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80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/*
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* InputHandler.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "../lib/Rect.h"
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enum class EUserEvent;
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enum class MouseButton;
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union SDL_Event;
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class InputSourceMouse;
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class InputSourceKeyboard;
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class InputSourceTouch;
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class InputSourceText;
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class UserEventHandler;
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class InputHandler
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{
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std::vector<SDL_Event> eventsQueue;
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boost::mutex eventsMutex;
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Point cursorPosition;
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void preprocessEvent(const SDL_Event & event);
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void handleCurrentEvent(const SDL_Event & current);
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std::unique_ptr<InputSourceMouse> mouseHandler;
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std::unique_ptr<InputSourceKeyboard> keyboardHandler;
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std::unique_ptr<InputSourceTouch> fingerHandler;
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std::unique_ptr<InputSourceText> textHandler;
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std::unique_ptr<UserEventHandler> userHandler;
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public:
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InputHandler();
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~InputHandler();
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/// Fetches events from SDL input system and prepares them for processing
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void fetchEvents();
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/// Performs actual processing and dispatching of previously fetched events
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void processEvents();
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/// drops all incoming events without processing them
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/// returns true if input event has been found
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bool ignoreEventsUntilInput();
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/// Moves cursor by specified distance
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void moveCursorPosition(const Point & distance);
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/// Moves cursor to a specified position
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void setCursorPosition(const Point & position);
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/// Initiates text input in selected area, potentially creating IME popup (mobile systems only at the moment)
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void startTextInput(const Rect & where);
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/// Ends any existing text input state
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void stopTextInput();
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/// returns true if system has active touchscreen
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bool hasTouchInputDevice() const;
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/// Generates new user event that will be processed on next frame
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void pushUserEvent(EUserEvent usercode, void * userdata);
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/// Returns current position of cursor, in VCMI logical screen coordinates
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const Point & getCursorPosition() const;
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/// returns true if chosen keyboard key is currently pressed down
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bool isKeyboardAltDown() const;
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bool isKeyboardCtrlDown() const;
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bool isKeyboardShiftDown() const;
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};
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