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plantuml/src/net/sourceforge/plantuml/salt/element/ElementDroplist.java
2022-08-19 18:34:21 +02:00

122 lines
4.2 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2023, 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.salt.element;
import net.sourceforge.plantuml.awt.geom.Dimension2D;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import net.sourceforge.plantuml.Dimension2DDouble;
import net.sourceforge.plantuml.ISkinSimple;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.HorizontalAlignment;
import net.sourceforge.plantuml.graphic.StringBounder;
import net.sourceforge.plantuml.graphic.TextBlock;
import net.sourceforge.plantuml.ugraphic.UFont;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UPolygon;
import net.sourceforge.plantuml.ugraphic.URectangle;
import net.sourceforge.plantuml.ugraphic.UTranslate;
import net.sourceforge.plantuml.ugraphic.color.HColors;
public class ElementDroplist extends AbstractElementText implements Element {
private final int box = 12;
private final TextBlock openDrop;
public ElementDroplist(String text, UFont font, ISkinSimple spriteContainer) {
super(extract(text), font, true, spriteContainer);
final StringTokenizer st = new StringTokenizer(text, "^");
final List<String> drop = new ArrayList<>();
while (st.hasMoreTokens()) {
drop.add(st.nextToken());
}
if (drop.size() > 0) {
drop.remove(0);
}
if (drop.size() == 0) {
this.openDrop = null;
} else {
this.openDrop = Display.create(drop).create(getConfig(), HorizontalAlignment.LEFT, spriteContainer);
}
}
private static String extract(String text) {
final int idx = text.indexOf('^');
if (idx == -1) {
return text;
}
return text.substring(0, idx);
}
public Dimension2D getPreferredDimension(StringBounder stringBounder, double x, double y) {
final Dimension2D dim = getTextDimensionAt(stringBounder, x + 2);
return Dimension2DDouble.delta(dim, 4 + box, 4);
}
public void drawU(UGraphic ug, int zIndex, Dimension2D dimToUse) {
final Dimension2D dim = getPreferredDimension(ug.getStringBounder(), 0, 0);
ug = ug.apply(getBlack());
if (zIndex == 0) {
ug.apply(getColorEE().bg())
.draw(new URectangle(dim.getWidth() - 1, dim.getHeight() - 1));
drawText(ug, 2, 2);
final double xline = dim.getWidth() - box;
ug.apply(UTranslate.dx(xline)).draw(ULine.vline(dim.getHeight() - 1));
final UPolygon poly = new UPolygon();
poly.addPoint(0, 0);
poly.addPoint(box - 6, 0);
final Dimension2D dimText = getPureTextDimension(ug.getStringBounder());
poly.addPoint((box - 6) / 2, dimText.getHeight() - 8);
ug.apply(HColors.changeBack(ug)).apply(new UTranslate(xline + 3, 6)).draw(poly);
}
if (openDrop != null) {
final Dimension2D dimOpen = Dimension2DDouble.atLeast(openDrop.calculateDimension(ug.getStringBounder()),
dim.getWidth() - 1, 0);
ug = ug.apply(UTranslate.dy(dim.getHeight() - 1));
ug.apply(getColorEE().bg())
.draw(new URectangle(dimOpen.getWidth() - 1, dimOpen.getHeight() - 1));
openDrop.drawU(ug);
}
}
}