/* GDK - The GIMP Drawing Kit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include "config.h" #include #include "gdkgc.h" #include "gdkfont.h" #include "gdkpixmap.h" #include "gdkregion-generic.h" #include "gdkinternals.h" #include "gdkprivate-win32.h" static void gdk_win32_gc_get_values (GdkGC *gc, GdkGCValues *values); static void gdk_win32_gc_set_values (GdkGC *gc, GdkGCValues *values, GdkGCValuesMask values_mask); static void gdk_win32_gc_set_dashes (GdkGC *gc, gint dash_offset, gint8 dash_list[], gint n); static void gdk_gc_win32_class_init (GdkGCWin32Class *klass); static void gdk_gc_win32_finalize (GObject *object); static gpointer parent_class = NULL; GType gdk_gc_win32_get_type (void) { static GType object_type = 0; if (!object_type) { static const GTypeInfo object_info = { sizeof (GdkGCWin32Class), (GBaseInitFunc) NULL, (GBaseFinalizeFunc) NULL, (GClassInitFunc) gdk_gc_win32_class_init, NULL, /* class_finalize */ NULL, /* class_data */ sizeof (GdkGCWin32), 0, /* n_preallocs */ (GInstanceInitFunc) NULL, }; object_type = g_type_register_static (GDK_TYPE_GC, "GdkGCWin32", &object_info, 0); } return object_type; } static void gdk_gc_win32_class_init (GdkGCWin32Class *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); GdkGCClass *gc_class = GDK_GC_CLASS (klass); parent_class = g_type_class_peek_parent (klass); object_class->finalize = gdk_gc_win32_finalize; gc_class->get_values = gdk_win32_gc_get_values; gc_class->set_values = gdk_win32_gc_set_values; gc_class->set_dashes = gdk_win32_gc_set_dashes; } static void gdk_gc_win32_finalize (GObject *object) { GdkGCWin32 *win32_gc = GDK_GC_WIN32 (object); if (win32_gc->clip_region) gdk_region_destroy (win32_gc->clip_region); if (win32_gc->values_mask & GDK_GC_FONT) gdk_font_unref (win32_gc->font); if (win32_gc->values_mask & GDK_GC_TILE) gdk_drawable_unref (win32_gc->tile); if (win32_gc->values_mask & GDK_GC_STIPPLE) gdk_drawable_unref (win32_gc->stipple); G_OBJECT_CLASS (parent_class)->finalize (object); } static void gdk_win32_gc_values_to_win32values (GdkGCValues *values, GdkGCValuesMask mask, GdkGCWin32 *win32_gc) { char *s = ""; gint sw, sh; GDK_NOTE (MISC, g_print ("{")); if (mask & GDK_GC_FOREGROUND) { win32_gc->foreground = values->foreground.pixel; win32_gc->values_mask |= GDK_GC_FOREGROUND; GDK_NOTE (MISC, (g_print ("fg=%.06lx", win32_gc->foreground), s = ",")); } if (mask & GDK_GC_BACKGROUND) { win32_gc->background = values->background.pixel; win32_gc->values_mask |= GDK_GC_BACKGROUND; GDK_NOTE (MISC, (g_print ("%sbg=%.06lx", s, win32_gc->background), s = ",")); } if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT || values->font->type == GDK_FONT_FONTSET)) { if (win32_gc->font != NULL) gdk_font_unref (win32_gc->font); win32_gc->font = values->font; if (win32_gc->font != NULL) { gchar *xlfd; gdk_font_ref (win32_gc->font); win32_gc->values_mask |= GDK_GC_FONT; GDK_NOTE (MISC, (xlfd = gdk_font_full_name_get (win32_gc->font), g_print ("%sfont=%s", s, xlfd), s = ",", gdk_font_full_name_free (xlfd))); } else { win32_gc->values_mask &= ~GDK_GC_FONT; GDK_NOTE (MISC, (g_print ("%sfont=NULL", s), s = ",")); } } if (mask & GDK_GC_FUNCTION) { GDK_NOTE (MISC, (g_print ("%srop2=", s), s = ",")); switch (values->function) { case GDK_COPY: win32_gc->rop2 = R2_COPYPEN; GDK_NOTE (MISC, g_print ("COPYPEN")); break; case GDK_INVERT: win32_gc->rop2 = R2_NOT; GDK_NOTE (MISC, g_print ("NOT")); break; case GDK_XOR: win32_gc->rop2 = R2_XORPEN; GDK_NOTE (MISC, g_print ("XORPEN")); break; case GDK_CLEAR: win32_gc->rop2 = R2_BLACK; GDK_NOTE (MISC, g_print ("BLACK")); break; case GDK_AND: win32_gc->rop2 = R2_MASKPEN; GDK_NOTE (MISC, g_print ("MASKPEN")); break; case GDK_AND_REVERSE: win32_gc->rop2 = R2_MASKPENNOT; GDK_NOTE (MISC, g_print ("MASKPENNOT")); break; case GDK_AND_INVERT: win32_gc->rop2 = R2_MASKNOTPEN; GDK_NOTE (MISC, g_print ("MASKNOTPEN")); break; case GDK_NOOP: win32_gc->rop2 = R2_NOP; GDK_NOTE (MISC, g_print ("NOP")); break; case GDK_OR: win32_gc->rop2 = R2_MERGEPEN; GDK_NOTE (MISC, g_print ("MERGEPEN")); break; case GDK_EQUIV: win32_gc->rop2 = R2_NOTXORPEN; GDK_NOTE (MISC, g_print ("NOTXORPEN")); break; case GDK_OR_REVERSE: win32_gc->rop2 = R2_MERGEPENNOT; GDK_NOTE (MISC, g_print ("MERGEPENNOT")); break; case GDK_COPY_INVERT: win32_gc->rop2 = R2_NOTCOPYPEN; GDK_NOTE (MISC, g_print ("NOTCOPYPEN")); break; case GDK_OR_INVERT: win32_gc->rop2 = R2_MERGENOTPEN; GDK_NOTE (MISC, g_print ("MERGENOTPEN")); break; case GDK_NAND: win32_gc->rop2 = R2_NOTMASKPEN; GDK_NOTE (MISC, g_print ("NOTMASKPEN")); break; case GDK_NOR: win32_gc->rop2 = R2_NOTMERGEPEN; GDK_NOTE (MISC, g_print ("NOTMERGEPEN")); break; case GDK_SET: win32_gc->rop2 = R2_WHITE; GDK_NOTE (MISC, g_print ("WHITE")); break; } win32_gc->values_mask |= GDK_GC_FUNCTION; } if (mask & GDK_GC_FILL) { win32_gc->fill_style = values->fill; win32_gc->values_mask |= GDK_GC_FILL; GDK_NOTE (MISC, (g_print ("%sfill=%d", s, win32_gc->fill_style), s = ",")); } if (mask & GDK_GC_TILE) { if (win32_gc->tile != NULL) gdk_drawable_unref (win32_gc->tile); win32_gc->tile = values->tile; if (win32_gc->tile != NULL) { gdk_drawable_ref (win32_gc->tile); win32_gc->values_mask |= GDK_GC_TILE; GDK_NOTE (MISC, (g_print ("%stile=%#x", s, (guint) GDK_PIXMAP_HBITMAP (win32_gc->tile)), s = ",")); } else { win32_gc->values_mask &= ~GDK_GC_TILE; GDK_NOTE (MISC, (g_print ("%stile=NULL", s), s = ",")); } } if (mask & GDK_GC_STIPPLE) { if (win32_gc->stipple != NULL) gdk_drawable_unref (win32_gc->stipple); win32_gc->stipple = values->stipple; if (win32_gc->stipple != NULL) { gdk_drawable_get_size (win32_gc->stipple, &sw, &sh); #if 0 /* HB: this size limitation is disabled to make radio and check * buttons work. I got the impression from the API docs, that * it shouldn't be necessary at all, but win9x would do the clipping */ if ( (sw != 8 || sh != 8) && !IS_WIN_NT ()) /* HB: the MSDN says it's a Win95 limitation */ { /* It seems that it *must* be 8x8, at least on my machine. * Thus, tile an 8x8 bitmap with the stipple in case it is * smaller, or simply use just the top left 8x8 in case it is * larger. */ gchar dummy[8]; GdkPixmap *bm = gdk_bitmap_create_from_data (NULL, dummy, 8, 8); GdkGC *gc = gdk_gc_new (bm); gint i, j; i = 0; while (i < 8) { j = 0; while (j < 8) { gdk_draw_drawable (bm, gc, win32_gc->stipple, 0, 0, i, j, sw, sh); j += sh; } i += sw; } win32_gc->stipple = bm; gdk_gc_unref (gc); } else #endif gdk_drawable_ref (win32_gc->stipple); win32_gc->values_mask |= GDK_GC_STIPPLE; GDK_NOTE (MISC, (g_print ("%sstipple=%#x", s, (guint) GDK_PIXMAP_HBITMAP (win32_gc->stipple)), s = ",")); } else { win32_gc->values_mask &= ~GDK_GC_STIPPLE; GDK_NOTE (MISC, (g_print ("%sstipple=NULL", s), s = ",")); } } if (mask & GDK_GC_CLIP_MASK) { if (win32_gc->clip_region != NULL) { gdk_region_destroy (win32_gc->clip_region); win32_gc->clip_region = NULL; } if (win32_gc->hcliprgn != NULL) { DeleteObject (win32_gc->hcliprgn); win32_gc->hcliprgn = NULL; } if (values->clip_mask != NULL) { win32_gc->hcliprgn = BitmapToRegion ((HBITMAP) GDK_PIXMAP_HBITMAP (values->clip_mask)); win32_gc->values_mask |= GDK_GC_CLIP_MASK; } else { win32_gc->hcliprgn = NULL; win32_gc->values_mask &= ~GDK_GC_CLIP_MASK; } GDK_NOTE (MISC, (g_print ("%sclip=%#x", s, (guint) win32_gc->hcliprgn), s = ",")); } if (mask & GDK_GC_SUBWINDOW) { win32_gc->subwindow_mode = values->subwindow_mode; win32_gc->values_mask |= GDK_GC_SUBWINDOW; GDK_NOTE (MISC, (g_print ("%ssubw=%d", s, win32_gc->subwindow_mode), s = ",")); } if (mask & GDK_GC_TS_X_ORIGIN) { win32_gc->values_mask |= GDK_GC_TS_X_ORIGIN; GDK_NOTE (MISC, (g_print ("%sts_x=%d", s, values->ts_x_origin), s = ",")); } if (mask & GDK_GC_TS_Y_ORIGIN) { win32_gc->values_mask |= GDK_GC_TS_Y_ORIGIN; GDK_NOTE (MISC, (g_print ("%sts_y=%d", s, values->ts_y_origin), s = ",")); } if (mask & GDK_GC_CLIP_X_ORIGIN) { win32_gc->values_mask |= GDK_GC_CLIP_X_ORIGIN; GDK_NOTE (MISC, (g_print ("%sclip_x=%d", s, values->clip_x_origin), s = ",")); } if (mask & GDK_GC_CLIP_Y_ORIGIN) { win32_gc->values_mask |= GDK_GC_CLIP_Y_ORIGIN; GDK_NOTE (MISC, (g_print ("%sclip_y=%d", s, values->clip_y_origin), s = ",")); } if (mask & GDK_GC_EXPOSURES) { win32_gc->graphics_exposures = values->graphics_exposures; win32_gc->values_mask |= GDK_GC_EXPOSURES; GDK_NOTE (MISC, (g_print ("%sexp=%d", s, win32_gc->graphics_exposures), s = ",")); } if (mask & GDK_GC_LINE_WIDTH) { win32_gc->pen_width = values->line_width; win32_gc->values_mask |= GDK_GC_LINE_WIDTH; GDK_NOTE (MISC, (g_print ("%spw=%d", s, win32_gc->pen_width), s = ",")); } if (mask & GDK_GC_LINE_STYLE) { GDK_NOTE (MISC, (g_print ("%sps|=", s), s = ",")); switch (values->line_style) { case GDK_LINE_SOLID: win32_gc->pen_style &= ~(PS_STYLE_MASK); GDK_NOTE (MISC, g_print ("LINE_SOLID")); win32_gc->pen_style |= PS_SOLID; break; case GDK_LINE_ON_OFF_DASH: case GDK_LINE_DOUBLE_DASH: /* ??? */ /* only set the linestyle here, if it isn't already set * gdk_win32_gc_set_dashes () knows better */ if (0 == (win32_gc->values_mask & GDK_GC_LINE_STYLE)) { win32_gc->pen_style &= ~(PS_STYLE_MASK); GDK_NOTE (MISC, g_print ("DASH")); win32_gc->pen_style |= PS_DASH; } break; } win32_gc->values_mask |= GDK_GC_LINE_STYLE; } if (mask & GDK_GC_CAP_STYLE) { win32_gc->pen_style &= ~(PS_ENDCAP_MASK); GDK_NOTE (MISC, (g_print ("%sps|=", s), s = ",")); switch (values->cap_style) { case GDK_CAP_NOT_LAST: /* ??? */ case GDK_CAP_BUTT: GDK_NOTE (MISC, g_print ("ENDCAP_FLAT")); win32_gc->pen_style |= PS_ENDCAP_FLAT; break; case GDK_CAP_ROUND: GDK_NOTE (MISC, g_print ("ENDCAP_ROUND")); win32_gc->pen_style |= PS_ENDCAP_ROUND; break; case GDK_CAP_PROJECTING: GDK_NOTE (MISC, g_print ("ENDCAP_SQUARE")); win32_gc->pen_style |= PS_ENDCAP_SQUARE; break; } win32_gc->values_mask |= GDK_GC_CAP_STYLE; } if (mask & GDK_GC_JOIN_STYLE) { win32_gc->pen_style &= ~(PS_JOIN_MASK); GDK_NOTE (MISC, (g_print ("%sps|=", s), s = ",")); switch (values->join_style) { case GDK_JOIN_MITER: GDK_NOTE (MISC, g_print ("JOIN_MITER")); win32_gc->pen_style |= PS_JOIN_MITER; break; case GDK_JOIN_ROUND: GDK_NOTE (MISC, g_print ("JOIN_ROUND")); win32_gc->pen_style |= PS_JOIN_ROUND; break; case GDK_JOIN_BEVEL: GDK_NOTE (MISC, g_print ("JOIN_BEVEL")); win32_gc->pen_style |= PS_JOIN_BEVEL; break; } win32_gc->values_mask |= GDK_GC_JOIN_STYLE; } GDK_NOTE (MISC, g_print ("}\n")); } GdkGC* _gdk_win32_gc_new (GdkDrawable *drawable, GdkGCValues *values, GdkGCValuesMask mask) { GdkGC *gc; GdkGCWin32 *win32_gc; /* NOTICE that the drawable here has to be the impl drawable, * not the publically-visible drawables. */ g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable), NULL); gc = g_object_new (gdk_gc_win32_get_type (), NULL); win32_gc = GDK_GC_WIN32 (gc); win32_gc->hdc = NULL; win32_gc->clip_region = NULL; win32_gc->hcliprgn = NULL; /* Use the same default values as X11 does, even if they don't make * sense per se. But apps always set fg and bg anyway. */ win32_gc->foreground = 0; win32_gc->background = 1; win32_gc->font = NULL; win32_gc->rop2 = R2_COPYPEN; win32_gc->fill_style = GDK_SOLID; win32_gc->tile = NULL; win32_gc->stipple = NULL; win32_gc->pen_style = PS_GEOMETRIC|PS_ENDCAP_FLAT|PS_JOIN_MITER; win32_gc->pen_width = 0; win32_gc->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL; GDK_NOTE (MISC, g_print ("_gdk_win32_gc_new: ")); gdk_win32_gc_values_to_win32values (values, mask, win32_gc); win32_gc->hwnd = NULL; GDK_NOTE (MISC, g_print (" = %p\n", gc)); return gc; } static void gdk_win32_gc_get_values (GdkGC *gc, GdkGCValues *values) { GdkGCWin32 *win32_gc = GDK_GC_WIN32 (gc); values->foreground.pixel = win32_gc->foreground; values->background.pixel = win32_gc->background; values->font = win32_gc->font; switch (win32_gc->rop2) { case R2_COPYPEN: values->function = GDK_COPY; break; case R2_NOT: values->function = GDK_INVERT; break; case R2_XORPEN: values->function = GDK_XOR; break; case R2_BLACK: values->function = GDK_CLEAR; break; case R2_MASKPEN: values->function = GDK_AND; break; case R2_MASKPENNOT: values->function = GDK_AND_REVERSE; break; case R2_MASKNOTPEN: values->function = GDK_AND_INVERT; break; case R2_NOP: values->function = GDK_NOOP; break; case R2_MERGEPEN: values->function = GDK_OR; break; case R2_NOTXORPEN: values->function = GDK_EQUIV; break; case R2_MERGEPENNOT: values->function = GDK_OR_REVERSE; break; case R2_NOTCOPYPEN: values->function = GDK_COPY_INVERT; break; case R2_MERGENOTPEN: values->function = GDK_OR_INVERT; break; case R2_NOTMASKPEN: values->function = GDK_NAND; break; case R2_NOTMERGEPEN: values->function = GDK_NOR; break; case R2_WHITE: values->function = GDK_SET; break; } values->fill = win32_gc->fill_style; values->tile = win32_gc->tile; values->stipple = win32_gc->stipple; /* Also the X11 backend always returns a NULL clip_mask */ values->clip_mask = NULL; values->subwindow_mode = win32_gc->subwindow_mode; values->ts_x_origin = win32_gc->parent_instance.ts_x_origin; values->ts_y_origin = win32_gc->parent_instance.ts_y_origin; values->clip_x_origin = win32_gc->parent_instance.clip_x_origin; values->clip_y_origin = win32_gc->parent_instance.clip_y_origin; values->graphics_exposures = win32_gc->graphics_exposures; values->line_width = win32_gc->pen_width; if (win32_gc->pen_style & PS_SOLID) values->line_style = GDK_LINE_SOLID; else if (win32_gc->pen_style & PS_DASH) values->line_style = GDK_LINE_ON_OFF_DASH; else values->line_style = GDK_LINE_SOLID; /* PS_ENDCAP_ROUND is zero */ if (win32_gc->pen_style & PS_ENDCAP_FLAT) values->cap_style = GDK_CAP_BUTT; else if (win32_gc->pen_style & PS_ENDCAP_SQUARE) values->cap_style = GDK_CAP_PROJECTING; else values->cap_style = GDK_CAP_ROUND; /* PS_JOIN_ROUND is zero */ if (win32_gc->pen_style & PS_JOIN_MITER) values->join_style = GDK_JOIN_MITER; else if (win32_gc->pen_style & PS_JOIN_BEVEL) values->join_style = GDK_JOIN_BEVEL; else values->join_style = GDK_JOIN_ROUND; } static void gdk_win32_gc_set_values (GdkGC *gc, GdkGCValues *values, GdkGCValuesMask mask) { g_return_if_fail (GDK_IS_GC (gc)); GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_values: ")); gdk_win32_gc_values_to_win32values (values, mask, GDK_GC_WIN32 (gc)); } static void gdk_win32_gc_set_dashes (GdkGC *gc, gint dash_offset, gint8 dash_list[], gint n) { GdkGCWin32 *win32_gc; g_return_if_fail (GDK_IS_GC (gc)); g_return_if_fail (dash_list != NULL); win32_gc = GDK_GC_WIN32 (gc); /* mark as set, see gdk_win32_gc_values_to_win32values () for the reason */ win32_gc->values_mask |= GDK_GC_LINE_STYLE; win32_gc->pen_style &= ~(PS_STYLE_MASK); /* * Set the extended line style. This could be done by * PS_USERSTYLE and ExtCreatePen; but ONLY on WinNT, * so let's make a guess (based on the implementation * in DIA). On Win9x this does only work for lines * with width one ... * * More workarounds for Win9x descibed at: * http://www.codeguru.com/gdi/dashed.shtml */ if (!IS_WIN_NT () && win32_gc->pen_width > 1) { GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_dashes: not fully supported\n")); win32_gc->pen_style |= PS_SOLID; return; } win32_gc->pen_style = PS_COSMETIC; /* ??? */ if (2 == n) { if ((dash_list[0] == dash_list[1]) && (dash_list[0] > 2)) { win32_gc->pen_style |= PS_DASH; GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASH (%d,%d)\n", dash_list[0], dash_list[1])); } else { win32_gc->pen_style |= PS_DOT; GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DOT (%d,%d)\n", dash_list[0], dash_list[1])); } } else if (4 == n) { win32_gc->pen_style |= PS_DASHDOT; GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOT (%d,%d,%d,%d)\n", dash_list[0], dash_list[1], dash_list[2], dash_list[3])); } else if (6 == n) { win32_gc->pen_style |= PS_DASHDOTDOT; GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOTDOT (%d,%d,%d,%d,%d,%d)\n", dash_list[0], dash_list[1], dash_list[2], dash_list[3], dash_list[4], dash_list[5])); } else { win32_gc->pen_style |= PS_DASH; GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: no guess for %d dashes\n", n)); } } void gdk_gc_set_clip_rectangle (GdkGC *gc, GdkRectangle *rectangle) { GdkGCWin32 *win32_gc; g_return_if_fail (GDK_IS_GC (gc)); win32_gc = GDK_GC_WIN32 (gc); if (win32_gc->hcliprgn) { DeleteObject (win32_gc->hcliprgn); win32_gc->hcliprgn = NULL; } if (win32_gc->clip_region) gdk_region_destroy (win32_gc->clip_region); if (rectangle) { GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: %dx%d@+%d+%d\n", rectangle->width, rectangle->height, rectangle->x, rectangle->y)); win32_gc->clip_region = gdk_region_rectangle (rectangle); win32_gc->values_mask |= GDK_GC_CLIP_MASK; } else { GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: NULL\n")); win32_gc->clip_region = NULL; win32_gc->values_mask &= ~GDK_GC_CLIP_MASK; } win32_gc->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN); } void gdk_gc_set_clip_region (GdkGC *gc, GdkRegion *region) { GdkGCWin32 *win32_gc; g_return_if_fail (GDK_IS_GC (gc)); win32_gc = GDK_GC_WIN32 (gc); if (win32_gc->clip_region) gdk_region_destroy (win32_gc->clip_region); if (region) { GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: %dx%d+%d+%d\n", region->extents.x2 - region->extents.x1, region->extents.y2 - region->extents.y1, region->extents.x1, region->extents.y1)); win32_gc->clip_region = gdk_region_copy (region); win32_gc->values_mask |= GDK_GC_CLIP_MASK; } else { GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: NULL\n")); win32_gc->clip_region = NULL; win32_gc->values_mask &= ~GDK_GC_CLIP_MASK; } gc->clip_x_origin = 0; gc->clip_y_origin = 0; win32_gc->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN); } void gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc) { GdkGCWin32 *dst_win32_gc; GdkGCWin32 *src_win32_gc; g_return_if_fail (GDK_IS_GC_WIN32 (dst_gc)); g_return_if_fail (GDK_IS_GC_WIN32 (src_gc)); dst_win32_gc = GDK_GC_WIN32 (dst_gc); src_win32_gc = GDK_GC_WIN32 (src_gc); if (dst_win32_gc->font != NULL) gdk_font_unref (dst_win32_gc->font); if (dst_win32_gc->tile != NULL) gdk_drawable_unref (dst_win32_gc->tile); if (dst_win32_gc->stipple != NULL) gdk_drawable_unref (dst_win32_gc->stipple); if (dst_win32_gc->clip_region != NULL) gdk_region_destroy (dst_win32_gc->clip_region); if (dst_win32_gc->hcliprgn != NULL) DeleteObject (dst_win32_gc->hcliprgn); *dst_win32_gc = *src_win32_gc; if (dst_win32_gc->hcliprgn) { /* create a new region, to copy to */ dst_win32_gc->hcliprgn = CreateRectRgn(0,0,1,1); /* overwrite from source */ CombineRgn (dst_win32_gc->hcliprgn, src_win32_gc->hcliprgn, NULL, RGN_COPY); } if (dst_win32_gc->clip_region != NULL) dst_win32_gc->clip_region = gdk_region_copy (dst_win32_gc->clip_region); if (dst_win32_gc->font != NULL) gdk_font_ref (dst_win32_gc->font); if (dst_win32_gc->tile != NULL) gdk_drawable_ref (dst_win32_gc->tile); if (dst_win32_gc->stipple != NULL) gdk_drawable_ref (dst_win32_gc->stipple); } static guint bitmask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 }; COLORREF gdk_colormap_color (GdkColormap *colormap, gulong pixel) { const GdkVisual *visual; GdkColormapPrivateWin32 *colormap_private; guchar r, g, b; if (colormap == NULL) return PALETTEINDEX (pixel); colormap_private = GDK_COLORMAP_PRIVATE_DATA (colormap); g_return_val_if_fail(colormap_private != NULL, RGB (0,0,0)); if (colormap_private->xcolormap->rc_palette) return PALETTEINDEX (pixel); visual = colormap->visual; r = (pixel & visual->red_mask) >> visual->red_shift; r = (r * 255) / bitmask[visual->red_prec]; g = (pixel & visual->green_mask) >> visual->green_shift; g = (g * 255) / bitmask[visual->green_prec]; b = (pixel & visual->blue_mask) >> visual->blue_shift; b = (b * 255) / bitmask[visual->blue_prec]; return RGB (r, g, b); } static void predraw_set_foreground (GdkGC *gc, GdkColormap *colormap, gboolean *ok) { GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc; GdkColormapPrivateWin32 *colormap_private; COLORREF fg; LOGBRUSH logbrush; HPEN hpen; HBRUSH hbr; if (colormap == NULL) { /* A 1 bit deep bitmap */ struct { WORD palVersion; WORD palNumEntries; PALETTEENTRY palPalEntry[2]; } logpal; static HPALETTE hpal = NULL; if (hpal == NULL) { /* Create a b&w palette */ logpal.palVersion = 0x300; logpal.palNumEntries = 2; logpal.palPalEntry[0].peRed = logpal.palPalEntry[0].peGreen = logpal.palPalEntry[0].peBlue = 0x00; logpal.palPalEntry[0].peFlags = 0x00; logpal.palPalEntry[1].peRed = logpal.palPalEntry[1].peGreen = logpal.palPalEntry[1].peBlue = 0xFF; logpal.palPalEntry[1].peFlags = 0x00; if ((hpal = CreatePalette ((LOGPALETTE *) &logpal)) == NULL) WIN32_GDI_FAILED ("CreatePalette"), *ok = FALSE; } SelectPalette (win32_gc->hdc, hpal, FALSE); RealizePalette (win32_gc->hdc); fg = PALETTEINDEX (win32_gc->foreground); } else { colormap_private = GDK_COLORMAP_PRIVATE_DATA (colormap); /* maybe this should bail out with g_return_if_fail * (colormap_private != NULL) ? */ if (colormap_private && colormap_private->xcolormap->rc_palette) { int k; if (SelectPalette (win32_gc->hdc, colormap_private->xcolormap->palette, FALSE) == NULL) WIN32_GDI_FAILED ("SelectPalette"), *ok = FALSE; if (TRUE || colormap_private->xcolormap->stale) { if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR) WIN32_GDI_FAILED ("RealizePalette"), *ok = FALSE; colormap_private->xcolormap->stale = FALSE; } #if 0 g_print ("Selected palette %#x for gc %#x, realized %d colors\n", colormap_private->xcolormap->palette, win32_gc->hdc, k); #endif } } fg = gdk_colormap_color (colormap, win32_gc->foreground); if (SetTextColor (win32_gc->hdc, fg) == CLR_INVALID) WIN32_GDI_FAILED ("SetTextColor"), *ok = FALSE; /* Create and select pen and brush. */ logbrush.lbStyle = BS_SOLID; logbrush.lbColor = fg; logbrush.lbHatch = 0; if (*ok && (hpen = ExtCreatePen (win32_gc->pen_style, (win32_gc->pen_width > 0 ? win32_gc->pen_width : 1), &logbrush, 0, NULL)) == NULL) WIN32_GDI_FAILED ("ExtCreatePen"); if (SelectObject (win32_gc->hdc, hpen) == NULL) WIN32_GDI_FAILED ("SelectObject"), *ok = FALSE; switch (win32_gc->fill_style) { case GDK_OPAQUE_STIPPLED: if (*ok && (hbr = CreatePatternBrush (GDK_PIXMAP_HBITMAP (win32_gc->stipple))) == NULL) WIN32_GDI_FAILED ("CreatePatternBrush"), *ok = FALSE; if (*ok && !SetBrushOrgEx(win32_gc->hdc, gc->ts_x_origin, gc->ts_y_origin, NULL)) WIN32_GDI_FAILED ("SetBrushOrgEx"), *ok = FALSE; break; case GDK_SOLID: default: if (*ok && (hbr = CreateSolidBrush (fg)) == NULL) WIN32_GDI_FAILED ("CreateSolidBrush"), *ok = FALSE; break; } if (*ok && SelectObject (win32_gc->hdc, hbr) == NULL) WIN32_GDI_FAILED ("SelectObject"), *ok = FALSE; } void predraw_set_background (GdkGC *gc, GdkColormap *colormap, gboolean *ok) { GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc; if (win32_gc->values_mask & GDK_GC_BACKGROUND) { COLORREF bg = gdk_colormap_color (colormap, win32_gc->background); if (SetBkColor (win32_gc->hdc, bg) == CLR_INVALID) WIN32_GDI_FAILED ("SetBkColor"), *ok = FALSE; } else { if (0 == SetBkMode (win32_gc->hdc, TRANSPARENT)) WIN32_GDI_FAILED ("SetBkMode"), *ok = FALSE; } } HDC gdk_win32_hdc_get (GdkDrawable *drawable, GdkGC *gc, GdkGCValuesMask usage) { GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc; GdkDrawableImplWin32 *impl; gboolean ok = TRUE; int flag; g_assert (win32_gc->hdc == NULL); if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable)) impl = GDK_DRAWABLE_IMPL_WIN32(drawable); else if (GDK_IS_WINDOW (drawable)) impl = ((GdkWindowObject *) drawable)->impl; else if (GDK_IS_PIXMAP (drawable)) impl = ((GdkPixmapObject *) drawable)->impl; win32_gc->hwnd = impl->handle; if (GDK_IS_PIXMAP_IMPL_WIN32 (impl)) { if ((win32_gc->hdc = CreateCompatibleDC (NULL)) == NULL) WIN32_GDI_FAILED ("CreateCompatibleDC"), ok = FALSE; if (ok && (win32_gc->saved_dc = SaveDC (win32_gc->hdc)) == 0) WIN32_GDI_FAILED ("SaveDC"), ok = FALSE; if (ok && SelectObject (win32_gc->hdc, win32_gc->hwnd) == NULL) WIN32_GDI_FAILED ("SelectObject"), ok = FALSE; } else { if ((win32_gc->hdc = GetDC (win32_gc->hwnd)) == NULL) WIN32_GDI_FAILED ("GetDC"); if (ok && (win32_gc->saved_dc = SaveDC (win32_gc->hdc)) == 0) WIN32_GDI_FAILED ("SaveDC"); } if (ok && (usage & GDK_GC_FOREGROUND)) predraw_set_foreground (gc, impl->colormap, &ok); if (ok && (usage & GDK_GC_BACKGROUND) /* && (win32_gc->values_mask & GDK_GC_BACKGROUND) */) predraw_set_background (gc, impl->colormap, &ok); if (ok && (usage & GDK_GC_FONT)) { if (SetBkMode (win32_gc->hdc, TRANSPARENT) == 0) WIN32_GDI_FAILED ("SetBkMode"), ok = FALSE; if (ok && SetTextAlign (win32_gc->hdc, TA_BASELINE) == GDI_ERROR) WIN32_GDI_FAILED ("SetTextAlign"), ok = FALSE; } if (ok && (win32_gc->values_mask & GDK_GC_FUNCTION)) if (SetROP2 (win32_gc->hdc, win32_gc->rop2) == 0) WIN32_GDI_FAILED ("SetROP2"), ok = FALSE; if (win32_gc->values_mask & GDK_GC_CLIP_MASK) g_assert ((win32_gc->clip_region != NULL) != (win32_gc->hcliprgn != NULL)); if (ok && (win32_gc->values_mask & GDK_GC_CLIP_MASK) && win32_gc->clip_region != NULL) { HRGN hrgn; RGNDATA *rgndata; RECT *rect; GdkRegionBox *boxes = win32_gc->clip_region->rects; guint nbytes = sizeof (RGNDATAHEADER) + (sizeof (RECT) * win32_gc->clip_region->numRects); int i; rgndata = g_malloc (nbytes); rgndata->rdh.dwSize = sizeof (RGNDATAHEADER); rgndata->rdh.iType = RDH_RECTANGLES; rgndata->rdh.nCount = rgndata->rdh.nRgnSize = 0; SetRect (&rgndata->rdh.rcBound, G_MAXSHORT, G_MAXSHORT, G_MINSHORT, G_MINSHORT); for (i = 0; i < win32_gc->clip_region->numRects; i++) { rect = ((RECT *) rgndata->Buffer) + rgndata->rdh.nCount++; rect->left = CLAMP (boxes[i].x1 + gc->clip_x_origin, G_MINSHORT, G_MAXSHORT); rect->right = CLAMP (boxes[i].x2 + gc->clip_x_origin, G_MINSHORT, G_MAXSHORT); rect->top = CLAMP (boxes[i].y1 + gc->clip_y_origin, G_MINSHORT, G_MAXSHORT); rect->bottom = CLAMP (boxes[i].y2 + gc->clip_y_origin, G_MINSHORT, G_MAXSHORT); GDK_NOTE (MISC, g_print ("clip rgn box %d: %ldx%ld@+%ld+%ld\n", i, rect->right-rect->left, rect->bottom-rect->top, rect->left, rect->top)); if (rect->left < rgndata->rdh.rcBound.left) rgndata->rdh.rcBound.left = rect->left; if (rect->right > rgndata->rdh.rcBound.right) rgndata->rdh.rcBound.right = rect->right; if (rect->top < rgndata->rdh.rcBound.top) rgndata->rdh.rcBound.top = rect->top; if (rect->bottom > rgndata->rdh.rcBound.bottom) rgndata->rdh.rcBound.bottom = rect->bottom; } if ((hrgn = ExtCreateRegion (NULL, nbytes, rgndata)) == NULL) WIN32_API_FAILED ("ExtCreateRegion"), ok = FALSE; /* * XXX: combine the fillmode-stipple with the clip region possibly * this needs to be done with the hcliprgn below as well, but * the test case here were check boxes and radio buttons ... */ if ( (win32_gc->values_mask & GDK_GC_STIPPLE) && (win32_gc->values_mask & GDK_GC_FILL) && (win32_gc->fill_style == GDK_STIPPLED)) { HRGN hstipplergn = BitmapToRegion ((HBITMAP) GDK_PIXMAP_HBITMAP (win32_gc->stipple)); if (OffsetRgn (hstipplergn, win32_gc->values_mask & GDK_GC_TS_X_ORIGIN ? gc->ts_x_origin : 0, win32_gc->values_mask & GDK_GC_TS_Y_ORIGIN ? gc->ts_y_origin : 0) == ERROR) WIN32_API_FAILED ("OffsetRgn"), ok = FALSE; if (CombineRgn (hrgn, hrgn, hstipplergn, RGN_AND) == ERROR) WIN32_API_FAILED ("CombineRgn"), ok = FALSE; if (!DeleteObject (hstipplergn)) WIN32_API_FAILED ("DeleteObject"); } if (ok && SelectClipRgn (win32_gc->hdc, hrgn) == ERROR) WIN32_API_FAILED ("SelectClipRgn"), ok = FALSE; if (hrgn != NULL) DeleteObject (hrgn); } else if (ok && (win32_gc->values_mask & GDK_GC_CLIP_MASK) && win32_gc->hcliprgn != NULL) { if (SelectClipRgn (win32_gc->hdc, win32_gc->hcliprgn) == ERROR) WIN32_API_FAILED ("SelectClipRgn"), ok = FALSE; if (ok && !OffsetClipRgn (win32_gc->hdc, win32_gc->values_mask & GDK_GC_CLIP_X_ORIGIN ? gc->clip_x_origin : 0, win32_gc->values_mask & GDK_GC_CLIP_Y_ORIGIN ? gc->clip_y_origin : 0)) WIN32_API_FAILED ("OffsetClipRgn"), ok = FALSE; } if (gdk_debug_flags & GDK_DEBUG_MISC) { HGDIOBJ obj; LOGBRUSH logbrush; EXTLOGPEN extlogpen; HRGN hrgn; RECT rect; g_print ("gdk_win32_hdc_get: %#x\n", (guint) win32_gc->hdc); obj = GetCurrentObject (win32_gc->hdc, OBJ_BRUSH); GetObject (obj, sizeof (LOGBRUSH), &logbrush); g_print ("brush: style: %s color: %.06lx hatch: %#lx\n", (logbrush.lbStyle == BS_HOLLOW ? "HOLLOW" : (logbrush.lbStyle == BS_PATTERN ? "PATTERN" : (logbrush.lbStyle == BS_SOLID ? "SOLID" : "???"))), logbrush.lbColor, logbrush.lbHatch); obj = GetCurrentObject (win32_gc->hdc, OBJ_PEN); GetObject (obj, sizeof (EXTLOGPEN), &extlogpen); g_print ("pen: type: %s style: %s endcap: %s join: %s width: %d brush: %s\n", ((extlogpen.elpPenStyle & PS_TYPE_MASK) == PS_GEOMETRIC ? "GEOMETRIC" : "COSMETIC"), ((extlogpen.elpPenStyle & PS_STYLE_MASK) == PS_NULL ? "NULL" : ((extlogpen.elpPenStyle & PS_STYLE_MASK) == PS_SOLID ? "SOLID" : ((extlogpen.elpPenStyle & PS_STYLE_MASK) == PS_DOT ? "DOT" : ((extlogpen.elpPenStyle & PS_STYLE_MASK) == PS_DASH ? "DASH" : "???")))), ((extlogpen.elpPenStyle & PS_ENDCAP_MASK) == PS_ENDCAP_FLAT ? "FLAT" : ((extlogpen.elpPenStyle & PS_ENDCAP_MASK) == PS_ENDCAP_ROUND ? "ROUND" : ((extlogpen.elpPenStyle & PS_ENDCAP_MASK) == PS_ENDCAP_SQUARE ? "ROUND" : ((extlogpen.elpPenStyle & PS_ENDCAP_MASK) == PS_ENDCAP_SQUARE ? "ROUND" : "???")))), ((extlogpen.elpPenStyle & PS_JOIN_MASK) == PS_JOIN_BEVEL ? "BEVEL" : ((extlogpen.elpPenStyle & PS_JOIN_MASK) == PS_JOIN_MITER ? "MITER" : ((extlogpen.elpPenStyle & PS_JOIN_MASK) == PS_JOIN_ROUND ? "ROUND" : "???"))), extlogpen.elpWidth, (extlogpen.elpBrushStyle == BS_DIBPATTERN ? "DIBPATTERN" : (extlogpen.elpBrushStyle == BS_DIBPATTERNPT ? "DIBPATTERNPT" : (extlogpen.elpBrushStyle == BS_HATCHED ? "HATCHED" : (extlogpen.elpBrushStyle == BS_HOLLOW ? "HOLLOW" : (extlogpen.elpBrushStyle == BS_PATTERN ? "PATTERN" : (extlogpen.elpBrushStyle == BS_SOLID ? "SOLID" : "???"))))))); hrgn = CreateRectRgn (0, 0, 0, 0); if ((flag = GetClipRgn (win32_gc->hdc, hrgn)) == -1) WIN32_API_FAILED ("GetClipRgn"); else