1 files changed, 104 insertions, 0 deletions
diff --git a/src/net/sourceforge/plantuml/ugraphic/MinMaxMutable.java b/src/net/sourceforge/plantuml/ugraphic/MinMaxMutable.java
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+++ b/src/net/sourceforge/plantuml/ugraphic/MinMaxMutable.java
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+/* ========================================================================
+ * PlantUML : a free UML diagram generator
+ * ========================================================================
+ *
+ * (C) Copyright 2009-2014, Arnaud Roques
+ *
+ * Project Info:  http://plantuml.sourceforge.net
+ * 
+ * This file is part of PlantUML.
+ *
+ * Licensed under The MIT License (Massachusetts Institute of Technology License)
+ * 
+ * See http://opensource.org/licenses/MIT
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+ * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ *
+ * Original Author:  Arnaud Roques
+ */
+package net.sourceforge.plantuml.ugraphic;
+
+import java.awt.geom.Dimension2D;
+
+import net.sourceforge.plantuml.Dimension2DDouble;
+
+public class MinMaxMutable {
+
+	private double maxX;
+	private double maxY;
+	private double minX;
+	private double minY;
+
+	public static MinMaxMutable getEmpty(boolean initToZero) {
+		if (initToZero) {
+			return new MinMaxMutable(0, 0, 0, 0);
+		}
+		return new MinMaxMutable(Double.MAX_VALUE, Double.MAX_VALUE, -Double.MAX_VALUE, -Double.MAX_VALUE);
+	}
+
+	public boolean isInfinity() {
+		return minX == Double.MAX_VALUE;
+	}
+
+	@Override
+	public String toString() {
+		return "X=" + minX + " " + maxX + " Y=" + minY + " " + maxY;
+	}
+
+	private MinMaxMutable(double minX, double minY, double maxX, double maxY) {
+		this.minX = minX;
+		this.minY = minY;
+		this.maxX = maxX;
+		this.maxY = maxY;
+	}
+
+	public void addPoint(double x, double y) {
+		this.maxX = Math.max(x, maxX);
+		this.maxY = Math.max(y, maxY);
+		this.minX = Math.min(x, minX);
+		this.minY = Math.min(y, minY);
+	}
+
+	public static MinMaxMutable fromMax(double maxX, double maxY) {
+		final MinMaxMutable result = MinMaxMutable.getEmpty(true);
+		result.addPoint(maxX, maxY);
+		return result;
+	}
+
+	public final double getMaxX() {
+		return maxX;
+	}
+
+	public final double getMaxY() {
+		return maxY;
+	}
+
+	public final double getMinX() {
+		return minX;
+	}
+
+	public final double getMinY() {
+		return minY;
+	}
+
+	public Dimension2D getDimension() {
+		return new Dimension2DDouble(maxX - minX, maxY - minY);
+	}
+
+}