forked from AuroraMiddleware/gtk
caf8ebc6f1
Mon Aug 24 18:37:15 1998 Owen Taylor <otaylor@redhat.com> * gtk/gtktext.c: Reference count the fonts used in the text widget. * gdk/gdk.h gdk/gdkcolor.c: Rename the color allocation freeing functions to be more consistent, and more convenient; leave the old names in for backwards compatibility. * gdk/gdkcolor.c gdk/gdkprivate.h: Reference count the allocations in pseudo-color colormaps to greatly reduce calls to XAllocColor. Keep a per-colormap hashtable to speed up finding if there is an already-allocated matching color. * gdk/gdkcolor.c: Don't just match read the system colormap when the colormap is created, but synchronize our copy with the system colormap periodically. * gdk/gdk.c gdk/gdktypes.h gtk/gtkentry.c gtk/gtktext.c: Change XIM constants names to match GDK conventions * gtk/testinput.c: Allow the drawing area to get the focus. * gtk/testgtk.c: Change around the Text test to demonstrates multiple fonts, use more colors. * gtk/gtkwidget.c: Improve gtk_widget_get_colormap()/visual() so they work after a widget is unrealized. * gtk/gtktext.[ch]: Remove the requirement that the text widget be realized before adding text (!) Allocate colors ourself, instead of requiring the caller allocate them. Allow changing styles to work properly by keeping track of the values for a certain property are default or set explicitely. * gtk/gtkmenu.h: Added some comments. * gtk/gtkentry.c: Changes to match XIM constants. * gtk/gdk.h gdk/gdkwindow.c: Add gdk_drawable_set_data(), for adding keyed data to drawables. (Uses g_dataset internally) * gdk/gdkpixmap.c: Keep track of the colors we allocate, when creating an XPM - store them as user data for the GdkPixmap, so we don't leak colors when we create pixmaps from XPM's. Allocate memory for color information in large blocks instead of as many little pieces.
1259 lines
28 KiB
C
1259 lines
28 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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#include <time.h>
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#include <X11/Xlib.h>
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#include "gdk.h"
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#include "gdkprivate.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 void gdk_colormap_real_destroy (GdkColormap *colormap);
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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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GdkColormapPrivate *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 (GdkColormapPrivate, 1);
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colormap = (GdkColormap*) private;
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private->xdisplay = gdk_display;
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private->visual = visual;
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private->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 = g_new (GdkColor, colormap->size);
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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 (gdk_color_hash,
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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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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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static void
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gdk_colormap_real_destroy (GdkColormap *colormap)
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{
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GdkColormapPrivate *private = (GdkColormapPrivate*) colormap;
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g_return_if_fail (colormap != NULL);
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g_return_if_fail (private->ref_count > 0);
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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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GdkColormap*
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gdk_colormap_ref (GdkColormap *cmap)
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{
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GdkColormapPrivate *private = (GdkColormapPrivate *)cmap;
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g_return_val_if_fail (cmap != NULL, NULL);
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private->ref_count += 1;
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return cmap;
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}
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void
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gdk_colormap_unref (GdkColormap *cmap)
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{
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GdkColormapPrivate *private = (GdkColormapPrivate *)cmap;
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g_return_if_fail (cmap != NULL);
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private->ref_count -= 1;
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if (private->ref_count == 0)
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gdk_colormap_real_destroy (cmap);
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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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GdkColormapPrivate *private = (GdkColormapPrivate *)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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GdkColormapPrivate *private;
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if (!colormap)
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{
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private = g_new (GdkColormapPrivate, 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->visual = gdk_visual_get_system ();
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private->private_val = FALSE;
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private->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->visual->colormap_size;
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if ((private->visual->type == GDK_VISUAL_GRAYSCALE) ||
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(private->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 (gdk_color_hash,
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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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GdkColormapPrivate *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 = (GdkColormapPrivate*) colormap;
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switch (private->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->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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void
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gdk_colors_store (GdkColormap *colormap,
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GdkColor *colors,
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gint ncolors)
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{
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gint i;
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for (i = 0; i < ncolors; i++)
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{
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colormap->colors[i].pixel = colors[i].pixel;
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colormap->colors[i].red = colors[i].red;
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colormap->colors[i].green = colors[i].green;
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colormap->colors[i].blue = colors[i].blue;
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}
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gdk_colormap_change (colormap, ncolors);
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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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GdkColormapPrivate *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 = (GdkColormapPrivate*) 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;
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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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GdkColormapPrivate *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 = (GdkColormapPrivate*) colormap;
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if ((private->visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
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(private->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[in_pixels[i]]);
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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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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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|
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/*
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*--------------------------------------------------------------
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* gdk_color_copy
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*
|
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* Copy a color structure into new storage.
|
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*
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* Arguments:
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* "color" is the color struct to copy.
