mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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e9b6bfcc01
Mon Nov 8 14:47:04 1999 Owen Taylor <otaylor@redhat.com>
Move all X specific code into the x11/ directory.
Aside from shuffling things around, did the following:
* gdk/gdkprivate.h gdk/gdk.h gdk/x11/gdkmain-x11.h: Add
gdk_arg_context_* - a simple argument parsing system
in the style of popt.
* gdk/gdkdrawable.[ch] gdk/gdkprivate.h gdk/gdkwindow.[ch]
gdk/x11/gdkprivate-x11.h:
Remove X specific stuff from GdkDrawable and GdkWindowPrivate -
add ->klass and ->klass_data fields. The klass_data
field points to an auxilliary structure that is
windowing system dependent.
* gdk/gdkfont.c: Make most of the measurement functions
simply wrappers around gdk_text_extents().
* gdk/gdkfont.c gdk/gdkprivate.h gdk/x11/gdkfont-x11.c: Add a
_gdk_font_strlen() function that hides the weird
behavior in gtk+-1.[02] where a string is interpreted
differently for 8-bit and 16-bit fonts.
* gdk/gdkevents.c: Add a new function gdk_event_button_generate()
to store common code for synthesizing double/triple
press events.
* gdk/gdkgc.[ch]: Virtualize in the same way as gdkdrawable.h.
Make all the function that modify an existing GC
simply wrappers around gdk_gc_set_values().
* gdk/gdkcc.[ch]: Moved into x11/ directory in preparation
for throwing out later.
* gdk/gdkfont.c gdk/gdkimage.c gdk/gdkcolor.c: Change GdkFontPrivate,
GdkImagePrivate and GdkColormapPrivate to have a
windowing system dependent part (GdkFontPrivateX etc.)
that "derives" from the system-independent part.
* configure.in gdk/x11/Makefile.in gdk/x11/gdkinput*.c:
Got rid of the included-source-files for XInput in
favor of automake conditionals. (Which didn't exist
when XInput support was originally added.)
* gdk/gdkrgb.c: Remove the visual id from the debugging
statements since that is X11 specific; print out
type/depth info instead.
1075 lines
25 KiB
C
1075 lines
25 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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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 1997-1999. 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 <time.h>
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#include "gdkcolor.h"
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#include "gdkx.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_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 gint gdk_colormap_cmp (Colormap *a,
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Colormap *b);
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static GHashTable *colormap_hash = NULL;
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GdkColormap*
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gdk_colormap_new (GdkVisual *visual,
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gint private_cmap)
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{
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GdkColormap *colormap;
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GdkColormapPrivateX *private;
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Visual *xvisual;
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int size;
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int i;
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g_return_val_if_fail (visual != NULL, NULL);
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private = g_new (GdkColormapPrivateX, 1);
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colormap = (GdkColormap*) private;
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private->xdisplay = gdk_display;
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private->base.visual = visual;
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private->base.ref_count = 1;
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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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xvisual = ((GdkVisualPrivate*) visual)->xvisual;
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colormap->size = visual->colormap_size;
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colormap->colors = NULL;
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switch (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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private->info = g_new0 (GdkColorInfo, colormap->size);
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colormap->colors = g_new (GdkColor, colormap->size);
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private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
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(GCompareFunc) gdk_color_equal);
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private->private_val = private_cmap;
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private->xcolormap = XCreateColormap (private->xdisplay, gdk_root_window,
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xvisual, (private_cmap) ? (AllocAll) : (AllocNone));
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if (private_cmap)
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{
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XColor *default_colors;
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default_colors = g_new (XColor, colormap->size);
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for (i = 0; i < colormap->size; i++)
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default_colors[i].pixel = i;
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XQueryColors (private->xdisplay,
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DefaultColormap (private->xdisplay, gdk_screen),
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default_colors, colormap->size);
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for (i = 0; i < colormap->size; i++)
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{
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colormap->colors[i].pixel = default_colors[i].pixel;
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colormap->colors[i].red = default_colors[i].red;
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colormap->colors[i].green = default_colors[i].green;
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colormap->colors[i].blue = default_colors[i].blue;
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}
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gdk_colormap_change (colormap, colormap->size);
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g_free (default_colors);
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}
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break;
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case GDK_VISUAL_DIRECT_COLOR:
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private->private_val = TRUE;
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private->xcolormap = XCreateColormap (private->xdisplay, gdk_root_window,
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xvisual, AllocAll);
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colormap->colors = g_new (GdkColor, colormap->size);
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size = 1 << visual->red_prec;
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for (i = 0; i < size; i++)
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colormap->colors[i].red = i * 65535 / (size - 1);
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size = 1 << visual->green_prec;
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for (i = 0; i < size; i++)
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colormap->colors[i].green = i * 65535 / (size - 1);
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size = 1 << visual->blue_prec;
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for (i = 0; i < size; i++)
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colormap->colors[i].blue = i * 65535 / (size - 1);
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gdk_colormap_change (colormap, colormap->size);
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break;
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case GDK_VISUAL_STATIC_GRAY:
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case GDK_VISUAL_STATIC_COLOR:
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case GDK_VISUAL_TRUE_COLOR:
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private->private_val = FALSE;
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private->xcolormap = XCreateColormap (private->xdisplay, gdk_root_window,
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xvisual, AllocNone);
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break;
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}
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gdk_colormap_add (colormap);
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return colormap;
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}
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void
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_gdk_colormap_real_destroy (GdkColormap *colormap)
