mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-06 08:40:08 +00:00
ffcd60398a
2002-01-12 Tor Lillqvist <tml@iki.fi> Fixes contributed by Archaeopteryx Software: This is a first small part of their changes. Will commit more later. * gdk/win32/*.c: Add some more checks for failed GDI calls. If a call fails, don't use bogus values. * gdk/win32/gdkcursor-win32.c (_gdk_win32_data_to_wcursor): Plug memory leak: g_free() the AND and XOR bitmaps after use. (_gdk_cursor_destroy): If we are destroying the current Windows cursor, set the Windows cursor to none first. * gdk/win32/gdkgc-win32.c (predraw_set_foreground): Delete the old brush that was in the DC, like the win32-procution branch does. I guess this plugs a resource leak? With the HDC cache, the old brush might be something we created ourselves, and not a stock brush. And it doesn't do any harm to call DeleteObject on stock brushes. * gdk/win32/gdkwindow-win32.c (gdk_window_impl_win32_finalize): If the window has a cursor which is the current Windows cursor, before destroying it set the current Windows cursor to none. (gdk_window_set_cursor): Also here, if destroying the current Windows cursor, set the current Windows cursor to none first. (gdk_window_get_pointer): Revamp logic.
1431 lines
35 KiB
C
1431 lines
35 KiB
C
/* 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 <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
|
|
#include "gdkcolor.h"
|
|
#include "gdkinternals.h"
|
|
#include "gdkprivate-win32.h"
|
|
|
|
static void free_colormap (Colormap colormap);
|
|
|
|
static gint gdk_colormap_match_color (GdkColormap *cmap,
|
|
GdkColor *color,
|
|
const gchar *available);
|
|
static void gdk_colormap_add (GdkColormap *cmap);
|
|
static void gdk_colormap_remove (GdkColormap *cmap);
|
|
static guint gdk_colormap_hash (Colormap *cmap);
|
|
static gboolean gdk_colormap_equal (Colormap *a,
|
|
Colormap *b);
|
|
|
|
static void gdk_colormap_init (GdkColormap *colormap);
|
|
static void gdk_colormap_class_init (GdkColormapClass *klass);
|
|
static void gdk_colormap_finalize (GObject *object);
|
|
|
|
static gpointer parent_class = NULL;
|
|
|
|
static GHashTable *colormap_hash = NULL;
|
|
|
|
GType
|
|
gdk_colormap_get_type (void)
|
|
{
|
|
static GType object_type = 0;
|
|
|
|
if (!object_type)
|
|
{
|
|
static const GTypeInfo object_info =
|
|
{
|
|
sizeof (GdkColormapClass),
|
|
(GBaseInitFunc) NULL,
|
|
(GBaseFinalizeFunc) NULL,
|
|
(GClassInitFunc) gdk_colormap_class_init,
|
|
NULL, /* class_finalize */
|
|
NULL, /* class_data */
|
|
sizeof (GdkColormap),
|
|
0, /* n_preallocs */
|
|
(GInstanceInitFunc) gdk_colormap_init,
|
|
};
|
|
|
|
object_type = g_type_register_static (G_TYPE_OBJECT,
|
|
"GdkColormap",
|
|
&object_info, 0);
|
|
}
|
|
|
|
return object_type;
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_init (GdkColormap *colormap)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
private = g_new (GdkColormapPrivateWin32, 1);
|
|
|
|
colormap->windowing_data = private;
|
|
|
|
private->hash = NULL;
|
|
private->last_sync_time = 0;
|
|
private->info = NULL;
|
|
|
|
colormap->size = 0;
|
|
colormap->colors = NULL;
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_class_init (GdkColormapClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
object_class->finalize = gdk_colormap_finalize;
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_finalize (GObject *object)
|
|
{
|
|
GdkColormap *colormap = GDK_COLORMAP (object);
|
|
GdkColormapPrivateWin32 *private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
gdk_colormap_remove (colormap);
|
|
|
|
free_colormap (private->xcolormap);
|
|
|
|
if (private->hash)
|
|
g_hash_table_destroy (private->hash);
|
|
|
|
g_free (private->info);
|
|
g_free (colormap->colors);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
alloc_color_cells(Colormap colormap,
|
|
gboolean contig,
|
|
unsigned long plane_masks_return[],
|
|
unsigned int nplanes,
|
|
unsigned long pixels_return[],
|
|
unsigned int npixels)
|
|
{
|
|
unsigned int i, nfree, iret;
|
|
|
|
nfree = 0;
|
|
for (i = 0; i < colormap->size && nfree < npixels; i++)
|
|
if (!colormap->in_use[i])
|
|
nfree++;
|
|
|
|
if (colormap->size + npixels - nfree > colormap->sizepalette)
|
|
{
|
|
g_warning ("alloc_color_cells: too large palette: %d",
|
|
colormap->size + npixels);
|
|
return FALSE;
|
|
}
|
|
|
|
iret = 0;
|
|
for (i = 0; i < colormap->size && iret < npixels; i++)
|
|
if (!colormap->in_use[i])
|
|
{
|
|
colormap->in_use[i] = TRUE;
|
|
pixels_return[iret] = i;
|
|
iret++;
|
|
}
|
|
|
|
if (nfree < npixels)
|
|
{
|
|
int nmore = npixels - nfree;
|
|
|
|
/* I don't understand why, if the code below in #if 0 is
|
|
enabled, gdkrgb fails miserably. The palette doesn't get
|
|
realized correctly. There doesn't seem to be any harm done by
|
|
keeping this code out, either. */
|
|
#ifdef SOME_STRANGE_BUG
|
|
if (!ResizePalette (colormap->palette, colormap->size + nmore))
|
|
{
|
|
WIN32_GDI_FAILED ("ResizePalette")
|
|
return FALSE;
|
|
}
|
|
g_print("alloc_color_cells: %#x to %d\n",
|
|
colormap->palette, colormap->size + nmore);
|
|
#endif
|
|
for (i = colormap->size; i < colormap->size + nmore; i++)
|
|
{
|
|
pixels_return[iret] = i;
|
|
iret++;
|
|
colormap->in_use[i] = TRUE;
|
|
}
|
|
#ifdef SOME_STRANGE_BUG
|
|
colormap->size += nmore;
|
|
#endif
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* The following functions are from Tk8.0, but heavily modified.
