fcn::sdl2::Input Class Reference

#include <input.hpp>

Inheritance diagram for fcn::sdl2::Input:

Public Member Functions
void	_pollInput () override
KeyInput	dequeueKeyInput () override
MouseInput	dequeueMouseInput () override
	Input ()
bool	isKeyQueueEmpty () override
bool	isMouseQueueEmpty () override
virtual void	pushInput (SDL_Event event)
Public Member Functions inherited from fcn::Input
	Input (Input &&)=delete
	Input (Input const &)=delete
Input &	operator= (Input &&)=delete
Input &	operator= (Input const &)=delete

Protected Member Functions
MouseInput::Button	convertMouseButton (int button)
int	convertSDLEventToFifechanKeyValue (SDL_Event event)

Protected Attributes
std::queue< KeyInput >	mKeyInputQueue
bool	mMouseDown {false}
std::queue< MouseInput >	mMouseInputQueue
bool	mMouseInWindow {false}

Detailed Description

SDL2-specific implementation of Input.

Definition at line 30 of file backends/sdl2/input.hpp.

Constructor & Destructor Documentation

Input()

fcn::sdl2::Input::Input

(

)

Constructor.

Definition at line 15 of file input.cpp.

References mMouseInWindow.

Member Function Documentation

_pollInput()

void fcn::sdl2::Input::_pollInput ( )

inlineoverridevirtual

Polls all input.

It exists for input driver compatibility. If you only use SDL and plan sticking with SDL you can safely ignore this function as it in the SDL case does nothing.

Implements fcn::Input.

Definition at line 51 of file backends/sdl2/input.hpp.

convertMouseButton()

MouseInput::Button fcn::sdl2::Input::convertMouseButton ( int button )

protected

Converts a mouse button from SDL to a FifeGUI mouse button.

Parameters

button

an SDL mouse button.

Returns

a FifeGUI mouse button.

Definition at line 205 of file input.cpp.

Referenced by pushInput().

convertSDLEventToFifechanKeyValue()

int fcn::sdl2::Input::convertSDLEventToFifechanKeyValue ( SDL_Event event )

protected

Converts an SDL event to a FifeGUI key value.

Parameters

event

The SDL event to convert.

Returns

A FifeGUI key value. -1 if no conversion took place.

See also

Key

Definition at line 228 of file input.cpp.

Referenced by pushInput().

dequeueKeyInput()

KeyInput fcn::sdl2::Input::dequeueKeyInput ( )

overridevirtual

Dequeues the key input queue.

Returns

The first key input in the key input queue.

Implements fcn::Input.

Definition at line 22 of file input.cpp.

References mKeyInputQueue.

dequeueMouseInput()

MouseInput fcn::sdl2::Input::dequeueMouseInput ( )

overridevirtual

Dequeues the mouse input queue.

Returns

The first mouse input in the mouse input queue.

Implements fcn::Input.

Definition at line 41 of file input.cpp.

References mMouseInputQueue.

isKeyQueueEmpty()

bool fcn::sdl2::Input::isKeyQueueEmpty ( )

overridevirtual

Checks if the key queue is empty, or not.

Returns

True if the key queue is empty, false otherwise.

Implements fcn::Input.

Definition at line 17 of file input.cpp.

References mKeyInputQueue.

isMouseQueueEmpty()

bool fcn::sdl2::Input::isMouseQueueEmpty ( )

overridevirtual

Checks if the mouse queue is empyt, or not.

Returns

True if the mouse queue is empty, false otherwise.

Implements fcn::Input.

Definition at line 36 of file input.cpp.

References mMouseInputQueue.

pushInput()

void fcn::sdl2::Input::pushInput ( SDL_Event event )

virtual

Pushes an SDL event.

It should be called at least once per frame to update input with user input.

Parameters

event

an event from SDL.

Definition at line 55 of file input.cpp.

References convertMouseButton(), convertSDLEventToFifechanKeyValue(), mKeyInputQueue, mMouseDown, mMouseInputQueue, mMouseInWindow, fcn::KeyInput::setAltPressed(), fcn::MouseInput::setButton(), fcn::KeyInput::setControlPressed(), fcn::KeyInput::setKey(), fcn::KeyInput::setMetaPressed(), fcn::KeyInput::setNumericPad(), fcn::KeyInput::setShiftPressed(), fcn::MouseInput::setTimeStamp(), fcn::KeyInput::setType(), fcn::MouseInput::setType(), fcn::MouseInput::setX(), and fcn::MouseInput::setY().

Member Data Documentation

mKeyInputQueue

std::queue<KeyInput> fcn::sdl2::Input::mKeyInputQueue

protected

Queue of key inputs waiting to be processed.

Definition at line 82 of file backends/sdl2/input.hpp.

Referenced by dequeueKeyInput(), isKeyQueueEmpty(), and pushInput().

mMouseDown

bool fcn::sdl2::Input::mMouseDown {false}

protected

True if a mouse button is currently held down.

Definition at line 88 of file backends/sdl2/input.hpp.

Referenced by pushInput().

mMouseInputQueue

std::queue<MouseInput> fcn::sdl2::Input::mMouseInputQueue

protected

Queue of mouse inputs waiting to be processed.

Definition at line 85 of file backends/sdl2/input.hpp.

Referenced by dequeueMouseInput(), isMouseQueueEmpty(), and pushInput().

mMouseInWindow

bool fcn::sdl2::Input::mMouseInWindow {false}

protected

True if the mouse cursor is currently within the application window.

Definition at line 91 of file backends/sdl2/input.hpp.

Referenced by Input(), and pushInput().

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The documentation for this class was generated from the following files:

• backends/sdl2/input.hpp
• input.cpp