mirror of https://github.com/octoleo/plantuml.git
120 lines
3.3 KiB
Java
120 lines
3.3 KiB
Java
/* ========================================================================
|
|
* PlantUML : a free UML diagram generator
|
|
* ========================================================================
|
|
*
|
|
* (C) Copyright 2009-2020, 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.ebnf;
|
|
|
|
import net.sourceforge.plantuml.graphic.UDrawable;
|
|
import net.sourceforge.plantuml.ugraphic.CopyForegroundColorToBackgroundColor;
|
|
import net.sourceforge.plantuml.ugraphic.UGraphic;
|
|
import net.sourceforge.plantuml.ugraphic.UPath;
|
|
import net.sourceforge.plantuml.ugraphic.UTranslate;
|
|
|
|
enum CornerType {
|
|
NW, NE, SE, SW;
|
|
}
|
|
|
|
public class CornerCurved implements UDrawable {
|
|
|
|
private final double delta;
|
|
private final CornerType type;
|
|
private final boolean withArrow;
|
|
|
|
private CornerCurved(CornerType type, double delta, boolean withArrow) {
|
|
this.delta = delta;
|
|
this.type = type;
|
|
this.withArrow = withArrow;
|
|
if (delta <= 0)
|
|
throw new IllegalArgumentException();
|
|
}
|
|
|
|
public static UDrawable createSW(double delta) {
|
|
return new CornerCurved(CornerType.SW, delta, false);
|
|
}
|
|
|
|
public static UDrawable createSE(double delta) {
|
|
return new CornerCurved(CornerType.SE, delta, false);
|
|
}
|
|
|
|
public static UDrawable createNE(double delta) {
|
|
return new CornerCurved(CornerType.NE, delta, false);
|
|
}
|
|
|
|
public static UDrawable createNE_arrow(double delta) {
|
|
return new CornerCurved(CornerType.NE, delta, true);
|
|
}
|
|
|
|
public static UDrawable createNW(double delta) {
|
|
return new CornerCurved(CornerType.NW, delta, false);
|
|
}
|
|
|
|
public static UDrawable createNW_arrow(double delta) {
|
|
return new CornerCurved(CornerType.NW, delta, true);
|
|
}
|
|
|
|
@Override
|
|
public void drawU(UGraphic ug) {
|
|
final UPath path = new UPath();
|
|
final double a = delta / 4;
|
|
|
|
switch (type) {
|
|
case SW:
|
|
path.moveTo(0, -delta);
|
|
path.cubicTo(0, -a, a, 0, delta, 0);
|
|
break;
|
|
case SE:
|
|
path.moveTo(0, -delta);
|
|
path.cubicTo(0, -a, -a, 0, -delta, 0);
|
|
break;
|
|
case NE:
|
|
path.moveTo(-delta, 0);
|
|
path.cubicTo(-a, 0, 0, a, 0, delta);
|
|
if (withArrow)
|
|
ug.apply(new CopyForegroundColorToBackgroundColor()).apply(UTranslate.dy(delta - 5))
|
|
.draw(ETile.getArrowToBottom());
|
|
break;
|
|
case NW:
|
|
path.moveTo(0, delta);
|
|
path.cubicTo(0, a, a, 0, delta, 0);
|
|
if (withArrow)
|
|
ug.apply(new CopyForegroundColorToBackgroundColor()).apply(UTranslate.dy(delta))
|
|
.draw(ETile.getArrowToTop());
|
|
break;
|
|
}
|
|
|
|
ug.draw(path);
|
|
}
|
|
|
|
}
|