1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
3 * Copyright (C) 1998-2002 Tor Lillqvist
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
22 * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
23 * file for a list of people on the GTK+ Team. See the ChangeLog
24 * files for a list of changes. These files are distributed with
25 * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
28 #define LINE_ATTRIBUTES (GDK_GC_LINE_WIDTH|GDK_GC_LINE_STYLE| \
29 GDK_GC_CAP_STYLE|GDK_GC_JOIN_STYLE)
36 #include "gdkpixmap.h"
37 #include "gdkregion-generic.h"
38 #include "gdkprivate-win32.h"
40 static void gdk_win32_gc_get_values (GdkGC *gc,
42 static void gdk_win32_gc_set_values (GdkGC *gc,
44 GdkGCValuesMask values_mask);
45 static void gdk_win32_gc_set_dashes (GdkGC *gc,
50 static void gdk_gc_win32_class_init (GdkGCWin32Class *klass);
51 static void gdk_gc_win32_finalize (GObject *object);
53 static gpointer parent_class = NULL;
56 _gdk_gc_win32_get_type (void)
58 static GType object_type = 0;
62 static const GTypeInfo object_info =
64 sizeof (GdkGCWin32Class),
66 (GBaseFinalizeFunc) NULL,
67 (GClassInitFunc) gdk_gc_win32_class_init,
68 NULL, /* class_finalize */
69 NULL, /* class_data */
72 (GInstanceInitFunc) NULL,
75 object_type = g_type_register_static (GDK_TYPE_GC,
84 gdk_gc_win32_class_init (GdkGCWin32Class *klass)
86 GObjectClass *object_class = G_OBJECT_CLASS (klass);
87 GdkGCClass *gc_class = GDK_GC_CLASS (klass);
89 parent_class = g_type_class_peek_parent (klass);
91 object_class->finalize = gdk_gc_win32_finalize;
93 gc_class->get_values = gdk_win32_gc_get_values;
94 gc_class->set_values = gdk_win32_gc_set_values;
95 gc_class->set_dashes = gdk_win32_gc_set_dashes;
99 gdk_gc_win32_finalize (GObject *object)
101 GdkGCWin32 *win32_gc = GDK_GC_WIN32 (object);
103 if (win32_gc->hcliprgn != NULL)
104 DeleteObject (win32_gc->hcliprgn);
106 if (win32_gc->values_mask & GDK_GC_FONT)
107 gdk_font_unref (win32_gc->font);
109 if (win32_gc->values_mask & GDK_GC_TILE)
110 g_object_unref (win32_gc->tile);
112 if (win32_gc->values_mask & GDK_GC_STIPPLE)
113 g_object_unref (win32_gc->stipple);
115 if (win32_gc->pen_dashes)
116 g_free (win32_gc->pen_dashes);
118 G_OBJECT_CLASS (parent_class)->finalize (object);
122 gdk_win32_gc_values_to_win32values (GdkGCValues *values,
123 GdkGCValuesMask mask,
124 GdkGCWin32 *win32_gc)
129 GDK_NOTE (GC, g_print ("{"));
131 if (mask & GDK_GC_FOREGROUND)
133 win32_gc->foreground = values->foreground.pixel;
134 win32_gc->values_mask |= GDK_GC_FOREGROUND;
135 GDK_NOTE (GC, (g_print ("fg=%.06lx", win32_gc->foreground),
139 if (mask & GDK_GC_BACKGROUND)
141 win32_gc->background = values->background.pixel;
142 win32_gc->values_mask |= GDK_GC_BACKGROUND;
143 GDK_NOTE (GC, (g_print ("%sbg=%.06lx", s, win32_gc->background),
147 if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT
148 || values->font->type == GDK_FONT_FONTSET))
150 if (win32_gc->font != NULL)
151 gdk_font_unref (win32_gc->font);
152 win32_gc->font = values->font;
153 if (win32_gc->font != NULL)
155 gdk_font_ref (win32_gc->font);
156 win32_gc->values_mask |= GDK_GC_FONT;
157 GDK_NOTE (GC, (g_print ("%sfont=%p", s, win32_gc->font),
162 win32_gc->values_mask &= ~GDK_GC_FONT;
163 GDK_NOTE (GC, (g_print ("%sfont=NULL", s),
168 if (mask & GDK_GC_FUNCTION)
170 GDK_NOTE (GC, (g_print ("%srop2=", s),
172 switch (values->function)
174 #define CASE(x,y) case GDK_##x: win32_gc->rop2 = R2_##y; GDK_NOTE (GC, g_print (#y)); break
175 CASE (COPY, COPYPEN);
180 CASE (AND_REVERSE, MASKPENNOT);
181 CASE (AND_INVERT, MASKNOTPEN);
184 CASE (EQUIV, NOTXORPEN);
185 CASE (OR_REVERSE, MERGEPENNOT);
186 CASE (COPY_INVERT, NOTCOPYPEN);
187 CASE (OR_INVERT, MERGENOTPEN);
188 CASE (NAND, NOTMASKPEN);
189 CASE (NOR, NOTMERGEPEN);
193 win32_gc->values_mask |= GDK_GC_FUNCTION;
196 if (mask & GDK_GC_FILL)
198 win32_gc->fill_style = values->fill;
199 win32_gc->values_mask |= GDK_GC_FILL;
200 GDK_NOTE (GC, (g_print ("%sfill=%s", s,
201 _gdk_win32_fill_style_to_string (win32_gc->fill_style)),
205 if (mask & GDK_GC_TILE)
207 if (win32_gc->tile != NULL)
208 g_object_unref (win32_gc->tile);
209 win32_gc->tile = values->tile;
210 if (win32_gc->tile != NULL)
212 g_object_ref (win32_gc->tile);
213 win32_gc->values_mask |= GDK_GC_TILE;
215 (g_print ("%stile=%p", s,
216 GDK_PIXMAP_HBITMAP (win32_gc->tile)),
221 win32_gc->values_mask &= ~GDK_GC_TILE;
222 GDK_NOTE (GC, (g_print ("%stile=NULL", s),
227 if (mask & GDK_GC_STIPPLE)
229 if (win32_gc->stipple != NULL)
230 g_object_unref (win32_gc->stipple);
231 win32_gc->stipple = values->stipple;
232 if (win32_gc->stipple != NULL)
234 gdk_drawable_get_size (win32_gc->stipple, &sw, &sh);
236 #if 0 /* HB: this size limitation is disabled to make radio and check
237 * buttons work. I got the impression from the API docs, that
238 * it shouldn't be necessary at all, but win9x would do the clipping
240 if ( (sw != 8 || sh != 8)
241 && !IS_WIN_NT ()) /* HB: the MSDN says it's a Win95 limitation */
243 /* It seems that it *must* be 8x8, at least on my machine.
