Hey all…me again 
So I'm starting to play around with the UI…and I've decided to give fengGUI a try and I've come across a problem.
I created a separate gamestate for the UI, but unfortunately, can't seem to get my mouse to not interact with the game when it is focused on the window or buttons I have created. Here's the code of the UI gamestate:
import org.fenggui.Button;
import org.fenggui.Container;
import org.fenggui.Display;
import org.fenggui.FengGUI;
import org.fenggui.RadioButton;
import org.fenggui.ToggableGroup;
import org.fenggui.composites.Window;
import org.fenggui.layout.BorderLayout;
import org.fenggui.layout.BorderLayoutData;
import org.fenggui.layout.GridLayout;
import org.fenggui.layout.RowLayout;
import org.fenggui.render.lwjgl.LWJGLBinding;
import org.fenggui.util.Point;
import org.fenggui.util.Spacing;
import utils.FengJMEInputHandler;
import com.jme.image.Texture;
import com.jme.input.Mouse;
import com.jme.input.MouseInput;
import com.jme.math.Vector3f;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.util.Timer;
import com.jmex.game.state.GameState;
import com.jme.renderer.ColorRGBA;
/**
* FengJME - A test class for integrating FengGUI and jME.
*
* @author Josh (updated by neebie)
*
*/
public class InGameUI extends GameState
{
protected FengJMEInputHandler input = null;
protected Display disp = null;
protected Timer timer;
protected static boolean focus;
protected Window window;
//protected Mouse mouse;
public InGameUI() {
initGUI();
}
/**
* Create our GUI. FengGUI init code goes in here
*
*/
protected void initGUI()
{
// Grab a display using an LWJGL binding
// (obviously, since jME uses LWJGL)
final int width = DisplaySystem.getDisplaySystem().getWidth();
final int height = DisplaySystem.getDisplaySystem().getHeight();
disp = new Display(new LWJGLBinding());
input = new FengJMEInputHandler(disp);
window = FengGUI.createWindow(disp, true, false, false, true);
window.setTitle("Test Menu");
window.setPosition(new Point(50,200));
window.getContentContainer().setLayoutManager(new RowLayout(false));
window.getContentContainer().getAppearance().setPadding(new Spacing(10, 10));
// center the window on the screen
window.setX(width/2 - window.getWidth()/2);
window.setY(0);
final ToggableGroup<String> toggableGroup = new ToggableGroup<String>();
RadioButton<String> radioButtonCoffee = new RadioButton<String>("coffee", toggableGroup, "coffee");
RadioButton<String> radioButtonTea = new RadioButton<String>("tea", toggableGroup, "tea");
radioButtonTea.setSelected(true);
Button button1 = new Button("Guns!");
window.getContentContainer().addWidget(button1);
Button button2 = new Button("Laser");
window.getContentContainer().addWidget(button2);
Button button3 = new Button("Missile");
window.getContentContainer().addWidget(button3);
// container for Radio Buttons
Container container = new Container(new RowLayout(true));
container.addWidget(radioButtonCoffee);
container.addWidget(radioButtonTea);
window.getContentContainer().addWidget(container);
disp.layout();
//MouseInput.get().setCursorVisible(true);
}
@Override
public void cleanup() {
// TODO Auto-generated method stub
}
@Override
public void render(float tpf) {
// TODO Auto-generated method stub
Texture defTex = TextureState.getDefaultTexture().createSimpleClone();
defTex.setScale(new Vector3f(1, 1, 1));
TextureState defaultTextureState = DisplaySystem.getDisplaySystem().getRenderer().createTextureState();
defaultTextureState.setTexture(defTex);
defaultTextureState.apply();
// render the GUI
disp.display();
}
@Override
public void update(float tpf) {
// TODO Auto-generated method stub
input.update(tpf);
if (window.hasFocus()) {
InGameUI.setFocus(true);
}else {
InGameUI.setFocus(false);
}
System.out.println("focus is: " + InGameUI.isFocus());
}
public static boolean isFocus() {
return focus;
}
public static void setFocus(boolean focus) {
InGameUI.focus = focus;
}
}
As you can see, I created a static boolean to track whether or not my window is in focus. In MouseClickToMove class (...the class that controls mouse click to move of my "ship"..) I check for that boolean's value like this:
if (isPressed == 0 && InGameUI.isFocus() == false) {
final Plane p1 = new Plane();
// Plane p2 = new Plane();
// Vector3f loc2 = new Vector3f();
final Vector3f t1a = new Vector3f(0, 0, 0); // point a on Triangle
// 1;
final Vector3f t1b = new Vector3f(1, 0, 0); // point b on Triangle
// 1;
final Vector3f t1c = new Vector3f(0, 0, 1); // point c on Triangle
// 1;
final Triangle t1 = new Triangle(t1a, t1b, t1c);
p1.setPlanePoints(t1);
...that's only part of the MouseClickToMove class...but for some reason, the "focus" variable is always false. I've manually set it to true, so if I was reading the flag correctly, the ship wouldn't move...so I'm wondering if the hasFocus() function in fengGUI is the function I really want to check here.
...any advice?