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,
63 GDK_NOTE (MISC, g_print ("{"));
65 if (mask & GDK_GC_FOREGROUND)
67 data->foreground = values->foreground.pixel;
68 data->values_mask |= GDK_GC_FOREGROUND;
69 GDK_NOTE (MISC, (g_print ("fg=%.06x", data->foreground),
73 if (mask & GDK_GC_BACKGROUND)
75 data->background = values->background.pixel;
76 data->values_mask |= GDK_GC_BACKGROUND;
77 GDK_NOTE (MISC, (g_print ("%sbg=%.06x", s, data->background),
81 if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT
82 || values->font->type == GDK_FONT_FONTSET))
84 if (data->font != NULL)
85 gdk_font_unref (data->font);
86 data->font = values->font;
87 if (data->font != NULL)
91 gdk_font_ref (data->font);
92 data->values_mask |= GDK_GC_FONT;
93 GDK_NOTE (MISC, (xlfd = gdk_font_full_name_get (data->font),
94 g_print ("%sfont=%s", s, xlfd),
96 gdk_font_full_name_free (xlfd)));
100 data->values_mask &= ~GDK_GC_FONT;
101 GDK_NOTE (MISC, (g_print ("%sfont=NULL"),
106 if (mask & GDK_GC_FUNCTION)
108 GDK_NOTE (MISC, (g_print ("%srop2=", s),
110 switch (values->function)
113 data->rop2 = R2_COPYPEN;
114 GDK_NOTE (MISC, g_print ("COPYPEN"));
118 GDK_NOTE (MISC, g_print ("NOT"));
121 data->rop2 = R2_XORPEN;
122 GDK_NOTE (MISC, g_print ("XORPEN"));
125 data->rop2 = R2_BLACK;
126 GDK_NOTE (MISC, g_print ("BLACK"));
129 data->rop2 = R2_MASKPEN;
130 GDK_NOTE (MISC, g_print ("MASKPEN"));
132 case GDK_AND_REVERSE:
133 data->rop2 = R2_MASKPENNOT;
134 GDK_NOTE (MISC, g_print ("MASKPENNOT"));
137 data->rop2 = R2_MASKNOTPEN;
138 GDK_NOTE (MISC, g_print ("MASKNOTPEN"));
142 GDK_NOTE (MISC, g_print ("NOP"));
145 data->rop2 = R2_MERGEPEN;
146 GDK_NOTE (MISC, g_print ("MERGEPEN"));
149 data->rop2 = R2_NOTXORPEN;
150 GDK_NOTE (MISC, g_print ("NOTXORPEN"));
153 data->rop2 = R2_MERGEPENNOT;
154 GDK_NOTE (MISC, g_print ("MERGEPENNOT"));
156 case GDK_COPY_INVERT:
157 data->rop2 = R2_NOTCOPYPEN;
158 GDK_NOTE (MISC, g_print ("NOTCOPYPEN"));
161 data->rop2 = R2_MERGENOTPEN;
162 GDK_NOTE (MISC, g_print ("MERGENOTPEN"));
165 data->rop2 = R2_NOTMASKPEN;
166 GDK_NOTE (MISC, g_print ("NOTMASKPEN"));
169 data->rop2 = R2_WHITE;
170 GDK_NOTE (MISC, g_print ("WHITE"));
173 data->values_mask |= GDK_GC_FUNCTION;
176 if (mask & GDK_GC_FILL)
178 data->fill_style = values->fill;
179 data->values_mask |= GDK_GC_FILL;
180 GDK_NOTE (MISC, (g_print ("%sfill=%d", s, data->fill_style),
184 if (mask & GDK_GC_TILE)
186 if (data->tile != NULL)
187 gdk_drawable_unref (data->tile);
188 data->tile = values->tile;
189 if (data->tile != NULL)
191 gdk_drawable_ref (data->tile);
192 data->values_mask |= GDK_GC_TILE;
193 GDK_NOTE (MISC, (g_print ("%stile=%#x", s,
194 GDK_DRAWABLE_XID (data->tile)),
199 data->values_mask &= ~GDK_GC_TILE;
200 GDK_NOTE (MISC, (g_print ("%stile=NULL", s),
205 if (mask & GDK_GC_STIPPLE)
207 if (data->stipple != NULL)
208 gdk_drawable_unref (data->stipple);
209 data->stipple = values->stipple;
210 if (data->stipple != NULL)
212 gdk_drawable_get_size (data->stipple, &sw, &sh);
214 if (sw != 8 || sh != 8)
216 /* It seems that it *must* be 8x8, at least on my machine.
