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authorRay <[email protected]>2021-09-10 15:19:12 +0200
committerRay <[email protected]>2021-09-10 15:19:12 +0200
commit803094f41f887c43852a09870d8d0e05ee5f687f (patch)
treed8aca4b26367f00f9e4a9a18732a5fa3d389420f /src
parent2c13e43c3224e8f5ff4ed0e254863a6e2a1f4f35 (diff)
downloadraylib-803094f41f887c43852a09870d8d0e05ee5f687f.tar.gz
raylib-803094f41f887c43852a09870d8d0e05ee5f687f.zip
REVIEWED: Touch input system #1975 #1960
- ADDED: `GetTouchPointCount()` to core module, removed from gestures module. - Support multiple touch points: `MAX_TOUCH_POINTS`.
Diffstat (limited to 'src')
-rw-r--r--src/config.h2
-rw-r--r--src/core.c201
-rw-r--r--src/gestures.h21
-rw-r--r--src/raylib.h2
4 files changed, 91 insertions, 135 deletions
diff --git a/src/config.h b/src/config.h
index b244add6..39f8252c 100644
--- a/src/config.h
+++ b/src/config.h
@@ -73,7 +73,7 @@
#define MAX_GAMEPADS 4 // Max number of gamepads supported
#define MAX_GAMEPAD_AXIS 8 // Max number of axis supported (per gamepad)
#define MAX_GAMEPAD_BUTTONS 32 // Max bumber of buttons supported (per gamepad)
-#define MAX_TOUCH_POINTS 10 // Maximum number of touch points supported
+#define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported
#define MAX_KEY_PRESSED_QUEUE 16 // Max number of characters in the key input queue
#define STORAGE_DATA_FILE "storage.data" // Automatic storage filename
diff --git a/src/core.c b/src/core.c
index 043f99e9..9a8d3c62 100644
--- a/src/core.c
+++ b/src/core.c
@@ -298,7 +298,7 @@
#define MAX_GAMEPAD_BUTTONS 32 // Maximum number of buttons supported (per gamepad)
#endif
#ifndef MAX_TOUCH_POINTS
- #define MAX_TOUCH_POINTS 10 // Maximum number of touch points supported
+ #define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported
#endif
#ifndef MAX_KEY_PRESSED_QUEUE
#define MAX_KEY_PRESSED_QUEUE 16 // Maximum number of keys in the key input queue
@@ -443,6 +443,8 @@ typedef struct CoreData {
#endif
} Mouse;
struct {
+ int pointCount; // Number of touch points active
+ int pointId[MAX_TOUCH_POINTS]; // Point identifiers
Vector2 position[MAX_TOUCH_POINTS]; // Touch position on screen
char currentTouchState[MAX_TOUCH_POINTS]; // Registers current touch state
char previousTouchState[MAX_TOUCH_POINTS]; // Registers previous touch state
@@ -3564,6 +3566,12 @@ Vector2 GetTouchPosition(int index)
return position;
}
+// Get number of touch points
+int GetTouchPointCount(void)
+{
+ return CORE.Input.Touch.pointCount;
+}
+
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
@@ -4997,7 +5005,7 @@ static void MouseButtonCallback(GLFWwindow *window, int button, int action, int
// but future releases may add more actions (i.e. GLFW_REPEAT)
CORE.Input.Mouse.currentButtonState[button] = action;
-#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
+#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES) // PLATFORM_DESKTOP
// Process mouse events as touches to be able to use mouse-gestures
GestureEvent gestureEvent = { 0 };
@@ -5008,7 +5016,7 @@ static void MouseButtonCallback(GLFWwindow *window, int button, int action, int
// NOTE: TOUCH_MOVE event is registered in MouseCursorPosCallback()
// Assign a pointer ID
- gestureEvent.pointerId[0] = 0;
+ gestureEvent.pointId[0] = 0;
// Register touch points count
