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gtk/gdk/win32/gdkgc-win32.c
Tor Lillqvist bc1ec5c14a Massive changes. Too many to list here, but I'll try a summary: 
2002-02-17  Tor Lillqvist  <tml@iki.fi>

	* gdk/win32/*.c: Massive changes. Too many to list here, but I'll
	try a summary:

	1) Unify GdkPixmap and GdkImage implementation: For each
	GdkPixmap, allocate a GdkImage, and vice versa.
	GdkPixmapImplWin32Data has a pointer to the GdkImage.
	GdkImage::windowing_data is a pointer to the GdkPixmap.

	This simplifies many pixmap and image related functions a lot, and
	reduces duplicated code snippets. For instance, there is only one
	place in gdk/win32 where CreateDIBSection() is called, in the
	function _gdk_win32_new_pixmap(). Converting a bitmap (GdkPixmap)
	to a Windows region is almost trivial, with the bitmap bits being
	readily accessible in the associated GdkImage.

	All blitting between GdkPixmaps, GdkWindows and GdkImages goes
	through handled the _gdk_win32_blit() function, which calls
	different functions to handle the cases of blitting from pixmaps,
	inside windows (scrolling), or from windows, which all require
	somewhat different handling.

	2) Support 256-color mode. This has long been very broken, now it
	works more or less OK. Keep the logical palette for each colormap
	as small as possible while allocating and freeing colors. Select
	and realize the logical palette associated with a GdkColormap into
	a DC before drawing or blitting.

	When the display is in 256-color mode, make it possible for the
	user to override the size of the palette(s) used with either the
	GDK_WIN32_MAX_COLORS environment variable, or a -max-colors
	command line option. It is possible to reduce the palette size all
	the way down to using just the 16 static colors (which causes the
	system visual to be of type GDK_VISUAL_STATIC_COLOR. This could
	possibly be useful if one desperately wants to avoid color
	flashing. (Note that in order for this to work properly, an as of
	yet not commited fix to gdkrgb.c is needed.)

	Handle the palette messages. On WM_PALETTECHANGED, call
	UpdateColors() for the given window hierarchy. Do this only if a
	window in some other top-level window hierarchy caused the palette
	change (realized a palette). Do this max five times in a row (an
	arbitrarily chosen limit), though, otherwise redraw by generating
	expose events. On WM_QUERYNEWPALETTE, cause a redraw of the whole
	window hierarchy by generating GDK_EXPOSE events.

	3) Code cleanup in general. For instance, remove the "emulated"
	X11 structs ColormapStruct, Visual and XStandardColormap. Use the
	new GDK_DEBUG_* flags for debugging output in the relevant source
	files. Remove the unused colormap hash table in gdkcolor-win32.c

	4) Plug some resource leaks.

