/**
* Sets the mass. Overrides PointMass method.
*
* @param mass the mass
*/
public void setMass(double mass) {
super.setMass(mass);
mass = super.getMass();
massField.setValue(mass);
// refresh mass parameter in paramPanel if changed
Parameter massParam = (Parameter) getParamEditor().getObject("m"); // $NON-NLS-1$
if (massParam != null && massParam.getValue() != mass) {
functionPanel.getParamEditor().setExpression("m", String.valueOf(mass), false); // $NON-NLS-1$
refreshSteps();
}
}
/** Refreshes initial time parameter for this model. */
protected void refreshInitialTime() {
if (trackerPanel == null) return;
double t0 = trackerPanel.getPlayer().getFrameTime(getStartFrame()) / 1000;
String t = timeFormat.format(t0);
Parameter param = (Parameter) getInitEditor().getObject("t"); // $NON-NLS-1$
if (param.getValue() != t0) {
boolean prev = refreshing;
refreshing = true;
getInitEditor().setExpression("t", t, false); // $NON-NLS-1$
refreshing = prev;
}
}
/** This adds the mass and initial time parameters to the function panel. */
protected void createMassAndTimeParameters() {
Parameter param = new Parameter("m", String.valueOf(getMass())); // $NON-NLS-1$
param.setNameEditable(false);
param.setDescription(
TrackerRes.getString("ParticleModel.Parameter.Mass.Description")); // $NON-NLS-1$
getParamEditor().addObject(param, false);
param = new Parameter("t", "0"); // $NON-NLS-1$ //$NON-NLS-2$
param.setNameEditable(false);
param.setDescription(
TrackerRes.getString("ParticleModel.Parameter.InitialTime.Description")); // $NON-NLS-1$
functionPanel.getInitEditor().addObject(param, false);
getParamEditor()
.addPropertyChangeListener(
new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent e) {
if ("m".equals(e.getOldValue())) { // $NON-NLS-1$
Parameter param = (Parameter) getParamEditor().getObject("m"); // $NON-NLS-1$
if (ParticleModel.super.getMass() != param.getValue()) {
setMass(param.getValue());
}
}
}
});
getInitEditor()
.addPropertyChangeListener(
new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent e) {
if (refreshing) return;
if ("t".equals(e.getOldValue()) && trackerPanel != null) { // $NON-NLS-1$
Parameter param = (Parameter) getInitEditor().getObject("t"); // $NON-NLS-1$
VideoClip clip = trackerPanel.getPlayer().getVideoClip();
double timeOffset = param.getValue() * 1000 - clip.getStartTime();
double dt = trackerPanel.getPlayer().getMeanStepDuration();
int n = clip.getStartFrameNumber();
boolean mustRound = timeOffset % dt > 0;
n += clip.getStepSize() * (int) Math.round(timeOffset / dt);
setStartFrame(n);
if (getStartFrame() != n || mustRound) Toolkit.getDefaultToolkit().beep();
}
}
});
}
/**
* Loads an object with data from an XMLControl.
*
* @param control the control
* @param obj the object
* @return the loaded object
*/
public Object loadObject(XMLControl control, Object obj) {
// load track data
XML.getLoader(TTrack.class).loadObject(control, obj);
ParticleModel p = (ParticleModel) obj;
p.mass = control.getDouble("mass"); // $NON-NLS-1$
p.inspectorX = control.getInt("inspector_x"); // $NON-NLS-1$
p.inspectorY = control.getInt("inspector_y"); // $NON-NLS-1$
p.inspectorH = control.getInt("inspector_h"); // $NON-NLS-1$
p.showInspector = control.getBoolean("inspector_visible"); // $NON-NLS-1$
Parameter[] params = (Parameter[]) control.getObject("user_parameters"); // $NON-NLS-1$
p.getParamEditor().setParameters(params);
params = (Parameter[]) control.getObject("initial_values"); // $NON-NLS-1$
// remove trailing "0" from initial condition parameters
for (int i = 0; i < params.length; i++) {
Parameter param = params[i];
String name = param.getName();
int n = name.lastIndexOf("0"); // $NON-NLS-1$
if (n > -1) {
// replace parameter with new one
name = name.substring(0, n);
Parameter newParam = new Parameter(name, param.getExpression());
newParam.setDescription(param.getDescription());
newParam.setNameEditable(false);
params[i] = newParam;
}
}
p.getInitEditor().setParameters(params);
UserFunction[] functions =
(UserFunction[]) control.getObject("main_functions"); // $NON-NLS-1$
p.getFunctionEditor().setMainFunctions(functions);
functions = (UserFunction[]) control.getObject("support_functions"); // $NON-NLS-1$
if (functions != null) {
for (int i = 0; i < functions.length; i++) {
p.getFunctionEditor().addObject(functions[i], false);
}
}
p.functionPanel.refreshFunctions();
int n = control.getInt("start_frame"); // $NON-NLS-1$
if (n != Integer.MIN_VALUE) p.startFrame = n;
else {
p.startFrameUndefined = true;
}
n = control.getInt("end_frame"); // $NON-NLS-1$
if (n != Integer.MIN_VALUE) p.endFrame = n;
return obj;
}
/**
* Gets the mass. Overrides PointMass method.
*
* @return the mass
*/
public double getMass() {
Parameter massParam = (Parameter) getParamEditor().getObject("m"); // $NON-NLS-1$
if (massParam != null) return massParam.getValue();
return super.getMass();
}
