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/*
* e_color.c: General color allocation utilities
*
* Author:
* Miguel de Icaza (miguel@kernel.org)
*
* We keep our own color context, as the color allocation might take place
* before things are realized.
*/
#include <config.h>
#include <gtk/gtkwidget.h>
#include "e-colors.h"
static gboolean e_color_inited;
static GdkColorContext *e_color_context;
GdkColor e_white, e_dark_gray, e_black;
int
e_color_alloc (gushort red, gushort green, gushort blue)
{
int failed;
if (!e_color_inited)
e_color_init ();
return gdk_color_context_get_pixel (e_color_context,
red, green, blue, &failed);
}
void
e_color_alloc_gdk (GdkColor *c)
{
int failed;
g_return_if_fail (c != NULL);
if (!e_color_inited)
e_color_init ();
c->pixel = gdk_color_context_get_pixel (e_color_context, c->red, c->green, c->blue, &failed);
}
void
e_color_alloc_name (const char *name, GdkColor *c)
{
int failed;
g_return_if_fail (name != NULL);
g_return_if_fail (c != NULL);
if (!e_color_inited)
e_color_init ();
gdk_color_parse (name, c);
c->pixel = 0;
c->pixel = gdk_color_context_get_pixel (e_color_context, c->red, c->green, c->blue, &failed);
}
void
e_color_init (void)
{
GdkColormap *colormap;
/* It's surprisingly easy to end up calling this twice. Survive. */
if (e_color_inited)
return;
colormap = gtk_widget_get_default_colormap ();
/* Initialize the color context */
e_color_context = gdk_color_context_new (
gtk_widget_get_default_visual (), colormap);
e_color_inited = TRUE;
/* Allocate the default colors */
gdk_color_white (colormap, &e_white);
gdk_color_black (colormap, &e_black);
e_color_alloc_name ("gray20", &e_dark_gray);
}
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