/*
GeoGebra - Dynamic Mathematics for Everyone
http://www.geogebra.org
This file is part of GeoGebra.
This program 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.
*/
package org.geogebra.common.kernel.advanced;
import org.geogebra.common.kernel.CircularDefinitionException;
import org.geogebra.common.kernel.Construction;
import org.geogebra.common.kernel.algos.AlgoElement;
import org.geogebra.common.kernel.commands.Commands;
import org.geogebra.common.kernel.geos.GeoElement;
import org.geogebra.common.kernel.geos.GeoText;
import org.geogebra.common.kernel.kernelND.GeoPointND;
/**
* Algorithm for vertical text
*
* @author Michael
*/
public class AlgoVerticalText extends AlgoElement {
private GeoText text; // output
private GeoText args; // input
private GeoPointND startPoint, startPointCopy; // optional input
private StringBuilder sb = new StringBuilder();
/**
* Creates new algo for vertical text
*
* @param cons
* construction
* @param label
* label for output
* @param args
* input text
*/
public AlgoVerticalText(Construction cons, String label, GeoText args) {
this(cons, args, null);
text.setLabel(label);
}
/**
* Creates new unlabeled algo for vertical text
*
* @param cons
* construction
* @param args
* input text
*/
public AlgoVerticalText(Construction cons, GeoText args) {
this(cons, args, null);
}
/**
* Creates new algo for vertical text, with fixed position point
*
* @param cons
* construction
* @param label
* label for output
* @param args
* input text
*/
public AlgoVerticalText(Construction cons, String label, GeoText args,
GeoPointND p) {
this(cons, args, p);
text.setLabel(label);
}
/**
* Creates new unlabeled algo for vertical text, with fixed position point
*
* @param cons
* construction
* @param args
* input text
*/
public AlgoVerticalText(Construction cons, GeoText args, GeoPointND p) {
super(cons);
this.args = args;
this.startPoint = p;
text = new GeoText(cons);
text.setIsTextCommand(true); // stop editing as text
// set startpoint
if (startPoint != null) {
startPointCopy = (GeoPointND) startPoint.copyInternal(cons);
try {
text.setStartPoint(startPointCopy);
} catch (CircularDefinitionException e) {
e.printStackTrace();
}
text.setAlwaysFixed(true); // disable dragging if p != null
}
setInputOutput();
compute();
}
@Override
public Commands getClassName() {
return Commands.VerticalText;
}
@Override
protected void setInputOutput() {
input = new GeoElement[1];
input[0] = args;
args.addTextDescendant(text);
if (startPoint == null) {
input = new GeoElement[1];
input[0] = args;
} else {
input = new GeoElement[2];
input[0] = args;
input[1] = startPoint.toGeoElement();
}
super.setOutputLength(1);
super.setOutput(0, text);
setDependencies(); // done by AlgoElement
}
/**
* @return resulting text
*/
public GeoText getResult() {
return text;
}
@Override
public final void compute() {
if (!args.isDefined()
|| (startPoint != null && !startPoint.isDefined())) {
text.setTextString("");
return;
}
sb.setLength(0);
AlgoRotateText.appendRotatedText(sb, args, 90);
text.setTextString(sb.toString());
text.setLaTeX(true, false);
// update startpoint position of text
if (startPointCopy != null) {
startPointCopy.setCoords(startPoint.getCoordsInD3(), false);
}
}
@Override
public boolean isLaTeXTextCommand() {
return true;
}
}