QwtStyleSheetRecorder Class Reference

A paint device that records style sheet information for rendering. More...

#include <qwt_stylesheet_recorder.h>

Inheritance diagram for QwtStyleSheetRecorder:

Classes
struct	Background
	Background structure containing path, brush, and origin. More...
struct	Border
	Border structure containing path and rectangle information. More...

Public Member Functions
	QwtStyleSheetRecorder (const QSize &size)
	Constructor with specified size.
virtual void	updateState (const QPaintEngineState &state) override
	Update the paint engine state.
virtual void	drawRects (const QRectF *rects, int count) override
	Draw rectangles with floating-point coordinates.
virtual void	drawRects (const QRect *rects, int count) override
	Draw rectangles with integer coordinates.
virtual void	drawPath (const QPainterPath &path) override
	Draw a painter path.
void	setCornerRects (const QPainterPath &path)
	Set corner rectangles from a path.
Public Member Functions inherited from QwtNullPaintDevice
	QwtNullPaintDevice ()
	Constructor.
	~QwtNullPaintDevice () override
	Destructor.
void	setMode (Mode)
	Set the render mode.
Mode	mode () const
	Get the render mode.
virtual QPaintEngine *	paintEngine () const override
	Return the paint engine.
virtual int	metric (PaintDeviceMetric) const override
	Return metric information for the paint device.
virtual void	drawLines (const QLine *, int)
	Draw lines (integer version)
virtual void	drawLines (const QLineF *, int)
	Draw lines (floating point version)
virtual void	drawEllipse (const QRectF &)
	Draw ellipse (floating point version)
virtual void	drawEllipse (const QRect &)
	Draw ellipse (integer version)
virtual void	drawPoints (const QPointF *, int)
	Draw points (floating point version)
virtual void	drawPoints (const QPoint *, int)
	Draw points (integer version)
virtual void	drawPolygon (const QPointF *, int, QPaintEngine::PolygonDrawMode)
	Draw polygon (floating point version)
virtual void	drawPolygon (const QPoint *, int, QPaintEngine::PolygonDrawMode)
	Draw polygon (integer version)
virtual void	drawPixmap (const QRectF &, const QPixmap &, const QRectF &)
	Draw a pixmap.
virtual void	drawTextItem (const QPointF &, const QTextItem &)
	Draw a text item.
virtual void	drawTiledPixmap (const QRectF &, const QPixmap &, const QPointF &)
	Draw a tiled pixmap.
virtual void	drawImage (const QRectF &, const QImage &, const QRectF &, Qt::ImageConversionFlags)
	Draw an image.

Public Attributes
QVector< QRectF >	clipRects
	Clip rectangles for clipping operations.
struct QwtStyleSheetRecorder::Border	border
struct QwtStyleSheetRecorder::Background	background

Protected Member Functions
virtual QSize	sizeMetrics () const override
	Get the size metrics of the device.

Additional Inherited Members
Public Types inherited from QwtNullPaintDevice
enum	Mode { NormalMode , PolygonPathMode , PathMode }
	Render mode for the paint device. More...

Detailed Description

A paint device that records style sheet information for rendering.

QwtStyleSheetRecorder is used to capture style information (borders, backgrounds, etc.) for rendering styled widgets or elements.

Constructor & Destructor Documentation

QwtStyleSheetRecorder()

QwtStyleSheetRecorder::QwtStyleSheetRecorder ( const QSize &  size )

explicit

Constructor with specified size.

Construct a stylesheet recorder with specified size.

Parameters

[in]

size

Size of the recording area

Member Function Documentation

drawPath()

void QwtStyleSheetRecorder::drawPath ( const QPainterPath &  path )

overridevirtual

Draw a painter path.

Analyzes the path to determine whether it represents a background fill or border element. Paths centered in the rect are treated as backgrounds; others are added to border path list.

Parameters

[in]

path

QPainterPath to analyze and record

Reimplemented from QwtNullPaintDevice.

drawRects() [1/2]

void QwtStyleSheetRecorder::drawRects ( const QRect *  rects, int  count  )

overridevirtual

Draw rectangles with integer coordinates.

Records rectangles to the border rect list for styled border rendering.

Parameters

[in]	rects	Array of rectangles to draw
[in]	count	Number of rectangles

Reimplemented from QwtNullPaintDevice.

drawRects() [2/2]

void QwtStyleSheetRecorder::drawRects ( const QRectF *  rects, int  count  )

overridevirtual

Draw rectangles with floating-point coordinates.

Records rectangles to the border rect list for styled border rendering.

Parameters

[in]	rects	Array of rectangles to draw
[in]	count	Number of rectangles

Reimplemented from QwtNullPaintDevice.

setCornerRects()

void QwtStyleSheetRecorder::setCornerRects

(

const QPainterPath &

path

)

Set corner rectangles from a path.

Extracts corner rectangle regions from a path's curve elements. These rectangles represent areas where clipping may be needed for rounded corners.

Parameters

[in]

path

QPainterPath containing curve elements

sizeMetrics()

QSize QwtStyleSheetRecorder::sizeMetrics ( ) const

overrideprotectedvirtual

Get the size metrics of the device.

Returns

The configured size of this recorder

Implements QwtNullPaintDevice.

updateState()

void QwtStyleSheetRecorder::updateState ( const QPaintEngineState &  state )

overridevirtual

Update the paint engine state.

Records changes to pen, brush, and brush origin from the paint engine state.

Parameters

[in]

state

Paint engine state containing changed attributes

Reimplemented from QwtNullPaintDevice.

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

• /home/runner/work/QWT/QWT/src/plot/qwt_stylesheet_recorder.h
• /home/runner/work/QWT/QWT/src/plot/qwt_stylesheet_recorder.cpp