49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
|
|
* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "Gesture.hpp"
|
|
#include "TouchInfo.hpp"
|
|
#include "GestureInfos.hpp"
|
|
#include "Base/Event.hpp"
|
|
|
|
namespace OpenVulkano::Input
|
|
{
|
|
class GesturePinch final : public Gesture
|
|
{
|
|
PinchInfo m_pinchInfo;
|
|
std::vector<TouchInfo> m_pendingTouches;
|
|
float m_initialDistance = 0, m_lastDistance;
|
|
bool m_paused = false;
|
|
|
|
void TryStart();
|
|
|
|
float LinearLength(std::vector<Math::Vector2f> const &points) const;
|
|
|
|
float CalculateDistance() const;
|
|
|
|
Math::Vector2f CalculateCenter() const;
|
|
|
|
public:
|
|
GesturePinch() : Gesture(TYPE_PINCH) {}
|
|
|
|
void Cancel() override;
|
|
|
|
void Reset() override
|
|
{
|
|
if (IsActive()) Cancel();
|
|
m_pendingTouches.clear();
|
|
m_initialDistance = 0;
|
|
}
|
|
|
|
void TouchDown(const Touch& touch) override;
|
|
void TouchUp(const Touch& touch) override;
|
|
void TouchMoved(const Touch& touch) override;
|
|
|
|
Event<GesturePinch*, PinchInfo&> OnPinchStarted, OnPinchMoved, OnPinchEnded;
|
|
};
|
|
} |