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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
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "gdkcolor.h"
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#include "gdkinternals.h"
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#include "gdkprivate-win32.h"
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static void free_colormap (Colormap colormap);
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static gint gdk_colormap_match_color (GdkColormap *cmap,
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GdkColor *color,
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const gchar *available);
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static void gdk_colormap_add (GdkColormap *cmap);
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static void gdk_colormap_remove (GdkColormap *cmap);
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static guint gdk_colormap_hash (Colormap *cmap);
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static gboolean gdk_colormap_equal (Colormap *a,
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Colormap *b);
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static void gdk_colormap_init (GdkColormap *colormap);
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static void gdk_colormap_class_init (GdkColormapClass *klass);
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static void gdk_colormap_finalize (GObject *object);
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static gpointer parent_class = NULL;
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static GHashTable *colormap_hash = NULL;
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GType
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gdk_colormap_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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{
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static const GTypeInfo object_info =
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{
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sizeof (GdkColormapClass),
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(GBaseInitFunc) NULL,
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_colormap_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GdkColormap),
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0, /* n_preallocs */
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(GInstanceInitFunc) gdk_colormap_init,
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};
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object_type = g_type_register_static (G_TYPE_OBJECT,
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"GdkColormap",
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&object_info, 0);
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}
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return object_type;
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}
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static void
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gdk_colormap_init (GdkColormap *colormap)
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{
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GdkColormapPrivateWin32 *private;
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private = g_new (GdkColormapPrivateWin32, 1);
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colormap->windowing_data = private;
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private->hash = NULL;
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private->last_sync_time = 0;
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private->info = NULL;
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colormap->size = 0;
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colormap->colors = NULL;
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}
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static void
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gdk_colormap_class_init (GdkColormapClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_colormap_finalize;
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}
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static void
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gdk_colormap_finalize (GObject *object)
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{
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GdkColormap *colormap = GDK_COLORMAP (object);
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GdkColormapPrivateWin32 *private = GDK_COLORMAP_PRIVATE_DATA (colormap);
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gdk_colormap_remove (colormap);
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free_colormap (private->xcolormap);
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if (private->hash)
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g_hash_table_destroy (private->hash);
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g_free (private->info);
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g_free (colormap->colors);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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alloc_color_cells(Colormap colormap,
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gboolean contig,
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unsigned long plane_masks_return[],
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unsigned int nplanes,
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unsigned long pixels_return[],
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unsigned int npixels)
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{
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unsigned int i, nfree, iret;
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nfree = 0;
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for (i = 0; i < colormap->size && nfree < npixels; i++)
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if (!colormap->in_use[i])
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nfree++;
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if (colormap->size + npixels - nfree > colormap->sizepalette)
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{
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g_warning ("alloc_color_cells: too large palette: %d",
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colormap->size + npixels);
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return FALSE;
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}
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iret = 0;
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for (i = 0; i < colormap->size && iret < npixels; i++)
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if (!colormap->in_use[i])
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{
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colormap->in_use[i] = TRUE;
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pixels_return[iret] = i;
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iret++;
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}
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if (nfree < npixels)
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{
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int nmore = npixels - nfree;
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/* I don't understand why, if the code below in #if 0 is
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enabled, gdkrgb fails miserably. The palette doesn't get
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realized correctly. There doesn't seem to be any harm done by
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keeping this code out, either. */
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#ifdef SOME_STRANGE_BUG
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if (!ResizePalette (colormap->palette, colormap->size + nmore))
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{
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WIN32_GDI_FAILED ("ResizePalette")
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return FALSE;
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}
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g_print("alloc_color_cells: %#x to %d\n",
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colormap->palette, colormap->size + nmore);
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#endif
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for (i = colormap->size; i < colormap->size + nmore; i++)
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{
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pixels_return[iret] = i;
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iret++;
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colormap->in_use[i] = TRUE;
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}
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#ifdef SOME_STRANGE_BUG
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colormap->size += nmore;
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#endif
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}
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return TRUE;
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}
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/* The following functions are from Tk8.0, but heavily modified.
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Here are tk's licensing terms. I hope these terms don't conflict
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with the GNU Lesser General Public License? They shouldn't, as
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they are looser that the GLPL, yes? */
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/*
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This software is copyrighted by the Regents of the University of
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California, Sun Microsystems, Inc., and other parties. The following
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terms apply to all files associated with the software unless explicitly
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disclaimed in individual files.
