dl->ypos + upos); } else if (uthick > 1) { XFillRectangle (dpy, x_win, gc, xpos, dl->ypos + upos, this_width, uthick); } } } if (cachel->strikethru) { /* ascent, descent, and upos are naturally signed; why would anyone think otherwise? uthick is signed to avoid unsigned propagation. */ long ascent, descent, upos, uthick; XFontStruct *xfont; xfont = FONT_INSTANCE_X_FONT (XFONT_INSTANCE (font)); if (!XGetFontProperty (xfont, XA_STRIKEOUT_ASCENT, &ascent)) ascent = xfont->ascent; if (!XGetFontProperty (xfont, XA_STRIKEOUT_DESCENT, &descent)) descent = xfont->descent; if (!XGetFontProperty (xfont, XA_UNDERLINE_THICKNESS, &uthick)) uthick = 1; upos = ascent - ((ascent + descent) / 2) + 1; /* Generally, upos will be positive (above the baseline),so subtract */ if (dl->ypos - upos < dl->ypos + dl->descent - dl->clip) { if (dl->ypos - upos + uthick > dl->ypos + dl->descent - dl->clip) uthick = dl->descent - dl->clip + upos; if (uthick == 1) { XDrawLine (dpy, x_win, gc, xpos, dl->ypos - upos, xpos + this_width, dl->ypos - upos); } else if (uthick > 1) { XFillRectangle (dpy, x_win, gc, xpos, dl->ypos + upos, this_width, uthick); } } } /* Restore the GC */ if (need_clipping) { XSetClipMask (dpy, gc, None); XSetClipOrigin (dpy, gc, 0, 0); } /* If we are actually superimposing the cursor then redraw with just the appropriate section highlighted. */ if (cursor_clip && !cursor && focus && cursor_cachel) { GC cgc; XRectangle clip_box[1]; cgc = x_get_gc (d, font, cursor_cachel->foreground, cursor_cachel->background, Qnil, Qnil); clip_box[0].x = 0; clip_box[0].y = 0; clip_box[0].width = cursor_width; clip_box[0].height = height; XSetClipRectangles (dpy, cgc, cursor_start, DISPLAY_LINE_YPOS (dl), clip_box, 1, Unsorted); if (runs[i].dimension == 1) XDrawImageString (dpy, x_win, cgc, xpos, dl->ypos, (char *) runs[i].ptr, runs[i].len); else XDrawImageString16 (dpy, x_win, cgc, xpos, dl->ypos, (XChar2b *) runs[i].ptr, runs[i].len); XSetClipMask (dpy, cgc, None); XSetClipOrigin (dpy, cgc, 0, 0); } xpos += this_width; } /* Draw the non-focus box or bar-cursor as needed. */ /* Can't this logic be simplified? */ if (cursor_cachel && ((cursor && !focus && NILP (bar_cursor_value)) || (cursor_width && (cursor_start + cursor_width >= clip_start) && !NILP (bar_cursor_value)))) { int tmp_height, tmp_y; int bar_width = EQ (bar_cursor_value, Qt) ? 1 : 2; int need_clipping = (cursor_start < clip_start || clip_end < cursor_start + cursor_width); /* #### This value is correct (as far as I know) because all of the times we need to draw this cursor, we will be called with exactly one character, so we know we can always use runs[0]. This is bogus as all hell, however. The cursor handling in this function is way bogus and desperately needs to be cleaned up. (In particular, the drawing of the cursor should really really be separated out of this function. This may be a bit tricky now because this function itself does way too much stuff, a lot of which needs to be moved into redisplay.c) This is the only way to be able to easily add new cursor types or (e.g.) make the bar cursor be able to span two characters instead of overlaying just one. */ int bogusly_obtained_ascent_value = XFONT_INSTANCE (FACE_CACHEL_FONT (cachel, runs[0].charset))->ascent; if (!NILP (bar_cursor_value)) { gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, make_int (bar_width)); } else { gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, Qnil); } tmp_y = dl->ypos - bogusly_obtained_ascent_value; tmp_height = cursor_height; if (tmp_y + tmp_height > (int) (DISPLAY_LINE_YPOS(dl) + height)) { tmp_y = DISPLAY_LINE_YPOS (dl) + height - tmp_height; if (tmp_y < (int) DISPLAY_LINE_YPOS (dl)) tmp_y = DISPLAY_LINE_YPOS (dl); tmp_height = DISPLAY_LINE_YPOS (dl) + height - tmp_y; } if (need_clipping) { XRectangle