244 * Thus, tile an 8x8 bitmap with the stipple in case it is
245 * smaller, or simply use just the top left 8x8 in case it is
249 GdkPixmap *bm = gdk_bitmap_create_from_data (NULL, dummy, 8, 8);
250 GdkGC *gc = gdk_gc_new (bm);
259 gdk_draw_drawable (bm, gc, win32_gc->stipple, 0, 0, i, j, sw, sh);
264 win32_gc->stipple = bm;
269 g_object_ref (win32_gc->stipple);
270 win32_gc->values_mask |= GDK_GC_STIPPLE;
272 (g_print ("%sstipple=%p", s,
273 GDK_PIXMAP_HBITMAP (win32_gc->stipple)),
278 win32_gc->values_mask &= ~GDK_GC_STIPPLE;
279 GDK_NOTE (GC, (g_print ("%sstipple=NULL", s),
284 if (mask & GDK_GC_CLIP_MASK)
286 if (win32_gc->hcliprgn != NULL)
287 DeleteObject (win32_gc->hcliprgn);
289 if (values->clip_mask != NULL)
291 win32_gc->hcliprgn = _gdk_win32_bitmap_to_hrgn (values->clip_mask);
292 win32_gc->values_mask |= GDK_GC_CLIP_MASK;
296 win32_gc->hcliprgn = NULL;
297 win32_gc->values_mask &= ~GDK_GC_CLIP_MASK;
299 GDK_NOTE (GC, (g_print ("%sclip=%p", s, win32_gc->hcliprgn),
303 if (mask & GDK_GC_SUBWINDOW)
305 win32_gc->subwindow_mode = values->subwindow_mode;
306 win32_gc->values_mask |= GDK_GC_SUBWINDOW;
307 GDK_NOTE (GC, (g_print ("%ssubw=%d", s, win32_gc->subwindow_mode),
311 if (mask & GDK_GC_TS_X_ORIGIN)
313 win32_gc->values_mask |= GDK_GC_TS_X_ORIGIN;
314 GDK_NOTE (GC, (g_print ("%sts_x=%d", s, values->ts_x_origin),
318 if (mask & GDK_GC_TS_Y_ORIGIN)
320 win32_gc->values_mask |= GDK_GC_TS_Y_ORIGIN;
321 GDK_NOTE (GC, (g_print ("%sts_y=%d", s, values->ts_y_origin),
325 if (mask & GDK_GC_CLIP_X_ORIGIN)
327 win32_gc->values_mask |= GDK_GC_CLIP_X_ORIGIN;
328 GDK_NOTE (GC, (g_print ("%sclip_x=%d", s, values->clip_x_origin),
332 if (mask & GDK_GC_CLIP_Y_ORIGIN)
334 win32_gc->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
335 GDK_NOTE (GC, (g_print ("%sclip_y=%d", s, values->clip_y_origin),
339 if (mask & GDK_GC_EXPOSURES)
341 win32_gc->graphics_exposures = values->graphics_exposures;
342 win32_gc->values_mask |= GDK_GC_EXPOSURES;
343 GDK_NOTE (GC, (g_print ("%sexp=%d", s, win32_gc->graphics_exposures),
347 if (mask & GDK_GC_LINE_WIDTH)
349 win32_gc->pen_width = values->line_width;
350 win32_gc->values_mask |= GDK_GC_LINE_WIDTH;
351 GDK_NOTE (GC, (g_print ("%spw=%d", s, win32_gc->pen_width),
355 if (mask & GDK_GC_LINE_STYLE)
357 switch (values->line_style)
360 if (win32_gc->pen_dashes)
362 g_free (win32_gc->pen_dashes);
363 win32_gc->pen_dashes = NULL;
364 win32_gc->pen_num_dashes = 0;
366 win32_gc->pen_style &= ~(PS_STYLE_MASK);
367 win32_gc->pen_style |= PS_SOLID;
369 case GDK_LINE_ON_OFF_DASH:
370 case GDK_LINE_DOUBLE_DASH:
371 if (!win32_gc->pen_dashes)
373 /* setting to PS_DASH probably isn't correct. If I understand the
374 * xlib docs correctly it should influence the handling of
375 * line endings ? --hb
377 win32_gc->pen_style &= ~(PS_STYLE_MASK);
378 win32_gc->pen_style |= PS_DASH;
382 GDK_NOTE (GC, (g_print ("%sps|=PS_STYLE_%s", s, _gdk_win32_psstyle_to_string (win32_gc->pen_style)),
384 win32_gc->values_mask |= GDK_GC_LINE_STYLE;
387 if (mask & GDK_GC_CAP_STYLE)
389 win32_gc->pen_style &= ~(PS_ENDCAP_MASK);
390 switch (values->cap_style)
392 case GDK_CAP_NOT_LAST: /* ??? */
394 win32_gc->pen_style |= PS_ENDCAP_FLAT;
397 win32_gc->pen_style |= PS_ENDCAP_ROUND;
399 case GDK_CAP_PROJECTING:
400 win32_gc->pen_style |= PS_ENDCAP_SQUARE;
403 GDK_NOTE (GC, (g_print ("%sps|=PS_ENDCAP_%s", s, _gdk_win32_psendcap_to_string (win32_gc->pen_style)),
405 win32_gc->values_mask |= GDK_GC_CAP_STYLE;
408 if (mask & GDK_GC_JOIN_STYLE)
410 win32_gc->pen_style &= ~(PS_JOIN_MASK);
411 switch (values->join_style)
414 win32_gc->pen_style |= PS_JOIN_MITER;
417 win32_gc->pen_style |= PS_JOIN_ROUND;
420 win32_gc->pen_style |= PS_JOIN_BEVEL;
