Add getSurfaceRotation API to MotionEvent
Add an API to get the current rotation value of the transform of the
MotionEvent.
Bug: 207771136
Test: atest MotionEventTest
Change-Id: I05fb4455d0dcfc0de8c8564473ee8d43ac86c0bd
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index cb93c92..44487c3 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -24,6 +24,7 @@
#include <android-base/stringprintf.h>
#include <gui/constants.h>
+#include <input/DisplayViewport.h>
#include <input/Input.h>
#include <input/InputDevice.h>
#include <input/InputEventLabels.h>
@@ -506,6 +507,24 @@
mSamplePointerCoords.appendArray(pointerCoords, getPointerCount());
}
+int MotionEvent::getSurfaceRotation() const {
+ // The surface rotation is the rotation from the window's coordinate space to that of the
+ // display. Since the event's transform takes display space coordinates to window space, the
+ // returned surface rotation is the inverse of the rotation for the surface.
+ switch (mTransform.getOrientation()) {
+ case ui::Transform::ROT_0:
+ return DISPLAY_ORIENTATION_0;
+ case ui::Transform::ROT_90:
+ return DISPLAY_ORIENTATION_270;
+ case ui::Transform::ROT_180:
+ return DISPLAY_ORIENTATION_180;
+ case ui::Transform::ROT_270:
+ return DISPLAY_ORIENTATION_90;
+ default:
+ return -1;
+ }
+}
+
float MotionEvent::getXCursorPosition() const {
vec2 vals = mTransform.transform(getRawXCursorPosition(), getRawYCursorPosition());
return vals.x;