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{
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GdkColormapPrivateX *private = (GdkColormapPrivateX*) colormap;
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gdk_colormap_remove (colormap);
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XFreeColormap (private->xdisplay, 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_free (colormap);
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}
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#define MIN_SYNC_TIME 2
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void
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gdk_colormap_sync (GdkColormap *colormap,
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gboolean force)
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{
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time_t current_time;
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GdkColormapPrivateX *private = (GdkColormapPrivateX *)colormap;
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XColor *xpalette;
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gint nlookup;
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gint i;
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g_return_if_fail (colormap != NULL);
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current_time = time (NULL);
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if (!force && ((current_time - private->last_sync_time) < MIN_SYNC_TIME))
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return;
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private->last_sync_time = current_time;
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nlookup = 0;
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xpalette = g_new (XColor, colormap->size);
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for (i = 0; i < colormap->size; i++)
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{
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if (private->info[i].ref_count == 0)
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{
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xpalette[nlookup].pixel = i;
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xpalette[nlookup].red = 0;
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xpalette[nlookup].green = 0;
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xpalette[nlookup].blue = 0;
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nlookup++;
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}
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}
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XQueryColors (gdk_display, private->xcolormap, xpalette, nlookup);
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for (i = 0; i < nlookup; i++)
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{
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gulong pixel = xpalette[i].pixel;
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colormap->colors[pixel].pixel = pixel;
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colormap->colors[pixel].red = xpalette[i].red;
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colormap->colors[pixel].green = xpalette[i].green;
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colormap->colors[pixel].blue = xpalette[i].blue;
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}
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g_free (xpalette);
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}
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GdkColormap*
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gdk_colormap_get_system (void)
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{
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static GdkColormap *colormap = NULL;
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GdkColormapPrivateX *private;
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if (!colormap)
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{
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private = g_new (GdkColormapPrivateX, 1);
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colormap = (GdkColormap*) private;
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private->xdisplay = gdk_display;
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private->xcolormap = DefaultColormap (gdk_display, gdk_screen);
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private->base.visual = gdk_visual_get_system ();
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private->private_val = FALSE;
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private->base.ref_count = 1;
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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->colors = NULL;
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colormap->size = private->base.visual->colormap_size;
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if ((private->base.visual->type == GDK_VISUAL_GRAYSCALE) ||
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(private->base.visual->type == GDK_VISUAL_PSEUDO_COLOR))
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{
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private->info = g_new0 (GdkColorInfo, colormap->size);
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colormap->colors = g_new (GdkColor, colormap->size);
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private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
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(GCompareFunc) gdk_color_equal);
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gdk_colormap_sync (colormap, TRUE);
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}
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gdk_colormap_add (colormap);
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}
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return colormap;
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}
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gint
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gdk_colormap_get_system_size (void)
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{
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return DisplayCells (gdk_display, gdk_screen);
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}
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void
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gdk_colormap_change (GdkColormap *colormap,
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gint ncolors)
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{
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GdkColormapPrivateX *private;
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GdkVisual *visual;
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XColor *palette;
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gint shift;
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int max_colors;
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int size;
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int i;
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g_return_if_fail (colormap != NULL);
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palette = g_new (XColor, ncolors);
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private = (GdkColormapPrivateX*) colormap;
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switch (private->base.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 < ncolors; i++)
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{
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palette[i].pixel = colormap->colors[i].pixel;
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palette[i].red = colormap->colors[i].red;
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palette[i].green = colormap->colors[i].green;
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palette[i].blue = colormap->colors[i].blue;
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palette[i].flags = DoRed | DoGreen | DoBlue;
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}
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XStoreColors (private->xdisplay, private->xcolormap, palette, ncolors);
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break;
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case GDK_VISUAL_DIRECT_COLOR:
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visual = private->base.visual;
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shift = visual->red_shift;
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max_colors = 1 << visual->red_prec;
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size = (ncolors < max_colors) ? (ncolors) : (max_colors);
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for (i = 0; i < size; i++)
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{
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palette[i].pixel = i << shift;
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palette[i].red = colormap->colors[i].red;
