/*
* 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.display.axes;
import java.awt.event.MouseEvent;
import org.opensourcephysics.display.DrawingPanel;
import org.opensourcephysics.display.InteractivePanel;
/**
* Builds a coordinate string from a mouse event for an axis type.
*/
public class CartesianCoordinateStringBuilder extends CoordinateStringBuilder {
/**
* Constructor CartesianCoordinateStringBuilder
*/
public CartesianCoordinateStringBuilder() {
this("x=", " y="); //$NON-NLS-1$ //$NON-NLS-2$
}
/**
* Constructor CartesianCoordinateStringBuilder
* @param xLabel
* @param yLabel
*/
public CartesianCoordinateStringBuilder(String xLabel, String yLabel) {
this.xLabel = xLabel;
this.yLabel = yLabel;
}
public void setCoordinateLabels(String xLabel, String yLabel) {
this.xLabel = xLabel;
this.yLabel = yLabel;
}
/**
* Converts a the pixel coordinates in a mouse event into world coordinates and
* return these coordinates in a string.
*
* @param e the mouse event
* @return the coordinate string
*/
public String getCoordinateString(DrawingPanel panel, MouseEvent e) {
double x = panel.pixToX(e.getPoint().x);
double y = panel.pixToY(e.getPoint().y);
if((panel instanceof InteractivePanel)&&((InteractivePanel) panel).getCurrentDraggable()!=null) {
x = ((InteractivePanel) panel).getCurrentDraggable().getX();
y = ((InteractivePanel) panel).getCurrentDraggable().getY();
}
String msg = ""; //$NON-NLS-1$
if((Math.abs(x)>100)||(Math.abs(x)<0.01)||(Math.abs(y)>100)||(Math.abs(y)<0.01)) {
if(xLabel!=null) {
msg = xLabel+scientificFormat.format((float) x);
}
if(yLabel!=null) {
msg += yLabel+scientificFormat.format((float) y);
}
} else {
if(xLabel!=null) {
msg = xLabel+decimalFormat.format((float) x);
}
if(yLabel!=null) {
msg += yLabel+decimalFormat.format((float) y);
}
}
return msg;
}
}
/*
* 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
*/