217 * Thus, tile an 8x8 bitmap with the stipple in case it is
218 * smaller, or simply use just the top left 8x8 in case it is
222 GdkPixmap *bm = gdk_bitmap_create_from_data (NULL, dummy, 8, 8);
223 GdkGC *gc = gdk_gc_new (bm);
232 gdk_draw_drawable (bm, gc, data->stipple, 0, 0, i, j, sw, sh);
241 gdk_drawable_ref (data->stipple);
242 data->values_mask |= GDK_GC_STIPPLE;
243 GDK_NOTE (MISC, (g_print ("%sstipple=%#x", s,
244 GDK_DRAWABLE_XID (data->stipple)),
249 data->values_mask &= ~GDK_GC_STIPPLE;
250 GDK_NOTE (MISC, (g_print ("%sstipple=NULL", s),
255 if (mask & GDK_GC_CLIP_MASK)
257 if (data->clip_region != NULL)
258 if (!DeleteObject (data->clip_region))
259 WIN32_API_FAILED ("DeleteObject");
260 if (values->clip_mask != NULL)
263 BitmapToRegion ((HBITMAP) GDK_DRAWABLE_XID (values->clip_mask));
264 data->values_mask |= GDK_GC_CLIP_MASK;
268 data->clip_region = NULL;
269 data->values_mask &= ~GDK_GC_CLIP_MASK;
271 GDK_NOTE (MISC, (g_print ("%sclip=%#x", s, data->clip_region),
275 if (mask & GDK_GC_SUBWINDOW)
277 data->subwindow_mode = values->subwindow_mode;
278 data->values_mask |= GDK_GC_SUBWINDOW;
279 GDK_NOTE (MISC, (g_print ("%ssubw=%d", s, data->subwindow_mode),
283 if (mask & GDK_GC_TS_X_ORIGIN)
285 data->ts_x_origin = values->ts_x_origin;
286 data->values_mask |= GDK_GC_TS_X_ORIGIN;
287 GDK_NOTE (MISC, (g_print ("%sts_x=%d", s, data->ts_x_origin),
291 if (mask & GDK_GC_TS_Y_ORIGIN)
293 data->ts_y_origin = values->ts_y_origin;
294 data->values_mask |= GDK_GC_TS_Y_ORIGIN;
295 GDK_NOTE (MISC, (g_print ("%sts_y=%d", s, data->ts_y_origin),
299 if (mask & GDK_GC_CLIP_X_ORIGIN)
301 data->clip_x_origin = values->clip_x_origin;
302 data->values_mask |= GDK_GC_CLIP_X_ORIGIN;
303 GDK_NOTE (MISC, (g_print ("%sclip_x=%d", s, data->clip_x_origin),
307 if (mask & GDK_GC_CLIP_Y_ORIGIN)
309 data->clip_y_origin = values->clip_y_origin;
310 data->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
311 GDK_NOTE (MISC, (g_print ("%sclip_y=%d", s, data->clip_y_origin),
315 if (mask & GDK_GC_EXPOSURES)
317 data->graphics_exposures = values->graphics_exposures;
318 data->values_mask |= GDK_GC_EXPOSURES;
319 GDK_NOTE (MISC, (g_print ("%sexp=%d", s, data->graphics_exposures),
323 if (mask & GDK_GC_LINE_WIDTH)
325 data->pen_width = values->line_width;
326 data->values_mask |= GDK_GC_LINE_WIDTH;
327 GDK_NOTE (MISC, (g_print ("%spw=%d", s, data->pen_width),
331 if (mask & GDK_GC_LINE_STYLE)
333 data->pen_style &= ~(PS_STYLE_MASK);
334 GDK_NOTE (MISC, (g_print ("%sps|=", s),
336 switch (values->line_style)
339 GDK_NOTE (MISC, g_print ("LINE_SOLID"));
340 data->pen_style |= PS_SOLID;
342 case GDK_LINE_ON_OFF_DASH:
343 case GDK_LINE_DOUBLE_DASH: /* ??? */
344 GDK_NOTE (MISC, g_print ("DASH"));
345 data->pen_style |= PS_DASH;
348 data->values_mask |= GDK_GC_LINE_STYLE;
351 if (mask & GDK_GC_CAP_STYLE)
353 data->pen_style &= ~(PS_ENDCAP_MASK);
354 GDK_NOTE (MISC, (g_print ("%sps|=", s),
356 switch (values->cap_style)
358 case GDK_CAP_NOT_LAST: /* ??? */
360 GDK_NOTE (MISC, g_print ("ENDCAP_FLAT"));
361 data->pen_style |= PS_ENDCAP_FLAT;
364 GDK_NOTE (MISC, g_print ("ENDCAP_ROUND"));
365 data->pen_style |= PS_ENDCAP_ROUND;
367 case GDK_CAP_PROJECTING:
368 GDK_NOTE (MISC, g_print ("ENDCAP_SQUARE"));
369 data->pen_style |= PS_ENDCAP_SQUARE;
372 data->values_mask |= GDK_GC_CAP_STYLE;
375 if (mask & GDK_GC_JOIN_STYLE)
377 data->pen_style &= ~(PS_JOIN_MASK);
378 GDK_NOTE (MISC, (g_print ("%sps|=", s),
380 switch (values->join_style)
383 GDK_NOTE (MISC, g_print ("JOIN_MITER"));
384 data->pen_style |= PS_JOIN_MITER;