gestureEvent.pointCount = 1;
@@ -5032,14 +5040,14 @@ static void MouseCursorPosCallback(GLFWwindow *window, double x, double y)
CORE.Input.Mouse.currentPosition.y = (float)y;
CORE.Input.Touch.position[0] = CORE.Input.Mouse.currentPosition;
-#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
+#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES) // PLATFORM_DESKTOP
// Process mouse events as touches to be able to use mouse-gestures
GestureEvent gestureEvent = { 0 };
gestureEvent.touchAction = TOUCH_MOVE;
// Assign a pointer ID
- gestureEvent.pointerId[0] = 0;
+ gestureEvent.pointId[0] = 0;
// Register touch points count
gestureEvent.pointCount = 1;
@@ -5271,64 +5279,47 @@ static int32_t AndroidInputCallback(struct android_app *app, AInputEvent *event)
return 0;
}
-
- CORE.Input.Touch.position[0].x = AMotionEvent_getX(event, 0);
- CORE.Input.Touch.position[0].y = AMotionEvent_getY(event, 0);
-
- unsigned int touchCount = AMotionEvent_getPointerCount(event);
- for (int i = 1; i < touchCount && i < MAX_TOUCH_POINTS; i++)
+
+ // Register touch points count
+ CORE.Input.Touch.pointCount = AMotionEvent_getPointerCount(event);
+
+ for (int i = 0; (i < CORE.Input.Touch.pointCount) && (i < MAX_TOUCH_POINTS); i++)
{
- CORE.Input.Touch.position[i].x = AMotionEvent_getX(event, i);
- CORE.Input.Touch.position[i].y = AMotionEvent_getY(event, i);
+ // Register touch points id
+ CORE.Input.Touch.pointId[i] = AMotionEvent_getPointerId(event, i);
+
+ // Register touch points position
+ CORE.Input.Touch.position[i] = (Vector2){ AMotionEvent_getX(event, i), AMotionEvent_getY(event, i) };
+
+ // Normalize gestureEvent.position[x] for screenWidth and screenHeight
+ gestureEvent.position[i].x /= (float)GetScreenWidth();
+ gestureEvent.position[i].y /= (float)GetScreenHeight();
}
int32_t action = AMotionEvent_getAction(event);
unsigned int flags = action & AMOTION_EVENT_ACTION_MASK;
- if (flags == AMOTION_EVENT_ACTION_DOWN || flags == AMOTION_EVENT_ACTION_MOVE)
- {
- CORE.Input.Touch.currentTouchState[MOUSE_BUTTON_LEFT] = 1;
- }
- else if (flags == AMOTION_EVENT_ACTION_UP)
- {
- CORE.Input.Touch.currentTouchState[MOUSE_BUTTON_LEFT] = 0;
- }
+ if (flags == AMOTION_EVENT_ACTION_DOWN || flags == AMOTION_EVENT_ACTION_MOVE) CORE.Input.Touch.currentTouchState[MOUSE_BUTTON_LEFT] = 1;
+ else if (flags == AMOTION_EVENT_ACTION_UP) CORE.Input.Touch.currentTouchState[MOUSE_BUTTON_LEFT] = 0;
-#if defined(SUPPORT_GESTURES_SYSTEM)
+#if defined(SUPPORT_GESTURES_SYSTEM) // PLATFORM_ANDROID
GestureEvent gestureEvent = { 0 };
+
+ gestureEvent.pointCount = CORE.Input.Touch.pointCount;
// Register touch actions
if (flags == AMOTION_EVENT_ACTION_DOWN) gestureEvent.touchAction = TOUCH_DOWN;
else if (flags == AMOTION_EVENT_ACTION_UP) gestureEvent.touchAction = TOUCH_UP;
else if (flags == AMOTION_EVENT_ACTION_MOVE) gestureEvent.touchAction = TOUCH_MOVE;
- // Register touch points count
- // NOTE: Documentation says pointerCount is Always >= 1,
- // but in practice it can be 0 or over a million
- gestureEvent.pointCount = AMotionEvent_getPointerCount(event);
-
- // Only enable gestures for 1-3 touch points
- if ((gestureEvent.pointCount > 0) && (gestureEvent.pointCount < 4))
+ for (int i = 0; (i < gestureEvent.pointCount) && (i < MAX_TOUCH_POINTS); i++)
{
- // Register touch points id
- // NOTE: Only two points registered
