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_GDI_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_GDI_FAILED ("CreateCompatibleDC");
536 SelectObject (hdc, GDK_DRAWABLE_XID (pixmap))) == NULL)
537 WIN32_GDI_FAILED ("SelectObject");
538 hbr = GetStockObject (BLACK_BRUSH);
539 if (!FillRect (hdc, &rect, hbr))
540 WIN32_GDI_FAILED ("FillRect");
541 hbr = GetStockObject (WHITE_BRUSH);
542 if (!FillRgn (hdc, data->clip_region, hbr))
543 WIN32_GDI_FAILED ("FillRgn");
544 if (SelectObject (hdc, oldbitmap) == NULL)
545 WIN32_GDI_FAILED ("SelectObject");
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);
603 data->pen_style &= ~(PS_STYLE_MASK);
604 data->pen_style |= PS_DASH;
607 * Set the extended line style. This could be done by
608 * PS_USERSTYLE and ExtCreatePen; but ONLY on WinNT,
609 * so let's make a guess (based on the implementation
610 * in DIA). On Win9x this does only work for lines
613 * More workarounds for Win9x descibed at:
614 * http://www.codeguru.com/gdi/dashed.shtml
616 if (!IS_WIN_NT (windows_version) && data->pen_width > 1)
618 GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_dashes: not fully supported\n"));
619 data->pen_style |= PS_SOLID;
623 /* data->pen_style = PS_COSMETIC; ??? */
626 if ((dash_list[0] == dash_list[1]) && (dash_list[0] > 2))
628 data->pen_style |= PS_DASH;
629 GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASH (%d,%d)\n",
630 dash_list[0], dash_list[1]));
634 data->pen_style |= PS_DOT;
635 GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DOT (%d,%d)\n",
636 dash_list[0], dash_list[1]));
641 data->pen_style |= PS_DASHDOT;
642 GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOT (%d,%d,%d,%d)\n",
643 dash_list[0], dash_list[1],
644 dash_list[2], dash_list[3]));
648 data->pen_style |= PS_DASHDOTDOT;
649 GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOTDOT (%d,%d,%d,%d,%d,%d)\n",
650 dash_list[0], dash_list[1],
651 dash_list[2], dash_list[3],
652 dash_list[4], dash_list[5]));
656 data->pen_style |= PS_DASH;
657 GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: no guess for %d dashes\n", n));
662 gdk_gc_set_clip_rectangle (GdkGC *gc,
663 GdkRectangle *rectangle)
665 GdkGCWin32Data *data;
667 g_return_if_fail (gc != NULL);
669 data = GDK_GC_WIN32DATA (gc);
671 if (data->clip_region != NULL)
672 if (!DeleteObject (data->clip_region))
673 WIN32_GDI_FAILED ("DeleteObject");
677 g_print ("gdk_gc_set_clip_rectangle: (%d) %dx%d@+%d+%d\n",
679 rectangle->width, rectangle->height,
680 rectangle->x, rectangle->y));
681 if ((data->clip_region =
682 CreateRectRgn (rectangle->x, rectangle->y,
683 rectangle->x + rectangle->width,
684 rectangle->y + rectangle->height)) == NULL)
685 WIN32_GDI_FAILED ("CreateRectRgn");
687 data->values_mask |= GDK_GC_CLIP_MASK;
691 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: (%d) NULL\n",
693 data->clip_region = NULL;
694 data->values_mask &= ~GDK_GC_CLIP_MASK;
696 data->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
700 gdk_gc_set_clip_region (GdkGC *gc,
703 GdkGCWin32Data *data;
705 g_return_if_fail (gc != NULL);
707 data = GDK_GC_WIN32DATA (gc);
709 GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: (%d) %s\n",
710 data, (region != NULL ? "xxx" : "None")));
712 if (data->clip_region != NULL)
713 if (!DeleteObject (data->clip_region))
714 WIN32_GDI_FAILED ("DeleteObject");
717 GdkRegionPrivate *region_private;
719 region_private = (GdkRegionPrivate*) region;
720 data->clip_region = CreateRectRgn (1, 1, 0, 0);
721 CombineRgn (data->clip_region, region_private->xregion, NULL, RGN_COPY);
722 data->values_mask |= GDK_GC_CLIP_MASK;
726 data->clip_region = NULL;
727 data->values_mask &= ~GDK_GC_CLIP_MASK;
732 gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
734 GdkGCWin32Data *dst_data = GDK_GC_WIN32DATA (dst_gc);
735 GdkGCWin32Data *src_data = GDK_GC_WIN32DATA (src_gc);
739 if (dst_data->font != NULL)