387 GDK_NOTE (MISC, g_print ("JOIN_ROUND"));
388 data->pen_style |= PS_JOIN_ROUND;
391 GDK_NOTE (MISC, g_print ("JOIN_BEVEL"));
392 data->pen_style |= PS_JOIN_BEVEL;
395 data->values_mask |= GDK_GC_JOIN_STYLE;
397 GDK_NOTE (MISC, g_print ("}\n"));
401 _gdk_win32_gc_new (GdkDrawable *drawable,
403 GdkGCValuesMask mask)
406 GdkGCPrivate *private;
407 GdkGCWin32Data *data;
408 static GdkColor black;
409 static GdkColor white;
410 static gboolean beenhere = FALSE;
414 gdk_color_black (gdk_colormap_get_system (), &black);
415 gdk_color_white (gdk_colormap_get_system (), &white);
419 gc = gdk_gc_alloc ();
420 private = (GdkGCPrivate *)gc;
422 private->klass = &gdk_win32_gc_class;
423 private->klass_data = data = g_new (GdkGCWin32Data, 1);
425 data->foreground = black.pixel;
426 data->background = white.pixel;
428 data->rop2 = R2_COPYPEN;
429 data->fill_style = GDK_SOLID;
431 data->stipple = NULL;
432 data->clip_region = NULL;
433 data->ts_x_origin = data->ts_y_origin =
434 data->clip_x_origin = data->clip_y_origin = 0;
435 data->pen_style = PS_GEOMETRIC;
438 data->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL;
440 GDK_NOTE (MISC, g_print ("_gdk_win32_gc_new: "));
441 gdk_win32_gc_values_to_win32values (values, mask, data);
446 GDK_NOTE (MISC, g_print (" = %p\n", gc));
452 gdk_win32_gc_destroy (GdkGC *gc)
454 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
456 if (data->values_mask & GDK_GC_FONT)
457 gdk_font_unref (data->font);
459 if (data->values_mask & GDK_GC_TILE)
460 gdk_drawable_unref (data->tile);
462 if (data->values_mask & GDK_GC_STIPPLE)
463 gdk_drawable_unref (data->stipple);
465 if (data->values_mask & GDK_GC_CLIP_MASK)
466 DeleteObject (data->clip_region);
468 g_free (GDK_GC_WIN32DATA (gc));
472 gdk_win32_gc_get_values (GdkGC *gc,
475 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
477 values->foreground.pixel = data->foreground;
478 values->background.pixel = data->background;
479 values->font = data->font;
484 values->function = GDK_COPY; break;
486 values->function = GDK_INVERT; break;
488 values->function = GDK_XOR; break;
490 values->function = GDK_CLEAR; break;
492 values->function = GDK_AND; break;
494 values->function = GDK_AND_REVERSE; break;
496 values->function = GDK_AND_INVERT; break;
498 values->function = GDK_NOOP; break;
500 values->function = GDK_OR; break;
502 values->function = GDK_EQUIV; break;
504 values->function = GDK_OR_REVERSE; break;
506 values->function = GDK_COPY_INVERT; break;
508 values->function = GDK_OR_INVERT; break;
510 values->function = GDK_NAND; break;
512 values->function = GDK_SET; break;
515 values->fill = data->fill_style;
517 values->tile = data->tile;
518 values->stipple = data->stipple;
520 if (data->clip_region != NULL)
528 GetRgnBox (data->clip_region, &rect);
530 gdk_pixmap_new (NULL, rect.right - rect.left, rect.bottom - rect.top,
532 hbr = GetStockObject (WHITE_BRUSH);
533 if ((hdc = CreateCompatibleDC (NULL)) == NULL)
534 WIN32_API_FAILED ("CreateCompatibleDC");
536 SelectObject (hdc, GDK_DRAWABLE_XID (pixmap))) == NULL)
537 WIN32_API_FAILED ("SelectObject #1");
538 hbr = GetStockObject (BLACK_BRUSH);
539 if (!FillRect (hdc, &rect, hbr))
540 WIN32_API_FAILED ("FillRect");
541 hbr = GetStockObject (WHITE_BRUSH);
542 if (!FillRgn (hdc, data->clip_region, hbr))
543 WIN32_API_FAILED ("FillRgn");
544 if (SelectObject (hdc, oldbitmap) == NULL)
545 WIN32_API_FAILED ("SelectObject #2");
547 values->clip_mask = pixmap;
550 values->clip_mask = NULL;
551 values->subwindow_mode = data->subwindow_mode;
552 values->ts_x_origin = data->ts_x_origin;