- gestureEvent.pointerId[0] = AMotionEvent_getPointerId(event, 0);
- gestureEvent.pointerId[1] = AMotionEvent_getPointerId(event, 1);
-
- // Register touch points position
- gestureEvent.position[0] = (Vector2){ AMotionEvent_getX(event, 0), AMotionEvent_getY(event, 0) };
- gestureEvent.position[1] = (Vector2){ AMotionEvent_getX(event, 1), AMotionEvent_getY(event, 1) };
-
- // Normalize gestureEvent.position[x] for screenWidth and screenHeight
- gestureEvent.position[0].x /= (float)GetScreenWidth();
- gestureEvent.position[0].y /= (float)GetScreenHeight();
-
- gestureEvent.position[1].x /= (float)GetScreenWidth();
- gestureEvent.position[1].y /= (float)GetScreenHeight();
-
- // Gesture data is sent to gestures system for processing
- ProcessGestureEvent(gestureEvent);
+ gestureEvent.pointId[i] = CORE.Input.Touch.pointId[i];
+ gestureEvent.position[i] = CORE.Input.Touch.position[i];
}
+
+ // Gesture data is sent to gestures system for processing
+ ProcessGestureEvent(gestureEvent);
#endif
return 0;
@@ -5346,64 +5337,50 @@ static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent
// Register touch input events
static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
{
- for (int i = 0; i < touchEvent->numTouches; i++)
+ // Register touch points count
+ CORE.Input.Touch.pointCount = touchEvent->numTouches;
+
+ double canvasWidth = 0.0;
+ double canvasHeight = 0.0;
+ // NOTE: emscripten_get_canvas_element_size() returns canvas.width and canvas.height but
+ // we are looking for actual CSS size: canvas.style.width and canvas.style.height
+ //EMSCRIPTEN_RESULT res = emscripten_get_canvas_element_size("#canvas", &canvasWidth, &canvasHeight);
+ emscripten_get_element_css_size("#canvas", &canvasWidth, &canvasHeight);
+
+ for (int i = 0; (i < CORE.Input.Touch.pointCount) && (i < MAX_TOUCH_POINTS); i++)
{
+ // Register touch points id
+ CORE.Input.Touch.pointId[i] = touchEvent->touches[i].identifier;
+
+ // Register touch points position
+ CORE.Input.Touch.position[i] = (Vector2){ touchEvent->touches[i].targetX, touchEvent->touches[i].targetY };
+
+ // Normalize gestureEvent.position[x] for CORE.Window.screen.width and CORE.Window.screen.height
+ CORE.Input.Touch.position[i].x *= ((float)GetScreenWidth()/(float)canvasWidth);
+ CORE.Input.Touch.position[i].y *= ((float)GetScreenHeight()/(float)canvasHeight);
+
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) CORE.Input.Touch.currentTouchState[i] = 1;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) CORE.Input.Touch.currentTouchState[i] = 0;
}
-#if defined(SUPPORT_GESTURES_SYSTEM)
+#if defined(SUPPORT_GESTURES_SYSTEM) // PLATFORM_WEB
GestureEvent gestureEvent = { 0 };
+
+ gestureEvent.pointCount = CORE.Input.Touch.pointCount;
// Register touch actions
if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) gestureEvent.touchAction = TOUCH_DOWN;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) gestureEvent.touchAction = TOUCH_UP;
else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.touchAction = TOUCH_MOVE;
- // Register touch points count
- gestureEvent.pointCount = touchEvent->numTouches;
-
- // Register touch points id
- gestureEvent.pointerId[0] = touchEvent->touches[0].identifier;
- gestureEvent.pointerId[1] = touchEvent->touches[1].identifier;
-
