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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2007-2008 Richard Hughes <richard@hughsie.com>
* Copyright (C) 2012-2021 MATE Developers
*
* Licensed under the GNU General Public License Version 2
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <glib.h>
#include "egg-color.h"
/**
* egg_color_from_rgb:
* @red: The red value
* @green: The green value
* @blue: The blue value
**/
guint32
egg_color_from_rgb (guint8 red, guint8 green, guint8 blue)
{
guint32 color = 0;
color += (guint32) red * 0x10000;
color += (guint32) green * 0x100;
color += (guint32) blue;
return color;
}
/**
* egg_color_to_rgb:
* @red: The red value
* @green: The green value
* @blue: The blue value
**/
void
egg_color_to_rgb (guint32 color, guint8 *red, guint8 *green, guint8 *blue)
{
*red = (color & 0xff0000) / 0x10000;
*green = (color & 0x00ff00) / 0x100;
*blue = color & 0x0000ff;
}
/***************************************************************************
*** MAKE CHECK TESTS ***
***************************************************************************/
#ifdef EGG_TEST
#include "egg-test.h"
void
egg_color_test (gpointer data)
{
guint8 r, g, b;
guint32 color;
EggTest *test = (EggTest *) data;
if (egg_test_start (test, "EggColor") == FALSE) {
return;
}
/************************************************************/
egg_test_title (test, "get red");
egg_color_to_rgb (0xff0000, &r, &g, &b);
if (r == 255 && g == 0 && b == 0) {
egg_test_success (test, "got red");
} else {
egg_test_failed (test, "could not get red (%i, %i, %i)", r, g, b);
}
/************************************************************/
egg_test_title (test, "get green");
egg_color_to_rgb (0x00ff00, &r, &g, &b);
if (r == 0 && g == 255 && b == 0) {
egg_test_success (test, "got green");
} else {
egg_test_failed (test, "could not get green (%i, %i, %i)", r, g, b);
}
/************************************************************/
egg_test_title (test, "get blue");
egg_color_to_rgb (0x0000ff, &r, &g, &b);
if (r == 0 && g == 0 && b == 255) {
egg_test_success (test, "got blue");
} else {
egg_test_failed (test, "could not get blue (%i, %i, %i)", r, g, b);
}
/************************************************************/
egg_test_title (test, "get black");
egg_color_to_rgb (0x000000, &r, &g, &b);
if (r == 0 && g == 0 && b == 0) {
egg_test_success (test, "got black");
} else {
egg_test_failed (test, "could not get black (%i, %i, %i)", r, g, b);
}
/************************************************************/
egg_test_title (test, "get white");
egg_color_to_rgb (0xffffff, &r, &g, &b);
if (r == 255 && g == 255 && b == 255) {
egg_test_success (test, "got white");
} else {
egg_test_failed (test, "could not get white (%i, %i, %i)", r, g, b);
}
/************************************************************/
egg_test_title (test, "set red");
color = egg_color_from_rgb (0xff, 0x00, 0x00);
if (color == 0xff0000) {
egg_test_success (test, "set red");
} else {
egg_test_failed (test, "could not set red (%i)", color);
}
/************************************************************/
egg_test_title (test, "set green");
color = egg_color_from_rgb (0x00, 0xff, 0x00);
if (color == 0x00ff00) {
egg_test_success (test, "set green");
} else {
egg_test_failed (test, "could not set green (%i)", color);
}
/************************************************************/
egg_test_title (test, "set blue");
color = egg_color_from_rgb (0x00, 0x00, 0xff);
if (color == 0x0000ff) {
egg_test_success (test, "set blue");
} else {
egg_test_failed (test, "could not set blue (%i)", color);
}
/************************************************************/
egg_test_title (test, "set white");
color = egg_color_from_rgb (0xff, 0xff, 0xff);
if (color == 0xffffff) {
egg_test_success (test, "set white");
} else {
egg_test_failed (test, "could not set white (%i)", color);
}
egg_test_end (test);
}
#endif
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