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plantuml/src/net/sourceforge/plantuml/klimt/drawing/TextLimitFinder.java
2023-02-22 19:43:48 +01:00

108 lines
3.5 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://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.klimt.drawing;
import static net.sourceforge.plantuml.utils.ObjectUtils.instanceOfAny;
import net.sourceforge.plantuml.klimt.UBackground;
import net.sourceforge.plantuml.klimt.UChange;
import net.sourceforge.plantuml.klimt.UShape;
import net.sourceforge.plantuml.klimt.UStroke;
import net.sourceforge.plantuml.klimt.UTranslate;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.MinMaxMutable;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
import net.sourceforge.plantuml.klimt.shape.UText;
public class TextLimitFinder extends UGraphicNo {
private final MinMaxMutable minmax;
@Override
public UGraphic apply(UChange change) {
if (!instanceOfAny(change, UBackground.class, HColor.class, UStroke.class, UTranslate.class))
throw new UnsupportedOperationException(change.getClass().toString());
final UTranslate tmp = change instanceof UTranslate ? this.getTranslate().compose((UTranslate) change)
: this.getTranslate();
return new TextLimitFinder(this.getStringBounder(), tmp, this.minmax);
}
public static TextLimitFinder create(StringBounder stringBounder, boolean initToZero) {
return new TextLimitFinder(stringBounder, new UTranslate(), MinMaxMutable.getEmpty(initToZero));
}
private TextLimitFinder(StringBounder stringBounder, UTranslate translate, MinMaxMutable minmax) {
super(stringBounder, translate);
this.minmax = minmax;
}
public void draw(UShape shape) {
if (shape instanceof UText) {
final double x = getTranslate().getDx();
final double y = getTranslate().getDy();
drawText(x, y, (UText) shape);
}
}
private void drawText(double x, double y, UText text) {
final XDimension2D dim = getStringBounder().calculateDimension(text.getFontConfiguration().getFont(),
text.getText());
y -= dim.getHeight() - 1.5;
minmax.addPoint(x, y);
minmax.addPoint(x, y + dim.getHeight());
minmax.addPoint(x + dim.getWidth(), y);
minmax.addPoint(x + dim.getWidth(), y + dim.getHeight());
}
public double getMaxX() {
return minmax.getMaxX();
}
public double getMaxY() {
return minmax.getMaxY();
}
public double getMinX() {
return minmax.getMinX();
}
public double getMinY() {
return minmax.getMinY();
}
}