This is intended mainly for GNU/Linux distros who will remove GTK2 support in the near future.
1312 lines
33 KiB
C
1312 lines
33 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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* Copyright (C) 1998-2002 Tor Lillqvist
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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 "config.h"
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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 "gdkcolor.h"
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#include "gdkscreen.h"
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#include "gdkinternals.h"
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#include "gdkprivate-win32.h"
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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_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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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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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->hpal = NULL;
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private->current_size = 0;
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private->use = NULL;
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private->hash = NULL;
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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_WIN32_COLORMAP_DATA (colormap);
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GDI_CALL (DeleteObject, (private->hpal));
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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_free (private);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/* Mimics XAllocColorCells. Allocate read/write color cells. */
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static gboolean
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alloc_color_cells (GdkColormap *cmap,
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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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GdkColormapPrivateWin32 *cmapp = GDK_WIN32_COLORMAP_DATA (cmap);
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gint i, nfree, iret, start = 0;
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GDK_NOTE (COLORMAP, g_print ("alloc_color_cells: cmap=%p contig=%s npl=%d npix=%d",
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cmapp, contig ? "TRUE" : "FALSE",
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nplanes, npixels));
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switch (cmap->visual->type)
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{
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case GDK_VISUAL_GRAYSCALE:
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case GDK_VISUAL_PSEUDO_COLOR:
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nfree = 0;
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for (i = 0; i < cmap->size && nfree < npixels; i++)
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if (cmapp->use[i] == GDK_WIN32_PE_AVAILABLE &&
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(!contig ||
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(nfree == 0 || cmapp->use[i-1] == GDK_WIN32_PE_AVAILABLE)))
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{
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if (nfree == 0)
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start = i;
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nfree++;
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}
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else if (contig)
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nfree = 0;
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if (npixels > nfree)
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{
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GDK_NOTE (COLORMAP, g_print ("... nope (%d > %d)\n",
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npixels, nfree));
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return FALSE;
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}
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else
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GDK_NOTE (COLORMAP, g_print ("... ok\n"));
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iret = 0;
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for (i = start; i < cmap->size && iret < npixels; i++)
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if (cmapp->use[i] == GDK_WIN32_PE_AVAILABLE)
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{
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cmapp->use[i] = GDK_WIN32_PE_INUSE;
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pixels_return[iret] = i;
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iret++;
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}
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g_assert (iret == npixels);
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break;
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default:
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g_assert_not_reached ();
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}
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return TRUE;
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}
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/* The following functions are originally from Tk8.0, but heavily
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modified. Here are tk's licensing terms. I hope these terms don't
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conflict with the GNU Lesser General Public License? They
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shouldn't, as 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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/* Mimics XAllocColor. Allocate a read-only colormap entry. */
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static int
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alloc_color (GdkColormap *cmap,
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PALETTEENTRY *color,
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guint *pixelp)
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{
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PALETTEENTRY entry, close_entry;
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COLORREF new_pixel;
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UINT index;
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GdkColormapPrivateWin32 *cmapp = GDK_WIN32_COLORMAP_DATA (cmap);
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gint i;
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entry = *color;
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entry.peFlags = 0;
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new_pixel = RGB (entry.peRed, entry.peGreen, entry.peBlue);
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switch (cmap->visual->type)
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{
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case GDK_VISUAL_PSEUDO_COLOR:
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/* Find the nearest existing palette entry. */
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index = GetNearestPaletteIndex (cmapp->hpal, new_pixel);
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GetPaletteEntries (cmapp->hpal, index, 1, &close_entry);
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GDK_NOTE (COLORMAP,
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g_print ("alloc_color: new_pixel=%06lx index=%d=%02x close=%06lx\n",
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new_pixel, index, index,
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RGB (close_entry.peRed, close_entry.peGreen, close_entry.peBlue)));
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if (new_pixel != RGB (close_entry.peRed, close_entry.peGreen,
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close_entry.peBlue))
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{
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/* Not a perfect match. */
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if (cmapp->use[index] == GDK_WIN32_PE_AVAILABLE)
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{
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/* It was a nonused entry anyway, so we can use it, and
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* set it to the correct color.
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*/
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GDK_NOTE (COLORMAP, g_print ("... was free\n"));
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GDI_CALL (SetPaletteEntries, (cmapp->hpal, index, 1, &entry));
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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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* available slot.
