1 files changed, 75 insertions, 25 deletions
diff --git a/src/graphui/classes/com/jogamp/graph/ui/TooltipShape.java b/src/graphui/classes/com/jogamp/graph/ui/TooltipShape.java
index 40cc8c66d..be73252fd 100644
--- a/src/graphui/classes/com/jogamp/graph/ui/TooltipShape.java
+++ b/src/graphui/classes/com/jogamp/graph/ui/TooltipShape.java
@@ -27,9 +27,12 @@
  */
 package com.jogamp.graph.ui;
 
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.curve.opengl.GLRegion;
 import com.jogamp.graph.curve.opengl.RegionRenderer;
 import com.jogamp.graph.ui.layout.Alignment;
 import com.jogamp.graph.ui.layout.BoxLayout;
+import com.jogamp.graph.ui.layout.Padding;
 import com.jogamp.graph.ui.shapes.Rectangle;
 import com.jogamp.math.Vec2f;
 import com.jogamp.math.Vec4f;
@@ -37,30 +40,47 @@ import com.jogamp.math.geom.AABBox;
 import com.jogamp.math.util.PMVMatrix4f;
 import com.jogamp.opengl.GL2ES2;
 import com.jogamp.opengl.GLAutoDrawable;
+import com.jogamp.opengl.GLProfile;
+import com.jogamp.opengl.util.texture.TextureSequence;
 
 /** A HUD {@link Shape} {@link Tooltip} for {@link Shape}, see {@link Shape#setToolTip(Tooltip)}. */
 public class TooltipShape extends Tooltip {
     /**
-     * Optional HUD tip destroy callback for the user provided {@link Shape}, see {@link #Tooltip#destroyTip(GL2ES2, RegionRenderer, Shape)}.
+     * Optional HUD tip {@link #destroy(TooltipShape, GL2ES2, RegionRenderer, Shape) destroy callback}
+     * for the user provided {@link Shape}, see {@link Tooltip#destroyTip(GL2ES2, RegionRenderer, Shape)}.
      * <p>
      * In case no callback is being set via {@link TooltipShape#TooltipShape(Vec2f, long, Shape, DestroyCallback)}
-     * {@link #Tooltip#destroyTip(GL2ES2, RegionRenderer, Shape)} destroys the shape.
-     * Otherwise the callback gets invoked.
+     * {@link Tooltip#destroyTip(GL2ES2, RegionRenderer, Shape)} destroys the shape.
+     * Otherwise this callback gets invoked.
+     * </p>
+     * <p>
+     * In case user provided {@code tip} is reused within a DAG,
+     * the provided implementation shall do nothing, i.e. use {@link TooltipShape#NoOpDtor}.
      * </p>
-     * @param gl
-     * @param renderer
-     * @param tip the user provided {@link Shape} as passed via {@link TooltipShape#TooltipShape(Vec4f, Vec4f, float, Vec2f, long, int, Shape, DestroyCallback)}.
      * @see TooltipShape#TooltipShape(Vec2f, long, Shape, DestroyCallback)
      * @see TooltipShape#createTip(GLAutoDrawable, Scene, PMVMatrix4f, AABBox)
      */
     public static interface DestroyCallback {
-        public void destroyTip(final GL2ES2 gl, final RegionRenderer renderer, final Shape tip);
+        /**
+         * The custom destroy method of {@link DestroyCallback}
+         * @param tts the {#link TooltipShape} instance
+         * @param gl current {@link GL2ES2}
+         * @param renderer used {@link RegionRenderer}
+         * @param tip the user provided {@link Shape} as passed via {@link TooltipShape#TooltipShape(Vec4f, Vec4f, float, Vec2f, long, int, Shape, DestroyCallback)}.
+         */
+        public void destroy(TooltipShape tts, final GL2ES2 gl, final RegionRenderer renderer, final Shape tip);
     }
+    /** No operation {@link DestroyCallback}, e.g. for a user provide {@code tip} {@link Shape}, reused within a DAG. */
+    public static DestroyCallback NoOpDtor = new DestroyCallback() {
+        @Override
+        public void destroy(final TooltipShape tts, final GL2ES2 gl, final RegionRenderer renderer, final Shape tip) { }
+    };
 
-    /** Text of this tooltip */
-    private final Shape tip;
+    /** Shape of this tooltip */
+    private volatile Shape tip;
     private final Vec2f scale;
     private final float borderThickness;
+    private final Padding padding;
     private final DestroyCallback dtorCallback;
 
     /**
@@ -71,32 +91,53 @@ public class TooltipShape extends Tooltip {
      * </p>
      * @param scale HUD tip scale for the tip shape
      * @param delayMS delay until HUD tip is visible after timer start (mouse moved)
+     * @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
      * @param tip HUD tip shape
      */
     public TooltipShape(final Vec2f scale, final long delayMS, final int renderModes, final Shape tip) {
-        this(null, null, 0, scale, delayMS, renderModes, tip, null);
+        this(null, null, 0, null, scale, delayMS, renderModes, tip, null);
     }
 
