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QwtLegendItem

NAME

QwtLegendItem -

SYNOPSIS

Inherits QwtTextLabel.

Detailed Description

A legend label.

QwtLegendItem represents a curve on a legend. It displays an curve identifier with an explaining text. The identifier might be a combination of curve symbol and line. In readonly mode it behaves like a label, otherwise like an unstylish push button.

See also:

QwtLegend, QwtPlotCurve

Definition at line 35 of file qwt_legend_item.h.

Public Types

enum IdentifierMode { NoIdentifier = 0, ShowLine = 1, ShowSymbol = 2, ShowText = 4 }

Public Slots

void setChecked (bool on)

Signals

void clicked ()

void pressed ()

void released ()

void checked (bool)

Public Member Functions

QwtLegendItem (QWidget *parent=0)

QwtLegendItem (const QwtSymbol &, const QPen &, const QwtText &, QWidget *parent=0)

virtual ~QwtLegendItem ()

virtual void setText (const QwtText &)

void setItemMode (QwtLegend::LegendItemMode)

QwtLegend::LegendItemMode itemMode () const

void setIdentifierMode (int)

int identifierMode () const

void setIdentfierWidth (int width)

int identifierWidth () const

void setSpacing (int spacing)

int spacing () const

void setSymbol (const QwtSymbol &)

const QwtSymbol & symbol () const

void setCurvePen (const QPen &)

const QPen & curvePen () const

virtual void drawIdentifier (QPainter *, const QRect &) const

virtual void drawItem (QPainter *p, const QRect &) const

virtual QSize sizeHint () const

bool isChecked () const

Protected Member Functions

void setDown (bool)

bool isDown () const

virtual void paintEvent (QPaintEvent *)

virtual void mousePressEvent (QMouseEvent *)

virtual void mouseReleaseEvent (QMouseEvent *)

virtual void keyPressEvent (QKeyEvent *)

virtual void keyReleaseEvent (QKeyEvent *)

virtual void drawText (QPainter *, const QRect &)

Member Enumeration Documentation

enum QwtLegendItem::IdentifierMode

Identifier mode.

Default is ShowLine | ShowText

See also:

QwtLegendItem::identifierMode, QwtLegendItem::setIdentifierMode

Definition at line 47 of file qwt_legend_item.h.

Constructor & Destructor Documentation

QwtLegendItem::QwtLegendItem (QWidget * parent = 0) [explicit]

Parameters:

parent Parent widget

Definition at line 74 of file qwt_legend_item.cpp.

QwtLegendItem::QwtLegendItem (const QwtSymbol & symbol, const QPen & curvePen, const QwtText & text, QWidget * parent = 0) [explicit]

Parameters:

symbol Curve symbol
curvePen Curve pen
text Label text
parent Parent widget

Definition at line 87 of file qwt_legend_item.cpp.

References symbol(), and QwtTextLabel::text().

QwtLegendItem::~QwtLegendItem () [virtual]

Destructor.

Definition at line 108 of file qwt_legend_item.cpp.

Member Function Documentation

void QwtLegendItem::checked (bool) [signal]

Signal, when the legend item has been toggled.

Referenced by setDown().

void QwtLegendItem::clicked () [signal]

Signal, when the legend item has been clicked.

Referenced by setDown().

const QPen & QwtLegendItem::curvePen () const

Returns:

The curve pen.

See also:

setCurvePen()

Definition at line 288 of file qwt_legend_item.cpp.

void QwtLegendItem::drawIdentifier (QPainter * painter, const QRect & rect) const [virtual]

Paint the identifier to a given rect.

Parameters:

painter Painter
rect Rect where to paint

Definition at line 298 of file qwt_legend_item.cpp.

References QwtPainter::drawLine(), QwtPainter::metricsMap(), and QwtMetricsMap::screenToLayout().

Referenced by drawItem(), and paintEvent().

void QwtLegendItem::drawItem (QPainter * painter, const QRect & rect) const [virtual]

Draw the legend item to a given rect.

Parameters:

painter Painter
rect Rect where to paint the button

Definition at line 354 of file qwt_legend_item.cpp.