553 values->ts_y_origin = data->ts_y_origin;
554 values->clip_x_origin = data->clip_x_origin;
555 values->clip_y_origin = data->clip_y_origin;
556 values->graphics_exposures = data->graphics_exposures;
557 values->line_width = data->pen_width;
559 if (data->pen_style & PS_SOLID)
560 values->line_style = GDK_LINE_SOLID;
561 else if (data->pen_style & PS_DASH)
562 values->line_style = GDK_LINE_ON_OFF_DASH;
564 values->line_style = GDK_LINE_SOLID;
566 /* PS_ENDCAP_ROUND is zero */
567 if (data->pen_style & PS_ENDCAP_FLAT)
568 values->cap_style = GDK_CAP_BUTT;
569 else if (data->pen_style & PS_ENDCAP_SQUARE)
570 values->cap_style = GDK_CAP_PROJECTING;
572 values->cap_style = GDK_CAP_ROUND;
574 /* PS_JOIN_ROUND is zero */
575 if (data->pen_style & PS_JOIN_MITER)
576 values->join_style = GDK_JOIN_MITER;
577 else if (data->pen_style & PS_JOIN_BEVEL)
578 values->join_style = GDK_JOIN_BEVEL;
580 values->join_style = GDK_JOIN_ROUND;
584 gdk_win32_gc_set_values (GdkGC *gc,
586 GdkGCValuesMask mask)
588 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
590 GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_values: "));
592 gdk_win32_gc_values_to_win32values (values, mask, data);
596 gdk_win32_gc_set_dashes (GdkGC *gc,
601 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
605 data->pen_style &= ~(PS_STYLE_MASK);
606 data->pen_style |= PS_DASH;
610 gdk_gc_set_clip_rectangle (GdkGC *gc,
611 GdkRectangle *rectangle)
613 GdkGCWin32Data *data;
615 g_return_if_fail (gc != NULL);
617 data = GDK_GC_WIN32DATA (gc);
619 if (data->clip_region != NULL)
620 if (!DeleteObject (data->clip_region))
621 WIN32_API_FAILED ("DeleteObject");
625 g_print ("gdk_gc_set_clip_rectangle: (%d) %dx%d@+%d+%d\n",
627 rectangle->width, rectangle->height,
628 rectangle->x, rectangle->y));
629 if ((data->clip_region =
630 CreateRectRgn (rectangle->x, rectangle->y,
631 rectangle->x + rectangle->width,
632 rectangle->y + rectangle->height)) == NULL)
633 WIN32_API_FAILED ("CreateRectRgn");
635 data->values_mask |= GDK_GC_CLIP_MASK;
639 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: (%d) NULL\n",
641 data->clip_region = NULL;
642 data->values_mask &= ~GDK_GC_CLIP_MASK;
644 data->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
648 gdk_gc_set_clip_region (GdkGC *gc,
651 GdkGCWin32Data *data;
653 g_return_if_fail (gc != NULL);
655 data = GDK_GC_WIN32DATA (gc);
657 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: (%d) %s\n",
658 data, (region != NULL ? "xxx" : "None")));
660 if (data->clip_region != NULL)
661 if (!DeleteObject (data->clip_region))
662 WIN32_API_FAILED ("DeleteObject");
665 GdkRegionPrivate *region_private;
667 region_private = (GdkRegionPrivate*) region;
668 data->clip_region = CreateRectRgn (1, 1, 0, 0);
669 CombineRgn (data->clip_region, region_private->xregion, NULL, RGN_COPY);
670 data->values_mask |= GDK_GC_CLIP_MASK;
674 data->clip_region = NULL;
675 data->values_mask &= ~GDK_GC_CLIP_MASK;
680 gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
682 GdkGCWin32Data *dst_data = GDK_GC_WIN32DATA (dst_gc);
683 GdkGCWin32Data *src_data = GDK_GC_WIN32DATA (src_gc);
687 if (dst_data->font != NULL)
688 gdk_font_unref (dst_data->font);
689 if (dst_data->tile != NULL)
690 gdk_drawable_unref (dst_data->tile);
691 if (dst_data->stipple != NULL)
692 gdk_drawable_unref (dst_data->stipple);
693 if (dst_data->clip_region != NULL)
694 if (!DeleteObject (dst_data->clip_region))
695 WIN32_API_FAILED ("DeleteObject");
697 *dst_data = *src_data;
699 if (dst_data->clip_region != NULL)
701 nbytes = GetRegionData (dst_data->clip_region, 0, NULL);