423 GDK_NOTE (GC, (g_print ("%sps|=PS_JOIN_%s", s, _gdk_win32_psjoin_to_string (win32_gc->pen_style)),
425 win32_gc->values_mask |= GDK_GC_JOIN_STYLE;
427 GDK_NOTE (GC, g_print ("} mask=(%s)", _gdk_win32_gcvalues_mask_to_string (win32_gc->values_mask)));
431 _gdk_win32_gc_new (GdkDrawable *drawable,
433 GdkGCValuesMask mask)
436 GdkGCWin32 *win32_gc;
438 /* NOTICE that the drawable here has to be the impl drawable,
439 * not the publically-visible drawables.
441 g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable), NULL);
443 gc = g_object_new (_gdk_gc_win32_get_type (), NULL);
444 win32_gc = GDK_GC_WIN32 (gc);
446 win32_gc->hcliprgn = NULL;
448 /* Use the same default values as X11 does, even if they don't make
449 * sense per se. But apps always set fg and bg anyway.
451 win32_gc->foreground = 0;
452 win32_gc->background = 1;
453 win32_gc->font = NULL;
454 win32_gc->rop2 = R2_COPYPEN;
455 win32_gc->fill_style = GDK_SOLID;
456 win32_gc->tile = NULL;
457 win32_gc->stipple = NULL;
458 win32_gc->subwindow_mode = GDK_CLIP_BY_CHILDREN;
459 win32_gc->graphics_exposures = TRUE;
460 win32_gc->pen_width = 0;
461 win32_gc->pen_style = PS_GEOMETRIC|PS_ENDCAP_FLAT|PS_JOIN_MITER;
462 win32_gc->pen_dashes = NULL;
463 win32_gc->pen_num_dashes = 0;
465 win32_gc->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL;
467 GDK_NOTE (GC, g_print ("_gdk_win32_gc_new: %p: ", win32_gc));
468 gdk_win32_gc_values_to_win32values (values, mask, win32_gc);
469 GDK_NOTE (GC, g_print ("\n"));
471 win32_gc->hdc = NULL;
472 win32_gc->hwnd = NULL;
478 gdk_win32_gc_get_values (GdkGC *gc,
481 GdkGCWin32 *win32_gc = GDK_GC_WIN32 (gc);
483 values->foreground.pixel = win32_gc->foreground;
484 values->background.pixel = win32_gc->background;
485 values->font = win32_gc->font;
487 switch (win32_gc->rop2)
490 values->function = GDK_COPY; break;
492 values->function = GDK_INVERT; break;
494 values->function = GDK_XOR; break;
496 values->function = GDK_CLEAR; break;
498 values->function = GDK_AND; break;
500 values->function = GDK_AND_REVERSE; break;
502 values->function = GDK_AND_INVERT; break;
504 values->function = GDK_NOOP; break;
506 values->function = GDK_OR; break;
508 values->function = GDK_EQUIV; break;
510 values->function = GDK_OR_REVERSE; break;
512 values->function = GDK_COPY_INVERT; break;
514 values->function = GDK_OR_INVERT; break;
516 values->function = GDK_NAND; break;
518 values->function = GDK_NOR; break;
520 values->function = GDK_SET; break;
523 values->fill = win32_gc->fill_style;
525 values->tile = win32_gc->tile;
526 values->stipple = win32_gc->stipple;
528 /* Also the X11 backend always returns a NULL clip_mask */
529 values->clip_mask = NULL;
531 values->subwindow_mode = win32_gc->subwindow_mode;
532 values->ts_x_origin = win32_gc->parent_instance.ts_x_origin;
533 values->ts_y_origin = win32_gc->parent_instance.ts_y_origin;
534 values->clip_x_origin = win32_gc->parent_instance.clip_x_origin;
535 values->clip_y_origin = win32_gc->parent_instance.clip_y_origin;
536 values->graphics_exposures = win32_gc->graphics_exposures;
537 values->line_width = win32_gc->pen_width;
539 if (win32_gc->pen_style & PS_SOLID)
540 values->line_style = GDK_LINE_SOLID;
541 else if (win32_gc->pen_style & PS_DASH)
542 values->line_style = GDK_LINE_ON_OFF_DASH;
544 values->line_style = GDK_LINE_SOLID;
546 /* PS_ENDCAP_ROUND is zero */
547 if (win32_gc->pen_style & PS_ENDCAP_FLAT)
548 values->cap_style = GDK_CAP_BUTT;
549 else if (win32_gc->pen_style & PS_ENDCAP_SQUARE)
550 values->cap_style = GDK_CAP_PROJECTING;
552 values->cap_style = GDK_CAP_ROUND;
554 /* PS_JOIN_ROUND is zero */
555 if (win32_gc->pen_style & PS_JOIN_MITER)
556 values->join_style = GDK_JOIN_MITER;
557 else if (win32_gc->pen_style & PS_JOIN_BEVEL)
558 values->join_style = GDK_JOIN_BEVEL;