740 gdk_font_unref (dst_data->font);
741 if (dst_data->tile != NULL)
742 gdk_drawable_unref (dst_data->tile);
743 if (dst_data->stipple != NULL)
744 gdk_drawable_unref (dst_data->stipple);
745 if (dst_data->clip_region != NULL)
746 if (!DeleteObject (dst_data->clip_region))
747 WIN32_GDI_FAILED ("DeleteObject");
749 *dst_data = *src_data;
751 if (dst_data->clip_region != NULL)
753 nbytes = GetRegionData (dst_data->clip_region, 0, NULL);
754 rgn = g_malloc (nbytes);
755 GetRegionData (dst_data->clip_region, nbytes, rgn);
756 if ((dst_data->clip_region = ExtCreateRegion (NULL, nbytes, rgn)) == NULL)
757 WIN32_GDI_FAILED ("ExtCreateRegion");
761 if (dst_data->font != NULL)
762 gdk_font_ref (dst_data->font);
763 if (dst_data->tile != NULL)
764 gdk_drawable_ref (dst_data->tile);
765 if (dst_data->stipple != NULL)
766 gdk_drawable_ref (dst_data->stipple);
769 static guint bitmask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
772 gdk_colormap_color (GdkColormapPrivateWin32 *colormap_private,
778 if (colormap_private == NULL || colormap_private->xcolormap->rc_palette)
779 return PALETTEINDEX (pixel);
782 visual = colormap_private->base.visual;
783 r = (pixel & visual->red_mask) >> visual->red_shift;
784 r = (r * 255) / bitmask[visual->red_prec];
785 g = (pixel & visual->green_mask) >> visual->green_shift;
786 g = (g * 255) / bitmask[visual->green_prec];
787 b = (pixel & visual->blue_mask) >> visual->blue_shift;
788 b = (b * 255) / bitmask[visual->blue_prec];
790 return RGB (r, g, b);
795 predraw_set_foreground (GdkGCWin32Data *data,
796 GdkColormapPrivateWin32 *colormap_private)
803 if (colormap_private == NULL)
805 /* A 1 bit deep bitmap */
810 PALETTEENTRY palPalEntry[2];
812 static HPALETTE hpal = NULL;
816 /* Create a b&w palette */
817 logpal.palVersion = 0x300;
818 logpal.palNumEntries = 2;
819 logpal.palPalEntry[0].peRed =
820 logpal.palPalEntry[0].peGreen =
821 logpal.palPalEntry[0].peBlue = 0x00;
822 logpal.palPalEntry[0].peFlags = 0x00;
823 logpal.palPalEntry[1].peRed =
824 logpal.palPalEntry[1].peGreen =
825 logpal.palPalEntry[1].peBlue = 0xFF;
826 logpal.palPalEntry[1].peFlags = 0x00;
827 if ((hpal = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
828 WIN32_GDI_FAILED ("CreatePalette");
830 SelectPalette (data->xgc, hpal, FALSE);
831 RealizePalette (data->xgc);
832 fg = PALETTEINDEX (data->foreground);
834 else if (colormap_private->xcolormap->rc_palette)
837 if (SelectPalette (data->xgc, colormap_private->xcolormap->palette,
839 WIN32_GDI_FAILED ("SelectPalette");
840 if (TRUE || colormap_private->xcolormap->stale)
842 if ((k = RealizePalette (data->xgc)) == GDI_ERROR)
843 WIN32_GDI_FAILED ("RealizePalette");
844 colormap_private->xcolormap->stale = FALSE;
847 g_print ("Selected palette %#x for gc %#x, realized %d colors\n",
848 colormap_private->xcolormap->palette, data->xgc, k);
852 fg = gdk_colormap_color (colormap_private, data->foreground);
854 if (SetTextColor (data->xgc, fg) == CLR_INVALID)
855 WIN32_GDI_FAILED ("SetTextColor");
857 /* Create and select pen and brush. */
859 logbrush.lbStyle = BS_SOLID;
860 logbrush.lbColor = fg;
862 if ((hpen = ExtCreatePen (data->pen_style, data->pen_width,
863 &logbrush, 0, NULL)) == NULL)
864 WIN32_GDI_FAILED ("ExtCreatePen");
866 if (SelectObject (data->xgc, hpen) == NULL)
867 WIN32_GDI_FAILED ("SelectObject");
869 switch (data->fill_style)
871 case GDK_OPAQUE_STIPPLED:
872 if ((hbr = CreatePatternBrush (GDK_DRAWABLE_XID (data->stipple))) == NULL)
873 WIN32_GDI_FAILED ("CreatePatternBrush");
875 SetBrushOrgEx(data->xgc, data->ts_x_origin,
876 data->ts_y_origin, NULL);
882 if ((hbr = CreateSolidBrush (fg)) == NULL)
883 WIN32_GDI_FAILED ("CreateSolidBrush");
886 if (SelectObject (data->xgc, hbr) == NULL)
887 WIN32_GDI_FAILED ("SelectObject");
891 predraw_set_background (GdkGCWin32Data *data,
892 GdkColormapPrivateWin32 *colormap_private)
