mirror of https://github.com/octoleo/plantuml.git
108 lines
3.4 KiB
Java
108 lines
3.4 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.ebnf;
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import net.sourceforge.plantuml.awt.geom.XDimension2D;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.URectangle;
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import net.sourceforge.plantuml.ugraphic.UTranslate;
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import net.sourceforge.plantuml.ugraphic.color.HColors;
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public class ETileOptional extends ETile {
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private final double deltax;
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private final double deltay = 16;
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private final ETile orig;
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private final boolean specialForAlternate;
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public ETileOptional(ETile orig) {
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this.orig = orig;
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this.specialForAlternate = orig instanceof ETileAlternation;
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this.deltax = this.specialForAlternate ? 0 : 15;
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}
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@Override
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public double getH1(StringBounder stringBounder) {
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return deltay + orig.getH1(stringBounder);
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}
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@Override
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public double getH2(StringBounder stringBounder) {
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return orig.getH2(stringBounder);
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}
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@Override
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public double getWidth(StringBounder stringBounder) {
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return orig.getWidth(stringBounder) + 2 * deltax;
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}
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@Override
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public void drawU(UGraphic ug) {
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final XDimension2D fullDim = calculateDimension(ug.getStringBounder());
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if (TRACE)
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ug.apply(HColors.BLUE).draw(new URectangle(fullDim));
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final double linePos = getH1(ug.getStringBounder());
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final double posA = specialForAlternate ? 12 : 8;
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final double corner = specialForAlternate ? 12 : 8;
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final double posB = fullDim.getWidth() - posA;
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CornerCurved.createSE(corner).drawU(ug.apply(new UTranslate(posA, linePos)));
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drawVline(ug, posA, corner + 5, linePos - corner);
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CornerCurved.createNW(corner).drawU(ug.apply(new UTranslate(posA, 5)));
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drawHlineDirected(ug, 5, posA + corner, posB - corner, 0.4);
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CornerCurved.createSW(corner).drawU(ug.apply(new UTranslate(posB, linePos)));
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drawVline(ug, posB, corner + 5, linePos - corner);
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CornerCurved.createNE(corner).drawU(ug.apply(new UTranslate(posB, 5)));
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drawHline(ug, linePos, 0, deltax);
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drawHline(ug, linePos, fullDim.getWidth() - deltax, fullDim.getWidth());
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orig.drawU(ug.apply(new UTranslate(deltax, deltay)));
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}
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@Override
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public void push(ETile tile) {
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throw new UnsupportedOperationException();
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}
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}
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