vladislavbelov
ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
92 lines
2.0 KiB
C++
92 lines
2.0 KiB
C++
/* Copyright (C) 2012 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_TOUCHINPUT
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#define INCLUDED_TOUCHINPUT
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#include "lib/input.h"
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#include "maths/Vector2D.h"
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#include "maths/Vector3D.h"
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/**
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* Maps touch events (e.g. on Android touchscreen devices) onto mouse events
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* and camera movement.
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*/
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class CTouchInput
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{
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public:
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CTouchInput();
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~CTouchInput();
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/**
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* Returns whether the touch input mode is enabled for this device.
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*/
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bool IsEnabled();
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InReaction HandleEvent(const SDL_Event_* ev);
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/**
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* Should be called once per frame to perform updates.
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*/
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void Frame();
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private:
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void OnFingerDown(int id, int x, int y);
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void OnFingerUp(int id, int x, int y);
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void OnFingerMotion(int id, int x, int y);
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// Mouse emulation state:
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enum
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{
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MOUSE_INACTIVE,
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MOUSE_ACTIVATING,
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MOUSE_ACTIVE_UP,
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MOUSE_ACTIVE_DOWN
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};
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static const size_t MAX_MOUSE = 2;
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int m_MouseEmulateState[MAX_MOUSE];
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CVector2D m_MouseEmulateDownPos[MAX_MOUSE];
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// Current finger state:
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static const size_t MAX_FINGERS = 2;
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bool m_Down[MAX_FINGERS];
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CVector2D m_Pos[MAX_FINGERS];
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CVector2D m_Prev[MAX_FINGERS];
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enum
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{
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STATE_INACTIVE,
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STATE_FIRST_TOUCH,
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STATE_PANNING,
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STATE_ZOOMING
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};
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int m_State;
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double m_FirstTouchTime;
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CVector2D m_FirstTouchPos;
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CVector3D m_PanFocus;
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float m_PanDist;
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};
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extern CTouchInput g_TouchInput;
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extern InReaction touch_input_handler(const SDL_Event_* ev);
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#endif // INCLUDED_TOUCHINPUT
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