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gtk/gdk/win32/gdkgc-win32.c
Hans Breuer 0f6d1b4a27 updated 
2001-03-10  Hans Breuer  <hans@breuer.org>

	* gdk/gdk.def : updated

	* gdk/win32/gdkgc-win32.c : pixmaps are visible again, due
	to offseting the clip_mask at the right place

	* gdk/win32/gdkwindow-win32.c : don't create background brushes
	for all the gdkClasses, especially not for the input_only case.
	Otherwise flickering wont be avoidable, because we don't get
	WM_ERASEBKGND message for these windows.

	* gdk/win32/gdkevents-win32.c : initialize event->expose.region
	and fixed massive redraw problems apparently triggered by Alexanders
	recent change. Not fully understood the GDK_EXPOSE / WM_PAINT handling
	but it seems to work quite well :-)

	* gdk/win32/gdkprivate-win32.h : added _gdk_window_process_expose
	prototype
2001-03-10 18:13:03 +00:00

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/* 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 <string.h>
#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 (sw != 8 || sh != 8)
{
/* 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
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)
{
win32_gc->pen_style &= ~(PS_STYLE_MASK);
GDK_NOTE (MISC, (g_print ("%sps|=", s),
s = ","));
switch (values->line_style)
{
case GDK_LINE_SOLID:
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: /* ??? */
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);
win32_gc->pen_style &= ~(PS_STYLE_MASK);
win32_gc->pen_style |= PS_DASH;
/*
* 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;
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;
COLORREF bg = gdk_colormap_color (colormap, win32_gc->background);
if (SetBkColor (win32_gc->hdc, bg) == CLR_INVALID)
WIN32_GDI_FAILED ("SetBkColor"), *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;
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_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
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