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plantuml/src/net/sourceforge/plantuml/wbs/Fork.java
2023-02-22 19:43:48 +01:00

125 lines
4.0 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://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.wbs;
import java.util.ArrayList;
import java.util.List;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.TextBlock;
import net.sourceforge.plantuml.style.ISkinParam;
import net.sourceforge.plantuml.utils.Direction;
class Fork extends WBSTextBlock {
private final TextBlock main;
private final List<ITF> right = new ArrayList<>();
public Fork(ISkinParam skinParam, WElement idea) {
super(idea.withBackColor(skinParam), idea.getStyleBuilder(), idea.getLevel());
if (idea.getLevel() != 0)
throw new IllegalArgumentException();
this.main = buildMain(idea);
for (WElement child : idea.getChildren(Direction.RIGHT))
this.right.add(ITFComposed.build2(skinParam, child));
}
final private double delta1x = 20;
final private double deltay = 40;
public void drawU(final UGraphic ug) {
final StringBounder stringBounder = ug.getStringBounder();
final XDimension2D mainDim = main.calculateDimension(stringBounder);
final double y0 = mainDim.getHeight();
final double y1 = y0 + deltay / 2;
final double y2 = y0 + deltay;
final double mainWidth = mainDim.getWidth();
if (right.size() == 0) {
main.drawU(ug);
drawLine(ug, mainWidth / 2, y0, mainWidth / 2, y1);
return;
}
double x = 0;
final double firstX = right.get(0).getT1(stringBounder).getX();
double lastX = firstX;
for (ITF child : right) {
lastX = x + child.getT1(stringBounder).getX();
drawLine(ug, lastX, y1, lastX, y2);
child.drawU(ug.apply(new UTranslate(x, y2)));
x += child.calculateDimension(stringBounder).getWidth() + delta1x;
}
final double posMain;
if (lastX > firstX) {
drawLine(ug, firstX, y1, lastX, y1);
posMain = firstX + (lastX - firstX - mainWidth) / 2;
} else {
assert lastX == firstX;
final XDimension2D fullDim = calculateDimension(stringBounder);
posMain = (fullDim.getWidth() - mainWidth) / 2;
drawLine(ug, firstX, y1, posMain + mainWidth / 2, y1);
}
main.drawU(ug.apply(UTranslate.dx(posMain)));
drawLine(ug, posMain + mainWidth / 2, y0, posMain + mainWidth / 2, y1);
}
public XDimension2D calculateDimension(StringBounder stringBounder) {
double width = 0;
double height = 0;
for (ITF child : right) {
final XDimension2D childDim = child.calculateDimension(stringBounder);
height = Math.max(height, childDim.getHeight());
width += childDim.getWidth();
}
final XDimension2D mainDim = main.calculateDimension(stringBounder);
height += mainDim.getHeight();
height += deltay;
width = Math.max(width, mainDim.getWidth());
return new XDimension2D(width, height);
}
}