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PlantUML is a component that allows to quickly write :
* sequence diagram,
* use case diagram,
* class diagram,
* activity diagram,
* component diagram,
* state diagram
* object diagram
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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2017, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.png;
import java.awt.Font;
import java.awt.geom.Dimension2D;
import net.sourceforge.plantuml.SpriteContainerEmpty;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.FontConfiguration;
import net.sourceforge.plantuml.graphic.HorizontalAlignment;
import net.sourceforge.plantuml.graphic.HtmlColor;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.ugraphic.UFont;
public class PngTitler {
private final HtmlColor textColor;
private final HtmlColor hyperlinkColor;
private final Display text;
private final int fontSize;
private final String fontFamily;
private final HorizontalAlignment horizontalAlignment;
private final boolean useUnderlineForHyperlink;
public PngTitler(HtmlColor textColor, Display text, int fontSize, String fontFamily,
HorizontalAlignment horizontalAlignment, HtmlColor hyperlinkColor, boolean useUnderlineForHyperlink) {
this.textColor = textColor;
this.text = text;
this.fontSize = fontSize;
this.fontFamily = fontFamily;
this.horizontalAlignment = horizontalAlignment;
this.hyperlinkColor = hyperlinkColor;
this.useUnderlineForHyperlink = useUnderlineForHyperlink;
}
public Dimension2D getTextDimension(StringBounder stringBounder) {
final TextBlock textBloc = getTextBlock();
if (textBloc == null) {
return null;
}
return textBloc.calculateDimension(stringBounder);
}
public TextBlock getTextBlock() {
if (Display.isNull(text) || text.size() == 0) {
return null;
}
final UFont normalFont = new UFont(fontFamily, Font.PLAIN, fontSize);
return text.create(new FontConfiguration(normalFont, textColor, hyperlinkColor, useUnderlineForHyperlink),
horizontalAlignment, new SpriteContainerEmpty());
}
private double getOffsetX(double imWidth, StringBounder stringBounder) {
final TextBlock textBloc = getTextBlock();
if (textBloc == null) {
return 0;
}
final Dimension2D dimText = textBloc.calculateDimension(stringBounder);
if (imWidth >= dimText.getWidth()) {
return 0;
}
return (dimText.getWidth() - imWidth) / 2;
}
private double getOffsetY(StringBounder stringBounder) {
final TextBlock textBloc = getTextBlock();
if (textBloc == null) {
return 0;
}
final Dimension2D dimText = textBloc.calculateDimension(stringBounder);
final double height = dimText.getHeight();
return height;
}
}