Qwt User's Guide: QwtPainterCommand Class Reference

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QwtPainterCommand Class Reference

`#include <qwt_painter_command.h>`

## Classes

struct | ImageData
| Attributes how to paint a QImage.
struct | PixmapData
| Attributes how to paint a QPixmap.
struct | StateData
| Attributes of a state change.

## Public Types

enum | Type { Invalid = -1, Path, Pixmap, Image, State }
| Type of the paint command. More...

## Public Member Functions

| QwtPainterCommand ()
| Construct an invalid command.
| QwtPainterCommand (const QwtPainterCommand &)
| QwtPainterCommand (const QPainterPath &)
| Copy constructor.
| QwtPainterCommand (const QRectF &rect, const QPixmap &, const QRectF &subRect)
| QwtPainterCommand (const QRectF &rect, const QImage &, const QRectF &subRect, Qt::ImageConversionFlags)
| QwtPainterCommand (const QPaintEngineState &)
| ~QwtPainterCommand ()
| Destructor.
QwtPainterCommand & | operator= (const QwtPainterCommand &)
Type | type () const
QPainterPath * | path ()
const QPainterPath * | path () const
PixmapData * | pixmapData ()
const PixmapData * | pixmapData () const
ImageData * | imageData ()
const ImageData * | imageData () const
StateData * | stateData ()
const StateData * | stateData () const

## Detailed Description

QwtPainterCommand represents the attributes of a paint operation how it is used between QPainter and QPaintDevice

It is used by QwtGraphic to record and replay paint operations

See Also
  QwtGraphic::commands()

## Member Enumeration Documentation

enum QwtPainterCommand::Type

Type of the paint command.

Enumerator
Invalid | Invalid command.
Path | Draw a QPainterPath.
Pixmap | Draw a QPixmap.
Image | Draw a QImage.
State | QPainter state change.

## Constructor & Destructor Documentation

QwtPainterCommand::QwtPainterCommand | ( | const QwtPainterCommand & | other | ) |

Copy constructor

Parameters

  other | Command to be copied

QwtPainterCommand::QwtPainterCommand | ( | const QRectF & | rect,
|  | const QPixmap & | pixmap,
|  | const QRectF & | subRect
| ) |  |

Constructor for Pixmap paint operation

Parameters

  rect | Target rectangle
  pixmap | Pixmap
  subRect | Rectangle inside the pixmap

See Also
  QPainter::drawPixmap()

QwtPainterCommand::QwtPainterCommand | ( | const QRectF & | rect,
|  | const QImage & | image,
|  | const QRectF & | subRect,
|  | Qt::ImageConversionFlags | flags
| ) |  |

Constructor for Image paint operation

Parameters

  rect | Target rectangle
  image | Image
  subRect | Rectangle inside the image
  flags | Conversion flags

See Also
  QPainter::drawImage()

QwtPainterCommand::QwtPainterCommand | ( | const QPaintEngineState & | state | ) |

Constructor for State paint operation

Parameters

  state | Paint engine state

## Member Function Documentation

QwtPainterCommand::ImageData * QwtPainterCommand::imageData | ( |  | ) |

Returns
  Attributes how to paint a QImage

const QwtPainterCommand::ImageData * QwtPainterCommand::imageData | ( |  | ) | const

inline

Returns
  Attributes how to paint a QImage

QwtPainterCommand & QwtPainterCommand::operator= | ( | const QwtPainterCommand & | other | ) |

Assignment operator

Parameters

  other | Command to be copied

Returns
  Modified command

QPainterPath * QwtPainterCommand::path | ( |  | ) |

Returns
  Painter path to be painted

const QPainterPath * QwtPainterCommand::path | ( |  | ) | const

inline

Returns
  Painter path to be painted

QwtPainterCommand::PixmapData * QwtPainterCommand::pixmapData | ( |  | ) |

Returns
  Attributes how to paint a QPixmap

const QwtPainterCommand::PixmapData * QwtPainterCommand::pixmapData | ( |  | ) | const

inline

Returns
  Attributes how to paint a QPixmap

QwtPainterCommand::StateData * QwtPainterCommand::stateData | ( |  | ) |

Returns
  Attributes of a state change

const QwtPainterCommand::StateData * QwtPainterCommand::stateData | ( |  | ) | const

inline

Returns
  Attributes of a state change

QwtPainterCommand::Type QwtPainterCommand::type | ( |  | ) | const

inline

Returns
  Type of the command