894 COLORREF bg = gdk_colormap_color (colormap_private, data->background);
896 if (SetBkColor (data->xgc, bg) == CLR_INVALID)
897 WIN32_GDI_FAILED ("SetBkColor");
901 gdk_gc_predraw (GdkDrawable *drawable,
902 GdkGCPrivate *gc_private,
903 GdkGCValuesMask usage)
905 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
906 GdkColormapPrivateWin32 *colormap_private =
907 (GdkColormapPrivateWin32 *) drawable_private->colormap;
908 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
910 g_assert (data->xgc == NULL);
912 data->hwnd = GDK_DRAWABLE_XID (drawable);
914 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
916 if ((data->xgc = CreateCompatibleDC (NULL)) == NULL)
917 WIN32_GDI_FAILED ("CreateCompatibleDC");
919 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
920 WIN32_GDI_FAILED ("SaveDC");
922 if (SelectObject (data->xgc, data->hwnd) == NULL)
923 WIN32_GDI_FAILED ("SelectObject");
927 if ((data->xgc = GetDC (data->hwnd)) == NULL)
928 WIN32_GDI_FAILED ("GetDC");
930 if ((data->saved_dc = SaveDC (data->xgc)) == 0)
931 WIN32_GDI_FAILED ("SaveDC");
934 if (usage & GDK_GC_FOREGROUND)
935 predraw_set_foreground (data, colormap_private);
937 if ((usage & GDK_GC_BACKGROUND) && (data->values_mask & GDK_GC_BACKGROUND))
938 predraw_set_background (data, colormap_private);
940 if (usage & GDK_GC_FONT)
942 if (SetBkMode (data->xgc, TRANSPARENT) == 0)
943 WIN32_GDI_FAILED ("SetBkMode");
945 if (SetTextAlign (data->xgc, TA_BASELINE) == GDI_ERROR)
946 WIN32_GDI_FAILED ("SetTextAlign");
949 if (data->values_mask & GDK_GC_FUNCTION)
950 if (SetROP2 (data->xgc, data->rop2) == 0)
951 WIN32_GDI_FAILED ("SetROP2");
953 if ((data->values_mask & GDK_GC_CLIP_MASK)
954 && data->clip_region != NULL)
956 if (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
957 OffsetRgn (data->clip_region,
958 data->clip_x_origin, data->clip_y_origin);
959 SelectClipRgn (data->xgc, data->clip_region);
966 gdk_gc_postdraw (GdkDrawable *drawable,
967 GdkGCPrivate *gc_private,
968 GdkGCValuesMask usage)
970 GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
971 GdkColormapPrivateWin32 *colormap_private =
972 (GdkColormapPrivateWin32 *) drawable_private->colormap;
973 GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
977 if (usage & GDK_GC_FOREGROUND)
979 if ((hpen = GetCurrentObject (data->xgc, OBJ_PEN)) == NULL)
980 WIN32_GDI_FAILED ("GetCurrentObject");
982 if ((hbr = GetCurrentObject (data->xgc, OBJ_BRUSH)) == NULL)
983 WIN32_GDI_FAILED ("GetCurrentObject");
986 if (!RestoreDC (data->xgc, data->saved_dc))
987 WIN32_GDI_FAILED ("RestoreDC");
989 if (colormap_private != NULL
990 && colormap_private->xcolormap->rc_palette
991 && colormap_private->xcolormap->stale)
993 SelectPalette (data->xgc, GetStockObject (DEFAULT_PALETTE), FALSE);
994 if (!UnrealizeObject (colormap_private->xcolormap->palette))
995 WIN32_GDI_FAILED ("UnrealizeObject");
998 if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
1000 if (!DeleteDC (data->xgc))
1001 WIN32_GDI_FAILED ("DeleteDC");
1005 ReleaseDC (data->hwnd, data->xgc);
1009 if (!DeleteObject (hpen))
1010 WIN32_GDI_FAILED ("DeleteObject");
1013 if (!DeleteObject (hbr))
1014 WIN32_GDI_FAILED ("DeleteObject");
1016 if ((data->values_mask & GDK_GC_CLIP_MASK)
1017 && data->clip_region != NULL
1018 && (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN)))
1019 OffsetRgn (data->clip_region,
1020 -data->clip_x_origin, -data->clip_y_origin);
1024 /* This function originally from Jean-Edouard Lachand-Robert, and
1025 * available at www.codeguru.com. Simplified for our needs, now
1026 * handles just one-bit deep bitmaps (in Window parlance, ie those
1027 * that GDK calls bitmaps (and not pixmaps), with zero pixels being
1032 * BitmapToRegion : Create a region from the "non-transparent" pixels of
1034 * Author : Jean-Edouard Lachand-Robert
1035 * (http://www.geocities.com/Paris/LeftBank/1160/resume.htm), June 1998.
