From f57776b2d195f0937906eb88b777bb55ccc36967 Mon Sep 17 00:00:00 2001
From: Chris Craik <ccraik@google.com>
Date: Fri, 25 Oct 2013 18:30:17 -0700
Subject: 3d view system!

True 3d transformations are now supported by DisplayLists and the
renderer, initially with the translationZ property on view.

Renderer operations used directly by DisplayList (formerly,
clip/save/restore/saveLayer) are now more simply managed by allocating
them temporarily on the handler's allocator, which exists for a single
frame. This is much simpler than continuing to expand the pool of
pre-allocated DisplayListOps now that more operations are called
directly by DisplayList, especially with z ordered drawing.

Still TODO:
-APIs for camera positioning, shadows
-Make Z apis public, and expose through XML
-Make invalidation / input 3d aware

Change-Id: I95fe6fa03f9b6ddd34a7e0c6ec8dd9fe47c6c6eb
---
 core/java/android/view/View.java | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'core/java/android/view/View.java')

diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 5d264b6..4b97c40 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -2981,6 +2981,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         @ViewDebug.ExportedProperty
         float mTranslationY = 0f;
 
+        @ViewDebug.ExportedProperty
+        float mTranslationZ = 0f;
+
         /**
          * The amount of scale in the x direction around the pivot point. A
          * value of 1 means no scaling is applied.
@@ -10484,6 +10487,35 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
     }
 
     /**
+     * @hide
+     */
+    @ViewDebug.ExportedProperty(category = "drawing")
+    public float getTranslationZ() {
+        return mTransformationInfo != null ? mTransformationInfo.mTranslationZ : 0;
+    }
+
+    /**
+     * @hide
+     */
+    public void setTranslationZ(float translationZ) {
+        ensureTransformationInfo();
+        final TransformationInfo info = mTransformationInfo;
+        if (info.mTranslationZ != translationZ) {
+            invalidateViewProperty(true, false);
+            info.mTranslationZ = translationZ;
+            info.mMatrixDirty = true;
+            invalidateViewProperty(false, true);
+            if (mDisplayList != null) {
+                mDisplayList.setTranslationZ(translationZ);
+            }
+            if ((mPrivateFlags2 & PFLAG2_VIEW_QUICK_REJECTED) == PFLAG2_VIEW_QUICK_REJECTED) {
+                // View was rejected last time it was drawn by its parent; this may have changed
+                invalidateParentIfNeeded();
+            }
+        }
+    }
+
+    /**
      * Hit rectangle in parent's coordinates
      *
      * @param outRect The hit rectangle of the view.
@@ -14142,6 +14174,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
                 }
                 displayList.setTransformationInfo(alpha,
                         mTransformationInfo.mTranslationX, mTransformationInfo.mTranslationY,
+                        mTransformationInfo.mTranslationZ,
                         mTransformationInfo.mRotation, mTransformationInfo.mRotationX,
                         mTransformationInfo.mRotationY, mTransformationInfo.mScaleX,
                         mTransformationInfo.mScaleY);
-- 
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