forked from osmocom/wireshark
34de3c15d9
but toolkit-dependent implementations, for manipulating colors, and have "gtk/color_utils.h" declare them (the header file should eventually be moved to the top-level directory). Move the routines to convert between GdkColor and color_t out of there into "colors.c", and move their declarations into "colors.h", as their APIs are toolkit-dependent. Have the first such routine be a "create_color()" routine, which takes RGB values and initializes a "color_t", including doing any toolkit-dependent work necessary for that; use that in the "gtk/color_filters.c" code (the goal is to remove as many of the toolkit dependencies as possible from that code, and move it to the top-level directory). svn path=/trunk/; revision=11497
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* colors.c
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* Routines for colors
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gtk/gtk.h>
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#include <string.h>
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#include "color.h" /* to declare "color_t" */
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#include "colors.h"
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#include "simple_dialog.h"
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#include "gtkglobals.h"
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static GdkColormap* sys_cmap;
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static GdkColormap* our_cmap = NULL;
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GdkColor WHITE = { 0, 65535, 65535, 65535 };
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GdkColor BLACK = { 0, 0, 0, 0 };
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/* Initialize the colors */
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void
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colors_init(void)
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{
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gboolean got_white, got_black;
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sys_cmap = gdk_colormap_get_system();
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/* Allocate "constant" colors. */
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got_white = get_color(&WHITE);
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got_black = get_color(&BLACK);
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/* Got milk? */
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if (!got_white) {
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if (!got_black)
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simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
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"Could not allocate colors black or white.");
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else
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simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
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"Could not allocate color white.");
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} else {
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if (!got_black)
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simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
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"Could not allocate color black.");
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}
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}
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/* allocate a color from the color map */
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gboolean
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get_color(GdkColor *new_color)
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{
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GdkVisual *pv;
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if (!our_cmap) {
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if (!gdk_colormap_alloc_color (sys_cmap, new_color, FALSE,
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TRUE)) {
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pv = gdk_visual_get_best();
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if (!(our_cmap = gdk_colormap_new(pv, TRUE))) {
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simple_dialog(ESD_TYPE_WARN, ESD_BTN_OK,
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"Could not create new colormap");
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}
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} else
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return (TRUE);
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}
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return (gdk_colormap_alloc_color(our_cmap, new_color, FALSE, TRUE));
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}
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void
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color_t_to_gdkcolor(GdkColor *target, color_t *source)
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{
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target->pixel = source->pixel;
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target->red = source->red;
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target->green = source->green;
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target->blue = source->blue;
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}
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void
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gdkcolor_to_color_t(color_t *target, GdkColor *source)
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{
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target->pixel = source->pixel;
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target->red = source->red;
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target->green = source->green;
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target->blue = source->blue;
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}
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