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package vtk;
import vtk.*;
import javax.swing.Timer;
import java.awt.*;
import java.awt.event.*;
public class vtkCanvas extends vtkPanel implements MouseListener, MouseMotionListener, KeyListener
{
protected vtkGenericRenderWindowInteractor iren = new vtkGenericRenderWindowInteractor();
protected Timer timer = new Timer(10, new DelayAction());
protected int ctrlPressed = 0;
protected int shiftPressed = 0;
protected vtkPlaneWidget pw = new vtkPlaneWidget();
protected vtkBoxWidget bw = new vtkBoxWidget();
static {
// load up hybrid for 3d widgets
System.loadLibrary("vtkHybridJava");
System.loadLibrary("vtkWidgetsJava");
}
public vtkCanvas()
{
super();
iren.SetRenderWindow(rw);
iren.TimerEventResetsTimerOff();
iren.AddObserver("CreateTimerEvent", this, "StartTimer");
iren.AddObserver("DestroyTimerEvent", this, "DestroyTimer");
iren.SetSize(200, 200);
iren.ConfigureEvent();
pw.AddObserver("EnableEvent", this, "BeginPlaneInteraction");
bw.AddObserver("EnableEvent", this, "BeginBoxInteraction");
pw.SetKeyPressActivationValue('l');
bw.SetKeyPressActivationValue('b');
pw.SetInteractor(iren);
bw.SetInteractor(iren);
addComponentListener(new ComponentAdapter()
{
public void componentResized(ComponentEvent event)
{
// The Canvas is being resized, get the new size
int width = getWidth();
int height = getHeight();
setSize(width, height);
}
});
ren.SetBackground(0.0, 0.0, 0.0);
}
public void StartTimer() {
if (timer.isRunning())
timer.stop();
timer.setRepeats(true);
timer.start();
}
public void DestroyTimer() {
if (timer.isRunning())
timer.stop();
}
public vtkGenericRenderWindowInteractor getIren() {
return this.iren;
}
public void setInteractorStyle(vtkInteractorStyle style) {
iren.SetInteractorStyle(style);
}
public void addToPlaneWidget(vtkProp3D prop) {
pw.SetProp3D(prop);
pw.PlaceWidget();
}
public void addToBoxWidget(vtkProp3D prop) {
bw.SetProp3D(prop);
bw.PlaceWidget();
}
public void BeginPlaneInteraction() {
System.out.println("Plane widget begin interaction");
}
public void BeginBoxInteraction() {
System.out.println("Box widget begin interaction");
}
public void setSize(int x, int y)
{
super.setSize(x,y);
if (windowset == 1) {
Lock();
rw.SetSize(x,y);
iren.SetSize(x, y);
iren.ConfigureEvent();
UnLock();
}
}
public void mouseClicked(MouseEvent e) {
}
public void mousePressed(MouseEvent e)
{
if (ren.VisibleActorCount() == 0) return;
Lock();
rw.SetDesiredUpdateRate(5.0);
lastX = e.getX();
lastY = e.getY();
ctrlPressed = (e.getModifiers() & InputEvent.CTRL_MASK) == InputEvent.CTRL_MASK ? 1:0;
shiftPressed = (e.getModifiers() & InputEvent.SHIFT_MASK) == InputEvent.SHIFT_MASK ? 1:0;
int repeat = 0;
if(e.getClickCount() != 1)
repeat = 1;
iren.SetEventInformationFlipY(e.getX(), e.getY(),
ctrlPressed, shiftPressed, '0', 0, "0");
if ((e.getModifiers() & InputEvent.BUTTON1_MASK) ==
InputEvent.BUTTON1_MASK)
