am 98a44df4: Merge change 8235 into donut (2c33bb19) · Commits · e / os / android_frameworks_base

core/java/android/view/SurfaceView.java

+27 −16

Original line number	Diff line number	Diff line
		@@ -142,6 +142,13 @@ public class SurfaceView extends View {
		final Rect mSurfaceFrame = new Rect();
		private Translator mTranslator;

		// A flag to indicate that the Canvas has to be scaled
		private boolean mScaleCanvas = false;
		// A flag to indicate that the Canvas is in use and being scaled.
		// This may remain to be false even if mScaleCanvas is true if the applicatio
		// does not use the canvas (such as GLSurfaceView, VideoView).
		private boolean mCanvasScaled = false;

		public SurfaceView(Context context) {
		super(context);
		setWillNotDraw(true);
		@@ -255,18 +262,21 @@ public class SurfaceView extends View {

		@Override
		public boolean dispatchTouchEvent(MotionEvent event) {
		// SurfaceView uses pre-scaled size unless fixed size is requested. This hook
		// scales the event back to the pre-scaled coordinates for such surface.
		if (mScaled) {
		if (mTranslator == null \|\| mCanvasScaled) {
		// Use the event as is if no scaling is required, or the surface's canvas
		// is scaled too.
		return super.dispatchTouchEvent(event);
		} else {
		// The surface is in native size, so we need to scale the event
		// back to native location.
		MotionEvent scaledBack = MotionEvent.obtain(event);
		mTranslator.translateEventInScreenToAppWindow(event);
		// scale back to original
		scaledBack.scale(mTranslator.applicationScale);
		try {
		return super.dispatchTouchEvent(scaledBack);
		} finally {
		scaledBack.recycle();
		}
		} else {
		return super.dispatchTouchEvent(event);
		}
		}

		@@ -292,8 +302,6 @@ public class SurfaceView extends View {
		mWindowType = type;
		}

		boolean mScaled = false;

		private void updateWindow(boolean force) {
		if (!mHaveFrame) {
		return;
		@@ -313,14 +321,15 @@ public class SurfaceView extends View {
		int myHeight = mRequestedHeight;
		if (myHeight <= 0) myHeight = getHeight();

		// Use original size if the app specified the size of the view,
		// and let the flinger to scale up.
		// Use requested size if the app specified the size of the view
		// and let the flinger to scale up. Otherwise, use the native size
		// (* appScale) and assume the application can handle it.
		if (mRequestedWidth <= 0 && mTranslator != null) {
		myWidth = (int) (myWidth * appScale + 0.5f);
		myHeight = (int) (myHeight * appScale + 0.5f);
		mScaled = true;
		mScaleCanvas = true;
		} else {
		mScaled = false;
		mScaleCanvas = false;
		}

		getLocationInWindow(mLocation);
		@@ -642,7 +651,9 @@ public class SurfaceView extends View {
		if (localLOGV) Log.i(TAG, "Returned canvas: " + c);
		if (c != null) {
		mLastLockTime = SystemClock.uptimeMillis();
		if (mScaled) {
		if (mScaleCanvas) {
		// When the canvas is scaled, don't scale back the event's location.
		mCanvasScaled = true;
		mSaveCount = c.save();
		mTranslator.translateCanvas(c);
		}
		@@ -668,7 +679,7 @@ public class SurfaceView extends View {
		}

		public void unlockCanvasAndPost(Canvas canvas) {
		if (mScaled) {
		if (mCanvasScaled) {
		canvas.restoreToCount(mSaveCount);
		}
		mSurface.unlockCanvasAndPost(canvas);