Refactoring common methods
Change-Id: Id6d3072dd3a6d7f54e9591abbeffd9bd51c7403d
diff --git a/src/com/android/launcher3/DropTarget.java b/src/com/android/launcher3/DropTarget.java
index 64f0ac8..7ede427 100644
--- a/src/com/android/launcher3/DropTarget.java
+++ b/src/com/android/launcher3/DropTarget.java
@@ -65,6 +65,29 @@
public DragObject() {
}
+
+ /**
+ * This is used to compute the visual center of the dragView. This point is then
+ * used to visualize drop locations and determine where to drop an item. The idea is that
+ * the visual center represents the user's interpretation of where the item is, and hence
+ * is the appropriate point to use when determining drop location.
+ */
+ public final float[] getVisualCenter(float[] recycle) {
+ final float res[] = (recycle == null) ? new float[2] : recycle;
+
+ // These represent the visual top and left of drag view if a dragRect was provided.
+ // If a dragRect was not provided, then they correspond to the actual view left and
+ // top, as the dragRect is in that case taken to be the entire dragView.
+ // R.dimen.dragViewOffsetY.
+ int left = x - xOffset;
+ int top = y - yOffset;
+
+ // In order to find the visual center, we shift by half the dragRect
+ res[0] = left + dragView.getDragRegion().width() / 2;
+ res[1] = top + dragView.getDragRegion().height() / 2;
+
+ return res;
+ }
}
public static class DragEnforcer implements DragController.DragListener {