clip_box[1]; clip_box[0].x = 0; clip_box[0].y = 0; clip_box[0].width = clip_end - clip_start; clip_box[0].height = tmp_height; XSetClipRectangles (dpy, gc, clip_start, tmp_y, clip_box, 1, Unsorted); } if (!focus && NILP (bar_cursor_value)) { XDrawRectangle (dpy, x_win, gc, cursor_start, tmp_y, cursor_width - 1, tmp_height - 1); } else if (focus && !NILP (bar_cursor_value)) { XDrawLine (dpy, x_win, gc, cursor_start + bar_width - 1, tmp_y, cursor_start + bar_width - 1, tmp_y + tmp_height - 1); } /* Restore the GC */ if (need_clipping) { XSetClipMask (dpy, gc, None); XSetClipOrigin (dpy, gc, 0, 0); } } } void x_output_x_pixmap (struct frame *f, Lisp_Image_Instance *p, int x, int y, int xoffset, int yoffset, int width, int height, unsigned long fg, unsigned long bg, GC override_gc) { struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); GC gc; XGCValues gcv; unsigned long pixmap_mask; if (!override_gc) { memset (&gcv, ~0, sizeof (XGCValues)); gcv.graphics_exposures = False; gcv.foreground = fg; gcv.background = bg; pixmap_mask = GCForeground | GCBackground | GCGraphicsExposures; if (IMAGE_INSTANCE_X_MASK (p)) { gcv.function = GXcopy; gcv.clip_mask = IMAGE_INSTANCE_X_MASK (p); gcv.clip_x_origin = x - xoffset; gcv.clip_y_origin = y - yoffset; pixmap_mask |= (GCFunction | GCClipMask | GCClipXOrigin | GCClipYOrigin); /* Can't set a clip rectangle because we already have a mask. Is it possible to get an equivalent effect by changing the args to XCopyArea below rather than messing with a clip box? - dkindred@cs.cmu.edu Yes. We don't clip at all now - andy@xemacs.org */ } gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, pixmap_mask); } else { gc = override_gc; /* override_gc might have a mask already--we don't want to nuke it. Maybe we can insist that override_gc have no mask, or use one of the suggestions above. */ } /* depth of 0 means it's a bitmap, not a pixmap, and we should use XCopyPlane (1 = current foreground color, 0 = background) instead of XCopyArea, which means that the bits in the pixmap are actual pixel values, instead of symbolic of fg/bg. */ if (IMAGE_INSTANCE_PIXMAP_DEPTH (p) > 0) { XCopyArea (dpy, IMAGE_INSTANCE_X_PIXMAP_SLICE (p, IMAGE_INSTANCE_PIXMAP_SLICE (p)), x_win, gc, xoffset, yoffset, width, height, x, y); } else { XCopyPlane (dpy, IMAGE_INSTANCE_X_PIXMAP_SLICE (p, IMAGE_INSTANCE_PIXMAP_SLICE (p)), x_win, gc, xoffset, yoffset, width, height, x, y, 1L); } } static void x_output_pixmap (struct window *w, Lisp_Object image_instance, struct display_box *db, struct display_glyph_area *dga, face_index findex, int cursor_start, int cursor_width, int cursor_height, int bg_pixmap) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); /* Output the pixmap. */ { Lisp_Object tmp_pixel; XColor tmp_bcolor, tmp_fcolor; tmp_pixel = WINDOW_FACE_CACHEL_FOREGROUND (w, findex); tmp_fcolor = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); tmp_pixel = WINDOW_FACE_CACHEL_BACKGROUND (w, findex); tmp_bcolor = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); x_output_x_pixmap (f, p, db->xpos, db->ypos, dga->xoffset, dga->yoffset, dga->width, dga->height, tmp_fcolor.pixel, tmp_bcolor.pixel, 0); } /* Draw a cursor over top of the pixmap. */ if (cursor_width && cursor_height && (cursor_start >= db->xpos) && !NILP (w->text_cursor_visible_p) && (cursor_start < db->xpos + dga->width)) { GC gc; int focus = EQ (w->frame, DEVICE_FRAME_WITH_FOCUS_REAL (d)); struct face_cachel *cursor_cachel = WINDOW_FACE_CACHEL (w, get_builtin_face_cache_index (w, Vtext_cursor_face)); gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, Qnil); if (cursor_width > db->xpos + dga->width - cursor_start) cursor_width = db->xpos + dga->width - cursor_start; if (focus) { XFillRectangle (dpy, x_win, gc, cursor_start, db->ypos, cursor_width, cursor_height); } else { XDrawRectangle (dpy, x_win, gc, cursor_start, db->ypos, cursor_width, cursor_height); } } } /***************************************************************************** x_output_vertical_divider Draw a vertical divider down the right side of the given window. ****************************************************************************/ static void x_output_vertical_divider (struct window *w, int clear) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); Lisp_Object tmp_pixel; XColor tmp_color; XGCValues gcv; GC background_gc; enum edge_style style; unsigned long mask; int x, y1, y2, width, shadow_thickness, spacing, line_width; face_index div_face = get_builtin_face_cache_index (w, Vvertical_divider_face); width = window_divider_width (w); shadow_thickness = XINT (w->vertical_divider_shadow_thickness); spacing = XINT (w->vertical_divider_spacing); line_width = XINT (w->vertical_divider_line_width); x = WINDOW_RIGHT (w) - width; y1 = WINDOW_TOP (w); y2 = WINDOW_BOTTOM (w); memset (&gcv, ~0, sizeof (XGCValues)); tmp_pixel = WINDOW_FACE_CACHEL_BACKGROUND (w, div_face); tmp_color = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); /* First, get the GC's. */ gcv.background = tmp_color.pixel; gcv.foreground = tmp_color.pixel; gcv.graphics_exposures = False; mask = GCForeground | GCBackground | GCGraphicsExposures; background_gc = gc_cache_lookup (DEVICE_X_GC_CACHE (d), &gcv, mask); /* Clear the divider area first. This needs to be done when a window split occurs. */ if (clear) XClearArea (dpy, x_win, x, y1, width, y2 - y1, False); /* Draw the divider line. */ XFillRectangle (dpy, x_win, background_gc, x + spacing + shadow_thickness, y1, line_width, y2 - y1); if (shadow_thickness < 0) { shadow_thickness = -shadow_thickness; style = EDGE_BEVEL_IN; } else { style = EDGE_BEVEL_OUT; } /* Draw the shadows around the divider line */ x_bevel_area (w, div_face, x + spacing, y1, width - 2 * spacing, y2 - y1, shadow_thickness, EDGE_ALL, style); } /***************************************************************************** x_output_blank Output a blank by clearing the area it covers in the foreground color of its face. ****************************************************************************/ static void x_output_blank (struct window *w, struct display_line *dl, struct rune *rb, int start_pixpos, int cursor_start, int cursor_width) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); GC gc; struct face_cachel *cursor_cachel = WINDOW_FACE_CACHEL (w, get_builtin_face_cache_index (w, Vtext_cursor_face)); Lisp_Object bg_pmap; Lisp_Object buffer = WINDOW_BUFFER (w); Lisp_Object bar_cursor_value = symbol_value_in_buffer (Qbar_cursor, buffer); int x = rb->xpos; int y = DISPLAY_LINE_YPOS (dl); int width = rb->width; int height = DISPLAY_LINE_HEIGHT (dl); /* Unmap all subwindows in the area we are going to blank. */ redisplay_unmap_subwindows_maybe (f, x, y, width, height); if (start_pixpos > x) { if (start_pixpos >= (x + width)) return; else { width -= (start_pixpos - x); x = start_pixpos; } } bg_pmap = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, rb->findex); if (!IMAGE_INSTANCEP (bg_pmap) || !IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (bg_pmap))) bg_pmap = Qnil; if (NILP (bg_pmap)) gc = x_get_gc (d, Qnil, WINDOW_FACE_CACHEL_BACKGROUND (w, rb->findex), Qnil, Qnil, Qnil); else gc = x_get_gc (d, Qnil, WINDOW_FACE_CACHEL_FOREGROUND (w, rb->findex), WINDOW_FACE_CACHEL_BACKGROUND (w, rb->findex), bg_pmap, Qnil); XFillRectangle (dpy, x_win, gc, x, y, width, height); /* If this rune is marked as having the cursor, then it is actually representing a tab. */ if (!NILP (w->text_cursor_visible_p) && (rb->cursor_type == CURSOR_ON || (cursor_width && (cursor_start + cursor_width > x) && cursor_start < (x + width)))) { int cursor_height, cursor_y; int focus = EQ (w->frame, DEVICE_FRAME_WITH_FOCUS_REAL (d)); Lisp_Font_Instance *fi; fi = XFONT_INSTANCE (FACE_CACHEL_FONT (WINDOW_FACE_CACHEL (w, rb->findex), Vcharset_ascii)); gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, Qnil); cursor_y = dl->ypos - fi->ascent; cursor_height = fi->height; if (cursor_y + cursor_height > y + height) cursor_height = y + height - cursor_y; if (focus) { if (NILP (bar_cursor_value)) { XFillRectangle (dpy, x_win, gc, cursor_start, cursor_y, fi->width, cursor_height); } else { int bar_width = EQ (bar_cursor_value, Qt) ? 1 : 2; gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, make_int (bar_width)); XDrawLine (dpy, x_win, gc, cursor_start + bar_width - 1, cursor_y, cursor_start + bar_width - 1, cursor_y + cursor_height - 1); } } else if (NILP (bar_cursor_value)) { XDrawRectangle (dpy, x_win, gc, cursor_start, cursor_y, fi->width - 1, cursor_height - 1); } } } /***************************************************************************** x_output_hline Output a horizontal line in the foreground of its face. ****************************************************************************/ static void x_output_hline (struct window *w, struct display_line *dl, struct rune *rb) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); GC gc; int x = rb->xpos; int width = rb->width; int height = DISPLAY_LINE_HEIGHT (dl); int ypos1, ypos2, ypos3, ypos4; ypos1 = DISPLAY_LINE_YPOS (dl); ypos2 = ypos1 + rb->object.hline.yoffset; ypos3 = ypos2 + rb->object.hline.thickness; ypos4 = dl->ypos + dl->descent - dl->clip; /* First clear the area not covered by the line. */ if (height - rb->object.hline.thickness > 0) { gc = x_get_gc (d, Qnil, WINDOW_FACE_CACHEL_FOREGROUND (w, rb->findex), Qnil, Qnil, Qnil); if (ypos2 - ypos1 > 0) XFillRectangle (dpy, x_win, gc, x, ypos1, width, ypos2 - ypos1); if (ypos4 - ypos3 > 0) XFillRectangle (dpy, x_win, gc, x, ypos1, width, ypos2 - ypos1); } /* Now draw the line. */ gc = x_get_gc (d, Qnil, WINDOW_FACE_CACHEL_BACKGROUND (w, rb->findex), Qnil, Qnil, Qnil); if (ypos2 < ypos1) ypos2 = ypos1; if (ypos3 > ypos4) ypos3 = ypos4; if (ypos3 - ypos2 > 0) XFillRectangle (dpy, x_win, gc, x, ypos2, width, ypos3 - ypos2); } /***************************************************************************** x_output_shadows Draw a shadow around the given area using the given GC's. It is the callers responsibility to set the GC's appropriately. ****************************************************************************/ void x_output_shadows (struct frame *f, int x, int y, int width, int height, GC top_shadow_gc, GC bottom_shadow_gc, GC background_gc, int shadow_thickness, int edges) { struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); XSegment top_shadow[20], bottom_shadow[20]; int elt; if (shadow_thickness > 10) shadow_thickness = 10; else if (shadow_thickness < 0) shadow_thickness = 0; if (shadow_thickness > (width / 2)) shadow_thickness = width / 2; if (shadow_thickness > (height / 2)) shadow_thickness = height / 2; for (elt = 0; elt < shadow_thickness; elt++) { int seg1 = elt; int seg2 = (edges & EDGE_TOP) ? elt + shadow_thickness : elt; int bot_seg2 = (edges & EDGE_BOTTOM) ? elt + shadow_thickness : elt; if (edges & EDGE_TOP) { top_shadow[seg1].x1 = x + elt; top_shadow[seg1].x2 = x + width - elt - 1; top_shadow[seg1].y1 = top_shadow[seg1].y2 = y + elt; } if (edges & EDGE_LEFT) { top_shadow[seg2].x1 = top_shadow[seg2].x2 = x + elt; top_shadow[seg2].y1 = y + elt; top_shadow[seg2].y2 = y + height - elt - 1; } if (edges & EDGE_BOTTOM) { bottom_shadow[seg1].x1 = x + elt; bottom_shadow[seg1].x2 = x + width - elt - 1; bottom_shadow[seg1].y1 = bottom_shadow[seg1].y2 = y + height - elt - 1; } if (edges & EDGE_RIGHT) { bottom_shadow[bot_seg2].x1 = bottom_shadow[bot_seg2].x2 = x + width - elt - 1; bottom_shadow[bot_seg2].y1 = y + elt; bottom_shadow[bot_seg2].y2 = y + height - elt - 1; } } XDrawSegments (dpy, x_win, top_shadow_gc, top_shadow, ((edges & EDGE_TOP) ? shadow_thickness : 0) + ((edges & EDGE_LEFT) ? shadow_thickness : 0)); XDrawSegments (dpy, x_win, bottom_shadow_gc, bottom_shadow, ((edges & EDGE_BOTTOM) ? shadow_thickness : 0) + ((edges & EDGE_RIGHT) ? shadow_thickness : 0)); } /***************************************************************************** x_generate_shadow_pixels Given three pixels (top shadow, bottom shadow, background) massage the top and bottom shadow colors to guarantee that they differ. The background pixels are not allowed to be modified. This function modifies its parameters. This code is modified from code blatantly stolen from lwlib/xlwmenu.c ****************************************************************************/ #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ ? ((unsigned long) (x)) : ((unsigned long) (y))) void x_generate_shadow_pixels (struct frame *f, unsigned long *top_shadow, unsigned long *bottom_shadow, unsigned long background, unsigned long core_background) { struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Colormap cmap = DEVICE_X_COLORMAP (d); Visual *visual = DEVICE_X_VISUAL (d); XColor topc, botc; int top_frobbed = 0, bottom_frobbed = 0; /* If the top shadow is the same color as the background, try to adjust it. */ if (*top_shadow == background) { topc.pixel = background; XQueryColor (dpy, cmap, &topc); /* don't overflow/wrap! */ topc.red = MINL (65535, (unsigned long) topc.red * 6 / 5); topc.green = MINL (65535, (unsigned long) topc.green * 6 / 5); topc.blue = MINL (65535, (unsigned long) topc.blue * 6 / 5); if (allocate_nearest_color (dpy, cmap, visual, &topc)) { *top_shadow = topc.pixel; top_frobbed = 1; } } /* If the bottom shadow is the same color as the background, try to adjust it. */ if (*bottom_shadow == background) { botc.pixel = background; XQueryColor (dpy, cmap, &botc); botc.red = (unsigned short) ((unsigned long) botc.red * 3 / 5); botc.green = (unsigned short) ((unsigned long) botc.green * 3 / 5); botc.blue = (unsigned short) ((unsigned long) botc.blue * 3 / 5); if (allocate_nearest_color (dpy, cmap, visual, &botc)) { *bottom_shadow = botc.pixel; bottom_frobbed = 1; } } /* If we had to adjust both shadows, then we have to do some additional work. */ if (top_frobbed && bottom_frobbed) { int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3)); int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3)); if (bot_avg > top_avg) { Pixel tmp = *top_shadow; *top_shadow = *bottom_shadow; *bottom_shadow = tmp; } else if (topc.pixel == botc.pixel) { if (botc.pixel == background) *top_shadow = core_background; else *bottom_shadow = background; } } } /***************************************************************************** x_redraw_exposed_window Given a bounding box for an area that needs to be redrawn, determine what parts of what lines are contained within and re-output their contents. ****************************************************************************/ static void x_redraw_exposed_window (struct window *w, int x, int y, int width, int height) { struct frame *f = XFRAME (w->frame); int line; int start_x, start_y, end_x, end_y; int orig_windows_structure_changed; display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP); if (!NILP (w->vchild)) { x_redraw_exposed_windows (w->vchild, x, y, width, height); return; } else if (!NILP (w->hchild)) { x_redraw_exposed_windows (w->hchild, x, y, width, height); return; } /* If the window doesn't intersect the exposed region, we're done here. */ if (x >= WINDOW_RIGHT (w) || (x + width) <= WINDOW_LEFT (w) || y >= WINDOW_BOTTOM (w) || (y + height) <= WINDOW_TOP (w)) { return; } else { start_x = max (WINDOW_LEFT (w), x); end_x = min (WINDOW_RIGHT (w), (x + width)); start_y = max (WINDOW_TOP (w), y); end_y = min (WINDOW_BOTTOM (w), y + height); /* We do this to make sure that the 3D modelines get redrawn if they are in the exposed region. */ orig_windows_structure_changed = f->windows_structure_changed; f->windows_structure_changed = 1; } redisplay_clear_top_of_window (w); if (window_needs_vertical_divider (w)) { x_output_vertical_divider (w, 0); } for (line = 0; line < Dynarr_length (cdla); line++) { struct display_line *cdl = Dynarr_atp (cdla, line); int top_y = cdl->ypos - cdl->ascent; int bottom_y = cdl->ypos + cdl->descent; if (bottom_y >= start_y) { if (top_y > end_y) { if (line == 0) continue; else break; } else { output_display_line (w, 0, cdla, line, start_x, end_x); } } } f->windows_structure_changed = orig_windows_structure_changed; /* If there have never been any face cache_elements created, then this expose event doesn't actually have anything to do. */ if (Dynarr_largest (w->face_cachels)) redisplay_clear_bottom_of_window (w, cdla, start_y, end_y); } /***************************************************************************** x_redraw_exposed_windows For each window beneath the given window in the window hierarchy, ensure that it is redrawn if necessary after an Expose event. ****************************************************************************/ static void x_redraw_exposed_windows (Lisp_Object window, int x, int y, int width, int height) { for (; !NILP (window); window = XWINDOW (window)->next) x_redraw_exposed_window (XWINDOW (window), x, y, width, height); } /***************************************************************************** x_redraw_exposed_area For each window on the given frame, ensure that any area in the Exposed area is redrawn. ****************************************************************************/ void x_redraw_exposed_area (struct frame *f, int x, int y, int width, int height) { /* If any window on the frame has had its face cache reset then the redisplay structures are effectively invalid. If we attempt to use them we'll blow up. We mark the frame as changed to ensure that redisplay will do a full update. This probably isn't necessary but it can't hurt. */ #ifdef HAVE_TOOLBARS /* #### We would rather put these off as well but there is currently no combination of flags which will force an unchanged toolbar to redraw anyhow. */ MAYBE_FRAMEMETH (f, redraw_exposed_toolbars, (f, x, y, width, height)); #endif redraw_exposed_gutters (f, x, y, width, height); if (!f->window_face_cache_reset) { x_redraw_exposed_windows (f->root_window, x, y, width, height); XFlush (DEVICE_X_DISPLAY (XDEVICE (f->device))); } else MARK_FRAME_CHANGED (f); } /**************************************************************************** x_clear_region Clear the area in the box defined by the given parameters using the given face. ****************************************************************************/ static void x_clear_region (Lisp_Object locale, struct device* d, struct frame* f, face_index findex, int x, int y, int width, int height, Lisp_Object fcolor, Lisp_Object bcolor, Lisp_Object background_pixmap) { Display *dpy; Window x_win; GC gc = NULL; dpy = DEVICE_X_DISPLAY (d); x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); if (!UNBOUNDP (background_pixmap)) { gc = x_get_gc (d, Qnil, fcolor, bcolor, background_pixmap, Qnil); } if (gc) XFillRectangle (dpy, x_win, gc, x, y, width, height); else XClearArea (dpy, x_win, x, y, width, height, False); } /***************************************************************************** x_output_eol_cursor Draw a cursor at the end of a line. The end-of-line cursor is