/**
* Overrides PointMass findInteractive method.
*
* @param panel the drawing panel
* @param xpix the x pixel position on the panel
* @param ypix the y pixel position on the panel
* @return the first step or motion vector that is hit
*/
public Interactive findInteractive(DrawingPanel panel, int xpix, int ypix) {
Interactive ia = super.findInteractive(panel, xpix, ypix);
if (ia instanceof PositionStep.Position) {
hint = TrackerRes.getString("PointMass.Position.Locked.Hint"); // $NON-NLS-1$
} else if (ia == null) hint = TrackerRes.getString("ParticleModel.Hint"); // $NON-NLS-1$
return ia;
}
/** Constructs a ParticleModel. */
public ParticleModel() {
Footprint[] footprints = super.getFootprints();
Footprint[] newprints = new Footprint[footprints.length + 1];
newprints[0] = CircleFootprint.getFootprint("CircleFootprint.FilledCircle"); // $NON-NLS-1$
for (int i = 0; i < footprints.length; i++) {
newprints[i + 1] = footprints[i];
}
setFootprints(newprints);
defaultFootprint = newprints[0];
setFootprint(defaultFootprint.getName());
// assign a meaningful initial name
setName(TrackerRes.getString("ParticleModel.New.Name")); // $NON-NLS-1$
initializeFunctionPanel();
// set initial hint
hint = TrackerRes.getString("ParticleModel.Hint"); // $NON-NLS-1$
}
/** 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();
}
}
});
}
/**
* Sets the display format for angles.
*
* @param radians <code>true</code> for radians, false for degrees
*/
protected void setAnglesInRadians(boolean radians) {
super.setAnglesInRadians(radians);
functionPanel.initEditor.setAnglesInDegrees(!radians);
String s =
TrackerRes.getString("DynamicParticle.Parameter.InitialTheta.Description")
+ " "; //$NON-NLS-1$ //$NON-NLS-2$
s +=
radians
? TrackerRes.getString("TableTrackView.Radians.Tooltip")
: //$NON-NLS-1$
TrackerRes.getString("TableTrackView.Degrees.Tooltip"); // $NON-NLS-1$
functionPanel.initEditor.setDescription(FunctionEditor.THETA, s);
s =
TrackerRes.getString("DynamicParticle.Parameter.InitialOmega.Description")
+ " "; //$NON-NLS-1$ //$NON-NLS-2$
s +=
radians
? TrackerRes.getString("TableTrackView.RadiansPerSecond.Tooltip")
: //$NON-NLS-1$
TrackerRes.getString("TableTrackView.DegreesPerSecond.Tooltip"); // $NON-NLS-1$
functionPanel.initEditor.setDescription(FunctionEditor.OMEGA, s);
}
/**
* Returns a menu with items that control this track.
*
* @param trackerPanel the tracker panel
* @return a menu
*/
public JMenu getMenu(TrackerPanel trackerPanel) {
if (inspectorItem == null) {
// create the model inspector item
inspectorItem = new JMenuItem();
inspectorItem.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
positionInspector();
getInspector().setVisible(true);
}
});
// create the useDefaultRefFrameItem item
useDefaultRefFrameItem = new JCheckBoxMenuItem();
useDefaultRefFrameItem.setSelected(!useDefaultReferenceFrame);
useDefaultRefFrameItem.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
setUseDefaultReferenceFrame(!useDefaultRefFrameItem.isSelected());
if (ParticleModel.this.trackerPanel.getCoords() instanceof ReferenceFrame) {
lastValidFrame = -1;
refreshSteps();
}
}
});
}
inspectorItem.setText(
TrackerRes.getString("ParticleModel.MenuItem.InspectModel")); // $NON-NLS-1$
useDefaultRefFrameItem.setText(
TrackerRes.getString("ParticleModel.MenuItem.UseDefaultReferenceFrame")); // $NON-NLS-1$
// assemble the menu
JMenu menu = super.getMenu(trackerPanel);
// remove unwanted menu items and separators
menu.remove(autotrackItem);
menu.remove(deleteStepItem);
menu.remove(clearStepsItem);
menu.remove(lockedItem);
menu.remove(autoAdvanceItem);
menu.remove(markByDefaultItem);
menu.insert(inspectorItem, 0);
if (menu.getItemCount() > 1) menu.insertSeparator(1);
// // find visible item and insert useDefaultRefFrameItem after it
// for (int i=0; i<menu.getMenuComponentCount(); i++) {
// if (menu.getMenuComponent(i)==visibleItem) {
// menu.insert(useDefaultRefFrameItem, i+1);
// break;
// }
// }
// eliminate any double separators
Object prevItem = inspectorItem;
int n = menu.getItemCount();
for (int j = 1; j < n; j++) {
Object item = menu.getItem(j);
if (item == null && prevItem == null) { // found extra separator
menu.remove(j - 1);
j = j - 1;
n = n - 1;
}
prevItem = item;
}
return menu;
}