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*
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* Results:
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* A new color structure. Free it with gdk_color_free.
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*
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*--------------------------------------------------------------
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*/
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|
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static GMemChunk *color_chunk;
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|
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GdkColor*
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gdk_color_copy (GdkColor *color)
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{
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GdkColor *new_color;
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|
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g_return_val_if_fail (color != NULL, NULL);
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|
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if (color_chunk == NULL)
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color_chunk = g_mem_chunk_new ("colors",
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sizeof (GdkColor),
|
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4096,
|
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G_ALLOC_AND_FREE);
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|
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new_color = g_chunk_new (GdkColor, color_chunk);
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*new_color = *color;
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return new_color;
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}
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|
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/*
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*--------------------------------------------------------------
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* gdk_color_free
|
|
*
|
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* Free a color structure obtained from gdk_color_copy. Do not use
|
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* with other color structures.
|
|
*
|
|
* Arguments:
|
|
* "color" is the color struct to free.
|
|
*
|
|
*-------------------------------------------------------------- */
|
|
|
|
void
|
|
gdk_color_free (GdkColor *color)
|
|
{
|
|
g_assert (color_chunk != NULL);
|
|
g_return_if_fail (color != NULL);
|
|
|
|
g_mem_chunk_free (color_chunk, color);
|
|
}
|
|
|
|
gint
|
|
gdk_color_white (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
gint return_val;
|
|
|
|
g_return_val_if_fail (colormap != NULL, FALSE);
|
|
|
|
if (color)
|
|
{
|
|
color->pixel = WhitePixel (gdk_display, gdk_screen);
|
|
color->red = 65535;
|
|
color->green = 65535;
|
|
color->blue = 65535;
|
|
|
|
return_val = gdk_color_alloc (colormap, color);
|
|
}
|
|
else
|
|
return_val = FALSE;
|
|
|
|
return return_val;
|
|
}
|
|
|
|
gint
|
|
gdk_color_black (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
gint return_val;
|
|
|
|
g_return_val_if_fail (colormap != NULL, FALSE);
|
|
|
|
if (color)
|
|
{
|
|
color->pixel = BlackPixel (gdk_display, gdk_screen);
|
|
color->red = 0;
|
|
color->green = 0;
|
|
color->blue = 0;
|
|
|
|
return_val = gdk_color_alloc (colormap, color);
|
|
}
|
|
else
|
|
return_val = FALSE;
|
|
|
|
return return_val;
|
|
}
|
|
|
|
gboolean
|
|
gdk_color_parse (const gchar *spec,
|
|
GdkColor *color)
|
|
{
|
|
Colormap xcolormap;
|
|
XColor xcolor;
|
|
gboolean return_val;
|
|
|
|
g_return_val_if_fail (spec != NULL, FALSE);
|
|
g_return_val_if_fail (color != NULL, FALSE);
|
|
|
|
xcolormap = DefaultColormap (gdk_display, gdk_screen);
|
|
|
|
if (XParseColor (gdk_display, xcolormap, spec, &xcolor))
|
|
{
|
|
return_val = TRUE;
|
|
color->red = xcolor.red;
|
|
color->green = xcolor.green;
|
|
color->blue = xcolor.blue;
|
|
}
|
|
else
|
|
return_val = FALSE;
|
|
|
|
return return_val;
|
|
}
|
|
|
|
/********************
|
|
* 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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
XColor xcolor;
|
|
|
|
private = (GdkColormapPrivate*) 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;
|
|
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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
gulong *pixels;
|
|
Status status;
|
|
gint i, index;
|
|
|
|
private = (GdkColormapPrivate*) 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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
gint i, index;
|
|
XColor *store = g_new (XColor, ncolors);
|
|
gint nstore = 0;
|
|
gint nremaining = 0;
|
|
|
|
private = (GdkColormapPrivate*) 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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
gint i, index;
|
|
gint nremaining = 0;
|
|
gint nfailed = 0;
|
|
|
|
private = (GdkColormapPrivate*) 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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
GdkColor *lookup_color;
|
|
gint i;
|
|
gint nremaining = 0;
|
|
|
|
private = (GdkColormapPrivate*) 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)
|
|
{
|
|
GdkColormapPrivate *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 = (GdkColormapPrivate*) colormap;
|
|
|
|
for (i=0; i<ncolors; i++)
|
|
{
|
|
success[i] = FALSE;
|
|
}
|
|
|
|
switch (private->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->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_colormap_alloc_color (GdkColormap *colormap,
|
|
GdkColor *color,
|
|
gboolean writeable,
|
|
gboolean best_match)
|
|
{
|
|
gboolean success;
|
|
|
|
gdk_colormap_alloc_colors (colormap, color, 1, writeable, best_match,
|
|
&success);
|
|
|
|
return success;
|
|
}
|
|
|
|
/* This is almost identical to gdk_colors_free.
