ColorAtom.java
/* ColorAtom.java
* =========================================================================
* This file is originally part of the JMathTeX Library - http://jmathtex.sourceforge.net
*
* Copyright (C) 2004-2007 Universiteit Gent
* Copyright (C) 2009 DENIZET Calixte
*
* 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.
*
* A copy of the GNU General Public License can be found in the file
* LICENSE.txt provided with the source distribution of this program (see
* the META-INF directory in the source jar). This license can also be
* found on the GNU website at http://www.gnu.org/licenses/gpl.html.
*
* If you did not receive a copy of the GNU General Public License along
* with this program, contact the lead developer, or write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*
* Linking this library statically or dynamically with other modules
* is making a combined work based on this library. Thus, the terms
* and conditions of the GNU General Public License cover the whole
* combination.
*
* As a special exception, the copyright holders of this library give you
* permission to link this library with independent modules to produce
* an executable, regardless of the license terms of these independent
* modules, and to copy and distribute the resulting executable under terms
* of your choice, provided that you also meet, for each linked independent
* module, the terms and conditions of the license of that module.
* An independent module is a module which is not derived from or based
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*/
package org.scilab.forge.jlatexmath;
import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;
/**
* An atom representing the foreground and background color of an other atom.
*/
public class ColorAtom extends Atom implements Row {
public static Map<String,TeXColor> Colors = new HashMap<String,TeXColor>();
// background color
private final TeXColor background;
// foreground color
private final TeXColor color;
// RowAtom for which the colorsettings apply
private final RowAtom elements;
static {
initColors();
}
/**
* Creates a new ColorAtom that sets the given colors for the given atom.
* Null for a color means: no specific color set for this atom.
*
* @param atom the atom for which the given colors have to be set
* @param bg the background color
* @param c the foreground color
*/
public ColorAtom(Atom atom, TeXColor bg, TeXColor c) {
elements = new RowAtom(atom);
background = bg;
color = c;
}
/**
* Creates a ColorAtom that overrides the colors of the given ColorAtom if the given
* colors are not null. If they're null, the old values are used.
*
* @param bg the background color
* @param c the foreground color
* @param old the ColorAtom for which the colorsettings should be overriden with the
* given colors.
*/
public ColorAtom(TeXColor bg, TeXColor c, ColorAtom old) {
elements = new RowAtom(old.elements);
background = (bg == null ? old.background : bg);
color = (c == null ? old.color : c);
}
public Box createBox(TeXEnvironment env) {
env.isColored = true;
TeXEnvironment copy = env.copy();
if (background != null)
copy.setBackground(background);
if (color != null)
copy.setColor(color);
return elements.createBox(copy);
}
public int getLeftType() {
return elements.getLeftType();
}
public int getRightType() {
return elements.getRightType();
}
public void setPreviousAtom(Dummy prev) {
elements.setPreviousAtom(prev);
}
public static TeXColor getColor(String s) {
if (s != null) {
s = s.trim();
if (s.length() >= 1) {
if (s.charAt(0) == '#') {
return TeXColor.decode(s);
} else if (s.indexOf(',') != -1 || s.indexOf(';') != -1) {
StringTokenizer toks = new StringTokenizer(s, ";,");
int n = toks.countTokens();
if (n == 3) {
// RGB model
try {
String R = toks.nextToken().trim();
String G = toks.nextToken().trim();
String B = toks.nextToken().trim();
float r = Float.parseFloat(R);
float g = Float.parseFloat(G);
float b = Float.parseFloat(B);
if (r == (int) r && g == (int) g && b == (int) b && R.indexOf('.') == -1 && G.indexOf('.') == -1 && B.indexOf('.') == -1) {
int ir = (int) Math.min(255, Math.max(0, r));
int ig = (int) Math.min(255, Math.max(0, g));
int ib = (int) Math.min(255, Math.max(0, b));
return new TeXColor(ir, ig, ib);
} else {
r = (float) Math.min(1, Math.max(0, r));
g = (float) Math.min(1, Math.max(0, g));
b = (float) Math.min(1, Math.max(0, b));
return new TeXColor(r, g, b);
}
} catch (NumberFormatException e) {
return TeXColor.BLACK;
}
} else if (n == 4) {
// CMYK model
try {
float c = Float.parseFloat(toks.nextToken().trim());
float m = Float.parseFloat(toks.nextToken().trim());
float y = Float.parseFloat(toks.nextToken().trim());
