Wt 3.1.10
Classes | Enumerations
Painting system

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

Classes

class  Wt::WBrush
 Class that defines the style for filling areas. More...
class  Wt::WCanvasPaintDevice
 A paint device for rendering using the HTML 5 <canvas> element. More...
class  Wt::WColor
 A class that specifies a color. More...
class  Wt::WFont
 A style class describing a font. 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
 Class that defines the style for pen strokes. More...
class  Wt::WPointF
 Utility class that defines a 2D point. More...
class  Wt::WRasterImage
 A paint device for rendering to a raster image. More...
class  Wt::WRectF
 Utility class that defines a rectangle. More...
class  Wt::WShadow
 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 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

enum  Wt::WPen::PenStyle {
  Wt::NoPen, Wt::SolidLine, Wt::DashLine, Wt::DotLine,
  Wt::DashDotLine, Wt::DashDotDotLine
}
 Enumeration that indicates a pen style. More...
enum  Wt::WPen::PenCapStyle { Wt::FlatCap, Wt::SquareCap, Wt::RoundCap }
 Enumeration that indicates how line end points are rendered. More...
enum  Wt::WPen::PenJoinStyle { Wt::MiterJoin, Wt::BevelJoin, Wt::RoundJoin }
 Enumeration that indicates how line joins are rendered. More...
enum  Wt::WBrush::BrushStyle { Wt::NoBrush, Wt::SolidPattern }
 Enumeration that indicates a fill style. More...

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).


Enumeration Type Documentation

enum BrushStyle [related]

Enumeration that indicates a fill style.

Enumerator:
NoBrush 

Do not fill.

SolidPattern 

Fill with a solid color.

enum PenCapStyle [related]

Enumeration that indicates how line end points are rendered.

Enumerator:
FlatCap 

Flat ends.

SquareCap 

Square ends (prolongs line with half width)

RoundCap 

Round ends (terminates with a half circle)

enum PenJoinStyle [related]

Enumeration that indicates how line joins are rendered.

Enumerator:
MiterJoin 

Pointy joins.

BevelJoin 

Squared-off joins.

RoundJoin 

Rounded joins.

enum PenStyle [related]

Enumeration that indicates a pen style.

Enumerator:
NoPen 

Do not stroke.

SolidLine 

Stroke with a solid line.

DashLine 

Stroked with a dashed line.

DotLine 

Stroke with a dotted line.

DashDotLine 

Stroke with a dash dot line.

DashDotDotLine 

Stroke with a dash dot dot line.

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