?? inputhandler.java
字號:
package demos.nehe.lesson28;
import demos.common.GLDisplay;
import javax.swing.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
class InputHandler extends KeyAdapter {
private Renderer renderer;
public InputHandler(Renderer renderer, GLDisplay display) {
this.renderer = renderer;
display.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), "Increase # subdivisions");
display.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), "Decrease # subdivisions");
display.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_SPACE, 0), "Toggle control point display");
display.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_LEFT, 0), "Rotate left");
display.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_RIGHT, 0), "Rotate right");
}
public void keyPressed(KeyEvent e) {
// Set flags
switch (e.getKeyCode()) {
case KeyEvent.VK_UP:
renderer.increaseDivisions();
break;
case KeyEvent.VK_DOWN:
renderer.decreaseDivisions();
break;
case KeyEvent.VK_SPACE:
renderer.toggleControlPoints();
break;
default:
processKeyEvent(e, true);
}
}
public void keyReleased(KeyEvent e) {
switch (e.getKeyCode()) {
default:
// Unset flags
processKeyEvent(e, false);
}
}
private void processKeyEvent(KeyEvent e, boolean pressed) {
switch (e.getKeyCode()) {
case KeyEvent.VK_LEFT:
renderer.rotateLeft(pressed);
break;
case KeyEvent.VK_RIGHT:
renderer.rotateRight(pressed);
break;
}
}
}
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