QwtColumnSymbol Class Reference

A drawing primitive for columns. More...

#include <qwt_column_symbol.h>

Classes
class	PrivateData

Public Types
enum	Style { NoStyle = -1 , Box , UserStyle = 1000 }
	Style. More...
enum	FrameStyle { NoFrame , Plain , Raised }
	Frame Style used in Box style() More...

Public Member Functions
	QwtColumnSymbol (Style=NoStyle)
	Constructor with style parameter.
virtual	~QwtColumnSymbol ()
	Destructor.
void	setFrameStyle (FrameStyle)
	Set the frame style.
FrameStyle	frameStyle () const
	Return the frame style.
void	setLineWidth (int width)
	Set the line width for the frame.
int	lineWidth () const
	Return the line width.
void	setStyle (Style)
	Set the column style.
Style	style () const
	Return the column style.
void	setPen (const QPen &pen)
	Set the outline pen.
QPen	pen () const
	Return the outline pen.
void	setBrush (const QBrush &b)
	Set the fill brush.
QBrush	brush () const
	Return the fill brush.
virtual void	draw (QPainter *, const QwtColumnRect &) const
	Draw the column symbol.

Protected Member Functions
void	drawBox (QPainter *, const QwtColumnRect &) const

Detailed Description

A drawing primitive for columns.

QwtColumnSymbol defines how columns are rendered in column-based charts like bar charts. It provides different styles (Box, etc.) and frame styles (Plain, Raised, NoFrame) to customize the appearance of column graphics. The symbol can be extended by deriving new types with UserStyle.

Member Enumeration Documentation

FrameStyle

enum QwtColumnSymbol::FrameStyle

Frame Style used in Box style()

See also

Style, setFrameStyle(), frameStyle(), setStyle(), setPalette()

Enumerator
NoFrame	No frame.
Plain	A plain frame style.
Raised	A raised frame style.

Style

enum QwtColumnSymbol::Style

Style.

See also

setStyle(), style()

Enumerator
NoStyle	No Style, the symbol draws nothing.
Box	The column is painted with a frame depending on the frameStyle() and lineWidth() using the palette().
UserStyle	Styles >= QwtColumnSymbol::UserStyle are reserved for derived classes of QwtColumnSymbol that overload draw() with additional application specific symbol types.

Constructor & Destructor Documentation

QwtColumnSymbol()

QwtColumnSymbol::QwtColumnSymbol ( Style  style = NoStyle )

explicit

Constructor with style parameter.

Constructor.

Parameters

[in]

style

Style of the symbol

See also

setStyle(), style(), Style

Destructor

Member Function Documentation

brush()

QBrush QwtColumnSymbol::brush

(

)

const

Return the fill brush.

Returns

Current brush used for filling the column

draw()

void QwtColumnSymbol::draw ( QPainter *  painter, const QwtColumnRect &  rect  ) const

virtual

Draw the column symbol.

Draw the symbol depending on its style.

Parameters

[in]	painter	Painter to use for drawing
[in]	rect	Directed rectangle defining the column bounds

See also

drawBox()

frameStyle()

QwtColumnSymbol::FrameStyle QwtColumnSymbol::frameStyle

(

)

const

Return the frame style.

Return current frame style that is used for the Box style.

Returns

Current frame style

See also

setFrameStyle(), lineWidth(), setStyle()

lineWidth()

int QwtColumnSymbol::lineWidth

(

)

const

Return the line width.

Return line width of the frame that is used for the Box style.

Returns

Current line width

See also

setLineWidth(), frameStyle(), setStyle()

pen()

QPen QwtColumnSymbol::pen

(

)

const

Return the outline pen.

Returns

Current pen used for drawing the outline

setBrush()

void QwtColumnSymbol::setBrush

(

const QBrush &

b

)

Set the fill brush.

Specify the fill brush.

Parameters

[in]

b

Brush to use for filling the column

setFrameStyle()

void QwtColumnSymbol::setFrameStyle

(

FrameStyle

frameStyle

)

Set the frame style.

Set the frame style that is used for the Box style.

Parameters

[in]

frameStyle

Frame style to set

See also

frameStyle(), setLineWidth(), setStyle()

setLineWidth()

void QwtColumnSymbol::setLineWidth

(

int

width

)

Set the line width for the frame.

Set the line width of the frame that is used for the Box style.

Parameters

[in]

width

Width of the frame line

See also

lineWidth(), setFrameStyle()

setPen()

void QwtColumnSymbol::setPen

(

const QPen &

pen

)

Set the outline pen.

Specify the outline pen.

Parameters

[in]

pen

Pen to use for drawing the outline

setStyle()

void QwtColumnSymbol::setStyle

(

Style

style

)

Set the column style.

Specify the symbol style.

Parameters

[in]

style

Style to set

See also

style(), setPalette()

style()

QwtColumnSymbol::Style QwtColumnSymbol::style

(

)

const

Return the column style.

Return current symbol style.

Returns

Current style

See also

setStyle()

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

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