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TVApp Class Reference

A television application. More...

Inheritance diagram for TVApp::

CorbaSampleApp SampleApp List of all members.

Public Methods

void handleExit ()
 This function is called by _bmenu if the associated menu item is selected. More...

void handleRegisterApp ()
void showImage ()
void doOneFrame (final int frameNr, boolean stopAfterwards)
void handleStart ()
 Called when the user presses the start button in the GUI. More...

void handleStop ()
 Called when the user presses the stop button in the GUI. More...

void handleContinue ()
 Called when the user presses the continue button in the GUI. More...

void handleStep ()
 Called when the user presses the step button in the GUI. More...

void handleAppBrowser ()
void dragGestureRecognized (DragGestureEvent event)
void dragDropEnd (DragSourceDropEvent event)
void dragEnter (DragSourceDragEvent event)
void dragOver (DragSourceDragEvent event)
void dragExit (DragSourceEvent event)
void dropActionChanged (DragSourceDragEvent event)

Static Public Methods

void main (String[] args)
 main is called when this is used as an application. More...


Protected Methods

boolean buildSample (JFrame parent, JApplet applet, String[] args)
 Initialization. More...

Detailed Description

A television application.

Member Function Documentation

void TVApp::main (  String    args[] )  [inline, static]
 

main is called when this is used as an application.

This function has to be overloaded in the "leaf node" application itself.

Reimplemented from SampleApp. 

00041 {
00042     TVApp app = new TVApp();
00043     app.doMain(args);
00044 
00045     // doMain will call buildSample
00046 }

void TVApp::handleExit (    )  [inline]
 

This function is called by _bmenu if the associated menu item is selected. 

00052 {
00053     unregisterApp();
00054     quitSample();
00055 }

void TVApp::handleRegisterApp (    )  [inline]
  

00058 {
00059     registerApp(new TVServant());
00060 }

void TVApp::showImage (    )  [inline]
  

00063 {
00064 /*
00065     _viewer.removeAllObjects();
00066     _canvas = new CanvasCorbaImage(_im);
00067     _viewer.addObject(_canvas);
00068 */
00069 }

void TVApp::doOneFrame (  final int    frameNr,
boolean    stopAfterwards
)  [inline]
  

00073 {
00074     _curFrame = frameNr;
00075     _stop = stopAfterwards;
00076     _statField.setText("running");
00077     _running = true;
00078 
00079     if(_im != null)
00080         _im.removeRef();
00081 
00082     try {
00083         _pixelCanvas.setPixels(_tvCapture.getRgb());
00084     }catch(org.omg.CORBA.SystemException e) {
00085         ErrorStreamArea.println(""+e);
00086     }
00087 
00088     final SwingWorker worker = new SwingWorker() {
00089         public Object construct() {
00090             return null; // return value not used
00091         }
00092 
00093         // Runs on the event-dispatching thread.
00094         public void finished() {
00095             showImage();
00096             _statField.setText("idle");
00097 
00098             int nextFrame = _curFrame + _frameInc;
00099 
00100             if (_stop) {
00101                 _running = false;
00102             } else {
00103                 long t = System.currentTimeMillis();
00104                 t = (t - _startTime) / 1000;
00105                 _nrDisplayed++;
00106                 double fps = (double) _nrDisplayed / t;
00107                 DecimalFormat df = new DecimalFormat("####.00");
00108                 _fpsField.setText(" " + df.format(fps) + " fps");
00109                 doOneFrame(nextFrame, _stop);
00110             }
00111         }
00112     }; // SwingWorker
00113 }

void TVApp::handleStart (    )  [inline]
 

Called when the user presses the start button in the GUI. 

00119 {
00120     _startTime = System.currentTimeMillis();
00121     _nrDisplayed = 0;
00122     doOneFrame(0, false);
00123 }

void TVApp::handleStop (    )  [inline]
 

Called when the user presses the stop button in the GUI. 

00129 {
00130     if (_stop)
00131         return;
00132     _stop = true;
00133     _statField.setText("stopping");
00134 }

void TVApp::handleContinue (    )  [inline]
 

Called when the user presses the continue button in the GUI. 

00140 {
00141     if (_running)
00142         return;
00143     _startTime = System.currentTimeMillis();
00144     _nrDisplayed = 0;
00145     doOneFrame(_curFrame + _frameInc, false);
00146 }

void TVApp::handleStep (    )  [inline]
 

Called when the user presses the step button in the GUI. 

00152 {
00153     if (_running)
00154         return;
00155     doOneFrame(_curFrame + _frameInc, true);
00156 }

void TVApp::handleAppBrowser (    )  [inline]
  

00160 {
00161     AppBrowser app = new AppBrowser(/*CorbaMediator.appMgr()*/);
00162     JDialog dlg = new JDialog(getParentFrame(), "App Browser", false);
00163     dlg.getContentPane().add(app);
00164     dlg.pack();
00165     dlg.setVisible(true);
00166 }

void TVApp::dragGestureRecognized (  DragGestureEvent    event )  [inline]
  

