/*
This file is part of RouteConverter.
RouteConverter 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.
RouteConverter 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 RouteConverter; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Copyright (C) 2007 Christian Pesch. All Rights Reserved.
*/
package slash.navigation.mapview.mapsforge.helpers;
import slash.navigation.converter.gui.models.ColorModel;
import java.awt.*;
/**
* Provides {@link Color} helpers.
*
* @author Christian Pesch
*/
public class ColorHelper {
private static final int MINIMUM_ALPHA = (int)(256 * 0.3);
public static int asRGBA(ColorModel colorModel) {
return asRGBA(colorModel.getColor());
}
static int asRGBA(Color color) {
int rgba = color.getRGB();
int alpha = MINIMUM_ALPHA + (int)(color.getAlpha() * (256.0 / MINIMUM_ALPHA) * 256.0);
alpha = alpha << 24;
return alpha | rgba;
}
}