float k = Float.parseFloat(toks.nextToken().trim());
c = (float) Math.min(1, Math.max(0, c));
m = (float) Math.min(1, Math.max(0, m));
y = (float) Math.min(1, Math.max(0, y));
k = (float) Math.min(1, Math.max(0, k));
return convColor(c, m, y, k);
} catch (NumberFormatException e) {
return TeXColor.BLACK;
}
}
}
TeXColor c = Colors.get(s.toLowerCase());
if (c != null) {
return c;
} else {
if (s.indexOf('.') != -1) {
try {
float g = (float) Math.min(1, Math.max(Float.parseFloat(s), 0));
return new TeXColor(g, g, g);
} catch (NumberFormatException e) { }
}
return TeXColor.decode("#" + s);
}
}
}
return TeXColor.BLACK;
}
private static void initColors() {
Colors.put("black", TeXColor.BLACK);
Colors.put("white", TeXColor.WHITE);
Colors.put("red", TeXColor.RED);
Colors.put("green", TeXColor.GREEN);
Colors.put("blue", TeXColor.BLUE);
Colors.put("cyan", TeXColor.CYAN);
Colors.put("magenta", TeXColor.MAGENTA);
Colors.put("yellow", TeXColor.YELLOW);
Colors.put("greenyellow", convColor(0.15f, 0f, 0.69f, 0f));
Colors.put("goldenrod", convColor(0f, 0.10f, 0.84f, 0f));
Colors.put("dandelion", convColor(0f, 0.29f, 0.84f, 0f));
Colors.put("apricot", convColor(0f, 0.32f, 0.52f, 0f));
Colors.put("peach", convColor(0f, 0.50f, 0.70f, 0f));
Colors.put("melon", convColor(0f, 0.46f, 0.50f, 0f));
Colors.put("yelloworange", convColor(0f, 0.42f, 1f, 0f));
Colors.put("orange", convColor(0f, 0.61f, 0.87f, 0f));
Colors.put("burntorange", convColor(0f, 0.51f, 1f, 0f));
Colors.put("bittersweet", convColor(0f, 0.75f, 1f, 0.24f));
Colors.put("redorange", convColor(0f, 0.77f, 0.87f, 0f));
Colors.put("mahogany", convColor(0f, 0.85f, 0.87f, 0.35f));
Colors.put("maroon", convColor(0f, 0.87f, 0.68f, 0.32f));
Colors.put("brickred", convColor(0f, 0.89f, 0.94f, 0.28f));
Colors.put("orangered", convColor(0f, 1f, 0.50f, 0f));
Colors.put("rubinered", convColor(0f, 1f, 0.13f, 0f));
Colors.put("wildstrawberry", convColor(0f, 0.96f, 0.39f, 0f));
Colors.put("salmon", convColor(0f, 0.53f, 0.38f, 0f));
Colors.put("carnationpink", convColor(0f, 0.63f, 0f, 0f));
Colors.put("magenta", convColor(0f, 1f, 0f, 0f));
Colors.put("violetred", convColor(0f, 0.81f, 0f, 0f));
Colors.put("rhodamine", convColor(0f, 0.82f, 0f, 0f));
Colors.put("mulberry", convColor(0.34f, 0.90f, 0f, 0.02f));
Colors.put("redviolet", convColor(0.07f, 0.90f, 0f, 0.34f));
Colors.put("fuchsia", convColor(0.47f, 0.91f, 0f, 0.08f));
Colors.put("lavender", convColor(0f, 0.48f, 0f, 0f));
Colors.put("thistle", convColor(0.12f, 0.59f, 0f, 0f));
Colors.put("orchid", convColor(0.32f, 0.64f, 0f, 0f));
Colors.put("darkorchid", convColor(0.40f, 0.80f, 0.20f, 0f));
Colors.put("purple", convColor(0.45f, 0.86f, 0f, 0f));
Colors.put("plum", convColor(0.50f, 1f, 0f, 0f));
Colors.put("violet", convColor(0.79f, 0.88f, 0f, 0f));
Colors.put("royalpurple", convColor(0.75f, 0.90f, 0f, 0f));
Colors.put("blueviolet", convColor(0.86f, 0.91f, 0f, 0.04f));
Colors.put("periwinkle", convColor(0.57f, 0.55f, 0f, 0f));
Colors.put("cadetblue", convColor(0.62f, 0.57f, 0.23f, 0f));
Colors.put("cornflowerblue", convColor(0.65f, 0.13f, 0f, 0f));
Colors.put("midnightblue", convColor(0.98f, 0.13f, 0f, 0.43f));
Colors.put("navyblue", convColor(0.94f, 0.54f, 0f, 0f));
Colors.put("royalblue", convColor(1f, 0.50f, 0f, 0f));
Colors.put("cerulean", convColor(0.94f, 0.11f, 0f, 0f));
Colors.put("processblue", convColor(0.96f, 0f, 0f, 0f));
Colors.put("skyblue", convColor(0.62f, 0f, 0.12f, 0f));
Colors.put("turquoise", convColor(0.85f, 0f, 0.20f, 0f));
Colors.put("tealblue", convColor(0.86f, 0f, 0.34f, 0.02f));
Colors.put("aquamarine", convColor(0.82f, 0f, 0.30f, 0f));
Colors.put("bluegreen", convColor(0.85f, 0f, 0.33f, 0f));
Colors.put("emerald", convColor(1f, 0f, 0.50f, 0f));
Colors.put("junglegreen", convColor(0.99f, 0f, 0.52f, 0f));
Colors.put("seagreen", convColor(0.69f, 0f, 0.50f, 0f));
Colors.put("forestgreen", convColor(0.91f, 0f, 0.88f, 0.12f));
Colors.put("pinegreen", convColor(0.92f, 0f, 0.59f, 0.25f));
Colors.put("limegreen", convColor(0.50f, 0f, 1f, 0f));
Colors.put("yellowgreen", convColor(0.44f, 0f, 0.74f, 0f));
Colors.put("springgreen", convColor(0.26f, 0f, 0.76f, 0f));
Colors.put("olivegreen", convColor(0.64f, 0f, 0.95f, 0.40f));
Colors.put("rawsienna", convColor(0f, 0.72f, 1f, 0.45f));
Colors.put("sepia", convColor(0f, 0.83f, 1f, 0.70f));
Colors.put("brown", convColor(0f, 0.81f, 1f, 0.60f));
Colors.put("tan", convColor(0.14f, 0.42f, 0.56f, 0f));
Colors.put("gray", convColor(0f, 0f, 0f, 0.50f));
}
private static TeXColor convColor(final float c, final float m, final float y, final float k) {
final float kk = 1f - k;
return new TeXColor(kk * (1f - c), kk * (1f - m), kk * (1f - y));
}
}