1 /* mswindows output and frame manipulation routines.
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1994 Lucid, Inc.
4 Copyright (C) 1995 Sun Microsystems, Inc.
6 This file is part of XEmacs.
8 XEmacs is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with XEmacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* Synched up with: Not in FSF. */
28 Lots of work done by Ben Wing for Mule
30 Partially rewritten for mswindows by Jonathan Harris, November 1997
36 #include "console-msw.h"
37 #include "objects-msw.h"
44 #include "glyphs-msw.h"
46 #include "redisplay.h"
52 #include "character.h"
55 #define MSWINDOWS_EOL_CURSOR_WIDTH 5
58 * Random forward declarations
60 static void mswindows_update_dc (HDC hdc, Lisp_Object fg, Lisp_Object bg,
62 static void mswindows_set_dc_font (HDC hdc, Lisp_Object font,
63 int under, int strike);
64 static void mswindows_output_vertical_divider (struct window *w, int clear);
65 static void mswindows_redraw_exposed_windows (Lisp_Object window, int x,
66 int y, int width, int height);
67 static void mswindows_output_dibitmap (struct frame *f,
68 Lisp_Image_Instance *p,
69 struct display_box* db,
70 struct display_glyph_area* dga);
72 typedef struct textual_run
80 /* Separate out the text in DYN into a series of textual runs of a
81 particular charset. Also convert the characters as necessary into
82 the format needed by XDrawImageString(), XDrawImageString16(), et
83 al. (This means converting to one or two byte format, possibly
84 tweaking the high bits, and possibly running a CCL program.) You
85 must pre-allocate the space used and pass it in. (This is done so
86 you can alloca() the space.) You need to allocate (2 * len) bytes
87 of TEXT_STORAGE and (len * sizeof (textual_run)) bytes of
88 RUN_STORAGE, where LEN is the length of the dynarr.
90 Returns the number of runs actually used. */
93 separate_textual_runs (unsigned char *text_storage,
94 textual_run *run_storage,
95 const Emchar *str, Charcount len)
97 Lisp_Object prev_charset = Qunbound; /* not Qnil because that is a
98 possible valid charset when
99 MULE is not defined */
103 struct ccl_program char_converter;
104 int need_ccl_conversion = 0;
107 for (i = 0; i < len; i++)
115 BREAKUP_CHAR (ch, charset, byte1, byte2);
116 dimension = XCHARSET_DIMENSION (charset);
117 graphic = XCHARSET_GRAPHIC (charset);
119 if (!EQ (charset, prev_charset))
121 run_storage[runs_so_far].ptr = text_storage;
122 run_storage[runs_so_far].charset = charset;
123 run_storage[runs_so_far].dimension = dimension;
127 run_storage[runs_so_far - 1].len =
128 text_storage - run_storage[runs_so_far - 1].ptr;
129 if (run_storage[runs_so_far - 1].dimension == 2)
130 run_storage[runs_so_far - 1].len >>= 1;
133 prev_charset = charset;
136 Lisp_Object ccl_prog = XCHARSET_CCL_PROGRAM (charset);
137 need_ccl_conversion = !NILP (ccl_prog);
138 if (need_ccl_conversion)
139 setup_ccl_program (&char_converter, ccl_prog);
149 else if (graphic == 1)
155 if (need_ccl_conversion)
157 char_converter.reg[0] = XCHARSET_ID (charset);
158 char_converter.reg[1] = byte1;
159 char_converter.reg[2] = byte2;
160 char_converter.ic = 0; /* start at beginning each time */
161 ccl_driver (&char_converter, 0, 0, 0, 0, CCL_MODE_ENCODING);
162 byte1 = char_converter.reg[1];
163 byte2 = char_converter.reg[2];
166 *text_storage++ = (unsigned char) byte1;
168 *text_storage++ = (unsigned char) byte2;
173 run_storage[runs_so_far - 1].len =
174 text_storage - run_storage[runs_so_far - 1].ptr;
175 if (run_storage[runs_so_far - 1].dimension == 2)
176 run_storage[runs_so_far - 1].len >>= 1;
184 mswindows_text_width_single_run (HDC hdc, struct face_cachel *cachel,
187 Lisp_Object font_inst = FACE_CACHEL_FONT (cachel, run->charset);
188 Lisp_Font_Instance *fi = XFONT_INSTANCE (font_inst);
191 if (!fi->proportional_p || !hdc)
192 return (fi->width * run->len);
195 assert(run->dimension == 1); /* #### FIXME! */
196 mswindows_set_dc_font (hdc, font_inst,
197 cachel->underline, cachel->strikethru);
198 GetTextExtentPoint32 (hdc, run->ptr, run->len, &size);
204 * Given F, retrieve device context. F can be a display frame, or
205 * a print job. For a print job, page is also started when printer's
206 * device context is first time requested.
209 get_frame_dc (struct frame *f, int start_page_p)
211 if (FRAME_MSWINDOWS_P (f))
212 return FRAME_MSWINDOWS_DC (f);
215 if (start_page_p && !FRAME_MSPRINTER_PAGE_STARTED (f))
216 msprinter_start_page (f);
217 return DEVICE_MSPRINTER_HDC (XDEVICE (FRAME_DEVICE (f)));
222 * Given F, retrieve compatible device context. F can be a display
223 * frame, or a print job.
