Pt::Gfx Namespace Reference

Detailed Description

Pt::Gfx provides APIs for drawing 2D shapes and text on different paint surfaces, such as in-memory bitmaps. It also provides image, view and pixel classes for storing image data, accessing pixels and working with image formats.

Classes
class	Argb32
	ARGB-32 image format. More...
class	Argb32ConstPixel
	ARGB-32 const pixel. More...
class	Argb32Image
	Image storing pixels in ARGB-32 format. More...
class	Argb32Pixel
	ARGB-32 pixel. More...
class	BasicConstImage
	Basic const image. More...
class	BasicImage
	Basic image. More...
class	Bitmap
	Off-screen drawing surface backed by an image. More...
class	Brush
	Fill description for shapes and text. More...
class	Canvas
	Backend canvas for drawing commands. More...
class	Color
	Standard color type. More...
struct	ColorConverter
	Converts between public color types. More...
class	ColorF
class	ColorStop
	Color stop for a gradient brush. More...
class	ColorStops
	Ordered collection of gradient color stops. More...
class	CompositionMode
	Blend mode used for drawing operations. More...
class	Font
	Font request used for text drawing and measurement. More...
class	FontMetrics
	Metrics that describe a font face at a given size. More...
class	ImageFormat
	Image format. More...
struct	ImageTraits
	Image traits. More...
class	JpegReader
	Reader for JPEG images. More...
class	Paint
	Paint state used by drawing operations. More...
class	PaintContext
	Active painting session for a surface. More...
class	Painter
	Concrete painter for Pt::Gfx paint targets. More...
class	PainterBase
	Base class for drawing commands and paint state. More...
class	PaintSurface
	Abstract target for drawing operations. More...
class	Path
	Vector path for drawing outlines and filled shapes. More...
class	PathElement
	Read-only view of a path element. More...
class	PathIterator
	Forward iterator over path elements. More...
class	Pen
	Attributes for the drawing of outlines. More...
class	PixelBase
	Pixel base class. More...
class	PngReader
	Reader for PNG images. More...
class	PngWriter
	Writer for PNG images. More...
class	Point
	Point with floating-point X and Y coordinates. More...
class	PointI
	Point with integer X and Y coordinates. More...
class	Rect
	Rect with floating-point coordinates. More...
class	RectI
	Rect with integer coordinates. More...
class	Rgb16
	RGB-565 image format. More...
class	Rgb16Color
	Native RGB-565 color type. More...
class	Rgb16ConstPixel
	RGB-565 const pixel. More...
class	Rgb16Pixel
	RGB-565 pixel. More...
class	Rgb32
	Premultiplied ARGB-32 image format. More...
class	Rgb32Color
	Premultiplied standard color type. More...
class	Rgb32ConstPixel
	Premultiplied ARGB-32 const pixel. More...
class	Rgb32Image
	Image storing pixels in premultiplied ARGB-32 format. More...
class	Rgb32Pixel
	RGB-32 pixel as premultiplied ARGB-32. More...
class	Scaling
	Logical-to-physical unit conversion. More...
class	Size
	Size with floating-point width and height. More...
class	SizeI
	Size with integer width and height. More...
class	TextMetrics
	Metrics for a measured line of text. More...
class	Transform
	Affine transform for drawing coordinates. More...
class	Yuv12
	YV-12 image format. More...
class	Yuv12ConstPixel
	YV12 const pixel. More...
class	Yuv12Pixel
	YV-12 pixel. More...