if (flag == 0) g_print ("no clip region\n"); else if (flag == 1) { GetRgnBox (hrgn, &rect); g_print ("clip region bbox: %ldx%ld@+%ld+%ld\n", rect.right - rect.left, rect.bottom - rect.top, rect.left, rect.top); } } return win32_gc->hdc; } void gdk_win32_hdc_release (GdkDrawable *drawable, GdkGC *gc, GdkGCValuesMask usage) { GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc; GdkDrawableImplWin32 *impl; HGDIOBJ hpen = NULL; HGDIOBJ hbr = NULL; if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable)) impl = GDK_DRAWABLE_IMPL_WIN32(drawable); else if (GDK_IS_WINDOW (drawable)) impl = ((GdkWindowObject *) drawable)->impl; else if (GDK_IS_PIXMAP (drawable)) impl = ((GdkPixmapObject *) drawable)->impl; if (usage & GDK_GC_FOREGROUND) { if ((hpen = GetCurrentObject (win32_gc->hdc, OBJ_PEN)) == NULL) WIN32_GDI_FAILED ("GetCurrentObject"); if ((hbr = GetCurrentObject (win32_gc->hdc, OBJ_BRUSH)) == NULL) WIN32_GDI_FAILED ("GetCurrentObject"); } if (!RestoreDC (win32_gc->hdc, win32_gc->saved_dc)) WIN32_GDI_FAILED ("RestoreDC"); #if 0 if (colormap_private != NULL && colormap_private->xcolormap->rc_palette && colormap_private->xcolormap->stale) { SelectPalette (win32_gc->hdc, GetStockObject (DEFAULT_PALETTE), FALSE); if (!UnrealizeObject (colormap_private->xcolormap->palette)) WIN32_GDI_FAILED ("UnrealizeObject"); } #endif if (GDK_IS_PIXMAP_IMPL_WIN32 (impl)) { if (!DeleteDC (win32_gc->hdc)) WIN32_GDI_FAILED ("DeleteDC"); } else { ReleaseDC (win32_gc->hwnd, win32_gc->hdc); } if (hpen != NULL) if (!DeleteObject (hpen)) WIN32_GDI_FAILED ("DeleteObject"); if (hbr != NULL) if (!DeleteObject (hbr)) WIN32_GDI_FAILED ("DeleteObject"); win32_gc->hdc = NULL; } /* This function originally from Jean-Edouard Lachand-Robert, and * available at www.codeguru.com. Simplified for our needs, now * handles just one-bit deep bitmaps (in Window parlance, ie those * that GDK calls bitmaps (and not pixmaps), with zero pixels being * transparent. */ /* * BitmapToRegion : Create a region from the "non-transparent" pixels of * a bitmap * Author : Jean-Edouard Lachand-Robert * (http://www.geocities.com/Paris/LeftBank/1160/resume.htm), June 1998. */ HRGN BitmapToRegion (HBITMAP hBmp) { HRGN hRgn = NULL; HDC hMemDC; BITMAP bm; struct { BITMAPINFOHEADER bmiHeader; #if 1 WORD bmiColors[2]; #else RGBQUAD bmiColors[2]; #endif } bmi; VOID *pbits8; HBITMAP hbm8; struct { WORD palVersion; WORD palNumEntries; PALETTEENTRY palPalEntry[2]; } logpal; static HPALETTE bwPalette = NULL; HBITMAP holdBmp; HDC hDC; BITMAP bm8; HBITMAP holdBmp2; DWORD maxRects; RGNDATA *pData; BYTE *p8; int x, y; HRGN h; /* Create a B&W palette */ if (bwPalette == NULL) { /* Create a b&w palette */ logpal.palVersion = 0x300; logpal.palNumEntries = 2; logpal.palPalEntry[0].peRed = logpal.palPalEntry[0].peGreen = logpal.palPalEntry[0].peBlue = 0; logpal.palPalEntry[0].peFlags = 0; logpal.palPalEntry[1].peRed = logpal.palPalEntry[1].peGreen = logpal.palPalEntry[1].peBlue = 0xFF; logpal.palPalEntry[1].peFlags = 0; if ((bwPalette = CreatePalette ((LOGPALETTE *) &logpal)) == NULL) WIN32_GDI_FAILED ("CreatePalette"); } /* Create a memory DC inside which we will scan the bitmap content */ hMemDC = CreateCompatibleDC (NULL); if (!hMemDC) { WIN32_GDI_FAILED ("CreateCompatibleDC"); return NULL; } SelectPalette (hMemDC, bwPalette, FALSE); RealizePalette (hMemDC); /* Get bitmap size */ GetObject(hBmp, sizeof(bm), &bm); /* Create a 8 bits depth bitmap and select it into the memory DC */ bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER); bmi.bmiHeader.biWidth = bm.bmWidth; bmi.bmiHeader.biHeight = bm.bmHeight; bmi.bmiHeader.biPlanes = 1; bmi.bmiHeader.biBitCount = 8; bmi.bmiHeader.biCompression = BI_RGB; bmi.bmiHeader.biSizeImage = 0; bmi.bmiHeader.biXPelsPerMeter = 0; bmi.bmiHeader.biYPelsPerMeter = 0; bmi.bmiHeader.biClrUsed = 2; bmi.bmiHeader.biClrImportant = 2; #if 1 bmi.bmiColors[0] = 0; bmi.bmiColors[1] = 1; hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi, DIB_PAL_COLORS, &pbits8, NULL, 0); #else bmi.bmiColors[0].rgbBlue = bmi.bmiColors[0].rgbGreen = bmi.bmiColors[0].rgbRed = 0x00; bmi.bmiColors[0].rgbReserved = 0x00; bmi.bmiColors[1].rgbBlue = bmi.bmiColors[1].rgbGreen = bmi.bmiColors[1].rgbRed = 0xFF; bmi.bmiColors[0].rgbReserved = 0x00; hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi, DIB_RGB_COLORS, &pbits8, NULL, 0); #endif if (!hbm8) { WIN32_GDI_FAILED ("CreateDIBSection"); DeleteDC (hMemDC); return NULL; } holdBmp = (HBITMAP) SelectObject (hMemDC, hbm8); /* Create a DC just to copy the bitmap into the memory DC*/ hDC = CreateCompatibleDC (hMemDC); if (!hDC) { WIN32_GDI_FAILED ("CreateCompatibleDC"); SelectObject (hMemDC, holdBmp); DeleteObject (hbm8); DeleteDC (hMemDC); return NULL; } /* Get how many bytes per row we have for the bitmap bits */ GetObject (hbm8, sizeof (bm8), &bm8); /* Hans Breuer found a fix to the long-standing erroneous behaviour * on NT 4.0: There seems to be a bug