rose::gm::GraphicsModel Class Reference

Collaboration diagram for rose::gm::GraphicsModel:

Public Member Functions
bool	initialize (const std::string &title, Size initialSize, const Position< int > &initialPosition, uint32_t extraFlags)
void	eventLoop (std::shared_ptr< Screen > &screen)
	The Rose version of the SDL event loop.
void	drawAll (std::shared_ptr< Screen > &screen)
	Draw the screen. More...
Context &	context ()
int	currentDisplayIndex () const
Rectangle	displayBounds (int displayIndex=-1)
Rectangle	screenRectangle ()
void	redrawBackground ()
Padding	windowBorders () const noexcept
SdlWindow &	getSdlWindow ()

Public Attributes
RoseErrorCode	ErrorCode {RoseErrorCode::OK}
std::function< void(SDL_Event)>	eventCallback {}

Protected Attributes
SdlWindow	mSdlWindow {}
	The SDL_Window which provides the application "Screen".
Context	mContext {}
	The graphics context used by the application graphics model.
bool	mRunEventLoop {true}
	Event loop continues while this is true.
bool	mRedrawBackground {true}
	When true the background Texture needs to be redrawn.
Texture	mBackground {}
	The background Texture.
uint32_t	mFrame {}
	The rendering frame.
std::vector< Rectangle >	mDisplayBounds {}

Member Function Documentation

drawAll()

void rose::gm::GraphicsModel::drawAll

(

std::shared_ptr< Screen > &

screen

)

Draw the screen.

Screen drawing is accomplished in two steps. If/when the background needs to be redrawn (mRedrawBackground is true) the background widgets (the majority of them) are rendered to the mBackground Texture which is then rendered to the frame buffer.

If mRedrawBackground is false, but mAnimation is true mBackground is rendered to the screen, then animated Widgets, those that change at sub-second rates, are rendered to the screen on top of the background.

If neither mRedrawBackground nor mAnimation are true no rendering of the screen is required.

Parameters

screen

The Screen object to draw.

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

• src/GraphicsModel.h
• src/GraphicsModel.cpp