camera: Touch focus support for camcorder

 * Available when video snapshots are not supported.
 * Original from CodeAurora Forum.

Sultanxda: Adapted to Snapdragon Camera

Change-Id: I232c178430db08e7366aa9f91b4926d07e7c225d

1 files changed, 54 insertions, 1 deletions

diff --git a/src/com/android/camera/VideoUI.java b/src/com/android/camera/VideoUI.java
index daab24a40..2e1d300cc 100644
--- a/src/com/android/camera/VideoUI.java
+++ b/src/com/android/camera/VideoUI.java
@@ -42,11 +42,14 @@ import android.widget.LinearLayout;
 import android.widget.ListView;
 import android.widget.PopupWindow;
 import android.widget.TextView;
+import android.view.View.OnLayoutChangeListener;
 
 import com.android.camera.CameraPreference.OnPreferenceChangedListener;
+import com.android.camera.FocusOverlayManager.FocusUI;
 import com.android.camera.ui.AbstractSettingPopup;
 import com.android.camera.ui.CameraControls;
 import com.android.camera.ui.CameraRootView;
+import com.android.camera.ui.FocusIndicator;
 import com.android.camera.ui.ListSubMenu;
 import com.android.camera.ui.ModuleSwitcher;
 import com.android.camera.ui.PieRenderer;
@@ -59,6 +62,7 @@ import com.android.camera.util.CameraUtil;
 public class VideoUI implements PieRenderer.PieListener,
         PreviewGestures.SingleTapListener,
         CameraRootView.MyDisplayListener,
+	FocusUI,
         SurfaceHolder.Callback,
         PauseButton.OnPauseButtonListener {
     private static final String TAG = "CAM_VideoUI";
@@ -332,7 +336,7 @@ public class VideoUI implements PieRenderer.PieListener,
     private void layoutPreview(float ratio) {
         FrameLayout.LayoutParams lp = null;
 
-        float scaledTextureWidth, scaledTextureHeight;
+        float scaledTextureWidth = 0.0f, scaledTextureHeight = 0.0f;
         int rotation = CameraUtil.getDisplayRotation(mActivity);
         if (mScreenRatio == CameraUtil.RATIO_16_9
                 && CameraUtil.determinCloseRatio(ratio) == CameraUtil.RATIO_4_3) {
@@ -412,6 +416,11 @@ public class VideoUI implements PieRenderer.PieListener,
             mSurfaceView.setLayoutParams(lp);
             mSurfaceView.requestLayout();
         }
+
+        if (scaledTextureWidth > 0 && scaledTextureHeight > 0) {
+            mController.onScreenSizeChanged((int) scaledTextureWidth,
+                    (int) scaledTextureHeight);
+        }
     }
 
     /**
@@ -1131,4 +1140,48 @@ public class VideoUI implements PieRenderer.PieListener,
     public void adjustOrientation() {
         setOrientation(mOrientation, false);
     }
+
+    // implement focusUI interface
+    private FocusIndicator getFocusIndicator() {
+        return mPieRenderer;
+    }
+
+    @Override
+    public boolean hasFaces() {
+        return false;
+    }
+
+    @Override
+    public void clearFocus() {
+        FocusIndicator indicator = getFocusIndicator();
+        if (indicator != null) indicator.clear();
+    }
+
+    @Override
+    public void setFocusPosition(int x, int y) {
+        mPieRenderer.setFocus(x, y);
+    }
+
+    @Override
+    public void onFocusStarted(){
+        getFocusIndicator().showStart();
+    }
+
+    @Override
+    public void onFocusSucceeded(boolean timeOut) {
+        getFocusIndicator().showSuccess(timeOut);
+    }
+
+    @Override
+    public void onFocusFailed(boolean timeOut) {
+        getFocusIndicator().showFail(timeOut);
+    }
+
+    @Override
+    public void pauseFaceDetection() {
+    }
+
+    @Override
+    public void resumeFaceDetection() {
+    }
 }