1039 BitmapToRegion (HBITMAP hBmp)
1047 BITMAPINFOHEADER bmiHeader;
1051 RGBQUAD bmiColors[2];
1060 PALETTEENTRY palPalEntry[2];
1062 static HPALETTE bwPalette = NULL;
1075 /* Create a B&W palette */
1076 if (bwPalette == NULL)
1078 /* Create a b&w palette */
1079 logpal.palVersion = 0x300;
1080 logpal.palNumEntries = 2;
1081 logpal.palPalEntry[0].peRed =
1082 logpal.palPalEntry[0].peGreen =
1083 logpal.palPalEntry[0].peBlue = 0;
1084 logpal.palPalEntry[0].peFlags = 0;
1085 logpal.palPalEntry[1].peRed =
1086 logpal.palPalEntry[1].peGreen =
1087 logpal.palPalEntry[1].peBlue = 0xFF;
1088 logpal.palPalEntry[1].peFlags = 0;
1089 if ((bwPalette = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
1090 WIN32_GDI_FAILED ("CreatePalette");
1093 /* Create a memory DC inside which we will scan the bitmap content */
1094 hMemDC = CreateCompatibleDC (NULL);
1097 WIN32_GDI_FAILED ("CreateCompatibleDC");
1101 SelectPalette (hMemDC, bwPalette, FALSE);
1102 RealizePalette (hMemDC);
1104 /* Get bitmap size */
1105 GetObject(hBmp, sizeof(bm), &bm);
1107 /* Create a 8 bits depth bitmap and select it into the memory DC */
1108 bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
1109 bmi.bmiHeader.biWidth = bm.bmWidth;
1110 bmi.bmiHeader.biHeight = bm.bmHeight;
1111 bmi.bmiHeader.biPlanes = 1;
1112 bmi.bmiHeader.biBitCount = 8;
1113 bmi.bmiHeader.biCompression = BI_RGB;
1114 bmi.bmiHeader.biSizeImage = 0;
1115 bmi.bmiHeader.biXPelsPerMeter = 0;
1116 bmi.bmiHeader.biYPelsPerMeter = 0;
1117 bmi.bmiHeader.biClrUsed = 2;
1118 bmi.bmiHeader.biClrImportant = 2;
1120 bmi.bmiColors[0] = 0;
1121 bmi.bmiColors[1] = 1;
1122 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1123 DIB_PAL_COLORS, &pbits8, NULL, 0);
1125 bmi.bmiColors[0].rgbBlue =
1126 bmi.bmiColors[0].rgbGreen =
1127 bmi.bmiColors[0].rgbRed = 0x00;
1128 bmi.bmiColors[0].rgbReserved = 0x00;
1130 bmi.bmiColors[1].rgbBlue =
1131 bmi.bmiColors[1].rgbGreen =
1132 bmi.bmiColors[1].rgbRed = 0xFF;
1133 bmi.bmiColors[0].rgbReserved = 0x00;
1135 hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
1136 DIB_RGB_COLORS, &pbits8, NULL, 0);
1140 WIN32_GDI_FAILED ("CreateDIBSection");
1145 holdBmp = (HBITMAP) SelectObject (hMemDC, hbm8);
1147 /* Create a DC just to copy the bitmap into the memory DC*/
1148 hDC = CreateCompatibleDC (hMemDC);
1151 WIN32_GDI_FAILED ("CreateCompatibleDC #2");
1152 SelectObject (hMemDC, holdBmp);
1153 DeleteObject (hbm8);
1158 /* Get how many bytes per row we have for the bitmap bits */
1159 GetObject (hbm8, sizeof (bm8), &bm8);
1161 /* Hans Breuer found a fix to the long-standing erroneous behaviour
1162 * on NT 4.0: There seems to be a bug in Win NT 4.0 GDI: scanlines
1163 * in bitmaps are dword aligned on both Win95 and NT. In the case of
1164 * a bitmap with 22 bytes worth of width, GetObject above returns
1165 * with bmWidth == 22. On Win95 bmWidthBytes == 24, as it should be,
1166 * but on NT is it 22. We need to correct this here.