702 rgn = g_malloc (nbytes);
703 GetRegionData (dst_data->clip_region, nbytes, rgn);
704 if ((dst_data->clip_region = ExtCreateRegion (NULL, nbytes, rgn)) == NULL)
705 WIN32_API_FAILED ("ExtCreateRegion");
709 if (dst_data->font != NULL)
710 gdk_font_ref (dst_data->font);
711 if (dst_data->tile != NULL)
712 gdk_drawable_ref (dst_data->tile);
713 if (dst_data->stipple != NULL)
714 gdk_drawable_ref (dst_data->stipple);
717 static guint mask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
720 predraw_set_foreground (GdkGCWin32Data *data,
721 GdkColormapPrivateWin32 *colormap_private)
730 if (colormap_private == NULL)
732 /* A 1 bit deep bitmap */
737 PALETTEENTRY palPalEntry[2];
739 static HPALETTE hpal = NULL;
743 /* Create a b&w palette */
744 logpal.palVersion = 0x300;
745 logpal.palNumEntries = 2;
746 logpal.palPalEntry[0].peRed =
747 logpal.palPalEntry[0].peGreen =
748 logpal.palPalEntry[0].peBlue = 0x00;
749 logpal.palPalEntry[0].peFlags = 0x00;
750 logpal.palPalEntry[1].peRed =
751 logpal.palPalEntry[1].peGreen =
752 logpal.palPalEntry[1].peBlue = 0xFF;
753 logpal.palPalEntry[1].peFlags = 0x00;
754 if ((hpal = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
755 WIN32_API_FAILED ("CreatePalette");
757 SelectPalette (data->xgc, hpal, FALSE);
758 RealizePalette (data->xgc);
759 fg = PALETTEINDEX (data->foreground);
761 else if (colormap_private->xcolormap->rc_palette)
764 if (SelectPalette (data->xgc, colormap_private->xcolormap->palette,
766 WIN32_API_FAILED ("SelectPalette");
767 if (TRUE || colormap_private->xcolormap->stale)
769 if ((k = RealizePalette (data->xgc)) == GDI_ERROR)
770 WIN32_API_FAILED ("RealizePalette");
771 colormap_private->xcolormap->stale = FALSE;
774 g_print ("Selected palette %#x for gc %#x, realized %d colors\n",
775 colormap_private->xcolormap->palette, data->xgc, k);
777 fg = PALETTEINDEX (data->foreground);
781 visual = colormap_private->base.visual;
782 r = (data->foreground & visual->red_mask) >> visual->red_shift;
783 r = (r * 255) / mask[visual->red_prec];
784 g = (data->foreground & visual->green_mask) >> visual->green_shift;
785 g = (g * 255) / mask[visual->green_prec];
786 b = (data->foreground & visual->blue_mask) >> visual->blue_shift;
787 b = (b * 255) / mask[visual->blue_prec];
789 fg = GetNearestColor (data->xgc, RGB (r, g, b));
792 if (SetTextColor (data->xgc, fg) == CLR_INVALID)
793 WIN32_API_FAILED ("SetTextColor");
795 /* Create and select pen and brush. */
797 logbrush.lbStyle = BS_SOLID;
798 logbrush.lbColor = fg;
800 if ((hpen = ExtCreatePen (data->pen_style, data->pen_width,
801 &logbrush, 0, NULL)) == NULL)
802 WIN32_API_FAILED ("ExtCreatePen");
804 if (SelectObject (data->xgc, hpen) == NULL)
805 WIN32_API_FAILED ("SelectObject #2");
807 switch (data->fill_style)
809 case GDK_OPAQUE_STIPPLED:
810 if ((hbr = CreatePatternBrush (GDK_DRAWABLE_XID (data->stipple))) == NULL)
811 WIN32_API_FAILED ("CreatePatternBrush");
813 SetBrushOrgEx(data->xgc, data->ts_x_origin,
814 data->ts_y_origin, NULL);
820 if ((hbr = CreateSolidBrush (fg)) == NULL)
821 WIN32_API_FAILED ("CreateSolidBrush");
824 if (SelectObject (data->xgc, hbr) == NULL)
825 WIN32_API_FAILED ("SelectObject #3");
829 predraw_set_background (GdkGCWin32Data *data,
830 GdkColormapPrivateWin32 *colormap_private)
836 if (colormap_private == NULL)
839 bg = PALETTEINDEX (data->background);
841 else if (colormap_private->xcolormap->rc_palette)
843 bg = PALETTEINDEX (data->background);
847 visual = colormap_private->base.visual;
848 r = (data->background & visual->red_mask) >> visual->red_shift;
849 r = (r * 255) / mask[visual->red_prec];
850 g = (data->background & visual->green_mask) >> visual->green_shift;
851 g = (g * 255) / mask[visual->green_prec];
852 b = (data->background & visual->blue_mask) >> visual->blue_shift;
853 b = (b * 255) / mask[visual->green_prec];
855 bg = GetNearestColor (data->xgc, RGB (r, g, b));
857 if (SetBkColor (data->xgc, bg) == CLR_INVALID)
858 WIN32_API_FAILED ("SetBkColor");
863 gdk_gc_predraw (GdkDrawable *drawable,
864 GdkGCPrivate *gc_private,
865 GdkGCValuesMask usage)
867 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
868 GdkColormapPrivateWin32 *colormap_private =
869 (GdkColormapPrivateWin32 *) drawable_private->colormap;
870 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
872 g_assert (data->xgc == NULL);
874 data->hwnd = GDK_DRAWABLE_XID (drawable);
876 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
878 if ((data->xgc = CreateCompatibleDC (NULL)) == NULL)
879 WIN32_API_FAILED ("CreateCompatibleDC");
881 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
882 WIN32_API_FAILED ("SaveDC #1");
884 if (SelectObject (data->xgc, data->hwnd) == NULL)
885 WIN32_API_FAILED ("SelectObject #1");
889 if ((data->xgc = GetDC (data->hwnd)) == NULL)
890 WIN32_API_FAILED ("GetDC");
892 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
893 WIN32_API_FAILED ("SaveDC #2");
896 if (usage & GDK_GC_FOREGROUND)
897 predraw_set_foreground (data, colormap_private);
899 if ((usage & GDK_GC_BACKGROUND) && (data->values_mask & GDK_GC_BACKGROUND))
900 predraw_set_background (data, colormap_private);
902 if (usage & GDK_GC_FONT)
904 if (SetBkMode (data->xgc, TRANSPARENT) == 0)
905 WIN32_API_FAILED ("SetBkMode");
907 if (SetTextAlign (data->xgc, TA_BASELINE) == GDI_ERROR)
908 WIN32_API_FAILED ("SetTextAlign");
911 if (data->values_mask & GDK_GC_FUNCTION)
912 if (SetROP2 (data->xgc, data->rop2) == 0)
913 WIN32_API_FAILED ("SetROP2");
915 if (data->values_mask & GDK_GC_CLIP_MASK
916 && data->clip_region != NULL)
918 if (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
919 OffsetRgn (data->clip_region,
920 data->clip_x_origin, data->clip_y_origin);
921 SelectClipRgn (data->xgc, data->clip_region);
928 gdk_gc_postdraw (GdkDrawable *drawable,
929 GdkGCPrivate *gc_private,
930 GdkGCValuesMask usage)
932 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
933 GdkColormapPrivateWin32 *colormap_private =
934 (GdkColormapPrivateWin32 *) drawable_private->colormap;
935 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
939 if (usage & GDK_GC_FOREGROUND)
941 if ((hpen = GetCurrentObject (data->xgc, OBJ_PEN)) == NULL)
942 WIN32_API_FAILED ("GetCurrentObject #1");
944 if ((hbr = GetCurrentObject (data->xgc, OBJ_BRUSH)) == NULL)
945 WIN32_API_FAILED ("GetCurrentObject #2");
948 if (!RestoreDC (data->xgc, data->saved_dc))
949 WIN32_API_FAILED ("RestoreDC");
951 if (colormap_private != NULL
952 && colormap_private->xcolormap->rc_palette
953 && colormap_private->xcolormap->stale)
955 SelectPalette (data->xgc, GetStockObject (DEFAULT_PALETTE), FALSE);
956 if (!UnrealizeObject (colormap_private->xcolormap->palette))
957 WIN32_API_FAILED ("UnrealizeObject");
960 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
962 if (!DeleteDC (data->xgc))
963 WIN32_API_FAILED ("DeleteDC");
967 ReleaseDC (data->hwnd, data->xgc);
971 if (!DeleteObject (hpen))
972 WIN32_API_FAILED ("DeleteObject #1");
975 if (!DeleteObject (hbr))
976 WIN32_API_FAILED ("DeleteObject #2");
978 if (data->values_mask & GDK_GC_CLIP_MASK
979 && data->clip_region != NULL