560 values->join_style = GDK_JOIN_ROUND;
564 gdk_win32_gc_set_values (GdkGC *gc,
566 GdkGCValuesMask mask)
568 g_return_if_fail (GDK_IS_GC (gc));
570 GDK_NOTE (GC, g_print ("gdk_win32_gc_set_values: %p: ", GDK_GC_WIN32 (gc)));
571 gdk_win32_gc_values_to_win32values (values, mask, GDK_GC_WIN32 (gc));
572 GDK_NOTE (GC, g_print ("\n"));
576 gdk_win32_gc_set_dashes (GdkGC *gc,
581 GdkGCWin32 *win32_gc;
584 g_return_if_fail (GDK_IS_GC (gc));
585 g_return_if_fail (dash_list != NULL);
587 win32_gc = GDK_GC_WIN32 (gc);
589 /* mark as set, see gdk_win32_gc_values_to_win32values () for the reason */
590 win32_gc->values_mask |= GDK_GC_LINE_STYLE;
592 win32_gc->pen_style &= ~(PS_STYLE_MASK);
594 win32_gc->pen_style |= (PS_GEOMETRIC | PS_USERSTYLE);
595 win32_gc->pen_num_dashes = n;
596 if (win32_gc->pen_dashes != NULL)
597 g_free (win32_gc->pen_dashes);
598 win32_gc->pen_dashes = g_new (DWORD, n);
599 for (i = 0; i < n; i++)
600 win32_gc->pen_dashes[i] = dash_list[i];
604 gdk_gc_set_clip_rectangle (GdkGC *gc,
605 GdkRectangle *rectangle)
607 GdkGCWin32 *win32_gc;
609 g_return_if_fail (GDK_IS_GC (gc));
611 win32_gc = GDK_GC_WIN32 (gc);
613 if (win32_gc->hcliprgn)
614 DeleteObject (win32_gc->hcliprgn);
618 GDK_NOTE (GC, g_print ("gdk_gc_set_clip_rectangle: %p: %s\n",
620 _gdk_win32_gdkrectangle_to_string (rectangle)));
621 win32_gc->hcliprgn = CreateRectRgn (rectangle->x, rectangle->y,
622 rectangle->x + rectangle->width,
623 rectangle->y + rectangle->height);
624 win32_gc->values_mask |= GDK_GC_CLIP_MASK;
628 GDK_NOTE (GC, g_print ("gdk_gc_set_clip_rectangle: NULL\n"));
630 win32_gc->hcliprgn = NULL;
631 win32_gc->values_mask &= ~GDK_GC_CLIP_MASK;
634 gc->clip_x_origin = 0;
635 gc->clip_y_origin = 0;
637 win32_gc->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
641 gdk_gc_set_clip_region (GdkGC *gc,
644 GdkGCWin32 *win32_gc;
646 g_return_if_fail (GDK_IS_GC (gc));
648 win32_gc = GDK_GC_WIN32 (gc);
650 if (win32_gc->hcliprgn)
651 DeleteObject (win32_gc->hcliprgn);
655 GDK_NOTE (GC, g_print ("gdk_gc_set_clip_region: %p: %s\n",
657 _gdk_win32_gdkregion_to_string (region)));
659 win32_gc->hcliprgn = _gdk_win32_gdkregion_to_hrgn (region, 0, 0);
660 win32_gc->values_mask |= GDK_GC_CLIP_MASK;
664 GDK_NOTE (GC, g_print ("gdk_gc_set_clip_region: NULL\n"));
666 win32_gc->hcliprgn = NULL;
667 win32_gc->values_mask &= ~GDK_GC_CLIP_MASK;
670 gc->clip_x_origin = 0;
671 gc->clip_y_origin = 0;
673 win32_gc->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
677 gdk_gc_copy (GdkGC *dst_gc,
680 GdkGCWin32 *dst_win32_gc;
681 GdkGCWin32 *src_win32_gc;
683 g_return_if_fail (GDK_IS_GC_WIN32 (dst_gc));
684 g_return_if_fail (GDK_IS_GC_WIN32 (src_gc));
686 dst_win32_gc = GDK_GC_WIN32 (dst_gc);
687 src_win32_gc = GDK_GC_WIN32 (src_gc);
689 GDK_NOTE (GC, g_print ("gdk_gc_copy: %p := %p\n", dst_win32_gc, src_win32_gc));
691 if (dst_gc->colormap)
692 g_object_unref (G_OBJECT (dst_gc->colormap));
694 if (dst_win32_gc->hcliprgn != NULL)
695 DeleteObject (dst_win32_gc->hcliprgn);
697 if (dst_win32_gc->font != NULL)
698 gdk_font_unref (dst_win32_gc->font);
700 if (dst_win32_gc->tile != NULL)
701 g_object_unref (dst_win32_gc->tile);
703 if (dst_win32_gc->stipple != NULL)
704 g_object_unref (dst_win32_gc->stipple);
706 if (dst_win32_gc->pen_dashes)
707 g_free (dst_win32_gc->pen_dashes);
709 dst_gc->clip_x_origin = src_gc->clip_x_origin;
710 dst_gc->clip_y_origin = src_gc->clip_y_origin;
711 dst_gc->ts_x_origin = src_gc->ts_x_origin;
712 dst_gc->ts_y_origin = src_gc->ts_y_origin;
713 dst_gc->colormap = src_gc->colormap;
714 if (dst_gc->colormap)
715 g_object_ref (G_OBJECT (dst_gc->colormap));
717 dst_win32_gc->hcliprgn = src_win32_gc->hcliprgn;
718 if (dst_win32_gc->hcliprgn)