in Win NT 4.0 GDI: scanlines * in bitmaps are dword aligned on both Win95 and NT. In the case of * a bitmap with 22 bytes worth of width, GetObject above returns * with bmWidth == 22. On Win95 bmWidthBytes == 24, as it should be, * but on NT is it 22. We need to correct this here. */ bm8.bmWidthBytes = (((bm8.bmWidthBytes-1)/4)+1)*4; /* dword aligned!! */ /* Copy the bitmap into the memory DC*/ holdBmp2 = (HBITMAP) SelectObject (hDC, hBmp); if (!BitBlt (hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, hDC, 0, 0, SRCCOPY)) { WIN32_GDI_FAILED ("BitBlt"); SelectObject (hDC, holdBmp2); SelectObject (hMemDC, holdBmp); DeleteObject (hbm8); DeleteDC (hMemDC); return NULL; } SelectObject (hDC, holdBmp2); DeleteDC (hDC); /* For better performances, we will use the ExtCreateRegion() * function to create the region. This function take a RGNDATA * structure on entry. We will add rectangles by amount of * ALLOC_UNIT number in this structure. */ #define ALLOC_UNIT 100 maxRects = ALLOC_UNIT; pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects)); pData->rdh.dwSize = sizeof (RGNDATAHEADER); pData->rdh.iType = RDH_RECTANGLES; pData->rdh.nCount = pData->rdh.nRgnSize = 0; SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0); /* Scan each bitmap from bottom to top (the bitmap is inverted vertically)*/ p8 = (BYTE *) pbits8 + (bm8.bmHeight - 1) * bm8.bmWidthBytes; for (y = 0; y < bm.bmHeight; y++) { /* Scan each bitmap row from left to right*/ for (x = 0; x < bm.bmWidth; x++) { /* Search for a continuous range of "non transparent pixels"*/ int x0 = x; BYTE *p = p8 + x; while (x < bm.bmWidth) { if (*p == 0) /* This pixel is "transparent"*/ break; p++; x++; } if (x > x0) { RECT *pr; /* Add the pixels (x0, y) to (x, y+1) as a new rectangle * in the region */ if (pData->rdh.nCount >= maxRects) { maxRects += ALLOC_UNIT; pData = g_realloc (pData, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects)); } pr = (RECT *) &pData->Buffer; SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1); if (x0 < pData->rdh.rcBound.left) pData->rdh.rcBound.left = x0; if (y < pData->rdh.rcBound.top) pData->rdh.rcBound.top = y; if (x > pData->rdh.rcBound.right) pData->rdh.rcBound.right = x; if (y+1 > pData->rdh.rcBound.bottom) pData->rdh.rcBound.bottom = y+1; pData->rdh.nCount++; /* On Windows98, ExtCreateRegion() may fail if the * number of rectangles is too large (ie: > * 4000). Therefore, we have to create the region by * multiple steps. */ if (pData->rdh.nCount == 2000) { HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData); if (hRgn) { CombineRgn(hRgn, hRgn, h, RGN_OR); DeleteObject(h); } else hRgn = h; pData->rdh.nCount = 0; SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0); } } } /* Go to next row (remember, the bitmap is inverted vertically)*/ p8 -= bm8.bmWidthBytes; } /* Create or extend the region with the remaining rectangles*/ h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects), pData); if (hRgn) { CombineRgn (hRgn, hRgn, h, RGN_OR); DeleteObject (h); } else hRgn = h; /* Clean up*/ g_free (pData); SelectObject(hMemDC, holdBmp); DeleteObject (hbm8); DeleteDC (hMemDC); return hRgn; } #ifdef G_ENABLE_DEBUG gchar * gdk_win32_cap_style_to_string (GdkCapStyle cap_style) { switch (cap_style) { #define CASE(x) case x: return #x + strlen ("GDK_CAP_") CASE (GDK_CAP_NOT_LAST); CASE (GDK_CAP_BUTT); CASE (GDK_CAP_ROUND); CASE (GDK_CAP_PROJECTING); #undef CASE default: return ("illegal GdkCapStyle value"); } /* NOTREACHED */ return NULL; } gchar * gdk_win32_fill_style_to_string (GdkFill fill) { switch (fill) { #define CASE(x) case x: return #x + strlen ("GDK_") CASE (GDK_SOLID); CASE (GDK_TILED); CASE (GDK_STIPPLED); CASE (GDK_OPAQUE_STIPPLED); #undef CASE default: return ("illegal GdkFill value"); } /* NOTREACHED */ return NULL; } gchar * gdk_win32_function_to_string (GdkFunction function) { switch (function) { #define CASE(x) case x: return #x + strlen ("GDK_") CASE (GDK_COPY); CASE (GDK_INVERT); CASE (GDK_XOR); CASE (GDK_CLEAR); CASE (GDK_AND); CASE (GDK_AND_REVERSE); CASE (GDK_AND_INVERT); CASE (GDK_NOOP); CASE (GDK_OR); CASE (GDK_EQUIV); CASE (GDK_OR_REVERSE); CASE (GDK_COPY_INVERT); CASE (GDK_OR_INVERT); CASE (GDK_NAND); CASE (GDK_SET); #undef CASE default: return ("illegal GdkFunction value"); } /* NOTREACHED */ return NULL; } gchar * gdk_win32_join_style_to_string (GdkJoinStyle join_style) { switch (join_style) { #define CASE(x) case x: return #x + strlen ("GDK_JOIN_") CASE (GDK_JOIN_MITER); CASE (GDK_JOIN_ROUND); CASE (GDK_JOIN_BEVEL); #undef CASE default: return ("illegal GdkJoinStyle value"); } /* NOTREACHED */ return NULL; } gchar * gdk_win32_line_style_to_string (GdkLineStyle line_style) { switch (line_style) { #define CASE(x) case x: return #x + strlen ("GDK_LINE_") CASE(GDK_LINE_SOLID); CASE(GDK_LINE_ON_OFF_DASH); CASE(GDK_LINE_DOUBLE_DASH); #undef CASE default: return ("illegal GdkLineStyle value"); } /* NOTREACHED */ return NULL; } #endif