226 get_frame_compdc (struct frame *f)
228 struct device *d = XDEVICE (FRAME_DEVICE (f));
229 if (DEVICE_MSWINDOWS_P (d))
230 return DEVICE_MSWINDOWS_HCDC (d);
232 return DEVICE_MSPRINTER_HCDC (d);
235 /*****************************************************************************
238 Given a number of parameters munge the DC so it has those properties.
239 ****************************************************************************/
241 mswindows_update_dc (HDC hdc, Lisp_Object fg, Lisp_Object bg,
246 SetTextColor (hdc, COLOR_INSTANCE_MSWINDOWS_COLOR
247 (XCOLOR_INSTANCE (fg)));
252 SetBkMode (hdc, OPAQUE);
253 SetBkColor (hdc, COLOR_INSTANCE_MSWINDOWS_COLOR (XCOLOR_INSTANCE (bg)));
257 SetBkMode (hdc, TRANSPARENT);
261 static void mswindows_set_dc_font (HDC hdc, Lisp_Object font,
262 int under, int strike)
264 SelectObject(hdc, mswindows_get_hfont (XFONT_INSTANCE (font),
268 /*****************************************************************************
269 mswindows_output_hline
271 Output a horizontal line in the foreground of its face.
272 ****************************************************************************/
274 mswindows_output_hline (struct window *w, struct display_line *dl, struct rune *rb)
275 { /* XXX Implement me */
279 /*****************************************************************************
280 mswindows_output_blank
282 Output a blank by clearing the area it covers in the background color
284 ****************************************************************************/
286 mswindows_output_blank (struct window *w, struct display_line *dl,
287 struct rune *rb, int start_pixpos)
289 struct frame *f = XFRAME (w->frame);
290 HDC hdc = get_frame_dc (f, 1);
291 RECT rect = { rb->xpos, DISPLAY_LINE_YPOS (dl),
293 DISPLAY_LINE_YEND (dl) };
294 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, rb->findex);
296 Lisp_Object bg_pmap = WINDOW_FACE_CACHEL_BACKGROUND_PIXMAP (w, rb->findex);
298 /* Unmap all subwindows in the area we are going to blank. */
299 redisplay_unmap_subwindows_maybe (f, rb->xpos, DISPLAY_LINE_YPOS (dl),
300 rb->width, DISPLAY_LINE_HEIGHT (dl));
302 if (!IMAGE_INSTANCEP (bg_pmap)
303 || !IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (bg_pmap)))
308 struct display_box db;
309 struct display_glyph_area dga;
310 redisplay_calculate_display_boxes (dl, rb->xpos,
311 /*rb->object.dglyph.xoffset*/ 0,
312 start_pixpos, rb->width,
314 /* blank the background in the appropriate color */
315 mswindows_update_dc (hdc, cachel->foreground,
316 cachel->background, Qnil);
317 redisplay_output_pixmap (w, bg_pmap, &db, &dga, rb->findex,
322 mswindows_update_dc (hdc, Qnil, cachel->background, Qnil);
323 ExtTextOut (hdc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
328 /*****************************************************************************
329 mswindows_output_cursor
331 Draw a normal or end-of-line cursor. The end-of-line cursor is
332 narrower than the normal cursor.
333 ****************************************************************************/
335 mswindows_output_cursor (struct window *w, struct display_line *dl, int xpos,
336 int width, face_index findex, Emchar ch, int image_p)
338 struct frame *f = XFRAME (w->frame);
339 struct device *d = XDEVICE (f->device);
340 struct face_cachel *cachel=0;
341 Lisp_Object font = Qnil;
342 int focus = EQ (w->frame, DEVICE_FRAME_WITH_FOCUS_REAL (d));
343 HDC hdc = get_frame_dc (f, 1);
344 unsigned int local_face_index=0;
348 DISPLAY_LINE_YPOS (dl),
350 DISPLAY_LINE_YEND (dl) };
351 Lisp_Object bar = symbol_value_in_buffer (Qbar_cursor,
353 int bar_p = image_p || !NILP (bar);
354 int cursor_p = !NILP (w->text_cursor_visible_p);
355 int real_char_p = ch != 0;
357 /* Unmap all subwindows in the area we are going to blank. */
358 redisplay_unmap_subwindows_maybe (f, xpos, DISPLAY_LINE_YPOS (dl),
359 width, DISPLAY_LINE_HEIGHT (dl));
363 /* Use the font from the underlying character */
364 cachel = WINDOW_FACE_CACHEL (w, findex);
366 /* #### MULE: Need to know the charset! */
367 font = FACE_CACHEL_FONT (cachel, Vcharset_ascii);
370 if ((focus || bar_p) && real_char_p)
372 p_char = (char*) &ch;
378 struct face_cachel *color_cachel;
380 /* Use cursor fg/bg for block cursor, or character fg/bg for the bar
381 or when we need to erase the cursor. Output nothing at eol if bar
383 local_face_index = get_builtin_face_cache_index (w, Vtext_cursor_face);
384 color_cachel = WINDOW_FACE_CACHEL (w, ((!cursor_p || bar_p) ?