|
|
Here are tk's licensing terms. I hope these terms don't conflict
|
|
with the GNU Lesser General Public License? They shouldn't, as
|
|
they are looser that the GLPL, yes? */
|
|
|
|
/*
|
|
This software is copyrighted by the Regents of the University of
|
|
California, Sun Microsystems, Inc., and other parties. The following
|
|
terms apply to all files associated with the software unless explicitly
|
|
disclaimed in individual files.
|
|
|
|
The authors hereby grant permission to use, copy, modify, distribute,
|
|
and license this software and its documentation for any purpose, provided
|
|
that existing copyright notices are retained in all copies and that this
|
|
notice is included verbatim in any distributions. No written agreement,
|
|
license, or royalty fee is required for any of the authorized uses.
|
|
Modifications to this software may be copyrighted by their authors
|
|
and need not follow the licensing terms described here, provided that
|
|
the new terms are clearly indicated on the first page of each file where
|
|
they apply.
|
|
|
|
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
|
|
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
|
|
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
|
|
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
|
|
IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
|
|
NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
|
|
MODIFICATIONS.
|
|
|
|
GOVERNMENT USE: If you are acquiring this software on behalf of the
|
|
U.S. government, the Government shall have only "Restricted Rights"
|
|
in the software and related documentation as defined in the Federal
|
|
Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you
|
|
are acquiring the software on behalf of the Department of Defense, the
|
|
software shall be classified as "Commercial Computer Software" and the
|
|
Government shall have only "Restricted Rights" as defined in Clause
|
|
252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
|
|
authors grant the U.S. Government and others acting in its behalf
|
|
permission to use and distribute the software in accordance with the
|
|
terms specified in this license.
|
|
*/
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* XAllocColor --
|
|
*
|
|
* Find the closest available color to the specified XColor.
|
|
*
|
|
* Results:
|
|
* Updates the color argument and returns 1 on success. Otherwise
|
|
* returns 0.
|
|
*
|
|
* Side effects:
|
|
* Allocates a new color in the palette.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
|
|
static int
|
|
alloc_color(Colormap colormap,
|
|
XColor *color,
|
|
guint *pixelp)
|
|
{
|
|
PALETTEENTRY entry, closeEntry;
|
|
unsigned int i;
|
|
|
|
entry = *color;
|
|
entry.peFlags = 0;
|
|
|
|
if (colormap->rc_palette)
|
|
{
|
|
COLORREF newPixel, closePixel;
|
|
UINT index;
|
|
|
|
/*
|
|
* Find the nearest existing palette entry.
|
|
*/
|
|
|
|
newPixel = RGB (entry.peRed, entry.peGreen, entry.peBlue);
|
|
index = GetNearestPaletteIndex (colormap->palette, newPixel);
|
|
GetPaletteEntries (colormap->palette, index, 1, &closeEntry);
|
|
closePixel = RGB (closeEntry.peRed, closeEntry.peGreen,
|
|
closeEntry.peBlue);
|
|
|
|
if (newPixel != closePixel)
|
|
{
|
|
/* Not a perfect match. */
|
|
if (!colormap->in_use[index])
|
|
{
|
|
/* It was a free'd entry anyway, so we can use it, and
|
|
set it to the correct color. */
|
|
if (SetPaletteEntries (colormap->palette, index, 1, &entry) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
}
|
|
else
|
|
{
|
|
/* The close entry found is in use, so search for a
|
|
unused slot. */
|
|
|
|
for (i = 0; i < colormap->size; i++)
|
|
if (!colormap->in_use[i])
|
|
{
|
|
/* A free slot, use it. */
|
|
if (SetPaletteEntries (colormap->palette,
|
|
index, 1, &entry) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
index = i;
|
|
break;
|
|
}
|
|
if (i == colormap->size)
|
|
{
|
|
/* No free slots found. If the palette isn't maximal
|
|
yet, grow it. */
|
|
if (colormap->size == colormap->sizepalette)
|
|
{
|
|
/* The palette is maximal, and no free slots available,
|
|
so use the close entry, then, dammit. */
|
|
*color = closeEntry;
|
|
}
|
|
else
|
|
{
|
|
/* There is room to grow the palette. */
|
|
index = colormap->size;
|
|
colormap->size++;
|
|
if (!ResizePalette (colormap->palette, colormap->size))
|
|
WIN32_GDI_FAILED ("ResizePalette");
|
|
if (SetPaletteEntries (colormap->palette, index, 1, &entry) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
}
|
|
}
|
|
}
|
|
colormap->stale = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* We got a match, so use it. */
|
|
}
|
|
|
|
*pixelp = index;
|
|
colormap->in_use[index] = TRUE;
|
|
#if 0
|
|
g_print("alloc_color from %#x: index %d for %02x %02x %02x\n",
|
|
colormap->palette, index,
|
|
entry.peRed, entry.peGreen, entry.peBlue);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
/*
|
|
* Determine what color will actually be used on non-colormap systems.