980 && (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN)))
981 OffsetRgn (data->clip_region,
982 -data->clip_x_origin, -data->clip_y_origin);
986 /* This function originally from Jean-Edouard Lachand-Robert, and
987 * available at www.codeguru.com. Simplified for our needs, now
988 * handles just one-bit deep bitmaps (in Window parlance, ie those
989 * that GDK calls bitmaps (and not pixmaps), with zero pixels being
994 * BitmapToRegion : Create a region from the "non-transparent" pixels of
996 * Author : Jean-Edouard Lachand-Robert
997 * (http://www.geocities.com/Paris/LeftBank/1160/resume.htm), June 1998.
1001 BitmapToRegion (HBITMAP hBmp)
1009 BITMAPINFOHEADER bmiHeader;
1013 RGBQUAD bmiColors[2];
1022 PALETTEENTRY palPalEntry[2];
1024 static HPALETTE bwPalette = NULL;
1037 /* Create a B&W palette */
1038 if (bwPalette == NULL)
1040 /* Create a b&w palette */
1041 logpal.palVersion = 0x300;
1042 logpal.palNumEntries = 2;
1043 logpal.palPalEntry[0].peRed =
1044 logpal.palPalEntry[0].peGreen =
1045 logpal.palPalEntry[0].peBlue = 0;
1046 logpal.palPalEntry[0].peFlags = 0;
1047 logpal.palPalEntry[1].peRed =
1048 logpal.palPalEntry[1].peGreen =
1049 logpal.palPalEntry[1].peBlue = 0xFF;
1050 logpal.palPalEntry[1].peFlags = 0;
1051 if ((bwPalette = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
1052 WIN32_API_FAILED ("CreatePalette");
1055 /* Create a memory DC inside which we will scan the bitmap content */
1056 hMemDC = CreateCompatibleDC (NULL);
1059 WIN32_API_FAILED ("CreateCompatibleDC #1");
1063 SelectPalette (hMemDC, bwPalette, FALSE);
1064 RealizePalette (hMemDC);
1066 /* Get bitmap size */
1067 GetObject(hBmp, sizeof(bm), &bm);
1069 /* Create a 8 bits depth bitmap and select it into the memory DC */
1070 bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
1071 bmi.bmiHeader.biWidth = bm.bmWidth;
1072 bmi.bmiHeader.biHeight = bm.bmHeight;
1073 bmi.bmiHeader.biPlanes = 1;
1074 bmi.bmiHeader.biBitCount = 8;
1075 bmi.bmiHeader.biCompression = BI_RGB;
1076 bmi.bmiHeader.biSizeImage = 0;
1077 bmi.bmiHeader.biXPelsPerMeter = 0;
1078 bmi.bmiHeader.biYPelsPerMeter = 0;
1079 bmi.bmiHeader.biClrUsed = 2;
1080 bmi.bmiHeader.biClrImportant = 2;
1082 bmi.bmiColors[0] = 0;
1083 bmi.bmiColors[1] = 1;
1084 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1085 DIB_PAL_COLORS, &pbits8, NULL, 0);
1087 bmi.bmiColors[0].rgbBlue =
1088 bmi.bmiColors[0].rgbGreen =
1089 bmi.bmiColors[0].rgbRed = 0x00;
1090 bmi.bmiColors[0].rgbReserved = 0x00;
1092 bmi.bmiColors[1].rgbBlue =
1093 bmi.bmiColors[1].rgbGreen =
1094 bmi.bmiColors[1].rgbRed = 0xFF;
1095 bmi.bmiColors[0].rgbReserved = 0x00;
1097 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1098 DIB_RGB_COLORS, &pbits8, NULL, 0);
1102 WIN32_API_FAILED ("CreateDIBSection");
1107 holdBmp = (HBITMAP) SelectObject (hMemDC, hbm8);
1109 /* Create a DC just to copy the bitmap into the memory DC*/
1110 hDC = CreateCompatibleDC (hMemDC);
1113 WIN32_API_FAILED ("CreateCompatibleDC #2");
1114 SelectObject (hMemDC, holdBmp);
1115 DeleteObject (hbm8);
1120 /* Get how many bytes per row we have for the bitmap bits */
1121 GetObject (hbm8, sizeof (bm8), &bm8);
1123 /* Hans Breuer found a fix to the long-standing erroneous behaviour
1124 * on NT 4.0: There seems to be a bug in Win NT 4.0 GDI: scanlines
1125 * in bitmaps are dword aligned on both Win95 and NT. In the case of
1126 * a bitmap with 22 bytes worth of width, GetObject above returns
1127 * with bmWidth == 22. On Win95 bmWidthBytes == 24, as it should be,
1128 * but on NT is it 22. We need to correct this here.