385 findex : local_face_index));
386 mswindows_update_dc (hdc, color_cachel->foreground,
387 color_cachel->background, Qnil);
389 mswindows_set_dc_font (hdc, font,
390 cachel->underline, cachel->strikethru);
392 ExtTextOut (hdc, xpos, dl->ypos, ETO_OPAQUE|ETO_CLIPPED, &rect, p_char, n_char, NULL);
400 rect.right = rect.left + (EQ (bar, Qt) ? 1 : min (2, width));
401 local_face_index = get_builtin_face_cache_index (w, Vtext_cursor_face);
402 cachel = WINDOW_FACE_CACHEL (w, local_face_index);
403 mswindows_update_dc (hdc, Qnil, cachel->background, Qnil);
404 ExtTextOut (hdc, xpos, dl->ypos, ETO_OPAQUE, &rect, NULL, 0, NULL);
408 /* Now have real character drawn in its own color. We deflate
409 the rectangle so character cell will be bounded by the
410 previously drawn cursor shape */
411 InflateRect (&rect, -1, -1);
415 p_char = (char*) &ch;
419 local_face_index = get_builtin_face_cache_index (w, Vdefault_face);
420 cachel = WINDOW_FACE_CACHEL (w, (real_char_p ? findex : local_face_index));
421 mswindows_update_dc (hdc,
422 cachel->foreground, cachel->background, Qnil);
423 ExtTextOut (hdc, xpos, dl->ypos, ETO_OPAQUE | ETO_CLIPPED,
424 &rect, p_char, n_char, NULL);
429 /*****************************************************************************
430 mswindows_output_string
432 Given a string and a starting position, output that string in the
434 Correctly handles multiple charsets in the string.
436 The meaning of the parameters is something like this:
438 W Window that the text is to be displayed in.
439 DL Display line that this text is on. The values in the
440 structure are used to determine the vertical position and
441 clipping range of the text.
442 BUF Dynamic array of Emchars specifying what is actually to be
444 XPOS X position in pixels where the text should start being drawn.
445 XOFFSET Number of pixels to be chopped off the left side of the
446 text. The effect is as if the text were shifted to the
447 left this many pixels and clipped at XPOS.
448 CLIP_START Clip everything left of this X position.
449 WIDTH Clip everything right of XPOS + WIDTH.
450 FINDEX Index for the face cache element describing how to display
452 ****************************************************************************/
454 mswindows_output_string (struct window *w, struct display_line *dl,
455 Emchar_dynarr *buf, int xpos, int xoffset, int clip_start,
456 int width, face_index findex,
457 int cursor, int cursor_start, int cursor_width,
460 struct frame *f = XFRAME (w->frame);
461 /* struct device *d = XDEVICE (f->device);*/
463 HDC hdc = get_frame_dc (f, 1);
466 int len = Dynarr_length (buf);
467 unsigned char *text_storage = (unsigned char *) alloca (2 * len);
468 textual_run *runs = alloca_array (textual_run, len);
472 struct face_cachel *cachel = WINDOW_FACE_CACHEL (w, findex);
474 XSETWINDOW (window, w);
476 #if 0 /* #### FIXME? */
477 /* We can't work out the width before we've set the font in the DC */
479 width = mswindows_text_width (cachel, Dynarr_atp (buf, 0), Dynarr_length (buf));
484 /* Regularize the variables passed in. */
485 if (clip_start < xpos)
487 clip_end = xpos + width;
488 if (clip_start >= clip_end)
489 /* It's all clipped out. */
494 /* sort out the destination rectangle */
495 height = DISPLAY_LINE_HEIGHT (dl);
496 rect.left = clip_start;
497 rect.top = DISPLAY_LINE_YPOS (dl);
498 rect.right = clip_end;
499 rect.bottom = rect.top + height;
501 /* make sure the area we are about to display is subwindow free. */
502 redisplay_unmap_subwindows_maybe (f, clip_start, DISPLAY_LINE_YPOS (dl),
503 clip_end - clip_start, DISPLAY_LINE_HEIGHT (dl));
505 /* output the background pixmap if there is one */
506 bg_pmap = cachel->background_pixmap;
507 if (!IMAGE_INSTANCEP (bg_pmap)
508 || !IMAGE_INSTANCE_PIXMAP_TYPE_P (XIMAGE_INSTANCE (bg_pmap)))
513 struct display_box db;
514 struct display_glyph_area dga;
515 redisplay_calculate_display_boxes (dl, xpos + xoffset, 0,
516 clip_start, width, &db, &dga);
517 /* blank the background in the appropriate color */
518 mswindows_update_dc (hdc,
519 cachel->foreground, cachel->background, Qnil);
520 redisplay_output_pixmap (w, bg_pmap, &db, &dga, findex,
522 /* output pixmap calls this so we have to recall to get correct
524 cachel = WINDOW_FACE_CACHEL (w, findex);
527 nruns = separate_textual_runs (text_storage, runs, Dynarr_atp (buf, 0),
528 Dynarr_length (buf));
530 for (i = 0; i < nruns; i++)
532 Lisp_Object font = FACE_CACHEL_FONT (cachel, runs[i].charset);
