svn commit: r790138 - /incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java

[tv...@apache.org]

Author: tvolkert
Date: Wed Jul  1 12:24:27 2009
New Revision: 790138

URL: http://svn.apache.org/viewvc?rev=790138&view=rev
Log:
PIVOT-152 :: Move flip transition into CardPaneSkin

Modified:
    incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java

Modified: incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java
URL: http://svn.apache.org/viewvc/incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java?rev=790138&r1=790137&r2=790138&view=diff
==============================================================================
--- incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java (original)
+++ incubator/pivot/trunk/wtk/src/org/apache/pivot/wtk/skin/CardPaneSkin.java Wed Jul  1 12:24:27 2009
@@ -24,6 +24,7 @@
 import org.apache.pivot.wtk.Container;
 import org.apache.pivot.wtk.Dimensions;
 import org.apache.pivot.wtk.effects.FadeDecorator;
+import org.apache.pivot.wtk.effects.ScaleDecorator;
 import org.apache.pivot.wtk.effects.Transition;
 import org.apache.pivot.wtk.effects.TransitionListener;
 import org.apache.pivot.wtk.effects.easing.Easing;
@@ -44,7 +45,8 @@
     public enum SelectionChangeEffect {
         CROSSFADE,
         HORIZONTAL_SLIDE,
-        VERTICAL_SLIDE
+        VERTICAL_SLIDE,
+        FLIP;
     }
 
     /**
@@ -57,7 +59,11 @@
         public final Component toCard;
 
         public SelectionChangeTransition(int from, int to) {
-            super(SELECTION_CHANGE_DURATION, SELECTION_CHANGE_RATE, false);
+            this(from, to, SELECTION_CHANGE_DURATION);
+        }
+
+        public SelectionChangeTransition(int from, int to, int duration) {
+            super(duration, SELECTION_CHANGE_RATE, false);
 
             CardPane cardPane = (CardPane)getComponent();
             fromCard = (from == -1) ? null : cardPane.get(from);
@@ -70,7 +76,7 @@
      *
      * @author gbrown
      */
-    public class CrossfadeTransition extends SelectionChangeTransition {
+    public final class CrossfadeTransition extends SelectionChangeTransition {
         private FadeDecorator fadeOutDecorator = new FadeDecorator();
         private FadeDecorator fadeInDecorator = new FadeDecorator();
 
@@ -126,7 +132,7 @@
      *
      * @author gbrown
      */
-    public class SlideTransition extends SelectionChangeTransition {
+    public final class SlideTransition extends SelectionChangeTransition {
         private int direction;
         private Easing slideEasing = new Quartic();
 
@@ -170,6 +176,52 @@
         }
     }
 
+    /**
+     * Class that performs flip selection change transitions.
+     *
+     * @author tvolkert
+     */
+    public final class FlipTransition extends SelectionChangeTransition {
+        private double theta;
+        private ScaleDecorator scaleDecorator = new ScaleDecorator();
+
+        public FlipTransition(int from, int to) {
+            super(from, to, 350);
+        }
+
+        @Override
+        public void start(TransitionListener transitionListener) {
+            theta = 0;
+            getComponent().getDecorators().add(scaleDecorator);
+
+            super.start(transitionListener);
+        }
+
+        @Override
+        public void stop() {
+            getComponent().getDecorators().remove(scaleDecorator);
+
+            super.stop();
+        }
+
+        @Override
+        protected void update() {
+            float percentComplete = getPercentComplete();
+
+            if (percentComplete < 1f) {
+                theta = Math.PI * percentComplete;
+
+                float scaleY = (float)Math.abs(Math.cos(theta));
+                scaleDecorator.setScaleY(Math.max(scaleY, 0.01f));
+
+                fromCard.setVisible(theta < Math.PI / 2);
+                toCard.setVisible(theta >= Math.PI / 2);
+
+                repaintComponent();
+            }
+        }
+    }
+
     private boolean sizeToSelection = false;
     private SelectionChangeEffect selectionChangeEffect = null;
 
@@ -376,7 +428,7 @@
             && selectionChangeTransition == null) {
             int previousSelectedIndex = cardPane.getSelectedIndex();
 
-            switch(selectionChangeEffect) {
+            switch (selectionChangeEffect) {
                 case CROSSFADE: {
                     selectionChangeTransition = new CrossfadeTransition(previousSelectedIndex, selectedIndex);
                     break;
@@ -390,6 +442,14 @@
                     }
                     break;
                 }
+
+                case FLIP: {
+                    if (previousSelectedIndex != -1
+                        && selectedIndex != -1) {
+                        selectionChangeTransition = new FlipTransition(previousSelectedIndex, selectedIndex);
+                    }
+                    break;
+                }
             }
 
             if (selectionChangeTransition != null) {