mirror of
https://github.com/octoleo/plantuml.git
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e23d7e56fc
https://github.com/plantuml/plantuml/issues/1367 https://github.com/plantuml/plantuml/issues/1389
104 lines
2.8 KiB
Java
104 lines
2.8 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*/
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package net.sourceforge.plantuml.klimt.color;
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import java.awt.Color;
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import java.util.Objects;
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public class HColorGradient extends HColor {
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private final HColor color1;
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private final HColor color2;
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private final char policy;
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HColorGradient(HColor color1arg, HColor color2arg, char policy) {
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if (color1arg instanceof HColorGradient)
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color1arg = ((HColorGradient) color1arg).color1;
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if (color2arg instanceof HColorGradient)
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color2arg = ((HColorGradient) color2arg).color2;
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this.color1 = Objects.requireNonNull(color1arg);
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this.color2 = Objects.requireNonNull(color2arg);
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this.policy = policy;
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}
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public final HColor getColor1() {
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return color1;
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}
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public final HColor getColor2() {
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return color2;
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}
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public final Color getColor(ColorMapper mapper, double coeff) {
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if (coeff > 1 || coeff < 0)
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throw new IllegalArgumentException("c=" + coeff);
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final Color c1 = color1.toColor(mapper);
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final Color c2 = color2.toColor(mapper);
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final int diffRed = c2.getRed() - c1.getRed();
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final int diffGreen = c2.getGreen() - c1.getGreen();
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final int diffBlue = c2.getBlue() - c1.getBlue();
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final int vRed = (int) (coeff * diffRed);
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final int vGreen = (int) (coeff * diffGreen);
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final int vBlue = (int) (coeff * diffBlue);
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final int red = c1.getRed() + vRed;
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final int green = c1.getGreen() + vGreen;
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final int blue = c1.getBlue() + vBlue;
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return new Color(red, green, blue);
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}
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public final char getPolicy() {
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return policy;
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}
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@Override
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public Color toColor(ColorMapper mapper) {
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return color1.toColor(mapper);
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}
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@Override
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public HColor opposite() {
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return color1.opposite();
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}
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}
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