533 Lisp_Font_Instance *fi = XFONT_INSTANCE (font);
536 if (EQ (font, Vthe_null_font_instance))
539 mswindows_update_dc (hdc, cachel->foreground,
540 NILP(bg_pmap) ? cachel->background : Qnil, Qnil);
541 mswindows_set_dc_font (hdc, font, cachel->underline, cachel->strikethru);
543 this_width = mswindows_text_width_single_run (hdc, cachel, runs + i);
545 /* cope with fonts taller than lines */
546 if ((int) fi->height < (int) (height + dl->clip + dl->top_clip))
548 int clear_start = max (xpos, clip_start);
549 int clear_end = min (xpos + this_width, clip_end);
552 redisplay_clear_region (window, findex, clear_start,
553 DISPLAY_LINE_YPOS (dl),
554 clear_end - clear_start,
556 /* output pixmap calls this so we have to recall to get correct
558 cachel = WINDOW_FACE_CACHEL (w, findex);
562 assert (runs[i].dimension == 1); /* #### FIXME: Broken when Mule? */
563 ExtTextOut (hdc, xpos, dl->ypos,
564 NILP(bg_pmap) ? ETO_CLIPPED | ETO_OPAQUE : ETO_CLIPPED,
565 &rect, (char *) runs[i].ptr, runs[i].len, NULL);
572 mswindows_output_dibitmap (struct frame *f, Lisp_Image_Instance *p,
573 struct display_box* db,
574 struct display_glyph_area* dga)
576 HDC hdc = get_frame_dc (f, 1);
577 HDC hcompdc = get_frame_compdc (f);
579 COLORREF bgcolor = GetBkColor (hdc);
580 const int real_x = IMAGE_INSTANCE_MSWINDOWS_BITMAP_REAL_WIDTH (p);
581 const int real_y = IMAGE_INSTANCE_MSWINDOWS_BITMAP_REAL_HEIGHT (p);
582 const int surface_x = IMAGE_INSTANCE_PIXMAP_WIDTH (p);
583 const int surface_y = IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
585 /* first blit the mask */
586 if (IMAGE_INSTANCE_MSWINDOWS_MASK (p))
589 col.rgbBlue = GetBValue (bgcolor);
590 col.rgbRed = GetRValue (bgcolor);
591 col.rgbGreen = GetGValue (bgcolor);
594 old = SelectObject (hcompdc, IMAGE_INSTANCE_MSWINDOWS_MASK (p));
596 SetDIBColorTable (hcompdc, 1, 1, &col);
600 dga->width, dga->height,
602 MulDiv (dga->xoffset, real_x, surface_x),
603 MulDiv (dga->yoffset, real_y, surface_y),
604 MulDiv (dga->width, real_x, surface_x),
605 MulDiv (dga->height, real_y, surface_y),
608 SelectObject (hcompdc, old);
611 /* Now blit the bitmap itself, or one of its slices. */
612 old = SelectObject (hcompdc,
613 IMAGE_INSTANCE_MSWINDOWS_BITMAP_SLICE
614 (p, IMAGE_INSTANCE_PIXMAP_SLICE (p)));
618 dga->width, dga->height,
620 MulDiv (dga->xoffset, real_x, surface_x),
621 MulDiv (dga->yoffset, real_y, surface_y),
622 MulDiv (dga->width, real_x, surface_x),
623 MulDiv (dga->height, real_y, surface_y),
624 IMAGE_INSTANCE_MSWINDOWS_MASK (p) ? SRCINVERT : SRCCOPY);
626 SelectObject (hcompdc, old);
629 /* X gc's have this nice property that setting the bg pixmap will
630 * output it offset relative to the window. Windows doesn't have this
631 * feature so we have to emulate this by outputting multiple pixmaps.
632 * This is only used for background pixmaps. Normal pixmaps are
633 * outputted once and are scrollable */
635 mswindows_output_dibitmap_region (struct frame *f,
636 Lisp_Image_Instance *p,
637 struct display_box *db,
638 struct display_glyph_area *dga)
640 struct display_box xdb = { db->xpos, db->ypos, db->width, db->height };
641 struct display_glyph_area xdga
642 = { 0, 0, IMAGE_INSTANCE_PIXMAP_WIDTH (p),
643 IMAGE_INSTANCE_PIXMAP_HEIGHT (p) };
644 int pxoffset = 0, pyoffset = 0;
648 xdga.width = dga->width;
649 xdga.height = dga->height;
651 else if (!redisplay_normalize_glyph_area (&xdb, &xdga))
654 /* when doing a bg pixmap do a partial pixmap first so that we
655 blt whole pixmaps thereafter */
656 xdga.height = min (xdga.height, IMAGE_INSTANCE_PIXMAP_HEIGHT (p) -
657 db->ypos % IMAGE_INSTANCE_PIXMAP_HEIGHT (p));
659 while (xdga.height > 0)
661 xdga.width = min (min (db->width, IMAGE_INSTANCE_PIXMAP_WIDTH (p)),
662 IMAGE_INSTANCE_PIXMAP_WIDTH (p) -
663 db->xpos % IMAGE_INSTANCE_PIXMAP_WIDTH (p));
665 while (xdga.width > 0)
667 xdb.xpos = db->xpos + pxoffset;
668 xdb.ypos = db->ypos + pyoffset;
669 /* do we need to offset the pixmap vertically? this is necessary
670 for background pixmaps. */
671 xdga.yoffset = xdb.ypos % IMAGE_INSTANCE_PIXMAP_HEIGHT (p);
672 xdga.xoffset = xdb.xpos % IMAGE_INSTANCE_PIXMAP_WIDTH (p);
673 /* the width is handled by mswindows_output_pixmap_region */
674 mswindows_output_dibitmap (f, p, &xdb, &xdga);
675 pxoffset += xdga.width;
676 xdga.width = min ((db->width - pxoffset),
677 IMAGE_INSTANCE_PIXMAP_WIDTH (p));
679 pyoffset += xdga.height;
680 xdga.height = min ((db->height - pyoffset),
681 IMAGE_INSTANCE_PIXMAP_HEIGHT (p));
685 /* Output a pixmap at the desired location.