1130 bm8.bmWidthBytes = (((bm8.bmWidthBytes-1)/4)+1)*4; /* dword aligned!! */
1132 /* Copy the bitmap into the memory DC*/
1133 holdBmp2 = (HBITMAP) SelectObject (hDC, hBmp);
1135 if (!BitBlt (hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, hDC, 0, 0, SRCCOPY))
1137 WIN32_API_FAILED ("BitBlt");
1138 SelectObject (hDC, holdBmp2);
1139 SelectObject (hMemDC, holdBmp);
1140 DeleteObject (hbm8);
1144 SelectObject (hDC, holdBmp2);
1147 /* For better performances, we will use the ExtCreateRegion()
1148 * function to create the region. This function take a RGNDATA
1149 * structure on entry. We will add rectangles by amount of
1150 * ALLOC_UNIT number in this structure.
1152 #define ALLOC_UNIT 100
1153 maxRects = ALLOC_UNIT;
1155 pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
1156 pData->rdh.dwSize = sizeof (RGNDATAHEADER);
1157 pData->rdh.iType = RDH_RECTANGLES;
1158 pData->rdh.nCount = pData->rdh.nRgnSize = 0;
1159 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1161 /* Scan each bitmap from bottom to top (the bitmap is inverted vertically)*/
1162 p8 = (BYTE *) pbits8 + (bm8.bmHeight - 1) * bm8.bmWidthBytes;
1163 for (y = 0; y < bm.bmHeight; y++)
1165 /* Scan each bitmap row from left to right*/
1166 for (x = 0; x < bm.bmWidth; x++)
1168 /* Search for a continuous range of "non transparent pixels"*/
1171 while (x < bm.bmWidth)
1174 /* This pixel is "transparent"*/
1183 /* Add the pixels (x0, y) to (x, y+1) as a new rectangle
1186 if (pData->rdh.nCount >= maxRects)
1188 maxRects += ALLOC_UNIT;
1189 pData = g_realloc (pData, sizeof(RGNDATAHEADER)
1190 + (sizeof(RECT) * maxRects));
1192 pr = (RECT *) &pData->Buffer;
1193 SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
1194 if (x0 < pData->rdh.rcBound.left)
1195 pData->rdh.rcBound.left = x0;
1196 if (y < pData->rdh.rcBound.top)
1197 pData->rdh.rcBound.top = y;
1198 if (x > pData->rdh.rcBound.right)
1199 pData->rdh.rcBound.right = x;
1200 if (y+1 > pData->rdh.rcBound.bottom)
1201 pData->rdh.rcBound.bottom = y+1;
1202 pData->rdh.nCount++;
1204 /* On Windows98, ExtCreateRegion() may fail if the
1205 * number of rectangles is too large (ie: >
1206 * 4000). Therefore, we have to create the region by
1209 if (pData->rdh.nCount == 2000)
1211 HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
1214 CombineRgn(hRgn, hRgn, h, RGN_OR);
1219 pData->rdh.nCount = 0;
1220 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1225 /* Go to next row (remember, the bitmap is inverted vertically)*/
1226 p8 -= bm8.bmWidthBytes;
1229 /* Create or extend the region with the remaining rectangles*/
1230 h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
1231 + (sizeof (RECT) * maxRects), pData);
1234 CombineRgn (hRgn, hRgn, h, RGN_OR);
1241 SelectObject(hMemDC, holdBmp);
1242 DeleteObject (hbm8);