|
|
*/
|
|
*pixelp = GetNearestColor (gdk_display_hdc, RGB(entry.peRed, entry.peGreen, entry.peBlue));
|
|
|
|
color->peRed = GetRValue (*pixelp);
|
|
color->peGreen = GetGValue (*pixelp);
|
|
color->peBlue = GetBValue (*pixelp);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* XFreeColors --
|
|
*
|
|
* Deallocate a block of colors.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* Removes entries for the current palette and compacts the
|
|
* remaining set.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
|
|
static void
|
|
free_colors (Colormap colormap,
|
|
gulong *pixels,
|
|
gint npixels,
|
|
gulong planes)
|
|
{
|
|
gint i;
|
|
PALETTEENTRY entries[256];
|
|
|
|
/*
|
|
* We don't have to do anything for non-palette devices.
|
|
*/
|
|
|
|
if (colormap->rc_palette)
|
|
{
|
|
int npal;
|
|
int lowestpixel = 256;
|
|
int highestpixel = -1;
|
|
|
|
npal = GetPaletteEntries (colormap->palette, 0, 256, entries);
|
|
for (i = 0; i < npixels; i++)
|
|
{
|
|
int pixel = pixels[i];
|
|
|
|
if (pixel < lowestpixel)
|
|
lowestpixel = pixel;
|
|
if (pixel > highestpixel)
|
|
highestpixel = pixel;
|
|
|
|
colormap->in_use[pixel] = FALSE;
|
|
|
|
entries[pixel] = entries[0];
|
|
}
|
|
#if 0
|
|
if (SetPaletteEntries (colormap->palette, lowestpixel,
|
|
highestpixel - lowestpixel + 1,
|
|
entries + lowestpixel) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
#endif
|
|
colormap->stale = TRUE;
|
|
#if 0
|
|
g_print("free_colors %#x lowestpixel = %d, highestpixel = %d\n",
|
|
colormap->palette, lowestpixel, highestpixel);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* XCreateColormap --
|
|
*
|
|
* Allocate a new colormap.
|
|
*
|
|
* Results:
|
|
* Returns a newly allocated colormap.
|
|
*
|
|
* Side effects:
|
|
* Allocates an empty palette and color list.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
|
|
static Colormap
|
|
create_colormap (HWND w,
|
|
Visual *visual,
|
|
gboolean alloc)
|
|
{
|
|
char logPalBuf[sizeof(LOGPALETTE) + 256 * sizeof(PALETTEENTRY)];
|
|
LOGPALETTE *logPalettePtr;
|
|
Colormap colormap;
|
|
guint i;
|
|
HPALETTE sysPal;
|
|
HDC hdc;
|
|
|
|
/* Should the alloc parameter do something? */
|
|
|
|
|
|
/* Allocate a starting palette with all of the reserved colors. */
|
|
|
|
logPalettePtr = (LOGPALETTE *) logPalBuf;
|
|
logPalettePtr->palVersion = 0x300;
|
|
sysPal = (HPALETTE) GetStockObject (DEFAULT_PALETTE);
|
|
logPalettePtr->palNumEntries =
|
|
GetPaletteEntries (sysPal, 0, 256, logPalettePtr->palPalEntry);
|
|
|
|
colormap = (Colormap) g_new (ColormapStruct, 1);
|
|
colormap->size = logPalettePtr->palNumEntries;
|
|
colormap->stale = TRUE;
|
|
colormap->palette = CreatePalette (logPalettePtr);
|
|
hdc = GetDC (NULL);
|
|
colormap->rc_palette = ((GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE) != 0);
|
|
if (colormap->rc_palette)
|
|
{
|
|
colormap->sizepalette = GetDeviceCaps (hdc, SIZEPALETTE);
|
|
colormap->in_use = g_new (gboolean, colormap->sizepalette);
|
|
/* Mark static colors in use. */
|
|
for (i = 0; i < logPalettePtr->palNumEntries; i++)
|
|
colormap->in_use[i] = TRUE;
|
|
/* Mark rest not in use */
|
|
for (i = logPalettePtr->palNumEntries; i < colormap->sizepalette; i++)
|
|
colormap->in_use[i] = FALSE;
|
|
}
|
|
if (!ReleaseDC (NULL, hdc))
|
|
WIN32_GDI_FAILED ("ReleaseDC");
|
|
|
|
return colormap;
|
|
}
|
|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* XFreeColormap --
|
|
*
|
|
* Frees the resources associated with the given colormap.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* Deletes the palette associated with the colormap. Note that
|
|
* the palette must not be selected into a device context when
|
|
* this occurs.