686 DB normalized display_box.
687 DGA normalized display_glyph_area. */
689 mswindows_output_pixmap (struct window *w, Lisp_Object image_instance,
690 struct display_box *db, struct display_glyph_area *dga,
691 face_index findex, int cursor_start, int cursor_width,
692 int cursor_height, int bg_pixmap)
694 struct frame *f = XFRAME (w->frame);
695 HDC hdc = get_frame_dc (f, 1);
697 Lisp_Image_Instance *p = XIMAGE_INSTANCE (image_instance);
700 XSETWINDOW (window, w);
702 /* Output the pixmap. Have to do this as many times as is required
703 to fill the given area */
704 mswindows_update_dc (hdc,
705 WINDOW_FACE_CACHEL_FOREGROUND (w, findex),
706 WINDOW_FACE_CACHEL_BACKGROUND (w, findex), Qnil);
709 mswindows_output_dibitmap_region (f, p, db, dga);
711 mswindows_output_dibitmap (f, p, db, dga);
714 #ifdef HAVE_SCROLLBARS
716 * This function paints window's deadbox, a rectangle between window
717 * borders and two short edges of both scrollbars.
719 * Function checks whether deadbox intersects with the rectangle pointed
720 * to by PRC, and paints only the intersection
723 mswindows_redisplay_deadbox_maybe (struct window *w, const RECT* prc)
725 int sbh = window_scrollbar_height (w);
726 int sbw = window_scrollbar_width (w);
727 RECT rect_dead, rect_paint;
728 if (sbh == 0 || sbw == 0)
731 if (!NILP (w->scrollbar_on_left_p))
732 rect_dead.left = WINDOW_LEFT (w);
734 rect_dead.left = WINDOW_TEXT_RIGHT (w);
735 rect_dead.right = rect_dead.left + sbw;
737 if (!NILP (w->scrollbar_on_top_p))
738 rect_dead.top = WINDOW_TOP (w);
740 rect_dead.top = WINDOW_TEXT_BOTTOM (w);
741 rect_dead.bottom = rect_dead.top + sbh;
743 if (IntersectRect (&rect_paint, &rect_dead, prc))
745 struct frame *f = XFRAME (WINDOW_FRAME (w));
746 FillRect (get_frame_dc (f, 1), &rect_paint,
747 (HBRUSH) (COLOR_BTNFACE+1));
751 #endif /* HAVE_SCROLLBARS */
753 /*****************************************************************************
754 mswindows_redraw_exposed_window
756 Given a bounding box for an area that needs to be redrawn, determine
757 what parts of what lines are contained within and re-output their
759 Copied from redisplay-x.c
760 ****************************************************************************/
762 mswindows_redraw_exposed_window (struct window *w, int x, int y, int width,
765 struct frame *f = XFRAME (w->frame);
767 int orig_windows_structure_changed;
768 RECT rect_window = { WINDOW_LEFT (w), WINDOW_TOP (w),
769 WINDOW_RIGHT (w), WINDOW_BOTTOM (w) };
770 RECT rect_expose = { x, y, x + width, y + height };
773 display_line_dynarr *cdla = window_display_lines (w, CURRENT_DISP);
775 if (!NILP (w->vchild))
777 mswindows_redraw_exposed_windows (w->vchild, x, y, width, height);
780 else if (!NILP (w->hchild))
782 mswindows_redraw_exposed_windows (w->hchild, x, y, width, height);
786 /* If the window doesn't intersect the exposed region, we're done here. */
787 if (!IntersectRect (&rect_draw, &rect_window, &rect_expose))
790 /* We do this to make sure that the 3D modelines get redrawn if
791 they are in the exposed region. */
792 orig_windows_structure_changed = f->windows_structure_changed;
793 f->windows_structure_changed = 1;
795 if (window_needs_vertical_divider (w))
797 mswindows_output_vertical_divider (w, 0);
800 for (line = 0; line < Dynarr_length (cdla); line++)
802 struct display_line *cdl = Dynarr_atp (cdla, line);
804 if (DISPLAY_LINE_YPOS (cdl) + DISPLAY_LINE_HEIGHT (cdl)
807 if (DISPLAY_LINE_YPOS (cdl) > rect_draw.bottom)
816 output_display_line (w, 0, cdla, line,
817 rect_draw.left, rect_draw.right);
822 f->windows_structure_changed = orig_windows_structure_changed;
824 /* If there have never been any face cache_elements created, then this
825 expose event doesn't actually have anything to do. */
826 if (Dynarr_largest (w->face_cachels))
827 redisplay_clear_bottom_of_window (w, cdla, rect_draw.top, rect_draw.bottom);
829 #ifdef HAVE_SCROLLBARS
830 mswindows_redisplay_deadbox_maybe (w, &rect_expose);
834 /*****************************************************************************
835 mswindows_redraw_exposed_windows
837 For each window beneath the given window in the window hierarchy,
838 ensure that it is redrawn if necessary after an Expose event.
