/** Draws the header of a task used for the window animation into a bitmap. */
Bitmap drawThumbnailTransitionBitmap(Task toTask, TaskViewTransform toTransform) {
if (toTransform != null && toTask.key != null) {
Bitmap thumbnail;
synchronized (mHeaderBarLock) {
int toHeaderWidth = (int) (mHeaderBar.getMeasuredWidth() * toTransform.scale);
int toHeaderHeight = (int) (mHeaderBar.getMeasuredHeight() * toTransform.scale);
thumbnail = Bitmap.createBitmap(toHeaderWidth, toHeaderHeight, Bitmap.Config.ARGB_8888);
if (Constants.DebugFlags.App.EnableTransitionThumbnailDebugMode) {
thumbnail.eraseColor(0xFFff0000);
} else {
Canvas c = new Canvas(thumbnail);
c.scale(toTransform.scale, toTransform.scale);
mHeaderBar.rebindToTask(toTask);
mHeaderBar.draw(c);
c.setBitmap(null);
}
}
return thumbnail.createAshmemBitmap();
}
return null;
}
