/*
* Open Source Physics software is free software as described near the bottom of this code file.
*
* For additional information and documentation on Open Source Physics please see:
* <http://www.opensourcephysics.org/>
*/
package org.opensourcephysics.display3d.simple3d;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import org.opensourcephysics.controls.XML;
import org.opensourcephysics.controls.XMLControl;
import org.opensourcephysics.display.TextLine;
/**
* <p>Title: ElementText</p>
* <p>Description: A Text using the painter's algorithm</p>
* @author Francisco Esquembre
* @version March 2005
*/
public class ElementText extends Element implements org.opensourcephysics.display3d.core.ElementText {
// Configuration variables
private int justify = JUSTIFICATION_CENTER;
private double angle = 0.0;
// Implementation variables
private double[] coordinates = new double[3]; // The input for all projections
private double[] pixel = new double[3]; // The ouput of all projections
private Object3D[] objects = new Object3D[] {new Object3D(this, 0)};
private AffineTransform transform = new AffineTransform();
private TextLine textLine = new TextLine();
// -------------------------------------
// New configuration methods
// -------------------------------------
/**
* Constructor ElementText
*/
public ElementText() {
super();
}
/**
* Constructor ElementText
* @param text
*/
public ElementText(String text) {
this();
setText(text);
}
public void setText(String text) {
textLine.setText(text);
}
public String getText() {
return textLine.getText();
}
public void setFont(Font font) {
textLine.setFont(font);
}
public Font getFont() {
return textLine.getFont();
}
public void setJustification(int justification) {
this.justify = justification;
switch(justification) {
default :
case JUSTIFICATION_CENTER :
textLine.setJustification(TextLine.CENTER);
break;
case JUSTIFICATION_LEFT :
textLine.setJustification(TextLine.LEFT);
break;
case JUSTIFICATION_RIGHT :
textLine.setJustification(TextLine.RIGHT);
break;
}
}
public int getJustification() {
return this.justify;
}
public void setRotationAngle(double angle) {
this.angle = angle;
}
public double getRotationAngle() {
return this.angle;
}
// -------------------------------------
// Abstract part of Element or Parent methods overwritten
// -------------------------------------
Object3D[] getObjects3D() {
if(!isReallyVisible()) {
return null;
}
if(hasChanged()||needsToProject()) {
projectPoints();
}
return objects;
}
void draw(Graphics2D _g2, int _index) {
// Allow the panel to adjust color according to depth
Color theColor = getDrawingPanel3D().projectColor(getRealStyle().getLineColor(), objects[0].getDistance());
drawIt(_g2, theColor);
}
void drawQuickly(Graphics2D _g2) {
if(!isReallyVisible()) {
return;
}
if(hasChanged()||needsToProject()) {
projectPoints();
}
drawIt(_g2, getRealStyle().getLineColor());
}
void getExtrema(double[] min, double[] max) {
min[0] = 0;
max[0] = 0;
min[1] = 0;
max[1] = 0;
min[2] = 0;
max[2] = 0;
sizeAndToSpaceFrame(min);
sizeAndToSpaceFrame(max);
}
// -------------------------------------
// Interaction
// -------------------------------------
protected InteractionTarget getTargetHit(int x, int y) {
if(!isReallyVisible()) {
return null;
}
if(hasChanged()||needsToProject()) {
projectPoints();
}
if(targetPosition.isEnabled()&&(Math.abs(pixel[0]-x)<SENSIBILITY)&&(Math.abs(pixel[1]-y)<SENSIBILITY)) {
return targetPosition;
}
return null;
}
// -------------------------------------
// Private methods
// -------------------------------------
private void projectPoints() {
coordinates[0] = coordinates[1] = coordinates[2] = 0.0;
sizeAndToSpaceFrame(coordinates);
getDrawingPanel3D().project(coordinates, pixel);
objects[0].setDistance(pixel[2]*getStyle().getDepthFactor());
setElementChanged(false);
setNeedToProject(false);
}
private void drawIt(Graphics2D _g2, Color _color) {
textLine.setColor(_color);
if(angle!=0.0) {
AffineTransform originalTransform = _g2.getTransform();
transform.setTransform(originalTransform);
transform.rotate(angle, pixel[0], pixel[1]);
_g2.setTransform(transform);
textLine.drawText(_g2, (int) pixel[0], (int) pixel[1]);
_g2.setTransform(originalTransform);
} else {
textLine.drawText(_g2, (int) pixel[0], (int) pixel[1]);
}
}
// ----------------------------------------------------
// XML loader
// ----------------------------------------------------
/**
* Returns an XML.ObjectLoader to save and load object data.
* @return the XML.ObjectLoader
*/
public static XML.ObjectLoader getLoader() {
return new Loader();
}
static private class Loader extends org.opensourcephysics.display3d.core.ElementText.Loader {
public Object createObject(XMLControl control) {
return new ElementText();
}
}
}
/*
* Open Source Physics software is free software; you can redistribute
* it and/or modify it under the terms of the GNU General Public License (GPL) as
* published by the Free Software Foundation; either version 2 of the License,
* or(at your option) any later version.
* Code that uses any portion of the code in the org.opensourcephysics package
* or any subpackage (subdirectory) of this package must must also be be released
* under the GNU GPL license.
*
* This software is 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA
* or view the license online at http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2007 The Open Source Physics project
* http://www.opensourcephysics.org
*/