draw::Renderer Class Reference

Factory and context owner. More...

#include <draw.h>

Public Member Functions
virtual	~Renderer ()=default
	destruct renderer and owned context More...
virtual GeometryPtr	makeGeometry (Geometry::Vertices vertices, Geometry::Indices indices, Geometry::Primitive primitive)=0
	make Geometry object More...
virtual ImagePtr	makeImage (const Size &size, Image::Format format, bool filter)=0
	make Image object More...
virtual FontPtr	makeFont (const char *filePath, uint32_t letterSize)=0
	make Font object More...
virtual ShapePtr	makeRect ()=0
	make Shape object with rectangle Geometry More...
virtual ShapePtr	makeShape ()=0
	make Shape object More...
virtual TextPtr	makeText ()=0
	make Text object More...
virtual uint32_t	draw (const Color &clear)=0
	clear the screen and repaint all visible objects More...
virtual void	resize (const Size &size)=0
	set a new screen size More...

Detailed Description

Factory and context owner.

To create an object of this type use draw::makeRenderer function.

NOTE: exceptions are disabled. 'Exceptions' section lists expected errors which you can obtain via draw::getLastError.

Constructor & Destructor Documentation

virtual draw::Renderer::~Renderer ( )

virtualdefault

destruct renderer and owned context

Note: all created objects must be destroyed before the renderer object

Member Function Documentation

virtual uint32_t draw::Renderer::draw ( const Color &  clear )

pure virtual

clear the screen and repaint all visible objects

Returns

drawn objects count

virtual FontPtr draw::Renderer::makeFont ( const char *  filePath, uint32_t  letterSize  )

pure virtual

make Font object

Exceptions

draw::InvalidArgument	if filePath is invalid
draw::InvalidArgument	if letterSize is less than Font::kMinLetterSize
draw::InvalidFontFile	if font file is not exist or corrupted
draw::IncompleteFontFile	if some alphabet's glyphs is not contained in the font file
draw::OpenGLOutOfMemory	if is not enough memory to create internal OpenGL resources

virtual GeometryPtr draw::Renderer::makeGeometry ( Geometry::Vertices  vertices, Geometry::Indices  indices, Geometry::Primitive  primitive  )

pure virtual

make Geometry object

Exceptions

draw::InvalidArgument	if vertices.data is invalid
draw::InvalidArgument	if vertices.count is zero or > Geometry::kMaxVertexCount
draw::InvalidArgument	if indices.data is invalid
draw::InvalidArgument	if indices.count is zero
draw::OpenGLOutOfMemory	if is not enough memory to create internal OpenGL resources

virtual ImagePtr draw::Renderer::makeImage ( const Size &  size, Image::Format  format, bool  filter  )

pure virtual

make Image object

Parameters

size
format
filter	use bilinear filtering or not

Exceptions

draw::InvalidArgument	if size.width is zero or > Image::kMaxSize
draw::InvalidArgument	if size.height is zero or > Image::kMaxSize
draw::OpenGLOutOfMemory	if is not enough memory to create internal OpenGL resources

virtual ShapePtr draw::Renderer::makeRect ( )

pure virtual

make Shape object with rectangle Geometry

Exceptions

draw::OpenGLOutOfMemory

if is not enough memory to create internal OpenGL resources

virtual ShapePtr draw::Renderer::makeShape ( )

pure virtual

make Shape object

Exceptions

draw::OpenGLOutOfMemory

if is not enough memory to create internal OpenGL resources

virtual TextPtr draw::Renderer::makeText ( )

pure virtual

make Text object

Exceptions

draw::OpenGLOutOfMemory

if is not enough memory to create internal OpenGL resources

virtual void draw::Renderer::resize ( const Size &  size )

pure virtual

set a new screen size

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

• src/draw.h