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*/
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gboolean done = FALSE;
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for (i = 0; i < cmap->size; i++)
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if (cmapp->use[i] == GDK_WIN32_PE_AVAILABLE)
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{
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/* An available slot, use it. */
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GDK_NOTE (COLORMAP,
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g_print ("... use free slot %d%s\n",
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i, (i >= cmapp->current_size) ?
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", will resize palette" : ""));
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if (i >= cmapp->current_size)
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{
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if (!ResizePalette (cmapp->hpal, i + 1))
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{
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WIN32_GDI_FAILED ("ResizePalette");
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break;
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}
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cmapp->current_size = i + 1;
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}
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if (!SetPaletteEntries (cmapp->hpal, i, 1, &entry))
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{
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WIN32_GDI_FAILED ("SetPaletteEntries");
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i = cmap->size;
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}
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else
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{
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done = TRUE;
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index = i;
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}
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break;
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}
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if (!done)
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{
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/* No free slots available, or failed to resize
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* palette or set palette entry.
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*/
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GDK_NOTE (COLORMAP, g_print ("... failure\n"));
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return FALSE;
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}
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}
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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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cmapp->use[index] = GDK_WIN32_PE_INUSE;
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GDK_NOTE (COLORMAP, g_print ("alloc_color: %p: "
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"index=%3d=%02x for %02x %02x %02x: "
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"%02x %02x %02x\n",
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cmapp->hpal, index, index,
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entry.peRed, entry.peGreen, entry.peBlue,
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color->peRed, color->peGreen, color->peBlue));
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return TRUE;
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case GDK_VISUAL_STATIC_COLOR:
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/* Find the nearest existing palette entry. */
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index = GetNearestPaletteIndex (cmapp->hpal, new_pixel);
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GetPaletteEntries (cmapp->hpal, index, 1, &close_entry);
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*color = close_entry;
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*pixelp = index;
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GDK_NOTE (COLORMAP, g_print ("alloc_color %p: "
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"index=%3d=%02x for %02x %02x %02x: "
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"%02x %02x %02x\n",
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cmapp->hpal, index, index,
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entry.peRed, entry.peGreen, entry.peBlue,
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color->peRed, color->peGreen, color->peBlue));
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return TRUE;
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case GDK_VISUAL_TRUE_COLOR:
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/* Determine what color will actually be used on non-colormap systems. */
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*pixelp = GetNearestColor (_gdk_display_hdc, new_pixel);
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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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return TRUE;
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default:
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g_assert_not_reached ();
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return FALSE;
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}
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}
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/* Mimics XFreeColors. */
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static void
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free_colors (GdkColormap *cmap,
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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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PALETTEENTRY pe;
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GdkColormapPrivateWin32 *cmapp = GDK_WIN32_COLORMAP_DATA (cmap);
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gint i;
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#ifdef G_ENABLE_DEBUG
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gint set_black_count = 0;
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#endif
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gboolean *cleared_entries;
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cleared_entries = g_new0 (gboolean, cmap->size);
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/* We don't have to do anything for non-palette devices. */
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switch (cmap->visual->type)
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{
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case GDK_VISUAL_GRAYSCALE:
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case GDK_VISUAL_PSEUDO_COLOR:
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for (i = 0; i < npixels; i++)
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{
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if (pixels[i] >= cmap->size)
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; /* Nothing */
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else if (cmapp->use[pixels[i]] == GDK_WIN32_PE_STATIC)
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; /* Nothing either*/
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else
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{
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cmapp->use[pixels[i]] = GDK_WIN32_PE_AVAILABLE;
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cleared_entries[pixels[i]] = TRUE;
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}
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}
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for (i = cmapp->current_size - 1; i >= 0; i--)
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if (cmapp->use[i] != GDK_WIN32_PE_AVAILABLE)
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break;
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if (i < cmapp->current_size - 1)
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{
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GDK_NOTE (COLORMAP, g_print ("free_colors: hpal=%p resize=%d\n",
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cmapp->hpal, i + 1));
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if (!ResizePalette (cmapp->hpal, i + 1))
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WIN32_GDI_FAILED ("ResizePalette");
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else
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cmapp->current_size = i + 1;
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}
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pe.peRed = pe.peGreen = pe.peBlue = pe.peFlags = 0;
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for (i = 0; i < cmapp->current_size; i++)
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{
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if (cleared_entries[i])
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{
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GDI_CALL (SetPaletteEntries, (cmapp->hpal, i, 1, &pe));
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GDK_NOTE (COLORMAP, set_black_count++);
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}
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}
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#if 0
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GDK_NOTE (COLORMAP, _gdk_win32_print_hpalette (cmapp->hpal));
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#else
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GDK_NOTE (COLORMAP, (set_black_count > 0 ?