839 ****************************************************************************/
841 mswindows_redraw_exposed_windows (Lisp_Object window, int x, int y, int width,
844 for (; !NILP (window); window = XWINDOW (window)->next)
845 mswindows_redraw_exposed_window (XWINDOW (window), x, y, width, height);
848 /*****************************************************************************
849 mswindows_redraw_exposed_area
851 For each window on the given frame, ensure that any area in the
852 Exposed area is redrawn.
853 ****************************************************************************/
855 mswindows_redraw_exposed_area (struct frame *f, int x, int y, int width, int height)
857 /* If any window on the frame has had its face cache reset then the
858 redisplay structures are effectively invalid. If we attempt to
859 use them we'll blow up. We mark the frame as changed to ensure
860 that redisplay will do a full update. This probably isn't
861 necessary but it can't hurt. */
863 /* #### We would rather put these off as well but there is currently
864 no combination of flags which will force an unchanged toolbar to
866 MAYBE_FRAMEMETH (f, redraw_exposed_toolbars, (f, x, y, width, height));
868 redraw_exposed_gutters (f, x, y, width, height);
870 if (!f->window_face_cache_reset)
872 mswindows_redraw_exposed_windows (f->root_window, x, y, width, height);
876 MARK_FRAME_CHANGED (f);
880 /*****************************************************************************
883 Draw a 3d border around the specified area on window W.
884 ****************************************************************************/
886 mswindows_bevel_area (struct window *w, face_index findex, int x, int y,
887 int width, int height, int thickness,
888 int edges, enum edge_style style)
890 struct frame *f = XFRAME (w->frame);
894 if (style == EDGE_ETCHED_IN)
896 else if (style == EDGE_ETCHED_OUT)
898 else if (style == EDGE_BEVEL_IN)
901 edge = BDR_SUNKENINNER;
905 else /* EDGE_BEVEL_OUT */
908 edge = BDR_RAISEDINNER;
913 if (edges & EDGE_TOP)
915 if (edges & EDGE_LEFT)
917 if (edges & EDGE_BOTTOM)
919 if (edges & EDGE_RIGHT)
923 RECT rect = { x, y, x + width, y + height };
924 Lisp_Object color = WINDOW_FACE_CACHEL_BACKGROUND (w, findex);
925 HDC hdc = get_frame_dc (f, 1);
927 mswindows_update_dc (hdc, Qnil, color, Qnil);
928 DrawEdge (hdc, &rect, edge, border);
933 /*****************************************************************************
935 *****************************************************************************/
937 /*****************************************************************************
938 mswindows_divider_height
940 Return the height of the horizontal divider.
941 ****************************************************************************/
943 mswindows_divider_height (void)
945 return 1; /* XXX Copied from redisplay-X.c. What is this? */
948 /*****************************************************************************
949 mswindows_eol_cursor_width
951 Return the width of the end-of-line cursor.
952 ****************************************************************************/
954 mswindows_eol_cursor_width (void)
956 return MSWINDOWS_EOL_CURSOR_WIDTH;
959 /*****************************************************************************
960 mswindows_output_begin
962 Perform any necessary initialization prior to an update.
963 ****************************************************************************/
965 mswindows_output_begin (struct device *d)
969 /*****************************************************************************
972 Perform any necessary flushing of queues when an update has completed.
973 ****************************************************************************/
975 mswindows_output_end (struct device *d)
981 mswindows_flash (struct device *d)
983 struct frame *f = device_selected_frame (d);
984 HDC hdc = get_frame_dc (f, 1);
987 GetClientRect (FRAME_MSWINDOWS_HANDLE (f), &rc);
988 InvertRect (hdc, &rc);
991 InvertRect (hdc, &rc);
997 mswindows_ring_bell (struct device *d, int volume, int pitch, int duration)
999 /* Beep does not work at all, anyways! -kkm */
1000 MessageBeep (MB_OK);
1003 /*****************************************************************************
1004 mswindows_output_display_block
1006 Given a display line, a block number for that start line, output all
1007 runes between start and end in the specified display block.
