diff options
Diffstat (limited to 'include/ui/Input.h')
| -rw-r--r-- | include/ui/Input.h | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/include/ui/Input.h b/include/ui/Input.h index e9cacf4..8e8b61b 100644 --- a/include/ui/Input.h +++ b/include/ui/Input.h @@ -311,6 +311,13 @@ public: inline int32_t getAction() const { return mAction; } + inline int32_t getActionMasked() const { return mAction & AMOTION_EVENT_ACTION_MASK; } + + inline int32_t getActionIndex() const { + return (mAction & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) + >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT; + } + inline void setAction(int32_t action) { mAction = action; } inline int32_t getFlags() const { return mFlags; } @@ -458,6 +465,8 @@ public: AMOTION_EVENT_AXIS_ORIENTATION, pointerIndex, historicalIndex); } + ssize_t findPointerIndex(int32_t pointerId) const; + void initialize( int32_t deviceId, int32_t source, @@ -551,8 +560,7 @@ private: }; /* - * Calculates the velocity of pointer motions over time. - * Uses essentially the same algorithm as android.view.VelocityTracker. + * Calculates the velocity of pointer movements over time. */ class VelocityTracker { public: @@ -565,6 +573,11 @@ public: // Resets the velocity tracker state. void clear(); + // Resets the velocity tracker state for specific pointers. + // Call this method when some pointers have changed and may be reusing + // an id that was assigned to a different pointer earlier. + void clearPointers(BitSet32 idBits); + // Adds movement information for a set of pointers. // The idBits bitfield specifies the pointer ids of the pointers whose positions // are included in the movement. @@ -572,11 +585,20 @@ public: // increasing id. Its size should be equal to the number of one bits in idBits. void addMovement(nsecs_t eventTime, BitSet32 idBits, const Position* positions); + // Adds movement information for all pointers in a MotionEvent, including historical samples. + void addMovement(const MotionEvent* event); + // Gets the velocity of the specified pointer id in position units per second. // Returns false and sets the velocity components to zero if there is no movement // information for the pointer. bool getVelocity(uint32_t id, float* outVx, float* outVy) const; + // Gets the active pointer id, or -1 if none. + inline int32_t getActivePointerId() const { return mActivePointerId; } + + // Gets a bitset containing all pointer ids from the most recent movement. + inline BitSet32 getCurrentPointerIdBits() const { return mMovements[mIndex].idBits; } + private: // Number of samples to keep. static const uint32_t HISTORY_SIZE = 10; @@ -585,7 +607,7 @@ private: static const nsecs_t MAX_AGE = 200 * 1000000; // 200 ms // The minimum duration between samples when estimating velocity. - static const nsecs_t MIN_DURATION = 5 * 1000000; // 5 ms + static const nsecs_t MIN_DURATION = 10 * 1000000; // 10 ms struct Movement { nsecs_t eventTime; @@ -595,6 +617,7 @@ private: uint32_t mIndex; Movement mMovements[HISTORY_SIZE]; + int32_t mActivePointerId; }; /* |