plantuml/src/net/sourceforge/plantuml/svek/RoundedSouth.java

89 lines
2.8 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.svek;
import net.sourceforge.plantuml.graphic.UDrawable;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.UPath;
import net.sourceforge.plantuml.ugraphic.URectangle;
import net.sourceforge.plantuml.ugraphic.UShape;
import net.sourceforge.plantuml.ugraphic.UStroke;
import net.sourceforge.plantuml.ugraphic.color.HColor;
import net.sourceforge.plantuml.ugraphic.color.HColorUtils;
public final class RoundedSouth implements UDrawable {
private final double width;
private final double height;
private final HColor backColor;
private final double rounded;
public RoundedSouth(double width, double height, HColor backColor, double rounded) {
if (width == 0)
throw new IllegalArgumentException();
if (height == 0)
throw new IllegalArgumentException();
this.width = width;
this.height = height;
this.rounded = rounded;
this.backColor = backColor;
}
public void drawU(UGraphic ug) {
if (HColorUtils.isTransparent(backColor))
return;
final UShape header;
if (rounded == 0) {
header = new URectangle(width, height);
} else {
final UPath path = new UPath();
path.moveTo(0, 0);
path.lineTo(width, 0);
path.lineTo(width, height - rounded / 2);
path.arcTo(rounded / 2, rounded / 2, 0, 0, 1, width - rounded / 2, height);
path.lineTo(rounded / 2, height);
path.arcTo(rounded / 2, rounded / 2, 0, 0, 1, 0, height - rounded / 2);
path.lineTo(0, 0);
path.closePath();
header = path;
}
ug.apply(new UStroke()).apply(backColor).apply(backColor.bg()).draw(header);
}
}