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package com.jme3.font;
import com.jme3.math.ColorRGBA;
import java.util.LinkedList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Contains the color information tagged in a text string
* Format: \#rgb#
* \#rgba#
* \#rrggbb#
* \#rrggbbaa#
* @author YongHoon
*/
class ColorTags {
private static final Pattern colorPattern = Pattern.compile("\\\\#([0-9a-fA-F]{8})#|\\\\#([0-9a-fA-F]{6})#|" +
"\\\\#([0-9a-fA-F]{4})#|\\\\#([0-9a-fA-F]{3})#");
private LinkedList<Range> colors = new LinkedList<Range>();
private String text;
ColorTags() { }
ColorTags(String seq) {
setText(seq);
}
/**
* @return text without color tags
*/
String getPlainText() {
return text;
}
LinkedList<Range> getTags() {
return colors;
}
void setText(final String charSeq) {
colors.clear();
if (charSeq == null) {
return;
}
Matcher m = colorPattern.matcher(charSeq);
if (m.find()) {
StringBuilder builder = new StringBuilder(charSeq.length()-7);
int startIndex = 0;
do {
String colorStr = null;
for (int i = 1; i <= 4 && colorStr==null; i++) {
colorStr = m.group(i);
}
builder.append(charSeq.subSequence(startIndex, m.start()));
Range range = new Range(builder.length(), colorStr);
startIndex = m.end();
colors.add(range);
} while (m.find());
builder.append(charSeq.subSequence(startIndex, charSeq.length()));
text = builder.toString();
} else {
text = charSeq;
}
}
class Range {
int start;
ColorRGBA color;
Range(int start, String colorStr) {
this.start = start;
this.color = new ColorRGBA();
if (colorStr.length() >= 6) {
color.set(Integer.parseInt(colorStr.subSequence(0,2).toString(), 16) / 255f,
Integer.parseInt(colorStr.subSequence(2,4).toString(), 16) / 255f,
Integer.parseInt(colorStr.subSequence(4,6).toString(), 16) / 255f,
1);
if (colorStr.length() == 8) {
color.a = Integer.parseInt(colorStr.subSequence(6,8).toString(), 16) / 255f;
}
} else {
color.set(Integer.parseInt(Character.toString(colorStr.charAt(0)), 16) / 15f,
Integer.parseInt(Character.toString(colorStr.charAt(1)), 16) / 15f,
Integer.parseInt(Character.toString(colorStr.charAt(2)), 16) / 15f,
1);
if (colorStr.length() == 4) {
color.a = Integer.parseInt(Character.toString(colorStr.charAt(3)), 16) / 15f;
}
}
}
}
}
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