720 /* create a new region, to copy to */
721 dst_win32_gc->hcliprgn = CreateRectRgn (0,0,1,1);
722 /* overwrite from source */
723 CombineRgn (dst_win32_gc->hcliprgn, src_win32_gc->hcliprgn,
727 dst_win32_gc->values_mask = src_win32_gc->values_mask;
728 dst_win32_gc->foreground = src_win32_gc->foreground;
729 dst_win32_gc->background = src_win32_gc->background;
730 dst_win32_gc->font = src_win32_gc->font;
731 if (dst_win32_gc->font != NULL)
732 gdk_font_ref (dst_win32_gc->font);
734 dst_win32_gc->rop2 = src_win32_gc->rop2;
735 dst_win32_gc->fill_style = src_win32_gc->fill_style;
736 dst_win32_gc->tile = src_win32_gc->tile;
737 if (dst_win32_gc->tile != NULL)
738 g_object_ref (dst_win32_gc->tile);
740 dst_win32_gc->stipple = src_win32_gc->stipple;
741 if (dst_win32_gc->stipple != NULL)
742 g_object_ref (dst_win32_gc->stipple);
744 dst_win32_gc->subwindow_mode = src_win32_gc->subwindow_mode;
745 dst_win32_gc->graphics_exposures = src_win32_gc->graphics_exposures;
746 dst_win32_gc->pen_width = src_win32_gc->pen_width;
747 dst_win32_gc->pen_style = src_win32_gc->pen_style;
748 dst_win32_gc->pen_dashes = src_win32_gc->pen_dashes;
749 if (dst_win32_gc->pen_dashes)
750 dst_win32_gc->pen_dashes = g_memdup (src_win32_gc->pen_dashes,
751 sizeof (DWORD) * src_win32_gc->pen_num_dashes);
752 dst_win32_gc->pen_num_dashes = src_win32_gc->pen_num_dashes;
755 dst_win32_gc->hdc = NULL;
756 dst_win32_gc->saved_dc = FALSE;
757 dst_win32_gc->hwnd = NULL;
758 dst_win32_gc->holdpal = NULL;
762 gdk_gc_get_screen (GdkGC *gc)
764 g_return_val_if_fail (GDK_IS_GC_WIN32 (gc), NULL);
769 static guint bitmask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
772 _gdk_win32_colormap_color (GdkColormap *colormap,
775 const GdkVisual *visual;
776 GdkColormapPrivateWin32 *colormap_private;
779 if (colormap == NULL)
780 return DIBINDEX (pixel & 1);
782 colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
784 g_assert (colormap_private != NULL);
786 visual = colormap->visual;
787 switch (visual->type)
789 case GDK_VISUAL_GRAYSCALE:
790 case GDK_VISUAL_PSEUDO_COLOR:
791 case GDK_VISUAL_STATIC_COLOR:
792 return PALETTEINDEX (pixel);
794 case GDK_VISUAL_TRUE_COLOR:
795 r = (pixel & visual->red_mask) >> visual->red_shift;
796 r = (r * 255) / bitmask[visual->red_prec];
797 g = (pixel & visual->green_mask) >> visual->green_shift;
798 g = (g * 255) / bitmask[visual->green_prec];
799 b = (pixel & visual->blue_mask) >> visual->blue_shift;
800 b = (b * 255) / bitmask[visual->blue_prec];
801 return RGB (r, g, b);
804 g_assert_not_reached ();
810 predraw_set_foreground (GdkGC *gc,
811 GdkColormap *colormap,
815 GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
816 GdkColormapPrivateWin32 *colormap_private;
820 (colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
821 colormap->visual->type == GDK_VISUAL_STATIC_COLOR))
823 colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
825 g_assert (colormap_private != NULL);
827 if (!(win32_gc->holdpal = SelectPalette (win32_gc->hdc, colormap_private->hpal, FALSE)))
828 WIN32_GDI_FAILED ("SelectPalette"), *ok = FALSE;
829 else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
830 WIN32_GDI_FAILED ("RealizePalette"), *ok = FALSE;
832 GDK_NOTE (COLORMAP, g_print ("predraw_set_foreground: realized %p: %d colors\n",
833 colormap_private->hpal, k));
836 fg = _gdk_win32_colormap_color (colormap, win32_gc->foreground);
838 GDK_NOTE (GC, g_print ("predraw_set_foreground: fg=%06lx\n", fg));
844 * @drawable: destination #GdkDrawable
845 * @gc: #GdkGC to use for drawing on @drawable
846 * @usage: mask indicating what properties needs to be set up
848 * Allocates a Windows device context handle (HDC) for drawing into
849 * @drawable, and sets it up appropriately according to @usage.