1008 Ripped off with minimal thought from the corresponding X routine.
1009 ****************************************************************************/
1011 mswindows_output_display_block (struct window *w, struct display_line *dl, int block,
1012 int start, int end, int start_pixpos, int cursor_start,
1013 int cursor_width, int cursor_height)
1015 struct frame *f = XFRAME (w->frame);
1016 Emchar_dynarr *buf = Dynarr_new (Emchar);
1019 struct display_block *db = Dynarr_atp (dl->display_blocks, block);
1020 rune_dynarr *rba = db->runes;
1026 Lisp_Object charset = Qunbound; /* Qnil is a valid charset when
1027 MULE is not defined */
1028 XSETWINDOW (window, w);
1029 rb = Dynarr_atp (rba, start);
1032 /* Nothing to do so don't do anything. */
1035 findex = rb->findex;
1038 if (rb->type == RUNE_CHAR)
1039 charset = CHAR_CHARSET (rb->object.chr.ch);
1042 end = Dynarr_length (rba);
1047 rb = Dynarr_atp (rba, elt);
1049 if (rb->findex == findex && rb->type == RUNE_CHAR
1050 && rb->object.chr.ch != '\n' && rb->cursor_type != CURSOR_ON
1051 && EQ (charset, CHAR_CHARSET (rb->object.chr.ch)))
1053 Dynarr_add (buf, rb->object.chr.ch);
1059 if (Dynarr_length (buf))
1061 mswindows_output_string (w, dl, buf, xpos, 0, start_pixpos, width,
1062 findex, 0, 0, 0, 0);
1069 if (rb->type == RUNE_CHAR)
1071 findex = rb->findex;
1073 charset = CHAR_CHARSET (rb->object.chr.ch);
1075 if (rb->cursor_type == CURSOR_ON)
1077 if (rb->object.chr.ch == '\n')
1079 mswindows_output_cursor (w, dl, xpos, cursor_width,
1084 Dynarr_add (buf, rb->object.chr.ch);
1085 mswindows_output_cursor (w, dl, xpos, cursor_width,
1086 findex, rb->object.chr.ch, 0);
1093 else if (rb->object.chr.ch == '\n')
1095 /* Clear in case a cursor was formerly here. */
1096 redisplay_clear_region (window, findex, xpos,
1097 DISPLAY_LINE_YPOS (dl),
1098 rb->width, DISPLAY_LINE_HEIGHT (dl));
1102 else if (rb->type == RUNE_BLANK || rb->type == RUNE_HLINE)
1104 if (rb->type == RUNE_BLANK)
1105 mswindows_output_blank (w, dl, rb, start_pixpos);
1108 /* #### Our flagging of when we need to redraw the
1109 modeline shadows sucks. Since RUNE_HLINE is only used
1110 by the modeline at the moment it is a good bet
1111 that if it gets redrawn then we should also
1112 redraw the shadows. This won't be true forever.
1113 We borrow the shadow_thickness_changed flag for
1115 w->shadow_thickness_changed = 1;
1116 mswindows_output_hline (w, dl, rb);
1119 if (rb->cursor_type == CURSOR_ON)
1120 mswindows_output_cursor (w, dl, xpos, cursor_width, rb->findex, 0, 0);
1125 rb = Dynarr_atp (rba, elt);
1127 findex = rb->findex;
1131 else if (rb->type == RUNE_DGLYPH)
1133 Lisp_Object instance;
1134 struct display_box dbox;
1135 struct display_glyph_area dga;
1137 redisplay_calculate_display_boxes (dl, rb->xpos, rb->object.dglyph.xoffset,
1138 start_pixpos, rb->width,
1141 XSETWINDOW (window, w);
1142 instance = glyph_image_instance (rb->object.dglyph.glyph,
1143 window, ERROR_ME_NOT, 1);
1144 findex = rb->findex;
1146 if (IMAGE_INSTANCEP (instance))
1148 switch (XIMAGE_INSTANCE_TYPE (instance))
1150 case IMAGE_MONO_PIXMAP:
1151 case IMAGE_COLOR_PIXMAP:
1152 redisplay_output_pixmap (w, instance, &dbox, &dga, findex,
1153 cursor_start, cursor_width,
1155 if (rb->cursor_type == CURSOR_ON)
1156 mswindows_output_cursor (w, dl, xpos, cursor_width,
1160 case IMAGE_SUBWINDOW:
1162 redisplay_output_subwindow (w, instance, &dbox, &dga, findex,
1163 cursor_start, cursor_width,
1165 if (rb->cursor_type == CURSOR_ON)
1166 mswindows_output_cursor (w, dl, xpos, cursor_width,
1171 redisplay_output_layout (w, instance, &dbox, &dga, findex,
1172 cursor_start, cursor_width,
1174 if (rb->cursor_type == CURSOR_ON)
1175 mswindows_output_cursor (w, dl, xpos, cursor_width,
1180 /* nothing is as nothing does */
1188 IMAGE_INSTANCE_OPTIMIZE_OUTPUT
1189 (XIMAGE_INSTANCE (instance)) = 0;
1199 if (Dynarr_length (buf))
1200 mswindows_output_string (w, dl, buf, xpos, 0, start_pixpos, width, findex,
1204 && !EQ (Qzero, w->modeline_shadow_thickness)
1206 || f->windows_structure_changed
1207 || w->shadow_thickness_changed))
1208 bevel_modeline (w, dl);
1214 /*****************************************************************************