narrower than the normal cursor. ****************************************************************************/ static void x_output_eol_cursor (struct window *w, struct display_line *dl, int xpos, face_index findex) { struct frame *f = XFRAME (w->frame); struct device *d = XDEVICE (f->device); Lisp_Object window; Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); GC gc; face_index elt = get_builtin_face_cache_index (w, Vtext_cursor_face); struct face_cachel *cursor_cachel = WINDOW_FACE_CACHEL (w, elt); int focus = EQ (w->frame, DEVICE_FRAME_WITH_FOCUS_REAL (d)); Lisp_Object bar_cursor_value = symbol_value_in_buffer (Qbar_cursor, WINDOW_BUFFER (w)); int x = xpos; int y = DISPLAY_LINE_YPOS (dl); int width = EOL_CURSOR_WIDTH; int height = DISPLAY_LINE_HEIGHT (dl); int cursor_height, cursor_y; int defheight, defascent; XSETWINDOW (window, w); redisplay_clear_region (window, findex, x, y, width, height); if (NILP (w->text_cursor_visible_p)) return; gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, Qnil); default_face_font_info (window, &defascent, 0, &defheight, 0, 0); /* make sure the cursor is entirely contained between y and y+height */ cursor_height = min (defheight, height); cursor_y = max (y, min (y + height - cursor_height, dl->ypos - defascent)); if (focus) { #ifdef HAVE_XIM XIM_SetSpotLocation (f, x - 2 , cursor_y + cursor_height - 2); #endif /* HAVE_XIM */ if (NILP (bar_cursor_value)) { XFillRectangle (dpy, x_win, gc, x, cursor_y, width, cursor_height); } else { int bar_width = EQ (bar_cursor_value, Qt) ? 1 : 2; gc = x_get_gc (d, Qnil, cursor_cachel->background, Qnil, Qnil, make_int (bar_width)); XDrawLine (dpy, x_win, gc, x + bar_width - 1, cursor_y, x + bar_width - 1, cursor_y + cursor_height - 1); } } else if (NILP (bar_cursor_value)) { XDrawRectangle (dpy, x_win, gc, x, cursor_y, width - 1, cursor_height - 1); } } static void x_clear_frame_window (Lisp_Object window) { struct window *w = XWINDOW (window); if (!NILP (w->vchild)) { x_clear_frame_windows (w->vchild); return; } if (!NILP (w->hchild)) { x_clear_frame_windows (w->hchild); return; } redisplay_clear_to_window_end (w, WINDOW_TEXT_TOP (w), WINDOW_TEXT_BOTTOM (w)); } static void x_clear_frame_windows (Lisp_Object window) { for (; !NILP (window); window = XWINDOW (window)->next) x_clear_frame_window (window); } static void x_clear_frame (struct frame *f) { struct device *d = XDEVICE (f->device); Display *dpy = DEVICE_X_DISPLAY (d); Window x_win = XtWindow (FRAME_X_TEXT_WIDGET (f)); int x, y, width, height; Lisp_Object frame; x = FRAME_LEFT_BORDER_START (f); width = (FRAME_PIXWIDTH (f) - FRAME_REAL_LEFT_TOOLBAR_WIDTH (f) - FRAME_REAL_RIGHT_TOOLBAR_WIDTH (f) - 2 * FRAME_REAL_LEFT_TOOLBAR_BORDER_WIDTH (f) - 2 * FRAME_REAL_RIGHT_TOOLBAR_BORDER_WIDTH (f)); /* #### This adjustment by 1 should be being done in the macros. There is some small differences between when the menubar is on and off that we still need to deal with. */ y = FRAME_TOP_BORDER_START (f) - 1; height = (FRAME_PIXHEIGHT (f) - FRAME_REAL_TOP_TOOLBAR_HEIGHT (f) - FRAME_REAL_BOTTOM_TOOLBAR_HEIGHT (f) - 2 * FRAME_REAL_TOP_TOOLBAR_BORDER_WIDTH (f) - 2 * FRAME_REAL_BOTTOM_TOOLBAR_BORDER_WIDTH (f)) + 1; XClearArea (dpy, x_win, x, y, width, height, False); XSETFRAME (frame, f); if (!UNBOUNDP (FACE_BACKGROUND_PIXMAP (Vdefault_face, frame)) || !UNBOUNDP (FACE_BACKGROUND_PIXMAP (Vleft_margin_face, frame)) || !UNBOUNDP (FACE_BACKGROUND_PIXMAP (Vright_margin_face, frame))) { x_clear_frame_windows (f->root_window); } XFlush (DEVICE_X_DISPLAY (d)); } /* briefly swap the foreground and background colors. */ static int x_flash (struct device *d) { Display *dpy; Window win; XGCValues gcv; GC gc; XColor tmp_fcolor, tmp_bcolor; Lisp_Object tmp_pixel, frame; struct frame *f = device_selected_frame (d); struct window *w = XWINDOW (FRAME_ROOT_WINDOW (f)); Widget shell = FRAME_X_SHELL_WIDGET (f); int flash_height; XSETFRAME (frame, f); tmp_pixel = FACE_FOREGROUND (Vdefault_face, frame); tmp_fcolor = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); tmp_pixel = FACE_BACKGROUND (Vdefault_face, frame); tmp_bcolor = COLOR_INSTANCE_X_COLOR (XCOLOR_INSTANCE (tmp_pixel)); dpy = XtDisplay (shell); win = XtWindow (FRAME_X_TEXT_WIDGET (f)); memset (&gcv, ~0, sizeof (XGCValues)); /* initialize all slots to ~0 */ gcv.foreground = (tmp_fcolor.pixel ^ tmp_bcolor.pixel); gcv.function = GXxor; gcv.graphics_exposures = False; gc = gc_cache_lookup (DEVICE_X_GC_CACHE (XDEVICE (f->device)), &gcv, (GCForeground | GCFunction | GCGraphicsExposures)); default_face_height_and_width (frame, &flash_height, 0); /* If window is tall, flash top and bottom line. */ if (EQ (Vvisible_bell, Qtop_bottom) && w->pixel_height > 3 * flash_height) { XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top, w->pixel_width, flash_height); XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top + w->pixel_height - flash_height, w->pixel_width, flash_height); } else /* If it is short, flash it all. */ XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top, w->pixel_width, w->pixel_height); XSync (dpy, False); #ifdef HAVE_SELECT { int usecs = 100000; struct timeval tv; tv.tv_sec = usecs / 1000000L; tv.tv_usec = usecs % 1000000L; /* I'm sure someone is going to complain about this... */ select (0, 0, 0, 0, &tv); } #else #ifdef HAVE_POLL poll (0, 0, 100); #else /* !HAVE_POLL */ bite me #endif /* HAVE_POLL */ #endif /* HAVE_SELECT */ /* If window is tall, flash top and bottom line. */ if (EQ (Vvisible_bell, Qtop_bottom) && w->pixel_height > 3 * flash_height) { XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top, w->pixel_width, flash_height); XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top + w->pixel_height - flash_height, w->pixel_width, flash_height); } else /* If it is short, flash it all. */ XFillRectangle (dpy, win, gc, w->pixel_left, w->pixel_top, w->pixel_width, w->pixel_height); XSync (dpy, False); return 1; } /* Make audible bell. */ static void x_ring_bell (struct device *d, int volume, int pitch, int duration) { Display *display = DEVICE_X_DISPLAY (d); if (volume < 0) volume = 0; else if (volume > 100) volume = 100; if (pitch < 0 && duration < 0) { XBell (display, (volume * 2) - 100); XFlush (display); } else { XKeyboardState state; XKeyboardControl ctl; XSync (display, 0); /* #### grab server? */ XGetKeyboardControl (display, &state); ctl.bell_pitch = (pitch >= 0 ? pitch : (int) state.bell_pitch); ctl.bell_duration = (duration >= 0 ? duration : (int) state.bell_duration); XChangeKeyboardControl (display, KBBellPitch|KBBellDuration, &ctl); XBell (display, (volume * 2) - 100); ctl.bell_pitch = state.bell_pitch; ctl.bell_duration = state.bell_duration; XChangeKeyboardControl (display, KBBellPitch|KBBellDuration, &ctl); /* #### ungrab server? */ XSync (display, 0); } } /************************************************************************/ /* initialization */ /************************************************************************/ void console_type_create_redisplay_x (void) { /* redisplay methods */ CONSOLE_HAS_METHOD (x, text_width); CONSOLE_HAS_METHOD (x, output_display_block); CONSOLE_HAS_METHOD (x, divider_height); CONSOLE_HAS_METHOD (x, eol_cursor_width); CONSOLE_HAS_METHOD (x, output_vertical_divider); CONSOLE_HAS_METHOD (x, clear_region); CONSOLE_HAS_METHOD (x, clear_frame); CONSOLE_HAS_METHOD (x, window_output_begin); CONSOLE_HAS_METHOD (x, window_output_end); CONSOLE_HAS_METHOD (x, flash); CONSOLE_HAS_METHOD (x, ring_bell); CONSOLE_HAS_METHOD (x, bevel_area); CONSOLE_HAS_METHOD (x, output_string); CONSOLE_HAS_METHOD (x, output_pixmap); }