{
iren.LeftButtonPressEvent();
}
else if ((e.getModifiers() & InputEvent.BUTTON2_MASK) ==
InputEvent.BUTTON2_MASK) {
{
iren.MiddleButtonPressEvent();
}
}
else if ((e.getModifiers() & InputEvent.BUTTON3_MASK) ==
InputEvent.BUTTON3_MASK) {
{
iren.RightButtonPressEvent();
}
}
UnLock();
}
public void mouseReleased(MouseEvent e)
{
rw.SetDesiredUpdateRate(0.01);
ctrlPressed = (e.getModifiers() & InputEvent.CTRL_MASK) == InputEvent.CTRL_MASK ? 1:0;
shiftPressed = (e.getModifiers() & InputEvent.SHIFT_MASK) == InputEvent.SHIFT_MASK ? 1:0;
iren.SetEventInformationFlipY(e.getX(), e.getY(),
ctrlPressed, shiftPressed, '0', 0, "0");
if ((e.getModifiers() & InputEvent.BUTTON1_MASK) ==
InputEvent.BUTTON1_MASK) {
Lock();
iren.LeftButtonReleaseEvent();
UnLock();
}
if ((e.getModifiers() & InputEvent.BUTTON2_MASK) ==
InputEvent.BUTTON2_MASK) {
Lock();
iren.MiddleButtonReleaseEvent();
UnLock();
}
if ((e.getModifiers() & InputEvent.BUTTON3_MASK) ==
InputEvent.BUTTON3_MASK) {
Lock();
iren.RightButtonReleaseEvent();
UnLock();
}
}
public void mouseEntered(MouseEvent e)
{
this.requestFocus();
iren.SetEventInformationFlipY(e.getX(), e.getY(),
0, 0, '0', 0, "0");
iren.EnterEvent();
}
public void mouseExited(MouseEvent e) {
iren.SetEventInformationFlipY(e.getX(), e.getY(),
0, 0, '0', 0, "0");
iren.LeaveEvent();
}
public void mouseMoved(MouseEvent e)
{
lastX = e.getX();
lastY = e.getY();
ctrlPressed = (e.getModifiers() & InputEvent.CTRL_MASK) == InputEvent.CTRL_MASK ? 1:0;
shiftPressed = (e.getModifiers() & InputEvent.SHIFT_MASK) == InputEvent.SHIFT_MASK ? 1:0;
iren.SetEventInformationFlipY(e.getX(), e.getY(),
ctrlPressed, shiftPressed, '0', 0, "0");
Lock();
iren.MouseMoveEvent();
UnLock();
}
public void mouseDragged(MouseEvent e)
{
if (ren.VisibleActorCount() == 0) return;
int x = e.getX();
int y = e.getY();
ctrlPressed = (e.getModifiers() & InputEvent.CTRL_MASK) == InputEvent.CTRL_MASK ? 1:0;
shiftPressed = (e.getModifiers() & InputEvent.SHIFT_MASK) == InputEvent.SHIFT_MASK ? 1:0;
iren.SetEventInformationFlipY(e.getX(), e.getY(),
ctrlPressed, shiftPressed, '0', 0, "0");
Lock();
iren.MouseMoveEvent();
UnLock();
UpdateLight();
}
public void keyTyped(KeyEvent e) {}
public void keyPressed(KeyEvent e)
{
if (ren.VisibleActorCount() == 0) return;
char keyChar = e.getKeyChar();
ctrlPressed = (e.getModifiers() & InputEvent.CTRL_MASK) == InputEvent.CTRL_MASK ? 1:0;
shiftPressed = (e.getModifiers() & InputEvent.SHIFT_MASK) == InputEvent.SHIFT_MASK ? 1:0;
iren.SetEventInformationFlipY(lastX, lastY,
ctrlPressed, shiftPressed, keyChar, 0, String.valueOf(keyChar));
Lock();
iren.KeyPressEvent();
iren.CharEvent();
UnLock();
}
public void keyReleased(KeyEvent e) {}
private class DelayAction implements ActionListener {
public void actionPerformed(ActionEvent evt) {
Lock();
iren.TimerEvent();
UpdateLight();
UnLock();
}
}
}
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