qwtmarker.3

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.TH "QwtMarker" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtMarker \- 
.SH SYNOPSIS
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.PP
Inherited by \fBQwtPlotMarker\fP.
.PP
.SH "Detailed Description"
.PP 
A class for drawing markers. 

A marker can be a horizontal line, a vertical line, a symbol, a label or any combination of them, which can be drawn around a center point inside a bounding rectangle.
.PP
The \fBQwtMarker::setSymbol()\fP member assigns a symbol to the marker. The symbol is drawn at the specified point.
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With \fBQwtMarker::setLabel()\fP, a label can be assigned to the marker. The \fBQwtMarker::setLabelAlignment()\fP member specifies where the label is drawn. All the Align*-constants in Qt::AlignmentFlags (see Qt documentation) are valid. The interpretation of the alignment depends on the marker's line style. The alignment refers to the center point of the marker, which means, for example, that the label would be printed left above the center point if the alignment was set to AlignLeft|AlignTop. 
.PP
.SS "Public Types"

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.RI "enum \fBLineStyle\fP { \fBNoLine\fP, \fBHLine\fP, \fBVLine\fP, \fBCross\fP }"
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.SS "Public Member Functions"

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.RI "\fBQwtMarker\fP ()"
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.RI "virtual \fB~QwtMarker\fP ()"
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.RI "\fBQwtMarker\fP (const  \fBQwtMarker\fP &)"
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.RI "\fBQwtMarker\fP & \fBoperator=\fP (const  \fBQwtMarker\fP &)"
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.RI "void \fBsetLineStyle\fP (\fBLineStyle\fP st)"
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.RI "\fBLineStyle\fP \fBlineStyle\fP () const "
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.RI "void \fBsetSymbol\fP (const  \fBQwtSymbol\fP &s)"
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.RI "const  \fBQwtSymbol\fP & \fBsymbol\fP () const "
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.RI "void \fBsetLabel\fP (const  QString &text, const  QFont &font=QFont(), const  QColor &color=QColor(), const  QPen &pen=QPen(Qt::NoPen), const  QBrush &brush=QBrush(Qt::NoBrush))"
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.RI "void \fBsetLabelText\fP (const  QString &text)"
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.RI "const  QString \fBlabel\fP () const "
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.RI "void \fBsetLabelAlignment\fP (int align)"
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.RI "int \fBlabelAlignment\fP () const "
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.RI "void \fBsetLabelColor\fP (const  QColor &c)"
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.RI "const  QColor \fBlabelColor\fP () const "
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.RI "void \fBsetLabelPen\fP (const  QPen &p)"
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.RI "const  QPen \fBlabelPen\fP () const "
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.RI "void \fBsetLinePen\fP (const  QPen &p)"
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.RI "const  QPen & \fBlinePen\fP () const "
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.RI "void \fBsetFont\fP (const  QFont &f)"
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.RI "const  QFont \fBfont\fP () const "
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.RI "virtual void \fBdraw\fP (QPainter *p, int x, int y, const  QRect &r)"
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.SS "Protected Member Functions"

