GraphUI: Adopting Vec*f API; Adding Group; Scene + Group are Container, traversing the PMVMatrix throughout childs (-> see TreeTool).

Utilizing the Vec*f (and Matrix4f) API w/ AABBox et al renders our code more clean & safe,
see commit 15e60161787224e85172685f74dc0ac195969b51.

A Group allows to contain multiple Shapes,
hence the PMVMatrix must be traversed accordingly using TreeTool
for all operations (draw, picking, win->obj coordinates, ..).

Hence Scene + Group are now implementing Container
and reuse code via TreeTool and a Shape.Visitor*.

This will allow further simplification of user code.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/graphui/classes/jogamp/graph/ui/shapes/Label0.java b/src/graphui/classes/jogamp/graph/ui/shapes/Label0.java
index fe5f7f8e5..a091a89ed 100644
--- a/src/graphui/classes/jogamp/graph/ui/shapes/Label0.java
+++ b/src/graphui/classes/jogamp/graph/ui/shapes/Label0.java
@@ -31,6 +31,7 @@ import com.jogamp.graph.curve.Region;
 import com.jogamp.graph.curve.opengl.TextRegionUtil;
 import com.jogamp.graph.font.Font;
 import com.jogamp.graph.geom.plane.AffineTransform;
+import com.jogamp.opengl.math.Vec2f;
 import com.jogamp.opengl.math.geom.AABBox;
 
 public class Label0 {
@@ -65,10 +66,10 @@ public class Label0 {
         this.font = font;
     }
 
-    public final AABBox addShapeToRegion(final float scale, final Region region, final float[] txy,
+    public final AABBox addShapeToRegion(final float scale, final Region region, final Vec2f txy,
                                          final AffineTransform tmp1, final AffineTransform tmp2, final AffineTransform tmp3)
     {
-        tmp1.setToTranslation(txy[0], txy[1]);
+        tmp1.setToTranslation(txy.x(), txy.y());
         tmp1.scale(scale, scale, tmp2);
         return TextRegionUtil.addStringToRegion(region, font, tmp1, text, rgbaColor, tmp2, tmp3);
     }