mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-12-13 16:45:46 +00:00
52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
#include "input/input_state.h"
|
|
#include "math/geom2d.h"
|
|
|
|
// Mainly for detecting (multi-)touch gestures but also useable for left button mouse dragging etc.
|
|
// Currently only supports simple scroll-drags with inertia.
|
|
// TODO: Two-finger zoom/rotate etc.
|
|
|
|
enum Gesture {
|
|
GESTURE_DRAG_VERTICAL = 1,
|
|
GESTURE_DRAG_HORIZONTAL = 2,
|
|
GESTURE_TWO_FINGER_ZOOM = 4,
|
|
GESTURE_TWO_FINGER_ZOOM_ROTATE = 8,
|
|
};
|
|
|
|
// May track multiple gestures at the same time. You simply call GetGestureInfo
|
|
// with the gesture you are interested in.
|
|
class GestureDetector {
|
|
public:
|
|
GestureDetector();
|
|
TouchInput Update(const TouchInput &touch, const Bounds &bounds);
|
|
void UpdateFrame();
|
|
bool IsGestureActive(Gesture gesture) const;
|
|
bool GetGestureInfo(Gesture gesture, float info[4]) const;
|
|
|
|
private:
|
|
// jazzhands!
|
|
enum Locals {
|
|
MAX_PTRS = 10,
|
|
};
|
|
|
|
struct Pointer {
|
|
bool down;
|
|
double downTime;
|
|
float lastX;
|
|
float lastY;
|
|
float downX;
|
|
float downY;
|
|
float deltaX;
|
|
float deltaY;
|
|
float distanceX;
|
|
float distanceY;
|
|
};
|
|
|
|
Pointer pointers[MAX_PTRS];
|
|
|
|
uint32_t active_;
|
|
|
|
// For inertia estimation
|
|
float estimatedInertiaX_;
|
|
float estimatedInertiaY_;
|
|
};
|