diff options
Diffstat (limited to 'java/com/android/contacts/common/util/BitmapUtil.java')
| -rw-r--r-- | java/com/android/contacts/common/util/BitmapUtil.java | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/java/com/android/contacts/common/util/BitmapUtil.java b/java/com/android/contacts/common/util/BitmapUtil.java index 51f65f280..20f916a3f 100644 --- a/java/com/android/contacts/common/util/BitmapUtil.java +++ b/java/com/android/contacts/common/util/BitmapUtil.java @@ -24,6 +24,8 @@ import android.graphics.PorterDuff.Mode; import android.graphics.PorterDuffXfermode; import android.graphics.Rect; import android.graphics.RectF; +import android.graphics.drawable.BitmapDrawable; +import android.graphics.drawable.Drawable; /** Provides static functions to decode bitmaps at the optimal size */ public class BitmapUtil { @@ -89,6 +91,30 @@ public class BitmapUtil { } /** + * Retrieves a copy of the specified drawable resource, rotated by a specified angle. + * + * @param resources The current resources. + * @param resourceId The resource ID of the drawable to rotate. + * @param angle The angle of rotation. + * @return Rotated drawable. + */ + public static Drawable getRotatedDrawable( + android.content.res.Resources resources, int resourceId, float angle) { + + // Get the original drawable and make a copy which will be rotated. + Bitmap original = BitmapFactory.decodeResource(resources, resourceId); + Bitmap rotated = + Bitmap.createBitmap(original.getWidth(), original.getHeight(), Bitmap.Config.ARGB_8888); + + // Perform the rotation. + Canvas tempCanvas = new Canvas(rotated); + tempCanvas.rotate(angle, original.getWidth() / 2, original.getHeight() / 2); + tempCanvas.drawBitmap(original, 0, 0, null); + + return new BitmapDrawable(resources, rotated); + } + + /** * Given an input bitmap, scales it to the given width/height and makes it round. * * @param input {@link Bitmap} to scale and crop |