851 * Each #GdkGC can at one time have only one HDC associated with it.
853 * The following flags in @mask are handled:
855 * If %GDK_GC_FOREGROUND is set in @mask, a solid brush of the
856 * foreground color in @gc is selected into the HDC. The text color of
857 * the HDC is also set. If the @drawable has a palette (256-color
858 * mode), the palette is selected and realized.
860 * If any of the line attribute flags (%GDK_GC_LINE_WIDTH,
861 * %GDK_GC_LINE_STYLE, %GDK_GC_CAP_STYLE and %GDK_GC_JOIN_STYLE) is
862 * set in @mask, a solid pen of the foreground color and appropriate
863 * width and stule is created and selected into the HDC. Note that the
864 * dash properties are not completely implemented.
866 * If the %GDK_GC_FONT flag is set, the background mix mode is set to
867 * %TRANSPARENT. and the text alignment is set to
868 * %TA_BASELINE|%TA_LEFT. Note that no font gets selected into the HDC
871 * Some things are done regardless of @mask: If the function in @gc is
872 * any other than %GDK_COPY, the raster operation of the HDC is
873 * set. If @gc has a clip mask, the clip region of the HDC is set.
875 * Note that the fill style, tile, stipple, and tile and stipple
876 * origins in the @gc are ignored by this function. (In general, tiles
877 * and stipples can't be implemented directly on Win32; you need to do
878 * multiple pass drawing and blitting to implement tiles or
879 * stipples. GDK does just that when you call the GDK drawing
880 * functions with a GC that asks for tiles or stipples.)
882 * When the HDC is no longer used, it should be released by calling
883 * <function>gdk_win32_hdc_release()</function> with the same
886 * If you modify the HDC by calling <function>SelectObject</function>
887 * you should undo those modifications before calling
888 * <function>gdk_win32_hdc_release()</function>.
890 * Return value: The HDC.
893 gdk_win32_hdc_get (GdkDrawable *drawable,
895 GdkGCValuesMask usage)
897 GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
898 GdkDrawableImplWin32 *impl = NULL;
900 COLORREF fg = RGB (0, 0, 0);
905 g_assert (win32_gc->hdc == NULL);
907 if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
908 impl = GDK_DRAWABLE_IMPL_WIN32(drawable);
909 else if (GDK_IS_WINDOW (drawable))
910 impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
911 else if (GDK_IS_PIXMAP (drawable))
912 impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
914 g_assert_not_reached ();
916 win32_gc->hwnd = impl->handle;
918 if (GDK_IS_PIXMAP_IMPL_WIN32 (impl))
920 if ((win32_gc->hdc = CreateCompatibleDC (NULL)) == NULL)
921 WIN32_GDI_FAILED ("CreateCompatibleDC"), ok = FALSE;
923 if (ok && (win32_gc->saved_dc = SaveDC (win32_gc->hdc)) == 0)
924 WIN32_GDI_FAILED ("SaveDC"), ok = FALSE;
926 if (ok && SelectObject (win32_gc->hdc, win32_gc->hwnd) == NULL)
927 WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
931 if ((win32_gc->hdc = GetDC (win32_gc->hwnd)) == NULL)
932 WIN32_GDI_FAILED ("GetDC");
934 if (ok && (win32_gc->saved_dc = SaveDC (win32_gc->hdc)) == 0)
935 WIN32_GDI_FAILED ("SaveDC");
938 if (ok && (usage & GDK_GC_FOREGROUND))
940 fg = predraw_set_foreground (gc, impl->colormap, &ok);
941 if (ok && (hbr = CreateSolidBrush (fg)) == NULL)
942 WIN32_GDI_FAILED ("CreateSolidBrush"), ok = FALSE;
944 if (ok && SelectObject (win32_gc->hdc, hbr) == NULL)
945 WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
947 if (ok && SetTextColor (win32_gc->hdc, fg) == CLR_INVALID)
948 WIN32_GDI_FAILED ("SetTextColor"), ok = FALSE;
951 if (ok && (usage & LINE_ATTRIBUTES))
953 /* Create and select pen */
954 logbrush.lbStyle = BS_SOLID;
955 logbrush.lbColor = fg;
956 logbrush.lbHatch = 0;
958 if (win32_gc->pen_num_dashes > 0 && !IS_WIN_NT ())
960 /* The Win9x GDI is rather limited so we either draw dashed
961 * lines ourselves (only horizontal and vertical) or let them be
962 * drawn solid to avoid implementing a whole line renderer.