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g_print ("free_colors: %d (%d) set to black\n",
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set_black_count, cmapp->current_size)
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: (void) 0));
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#endif
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g_free (cleared_entries);
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break;
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default:
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g_assert_not_reached ();
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}
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}
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|
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/* Mimics XCreateColormap. */
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static void
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create_colormap (GdkColormap *cmap,
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gboolean writeable)
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{
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struct {
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LOGPALETTE pal;
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PALETTEENTRY pe[256-1];
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} lp;
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HPALETTE hpal;
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GdkColormapPrivateWin32 *cmapp = GDK_WIN32_COLORMAP_DATA (cmap);
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gint i;
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/* Allocate a starting palette with all the static colors. */
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hpal = GetStockObject (DEFAULT_PALETTE);
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lp.pal.palVersion = 0x300;
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lp.pal.palNumEntries = GetPaletteEntries (hpal, 0, 256, lp.pal.palPalEntry);
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if (cmap->visual->type == GDK_VISUAL_STATIC_COLOR &&
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cmap->visual->depth == 4)
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{
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/* Use only 16 colors */
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for (i = 8; i < 16; i++)
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lp.pal.palPalEntry[i] = lp.pal.palPalEntry[i+4];
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lp.pal.palNumEntries = 16;
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}
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for (i = 0; i < lp.pal.palNumEntries; i++)
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lp.pal.palPalEntry[i].peFlags = 0;
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GDK_NOTE (COLORMAP, (g_print ("Default palette %p: %d entries\n",
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hpal, lp.pal.palNumEntries),
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_gdk_win32_print_paletteentries (lp.pal.palPalEntry,
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lp.pal.palNumEntries)));
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DeleteObject (hpal);
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/* For writeable colormaps, allow all 256 entries to be set. They won't
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* set all 256 system palette entries anyhow, of course, but we shouldn't
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* let the app see that, I think.
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*/
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if (writeable)
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cmapp->current_size = 0;
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else
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cmapp->current_size = lp.pal.palNumEntries;
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cmapp->private_val = writeable;
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if (!(cmapp->hpal = CreatePalette (&lp.pal)))
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WIN32_GDI_FAILED ("CreatePalette");
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else
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GDK_NOTE (COLORMAP, g_print ("Created palette %p\n", cmapp->hpal));
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switch (cmap->visual->type)
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{
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case GDK_VISUAL_PSEUDO_COLOR:
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cmapp->use = g_new (GdkWin32PalEntryState, cmap->size);