- // Register touch points position
- // NOTE: Only two points registered
- gestureEvent.position[0] = (Vector2){ touchEvent->touches[0].targetX, touchEvent->touches[0].targetY };
- gestureEvent.position[1] = (Vector2){ touchEvent->touches[1].targetX, touchEvent->touches[1].targetY };
-
- double canvasWidth, canvasHeight;
- // NOTE: emscripten_get_canvas_element_size() returns canvas.width and canvas.height but
- // we are looking for actual CSS size: canvas.style.width and canvas.style.height
- //EMSCRIPTEN_RESULT res = emscripten_get_canvas_element_size("#canvas", &canvasWidth, &canvasHeight);
- emscripten_get_element_css_size("#canvas", &canvasWidth, &canvasHeight);
-
- // Normalize gestureEvent.position[x] for CORE.Window.screen.width and CORE.Window.screen.height
- gestureEvent.position[0].x *= ((float)GetScreenWidth()/(float)canvasWidth);
- gestureEvent.position[0].y *= ((float)GetScreenHeight()/(float)canvasHeight);
- gestureEvent.position[1].x *= ((float)GetScreenWidth()/(float)canvasWidth);
- gestureEvent.position[1].y *= ((float)GetScreenHeight()/(float)canvasHeight);
-
- CORE.Input.Touch.position[0] = gestureEvent.position[0];
- CORE.Input.Touch.position[1] = gestureEvent.position[1];
+ for (int i = 0; (i < gestureEvent.pointCount) && (i < MAX_TOUCH_POINTS); i++)
+ {
+ gestureEvent.pointId[i] = CORE.Input.Touch.pointId[i];
+ gestureEvent.position[i] = CORE.Input.Touch.position[i];
+ }
// Gesture data is sent to gestures system for processing
ProcessGestureEvent(gestureEvent);
-#else
- // Support only simple touch position
- if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART)
- {
- // Get first touch position
- CORE.Input.Touch.position[0] = (Vector2){ touchEvent->touches[0].targetX, touchEvent->touches[0].targetY };
-
- double canvasWidth, canvasHeight;
- //EMSCRIPTEN_RESULT res = emscripten_get_canvas_element_size("#canvas", &canvasWidth, &canvasHeight);
- emscripten_get_element_css_size("#canvas", &canvasWidth, &canvasHeight);
-
- // Normalize gestureEvent.position[x] for screenWidth and screenHeight
- CORE.Input.Touch.position[0].x *= ((float)GetScreenWidth()/(float)canvasWidth);
- CORE.Input.Touch.position[0].y *= ((float)GetScreenHeight()/(float)canvasHeight);
- }
#endif
return 1;
@@ -5923,8 +5900,8 @@ static void *EventThread(void *arg)
struct input_event event = { 0 };
InputEventWorker *worker = (InputEventWorker *)arg;
- int touchAction = -1;
- bool gestureUpdate = false;
+ int touchAction = -1; // 0-TOUCH_UP, 1-TOUCH_DOWN, 2-TOUCH_MOVE
+ bool gestureUpdate = false; // Flag to note gestures require to update
while (!CORE.Window.shouldClose)
{
@@ -5939,10 +5916,8 @@ static void *EventThread(void *arg)
CORE.Input.Mouse.currentPosition.x += event.value;
CORE.Input.Touch.position[0].x = CORE.Input.Mouse.currentPosition.x;
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_MOVE;
+ touchAction = 2; // TOUCH_MOVE
gestureUpdate = true;
- #endif
}
if (event.code == REL_Y)
@@ -5950,10 +5925,8 @@ static void *EventThread(void *arg)
CORE.Input.Mouse.currentPosition.y += event.value;
CORE.Input.Touch.position[0].y = CORE.Input.Mouse.currentPosition.y;
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_MOVE;
+ touchAction = 2; // TOUCH_MOVE
gestureUpdate = true;
- #endif
}
if (event.code == REL_WHEEL) CORE.Input.Mouse.currentWheelMove += event.value;