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palette[i].flags = DoRed;
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}
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XStoreColors (private->xdisplay, private->xcolormap, palette, size);
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shift = visual->green_shift;
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max_colors = 1 << visual->green_prec;
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size = (ncolors < max_colors) ? (ncolors) : (max_colors);
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for (i = 0; i < size; i++)
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{
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palette[i].pixel = i << shift;
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palette[i].green = colormap->colors[i].green;
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palette[i].flags = DoGreen;
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}
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XStoreColors (private->xdisplay, private->xcolormap, palette, size);
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shift = visual->blue_shift;
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max_colors = 1 << visual->blue_prec;
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size = (ncolors < max_colors) ? (ncolors) : (max_colors);
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for (i = 0; i < size; i++)
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{
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palette[i].pixel = i << shift;
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palette[i].blue = colormap->colors[i].blue;
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palette[i].flags = DoBlue;
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}
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XStoreColors (private->xdisplay, private->xcolormap, palette, size);
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break;
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default:
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break;
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}
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g_free (palette);
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}
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gboolean
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gdk_colors_alloc (GdkColormap *colormap,
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gint contiguous,
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gulong *planes,
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gint nplanes,
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gulong *pixels,
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gint npixels)
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{
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GdkColormapPrivateX *private;
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gint return_val;
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gint i;
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g_return_val_if_fail (colormap != NULL, 0);
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private = (GdkColormapPrivateX*) colormap;
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return_val = XAllocColorCells (private->xdisplay, private->xcolormap,
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contiguous, planes, nplanes, pixels, npixels);
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if (return_val)
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{
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for (i=0; i<npixels; i++)
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{
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private->info[pixels[i]].ref_count++;
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private->info[pixels[i]].flags |= GDK_COLOR_WRITEABLE;
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}
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}
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return return_val != 0;
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}
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gboolean
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gdk_color_parse (const gchar *spec,
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GdkColor *color)
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{
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Colormap xcolormap;
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XColor xcolor;
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gboolean return_val;
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g_return_val_if_fail (spec != NULL, FALSE);
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g_return_val_if_fail (color != NULL, FALSE);
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xcolormap = DefaultColormap (gdk_display, gdk_screen);
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if (XParseColor (gdk_display, xcolormap, spec, &xcolor))
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{
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return_val = TRUE;
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color->red = xcolor.red;
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color->green = xcolor.green;
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color->blue = xcolor.blue;
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}
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else
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return_val = FALSE;
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return return_val;
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}
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/* This is almost identical to gdk_colormap_free_colors.
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* Keep them in sync!
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*/
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void
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gdk_colors_free (GdkColormap *colormap,
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gulong *in_pixels,
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gint in_npixels,
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gulong planes)
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{
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GdkColormapPrivateX *private;
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gulong *pixels;
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gint npixels = 0;
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gint i;
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g_return_if_fail (colormap != NULL);
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g_return_if_fail (in_pixels != NULL);
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private = (GdkColormapPrivateX*) colormap;
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if ((private->base.visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
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(private->base.visual->type != GDK_VISUAL_GRAYSCALE))
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return;
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pixels = g_new (gulong, in_npixels);
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for (i=0; i<in_npixels; i++)
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{
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gulong pixel = in_pixels[i];
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if (private->info[pixel].ref_count)
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{
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private->info[pixel].ref_count--;
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if (private->info[pixel].ref_count == 0)
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{
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pixels[npixels++] = pixel;
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if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
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g_hash_table_remove (private->hash, &colormap->colors[pixel]);
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private->info[pixel].flags = 0;
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}
|
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}
|
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}
|
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|
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if (npixels)
|
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XFreeColors (private->xdisplay, private->xcolormap,
|
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pixels, npixels, planes);
|
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g_free (pixels);
|
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}
|
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|
|
/* This is almost identical to gdk_colors_free.