2002-02-14  Tor Lillqvist  <tml@iki.fi>

	* gdk/win32/gdkdnd-win32.c (gdk_dropfiles_filter): Use
	g_filename_to_uri() to actually create legal URIs in the
	text/uri-list data.
2002-02-17 00:25:05 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 1998-2002 Tor Lillqvist
*
* 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 <string.h>
#include "gdkgc.h"
#include "gdkfont.h"
#include "gdkpixmap.h"
#include "gdkregion-generic.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 (GC, g_print ("{"));
if (mask & GDK_GC_FOREGROUND)
{
win32_gc->foreground = values->foreground.pixel;
win32_gc->values_mask |= GDK_GC_FOREGROUND;
GDK_NOTE (GC, (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 (GC, (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 (GC, (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 (GC, (g_print ("%sfont=NULL", s),
s = ","));
}
}
if (mask & GDK_GC_FUNCTION)
{
GDK_NOTE (GC, (g_print ("%srop2=", s),
s = ","));
switch (values->function)
{
#define CASE(x,y) case GDK_##x: win32_gc->rop2 = R2_##y; GDK_NOTE (GC, g_print (#y)); break
CASE (COPY, COPYPEN);
CASE (INVERT, NOT);
CASE (XOR, XORPEN);
CASE (CLEAR, BLACK);
CASE (AND, MASKPEN);
CASE (AND_REVERSE, MASKPENNOT);
CASE (AND_INVERT, MASKNOTPEN);
CASE (NOOP, NOP);
CASE (OR, MERGEPEN);
CASE (EQUIV, NOTXORPEN);
CASE (OR_REVERSE, MERGEPENNOT);
CASE (COPY_INVERT, NOTCOPYPEN);
CASE (OR_INVERT, MERGENOTPEN);
CASE (NAND, NOTMASKPEN);
CASE (NOR, NOTMERGEPEN);
CASE (SET, WHITE);
#undef CASE
}
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 (GC, (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 (GC,
(g_print ("%stile=%p", s,
GDK_PIXMAP_HBITMAP (win32_gc->tile)),
s = ","));
}
else
{
win32_gc->values_mask &= ~GDK_GC_TILE;
GDK_NOTE (GC, (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 (GC,
(g_print ("%sstipple=%p", s,
GDK_PIXMAP_HBITMAP (win32_gc->stipple)),
s = ","));
}
else
{
win32_gc->values_mask &= ~GDK_GC_STIPPLE;
GDK_NOTE (GC, (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 =
_gdk_win32_bitmap_to_region (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 (GC, (g_print ("%sclip=%p", s, 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 (GC, (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 (GC, (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 (GC, (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 (GC, (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 (GC, (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 (GC, (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 (GC, (g_print ("%spw=%d", s, win32_gc->pen_width),
s = ","));
}
if (mask & GDK_GC_LINE_STYLE)
{
switch (values->line_style)
{
case GDK_LINE_SOLID:
win32_gc->pen_style &= ~(PS_STYLE_MASK);
GDK_NOTE (GC, (g_print ("%sps|=LINE_SOLID", s),
s = ","));
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 (GC, (g_print ("%sps|=DASH", s),
s = ","));
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);
switch (values->cap_style)
{
case GDK_CAP_NOT_LAST: /* ??? */
case GDK_CAP_BUTT:
GDK_NOTE (GC, (g_print ("%sps|=ENDCAP_FLAT", s),
s = ","));
win32_gc->pen_style |= PS_ENDCAP_FLAT;
break;
case GDK_CAP_ROUND:
GDK_NOTE (GC, (g_print ("%sps|=ENDCAP_ROUND", s),
s = ","));
win32_gc->pen_style |= PS_ENDCAP_ROUND;
break;
case GDK_CAP_PROJECTING:
GDK_NOTE (GC, (g_print ("%sps|=ENDCAP_SQUARE", s),
s = ","));
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);
switch (values->join_style)
{
case GDK_JOIN_MITER:
GDK_NOTE (GC, (g_print ("%sps|=JOIN_MITER", s),
s = ","));
win32_gc->pen_style |= PS_JOIN_MITER;
break;
case GDK_JOIN_ROUND:
GDK_NOTE (GC, (g_print ("%sps|=JOIN_ROUND", s),
s = ","));
win32_gc->pen_style |= PS_JOIN_ROUND;
break;
case GDK_JOIN_BEVEL:
GDK_NOTE (GC, (g_print ("%sps|=JOIN_BEVEL", s),
s = ","));
win32_gc->pen_style |= PS_JOIN_BEVEL;
break;
}
win32_gc->values_mask |= GDK_GC_JOIN_STYLE;
}
GDK_NOTE (GC, 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 (GC, g_print ("_gdk_win32_gc_new: "));
gdk_win32_gc_values_to_win32values (values, mask, win32_gc);
win32_gc->hwnd = NULL;
GDK_NOTE (GC, 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 (GC, 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 (GC, g_print ("gdk_win32_gc_set_dashes: not fully supported\n"));
win32_gc->pen_style |= PS_SOLID;
return;
}
win32_gc->pen_style = PS_COSMETIC; /* ??? */
switch (n)
{
case 2:
if ((dash_list[0] == dash_list[1]) && (dash_list[0] > 2))
{
win32_gc->pen_style |= PS_DASH;
GDK_NOTE (GC, 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 (GC, g_print ("gdk_win32_gc_set_dashes: PS_DOT (%d,%d)\n",
dash_list[0], dash_list[1]));
}
break;
case 4:
win32_gc->pen_style |= PS_DASHDOT;
GDK_NOTE (GC, 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]));
break;
case 6:
win32_gc->pen_style |= PS_DASHDOTDOT;
GDK_NOTE (GC, 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]));
break;
default:
win32_gc->pen_style |= PS_DASH;
GDK_NOTE (GC, g_print ("gdk_win32_gc_set_dashes: no guess for %d dashes\n", n));
break;
}
}
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 (GC,
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 (GC, 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 (GC, 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 (GC, 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_win32_colormap_color (GdkColormap *colormap,
gulong pixel)
