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/* ========================================================================
* 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.jungle;
import java.util.List;
import net.sourceforge.plantuml.cucadiagram.Display;
import net.sourceforge.plantuml.graphic.HtmlColorUtils;
import net.sourceforge.plantuml.graphic.UDrawable;
import net.sourceforge.plantuml.ugraphic.UChangeColor;
import net.sourceforge.plantuml.ugraphic.UGraphic;
import net.sourceforge.plantuml.ugraphic.ULine;
import net.sourceforge.plantuml.ugraphic.UTranslate;
public class Needle implements UDrawable {
private final double length;
private final Display display;
private final double degreePosition;
private final double degreeOperture;
private Needle(Display display, double length, double degreePosition, double degreeOperture) {
this.display = display;
this.degreePosition = degreePosition;
this.degreeOperture = degreeOperture;
this.length = length;
}
public void drawU(UGraphic ug) {
GTileNode.getTextBlock(display);
ug.draw(getLine());
ug = ug.apply(getTranslate(length));
GTileNode.getTextBlock(display).drawU(ug);
}
private ULine getLine() {
final UTranslate translate = getTranslate(length);
return new ULine(translate.getDx(), translate.getDy());
}
public UTranslate getTranslate(double dist) {
final double angle = degreePosition * Math.PI / 180.0;
final double dx = dist * Math.cos(angle);
final double dy = dist * Math.sin(angle);
return new UTranslate(dx, dy);
}
public UDrawable addChildren(final List<GNode> children) {
return new UDrawable() {
public void drawU(UGraphic ug) {
Needle.this.drawU(ug);
if (children.size() == 0) {
return;
}
ug = ug.apply(getTranslate(length / 2));
final UDrawable child1 = getNeedle(children.get(0), length / 2, degreePosition + degreeOperture,
degreeOperture / 2);
child1.drawU(ug);
if (children.size() == 1) {
return;
}
final UDrawable child2 = getNeedle(children.get(1), length / 2, degreePosition - degreeOperture,
degreeOperture / 2);
child2.drawU(ug);
}
};
}
public static UDrawable getNeedle(GNode root, double length, double degree, double degreeOperture) {
final Needle needle0 = new Needle(root.getDisplay(), length, degree, degreeOperture);
final UDrawable n1 = needle0.addChildren(root.getChildren());
return new UDrawable() {
public void drawU(UGraphic ug) {
ug = ug.apply(new UChangeColor(HtmlColorUtils.BLACK));
n1.drawU(ug);
}
};
}
}
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