kanzi::emscripten::DefaultEmscriptenGraphicsOutput Class Reference

Class representing a default Emscripten graphics output. More...

#include <kanzi/core.ui/platform/graphics_output/emscripten/default_emscripten_graphics_output.hpp>

Inheritance diagram for kanzi::emscripten::DefaultEmscriptenGraphicsOutput:

Public Member Functions
	DefaultEmscriptenGraphicsOutput (const DefaultEmscriptenGraphicsOutputProperties &properties)
	Constructor.
void	gatherEvents (EventQueue &queue) override
	Amends the given event queue with events received so far.
KZ_NO_DISCARD optional< NativeEventHandle >	getNativeEventHandle () const noexcept override
	Returns a waitable event handle for this event source, if available.
KZ_NO_DISCARD Matrix4x4	getTargetTransformation () const noexcept override
	Returns the target transformation.
KZ_NO_DISCARD optional< unsigned int >	getWindowHeight () const noexcept
	Returns the active window height.
KZ_NO_DISCARD optional< unsigned int >	getWindowWidth () const noexcept
	Returns the active window width.
void	logWindowSize () const noexcept
	Prints the active window size to log.
Public Member Functions inherited from kanzi::GraphicsOutput
KZ_NO_DISCARD Vector2	getDpi () const noexcept
	Returns the resolution of the target coordinate system in dots per inch.
KZ_NO_DISCARD unsigned int	getHeight () const noexcept
	Returns the height of layout area in the target coordinate system.
KZ_NO_DISCARD unsigned int	getWidth () const noexcept
	Returns the width of layout area in the target coordinate system.
virtual	~GraphicsOutput ()=default
	Destructor.
Public Member Functions inherited from kanzi::EventSource
virtual	~EventSource ()=default
	Destructor.
Public Member Functions inherited from kanzi::WakeupSignalSource
WakeupSignalSource &	operator= (const WakeupSignalSource &)=default
	Copy assignment operator.
WakeupSignalSource &	operator= (WakeupSignalSource &&) noexcept=default
	Move assignment operator.
	WakeupSignalSource ()=default
	Constructor.
	WakeupSignalSource (const WakeupSignalSource &)=default
	Copy constructor.
	WakeupSignalSource (WakeupSignalSource &&) noexcept=default
	Move constructor.
virtual	~WakeupSignalSource ()=default
	Destructor.
Public Member Functions inherited from kanzi::FramebufferGraphicsOutput
	FramebufferGraphicsOutput ()
	Constructor.
KZ_NO_DISCARD const Framebuffer &	getFramebuffer () const noexcept
	Returns the framebuffer for the Graphics Output.
KZ_NO_DISCARD Framebuffer &	getFramebuffer () noexcept
	Returns the framebuffer for the Graphics Output.
virtual	~FramebufferGraphicsOutput ()=default
	Destructor.

Protected Member Functions
void	setTargetTransformation (Matrix4x4 targetTransformation) noexcept
	Sets the target transformation.
bool	updateCachedValues (unsigned int width, unsigned int height) noexcept
	Updates all cached values from given layout size.
Protected Member Functions inherited from kanzi::GraphicsOutput
void	updateDpi (Vector2 dpi)
	Updates the target layout area resolution.
void	updateSize (unsigned int width, unsigned int height)
	Updates the target layout area size.

Detailed Description

Class representing a default Emscripten graphics output.

Constructor & Destructor Documentation

DefaultEmscriptenGraphicsOutput()

kanzi::emscripten::DefaultEmscriptenGraphicsOutput::DefaultEmscriptenGraphicsOutput ( const DefaultEmscriptenGraphicsOutputProperties & properties )

explicit

Constructor.

Parameters

properties

Specifies properties to request for the graphics output.

Member Function Documentation

logWindowSize()

void kanzi::emscripten::DefaultEmscriptenGraphicsOutput::logWindowSize ( ) const

noexcept

Prints the active window size to log.

gatherEvents()

void kanzi::emscripten::DefaultEmscriptenGraphicsOutput::gatherEvents ( EventQueue & queue )

overridevirtual

Amends the given event queue with events received so far.

Parameters

queue

Event queue to be amended. Do not clear nor assume to be empty.

Implements kanzi::EventSource.

getNativeEventHandle()

KZ_NO_DISCARD optional< NativeEventHandle > kanzi::emscripten::DefaultEmscriptenGraphicsOutput::getNativeEventHandle ( ) const

overridevirtualnoexcept

Returns a waitable event handle for this event source, if available.

Return values

nullopt

Getting the event handle failed.

Returns

The native event handle.

Implements kanzi::WakeupSignalSource.

getTargetTransformation()

KZ_NO_DISCARD Matrix4x4 kanzi::emscripten::DefaultEmscriptenGraphicsOutput::getTargetTransformation ( ) const

overridevirtualnoexcept

Returns the target transformation.

Returns

Target transformation matrix.

Implements kanzi::FramebufferGraphicsOutput.

getWindowWidth()

KZ_NO_DISCARD optional< unsigned int > kanzi::emscripten::DefaultEmscriptenGraphicsOutput::getWindowWidth ( ) const

noexcept

Returns the active window width.

Return values

nullopt

Getting the width failed.

Returns

Window width in implementation defined units.

getWindowHeight()

KZ_NO_DISCARD optional< unsigned int > kanzi::emscripten::DefaultEmscriptenGraphicsOutput::getWindowHeight ( ) const

noexcept

Returns the active window height.

Return values

nullopt

Getting the height failed.

Returns

Window height in implementation defined units.

setTargetTransformation()

void kanzi::emscripten::DefaultEmscriptenGraphicsOutput::setTargetTransformation ( Matrix4x4 targetTransformation )

inlineprotectednoexcept

Sets the target transformation.

Parameters

targetTransformation

The target transformation matrix.

updateCachedValues()

bool kanzi::emscripten::DefaultEmscriptenGraphicsOutput::updateCachedValues ( unsigned int width, unsigned int height )

protectednoexcept

Updates all cached values from given layout size.

Parameters

width	Layout area width in pixels.
height	Layout area height in pixels.

Returns

True, if the given values were new.

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

• kanzi/core.ui/platform/graphics_output/emscripten/default_emscripten_graphics_output.hpp