|
|
*
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
|
|
static void
|
|
free_colormap(Colormap colormap)
|
|
|
|
{
|
|
if (!DeleteObject (colormap->palette))
|
|
{
|
|
g_error ("Unable to free colormap, palette is still selected.");
|
|
}
|
|
g_free (colormap);
|
|
}
|
|
|
|
static Colormap
|
|
default_colormap ()
|
|
{
|
|
static Colormap colormap;
|
|
|
|
if (colormap)
|
|
return colormap;
|
|
|
|
colormap = create_colormap ( NULL, NULL, FALSE);
|
|
return colormap;
|
|
}
|
|
|
|
GdkColormap*
|
|
gdk_colormap_new (GdkVisual *visual,
|
|
gboolean private_cmap)
|
|
{
|
|
GdkColormap *colormap;
|
|
GdkColormapPrivateWin32 *private;
|
|
Visual *xvisual;
|
|
int i;
|
|
|
|
g_return_val_if_fail (visual != NULL, NULL);
|
|
|
|
colormap = g_object_new (gdk_colormap_get_type (), NULL);
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
colormap->visual = visual;
|
|
|
|
xvisual = ((GdkVisualPrivate*) visual)->xvisual;
|
|
|
|
colormap->size = visual->colormap_size;
|
|
|
|
switch (visual->type)
|
|
{
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
private->info = g_new0 (GdkColorInfo, colormap->size);
|
|
colormap->colors = g_new (GdkColor, colormap->size);
|
|
|
|
private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
|
|
(GEqualFunc) gdk_color_equal);
|
|
|
|
private->private_val = private_cmap;
|
|
private->xcolormap = create_colormap (gdk_root_window, xvisual, private_cmap);
|
|
|
|
if (private_cmap)
|
|
{
|
|
PALETTEENTRY pal[256];
|
|
guint npal;
|
|
|
|
npal = GetPaletteEntries (private->xcolormap->palette, 0, colormap->size, pal);
|
|
for (i = 0; i < colormap->size; i++)
|
|
{
|
|
colormap->colors[i].pixel = i;
|
|
if (i >= npal)
|
|
{
|
|
colormap->colors[i].red =
|
|
colormap->colors[i].green =
|
|
colormap->colors[i].blue = 0;
|
|
}
|
|
else
|
|
{
|
|
colormap->colors[i].red = (pal[i].peRed * 65535) / 255;
|
|
colormap->colors[i].green = (pal[i].peGreen * 65525) / 255;
|
|
colormap->colors[i].blue = (pal[i].peBlue * 65535) / 255;
|
|
}
|
|
}
|
|
gdk_colormap_change (colormap, colormap->size);
|
|
}
|
|
break;
|
|
|
|
case GDK_VISUAL_STATIC_GRAY:
|
|
case GDK_VISUAL_STATIC_COLOR:
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
private->private_val = FALSE;
|
|
private->xcolormap = create_colormap (gdk_root_window,
|
|
xvisual, FALSE);
|
|
break;
|
|
|
|
case GDK_VISUAL_DIRECT_COLOR:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
gdk_colormap_add (colormap);
|
|
|
|
return colormap;
|
|
}
|
|
|
|
#define MIN_SYNC_TIME 2
|
|
|
|
static void
|
|
gdk_colormap_sync (GdkColormap *colormap,
|
|
gboolean force)
|
|
{
|
|
time_t current_time;
|
|
GdkColormapPrivateWin32 *private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
XColor *xpalette;
|
|
gint nlookup;
|
|
gint i;
|
|
|
|
g_return_if_fail (colormap != NULL);
|
|
|
|
current_time = time (NULL);
|
|
if (!force && ((current_time - private->last_sync_time) < MIN_SYNC_TIME))
|
|
return;
|
|
|
|
private->last_sync_time = current_time;
|
|
|
|
nlookup = 0;
|
|
xpalette = g_new (XColor, colormap->size);
|
|
|
|
nlookup = GetPaletteEntries (private->xcolormap->palette,
|
|
0, colormap->size, xpalette);
|
|
|
|
for (i = 0; i < nlookup; i++)
|
|
{
|
|
colormap->colors[i].pixel = i;
|
|
colormap->colors[i].red = (xpalette[i].peRed * 65535) / 255;
|
|
colormap->colors[i].green = (xpalette[i].peGreen * 65535) / 255;
|
|
colormap->colors[i].blue = (xpalette[i].peBlue * 65535) / 255;
|
|
}
|
|
|
|
for ( ; i < colormap->size; i++)
|
|
{
|
|
colormap->colors[i].pixel = i;
|
|
colormap->colors[i].red = 0;
|
|
colormap->colors[i].green = 0;
|
|
colormap->colors[i].blue = 0;
|
|
}
|
|
|
|
g_free (xpalette);
|
|
}
|
|
|
|
GdkColormap*
|
|
gdk_colormap_get_system (void)
|
|
{
|
|
static GdkColormap *colormap = NULL;
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
if (!colormap)
|
|
{
|
|
colormap = g_object_new (gdk_colormap_get_type (), NULL);
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
private->xcolormap = default_colormap ();