964 if ((hpen = ExtCreatePen (
965 (win32_gc->pen_style & ~(PS_STYLE_MASK)) | PS_SOLID,
966 MAX (win32_gc->pen_width, 1),
969 WIN32_GDI_FAILED ("ExtCreatePen"), ok = FALSE;
973 if ((hpen = ExtCreatePen (win32_gc->pen_style,
974 MAX (win32_gc->pen_width, 1),
976 win32_gc->pen_num_dashes,
977 win32_gc->pen_dashes)) == NULL)
978 WIN32_GDI_FAILED ("ExtCreatePen"), ok = FALSE;
981 if (ok && SelectObject (win32_gc->hdc, hpen) == NULL)
982 WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
985 if (ok && (usage & GDK_GC_FONT))
987 if (SetBkMode (win32_gc->hdc, TRANSPARENT) == 0)
988 WIN32_GDI_FAILED ("SetBkMode"), ok = FALSE;
990 if (ok && SetTextAlign (win32_gc->hdc, TA_BASELINE|TA_LEFT|TA_NOUPDATECP) == GDI_ERROR)
991 WIN32_GDI_FAILED ("SetTextAlign"), ok = FALSE;
994 if (ok && win32_gc->rop2 != R2_COPYPEN)
995 if (SetROP2 (win32_gc->hdc, win32_gc->rop2) == 0)
996 WIN32_GDI_FAILED ("SetROP2"), ok = FALSE;
999 (win32_gc->values_mask & GDK_GC_CLIP_MASK) &&
1000 win32_gc->hcliprgn != NULL)
1002 if (SelectClipRgn (win32_gc->hdc, win32_gc->hcliprgn) == ERROR)
1003 WIN32_API_FAILED ("SelectClipRgn"), ok = FALSE;
1005 if (ok && win32_gc->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN) &&
1006 OffsetClipRgn (win32_gc->hdc,
1007 win32_gc->values_mask & GDK_GC_CLIP_X_ORIGIN ? gc->clip_x_origin : 0,
1008 win32_gc->values_mask & GDK_GC_CLIP_Y_ORIGIN ? gc->clip_y_origin : 0) == ERROR)
1009 WIN32_API_FAILED ("OffsetClipRgn"), ok = FALSE;
1012 GDK_NOTE (GC, (g_print ("gdk_win32_hdc_get: %p (%s): ",
1013 win32_gc, _gdk_win32_gcvalues_mask_to_string (usage)),
1014 _gdk_win32_print_dc (win32_gc->hdc)));
1016 return win32_gc->hdc;
1020 * gdk_win32_hdc_release:
1021 * @drawable: destination #GdkDrawable
1022 * @gc: #GdkGC to use for drawing on @drawable
1023 * @usage: mask indicating what properties were set up
1025 * This function deallocates the Windows device context allocated by
1026 * <funcion>gdk_win32_hdc_get()</function>. It should be called with
1027 * the same parameters.
1030 gdk_win32_hdc_release (GdkDrawable *drawable,
1032 GdkGCValuesMask usage)
1034 GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
1035 GdkDrawableImplWin32 *impl = NULL;
1036 HGDIOBJ hpen = NULL;
1039 GDK_NOTE (GC, g_print ("gdk_win32_hdc_release: %p: %p (%s)\n",
1040 win32_gc, win32_gc->hdc,
1041 _gdk_win32_gcvalues_mask_to_string (usage)));
1043 if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
1044 impl = GDK_DRAWABLE_IMPL_WIN32(drawable);
1045 else if (GDK_IS_WINDOW (drawable))
1046 impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
1047 else if (GDK_IS_PIXMAP (drawable))
1048 impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
1050 g_assert_not_reached ();
1052 if (win32_gc->holdpal != NULL)
1056 if (!SelectPalette (win32_gc->hdc, win32_gc->holdpal, FALSE))
1057 WIN32_GDI_FAILED ("SelectPalette");
1058 else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
1059 WIN32_GDI_FAILED ("RealizePalette");
1061 GDK_NOTE (COLORMAP, g_print ("gdk_win32_hdc_release: realized %p: %d colors\n",
1062 win32_gc->holdpal, k));
1063 win32_gc->holdpal = NULL;
1066 if (usage & LINE_ATTRIBUTES)
1067 if ((hpen = GetCurrentObject (win32_gc->hdc, OBJ_PEN)) == NULL)
1068 WIN32_GDI_FAILED ("GetCurrentObject");
1070 if (usage & GDK_GC_FOREGROUND)
1071 if ((hbr = GetCurrentObject (win32_gc->hdc, OBJ_BRUSH)) == NULL)
1072 WIN32_GDI_FAILED ("GetCurrentObject");
1074 GDI_CALL (RestoreDC, (win32_gc->hdc, win32_gc->saved_dc));
1076 if (GDK_IS_PIXMAP_IMPL_WIN32 (impl))
1077 GDI_CALL (DeleteDC, (win32_gc->hdc));
1079 GDI_CALL (ReleaseDC, (win32_gc->hwnd, win32_gc->hdc));
1082 GDI_CALL (DeleteObject, (hpen));
1085 GDI_CALL (DeleteObject, (hbr));
1087 win32_gc->hdc = NULL;
1090 /* This function originally from Jean-Edouard Lachand-Robert, and
1091 * available at www.codeguru.com. Simplified for our needs, not sure
1092 * how much of the original code left any longer. Now handles just
1093 * one-bit deep bitmaps (in Window parlance, ie those that GDK calls
1094 * bitmaps (and not pixmaps), with zero pixels being transparent.