00170 {
00171     // a drag gesture has been initiated
00172     HxCorba.ImageRep image = null;
00173     String name = null;
00174     String type = HxCorba.ImageRepHelper.id();
00175     String ior = null;
00176 
00177     name = "Frame"+_curFrame;
00178     image = _im;
00179 
00180     if(image != null) {
00181         ior = CorbaMediator.instance().object_to_string(image);
00182         Transferable data = new ObjectTransfer(type, name, ior);
00183         event.getDragSource().startDrag(event, DragSource.DefaultMoveDrop, data, this);
00184     }
00185 }

void TVApp::dragDropEnd (  DragSourceDropEvent    event )  [inline]
  

00189 {}

void TVApp::dragEnter (  DragSourceDragEvent    event )  [inline]
  

00190 {}

void TVApp::dragOver (  DragSourceDragEvent    event )  [inline]
  

00191 { }

void TVApp::dragExit (  DragSourceEvent    event )  [inline]
  

00192 {}

void TVApp::dropActionChanged (  DragSourceDragEvent    event )  [inline]
  

00193 { }

boolean TVApp::buildSample (  JFrame    parent,
JApplet    applet,
String    args[]
)  [inline, protected, virtual]
 

Initialization.

Reimplemented from SampleApp. 

00205 {
00206     ErrorStreamArea err = new ErrorStreamArea(parent, 10, 80);
00207 
00208     OutputStreamArea.println("Initializing CorbaMediator...");
00209     initCorbaMediator(args);
00210     setAdvancedLookupManager(parent);
00211 
00212     HxCorba.Sizes imSizes = new HxCorba.Sizes(300, 200, 1);
00213     _tvCapture = ServiceRepository.instance().getTVCapture();
00214     if(_tvCapture != null) imSizes = _tvCapture.getSizes();
00215 
00216     _pixelCanvas = new PixelSeqCanvas(imSizes.x, imSizes.y);
00217 
00218     _viewer = ViewerFactory.makeBasicViewer();
00219 
00220     _dragSource = new DragSource();
00221     _dragSource.createDefaultDragGestureRecognizer(((BasicViewer)_viewer).ed,
00222         DnDConstants.ACTION_COPY_OR_MOVE, this);
00223 
00224     // Main panel
00225 
00226     JPanel gui = new JPanel(new GridBagLayout());
00227 
00228     //HX.addGridComp(this, _viewer, 0, 0, 1, 1,
00229     //               GridBagConstraints.BOTH, 1.0, 1.0, 0, 3);
00230     HX.addGridComp(gui, _pixelCanvas, 0, 0, 1, 1,
00231                    GridBagConstraints.BOTH, 1.0, 1.0, 0, 3);
00232 
00233 
00234     // Add button panel
00235 
00236     JPanel butPanel = new JPanel();
00237 
00238     JButton b1 = new JButton("Start");
00239     b1.setToolTipText("Start playing");
00240     b1.setEnabled(_tvCapture != null);
00241     b1.addActionListener(new AbstractAction() {
00242         public void actionPerformed(ActionEvent e) {
00243             handleStart();
00244         }});
00245     butPanel.add(b1);
00246 
00247     JButton b2 = new JButton("Stop");
00248     b2.setToolTipText("Stop playing");
00249     b2.setEnabled(_tvCapture != null);
00250     b2.addActionListener(new AbstractAction() {
00251         public void actionPerformed(ActionEvent e) {
00252             handleStop();
00253         }});
00254     butPanel.add(b2);
00255 
00256     JButton b4 = new JButton("Step");
00257     b4.setToolTipText("Step one frame");
00258     b4.setEnabled(_tvCapture != null);
00259     b4.addActionListener(new AbstractAction() {
00260         public void actionPerformed(ActionEvent e) {
00261             handleStep();
00262         }});
00263     butPanel.add(b4);
00264 
00265     _statField = new JTextField("Status     ", 6);
00266     _statField.setEditable(false);
00267     butPanel.add(_statField);
00268 
00269     _fpsField = new JTextField("xxxxxx fps   ", 6);
00270     _fpsField.setEditable(false);
00271     butPanel.add(_fpsField);
00272 
00273     HX.addGridComp(gui, butPanel, 0, 1, 1, 1,
00274                    GridBagConstraints.HORIZONTAL, 1.0, 0.0, 0, 3);
00275 
00276 
00277 
00278     // Create ExtMenuBar:
00279 
00280     _bmenu = new ExtMenuBar(this);
00281     _bmenu.addMenu("File");
00282     _bmenu.addMenuItem("File", "Exit", "handleExit");
00283 
00284     if(isStandalone()) {
00285         _bmenu.addMenu("Tools");
00286         _bmenu.addMenuItem("Tools", "App Browser", "handleAppBrowser");
00287         _bmenu.addSeparator("Tools");
00288         _bmenu.addMenuItem("Tools", "Register App", "handleRegisterApp");
00289     }
00290 
00291     parent.setJMenuBar(_bmenu);
00292     parent.getContentPane().add(gui, BorderLayout.CENTER);
00293 
00294     parent.setSize(370, 350);
00295     parent.setLocation(0, 0);
00296 
00297     OutputStreamArea.println("Done");
00298 
00299     // Create OutFrame, for output and errors, also from C++
00300 //    OutDialog out = new OutDialog(parent, 12, 4, 80);
00301 //    out.setLocation(0, 428);
00302 //    out.show();
00303 
00304     return true;
00305 }

The documentation for this class was generated from the following file:
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