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The authors hereby grant permission to use, copy, modify, distribute,
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and license this software and its documentation for any purpose, provided
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that existing copyright notices are retained in all copies and that this
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notice is included verbatim in any distributions. No written agreement,
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license, or royalty fee is required for any of the authorized uses.
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Modifications to this software may be copyrighted by their authors
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and need not follow the licensing terms described here, provided that
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the new terms are clearly indicated on the first page of each file where
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they apply.
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IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
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FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
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DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
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IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
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NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
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MODIFICATIONS.
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GOVERNMENT USE: If you are acquiring this software on behalf of the
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U.S. government, the Government shall have only "Restricted Rights"
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in the software and related documentation as defined in the Federal
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Acquisition Regulations (FARs) in Clause 52.227.19 (c) (2). If you
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are acquiring the software on behalf of the Department of Defense, the
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software shall be classified as "Commercial Computer Software" and the
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Government shall have only "Restricted Rights" as defined in Clause
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252.227-7013 (c) (1) of DFARs. Notwithstanding the foregoing, the
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authors grant the U.S. Government and others acting in its behalf
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permission to use and distribute the software in accordance with the
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terms specified in this license.
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*/
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/*
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*----------------------------------------------------------------------
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*
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* XAllocColor --
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*
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* Find the closest available color to the specified XColor.
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*
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* Results:
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* Updates the color argument and returns 1 on success. Otherwise
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* returns 0.
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*
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* Side effects:
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* Allocates a new color in the palette.
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*
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*----------------------------------------------------------------------
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*/
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static int
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alloc_color(Colormap colormap,
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XColor *color,
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guint *pixelp)
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{
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PALETTEENTRY entry, closeEntry;
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unsigned int i;
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entry = *color;
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entry.peFlags = 0;
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if (colormap->rc_palette)
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{
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COLORREF newPixel, closePixel;
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UINT index;
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/*
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* Find the nearest existing palette entry.
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*/
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newPixel = RGB (entry.peRed, entry.peGreen, entry.peBlue);
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index = GetNearestPaletteIndex (colormap->palette, newPixel);
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GetPaletteEntries (colormap->palette, index, 1, &closeEntry);
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closePixel = RGB (closeEntry.peRed, closeEntry.peGreen,
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closeEntry.peBlue);
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if (newPixel != closePixel)
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{
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/* Not a perfect match. */
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if (!colormap->in_use[index])
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{
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/* It was a free'd entry anyway, so we can use it, and
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set it to the correct color. */
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if (SetPaletteEntries (colormap->palette, index, 1, &entry) == 0)
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WIN32_GDI_FAILED ("SetPaletteEntries");
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}
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else
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{
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/* The close entry found is in use, so search for a
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unused slot. */
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for (i = 0; i < colormap->size; i++)
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if (!colormap->in_use[i])
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{
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/* A free slot, use it. */
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if (SetPaletteEntries (colormap->palette,
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index, 1, &entry) == 0)
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WIN32_GDI_FAILED ("SetPaletteEntries");
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index = i;
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break;
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}
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if (i == colormap->size)
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{
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/* No free slots found. If the palette isn't maximal
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yet, grow it. */
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if (colormap->size == colormap->sizepalette)
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{
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/* The palette is maximal, and no free slots available,
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so use the close entry, then, dammit. */
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*color = closeEntry;
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}
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else
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{
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/* There is room to grow the palette. */
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index = colormap->size;
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colormap->size++;
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if (!ResizePalette (colormap->palette, colormap->size))
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WIN32_GDI_FAILED ("ResizePalette");
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if (SetPaletteEntries (colormap->palette, index, 1, &entry) == 0)
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WIN32_GDI_FAILED ("SetPaletteEntries");
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}
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}
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}
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colormap->stale = TRUE;
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}
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else
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{
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/* We got a match, so use it. */
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}
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*pixelp = index;
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colormap->in_use[index] = TRUE;
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#if 0
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g_print("alloc_color from %#x: index %d for %02x %02x %02x\n",
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colormap->palette, index,
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entry.peRed, entry.peGreen, entry.peBlue);
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#endif
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}
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else
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{
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/*
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* Determine what color will actually be used on non-colormap systems.
