IDrawable Class Reference

An abstract image that determines itself how it is displayed. Essentially an abstraction from vector and raster graphics. More...

Detailed Description

An abstract image that determines itself how it is displayed. Essentially an abstraction from vector and raster graphics.

Classes
struct	Params

Public Member Functions
virtual AImage	rasterize (glm::ivec2 imageSize)
	Converts possibly vector drawable to a raster image. More...
virtual void	draw (IRenderer &render, const IDrawable::Params &params)=0
	Called when the image needs to be displayed. It is assumed that the renderer is already set to the desired state (coordinates, color, etc.) More...
virtual glm::ivec2	getSizeHint ()=0
virtual bool	isDpiDependent () const

Static Public Member Functions
static API_AUI_VIEWS _< IDrawable >	fromUrl (const AUrl &url) noexcept
	Creates a drawable from an url. More...

Friends
class	AImageLoaderRegistry
class	::Cache< IDrawable, Cache, AUrl >

Member Function Documentation

draw()

virtual void IDrawable::draw ( IRenderer &  render, const IDrawable::Params &  params  )

pure virtual

Called when the image needs to be displayed. It is assumed that the renderer is already set to the desired state (coordinates, color, etc.)

Implemented in AAnimatedDrawable, AVectorDrawable, AImageDrawable, and ANoiseDrawable.

fromUrl()

_< IDrawable > IDrawable::fromUrl ( const AUrl &  url )

staticnoexcept

Creates a drawable from an url.

Parameters

url	url to create a drawable from

Returns

drawable instance or null

If some kind of error occurs during loading the drawable, a log entry [Drawable] is outputted with detailed description of an error. The reason is we don't want to crash our application if we didn't loaded some graphics, which is usually pretty optional stuff. The user can still do his job with the application without fancy images.

getSizeHint()

virtual glm::ivec2 IDrawable::getSizeHint ( )

pure virtual

Returns

Size of the stored image. Can be ignored by the renderer. If the size is unknown, it can be {0, 0}

Implemented in AAnimatedDrawable, AVectorDrawable, AImageDrawable, and ANoiseDrawable.

isDpiDependent()

virtual bool IDrawable::isDpiDependent ( ) const

inlinevirtual

Returns

true if the size hint of this drawable needs to be multiplied by the DPI ratio

Reimplemented in AVectorDrawable.

rasterize()

AImage IDrawable::rasterize ( glm::ivec2  imageSize )

virtual

Converts possibly vector drawable to a raster image.

Parameters

imageSize

image size

Returns

rasterized image

TODO Unimplemented for all drawables except raster image and svg

Reimplemented in AVectorDrawable, and AImageDrawable.

#include <AUI/Image/IDrawable.h>

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

• aui.views/src/AUI/Image/IDrawable.h
• aui.views/src/AUI/Image/IDrawable.cpp

Inheritance diagram for IDrawable: