1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
21 * Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
22 * file for a list of people on the GTK+ Team. See the ChangeLog
23 * files for a list of changes. These files are distributed with
24 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
33 #include "gdkpixmap.h"
34 #include "gdkprivate.h"
37 static void gdk_win32_gc_destroy (GdkGC *gc);
38 static void gdk_win32_gc_get_values (GdkGC *gc,
40 static void gdk_win32_gc_set_values (GdkGC *gc,
42 GdkGCValuesMask values_mask);
43 static void gdk_win32_gc_set_dashes (GdkGC *gc,
48 static GdkGCClass gdk_win32_gc_class = {
50 gdk_win32_gc_get_values,
51 gdk_win32_gc_set_values,
52 gdk_win32_gc_set_dashes
56 gdk_win32_gc_values_to_win32values (GdkGCValues *values,
62 GDK_NOTE (MISC, g_print ("{"));
64 if (mask & GDK_GC_FOREGROUND)
66 data->foreground = values->foreground.pixel;
67 data->values_mask |= GDK_GC_FOREGROUND;
68 GDK_NOTE (MISC, (g_print ("fg=%.06x", data->foreground),
72 if (mask & GDK_GC_BACKGROUND)
74 data->background = values->background.pixel;
75 data->values_mask |= GDK_GC_BACKGROUND;
76 GDK_NOTE (MISC, (g_print ("%sbg=%.06x", s, data->background),
80 if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT
81 || values->font->type == GDK_FONT_FONTSET))
83 if (data->font != NULL)
84 gdk_font_unref (data->font);
85 data->font = values->font;
86 if (data->font != NULL)
90 gdk_font_ref (data->font);
91 data->values_mask |= GDK_GC_FONT;
92 GDK_NOTE (MISC, (xlfd = gdk_font_full_name_get (data->font),
93 g_print ("%sfont=%s", s, xlfd),
95 gdk_font_full_name_free (xlfd)));
99 data->values_mask &= ~GDK_GC_FONT;
100 GDK_NOTE (MISC, (g_print ("%sfont=NULL"),
105 if (mask & GDK_GC_FUNCTION)
107 GDK_NOTE (MISC, (g_print ("%srop2=", s),
109 switch (values->function)
112 data->rop2 = R2_COPYPEN;
113 GDK_NOTE (MISC, g_print ("COPYPEN"));
117 GDK_NOTE (MISC, g_print ("NOT"));
120 data->rop2 = R2_XORPEN;
121 GDK_NOTE (MISC, g_print ("XORPEN"));
124 data->rop2 = R2_BLACK;
125 GDK_NOTE (MISC, g_print ("BLACK"));
128 data->rop2 = R2_MASKPEN;
129 GDK_NOTE (MISC, g_print ("MASKPEN"));
131 case GDK_AND_REVERSE:
132 data->rop2 = R2_MASKPENNOT;
133 GDK_NOTE (MISC, g_print ("MASKPENNOT"));
136 data->rop2 = R2_MASKNOTPEN;
137 GDK_NOTE (MISC, g_print ("MASKNOTPEN"));
141 GDK_NOTE (MISC, g_print ("NOP"));
144 data->rop2 = R2_MERGEPEN;
145 GDK_NOTE (MISC, g_print ("MERGEPEN"));
148 data->rop2 = R2_NOTXORPEN;
149 GDK_NOTE (MISC, g_print ("NOTXORPEN"));
152 data->rop2 = R2_MERGEPENNOT;
153 GDK_NOTE (MISC, g_print ("MERGEPENNOT"));
155 case GDK_COPY_INVERT:
156 data->rop2 = R2_NOTCOPYPEN;
157 GDK_NOTE (MISC, g_print ("NOTCOPYPEN"));
160 data->rop2 = R2_MERGENOTPEN;
161 GDK_NOTE (MISC, g_print ("MERGENOTPEN"));
164 data->rop2 = R2_NOTMASKPEN;
165 GDK_NOTE (MISC, g_print ("NOTMASKPEN"));
168 data->rop2 = R2_WHITE;
169 GDK_NOTE (MISC, g_print ("WHITE"));
172 data->values_mask |= GDK_GC_FUNCTION;
175 if (mask & GDK_GC_FILL)
177 data->fill_style = values->fill;
178 data->values_mask |= GDK_GC_FILL;
179 GDK_NOTE (MISC, (g_print ("%sfill=%d", s, data->fill_style),
183 if (mask & GDK_GC_TILE)
185 if (data->tile != NULL)
186 gdk_drawable_unref (data->tile);
187 data->tile = values->tile;
188 if (data->tile != NULL)
190 gdk_drawable_ref (data->tile);
191 data->values_mask |= GDK_GC_TILE;
192 GDK_NOTE (MISC, (g_print ("%stile=%#x", s,
193 GDK_DRAWABLE_XID (data->tile)),
198 data->values_mask &= ~GDK_GC_TILE;
199 GDK_NOTE (MISC, (g_print ("%stile=NULL", s),
204 if (mask & GDK_GC_STIPPLE)
206 if (data->stipple != NULL)
207 gdk_drawable_unref (data->stipple);
208 data->stipple = values->stipple;
209 if (data->stipple != NULL)
211 gdk_drawable_ref (data->stipple);
212 data->values_mask |= GDK_GC_STIPPLE;
213 GDK_NOTE (MISC, (g_print ("%sstipple=%#x", s,
214 GDK_DRAWABLE_XID (data->stipple)),
219 data->values_mask &= ~GDK_GC_STIPPLE;
220 GDK_NOTE (MISC, (g_print ("%sstipple=NULL", s),
225 if (mask & GDK_GC_CLIP_MASK)
227 if (data->clip_region != NULL)
228 if (!DeleteObject (data->clip_region))
229 WIN32_API_FAILED ("DeleteObject");
230 if (values->clip_mask != NULL)
233 BitmapToRegion ((HBITMAP) GDK_DRAWABLE_XID (values->clip_mask));
234 data->values_mask |= GDK_GC_CLIP_MASK;
238 data->clip_region = NULL;
239 data->values_mask &= ~GDK_GC_CLIP_MASK;
241 GDK_NOTE (MISC, (g_print ("%sclip=%#x", s, data->clip_region),
245 if (mask & GDK_GC_SUBWINDOW)
247 data->subwindow_mode = values->subwindow_mode;
248 data->values_mask |= GDK_GC_SUBWINDOW;
249 GDK_NOTE (MISC, (g_print ("%ssubw=%d", s, data->subwindow_mode),
253 if (mask & GDK_GC_TS_X_ORIGIN)
255 data->ts_x_origin = values->ts_x_origin;
256 data->values_mask |= GDK_GC_TS_X_ORIGIN;
257 GDK_NOTE (MISC, (g_print ("%sts_x=%d", s, data->ts_x_origin),
261 if (mask & GDK_GC_TS_Y_ORIGIN)
263 data->ts_y_origin = values->ts_y_origin;
264 data->values_mask |= GDK_GC_TS_Y_ORIGIN;
265 GDK_NOTE (MISC, (g_print ("%sts_y=%d", s, data->ts_y_origin),
269 if (mask & GDK_GC_CLIP_X_ORIGIN)
271 data->clip_x_origin = values->clip_x_origin;
272 data->values_mask |= GDK_GC_CLIP_X_ORIGIN;
273 GDK_NOTE (MISC, (g_print ("%sclip_x=%d", s, data->clip_x_origin),
277 if (mask & GDK_GC_CLIP_Y_ORIGIN)
279 data->clip_y_origin = values->clip_y_origin;
280 data->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
281 GDK_NOTE (MISC, (g_print ("%sclip_y=%d", s, data->clip_y_origin),
285 if (mask & GDK_GC_EXPOSURES)
287 data->graphics_exposures = values->graphics_exposures;
288 data->values_mask |= GDK_GC_EXPOSURES;
289 GDK_NOTE (MISC, (g_print ("%sexp=%d", s, data->graphics_exposures),
293 if (mask & GDK_GC_LINE_WIDTH)
295 data->pen_width = values->line_width;
296 data->values_mask |= GDK_GC_LINE_WIDTH;
297 GDK_NOTE (MISC, (g_print ("%spw=%d", s, data->pen_width),
301 if (mask & GDK_GC_LINE_STYLE)
303 data->pen_style &= ~(PS_STYLE_MASK);
304 GDK_NOTE (MISC, (g_print ("%sps|=", s),
306 switch (values->line_style)
309 GDK_NOTE (MISC, g_print ("LINE_SOLID"));
310 data->pen_style |= PS_SOLID;
312 case GDK_LINE_ON_OFF_DASH:
313 case GDK_LINE_DOUBLE_DASH: /* ??? */
314 GDK_NOTE (MISC, g_print ("DASH"));
315 data->pen_style |= PS_DASH;
318 data->values_mask |= GDK_GC_LINE_STYLE;
321 if (mask & GDK_GC_CAP_STYLE)
323 data->pen_style &= ~(PS_ENDCAP_MASK);
324 GDK_NOTE (MISC, (g_print ("%sps|=", s),
326 switch (values->cap_style)
328 case GDK_CAP_NOT_LAST: /* ??? */
330 GDK_NOTE (MISC, g_print ("ENDCAP_FLAT"));
331 data->pen_style |= PS_ENDCAP_FLAT;
334 GDK_NOTE (MISC, g_print ("ENDCAP_ROUND"));
335 data->pen_style |= PS_ENDCAP_ROUND;
337 case GDK_CAP_PROJECTING:
338 GDK_NOTE (MISC, g_print ("ENDCAP_SQUARE"));
339 data->pen_style |= PS_ENDCAP_SQUARE;
342 data->values_mask |= GDK_GC_CAP_STYLE;
345 if (mask & GDK_GC_JOIN_STYLE)
347 data->pen_style &= ~(PS_JOIN_MASK);
348 GDK_NOTE (MISC, (g_print ("%sps|=", s),
350 switch (values->join_style)
353 GDK_NOTE (MISC, g_print ("JOIN_MITER"));
354 data->pen_style |= PS_JOIN_MITER;
357 GDK_NOTE (MISC, g_print ("JOIN_ROUND"));
358 data->pen_style |= PS_JOIN_ROUND;
361 GDK_NOTE (MISC, g_print ("JOIN_BEVEL"));
362 data->pen_style |= PS_JOIN_BEVEL;
365 data->values_mask |= GDK_GC_JOIN_STYLE;
367 GDK_NOTE (MISC, g_print ("}\n"));
371 _gdk_win32_gc_new (GdkDrawable *drawable,
373 GdkGCValuesMask mask)
376 GdkGCPrivate *private;
377 GdkGCWin32Data *data;
378 static GdkColor black;
379 static GdkColor white;
380 static gboolean beenhere = FALSE;
384 gdk_color_black (gdk_colormap_get_system (), &black);
385 gdk_color_white (gdk_colormap_get_system (), &white);
389 gc = gdk_gc_alloc ();
390 private = (GdkGCPrivate *)gc;
392 private->klass = &gdk_win32_gc_class;
393 private->klass_data = data = g_new (GdkGCWin32Data, 1);
395 data->foreground = black.pixel;
396 data->background = white.pixel;
398 data->rop2 = R2_COPYPEN;
399 data->fill_style = GDK_SOLID;
401 data->stipple = NULL;
402 data->clip_region = NULL;
403 data->ts_x_origin = data->ts_y_origin =
404 data->clip_x_origin = data->clip_y_origin = 0;
405 data->pen_style = PS_GEOMETRIC;
408 data->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL;
410 GDK_NOTE (MISC, g_print ("_gdk_win32_gc_new: "));
411 gdk_win32_gc_values_to_win32values (values, mask, data);
416 GDK_NOTE (MISC, g_print (" = %p\n", gc));
422 gdk_win32_gc_destroy (GdkGC *gc)
424 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
426 if (data->values_mask & GDK_GC_FONT)
427 gdk_font_unref (data->font);
429 if (data->values_mask & GDK_GC_TILE)
430 gdk_drawable_unref (data->tile);
432 if (data->values_mask & GDK_GC_STIPPLE)
433 gdk_drawable_unref (data->stipple);
435 if (data->values_mask & GDK_GC_CLIP_MASK)
436 DeleteObject (data->clip_region);
438 g_free (GDK_GC_WIN32DATA (gc));
442 gdk_win32_gc_get_values (GdkGC *gc,
445 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
447 values->foreground.pixel = data->foreground;
448 values->background.pixel = data->background;
449 values->font = data->font;
454 values->function = GDK_COPY; break;
456 values->function = GDK_INVERT; break;
458 values->function = GDK_XOR; break;
460 values->function = GDK_CLEAR; break;
462 values->function = GDK_AND; break;
464 values->function = GDK_AND_REVERSE; break;
466 values->function = GDK_AND_INVERT; break;
468 values->function = GDK_NOOP; break;
470 values->function = GDK_OR; break;
472 values->function = GDK_EQUIV; break;
474 values->function = GDK_OR_REVERSE; break;
476 values->function = GDK_COPY_INVERT; break;
478 values->function = GDK_OR_INVERT; break;
480 values->function = GDK_NAND; break;
482 values->function = GDK_SET; break;
485 values->fill = data->fill_style;
487 values->tile = data->tile;
488 values->stipple = data->stipple;
490 if (data->clip_region != NULL)
498 GetRgnBox (data->clip_region, &rect);
500 gdk_pixmap_new (NULL, rect.right - rect.left, rect.bottom - rect.top,
502 hbr = GetStockObject (WHITE_BRUSH);
503 if ((hdc = CreateCompatibleDC (NULL)) == NULL)
504 WIN32_API_FAILED ("CreateCompatibleDC");
506 SelectObject (hdc, GDK_DRAWABLE_XID (pixmap))) == NULL)
507 WIN32_API_FAILED ("SelectObject #1");
508 hbr = GetStockObject (BLACK_BRUSH);
509 if (!FillRect (hdc, &rect, hbr))
510 WIN32_API_FAILED ("FillRect");
511 hbr = GetStockObject (WHITE_BRUSH);
512 if (!FillRgn (hdc, data->clip_region, hbr))
513 WIN32_API_FAILED ("FillRgn");
514 if (SelectObject (hdc, oldbitmap) == NULL)
515 WIN32_API_FAILED ("SelectObject #2");
517 values->clip_mask = pixmap;
520 values->clip_mask = NULL;
521 values->subwindow_mode = data->subwindow_mode;
522 values->ts_x_origin = data->ts_x_origin;
523 values->ts_y_origin = data->ts_y_origin;
524 values->clip_x_origin = data->clip_x_origin;
525 values->clip_y_origin = data->clip_y_origin;
526 values->graphics_exposures = data->graphics_exposures;
527 values->line_width = data->pen_width;
529 if (data->pen_style & PS_SOLID)
530 values->line_style = GDK_LINE_SOLID;
531 else if (data->pen_style & PS_DASH)
532 values->line_style = GDK_LINE_ON_OFF_DASH;
534 values->line_style = GDK_LINE_SOLID;
536 /* PS_ENDCAP_ROUND is zero */
537 if (data->pen_style & PS_ENDCAP_FLAT)
538 values->cap_style = GDK_CAP_BUTT;
539 else if (data->pen_style & PS_ENDCAP_SQUARE)
540 values->cap_style = GDK_CAP_PROJECTING;
542 values->cap_style = GDK_CAP_ROUND;
544 /* PS_JOIN_ROUND is zero */
545 if (data->pen_style & PS_JOIN_MITER)
546 values->join_style = GDK_JOIN_MITER;
547 else if (data->pen_style & PS_JOIN_BEVEL)
548 values->join_style = GDK_JOIN_BEVEL;
550 values->join_style = GDK_JOIN_ROUND;
554 gdk_win32_gc_set_values (GdkGC *gc,
556 GdkGCValuesMask mask)
558 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
560 GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_values: "));
562 gdk_win32_gc_values_to_win32values (values, mask, data);
566 gdk_win32_gc_set_dashes (GdkGC *gc,
571 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
575 data->pen_style &= ~(PS_STYLE_MASK);
576 data->pen_style |= PS_DASH;
580 gdk_gc_set_clip_rectangle (GdkGC *gc,
581 GdkRectangle *rectangle)
583 GdkGCWin32Data *data;
585 g_return_if_fail (gc != NULL);
587 data = GDK_GC_WIN32DATA (gc);
589 if (data->clip_region != NULL)
590 if (!DeleteObject (data->clip_region))
591 WIN32_API_FAILED ("DeleteObject");
595 g_print ("gdk_gc_set_clip_rectangle: (%d) %dx%d@+%d+%d\n",
597 rectangle->width, rectangle->height,
598 rectangle->x, rectangle->y));
599 if ((data->clip_region =
600 CreateRectRgn (rectangle->x, rectangle->y,
601 rectangle->x + rectangle->width,
602 rectangle->y + rectangle->height)) == NULL)
603 WIN32_API_FAILED ("CreateRectRgn");
605 data->values_mask |= GDK_GC_CLIP_MASK;
609 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: (%d) NULL\n",
611 data->clip_region = NULL;
612 data->values_mask &= ~GDK_GC_CLIP_MASK;
614 data->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
618 gdk_gc_set_clip_region (GdkGC *gc,
621 GdkGCWin32Data *data;
623 g_return_if_fail (gc != NULL);
625 data = GDK_GC_WIN32DATA (gc);
627 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: (%d) %s\n",
628 data, (region != NULL ? "xxx" : "None")));
630 if (data->clip_region != NULL)
631 if (!DeleteObject (data->clip_region))
632 WIN32_API_FAILED ("DeleteObject");
635 GdkRegionPrivate *region_private;
637 region_private = (GdkRegionPrivate*) region;
638 data->clip_region = CreateRectRgn (1, 1, 0, 0);
639 CombineRgn (data->clip_region, region_private->xregion, NULL, RGN_COPY);
640 data->values_mask |= GDK_GC_CLIP_MASK;
644 data->clip_region = NULL;
645 data->values_mask &= ~GDK_GC_CLIP_MASK;
650 gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
652 GdkGCWin32Data *dst_data = GDK_GC_WIN32DATA (dst_gc);
653 GdkGCWin32Data *src_data = GDK_GC_WIN32DATA (src_gc);
657 if (dst_data->font != NULL)
658 gdk_font_unref (dst_data->font);
659 if (dst_data->tile != NULL)
660 gdk_drawable_unref (dst_data->tile);
661 if (dst_data->stipple != NULL)
662 gdk_drawable_unref (dst_data->stipple);
663 if (dst_data->clip_region != NULL)
664 if (!DeleteObject (dst_data->clip_region))
665 WIN32_API_FAILED ("DeleteObject");
667 *dst_data = *src_data;
669 if (dst_data->clip_region != NULL)
671 nbytes = GetRegionData (dst_data->clip_region, 0, NULL);
672 rgn = g_malloc (nbytes);
673 GetRegionData (dst_data->clip_region, nbytes, rgn);
674 if ((dst_data->clip_region = ExtCreateRegion (NULL, nbytes, rgn)) == NULL)
675 WIN32_API_FAILED ("ExtCreateRegion");
679 if (dst_data->font != NULL)
680 gdk_font_ref (dst_data->font);
681 if (dst_data->tile != NULL)
682 gdk_drawable_ref (dst_data->tile);
683 if (dst_data->stipple != NULL)
684 gdk_drawable_ref (dst_data->stipple);
687 static guint mask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
690 predraw_set_foreground (GdkGCWin32Data *data,
691 GdkColormapPrivateWin32 *colormap_private)
700 if (colormap_private == NULL)
702 /* A 1 bit deep bitmap */
707 PALETTEENTRY palPalEntry[2];
709 static HPALETTE hpal = NULL;
713 /* Create a b&w palette */
714 logpal.palVersion = 0x300;
715 logpal.palNumEntries = 2;
716 logpal.palPalEntry[0].peRed =
717 logpal.palPalEntry[0].peGreen =
718 logpal.palPalEntry[0].peBlue = 0x00;
719 logpal.palPalEntry[0].peFlags = 0x00;
720 logpal.palPalEntry[1].peRed =
721 logpal.palPalEntry[1].peGreen =
722 logpal.palPalEntry[1].peBlue = 0xFF;
723 logpal.palPalEntry[1].peFlags = 0x00;
724 if ((hpal = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
725 WIN32_API_FAILED ("CreatePalette");
727 SelectPalette (data->xgc, hpal, FALSE);
728 RealizePalette (data->xgc);
729 fg = PALETTEINDEX (data->foreground);
731 else if (colormap_private->xcolormap->rc_palette)
734 if (SelectPalette (data->xgc, colormap_private->xcolormap->palette,
736 WIN32_API_FAILED ("SelectPalette");
737 if (TRUE || colormap_private->xcolormap->stale)
739 if ((k = RealizePalette (data->xgc)) == GDI_ERROR)
740 WIN32_API_FAILED ("RealizePalette");
741 colormap_private->xcolormap->stale = FALSE;
744 g_print ("Selected palette %#x for gc %#x, realized %d colors\n",
745 colormap_private->xcolormap->palette, data->xgc, k);
747 fg = PALETTEINDEX (data->foreground);
751 visual = colormap_private->base.visual;
752 r = (data->foreground & visual->red_mask) >> visual->red_shift;
753 r = (r * 255) / mask[visual->red_prec];
754 g = (data->foreground & visual->green_mask) >> visual->green_shift;
755 g = (g * 255) / mask[visual->green_prec];
756 b = (data->foreground & visual->blue_mask) >> visual->blue_shift;
757 b = (b * 255) / mask[visual->blue_prec];
759 fg = GetNearestColor (data->xgc, RGB (r, g, b));
762 if (SetTextColor (data->xgc, fg) == CLR_INVALID)
763 WIN32_API_FAILED ("SetTextColor");
765 /* Create and select pen and brush. */
767 logbrush.lbStyle = BS_SOLID;
768 logbrush.lbColor = fg;
770 if ((hpen = ExtCreatePen (data->pen_style, data->pen_width,
771 &logbrush, 0, NULL)) == NULL)
772 WIN32_API_FAILED ("ExtCreatePen");
774 if (SelectObject (data->xgc, hpen) == NULL)
775 WIN32_API_FAILED ("SelectObject #2");
777 switch (data->fill_style)
780 case GDK_OPAQUE_STIPPLED:
781 if ((hbr = CreatePatternBrush (GDK_DRAWABLE_XID (data->stipple))) == NULL)
782 WIN32_API_FAILED ("CreatePatternBrush");
784 SetBrushOrgEx(data->xgc, data->ts_x_origin,
785 data->ts_y_origin, NULL);
791 if ((hbr = CreateSolidBrush (fg)) == NULL)
792 WIN32_API_FAILED ("CreateSolidBrush");
796 if (SelectObject (data->xgc, hbr) == NULL)
797 WIN32_API_FAILED ("SelectObject #3");
801 predraw_set_background (GdkGCWin32Data *data,
802 GdkColormapPrivateWin32 *colormap_private)
808 if (colormap_private == NULL)
811 bg = PALETTEINDEX (data->background);
813 else if (colormap_private->xcolormap->rc_palette)
815 bg = PALETTEINDEX (data->background);
819 visual = colormap_private->base.visual;
820 r = (data->background & visual->red_mask) >> visual->red_shift;
821 r = (r * 255) / mask[visual->red_prec];
822 g = (data->background & visual->green_mask) >> visual->green_shift;
823 g = (g * 255) / mask[visual->green_prec];
824 b = (data->background & visual->blue_mask) >> visual->blue_shift;
825 b = (b * 255) / mask[visual->green_prec];
827 bg = GetNearestColor (data->xgc, RGB (r, g, b));
829 if (SetBkColor (data->xgc, bg) == CLR_INVALID)
830 WIN32_API_FAILED ("SetBkColor");
835 gdk_gc_predraw (GdkDrawable *drawable,
836 GdkGCPrivate *gc_private,
837 GdkGCValuesMask usage)
839 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
840 GdkColormapPrivateWin32 *colormap_private =
841 (GdkColormapPrivateWin32 *) drawable_private->colormap;
842 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
844 g_assert (data->xgc == NULL);
846 data->hwnd = GDK_DRAWABLE_XID (drawable);
848 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
850 if ((data->xgc = CreateCompatibleDC (NULL)) == NULL)
851 WIN32_API_FAILED ("CreateCompatibleDC");
853 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
854 WIN32_API_FAILED ("SaveDC #1");
856 if (SelectObject (data->xgc, data->hwnd) == NULL)
857 WIN32_API_FAILED ("SelectObject #1");
861 if ((data->xgc = GetDC (data->hwnd)) == NULL)
862 WIN32_API_FAILED ("GetDC");
864 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
865 WIN32_API_FAILED ("SaveDC #2");
868 if (usage & GDK_GC_FOREGROUND)
869 predraw_set_foreground (data, colormap_private);
871 if ((usage & GDK_GC_BACKGROUND) && (data->values_mask & GDK_GC_BACKGROUND))
872 predraw_set_background (data, colormap_private);
874 if (usage & GDK_GC_FONT)
876 if (SetBkMode (data->xgc, TRANSPARENT) == 0)
877 WIN32_API_FAILED ("SetBkMode");
879 if (SetTextAlign (data->xgc, TA_BASELINE) == GDI_ERROR)
880 WIN32_API_FAILED ("SetTextAlign");
883 if (data->values_mask & GDK_GC_FUNCTION)
884 if (SetROP2 (data->xgc, data->rop2) == 0)
885 WIN32_API_FAILED ("SetROP2");
887 if (data->values_mask & GDK_GC_CLIP_MASK
888 && data->clip_region != NULL)
890 if (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
891 OffsetRgn (data->clip_region,
892 data->clip_x_origin, data->clip_y_origin);
893 SelectClipRgn (data->xgc, data->clip_region);
900 gdk_gc_postdraw (GdkDrawable *drawable,
901 GdkGCPrivate *gc_private,
902 GdkGCValuesMask usage)
904 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
905 GdkColormapPrivateWin32 *colormap_private =
906 (GdkColormapPrivateWin32 *) drawable_private->colormap;
907 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
911 if (usage & GDK_GC_FOREGROUND)
913 if ((hpen = GetCurrentObject (data->xgc, OBJ_PEN)) == NULL)
914 WIN32_API_FAILED ("GetCurrentObject #1");
916 if ((hbr = GetCurrentObject (data->xgc, OBJ_BRUSH)) == NULL)
917 WIN32_API_FAILED ("GetCurrentObject #2");
920 if (!RestoreDC (data->xgc, data->saved_dc))
921 WIN32_API_FAILED ("RestoreDC");
923 if (colormap_private != NULL
924 && colormap_private->xcolormap->rc_palette
925 && colormap_private->xcolormap->stale)
927 SelectPalette (data->xgc, GetStockObject (DEFAULT_PALETTE), FALSE);
928 if (!UnrealizeObject (colormap_private->xcolormap->palette))
929 WIN32_API_FAILED ("UnrealizeObject");
932 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
934 if (!DeleteDC (data->xgc))
935 WIN32_API_FAILED ("DeleteDC");
939 ReleaseDC (data->hwnd, data->xgc);
943 if (!DeleteObject (hpen))
944 WIN32_API_FAILED ("DeleteObject #1");
947 if (!DeleteObject (hbr))
948 WIN32_API_FAILED ("DeleteObject #2");
950 if (data->values_mask & GDK_GC_CLIP_MASK
951 && data->clip_region != NULL
952 && (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN)))
953 OffsetRgn (data->clip_region,
954 -data->clip_x_origin, -data->clip_y_origin);
958 /* This function originally from Jean-Edouard Lachand-Robert, and
959 * available at www.codeguru.com. Simplified for our needs, now
960 * handles just one-bit deep bitmaps (in Window parlance, ie those
961 * that GDK calls bitmaps (and not pixmaps), with zero pixels being
966 * BitmapToRegion : Create a region from the "non-transparent" pixels of
968 * Author : Jean-Edouard Lachand-Robert
969 * (http://www.geocities.com/Paris/LeftBank/1160/resume.htm), June 1998.
973 BitmapToRegion (HBITMAP hBmp)
981 BITMAPINFOHEADER bmiHeader;
985 RGBQUAD bmiColors[2];
994 PALETTEENTRY palPalEntry[2];
996 static HPALETTE bwPalette = NULL;
1009 /* Create a B&W palette */
1010 if (bwPalette == NULL)
1012 /* Create a b&w palette */
1013 logpal.palVersion = 0x300;
1014 logpal.palNumEntries = 2;
1015 logpal.palPalEntry[0].peRed =
1016 logpal.palPalEntry[0].peGreen =
1017 logpal.palPalEntry[0].peBlue = 0;
1018 logpal.palPalEntry[0].peFlags = 0;
1019 logpal.palPalEntry[1].peRed =
1020 logpal.palPalEntry[1].peGreen =
1021 logpal.palPalEntry[1].peBlue = 0xFF;
1022 logpal.palPalEntry[1].peFlags = 0;
1023 if ((bwPalette = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
1024 WIN32_API_FAILED ("CreatePalette");
1027 /* Create a memory DC inside which we will scan the bitmap content */
1028 hMemDC = CreateCompatibleDC (NULL);
1031 WIN32_API_FAILED ("CreateCompatibleDC #1");
1035 SelectPalette (hMemDC, bwPalette, FALSE);
1036 RealizePalette (hMemDC);
1038 /* Get bitmap size */
1039 GetObject(hBmp, sizeof(bm), &bm);
1041 /* Create a 8 bits depth bitmap and select it into the memory DC */
1042 bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
1043 bmi.bmiHeader.biWidth = bm.bmWidth;
1044 bmi.bmiHeader.biHeight = bm.bmHeight;
1045 bmi.bmiHeader.biPlanes = 1;
1046 bmi.bmiHeader.biBitCount = 8;
1047 bmi.bmiHeader.biCompression = BI_RGB;
1048 bmi.bmiHeader.biSizeImage = 0;
1049 bmi.bmiHeader.biXPelsPerMeter = 0;
1050 bmi.bmiHeader.biYPelsPerMeter = 0;
1051 bmi.bmiHeader.biClrUsed = 2;
1052 bmi.bmiHeader.biClrImportant = 2;
1054 bmi.bmiColors[0] = 0;
1055 bmi.bmiColors[1] = 1;
1056 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1057 DIB_PAL_COLORS, &pbits8, NULL, 0);
1059 bmi.bmiColors[0].rgbBlue =
1060 bmi.bmiColors[0].rgbGreen =
1061 bmi.bmiColors[0].rgbRed = 0x00;
1062 bmi.bmiColors[0].rgbReserved = 0x00;
1064 bmi.bmiColors[1].rgbBlue =
1065 bmi.bmiColors[1].rgbGreen =
1066 bmi.bmiColors[1].rgbRed = 0xFF;
1067 bmi.bmiColors[0].rgbReserved = 0x00;
1069 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1070 DIB_RGB_COLORS, &pbits8, NULL, 0);
1074 WIN32_API_FAILED ("CreateDIBSection");
1079 holdBmp = (HBITMAP) SelectObject (hMemDC, hbm8);
1081 /* Create a DC just to copy the bitmap into the memory DC*/
1082 hDC = CreateCompatibleDC (hMemDC);
1085 WIN32_API_FAILED ("CreateCompatibleDC #2");
1086 SelectObject (hMemDC, holdBmp);
1087 DeleteObject (hbm8);
1092 /* Get how many bytes per row we have for the bitmap bits */
1093 GetObject (hbm8, sizeof (bm8), &bm8);
1095 /* Hans Breuer found a fix to the long-standing erroneous behaviour
1096 * on NT 4.0: There seems to be a bug in Win NT 4.0 GDI: scanlines
1097 * in bitmaps are dword aligned on both Win95 and NT. In the case of
1098 * a bitmap with 22 bytes worth of width, GetObject above returns
1099 * with bmWidth == 22. On Win95 bmWidthBytes == 24, as it should be,
1100 * but on NT is it 22. We need to correct this here.