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|
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/* Mark static colors in use. */
|
|
for (i = 0; i < cmapp->current_size; i++)
|
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{
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cmapp->use[i] = GDK_WIN32_PE_STATIC;
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cmapp->info[i].ref_count = G_MAXUINT/2;
|
|
}
|
|
/* Mark rest not in use */
|
|
for (; i < cmap->size; i++)
|
|
cmapp->use[i] = GDK_WIN32_PE_AVAILABLE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
sync_colors (GdkColormap *colormap)
|
|
{
|
|
PALETTEENTRY *pe;
|
|
GdkColormapPrivateWin32 *private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
gint nlookup;
|
|
gint i;
|
|
|
|
pe = g_new (PALETTEENTRY, colormap->size);
|
|
nlookup = GetPaletteEntries (private->hpal, 0, colormap->size, pe);
|
|
|
|
GDK_NOTE (COLORMAP, (g_print ("sync_colors: %p hpal=%p: %d entries\n",
|
|
private, private->hpal, nlookup),
|
|
_gdk_win32_print_paletteentries (pe, nlookup)));
|
|
|
|
for (i = 0; i < nlookup; i++)
|
|
{
|
|
colormap->colors[i].pixel = i;
|
|
colormap->colors[i].red = (pe[i].peRed * 65535) / 255;
|
|
colormap->colors[i].green = (pe[i].peGreen * 65535) / 255;
|
|
colormap->colors[i].blue = (pe[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 (pe);
|
|
}
|
|
|
|
GdkColormap*
|
|
gdk_colormap_new (GdkVisual *visual,
|
|
gboolean private_cmap)
|
|
{
|
|
GdkColormap *colormap;
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
g_return_val_if_fail (visual != NULL, NULL);
|
|
|
|
colormap = g_object_new (gdk_colormap_get_type (), NULL);
|
|
private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
colormap->visual = visual;
|
|
|
|
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);
|
|
|
|
create_colormap (colormap, private_cmap);
|
|
|
|
if (private_cmap)
|
|
{
|
|
sync_colors (colormap);
|
|
#if 0 /* XXX is this needed or not? Seems redundant */
|
|
gdk_colormap_change (colormap, colormap->size);
|
|
#endif
|
|
}
|
|
break;
|
|
|
|
case GDK_VISUAL_STATIC_GRAY:
|
|
case GDK_VISUAL_STATIC_COLOR:
|
|
create_colormap (colormap, FALSE);
|
|
colormap->colors = g_new (GdkColor, colormap->size);
|
|
sync_colors (colormap);
|
|
break;
|
|
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
return colormap;
|
|
}
|
|
|
|
GdkColormap*
|
|
gdk_screen_get_system_colormap (GdkScreen *screen)
|
|
{
|
|
static GdkColormap *colormap = NULL;
|
|
GdkColormapPrivateWin32 *private;
|
|
|
|
g_return_val_if_fail (screen == _gdk_screen, NULL);
|
|
|
|
if (!colormap)
|
|
{
|
|
colormap = g_object_new (gdk_colormap_get_type (), NULL);
|
|
private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
colormap->visual = gdk_visual_get_system ();
|
|
|
|
colormap->size = colormap->visual->colormap_size;
|
|
|
|
private->private_val = FALSE;
|
|
|
|
switch (colormap->visual->type)
|
|
{
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
private->info = g_new0 (GdkColorInfo, colormap->size);
|
|
private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
|
|
(GEqualFunc) gdk_color_equal);
|
|
/* Fallthrough */
|
|
|
|
case GDK_VISUAL_STATIC_GRAY:
|
|
case GDK_VISUAL_STATIC_COLOR:
|
|
create_colormap (colormap, FALSE);
|
|
|
|
colormap->colors = g_new (GdkColor, colormap->size);
|
|
sync_colors (colormap);
|
|
break;
|
|
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
return colormap;
|
|
}
|
|
|
|
gint
|
|
gdk_colormap_get_system_size (void)
|
|
{
|
|
return gdk_colormap_get_system ()->size;
|
|
}
|
|
|
|
void
|
|
gdk_colormap_change (GdkColormap *colormap,
|
|
gint ncolors)
|
|
{
|
|
GdkColormapPrivateWin32 *cmapp;
|
|
PALETTEENTRY *pe;
|
|
int i;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
|
|
cmapp = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
GDK_NOTE (COLORMAP, g_print ("gdk_colormap_change: hpal=%p ncolors=%d\n",
|
|
cmapp->hpal, ncolors));
|
|
|
|
switch (colormap->visual->type)
|
|
{
|
|
case GDK_VISUAL_GRAYSCALE:
|
|
case GDK_VISUAL_PSEUDO_COLOR:
|
|
pe = g_new (PALETTEENTRY, ncolors);
|
|
|
|
for (i = 0; i < ncolors; i++)
|
|
{
|
|
pe[i].peRed = (colormap->colors[i].red >> 8);
|
|
pe[i].peGreen = (colormap->colors[i].green >> 8);
|
|
pe[i].peBlue = (colormap->colors[i].blue >> 8);
|
|
pe[i].peFlags = 0;
|
|
}
|
|
|
|
GDI_CALL (SetPaletteEntries, (cmapp->hpal, 0, ncolors, pe));
|
|
g_free (pe);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
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), FALSE);
|
|
|
|
private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
return_val = alloc_color_cells (colormap, 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;
|
|
}
|
|
|
|