|
|
* Keep them in sync!
|
|
*/
|
|
void
|
|
gdk_colormap_free_colors (GdkColormap *colormap,
|
|
GdkColor *colors,
|
|
gint ncolors)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
gulong *pixels;
|
|
gint npixels = 0;
|
|
gint i;
|
|
|
|
g_return_if_fail (colormap != NULL);
|
|
g_return_if_fail (colors != NULL);
|
|
|
|
private = (GdkColormapPrivate*) colormap;
|
|
|
|
if ((private->visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
|
|
(private->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, &colors[i]);
|
|
private->info[pixel].flags = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (npixels)
|
|
XFreeColors (private->xdisplay, private->xcolormap,
|
|
pixels, npixels, 0);
|
|
|
|
g_free (pixels);
|
|
}
|
|
|
|
gboolean
|
|
gdk_color_alloc (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
gboolean success;
|
|
|
|
gdk_colormap_alloc_colors (colormap, color, 1, FALSE, TRUE, &success);
|
|
|
|
return success;
|
|
}
|
|
|
|
gboolean
|
|
gdk_color_change (GdkColormap *colormap,
|
|
GdkColor *color)
|
|
{
|
|
GdkColormapPrivate *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 = (GdkColormapPrivate*) colormap;
|
|
XStoreColor (private->xdisplay, private->xcolormap, &xcolor);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
guint
|
|
gdk_color_hash (const GdkColor *colora,
|
|
const GdkColor *colorb)
|
|
{
|
|
return ((colora->red) +
|
|
(colora->green << 11) +
|
|
(colora->blue << 22) +
|
|
(colora->blue >> 6));
|
|
}
|
|
|
|
gint
|
|
gdk_color_equal (const GdkColor *colora,
|
|
const GdkColor *colorb)
|
|
{
|
|
g_return_val_if_fail (colora != NULL, FALSE);
|
|
g_return_val_if_fail (colorb != NULL, FALSE);
|
|
|
|
return ((colora->red == colorb->red) &&
|
|
(colora->green == colorb->green) &&
|
|
(colora->blue == colorb->blue));
|
|
}
|
|
|
|
/* 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;
|
|
GdkColormapPrivate *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 (GdkColormapPrivate, 1);
|
|
colormap = (GdkColormap*) private;
|
|
|
|
private->xdisplay = gdk_display;
|
|
private->xcolormap = xcolormap;
|
|
private->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)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GCompareFunc) gdk_colormap_cmp);
|
|
|
|
private = (GdkColormapPrivate*) cmap;
|
|
|
|
g_hash_table_insert (colormap_hash, &private->xcolormap, cmap);
|
|
}
|
|
|
|
static void
|
|
gdk_colormap_remove (GdkColormap *cmap)
|
|
{
|
|
GdkColormapPrivate *private;
|
|
|
|
if (!colormap_hash)
|
|
colormap_hash = g_hash_table_new ((GHashFunc) gdk_colormap_hash,
|
|
(GCompareFunc) gdk_colormap_cmp);
|
|
|
|
private = (GdkColormapPrivate*) 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);
|
|
}
|