Typedefs
typedef BasicConstImage< Argb32 >	Argb32ConstImage
	ARGB-32 const image.
typedef BasicView< Argb32 >	Argb32View
	ARGB-32 view.
typedef BasicConstView< Argb32 >	Argb32ConstView
	ARGB-32 const view.
typedef BasicPixelView< Argb32 >	Argb32PixelView
	ARGB-32 pixel view.
typedef BasicConstPixelView< Argb32 >	Argb32ConstPixelView
	ARGB-32 const pixel view.
typedef BasicLineView< Argb32 >	Argb32LineView
	ARGB-32 line view.
typedef BasicConstLineView< Argb32 >	Argb32ConstLineView
	ARGB-32 const line view.
typedef Span< Argb32 >	Argb32Span
	ARGB-32 span.
typedef ConstSpan< Argb32 >	Argb32ConstSpan
	ARGB-32 const span.
typedef BasicImage< Rgb16 >	Rgb16Image
	RGB-16 image.
typedef BasicConstImage< Rgb16 >	Rgb16ConstImage
	RGB-16 const image.
typedef BasicView< Rgb16 >	Rgb16View
	RGB-16 view.
typedef BasicConstView< Rgb16 >	Rgb16ConstView
	RGB-16 const view.
typedef BasicPixelView< Rgb16 >	Rgb16PixelView
	RGB-16 pixel view.
typedef BasicConstPixelView< Rgb16 >	Rgb16ConstPixelView
	RGB-16 const pixel view.
typedef BasicLineView< Rgb16 >	Rgb16LineView
	RGB-16 line view.
typedef BasicConstLineView< Rgb16 >	Rgb16ConstLineView
	RGB-16 const line view.
typedef Span< Rgb16 >	Rgb16Span
	RGB-16 span.
typedef ConstSpan< Rgb16 >	Rgb16ConstSpan
	RGB-16 const span.
typedef BasicConstImage< Rgb32 >	Rgb32ConstImage
	RGB-32 const image.
typedef BasicView< Rgb32 >	Rgb32View
	RGB-32 view.
typedef BasicConstView< Rgb32 >	Rgb32ConstView
	RGB-32 const view.
typedef BasicPixelView< Rgb32 >	Rgb32PixelView
	RGB-32 pixel view.
typedef BasicConstPixelView< Rgb32 >	Rgb32ConstPixelView
	RGB-32 const pixel view.
typedef BasicLineView< Rgb32 >	Rgb32LineView
	RGB-32 line view.
typedef BasicConstLineView< Rgb32 >	Rgb32ConstLineView
	RGB-32 const line view.
typedef Span< Rgb32 >	Rgb32Span
	RGB-32 span.
typedef ConstSpan< Rgb32 >	Rgb32ConstSpan
	RGB-32 const span.
typedef BasicImage< Yuv12 >	Yuv12Image
	YUV-12 image.
typedef BasicConstImage< Yuv12 >	Yuv12ConstImage
	YUV-12 const image.
typedef BasicView< Yuv12 >	Yuv12View
	YUV-12 view.
typedef BasicView< Yuv12 >	Yuv12ConstView
	YUV-12 conmst view.
typedef BasicPixelView< Yuv12 >	Yuv12PixelView
	YUV-12 pixel view.
typedef BasicConstPixelView< Yuv12 >	Yuv12ConstPixelView
	YUV-12 const pixel view.
typedef BasicLineView< Yuv12 >	Yuv12LineView
	YUV-12 line view.
typedef BasicConstLineView< Yuv12 >	Yuv12ConstLineView
	YUV-12 const line view.
typedef Span< Yuv12 >	Yuv12Span
	YUV-12 span.
typedef ConstSpan< Yuv12 >	Yuv12ConstSpan
	YUV-12 const span.

Enumerations
enum	FillRule {   NonZero,   EvenOdd }
	Determines how overlapping subpaths of a filled shape are painted. More...

Functions
void	sourceCopy (Argb32Pixel &to, std::size_t length, const Color &from)
	Copies one color to N destination pixels.
void	sourceOver (Argb32Pixel &to, std::size_t length, const Color &from)
	Blends one color over N destination pixels.
void	sourceCopy (Argb32Pixel &to, const Argb32ConstPixel &from, std::size_t length)
	Copies N source pixels to N destination pixels.
void	sourceOver (Argb32Pixel &to, const Argb32ConstPixel &from, std::size_t length)
	Blends N source pixels over N destination pixels.
template<typename FromView , typename ToView >
void	blockScale (const FromView &from, ToView &to)
	Block scale from a source view to a target view.
template<typename P1 , typename P2 >
void	copyPixel (const P1 &from, P2 &to)
	Copies a single pixel.
template<typename P1 , typename P2 >
void	copyPixel (const P1 &from, P2 &to, std::size_t length)
	Copies a span of pixels.
void	sourceCopy (Rgb32Pixel &to, std::size_t length, const Rgb32Color &from)
	Copies one color to N destination pixels.
void	sourceOver (Rgb32Pixel &to, std::size_t length, const Rgb32Color &from)
	Blends one color over N destination pixels.
void	sourceCopy (Rgb32Pixel &to, const Rgb32ConstPixel &from, std::size_t length)
	Copies N source pixels to N destination pixels.
void	sourceOver (Rgb32Pixel &to, const Rgb32ConstPixel &from, std::size_t length)
	Blends N source pixels over N destination pixels.
template<typename SpanT , typename P >
void	copySpanTo (const SpanT &from, P &to)
	Copies the pixels of a span to a pixel position. More...
template<typename FromSpanT , typename ToSpanT >
void	copySpan (const FromSpanT &from, ToSpanT &to)
	Copies the pixels of a span to another span. More...
template<typename From , typename P >
void	copyViewTo (const From &from, P &to)
	Copies the pixels of a view to a pixel position. More...
template<typename From , typename To >
void	copyView (const From &from, To &to)
	Copies the pixels of a view to another one. More...

Function Documentation

copySpanTo()

void Pt::Gfx::copySpanTo	(	const SpanT &	from,
		P &	to
	)

Copies from.length() pixels without bounds checking. The caller must ensure that enough space is available at 'to'.

copySpan()

void Pt::Gfx::copySpan	(	const FromSpanT &	from,
		ToSpanT &	to
	)

Copies min(from.length(), to.length()) pixels.

copyViewTo()

void Pt::Gfx::copyViewTo	(	const From &	from,
		P &	to
	)

Copies from.width() x from.height() pixels without bounds checking. The caller must ensure that enough space is available at 'to'.

copyView()

void Pt::Gfx::copyView	(	const From &	from,
		To &	to
	)

Copies min(widths) x min(heights) pixels.