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_WIN32_COLORMAP_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->use[pixel] == GDK_WIN32_PE_STATIC)
|
|
continue;
|
|
|
|
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 (colormap, pixels, npixels, planes);
|
|
|
|
g_free (pixels);
|
|
}
|
|
|
|
void
|
|
gdk_colormap_free_colors (GdkColormap *colormap,
|
|
const GdkColor *colors,
|
|
gint ncolors)
|
|
{
|
|
gulong *pixels;
|
|
gint i;
|
|
|
|
g_return_if_fail (GDK_IS_COLORMAP (colormap));
|
|
g_return_if_fail (colors != NULL);
|
|
|
|
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++)
|
|
pixels[i] = colors[i].pixel;
|
|
|
|
gdk_colors_free (colormap, pixels, ncolors, 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;
|
|
PALETTEENTRY pe;
|
|
|
|
private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
pe.peRed = color->red >> 8;
|
|
pe.peGreen = color->green >> 8;
|
|
pe.peBlue = color->blue >> 8;
|
|
|
|
if (alloc_color (colormap, &pe, &ret->pixel))
|
|
{
|
|
ret->red = (pe.peRed * 65535) / 255;
|
|
ret->green = (pe.peGreen * 65535) / 255;
|
|
ret->blue = (pe.peBlue * 65535) / 255;
|
|
|
|
if ((guint) ret->pixel < colormap->size)
|
|
{
|
|
if (private->info[ret->pixel].ref_count) /* got a duplicate */
|
|
{
|
|
}
|
|
else
|
|
{
|
|
colormap->colors[ret->pixel] = *color;
|
|
colormap->colors[ret->pixel].pixel = ret->pixel;
|
|
private->info[ret->pixel].ref_count = 1;
|
|
|
|
g_hash_table_insert (private->hash,
|
|
&colormap->colors[ret->pixel],
|
|
&colormap->colors[ret->pixel]);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
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_WIN32_COLORMAP_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 (colormap, 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 *cmapp;
|
|
gint i, index;
|
|
PALETTEENTRY pe;
|
|
gint nremaining = 0;
|
|
|
|
cmapp = GDK_WIN32_COLORMAP_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) &&
|
|
(cmapp->info[index].ref_count != 0))
|
|
index++;
|
|
|
|
if (index < colormap->size)
|
|
{
|
|
if (index >= cmapp->current_size)
|
|
{
|
|
if (!ResizePalette (cmapp->hpal, index + 1))
|
|
{
|
|
WIN32_GDI_FAILED ("ResizePalette");
|
|
nremaining++;
|
|
}
|
|
else
|
|
cmapp->current_size = index + 1;
|
|
}
|
|
if (index < cmapp->current_size)
|
|
{
|
|
pe.peRed = colors[i].red >> 8;
|
|
pe.peBlue = colors[i].blue >> 8;
|
|
pe.peGreen = colors[i].green >> 8;
|
|
pe.peFlags = 0;
|
|
|
|
if (!SetPaletteEntries (cmapp->hpal, index, 1, &pe))
|
|
{
|
|
WIN32_GDI_FAILED ("SetPaletteEntries");
|
|
nremaining++;
|
|
}
|
|
else
|
|
{
|
|
success[i] = TRUE;
|
|
|
|
colors[i].pixel = index;
|
|
colormap->colors[index] = colors[i];
|
|
cmapp->info[index].ref_count++;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
nremaining++;
|
|
}
|
|
}
|
|
|
|
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];
|
|
cmapp->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_WIN32_COLORMAP_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));
|
|
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_WIN32_COLORMAP_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;
|
|
PALETTEENTRY pe;
|
|
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (colormap), FALSE);
|
|
g_return_val_if_fail (colors != NULL, FALSE);
|
|
g_return_val_if_fail (success != NULL, ncolors);
|
|
|
|
private = GDK_WIN32_COLORMAP_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++)
|
|
{
|
|
pe.peRed = colors[i].red >> 8;
|
|
pe.peGreen = colors[i].green >> 8;
|
|
pe.peBlue = colors[i].blue >> 8;
|
|
if (alloc_color (colormap, &pe, &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:
|
|
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;
|
|
PALETTEENTRY pe;
|
|
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (colormap), FALSE);
|
|
g_return_val_if_fail (color != NULL, FALSE);
|
|
|
|
private = GDK_WIN32_COLORMAP_DATA (colormap);
|
|
|
|
if (color->pixel < 0 || color->pixel >= colormap->size)
|
|
return FALSE;
|
|
|
|
if (private->use[color->pixel] == GDK_WIN32_PE_STATIC)
|
|
return FALSE;
|
|
|
|
pe.peRed = color->red >> 8;
|
|
pe.peGreen = color->green >> 8;
|
|
pe.peBlue = color->blue >> 8;
|
|
|
|
GDI_CALL (SetPaletteEntries, (private->hpal, color->pixel, 1, &pe));
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_match_color (GdkColormap *cmap,
|
|
GdkColor *color,
|
|
const gchar *available)
|
|
{
|
|
GdkColor *colors;
|
|
guint sum, min;
|
|
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;
|
|
min = 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 < min)
|
|
{
|
|
index = i;
|
|
min = sum;
|
|
}
|
|
}
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
GdkScreen*
|
|
gdk_colormap_get_screen (GdkColormap *cmap)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_COLORMAP (cmap), NULL);
|
|
|
|
return _gdk_screen;
|
|
}
|
|
|