|
|
* Keep them in sync!
|
|
*/
|
|
void
|
|
gdk_colormap_free_colors (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
gulong *pixels;
|
|
gint npixels = 0;
|
|
gint i;
|
|
|
|
g_return_if_fail (colormap != NULL);
|
|
g_return_if_fail (colors != NULL);
|
|
|
|
private = (GdkColormapPrivateX*) colormap;
|
|
|
|
if ((private->base.visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
|
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(private->base.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)
|
|
XFreeColors (private->xdisplay, private->xcolormap,
|
|
pixels, npixels, 0);
|
|
|
|
g_free (pixels);
|
|
}
|
|
|
|
/********************
|
|
* Color allocation *
|
|
********************/
|
|
|
|
/* Try to allocate a single color using XAllocColor. If it succeeds,
|
|
* cache the result in our colormap, and store in ret.
|
|
*/
|
|
static gboolean
|
|
gdk_colormap_alloc1 (GdkColormap *colormap,
|
|
GdkColor *color,
|
|
GdkColor *ret)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
XColor xcolor;
|
|
|
|
private = (GdkColormapPrivateX*) colormap;
|
|
|
|
xcolor.red = color->red;
|
|
xcolor.green = color->green;
|
|
xcolor.blue = color->blue;
|
|
xcolor.pixel = color->pixel;
|
|
xcolor.flags = DoRed | DoGreen | DoBlue;
|
|
|
|
if (XAllocColor (private->xdisplay, private->xcolormap, &xcolor))
|
|
{
|
|
ret->pixel = xcolor.pixel;
|
|
ret->red = xcolor.red;
|
|
ret->green = xcolor.green;
|
|
ret->blue = xcolor.blue;
|
|
|
|
if (ret->pixel < colormap->size)
|
|
{
|
|
if (private->info[ret->pixel].ref_count) /* got a duplicate */
|
|
{
|
|
XFreeColors (private->xdisplay, private->xcolormap,
|
|
&ret->pixel, 1, 0);
|
|
}
|
|
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;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_alloc_colors_writeable (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors,
|
|
gboolean writeable,
|
|
gboolean best_match,
|
|
gboolean *success)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
gulong *pixels;
|
|
Status status;
|
|
gint i, index;
|
|
|
|
private = (GdkColormapPrivateX*) 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 = XAllocColorCells (private->xdisplay, 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)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
gint i, index;
|
|
XColor *store = g_new (XColor, ncolors);
|
|
gint nstore = 0;
|
|
gint nremaining = 0;
|
|
|
|
private = (GdkColormapPrivateX*) 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].red = colors[i].red;
|
|
store[nstore].blue = colors[i].blue;
|
|
store[nstore].green = colors[i].green;
|
|
store[nstore].pixel = index;
|
|
nstore++;
|
|
|
|
success[i] = TRUE;
|
|
|
|
colors[i].pixel = index;
|
|
private->info[index].ref_count++;
|
|
}
|
|
else
|
|
nremaining++;
|
|
}
|
|
}
|
|
|
|
XStoreColors (private->xdisplay, private->xcolormap, store, nstore);
|
|
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)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
gint i, index;
|
|
gint nremaining = 0;
|
|
gint nfailed = 0;
|
|
|
|
private = (GdkColormapPrivateX*) 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)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
GdkColor *lookup_color;
|
|
gint i;
|
|
gint nremaining = 0;
|
|
|
|
private = (GdkColormapPrivateX*) 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)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
GdkVisual *visual;
|
|
gint i;
|
|
gint nremaining = 0;
|
|
XColor xcolor;
|
|
|
|
g_return_val_if_fail (colormap != NULL, FALSE);
|
|
g_return_val_if_fail (colors != NULL, FALSE);
|
