Commit 6008ee02 authored by ylwu's avatar ylwu

Merge branch 'master' of github.com:mit-cml/app-inventor-private into videocapture

parents f3434c9d 420bcabe
......@@ -59,6 +59,7 @@ public class ImageSprite extends Sprite {
private Bitmap unrotatedBitmap;
private Bitmap rotatedBitmap;
private Bitmap scaledBitmap;
private BitmapDrawable rotatedDrawable;
private double cachedRotationHeading;
......@@ -95,15 +96,23 @@ public class ImageSprite extends Sprite {
// Rotate around the center of the sprite image (w/2, h/2)
// TODO(halabelson): Add a way for the user to specify the center of rotation.
mat.setRotate((float) -Heading(), w / 2, h / 2);
// We must scale the unrotated Bitmap to be the user specified size before
// rotating.
if (w != unrotatedBitmap.getWidth() || h != unrotatedBitmap.getHeight()) {
scaledBitmap = Bitmap.createScaledBitmap(unrotatedBitmap, w, h, true);
}
else {
scaledBitmap = unrotatedBitmap;
}
// Next create the rotated bitmap
// Careful: We use getWidth and getHeight of the unrotated bitmap, rather than the
// Width and Height of the sprite. Doing the latter produces an illegal argument
// exception in creating the bitmap, if the user sets the Width or Height of the
// sprite to be larger than the image size.
rotatedBitmap = Bitmap.createBitmap(
unrotatedBitmap,
scaledBitmap,
0, 0,
unrotatedBitmap.getWidth(), unrotatedBitmap.getHeight(),
scaledBitmap.getWidth(), scaledBitmap.getHeight(),
mat, true);
// make a drawable for the rotated image and cache the heading
rotatedDrawable = new BitmapDrawable(rotatedBitmap);
......
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