?? inputhandler.java
字號(hào):
package demos.nehe.lesson24;
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 glDisplay) {
this.renderer = renderer;
glDisplay.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0), "Scroll up");
glDisplay.registerKeyStrokeForHelp(KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0), "Scroll down");
}
public void keyPressed(KeyEvent e) {
switch (e.getKeyCode()) {
case KeyEvent.VK_UP: // Is Up Arrow Being Pressed?
renderer.setScroll(renderer.getScroll() - 12); // If So, Decrease 'scroll' Moving Screen Down
break;
case KeyEvent.VK_DOWN: // Is Down Arrow Being Pressed?
renderer.setScroll(renderer.getScroll() + 12); // If So, Increase 'scroll' Moving Screen Up
break;
}
}
}
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