@@ -5968,10 +5941,8 @@ static void *EventThread(void *arg)
CORE.Input.Mouse.currentPosition.x = (event.value - worker->absRange.x)*CORE.Window.screen.width/worker->absRange.width; // Scale acording to absRange
CORE.Input.Touch.position[0].x = (event.value - worker->absRange.x)*CORE.Window.screen.width/worker->absRange.width; // Scale acording to absRange
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_MOVE;
+ touchAction = 2; // TOUCH_MOVE
gestureUpdate = true;
- #endif
}
if (event.code == ABS_Y)
@@ -5979,10 +5950,8 @@ static void *EventThread(void *arg)
CORE.Input.Mouse.currentPosition.y = (event.value - worker->absRange.y)*CORE.Window.screen.height/worker->absRange.height; // Scale acording to absRange
CORE.Input.Touch.position[0].y = (event.value - worker->absRange.y)*CORE.Window.screen.height/worker->absRange.height; // Scale acording to absRange
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_MOVE;
+ touchAction = 2; // TOUCH_MOVE
gestureUpdate = true;
- #endif
}
// Multitouch movement
@@ -6017,20 +5986,16 @@ static void *EventThread(void *arg)
{
CORE.Input.Mouse.currentButtonStateEvdev[MOUSE_BUTTON_LEFT] = 0;
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_UP;
+ touchAction = 0; // TOUCH_UP
gestureUpdate = true;
- #endif
}
if (event.value && !previousMouseLeftButtonState)
{
CORE.Input.Mouse.currentButtonStateEvdev[MOUSE_BUTTON_LEFT] = 1;
- #if defined(SUPPORT_GESTURES_SYSTEM)
- touchAction = TOUCH_DOWN;
+ touchAction = 1; // TOUCH_DOWN
gestureUpdate = true;
- #endif
}
}
@@ -6044,11 +6009,9 @@ static void *EventThread(void *arg)
{
CORE.Input.Mouse.currentButtonStateEvdev[MOUSE_BUTTON_LEFT] = event.value;
- #if defined(SUPPORT_GESTURES_SYSTEM)
- if (event.value > 0) touchAction = TOUCH_DOWN;
- else touchAction = TOUCH_UP;
+ if (event.value > 0) touchAction = 1; // TOUCH_DOWN
+ else touchAction = 0; // TOUCH_UP
gestureUpdate = true;
- #endif
}
if (event.code == BTN_RIGHT) CORE.Input.Mouse.currentButtonStateEvdev[MOUSE_BUTTON_RIGHT] = event.value;
@@ -6069,7 +6032,7 @@ static void *EventThread(void *arg)
if (CORE.Input.Mouse.currentPosition.y > CORE.Window.screen.height/CORE.Input.Mouse.scale.y) CORE.Input.Mouse.currentPosition.y = CORE.Window.screen.height/CORE.Input.Mouse.scale.y;
}
-#if defined(SUPPORT_GESTURES_SYSTEM)
+#if defined(SUPPORT_GESTURES_SYSTEM) // PLATFORM_RPI, PLATFORM_DRM
if (gestureUpdate)
{
GestureEvent gestureEvent = { 0 };
@@ -6082,10 +6045,10 @@ static void *EventThread(void *arg)
if (CORE.Input.Touch.position[2].x >= 0) gestureEvent.pointCount++;
if (CORE.Input.Touch.position[3].x >= 0) gestureEvent.pointCount++;
- gestureEvent.pointerId[0] = 0;
- gestureEvent.pointerId[1] = 1;
- gestureEvent.pointerId[2] = 2;
- gestureEvent.pointerId[3] = 3;
+ gestureEvent.pointId[0] = 0;
+ gestureEvent.pointId[1] = 1;
+ gestureEvent.pointId[2] = 2;
+ gestureEvent.pointId[3] = 3;
gestureEvent.position[0] = CORE.Input.Touch.position[0];
gestureEvent.position[1] = CORE.Input.Touch.position[1];
diff --git a/src/gestures.h b/src/gestures.h
index 09adffd0..c106018c 100644
--- a/src/gestures.h
+++ b/src/gestures.h
@@ -53,7 +53,9 @@
//----------------------------------------------------------------------------------
// Defines and Macros
//----------------------------------------------------------------------------------
-//...
