NEWT Screen: Add virtual top-left origin getX()/getY() ; WindowsWindow.c: allow negative coordinates

- ScreenImpl:
  - Use Point & Dimension for holding virtual origin and size
  - updateScreenSize() -> updateVirtualScreenOriginAndSize()
  - DimensionImmutable getNativeScreenSizeImpl()
    -> void getVirtualScreenOriginAndSize(Point virtualOrigin, Dimension virtualSize)

- WindowImpl setFullscreen(true): Use Screen virtual origin

- WindowsWindow.c
  - For x/y coords use GET_X_LPARAM/GET_Y_LPARAM which casts '(int)(short)'
    to preserve negative coordinates.

  - NewtWindow_setVisiblePosSize() allow negative coordinates

1 files changed, 12 insertions, 2 deletions

diff --git a/src/newt/classes/com/jogamp/newt/Screen.java b/src/newt/classes/com/jogamp/newt/Screen.java
index b6d863965..26f19ad6b 100644
--- a/src/newt/classes/com/jogamp/newt/Screen.java
+++ b/src/newt/classes/com/jogamp/newt/Screen.java
@@ -120,12 +120,22 @@ public abstract class Screen {
     public abstract int getIndex();
 
     /**
-     * @return the current screen width, reflecting {@link ScreenMode} rotation 
+     * @return the x position of the virtual top-left origin.
+     */
+    public abstract int getX();
+    
+    /**
+     * @return the y position of the virtual top-left origin.
+     */
+    public abstract int getY();
+    
+    /**
+     * @return the <b>rotated</b> virtual width.
      */
     public abstract int getWidth();
 
     /**
-     * @return the current screen height, reflecting {@link ScreenMode} rotation
+     * @return the <b>rotated</b> virtual height.
      */
     public abstract int getHeight();