0N/A/*
2362N/A * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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0N/A * This code is free software; you can redistribute it and/or modify it
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2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/Apackage com.sun.java.swing.plaf.gtk;
0N/A
0N/Aimport javax.swing.plaf.synth.ColorType;
0N/Aimport java.awt.Color;
0N/Aimport javax.swing.plaf.ColorUIResource;
0N/A
0N/A/**
0N/A * @author Scott Violet
0N/A */
0N/Apublic class GTKColorType extends ColorType {
0N/A // GTK allows you to specify the foreground and background in a
0N/A // gtkrc, the rest (dark, mid, light) are calculated from these
0N/A // values.
0N/A public static final ColorType LIGHT = new GTKColorType("Light");
0N/A public static final ColorType DARK = new GTKColorType("Dark");
0N/A public static final ColorType MID = new GTKColorType("Mid");
0N/A public static final ColorType BLACK = new GTKColorType("Black");
0N/A public static final ColorType WHITE = new GTKColorType("White");
0N/A
0N/A public static final int MAX_COUNT;
0N/A
0N/A private static final float[] HLS_COLORS = new float[3];
0N/A private static final Object HLS_COLOR_LOCK = new Object();
0N/A
0N/A static {
0N/A MAX_COUNT = WHITE.getID() + 1;
0N/A }
0N/A
0N/A private static int hlsToRGB(float h, float l, float s) {
0N/A float m2 = (l <= .5f) ? (l * (1 + s)) : (l + s - l * s);
0N/A float m1 = 2.0f * l - m2;
0N/A float r, g, b;
0N/A
0N/A if (s == 0.0) {
0N/A if (h == 0.0) {
0N/A r = g = b = l;
0N/A }
0N/A else {
0N/A r = g = b = 0;
0N/A }
0N/A }
0N/A else {
0N/A r = hlsValue(m1, m2, h + 120);
0N/A g = hlsValue(m1, m2, h);
0N/A b = hlsValue(m1, m2, h - 120);
0N/A }
0N/A return (((int)(r * 255)) << 16) | (((int)(g * 255.0)) << 8) |
0N/A ((int)(b * 255));
0N/A }
0N/A
0N/A private static float hlsValue(float n1, float n2, float h) {
0N/A if (h > 360) {
0N/A h -= 360;
0N/A }
0N/A else if (h < 0) {
0N/A h += 360;
0N/A }
0N/A if (h < 60) {
0N/A return n1 + (n2 - n1) * h / 60.0f;
0N/A }
0N/A else if (h < 180) {
0N/A return n2;
0N/A }
0N/A else if (h < 240) {
0N/A return n1 + (n2 - n1) * (240.0f - h) / 60.0f;
0N/A }
0N/A return n1;
0N/A }
0N/A
0N/A /**
0N/A * Converts from RGB color space to HLS colorspace.
0N/A */
0N/A private static float[] rgbToHLS(int rgb, float[] hls) {
0N/A float r = ((rgb & 0xFF0000) >> 16) / 255.0f;
0N/A float g = ((rgb & 0xFF00) >> 8) / 255.0f;
0N/A float b = (rgb & 0xFF) / 255.0f;
0N/A
0N/A /* calculate lightness */
0N/A float max = Math.max(Math.max(r, g), b);
0N/A float min = Math.min(Math.min(r, g), b);
0N/A float l = (max + min) / 2.0f;
0N/A float s = 0;
0N/A float h = 0;
0N/A
0N/A if (max != min) {
0N/A float delta = max - min;
0N/A s = (l <= .5f) ? (delta / (max + min)) : (delta / (2.0f - max -min));
0N/A if (r == max) {
0N/A h = (g - b) / delta;
0N/A }
0N/A else if (g == max) {
0N/A h = 2.0f + (b - r) / delta;
0N/A }
0N/A else {
0N/A h = 4.0f + (r - g) / delta;
0N/A }
0N/A h *= 60.0f;
0N/A if (h < 0) {
0N/A h += 360.0f;
0N/A }
0N/A }
0N/A if (hls == null) {
0N/A hls = new float[3];
0N/A }
0N/A hls[0] = h;
0N/A hls[1] = l;
0N/A hls[2] = s;
0N/A return hls;
0N/A }
0N/A
0N/A /**
0N/A * Creates and returns a new color derived from the passed in color.
0N/A * The transformation is done in the HLS color space using the specified
0N/A * arguments to scale.
0N/A *
0N/A * @param color Color to alter
0N/A * @param hFactory Amount to scale the hue
0N/A * @param lFactor Amount to scale the lightness
0N/A * @param sFactory Amount to sacle saturation
0N/A * @return newly created color
0N/A */
0N/A static Color adjustColor(Color color, float hFactor, float lFactor,
0N/A float sFactor) {
0N/A float h;
0N/A float l;
0N/A float s;
0N/A
0N/A synchronized(HLS_COLOR_LOCK) {
0N/A float[] hls = rgbToHLS(color.getRGB(), HLS_COLORS);
0N/A h = hls[0];
0N/A l = hls[1];
0N/A s = hls[2];
0N/A }
0N/A h = Math.min(360, hFactor * h);
0N/A l = Math.min(1, lFactor * l);
0N/A s = Math.min(1, sFactor * s);
0N/A return new ColorUIResource(hlsToRGB(h, l, s));
0N/A }
0N/A
0N/A protected GTKColorType(String name) {
0N/A super(name);
0N/A }
0N/A}