1097 /* _gdk_win32_bitmap_to_hrgn : Create a region from the
1098 * "non-transparent" pixels of a bitmap.
1102 _gdk_win32_bitmap_to_hrgn (GdkPixmap *pixmap)
1109 gint width, height, bpl;
1113 g_assert (GDK_PIXMAP_OBJECT(pixmap)->depth == 1);
1115 bits = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->bits;
1116 width = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->width;
1117 height = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->height;
1118 bpl = ((width - 1)/32 + 1)*4;
1120 /* For better performances, we will use the ExtCreateRegion()
1121 * function to create the region. This function take a RGNDATA
1122 * structure on entry. We will add rectangles by amount of
1123 * ALLOC_UNIT number in this structure.
1125 #define ALLOC_UNIT 100
1126 maxRects = ALLOC_UNIT;
1128 pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
1129 pData->rdh.dwSize = sizeof (RGNDATAHEADER);
1130 pData->rdh.iType = RDH_RECTANGLES;
1131 pData->rdh.nCount = pData->rdh.nRgnSize = 0;
1132 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1134 for (y = 0; y < height; y++)
1136 /* Scan each bitmap row from left to right*/
1137 p = (guchar *) bits + y * bpl;
1138 for (x = 0; x < width; x++)
1140 /* Search for a continuous range of "non transparent pixels"*/
1144 if ((((p[x/8])>>(7-(x%8)))&1) == 0)
1145 /* This pixel is "transparent"*/
1153 /* Add the pixels (x0, y) to (x, y+1) as a new rectangle
1156 if (pData->rdh.nCount >= maxRects)
1158 maxRects += ALLOC_UNIT;
1159 pData = g_realloc (pData, sizeof(RGNDATAHEADER)
1160 + (sizeof(RECT) * maxRects));
1162 pr = (RECT *) &pData->Buffer;
1163 SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
1164 if (x0 < pData->rdh.rcBound.left)
1165 pData->rdh.rcBound.left = x0;
1166 if (y < pData->rdh.rcBound.top)
1167 pData->rdh.rcBound.top = y;
1168 if (x > pData->rdh.rcBound.right)
1169 pData->rdh.rcBound.right = x;
1170 if (y+1 > pData->rdh.rcBound.bottom)
1171 pData->rdh.rcBound.bottom = y+1;
1172 pData->rdh.nCount++;
1174 /* On Windows98, ExtCreateRegion() may fail if the
1175 * number of rectangles is too large (ie: >
1176 * 4000). Therefore, we have to create the region by
1179 if (pData->rdh.nCount == 2000)
1181 HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
1184 CombineRgn(hRgn, hRgn, h, RGN_OR);
1189 pData->rdh.nCount = 0;
1190 SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1196 /* Create or extend the region with the remaining rectangles*/
1197 h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
1198 + (sizeof (RECT) * maxRects), pData);
1201 CombineRgn (hRgn, hRgn, h, RGN_OR);
1214 _gdk_win32_gdkregion_to_hrgn (GdkRegion *region,
1221 GdkRegionBox *boxes = region->rects;
1223 sizeof (RGNDATAHEADER) + (sizeof (RECT) * region->numRects);
1226 rgndata = g_malloc (nbytes);
1227 rgndata->rdh.dwSize = sizeof (RGNDATAHEADER);
1228 rgndata->rdh.iType = RDH_RECTANGLES;
1229 rgndata->rdh.nCount = rgndata->rdh.nRgnSize = 0;
1230 SetRect (&rgndata->rdh.rcBound,
1231 G_MAXSHORT, G_MAXSHORT, G_MINSHORT, G_MINSHORT);
1233 for (i = 0; i < region->numRects; i++)
1235 rect = ((RECT *) rgndata->Buffer) + rgndata->rdh.nCount++;
1237 rect->left = CLAMP (boxes[i].x1 + x_origin,
1238 G_MINSHORT, G_MAXSHORT);
1239 rect->right = CLAMP (boxes[i].x2 + x_origin,
1240 G_MINSHORT, G_MAXSHORT);
1241 rect->top = CLAMP (boxes[i].y1 + y_origin,
1242 G_MINSHORT, G_MAXSHORT);
1243 rect->bottom = CLAMP (boxes[i].y2 + y_origin,
1244 G_MINSHORT, G_MAXSHORT);
1246 if (rect->left < rgndata->rdh.rcBound.left)
1247 rgndata->rdh.rcBound.left = rect->left;
1248 if (rect->right > rgndata->rdh.rcBound.right)
1249 rgndata->rdh.rcBound.right = rect->right;
1250 if (rect->top < rgndata->rdh.rcBound.top)
1251 rgndata->rdh.rcBound.top = rect->top;
1252 if (rect->bottom > rgndata->rdh.rcBound.bottom)
1253 rgndata->rdh.rcBound.bottom = rect->bottom;
1255 if ((hrgn = ExtCreateRegion (NULL, nbytes, rgndata)) == NULL)
1256 WIN32_API_FAILED ("ExtCreateRegion");