     /**
      * Ctor of {@link TooltipShape}.
      * <p>
-     * The {@link Shape} is not destroyed via {@link #destroyTip(GL2ES2, RegionRenderer, Shape)},
-     * if {@link DestroyCallback} {@code dtor} is not {@code null}, otherwise it is destroyed.
+     * The {@link Shape} is destroyed via provided {@link DestroyCallback} {@code dtor} if not {@code null},
+     * otherwise the default {@link Tooltip#destroyTip(GL2ES2, RegionRenderer, Shape)} gets called.
+     * </p>
+     * <p>
+     * In case {@link DestroyCallback} {@code dtor} is being used, the user {@code tip}
+     * is removed from internal layout shapes before they get destroyed and the single {@code tip}
+     * gets passed to {@link DestroyCallback#destroy(TooltipShape, GL2ES2, RegionRenderer, Shape)}.
+     * </p>
+     * <p>
+     * In case user provided {@code tip} is reused within a DAG,
+     * the provided implementation shall do nothing, i.e. use {@link TooltipShape#NoOpDtor}.
      * </p>
+     * @param backColor optional background color
+     * @param borderColor optional border color
+     * @param borderThickness border thickness
+     * @param padding optional padding for the given {@code tip} for the internal wrapper group
      * @param scale HUD tip scale for the tip shape
      * @param delayMS delay until HUD tip is visible after timer start (mouse moved)
+     * @param renderModes Graph's {@link Region} render modes, see {@link GLRegion#create(GLProfile, int, TextureSequence) create(..)}.
      * @param tip HUD tip shape
-     * @param dtor
+     * @param dtor optional {@link DestroyCallback}
      */
     public TooltipShape(final Vec4f backColor, final Vec4f borderColor, final float borderThickness,
-                        final Vec2f scale, final long delayMS, final int renderModes, final Shape tip, final DestroyCallback dtor) {
+                        final Padding padding, final Vec2f scale,
+                        final long delayMS, final int renderModes, final Shape tip, final DestroyCallback dtor) {
         super(backColor, borderColor, delayMS, renderModes);
         this.tip = tip;
         this.scale = scale;
         this.borderThickness = borderThickness;
+        this.padding = padding;
         this.dtorCallback = dtor;
     }
 
+    public void setTip(final Shape tip) {
+        this.tip = tip;
+    }
+
     @Override
     public Shape createTip(final GLAutoDrawable drawable, final Scene scene, final PMVMatrix4f pmv, final AABBox toolMvBounds) {
         final float zEps = scene.getZEpsilon(16);
@@ -104,26 +145,35 @@ public class TooltipShape extends Tooltip {
         final float w = toolMvBounds.getWidth()*scale.x();
         final float h = toolMvBounds.getHeight()*scale.y();
 
-        final Group g = new Group(new BoxLayout(w, h, Alignment.FillCenter));
-        g.addShape(new Rectangle(renderModes, 1*w/h, 1, 0).setColor(backColor).setBorder(borderThickness).setBorderColor(frontColor).move(0, 0, -zEps));
-        g.setName("TooltipShapeGroup");
-        g.addShape(tip);
-        g.setInteractive(false);
+        // tipWrapper ensures user 'tip' shape won't get mutated (scale, move) for DAG
+        final Group tipWrapper = new Group("TTSWrapper", null, null, tip);
+        if( null != padding ) {
+            tipWrapper.setPaddding(padding);
+        }
+        final Group tipGroup = new Group(new BoxLayout(w, h, Alignment.FillCenter));
+        tipGroup.addShape(new Rectangle(renderModes, 1*w/h, 1, 0).setColor(backColor).setBorder(borderThickness).setBorderColor(frontColor).move(0, 0, -zEps));
+        tipGroup.setName("TTSGroup");
+        tipGroup.addShape(tipWrapper);
+        tipGroup.setInteractive(false);
 
         final Vec2f pos = getTipMvPosition(scene, toolMvBounds, w, h);
-        g.moveTo(pos.x(), pos.y(), 100*zEps);
-        return g;
+        tipGroup.moveTo(pos.x(), pos.y(), 100*zEps);
+        return tipGroup;
     }
     @Override
-    public void destroyTip(final GL2ES2 gl, final RegionRenderer renderer, final Shape tipGroup) {
+    public void destroyTip(final GL2ES2 gl, final RegionRenderer renderer, final Shape tipGroup_) {
         if( null != dtorCallback ) {
             // Remove user tip from our layout group first and dtor our group
             // This allows the user to receive its own passed tip
-            ((Group)tipGroup).removeShape(tip);
+            final Group tipGroup = (Group)tipGroup_;
+            final Group tipWrapper = (Group)tipGroup.getShapeByIdx(1);
+            if( null == tipWrapper.removeShape(tip) ) {
+                throw new RuntimeException("Tip "+tip.getName()+" not contained in "+tipWrapper.getName());
+            }
             tipGroup.destroy(gl, renderer);
-            dtorCallback.destroyTip(gl, renderer, tip);
+            dtorCallback.destroy(this, gl, renderer, tip);
         } else {
-            super.destroyTip(gl, renderer, tipGroup);
+            super.destroyTip(gl, renderer, tipGroup_);
         }
     }
 }