/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package com.sun.tools.visualvm.modules.tracer.impl.timeline;
import java.awt.Color;
/**
* Utility class to access colors predefined for VisualVM.
*
* @author Jiri Sedlacek
*/
final class TimelineColorFactory {
private static final Color[] PREDEFINED_COLORS = new Color[] {
new Color(241, 154, 42),
new Color( 32, 171, 217),
new Color(144, 97, 207),
new Color(158, 156, 0)
};
private static final Color[][] PREDEFINED_GRADIENTS = new Color[][] {
new Color[] { new Color(245, 204, 152), new Color(255, 243, 226) },
new Color[] { new Color(151, 223, 246), new Color(227, 248, 255) },
new Color[] { new Color(200, 163, 248), new Color(242, 232, 255) },
new Color[] { new Color(212, 211, 131), new Color(244, 243, 217) }
};
// /**
// * Returns number of colors predefined for VisualVM charts.
// * Always contains at least 4 colors.
// *
// * @return number of colors predefined for VisualVM charts
// */
// private static int getPredefinedColorsCount() {
// return PREDEFINED_COLORS.length;
// }
/**
* Returns a color predefined for VisualVM charts.
*
* @param index index of the predefined color
* @return color predefined for VisualVM charts
*/
private static Color getPredefinedColor(int index) {
return PREDEFINED_COLORS[index];
}
static Color getColor(int index) {
Color color;
if (index >= PREDEFINED_COLORS.length) {
color = getPredefinedColor(index % PREDEFINED_COLORS.length);
int darkerFactor = index / PREDEFINED_COLORS.length;
while (darkerFactor-- > 0) color = color.darker();
} else {
color = getPredefinedColor(index);
}
return color;
}
// /**
// * Returns number of color pairs predefined for VisualVM charts gradients.
// * Always contains at least 4 color pairs.
// *
// * @return number of color pairs predefined for VisualVM charts gradients
// */
// private static int getPredefinedGradientsCount() {
// return PREDEFINED_GRADIENTS.length;
// }
/**
* Returns a color pair predefined for VisualVM charts gradients.
*
* @param index index of the predefined color pair
* @return color pair predefined for VisualVM charts gradients
*/
private static Color[] getPredefinedGradient(int index) {
return PREDEFINED_GRADIENTS[index];
}
static Color[] getGradient(int index) {
Color[] colors = null;
if (index >= PREDEFINED_GRADIENTS.length) {
colors = getPredefinedGradient(index % PREDEFINED_GRADIENTS.length);
int darkerFactor = index / PREDEFINED_GRADIENTS.length;
while (darkerFactor-- > 0) {
colors[0] = colors[0].darker();
colors[1] = colors[1].darker();
}
} else {
colors = getPredefinedGradient(index);
}
return colors;
}
}