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// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
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* Project Info: https://plantuml.com
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* messages are usually generated on welcome or error images and never on
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*/
package net.sourceforge.plantuml.klimt.font;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class UnusedSpace {
// ::remove file when __HAXE__
static class Point {
final private double x;
final private double y;
Point(double x, double y) {
this.x = x;
this.y = y;
}
public double getDistSq(Point other) {
final double dx = this.x - other.x;
final double dy = this.y - other.y;
return dx * dx + dy * dy;
}
}
private static final int HALF_SIZE = 20;
private double meanX2;
private double meanY2;
private final List points = new ArrayList<>();
final private static Map cache = new HashMap();
public static UnusedSpace getUnusedSpace(UFont font, char c) {
final Object key = Arrays.asList(font, c);
UnusedSpace result = cache.get(key);
if (result == null) {
result = new UnusedSpace(font, c);
cache.put(key, result);
}
return result;
}
private UnusedSpace(UFont font, char c) {
final BufferedImage im = new BufferedImage(2 * HALF_SIZE, 2 * HALF_SIZE, BufferedImage.TYPE_INT_RGB);
final Graphics2D g2d = im.createGraphics();
g2d.setFont(font.getUnderlayingFont(UFontContext.G2D));
g2d.drawString("" + c, HALF_SIZE, HALF_SIZE);
int minI = Integer.MAX_VALUE;
int minJ = Integer.MAX_VALUE;
int maxI = Integer.MIN_VALUE;
int maxJ = Integer.MIN_VALUE;
for (int i = 0; i < im.getWidth(); i++) {
for (int j = 0; j < im.getHeight(); j++) {
if (isPoint(im, i, j)) {
if (i < minI) {
minI = i;
}
if (j < minJ) {
minJ = j;
}
if (i > maxI) {
maxI = i;
}
if (j > maxJ) {
maxJ = j;
}
points.add(new Point(i, j));
}
}
}
double min = Double.MAX_VALUE;
for (int i = minI * 4; i <= maxI * 4; i++) {
for (int j = minJ * 4; j < maxJ * 4; j++) {
final Point p = new Point(i / 4.0, j / 4.0);
final double d = biggestDistSqFromPoint(p);
if (d < min) {
min = d;
this.meanX2 = i / 4.0 - HALF_SIZE;
this.meanY2 = j / 4.0 - HALF_SIZE;
}
}
}
// g2d.setColor(Color.RED);
// g2d.draw(new Line2D.Double(meanX2 + HALF_SIZE - 1, meanY2 + HALF_SIZE
// - 1, meanX2 + HALF_SIZE + 1, meanY2
// + HALF_SIZE + 1));
// g2d.draw(new Line2D.Double(meanX2 + HALF_SIZE + 1, meanY2 + HALF_SIZE
// - 1, meanX2 + HALF_SIZE - 1, meanY2
// + HALF_SIZE + 1));
// int cpt = 1;
// try {
// ImageIO.write(im, "png", SecurityUtils.File("c:/img" + cpt + ".png"));
// cpt++;
// } catch (IOException e) {
// Logme.error(e);
// }
}
private double biggestDistSqFromPoint(Point p) {
double result = 0;
for (Point other : points) {
final double d = p.getDistSq(other);
if (d > result) {
result = d;
}
}
return result;
}
private static boolean isPoint(BufferedImage im, int x, int y) {
final int color = im.getRGB(x, y) & 0x00FFFFFF;
if (color == 0) {
return false;
}
return true;
}
public double getCenterX() {
return meanX2;
}
public double getCenterY() {
return meanY2;
}
}