|
|
|
private = (GdkColormapPrivateX*) colormap;
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
success[i] = FALSE;
|
|
}
|
|
|
|
switch (private->base.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_DIRECT_COLOR:
|
|
case GDK_VISUAL_TRUE_COLOR:
|
|
visual = private->base.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.red = colors[i].red;
|
|
xcolor.green = colors[i].green;
|
|
xcolor.blue = colors[i].blue;
|
|
xcolor.pixel = colors[i].pixel;
|
|
xcolor.flags = DoRed | DoGreen | DoBlue;
|
|
|
|
if (XAllocColor (private->xdisplay, private->xcolormap, &xcolor))
|
|
{
|
|
colors[i].pixel = xcolor.pixel;
|
|
success[i] = TRUE;
|
|
}
|
|
else
|
|
nremaining++;
|
|
}
|
|
break;
|
|
}
|
|
return nremaining;
|
|
}
|
|
|
|
gboolean
|
|
gdk_color_change (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
XColor xcolor;
|
|
|
|
g_return_val_if_fail (colormap != NULL, FALSE);
|
|
g_return_val_if_fail (color != NULL, FALSE);
|
|
|
|
xcolor.pixel = color->pixel;
|
|
xcolor.red = color->red;
|
|
xcolor.green = color->green;
|
|
xcolor.blue = color->blue;
|
|
xcolor.flags = DoRed | DoGreen | DoBlue;
|
|
|
|
private = (GdkColormapPrivateX*) colormap;
|
|
XStoreColor (private->xdisplay, private->xcolormap, &xcolor);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* XXX: Do not use this function until it is fixed. An X Colormap
|
|
* is useless unless we also have the visual.
|
|
*/
|
|
GdkColormap*
|
|
gdkx_colormap_get (Colormap xcolormap)
|
|
{
|
|
GdkColormap *colormap;
|
|
GdkColormapPrivateX *private;
|
|
|
|
colormap = gdk_colormap_lookup (xcolormap);
|
|
if (colormap)
|
|
return colormap;
|
|
|
|
if (xcolormap == DefaultColormap (gdk_display, gdk_screen))
|
|
return gdk_colormap_get_system ();
|
|
|
|
private = g_new (GdkColormapPrivateX, 1);
|
|
colormap = (GdkColormap*) private;
|
|
|
|
private->xdisplay = gdk_display;
|
|
private->xcolormap = xcolormap;
|
|
private->base.visual = NULL;
|
|
private->private_val = TRUE;
|
|
|
|
/* To do the following safely, we would have to have some way of finding
|
|
* out what the size or visual of the given colormap is. It seems
|
|
* X doesn't allow this
|
|
*/
|
|
|
|
#if 0
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
xpalette[i].pixel = i;
|
|
xpalette[i].red = 0;
|
|
xpalette[i].green = 0;
|
|
xpalette[i].blue = 0;
|
|
}
|
|
|
|
XQueryColors (gdk_display, private->xcolormap, xpalette, 256);
|
|
|
|
for (i = 0; i < 256; i++)
|
|
{
|
|
colormap->colors[i].pixel = xpalette[i].pixel;
|
|
colormap->colors[i].red = xpalette[i].red;
|
|
colormap->colors[i].green = xpalette[i].green;
|
|
colormap->colors[i].blue = xpalette[i].blue;
|
|
}
|
|
#endif
|
|
|
|
colormap->colors = NULL;
|
|
colormap->size = 0;
|
|
|
|
gdk_colormap_add (colormap);
|
|
|
|
return colormap;
|
|
}
|
|
|
|
|
|
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)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GCompareFunc) gdk_colormap_cmp);
|
|
|
|
private = (GdkColormapPrivateX*)cmap;
|
|
|
|
g_hash_table_insert (colormap_hash, &private->xcolormap, cmap);
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_remove (GdkColormap *cmap)
|
|
{
|
|
GdkColormapPrivateX *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GCompareFunc) gdk_colormap_cmp);
|
|
|
|
private = (GdkColormapPrivateX *)cmap;
|
|
|
|
g_hash_table_remove (colormap_hash, &private->xcolormap);
|
|
}
|
|
|
|
static guint
|
|
gdk_colormap_hash (Colormap *cmap)
|
|
{
|
|
return *cmap;
|
|
}
|
|
|
|
static gint
|
|
gdk_colormap_cmp (Colormap *a,
|
|
Colormap *b)
|
|
{
|
|
return (*a == *b);
|
|
}
|