Fixed a crash when an image with an odd width/height was selected

Due to an internal rounding in the renderer, the calculations
for the cropping area could be slightly offset, getting out
of the image boundaries. I sanitized the rect by ensuring they
are inside the image.

Bug: 12174629
Change-Id: Icc37790732ddd479631b898b23c05501d2dcd5be

1 files changed, 7 insertions, 0 deletions

diff --git a/packages/WallpaperCropper/src/com/android/wallpapercropper/WallpaperCropActivity.java b/packages/WallpaperCropper/src/com/android/wallpapercropper/WallpaperCropActivity.java
index b9b87b1..e45b98c 100644
--- a/packages/WallpaperCropper/src/com/android/wallpapercropper/WallpaperCropActivity.java
+++ b/packages/WallpaperCropper/src/com/android/wallpapercropper/WallpaperCropActivity.java
@@ -340,6 +340,13 @@ public class WallpaperCropActivity extends Activity {
                 getWindowManager());
         // Get the crop
         RectF cropRect = mCropView.getCrop();
+
+        // Due to rounding errors in the cropview renderer the edges can be slightly offset
+        // therefore we ensure that the boundaries are sanely defined
+        cropRect.left = Math.max(0, cropRect.left);
+        cropRect.right = Math.min(mCropView.getWidth(), cropRect.right);
+        cropRect.top = Math.max(0, cropRect.top);
+        cropRect.bottom = Math.min(mCropView.getHeight(), cropRect.bottom);
         int cropRotation = mCropView.getImageRotation();
         float cropScale = mCropView.getWidth() / (float) cropRect.width();