|
|
colormap->visual = gdk_visual_get_system ();
|
|
private->private_val = FALSE;
|
|
|
|
private->hash = NULL;
|
|
private->last_sync_time = 0;
|
|
private->info = NULL;
|
|
|
|
colormap->colors = NULL;
|
|
colormap->size = colormap->visual->colormap_size;
|
|
|
|
if ((colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
|
|
(colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
|
|
{
|
|
private->info = g_new0 (GdkColorInfo, colormap->size);
|
|
colormap->colors = g_new (GdkColor, colormap->size);
|
|
|
|
private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
|
|
(GEqualFunc) gdk_color_equal);
|
|
|
|
gdk_colormap_sync (colormap, TRUE);
|
|
}
|
|
gdk_colormap_add (colormap);
|
|
}
|
|
|
|
return colormap;
|
|
}
|
|
|
|
gint
|
|
gdk_colormap_get_system_size (void)
|
|
{
|
|
gint bitspixel;
|
|
|
|
bitspixel = GetDeviceCaps (gdk_display_hdc, BITSPIXEL);
|
|
|
|
if (bitspixel == 1)
|
|
return 2;
|
|
else if (bitspixel == 4)
|
|
return 16;
|
|
else if (bitspixel == 8)
|
|
return 256;
|
|
else if (bitspixel == 12)
|
|
return 32;
|
|
else if (bitspixel == 16)
|
|
return 64;
|
|
else /* if (bitspixel >= 24) */
|
|
return 256;
|
|
}
|
|
|
|
void
|
|
gdk_colormap_change (GdkColormap *colormap,
|
|
gint ncolors)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
XColor *palette;
|
|
int i;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
|
|
palette = g_new (XColor, ncolors);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
switch (colormap->visual->type)
|
|
{
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
for (i = 0; i < ncolors; i++)
|
|
{
|
|
palette[i].peRed = (colormap->colors[i].red >> 8);
|
|
palette[i].peGreen = (colormap->colors[i].green >> 8);
|
|
palette[i].peBlue = (colormap->colors[i].blue >> 8);
|
|
palette[i].peFlags = 0;
|
|
}
|
|
|
|
if (SetPaletteEntries (private->xcolormap->palette,
|
|
0, ncolors, palette) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
private->xcolormap->stale = TRUE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_free (palette);
|
|
}
|
|
|
|
gboolean
|
|
gdk_colors_alloc (GdkColormap *colormap,
|
|
gboolean contiguous,
|
|
gulong *planes,
|
|
gint nplanes,
|
|
gulong *pixels,
|
|
gint npixels)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gint return_val;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (colormap), 0);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
return_val = alloc_color_cells (private->xcolormap, contiguous,
|
|
planes, nplanes, pixels, npixels);
|
|
|
|
if (return_val)
|
|
{
|
|
for (i=0; i<npixels; i++)
|
|
{
|
|
private->info[pixels[i]].ref_count++;
|
|
private->info[pixels[i]].flags |= GDK_COLOR_WRITEABLE;
|
|
}
|
|
}
|
|
|
|
return return_val != 0;
|
|
}
|
|
|
|
/* This is almost identical to gdk_colormap_free_colors.
|
|
* Keep them in sync!
|
|
*/
|
|
void
|
|
gdk_colors_free (GdkColormap *colormap,
|
|
gulong *in_pixels,
|
|
gint in_npixels,
|
|
gulong planes)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gulong *pixels;
|
|
gint npixels = 0;
|
|
gint i;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
g_return_if_fail (in_pixels != NULL);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
if ((colormap->visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
|
|
(colormap->visual->type != GDK_VISUAL_GRAYSCALE))
|
|
return;
|
|
|
|
pixels = g_new (gulong, in_npixels);
|
|
|
|
for (i=0; i<in_npixels; i++)
|
|
{
|
|
gulong pixel = in_pixels[i];
|
|
|
|
if (private->info[pixel].ref_count)
|
|
{
|
|
private->info[pixel].ref_count--;
|
|
|
|
if (private->info[pixel].ref_count == 0)
|
|
{
|
|
pixels[npixels++] = pixel;
|
|
if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
|
|
g_hash_table_remove (private->hash, &colormap->colors[pixel]);
|
|
private->info[pixel].flags = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (npixels)
|
|
free_colors (private->xcolormap, pixels, npixels, planes);
|
|
|
|
g_free (pixels);
|
|
}
|
|
|
|
/* This is almost identical to gdk_colors_free.
