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package vtk.sample;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.concurrent.TimeUnit;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import vtk.vtkActor;
import vtk.vtkConeSource;
import vtk.vtkNativeLibrary;
import vtk.vtkObject;
import vtk.vtkPanel;
import vtk.vtkPolyDataMapper;
/**
* This test create in a secondary frame a VTK application. When that frame get
* closed we want to make sure all the VTK memory is released without any crash.
*
* @author sebastien jourdain - sebastien.jourdain@kitware.com
*/
public class ReleaseVtkPanel {
// -----------------------------------------------------------------
// Load VTK library and print which library was not properly loaded
static {
if (!vtkNativeLibrary.LoadAllNativeLibraries()) {
for (vtkNativeLibrary lib : vtkNativeLibrary.values()) {
if (!lib.IsLoaded()) {
System.out.println(lib.GetLibraryName() + " not loaded");
}
}
}
vtkNativeLibrary.DisableOutputWindow(null);
}
// -----------------------------------------------------------------
private static class VtkApplication extends JPanel {
private static final long serialVersionUID = -6486953735097088917L;
private vtkPanel panel3dA;
private vtkPanel panel3dB;
public VtkApplication() {
super(new GridLayout(1, 2));
panel3dA = new vtkPanel();
panel3dB = new vtkPanel();
vtkConeSource cone = new vtkConeSource();
vtkPolyDataMapper mapper = new vtkPolyDataMapper();
vtkActor actor = new vtkActor();
mapper.SetInputConnection(cone.GetOutputPort());
actor.SetMapper(mapper);
panel3dA.GetRenderer().AddActor(actor);
add(panel3dA);
panel3dB.GetRenderer().AddActor(actor);
add(panel3dB);
}
public void Delete() {
panel3dA.Delete();
panel3dB.Delete();
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
// Setup GC to run every 1 second in EDT
vtkObject.JAVA_OBJECT_MANAGER.getAutoGarbageCollector().SetScheduleTime(5, TimeUnit.SECONDS);
vtkObject.JAVA_OBJECT_MANAGER.getAutoGarbageCollector().SetDebug(true);
vtkObject.JAVA_OBJECT_MANAGER.getAutoGarbageCollector().Start();
JButton startVTKApp = new JButton("Start VTK application");
startVTKApp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
final VtkApplication app = new VtkApplication();
JFrame f = buildFrame("VtkApp", app, 400, 200);
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
app.Delete();
}
});
f.setVisible(true);
}
});
JFrame mainFrame = buildFrame("Launcher", startVTKApp, 200, 200);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setVisible(true);
}
});
}
public static JFrame buildFrame(String title, JComponent content, int width, int height) {
JFrame f = new JFrame(title);
f.getContentPane().setLayout(new BorderLayout());
f.getContentPane().add(content, BorderLayout.CENTER);
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setSize(width, height);
f.setLocationRelativeTo(null);
return f;
}
}
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