Painting system

Classes that provide support for vector graphics painting. More...

Classes
class	Wt::WBrush
	A value class that defines the style for filling a path. More...
class	Wt::WCanvasPaintDevice
	A paint device for rendering using the HTML 5 <canvas> element. More...
class	Wt::WColor
	A value class that defines a color. More...
class	Wt::WFont
	A value class that describes a font. More...
class	Wt::WGradient
	A linear or radial gradient. More...
class	Wt::WLineF
	Utility class that defines a single line. More...
class	Wt::WPaintDevice
	The abstract base class for a paint device. More...
class	Wt::WPaintedWidget
	A widget that is painted using vector graphics. More...
class	Wt::WPainter
	Vector graphics painting class. More...
class	Wt::WPainterPath
	A path defining a shape. More...
class	Wt::WPdfImage
	A paint device for rendering to a PDF. More...
class	Wt::WPen
	A value class that defines the style for pen strokes. More...
class	Wt::WPointF
	A value class that defines a 2D point. More...
class	Wt::WRasterImage
	A paint device for rendering to a raster image. More...
class	Wt::WRectF
	A value class that defines a rectangle. More...
class	Wt::WShadow
	A value class that defines a shadow style. More...
class	Wt::WSvgImage
	A paint device for rendering using Scalable Vector Graphics (SVG). More...
class	Wt::WTransform
	A value class that defines a 2D affine transformation matrix. More...
class	Wt::WVectorImage
	An abstract paint device for rendering using native vector graphics. More...
class	Wt::WVmlImage
	A paint device for rendering using the VML pseudo-standard. More...

Enumerations

Detailed Description

Classes that provide support for vector graphics painting.

Wt provides a vector graphics painting system, which depending on the browser support, uses one of four different methods to paint the graphics (inline SVG, inline VML, HTML 5 <canvas> or a raster image). Vector graphics has as benefit a lower bandwidth usage compared to raster images, indepedent of the image size. To use the paint system, you need to specialize WPaintedWidget and use a WPainter to paint the contents of the widget inside its WPaintedWidget::paintEvent().

In addition, a PDF backend is included in the library, which can be used to make a PDF version of a painting, or to embed a painting in a PDF document.

To use inline SVG, you need to enable xhtml support in your configuration file by enabling send-xhtml-mimetype, see 10.2 General application settings (wt_config.xml).