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93 lines
3.3 KiB
Java
93 lines
3.3 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009, Arnaud Roques
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*
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* Project Info: http://plantuml.sourceforge.net
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
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* in the United States and other countries.]
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*
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* Original Author: Arnaud Roques
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*
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* Revision $Revision: 4169 $
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*
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*/
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package net.sourceforge.plantuml.asciiart;
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import java.awt.geom.Dimension2D;
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import java.util.List;
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import net.sourceforge.plantuml.FileFormat;
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import net.sourceforge.plantuml.StringUtils;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.skin.Component;
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import net.sourceforge.plantuml.skin.ComponentType;
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import net.sourceforge.plantuml.skin.Context2D;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.txt.UGraphicTxt;
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public class ComponentTextArrow implements Component {
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private final ComponentType type;
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private final List<? extends CharSequence> stringsToDisplay;
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private final FileFormat fileFormat;
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public ComponentTextArrow(ComponentType type, List<? extends CharSequence> stringsToDisplay, FileFormat fileFormat) {
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this.type = type;
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this.stringsToDisplay = stringsToDisplay;
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this.fileFormat = fileFormat;
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}
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public void drawU(UGraphic ug, Dimension2D dimensionToUse, Context2D context) {
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final UmlCharArea charArea = ((UGraphicTxt) ug).getCharArea();
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final int width = (int) dimensionToUse.getWidth();
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final int height = (int) dimensionToUse.getHeight();
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final int textWidth = StringUtils.getWidth(stringsToDisplay);
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final int yarrow = height - 2;
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charArea.drawHLine(fileFormat == FileFormat.UTXT ? '\u2500' : '-', yarrow, 1, width);
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if (type == ComponentType.DOTTED_ARROW || type == ComponentType.RETURN_DOTTED_ARROW) {
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for (int i = 1; i < width; i += 2) {
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charArea.drawChar(' ', i, yarrow);
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}
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}
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if (type == ComponentType.ARROW || type == ComponentType.DOTTED_ARROW) {
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charArea.drawChar('>', width - 1, yarrow);
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} else if (type == ComponentType.RETURN_ARROW || type == ComponentType.RETURN_DOTTED_ARROW) {
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charArea.drawChar('<', 1, yarrow);
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} else {
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throw new UnsupportedOperationException();
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}
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charArea.drawStringsLR(stringsToDisplay, (width - textWidth) / 2, 0);
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}
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public double getPreferredHeight(StringBounder stringBounder) {
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return StringUtils.getHeight(stringsToDisplay) + 2;
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}
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public double getPreferredWidth(StringBounder stringBounder) {
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return StringUtils.getWidth(stringsToDisplay) + 2;
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}
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}
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