package org.jbox2d.testbed.framework.j2d;
import java.awt.Component;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.event.MouseWheelEvent;
import java.awt.event.MouseWheelListener;
import java.util.List;
import org.jbox2d.common.Vec2;
import org.jbox2d.testbed.framework.TestbedCamera.ZoomType;
import org.jbox2d.testbed.framework.TestbedController;
import org.jbox2d.testbed.framework.TestbedModel;
import org.jbox2d.testbed.framework.TestbedTest;
import com.google.common.collect.Lists;
public class AWTPanelHelper {
/**
* Adds common help text and listeners for awt-based testbeds.
*/
public static void addHelpAndPanelListeners(Component panel, final TestbedModel model,
final TestbedController controller, final int screenDragButton) {
final Vec2 oldDragMouse = new Vec2();
final Vec2 mouse = new Vec2();
List<String> help = Lists.newArrayList();
help.add("Click and drag the left mouse button to move objects.");
help.add("Click and drag the right mouse button to move the view.");
help.add("Shift-Click to aim a bullet, or press space.");
help.add("Scroll to zoom in/out on the mouse position");
help.add("Press '[' or ']' to change tests, and 'r' to restart.");
model.setImplSpecificHelp(help);
panel.addMouseWheelListener(new MouseWheelListener() {
public void mouseWheelMoved(MouseWheelEvent e) {
int notches = e.getWheelRotation();
TestbedTest currTest = model.getCurrTest();
if (currTest == null) {
return;
}
ZoomType zoom = notches < 0 ? ZoomType.ZOOM_IN : ZoomType.ZOOM_OUT;
currTest.getCamera().zoomToPoint(mouse, zoom);
}
});
panel.addMouseListener(new MouseAdapter() {
@Override
public void mouseReleased(MouseEvent arg0) {
controller.queueMouseUp(new Vec2(arg0.getX(), arg0.getY()), arg0.getButton());
if (model.getCodedKeys()[KeyEvent.VK_SHIFT]) {
controller.queueMouseUp(new Vec2(arg0.getX(), arg0.getY()), 10);
}
}
@Override
public void mousePressed(MouseEvent arg0) {
controller.queueMouseDown(new Vec2(arg0.getX(), arg0.getY()), arg0.getButton());
if (arg0.getButton() == screenDragButton) {
oldDragMouse.set(arg0.getX(), arg0.getY());
}
if (model.getCodedKeys()[KeyEvent.VK_SHIFT]) {
controller.queueMouseDown(new Vec2(arg0.getX(), arg0.getY()), 10);
}
}
});
panel.addMouseMotionListener(new MouseMotionAdapter() {
@Override
public void mouseMoved(MouseEvent arg0) {
mouse.set(arg0.getX(), arg0.getY());
controller.queueMouseMove(new Vec2(mouse));
}
@Override
public void mouseDragged(MouseEvent arg0) {
mouse.set(arg0.getX(), arg0.getY());
controller.queueMouseDrag(new Vec2(mouse), arg0.getButton());
if (arg0.getButton() == screenDragButton) {
TestbedTest currTest = model.getCurrTest();
if (currTest == null) {
return;
}
Vec2 diff = oldDragMouse.sub(mouse);
currTest.getCamera().moveWorld(diff);
oldDragMouse.set(mouse);
}
if (model.getCodedKeys()[KeyEvent.VK_SHIFT]) {
controller.queueMouseDrag(new Vec2(arg0.getX(), arg0.getY()), 10);
}
}
});
panel.addKeyListener(new KeyAdapter() {
@Override
public void keyReleased(KeyEvent arg0) {
controller.queueKeyReleased(arg0.getKeyChar(), arg0.getKeyCode());
}
@Override
public void keyPressed(KeyEvent arg0) {
char c = arg0.getKeyChar();
controller.queueKeyPressed(c, arg0.getKeyCode());
switch (c) {
case '[':
controller.lastTest();
break;
case ']':
controller.nextTest();
break;
case 'r':
controller.reset();
break;
case ' ':
controller.queueLaunchBomb();
break;
}
}
});
}
}