|
|
* Keep them in sync!
|
|
*/
|
|
void
|
|
gdk_colormap_free_colors (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gulong *pixels;
|
|
gint npixels = 0;
|
|
gint i;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
g_return_if_fail (colors != NULL);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
if ((colormap->visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
|
|
(colormap->visual->type != GDK_VISUAL_GRAYSCALE))
|
|
return;
|
|
|
|
pixels = g_new (gulong, ncolors);
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
gulong pixel = colors[i].pixel;
|
|
|
|
if (private->info[pixel].ref_count)
|
|
{
|
|
private->info[pixel].ref_count--;
|
|
|
|
if (private->info[pixel].ref_count == 0)
|
|
{
|
|
pixels[npixels++] = pixel;
|
|
if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
|
|
g_hash_table_remove (private->hash, &colormap->colors[pixel]);
|
|
private->info[pixel].flags = 0;
|
|
}
|
|
}
|
|
}
|
|
if (npixels)
|
|
free_colors (private->xcolormap, pixels, npixels, 0);
|
|
g_free (pixels);
|
|
}
|
|
|
|
/********************
|
|
* Color allocation *
|
|
********************/
|
|
|
|
/* Try to allocate a single color using alloc_color. If it succeeds,
|
|
* cache the result in our colormap, and store in ret.
|
|
*/
|
|
static gboolean
|
|
gdk_colormap_alloc1 (GdkColormap *colormap,
|
|
GdkColor *color,
|
|
GdkColor *ret)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
XColor xcolor;
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
xcolor.peRed = color->red >> 8;
|
|
xcolor.peGreen = color->green >> 8;
|
|
xcolor.peBlue = color->blue >> 8;
|
|
|
|
if (alloc_color (private->xcolormap, &xcolor, &ret->pixel))
|
|
{
|
|
ret->red = (xcolor.peRed * 65535) / 255;
|
|
ret->green = (xcolor.peGreen * 65535) / 255;
|
|
ret->blue = (xcolor.peBlue * 65535) / 255;
|
|
|
|
if ((guint) ret->pixel < colormap->size)
|
|
{
|
|
if (private->info[ret->pixel].ref_count) /* got a duplicate */
|
|
{
|
|
/* XXX */
|
|
}
|
|
else
|
|
{
|
|
colormap->colors[ret->pixel] = *color;
|
|
private->info[ret->pixel].ref_count = 1;
|
|
|
|
g_hash_table_insert (private->hash,
|
|
&colormap->colors[ret->pixel],
|
|
&colormap->colors[ret->pixel]);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_alloc_colors_writeable (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gulong *pixels;
|
|
gboolean status;
|
|
gint i, index;
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
if (private->private_val)
|
|
{
|
|
index = 0;
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
while ((index < colormap->size) && (private->info[index].ref_count != 0))
|
|
index++;
|
|
|
|
if (index < colormap->size)
|
|
{
|
|
colors[i].pixel = index;
|
|
success[i] = TRUE;
|
|
private->info[index].ref_count++;
|
|
private->info[i].flags |= GDK_COLOR_WRITEABLE;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
return i;
|
|
}
|
|
else
|
|
{
|
|
pixels = g_new (gulong, ncolors);
|
|
/* Allocation of a writeable color cells */
|
|
|
|
status = alloc_color_cells (private->xcolormap, FALSE, NULL,
|
|
0, pixels, ncolors);
|
|
if (status)
|
|
{
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
colors[i].pixel = pixels[i];
|
|
private->info[pixels[i]].ref_count++;
|
|
private->info[pixels[i]].flags |= GDK_COLOR_WRITEABLE;
|
|
}
|
|
}
|
|
|
|
g_free (pixels);
|
|
|
|
return status ? ncolors : 0;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_alloc_colors_private (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gint i, index;
|
|
XColor *store = g_new (XColor, ncolors);
|
|
gint nstore = 0;
|
|
gint nremaining = 0;
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
index = -1;
|
|
|
|
/* First, store the colors we have room for */
|
|
|
|
index = 0;
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
if (!success[i])
|
|
{
|
|