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*/
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*pixelp = GetNearestColor (gdk_display_hdc, RGB(entry.peRed, entry.peGreen, entry.peBlue));
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color->peRed = GetRValue (*pixelp);
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color->peGreen = GetGValue (*pixelp);
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color->peBlue = GetBValue (*pixelp);
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}
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return 1;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XFreeColors --
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*
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* Deallocate a block of colors.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Removes entries for the current palette and compacts the
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* remaining set.
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*
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*----------------------------------------------------------------------
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*/
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static void
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free_colors (Colormap colormap,
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gulong *pixels,
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gint npixels,
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gulong planes)
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{
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gint i;
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PALETTEENTRY entries[256];
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/*
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* We don't have to do anything for non-palette devices.
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*/
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if (colormap->rc_palette)
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{
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int npal;
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int lowestpixel = 256;
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int highestpixel = -1;
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npal = GetPaletteEntries (colormap->palette, 0, 256, entries);
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for (i = 0; i < npixels; i++)
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{
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int pixel = pixels[i];
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if (pixel < lowestpixel)
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lowestpixel = pixel;
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if (pixel > highestpixel)
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highestpixel = pixel;
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colormap->in_use[pixel] = FALSE;
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entries[pixel] = entries[0];
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}
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#if 0
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if (SetPaletteEntries (colormap->palette, lowestpixel,
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highestpixel - lowestpixel + 1,
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entries + lowestpixel) == 0)
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WIN32_GDI_FAILED ("SetPaletteEntries");
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#endif
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colormap->stale = TRUE;
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#if 0
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g_print("free_colors %#x lowestpixel = %d, highestpixel = %d\n",
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colormap->palette, lowestpixel, highestpixel);
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#endif
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* XCreateColormap --
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*
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* Allocate a new colormap.
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*
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* Results:
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* Returns a newly allocated colormap.
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*
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* Side effects:
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* Allocates an empty palette and color list.
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*
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*----------------------------------------------------------------------
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*/
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static Colormap
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create_colormap (HWND w,
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Visual *visual,
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gboolean alloc)
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{
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char logPalBuf[sizeof(LOGPALETTE) + 256 * sizeof(PALETTEENTRY)];
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LOGPALETTE *logPalettePtr;
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Colormap colormap;
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guint i;
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HPALETTE sysPal;
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HDC hdc;
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/* Should the alloc parameter do something? */
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/* Allocate a starting palette with all of the reserved colors. */
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logPalettePtr = (LOGPALETTE *) logPalBuf;
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logPalettePtr->palVersion = 0x300;
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sysPal = (HPALETTE) GetStockObject (DEFAULT_PALETTE);
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logPalettePtr->palNumEntries =
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GetPaletteEntries (sysPal, 0, 256, logPalettePtr->palPalEntry);
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colormap = (Colormap) g_new (ColormapStruct, 1);
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colormap->size = logPalettePtr->palNumEntries;
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colormap->stale = TRUE;
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colormap->palette = CreatePalette (logPalettePtr);
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hdc = GetDC (NULL);
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colormap->rc_palette = ((GetDeviceCaps (hdc, RASTERCAPS) & RC_PALETTE) != 0);
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if (colormap->rc_palette)
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{
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colormap->sizepalette = GetDeviceCaps (hdc, SIZEPALETTE);
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colormap->in_use = g_new (gboolean, colormap->sizepalette);
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/* Mark static colors in use. */
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for (i = 0; i < logPalettePtr->palNumEntries; i++)
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colormap->in_use[i] = TRUE;
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/* Mark rest not in use */
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for (i = logPalettePtr->palNumEntries; i < colormap->sizepalette; i++)
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colormap->in_use[i] = FALSE;
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}
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if (!ReleaseDC (NULL, hdc))
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WIN32_GDI_FAILED ("ReleaseDC");
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return colormap;
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}
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|
|
|
/*
|
|
*----------------------------------------------------------------------
|
|
*
|
|
* XFreeColormap --
|
|
*
|
|
* Frees the resources associated with the given colormap.
|
|
*
|
|
* Results:
|
|
* None.
|
|
*
|
|
* Side effects:
|
|
* Deletes the palette associated with the colormap. Note that
|
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* the palette must not be selected into a device context when
|
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* this occurs.
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*
|
|
*----------------------------------------------------------------------
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|
*/
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|
|
static void
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free_colormap(Colormap colormap)
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|
|
{
|
|
if (!DeleteObject (colormap->palette))
|
|
{
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g_error ("Unable to free colormap, palette is still selected.");
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}
|
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g_free (colormap);
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|
}
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|
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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
|