1168 bm8.bmWidthBytes = (((bm8.bmWidthBytes-1)/4)+1)*4; /* dword aligned!! */
1170 /* Copy the bitmap into the memory DC*/
1171 holdBmp2 = (HBITMAP) SelectObject (hDC, hBmp);
1173 if (!BitBlt (hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, hDC, 0, 0, SRCCOPY))
1175 WIN32_GDI_FAILED ("BitBlt");
1176 SelectObject (hDC, holdBmp2);
1177 SelectObject (hMemDC, holdBmp);
1178 DeleteObject (hbm8);
1182 SelectObject (hDC, holdBmp2);
1185 /* For better performances, we will use the ExtCreateRegion()
1186 * function to create the region. This function take a RGNDATA
1187 * structure on entry. We will add rectangles by amount of
1188 * ALLOC_UNIT number in this structure.
1190 #define ALLOC_UNIT 100
1191 maxRects = ALLOC_UNIT;
1193 pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
1194 pData->rdh.dwSize = sizeof (RGNDATAHEADER);
1195 pData->rdh.iType = RDH_RECTANGLES;
1196 pData->rdh.nCount = pData->rdh.nRgnSize = 0;
1197 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1199 /* Scan each bitmap from bottom to top (the bitmap is inverted vertically)*/
1200 p8 = (BYTE *) pbits8 + (bm8.bmHeight - 1) * bm8.bmWidthBytes;
1201 for (y = 0; y < bm.bmHeight; y++)
1203 /* Scan each bitmap row from left to right*/
1204 for (x = 0; x < bm.bmWidth; x++)
1206 /* Search for a continuous range of "non transparent pixels"*/
1209 while (x < bm.bmWidth)
1212 /* This pixel is "transparent"*/
1221 /* Add the pixels (x0, y) to (x, y+1) as a new rectangle
1224 if (pData->rdh.nCount >= maxRects)
1226 maxRects += ALLOC_UNIT;
1227 pData = g_realloc (pData, sizeof(RGNDATAHEADER)
1228 + (sizeof(RECT) * maxRects));
1230 pr = (RECT *) &pData->Buffer;
1231 SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
1232 if (x0 < pData->rdh.rcBound.left)
1233 pData->rdh.rcBound.left = x0;
1234 if (y < pData->rdh.rcBound.top)
1235 pData->rdh.rcBound.top = y;
1236 if (x > pData->rdh.rcBound.right)
1237 pData->rdh.rcBound.right = x;
1238 if (y+1 > pData->rdh.rcBound.bottom)
1239 pData->rdh.rcBound.bottom = y+1;
1240 pData->rdh.nCount++;
1242 /* On Windows98, ExtCreateRegion() may fail if the
1243 * number of rectangles is too large (ie: >
1244 * 4000). Therefore, we have to create the region by
1247 if (pData->rdh.nCount == 2000)
1249 HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
1252 CombineRgn(hRgn, hRgn, h, RGN_OR);
1257 pData->rdh.nCount = 0;
1258 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1263 /* Go to next row (remember, the bitmap is inverted vertically)*/
1264 p8 -= bm8.bmWidthBytes;
1267 /* Create or extend the region with the remaining rectangles*/
1268 h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
1269 + (sizeof (RECT) * maxRects), pData);
1272 CombineRgn (hRgn, hRgn, h, RGN_OR);
1279 SelectObject(hMemDC, holdBmp);
1280 DeleteObject (hbm8);