{
const GdkVisual *visual;
GdkColormapPrivateWin32 *colormap_private;
guchar r, g, b;
if (colormap == NULL)
return DIBINDEX (pixel);
colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
g_assert (colormap_private != NULL);
visual = colormap->visual;
switch (visual->type)
{
case GDK_VISUAL_GRAYSCALE:
case GDK_VISUAL_PSEUDO_COLOR:
case GDK_VISUAL_STATIC_COLOR:
return PALETTEINDEX (pixel);
case GDK_VISUAL_TRUE_COLOR:
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);
default:
g_assert_not_reached ();
return 0;
}
}
static void
predraw_set_foreground (GdkGC *gc,
GdkColormap *colormap,
gboolean *ok)
{
COLORREF fg;
LOGBRUSH logbrush;
HPEN hpen;
HBRUSH hbr;
GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
GdkColormapPrivateWin32 *colormap_private;
gint k;
if (colormap &&
(colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
colormap->visual->type == GDK_VISUAL_STATIC_COLOR))
{
colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
g_assert (colormap_private != NULL);
if (!(win32_gc->holdpal = SelectPalette (win32_gc->hdc, colormap_private->hpal, FALSE)))
WIN32_GDI_FAILED ("SelectPalette"), *ok = FALSE;
else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
WIN32_GDI_FAILED ("RealizePalette"), *ok = FALSE;
else if (k > 0)
GDK_NOTE (COLORMAP, g_print ("predraw_set_foreground: realized %p: %d colors\n",
colormap_private->hpal, k));
}
fg = _gdk_win32_colormap_color (colormap, win32_gc->foreground);
GDK_NOTE (GC, g_print ("predraw_set_foreground: fg=%06lx\n", fg));
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"), *ok = FALSE;
if (*ok && 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)
{
HBRUSH old_hbr = SelectObject (win32_gc->hdc, hbr);
if (old_hbr == NULL)
WIN32_GDI_FAILED ("SelectObject"), *ok = FALSE;
}
}
static 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_win32_colormap_color (colormap, win32_gc->background);
if (SetBkColor (win32_gc->hdc, bg) == CLR_INVALID)
WIN32_GDI_FAILED ("SetBkColor"), *ok = FALSE;
}
else
{
if (!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 = NULL;
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 = GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
else if (GDK_IS_PIXMAP (drawable))
impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
else
g_assert_not_reached ();
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))
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 (GC, 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 = _gdk_win32_bitmap_to_region (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;
}
#ifdef G_ENABLE_DEBUG
if (_gdk_debug_flags & GDK_DEBUG_GC)
{
HGDIOBJ obj;
LOGBRUSH logbrush;
EXTLOGPEN extlogpen;
HRGN hrgn;
RECT rect;
g_print ("gdk_win32_hdc_get: %p\n", 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);
}
DeleteObject (hrgn);
}
#endif
return win32_gc->hdc;
}
void
gdk_win32_hdc_release (GdkDrawable *drawable,
GdkGC *gc,
GdkGCValuesMask usage)
{
GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
GdkDrawableImplWin32 *impl = NULL;
HGDIOBJ hpen = NULL;
HGDIOBJ hbr = NULL;
GDK_NOTE (GC, g_print ("gdk_win32_hdc_release: %p\n", win32_gc->hdc));
if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
impl = GDK_DRAWABLE_IMPL_WIN32(drawable);
else if (GDK_IS_WINDOW (drawable))
impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
else if (GDK_IS_PIXMAP (drawable))
impl = GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
else
g_assert_not_reached ();
if (win32_gc->holdpal != NULL)
{
gint k;
if (!SelectPalette (win32_gc->hdc, win32_gc->holdpal, FALSE))
WIN32_GDI_FAILED ("SelectPalette");
else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
WIN32_GDI_FAILED ("RealizePalette");
else if (k > 0)
GDK_NOTE (COLORMAP, g_print ("gdk_win32_hdc_release: realized %p: %d colors\n",
win32_gc->holdpal, k));
win32_gc->holdpal = NULL;
}
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 (GDK_IS_PIXMAP_IMPL_WIN32 (impl))
{
if (!DeleteDC (win32_gc->hdc))
WIN32_GDI_FAILED ("DeleteDC");
}
else
{
if (!ReleaseDC (win32_gc->hwnd, win32_gc->hdc))
WIN32_GDI_FAILED ("ReleaseDC");
}
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, not sure
* how much of the original code left any longer. Now handles just
* one-bit deep bitmaps (in Window parlance, ie those that GDK calls
* bitmaps (and not pixmaps), with zero pixels being transparent.
*/
/* _gdk_win32_bitmap_to_region : Create a region from the
* "non-transparent" pixels of a bitmap.
*/
HRGN
_gdk_win32_bitmap_to_region (GdkPixmap *pixmap)
{
HRGN hRgn = NULL;
HRGN h;
DWORD maxRects;
RGNDATA *pData;
GdkImage *image;
guchar *p;
gint x, y;
image = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->image;
g_assert (image->depth == 1);
/* 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);
for (y = 0; y < image->height; y++)
{
/* Scan each bitmap row from left to right*/
p = (guchar *) image->mem + y * image->bpl;
for (x = 0; x < image->width; x++)
{
/* Search for a continuous range of "non transparent pixels"*/
gint x0 = x;
while (x < image->width)
{
if ((((p[x/8])>>(7-(x%8)))&1) == 0)
/* This pixel is "transparent"*/
break;
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);
}
}
}
}
/* 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);
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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