1102 bm8.bmWidthBytes = (((bm8.bmWidthBytes-1)/4)+1)*4; /* dword aligned!! */
1104 /* Copy the bitmap into the memory DC*/
1105 holdBmp2 = (HBITMAP) SelectObject (hDC, hBmp);
1107 if (!BitBlt (hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, hDC, 0, 0, SRCCOPY))
1109 WIN32_API_FAILED ("BitBlt");
1110 SelectObject (hDC, holdBmp2);
1111 SelectObject (hMemDC, holdBmp);
1112 DeleteObject (hbm8);
1116 SelectObject (hDC, holdBmp2);
1119 /* For better performances, we will use the ExtCreateRegion()
1120 * function to create the region. This function take a RGNDATA
1121 * structure on entry. We will add rectangles by amount of
1122 * ALLOC_UNIT number in this structure.
1124 #define ALLOC_UNIT 100
1125 maxRects = ALLOC_UNIT;
1127 pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
1128 pData->rdh.dwSize = sizeof (RGNDATAHEADER);
1129 pData->rdh.iType = RDH_RECTANGLES;
1130 pData->rdh.nCount = pData->rdh.nRgnSize = 0;
1131 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1133 /* Scan each bitmap from bottom to top (the bitmap is inverted vertically)*/
1134 p8 = (BYTE *) pbits8 + (bm8.bmHeight - 1) * bm8.bmWidthBytes;
1135 for (y = 0; y < bm.bmHeight; y++)
1137 /* Scan each bitmap row from left to right*/
1138 for (x = 0; x < bm.bmWidth; x++)
1140 /* Search for a continuous range of "non transparent pixels"*/
1143 while (x < bm.bmWidth)
1146 /* This pixel is "transparent"*/
1155 /* Add the pixels (x0, y) to (x, y+1) as a new rectangle
1158 if (pData->rdh.nCount >= maxRects)
1160 maxRects += ALLOC_UNIT;
1161 pData = g_realloc (pData, sizeof(RGNDATAHEADER)
1162 + (sizeof(RECT) * maxRects));
1164 pr = (RECT *) &pData->Buffer;
1165 SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
1166 if (x0 < pData->rdh.rcBound.left)
1167 pData->rdh.rcBound.left = x0;
1168 if (y < pData->rdh.rcBound.top)
1169 pData->rdh.rcBound.top = y;
1170 if (x > pData->rdh.rcBound.right)
1171 pData->rdh.rcBound.right = x;
1172 if (y+1 > pData->rdh.rcBound.bottom)
1173 pData->rdh.rcBound.bottom = y+1;
1174 pData->rdh.nCount++;
1176 /* On Windows98, ExtCreateRegion() may fail if the
1177 * number of rectangles is too large (ie: >
1178 * 4000). Therefore, we have to create the region by
1181 if (pData->rdh.nCount == 2000)
1183 HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
1186 CombineRgn(hRgn, hRgn, h, RGN_OR);
1191 pData->rdh.nCount = 0;
1192 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1197 /* Go to next row (remember, the bitmap is inverted vertically)*/
1198 p8 -= bm8.bmWidthBytes;
1201 /* Create or extend the region with the remaining rectangles*/
1202 h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
1203 + (sizeof (RECT) * maxRects), pData);
1206 CombineRgn (hRgn, hRgn, h, RGN_OR);
1213 SelectObject(hMemDC, holdBmp);
1214 DeleteObject (hbm8);