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/*
* color.c: Color allocation on the Gnumeric spreadsheet
*
* Author:
* Miguel de Icaza (miguel@kernel.org)
*
* We keep our own color context, as the color allocation might take place
* before any of our Canvases are realized.
*/
#include <config.h>
#include <gnome.h>
#include "color.h"
static int color_inited;
static GdkColorContext *gnumeric_color_context;
/* Public colors: shared by all of our items in Gnumeric */
GdkColor gs_white, gs_black, gs_light_gray, gs_dark_gray, gs_red;
int
color_alloc (gushort red, gushort green, gushort blue)
{
int failed;
if (!color_inited)
color_init ();
return gdk_color_context_get_pixel (gnumeric_color_context,
red, green, blue, &failed);
}
void
color_alloc_gdk (GdkColor *c)
{
int failed;
g_return_if_fail (c != NULL);
c->pixel = gdk_color_context_get_pixel (gnumeric_color_context, c->red, c->green, c->blue, &failed);
}
void
color_alloc_name (const char *name, GdkColor *c)
{
int failed;
g_return_if_fail (name != NULL);
g_return_if_fail (c != NULL);
gdk_color_parse (name, c);
c->pixel = 0;
c->pixel = gdk_color_context_get_pixel (gnumeric_color_context, c->red, c->green, c->blue, &failed);
}
void
color_init (void)
{
GdkColormap *colormap = gtk_widget_get_default_colormap ();
/* Initialize the color context */
gnumeric_color_context = gdk_color_context_new (
gtk_widget_get_default_visual (), colormap);
/* Allocate the default colors */
gdk_color_white (colormap, &gs_white);
gdk_color_black (colormap, &gs_black);
color_alloc_name ("gray78", &gs_light_gray);
color_alloc_name ("gray20", &gs_dark_gray);
color_alloc_name ("red", &gs_red);
color_inited = 1;
}
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