Use transparent navigation bar.

Ensures a 16:9 preview isn't scaled on a 16:9 screen just due to the
navigation bar being shown.

Change-Id: I7ca7778b0405d3e9ac7ae1db3e7a56cacd703e3b

1 files changed, 24 insertions, 2 deletions

diff --git a/src/com/android/camera/ui/RenderOverlay.java b/src/com/android/camera/ui/RenderOverlay.java
index 8e2f4457f..5f9b7aebf 100644
--- a/src/com/android/camera/ui/RenderOverlay.java
+++ b/src/com/android/camera/ui/RenderOverlay.java
@@ -18,6 +18,7 @@ package com.android.camera.ui;
 
 import android.content.Context;
 import android.graphics.Canvas;
+import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.View;
@@ -48,6 +49,7 @@ public class RenderOverlay extends FrameLayout {
     // reverse list of touch clients
     private List<Renderer> mTouchClients;
     private int[] mPosition = new int[2];
+    private final Rect mInsets = new Rect();
 
     public RenderOverlay(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -69,13 +71,15 @@ public class RenderOverlay extends FrameLayout {
         if (renderer.handlesTouch()) {
             mTouchClients.add(0, renderer);
         }
-        renderer.layout(getLeft(), getTop(), getRight(), getBottom());
+        renderer.layout(mRenderView.getLeft(), mRenderView.getTop(),
+                mRenderView.getRight(), mRenderView.getBottom());
     }
 
     public void addRenderer(int pos, Renderer renderer) {
         mClients.add(pos, renderer);
         renderer.setOverlay(this);
-        renderer.layout(getLeft(), getTop(), getRight(), getBottom());
+        renderer.layout(mRenderView.getLeft(), mRenderView.getTop(),
+                mRenderView.getRight(), mRenderView.getBottom());
     }
 
     public void remove(Renderer renderer) {
@@ -88,6 +92,24 @@ public class RenderOverlay extends FrameLayout {
     }
 
     @Override
+    protected boolean fitSystemWindows(Rect insets) {
+        if (!mInsets.equals(insets)) {
+            mInsets.set(insets);
+            // Make sure onMeasure will be called to adapt to the new insets.
+            requestLayout();
+        }
+        return false;
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        // make sure all the children are resized - insets include status bar,
+        // navigation bar, etc, but in this case, we are only concerned with the size of nav bar
+        super.onMeasure(widthMeasureSpec - mInsets.right, heightMeasureSpec - mInsets.bottom);
+        setMeasuredDimension(widthMeasureSpec, heightMeasureSpec);
+    }
+
+    @Override
     public boolean dispatchTouchEvent(MotionEvent m) {
         if (mGestures != null) {
             if (!mGestures.isEnabled()) return false;