+#ifndef MAX_TOUCH_POINTS
+ #define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported
+#endif
//----------------------------------------------------------------------------------
// Types and Structures Definition
@@ -91,12 +93,11 @@
typedef enum { TOUCH_UP, TOUCH_DOWN, TOUCH_MOVE } TouchAction;
// Gesture event
-// NOTE: MAX_TOUCH_POINTS fixed to 4
typedef struct {
int touchAction;
int pointCount;
- int pointerId[4];
- Vector2 position[4];
+ int pointId[MAX_TOUCH_POINTS];
+ Vector2 position[MAX_TOUCH_POINTS];
} GestureEvent;
//----------------------------------------------------------------------------------
@@ -282,7 +283,7 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Touch.upPosition = GESTURES.Touch.downPositionA;
GESTURES.Touch.eventTime = GetCurrentTime();
- GESTURES.Touch.firstId = event.pointerId[0];
+ GESTURES.Touch.firstId = event.pointId[0];
GESTURES.Drag.vector = (Vector2){ 0.0f, 0.0f };
}
@@ -297,7 +298,7 @@ void ProcessGestureEvent(GestureEvent event)
GESTURES.Swipe.start = false;
// Detect GESTURE_SWIPE
- if ((GESTURES.Drag.intensity > FORCE_TO_SWIPE) && (GESTURES.Touch.firstId == event.pointerId[0]))
+ if ((GESTURES.Drag.intensity > FORCE_TO_SWIPE) && (GESTURES.Touch.firstId == event.pointId[0]))
{
// NOTE: Angle should be inverted in Y
GESTURES.Drag.angle = 360.0f - Vector2Angle(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition);
@@ -430,14 +431,6 @@ void UpdateGestures(void)
}
}
-// Get number of touch points
-int GetTouchPointCount(void)
-{
- // NOTE: point count is calculated when ProcessGestureEvent(GestureEvent event) is called
-
- return GESTURES.Touch.pointCount;
-}
-
// Get latest detected gesture
int GetGestureDetected(void)
{
diff --git a/src/raylib.h b/src/raylib.h
index 9e46e842..839075b3 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -1104,6 +1104,7 @@ RLAPI void SetMouseCursor(int cursor); // Set mouse curso
RLAPI int GetTouchX(void); // Get touch position X for touch point 0 (relative to screen size)
RLAPI int GetTouchY(void); // Get touch position Y for touch point 0 (relative to screen size)
RLAPI Vector2 GetTouchPosition(int index); // Get touch position XY for a touch point index (relative to screen size)
+RLAPI int GetTouchPointCount(void); // Get number of touch points
//------------------------------------------------------------------------------------
// Gestures and Touch Handling Functions (Module: gestures)
@@ -1111,7 +1112,6 @@ RLAPI Vector2 GetTouchPosition(int index); // Get touch posit
RLAPI void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags
RLAPI bool IsGestureDetected(int gesture); // Check if a gesture have been detected
RLAPI int GetGestureDetected(void); // Get latest detected gesture
-RLAPI int GetTouchPointCount(void); // Get touch points count
RLAPI float GetGestureHoldDuration(void); // Get gesture hold time in milliseconds
RLAPI Vector2 GetGestureDragVector(void); // Get gesture drag vector
RLAPI float GetGestureDragAngle(void); // Get gesture drag angle