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diff --git a/src/net/sourceforge/plantuml/ugraphic/SlotFinder.java b/src/net/sourceforge/plantuml/ugraphic/SlotFinder.java
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+++ b/src/net/sourceforge/plantuml/ugraphic/SlotFinder.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 net.sourceforge.plantuml.Url;
+import net.sourceforge.plantuml.graphic.StringBounder;
+
+public class SlotFinder implements UGraphic {
+	
+	public boolean isSpecialTxt() {
+		return false;
+	}
+
+	public UGraphic apply(UChange change) {
+		if (change instanceof UTranslate) {
+			return new SlotFinder(stringBounder, yslot, translate.compose((UTranslate) change));
+		} else if (change instanceof UStroke) {
+			return new SlotFinder(this);
+		} else if (change instanceof UChangeBackColor) {
+			return new SlotFinder(this);
+		} else if (change instanceof UChangeColor) {
+			return new SlotFinder(this);
+		}
+		throw new UnsupportedOperationException();
+	}
+
+	private final SlotSet yslot;
+	private final StringBounder stringBounder;
+	private final UTranslate translate;
+
+	public SlotFinder(StringBounder stringBounder) {
+		this(stringBounder, new SlotSet(), new UTranslate());
+	}
+
+	private SlotFinder(StringBounder stringBounder, SlotSet yslot, UTranslate translate) {
+		this.stringBounder = stringBounder;
+		this.yslot = yslot;
+		this.translate = translate;
+	}
+
+	private SlotFinder(SlotFinder other) {
+		this(other.stringBounder, other.yslot, other.translate);
+	}
+
+	public StringBounder getStringBounder() {
+		return stringBounder;
+	}
+
+	public UParam getParam() {
+		return new UParamNull();
+	}
+
+	public void draw(UShape shape) {
+		final double x = translate.getDx();
+		final double y = translate.getDy();
+		if (shape instanceof URectangle) {
+			drawRectangle(x, y, (URectangle) shape);
+		} else if (shape instanceof UPolygon) {
+			drawPolygon(x, y, (UPolygon) shape);
+		} else if (shape instanceof UEllipse) {
+			drawEllipse(x, y, (UEllipse) shape);
+		} else if (shape instanceof UText) {
+			drawText(x, y, (UText) shape);
+		} else if (shape instanceof UEmpty) {
+			drawEmpty(x, y, (UEmpty) shape);
+		}
+	}
+
+	private void drawEmpty(double x, double y, UEmpty shape) {
+		yslot.addSlot(y, y + shape.getHeight());
+	}
+
+	private void drawText(double x, double y, UText shape) {
+		final TextLimitFinder finder = new TextLimitFinder(stringBounder, false);
+		finder.apply(new UTranslate(x, y)).draw(shape);
+		yslot.addSlot(finder.getMinY(), finder.getMaxY());
+	}
+
+	private void drawEllipse(double x, double y, UEllipse shape) {
+		yslot.addSlot(y, y + shape.getHeight());
+	}
+
+	private void drawPolygon(double x, double y, UPolygon shape) {
+		yslot.addSlot(y + shape.getMinY(), y + shape.getMaxY());
+	}
+
+	private void drawRectangle(double x, double y, URectangle shape) {
+		yslot.addSlot(y, y + shape.getHeight());
+	}
+
+	public ColorMapper getColorMapper() {
+		return new ColorMapperIdentity();
+	}
+
+	public void startUrl(Url url) {
+	}
+
+	public void closeAction() {
+	}
+
+	public SlotSet getYSlotSet() {
+		return yslot;
+	}
+
+	public void flushUg() {
+	}
+
+}