while ((index < colormap->size) && (private->info[index].ref_count != 0))
|
|
index++;
|
|
|
|
if (index < colormap->size)
|
|
{
|
|
store[nstore].peRed = colors[i].red >> 8;
|
|
store[nstore].peBlue = colors[i].blue >> 8;
|
|
store[nstore].peGreen = colors[i].green >> 8;
|
|
nstore++;
|
|
|
|
success[i] = TRUE;
|
|
|
|
colors[i].pixel = index;
|
|
private->info[index].ref_count++;
|
|
}
|
|
else
|
|
nremaining++;
|
|
}
|
|
}
|
|
|
|
if (SetPaletteEntries (private->xcolormap->palette,
|
|
0, nstore, store) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
private->xcolormap->stale = TRUE;
|
|
|
|
g_free (store);
|
|
|
|
if (nremaining > 0 && best_match)
|
|
{
|
|
/* Get best matches for remaining colors */
|
|
|
|
gchar *available = g_new (gchar, colormap->size);
|
|
for (i = 0; i < colormap->size; i++)
|
|
available[i] = TRUE;
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
if (!success[i])
|
|
{
|
|
index = gdk_colormap_match_color (colormap,
|
|
&colors[i],
|
|
available);
|
|
if (index != -1)
|
|
{
|
|
colors[i] = colormap->colors[index];
|
|
private->info[index].ref_count++;
|
|
|
|
success[i] = TRUE;
|
|
nremaining--;
|
|
}
|
|
}
|
|
}
|
|
g_free (available);
|
|
}
|
|
|
|
return (ncolors - nremaining);
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_alloc_colors_shared (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
gint i, index;
|
|
gint nremaining = 0;
|
|
gint nfailed = 0;
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
index = -1;
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
if (!success[i])
|
|
{
|
|
if (gdk_colormap_alloc1 (colormap, &colors[i], &colors[i]))
|
|
success[i] = TRUE;
|
|
else
|
|
nremaining++;
|
|
}
|
|
}
|
|
|
|
|
|
if (nremaining > 0 && best_match)
|
|
{
|
|
gchar *available = g_new (gchar, colormap->size);
|
|
for (i = 0; i < colormap->size; i++)
|
|
available[i] = ((private->info[i].ref_count == 0) ||
|
|
!(private->info[i].flags & GDK_COLOR_WRITEABLE));
|
|
gdk_colormap_sync (colormap, FALSE);
|
|
|
|
while (nremaining > 0)
|
|
{
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
if (!success[i])
|
|
{
|
|
index = gdk_colormap_match_color (colormap, &colors[i], available);
|
|
if (index != -1)
|
|
{
|
|
if (private->info[index].ref_count)
|
|
{
|
|
private->info[index].ref_count++;
|
|
colors[i] = colormap->colors[index];
|
|
success[i] = TRUE;
|
|
nremaining--;
|
|
}
|
|
else
|
|
{
|
|
if (gdk_colormap_alloc1 (colormap,
|
|
&colormap->colors[index],
|
|
&colors[i]))
|
|
{
|
|
success[i] = TRUE;
|
|
nremaining--;
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
available[index] = FALSE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
nfailed++;
|
|
nremaining--;
|
|
success[i] = 2; /* flag as permanent failure */
|
|
}
|
|
}
|
|
}
|
|
}
|
|
g_free (available);
|
|
}
|
|
|
|
/* Change back the values we flagged as permanent failures */
|
|
if (nfailed > 0)
|
|
{
|
|
for (i=0; i<ncolors; i++)
|
|
if (success[i] == 2)
|
|
success[i] = FALSE;
|
|
nremaining = nfailed;
|
|
}
|
|
|
|
return (ncolors - nremaining);
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_alloc_colors_pseudocolor (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
GdkColor *lookup_color;
|
|
gint i;
|
|
gint nremaining = 0;
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
/* Check for an exact match among previously allocated colors */
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
if (!success[i])
|
|
{
|
|
lookup_color = g_hash_table_lookup (private->hash, &colors[i]);
|
|
if (lookup_color)
|
|
{
|
|
private->info[lookup_color->pixel].ref_count++;
|
|
colors[i].pixel = lookup_color->pixel;
|
|
success[i] = TRUE;
|
|
}
|
|
else
|
|
nremaining++;
|
|
}
|
|
}
|
|
|
|
/* If that failed, we try to allocate a new color, or approxmiate
|
|
* with what we can get if best_match is TRUE.