1215 mswindows_output_vertical_divider
1217 Draw a vertical divider down the right side of the given window.
1218 ****************************************************************************/
1220 mswindows_output_vertical_divider (struct window *w, int clear_unused)
1222 struct frame *f = XFRAME (w->frame);
1223 HDC hdc = get_frame_dc (f, 1);
1225 int spacing = XINT (w->vertical_divider_spacing);
1226 int shadow = XINT (w->vertical_divider_shadow_thickness);
1227 int abs_shadow = abs (shadow);
1228 int line_width = XINT (w->vertical_divider_line_width);
1229 int div_left = WINDOW_RIGHT (w) - window_divider_width (w);
1230 int y1 = WINDOW_TOP (w);
1231 int y2 = WINDOW_BOTTOM (w);
1233 /* Clear left and right spacing areas */
1238 mswindows_update_dc (hdc, Qnil,
1239 WINDOW_FACE_CACHEL_BACKGROUND (w, DEFAULT_INDEX), Qnil);
1240 rect.right = WINDOW_RIGHT (w);
1241 rect.left = rect.right - spacing;
1242 ExtTextOut (hdc, 0, 0, ETO_OPAQUE,
1243 &rect, NULL, 0, NULL);
1244 rect.left = div_left;
1245 rect.right = div_left + spacing;
1246 ExtTextOut (hdc, 0, 0, ETO_OPAQUE,
1247 &rect, NULL, 0, NULL);
1250 /* Clear divider face */
1251 rect.top = y1 + abs_shadow;
1252 rect.bottom = y2 - abs_shadow;
1253 rect.left = div_left + spacing + abs_shadow;
1254 rect.right = rect.left + line_width;
1255 if (rect.left < rect.right)
1258 = get_builtin_face_cache_index (w, Vvertical_divider_face);
1259 mswindows_update_dc (hdc, Qnil,
1260 WINDOW_FACE_CACHEL_BACKGROUND (w, div_face), Qnil);
1261 ExtTextOut (hdc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
1264 /* Draw a shadow around the divider */
1267 /* #### This will be fixed to support arbitrary thickness */
1268 InflateRect (&rect, abs_shadow, abs_shadow);
1269 DrawEdge (hdc, &rect,
1270 shadow > 0 ? EDGE_RAISED : EDGE_SUNKEN, BF_RECT);
1274 /****************************************************************************
1275 mswindows_text_width
1277 Given a string and a face, return the string's length in pixels when
1278 displayed in the font associated with the face.
1279 ****************************************************************************/
1281 mswindows_text_width (struct frame *f, struct face_cachel *cachel,
1282 const Emchar *str, Charcount len)
1284 HDC hdc = get_frame_dc (f, 0);
1285 int width_so_far = 0;
1286 unsigned char *text_storage = (unsigned char *) alloca (2 * len);
1287 textual_run *runs = alloca_array (textual_run, len);
1291 nruns = separate_textual_runs (text_storage, runs, str, len);
1293 for (i = 0; i < nruns; i++)
1294 width_so_far += mswindows_text_width_single_run (hdc,
1297 return width_so_far;
1301 /****************************************************************************
1302 mswindows_clear_region
1304 Clear the area in the box defined by the given parameters using the
1306 ****************************************************************************/
1308 mswindows_clear_region (Lisp_Object locale, struct device* d, struct frame* f,
1309 face_index findex, int x, int y,
1310 int width, int height, Lisp_Object fcolor, Lisp_Object bcolor,
1311 Lisp_Object background_pixmap)
1313 RECT rect = { x, y, x+width, y+height };
1314 HDC hdc = get_frame_dc (f, 1);
1316 if (!NILP (background_pixmap))
1318 struct display_box db = { x, y, width, height };
1319 mswindows_update_dc (hdc,
1320 fcolor, bcolor, background_pixmap);
1321 mswindows_output_dibitmap_region
1322 ( f, XIMAGE_INSTANCE (background_pixmap), &db, 0);
1326 mswindows_update_dc (hdc, Qnil, fcolor, Qnil);
1327 ExtTextOut (hdc, 0, 0, ETO_OPAQUE,
1328 &rect, NULL, 0, NULL);
1331 #ifdef HAVE_SCROLLBARS
1332 if (WINDOWP (locale))
1333 mswindows_redisplay_deadbox_maybe (XWINDOW (locale), &rect);
1337 /* XXX Implement me! */
1339 mswindows_clear_frame (struct frame *f)
1346 /************************************************************************/
1347 /* initialization */
1348 /************************************************************************/
1351 console_type_create_redisplay_mswindows (void)
1353 /* redisplay methods - display*/
1354 CONSOLE_HAS_METHOD (mswindows, text_width);
1355 CONSOLE_HAS_METHOD (mswindows, output_display_block);
1356 CONSOLE_HAS_METHOD (mswindows, divider_height);
1357 CONSOLE_HAS_METHOD (mswindows, eol_cursor_width);
1358 CONSOLE_HAS_METHOD (mswindows, output_vertical_divider);
1359 CONSOLE_HAS_METHOD (mswindows, clear_region);
1360 CONSOLE_HAS_METHOD (mswindows, clear_frame);
1361 CONSOLE_HAS_METHOD (mswindows, output_begin);
1362 CONSOLE_HAS_METHOD (mswindows, output_end);
1363 CONSOLE_HAS_METHOD (mswindows, flash);
1364 CONSOLE_HAS_METHOD (mswindows, ring_bell);
1365 CONSOLE_HAS_METHOD (mswindows, bevel_area);
1366 CONSOLE_HAS_METHOD (mswindows, output_string);
1367 CONSOLE_HAS_METHOD (mswindows, output_pixmap);
1369 /* redisplay methods - printer */
1370 CONSOLE_INHERITS_METHOD (msprinter, mswindows, text_width);
1371 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_display_block);
1372 CONSOLE_INHERITS_METHOD (msprinter, mswindows, divider_height);
1373 CONSOLE_INHERITS_METHOD (msprinter, mswindows, eol_cursor_width);
1374 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_vertical_divider);
1375 CONSOLE_INHERITS_METHOD (msprinter, mswindows, clear_region);
1376 CONSOLE_INHERITS_METHOD (msprinter, mswindows, clear_frame);
1377 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_begin);
1378 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_end);
1379 CONSOLE_INHERITS_METHOD (msprinter, mswindows, bevel_area);
1380 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_string);
1381 CONSOLE_INHERITS_METHOD (msprinter, mswindows, output_pixmap);