References QwtText::draw(), drawIdentifier(), identifierWidth(), QwtTextLabel::margin(), QwtPainter::metricsMap(), QwtMetricsMap::screenToLayoutX(), spacing(), and QwtTextLabel::text().

void QwtLegendItem::drawText (QPainter *, const QRect &) [protected, virtual]

Redraw the text.

Reimplemented from QwtTextLabel.

Definition at line 535 of file qwt_legend_item.cpp.

References QwtTextLabel::drawText().

int QwtLegendItem::identifierMode () const

Or'd values of IdentifierMode.

See also:

setIdentifierMode(), IdentifierMode

Definition at line 186 of file qwt_legend_item.cpp.

int QwtLegendItem::identifierWidth () const

Return the width of the identifier

See also:

setIdentfierWidth

Definition at line 214 of file qwt_legend_item.cpp.

Referenced by drawItem().

QwtLegend::LegendItemMode QwtLegendItem::itemMode () const

Return the item mode

See also:

setItemMode()

Definition at line 161 of file qwt_legend_item.cpp.

void QwtLegendItem::paintEvent (QPaintEvent *) [protected, virtual]

Qt paint event.

Reimplemented from QwtTextLabel.

Definition at line 378 of file qwt_legend_item.cpp.

References QwtTextLabel::drawContents(), drawIdentifier(), and QwtTextLabel::margin().

void QwtLegendItem::pressed () [signal]

Signal, when the legend item has been pressed.

Referenced by setDown().

void QwtLegendItem::released () [signal]

Signal, when the legend item has been relased.

Referenced by setDown().

void QwtLegendItem::setCurvePen (const QPen & pen)

Set curve pen.

Parameters:

pen Curve pen

See also:

curvePen()

Definition at line 275 of file qwt_legend_item.cpp.

void QwtLegendItem::setIdentfierWidth (int width)

Set the width for the identifier Default is 8 pixels

Parameters:

width New width

See also:

identifierMode(), identifierWidth

Definition at line 199 of file qwt_legend_item.cpp.

References QwtTextLabel::margin(), and QwtTextLabel::setIndent().

void QwtLegendItem::setIdentifierMode (int mode)

Set identifier mode. Default is ShowLine | ShowText.

Parameters:

mode Or'd values of IdentifierMode

See also:

identifierMode()

Definition at line 173 of file qwt_legend_item.cpp.

void QwtLegendItem::setItemMode (QwtLegend::LegendItemMode mode)

Set the item mode The default is QwtLegend::ReadOnlyItem

Parameters:

mode Item mode

See also:

itemMode()

Definition at line 142 of file qwt_legend_item.cpp.

References QwtTextLabel::setMargin().

void QwtLegendItem::setSpacing (int spacing)

Change the spacing

Parameters:

spacing Spacing

See also:

spacing(), identifierWidth(), QwtTextLabel::margin()

Definition at line 224 of file qwt_legend_item.cpp.

References QwtTextLabel::margin(), and QwtTextLabel::setIndent().

void QwtLegendItem::setSymbol (const QwtSymbol & symbol)

Set curve symbol.

Parameters:

symbol Symbol

See also:

symbol()

Definition at line 250 of file qwt_legend_item.cpp.

References symbol().

void QwtLegendItem::setText (const QwtText & text) [virtual]

Set the text to the legend item

Parameters:

text Text label

See also:

QwtTextLabel::text()

Reimplemented from QwtTextLabel.

Definition at line 120 of file qwt_legend_item.cpp.

References QwtText::setRenderFlags(), QwtTextLabel::setText(), and QwtTextLabel::text().

QSize QwtLegendItem::sizeHint () const [virtual]

Return label's margin in pixels.

Reimplemented from QwtTextLabel.

Definition at line 526 of file qwt_legend_item.cpp.

References QwtTextLabel::sizeHint().

int QwtLegendItem::spacing () const

Return the spacing

See also:

setSpacing(), identifierWidth(), QwtTextLabel::margin()

Definition at line 239 of file qwt_legend_item.cpp.

Referenced by drawItem().

const QwtSymbol & QwtLegendItem::symbol () const

Returns:

The curve symbol.

See also:

setSymbol()

Definition at line 263 of file qwt_legend_item.cpp.

Referenced by QwtLegendItem(), and setSymbol().

Author

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