|
|
*/
|
|
if (nremaining > 0)
|
|
{
|
|
if (private->private_val)
|
|
return gdk_colormap_alloc_colors_private (colormap, colors, ncolors, writeable, best_match, success);
|
|
else
|
|
return gdk_colormap_alloc_colors_shared (colormap, colors, ncolors, writeable, best_match, success);
|
|
}
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
gint
|
|
gdk_colormap_alloc_colors (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
GdkVisual *visual;
|
|
gint i;
|
|
gint nremaining = 0;
|
|
XColor xcolor;
|
|
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (colormap), FALSE);
|
|
g_return_val_if_fail (colors != NULL, FALSE);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
success[i] = FALSE;
|
|
}
|
|
|
|
switch (colormap->visual->type)
|
|
{
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
if (writeable)
|
|
return gdk_colormap_alloc_colors_writeable (colormap, colors, ncolors,
|
|
writeable, best_match, success);
|
|
else
|
|
return gdk_colormap_alloc_colors_pseudocolor (colormap, colors, ncolors,
|
|
writeable, best_match, success);
|
|
break;
|
|
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
visual = colormap->visual;
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
colors[i].pixel = (((colors[i].red >> (16 - visual->red_prec)) << visual->red_shift) +
|
|
((colors[i].green >> (16 - visual->green_prec)) << visual->green_shift) +
|
|
((colors[i].blue >> (16 - visual->blue_prec)) << visual->blue_shift));
|
|
success[i] = TRUE;
|
|
}
|
|
break;
|
|
|
|
case GDK_VISUAL_STATIC_GRAY:
|
|
case GDK_VISUAL_STATIC_COLOR:
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
xcolor.peRed = colors[i].red >> 8;
|
|
xcolor.peGreen = colors[i].green >> 8;
|
|
xcolor.peBlue = colors[i].blue >> 8;
|
|
if (alloc_color (private->xcolormap, &xcolor, &colors[i].pixel))
|
|
success[i] = TRUE;
|
|
else
|
|
nremaining++;
|
|
}
|
|
break;
|
|
|
|
case GDK_VISUAL_DIRECT_COLOR:
|
|
g_assert_not_reached ();
|
|
}
|
|
return nremaining;
|
|
}
|
|
|
|
void
|
|
gdk_colormap_query_color (GdkColormap *colormap,
|
|
gulong pixel,
|
|
GdkColor *result)
|
|
{
|
|
GdkVisual *visual;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
|
|
visual = gdk_colormap_get_visual (colormap);
|
|
|
|
switch (visual->type) {
|
|
case GDK_VISUAL_DIRECT_COLOR:
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
result->red = 65535. * (double)((pixel & visual->red_mask) >> visual->red_shift) / ((1 << visual->red_prec) - 1);
|
|
result->green = 65535. * (double)((pixel & visual->green_mask) >> visual->green_shift) / ((1 << visual->green_prec) - 1);
|
|
result->blue = 65535. * (double)((pixel & visual->blue_mask) >> visual->blue_shift) / ((1 << visual->blue_prec) - 1);
|
|
break;
|
|
case GDK_VISUAL_STATIC_GRAY:
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
result->red = result->green = result->blue = 65535. * (double)pixel/((1<<visual->depth) - 1);
|
|
break;
|
|
case GDK_VISUAL_STATIC_COLOR:
|
|
g_assert_not_reached ();
|
|
break;
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
result->red = colormap->colors[pixel].red;
|
|
result->green = colormap->colors[pixel].green;
|
|
result->blue = colormap->colors[pixel].blue;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gdk_color_change (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
XColor xcolor;
|
|
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (colormap), FALSE);
|
|
g_return_val_if_fail (color != NULL, FALSE);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (colormap);
|
|
|
|
xcolor.peRed = color->red >> 8;
|
|
xcolor.peGreen = color->green >> 8;
|
|
xcolor.peBlue = color->blue >> 8;
|
|
|
|
if (SetPaletteEntries (private->xcolormap->palette,
|
|
color->pixel, 1, &xcolor) == 0)
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
private->xcolormap->stale = TRUE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_match_color (GdkColormap *cmap,
|
|
GdkColor *color,
|
|
const gchar *available)
|
|
{
|
|
GdkColor *colors;
|
|
guint sum, max;
|
|
gint rdiff, gdiff, bdiff;
|
|
gint i, index;
|
|
|
|
g_return_val_if_fail (cmap != NULL, 0);
|
|
g_return_val_if_fail (color != NULL, 0);
|
|
|
|
colors = cmap->colors;
|
|
max = 3 * (65536);
|
|
index = -1;
|
|
|
|
for (i = 0; i < cmap->size; i++)
|
|
{
|
|
if ((!available) || (available && available[i]))
|
|
{
|
|
rdiff = (color->red - colors[i].red);
|
|
gdiff = (color->green - colors[i].green);
|
|
bdiff = (color->blue - colors[i].blue);
|
|
|
|
sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
|
|
|
|
if (sum < max)
|
|
{
|
|
index = i;
|
|
max = sum;
|
|
}
|
|
}
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
GdkColormap*
|
|
gdk_colormap_lookup (Colormap xcolormap)
|
|
{
|
|
GdkColormap *cmap;
|
|
|
|
if (!colormap_hash)
|
|
return NULL;
|
|
|
|
cmap = g_hash_table_lookup (colormap_hash, &xcolormap);
|
|
return cmap;
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_add (GdkColormap *cmap)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GEqualFunc) gdk_colormap_equal);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (cmap);
|
|
|
|
g_hash_table_insert (colormap_hash, &private->xcolormap, cmap);
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_remove (GdkColormap *cmap)
|
|
{
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GEqualFunc) gdk_colormap_equal);
|
|
|
|
private = GDK_COLORMAP_PRIVATE_DATA (cmap);
|
|
|
|
g_hash_table_remove (colormap_hash, &private->xcolormap);
|
|
}
|
|
|
|
static guint
|
|
gdk_colormap_hash (Colormap *cmap)
|
|
{
|
|
return (guint) *cmap;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_colormap_equal (Colormap *a,
|
|
Colormap *b)
|
|
{
|
|
return (*a == *b);
|
|
}
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
|
|
gchar *
|
|
gdk_win32_color_to_string (const GdkColor *color)
|
|
{
|
|
static char buf[100];
|
|
|
|
sprintf (buf, "(%.04x,%.04x,%.04x):%.06x",
|
|
color->red, color->green, color->blue, color->pixel);
|
|
|
|
return buf;
|
|
}
|
|
|
|
#endif
|