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.RI "virtual void \fBmarkerChanged\fP ()"
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.SH "Member Enumeration Documentation"
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.SS "enum \fBQwtMarker::LineStyle\fP"
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Line styles. 
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\fBSee also:\fP
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\fBQwtMarker::setLineStyle\fP, \fBQwtMarker::lineStyle\fP 
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.SH "Constructor & Destructor Documentation"
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.SS "QwtMarker::QwtMarker ()"
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Sets alignment to Qt::AlignCenter, and style to NoLine. 
.SS "QwtMarker::~\fBQwtMarker\fP ()\fC [virtual]\fP"
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Destructor. 
.SS "QwtMarker::QwtMarker (const \fBQwtMarker\fP & m)"
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Copy constructor. \fBParameters:\fP
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\fIm\fP Marker 
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.SH "Member Function Documentation"
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.SS "void QwtMarker::draw (QPainter * p, int x, int y, const QRect & r)\fC [virtual]\fP"
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Draw the marker. \fBParameters:\fP
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\fIp\fP Painter 
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\fIx\fP X position 
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\fIy\fP Y position 
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\fIr\fP Bounding rectangle 
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.SS "const  QFont QwtMarker::font () const"
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\fBReturns:\fP
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the font used for the label 
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\fBSee also:\fP
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\fBQwtMarker::setFont()\fP 
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.SS "const  QString QwtMarker::label () const"
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\fBReturns:\fP
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the label 
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\fBSee also:\fP
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\fBQwtMarker::setLabel()\fP 
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.SS "int QwtMarker::labelAlignment () const"
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\fBReturns:\fP
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the label alignment 
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\fBSee also:\fP
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\fBQwtMarker::setLabelAlignment()\fP 
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.SS "const  QColor QwtMarker::labelColor () const"
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\fBReturns:\fP
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the label's color 
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\fBSee also:\fP
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\fBQwtMarker::setLabelPen()\fP 
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.SS "const  QPen QwtMarker::labelPen () const"
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\fBReturns:\fP
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the label's pen 
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\fBSee also:\fP
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\fBQwtMarker::setLabelPen()\fP 
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\fBWarning:\fP
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This function is deprecated. Use \fBQwtMarker::labelColor\fP. 
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.SS "const  QPen & QwtMarker::linePen () const"
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\fBReturns:\fP
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the line pen 
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\fBSee also:\fP
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\fBQwtMarker::setLinePen()\fP 
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.SS "\fBQwtMarker::LineStyle\fP QwtMarker::lineStyle () const"
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\fBReturns:\fP
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the line style 
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\fBSee also:\fP
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For a description of line styles, see \fBQwtMarker::setLineStyle()\fP 
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.SS "void QwtMarker::markerChanged ()\fC [protected, virtual]\fP"
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Notify a change of parameters. This virtual function is called when a marker property has been changed and redrawing is advisable. It can be reimplemented by derived classes. The default implementation does nothing. Reimplemented in \fBQwtPlotMarker\fP.
.SS "\fBQwtMarker\fP & QwtMarker::operator= (const \fBQwtMarker\fP & m)"
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Assignment operator. \fBParameters:\fP
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\fIm\fP Marker 
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.SS "void QwtMarker::setFont (const QFont & f)"
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Specify the font for the label. \fBParameters:\fP
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\fIf\fP New font 
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\fBSee also:\fP
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\fBQwtMarker::font()\fP 
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.SS "void QwtMarker::setLabel (const QString & text, const QFont & font = QFont(), const QColor & color = QColor(), const QPen & pen = QPen(Qt::NoPen), const QBrush & brush = QBrush(Qt::NoBrush))"
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Set the label. \fBParameters:\fP
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\fItext\fP Contents of the label text 
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\fIfont\fP Font of the label text 
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\fIcolor\fP Color of the label text 
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\fIpen\fP Pen to draw the enclosing rectangle 
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\fIbrush\fP Brush to draw the enclosing rectangle 
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\fBSee also:\fP
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\fBQwtMarker::label()\fP 
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.SS "void QwtMarker::setLabelAlignment (int align)"
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Set the alignment of the label. The alignment determines where the label is drawn relative to the marker's position.
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\fBParameters:\fP
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\fIalign\fP Alignment. A combination of AlignTop, AlignBottom, AlignLeft, AlignRight, AlignCenter, AlgnHCenter, AlignVCenter. 
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\fBSee also:\fP
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\fBQwtMarker::labelAlignment()\fP 
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.SS "void QwtMarker::setLabelColor (const QColor & color)"
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Specify a color for the label. \fBParameters:\fP
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\fIcolor\fP Color of the label text 
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\fBSee also:\fP
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\fBQwtMarker::labelColor()\fP 
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.SS "void QwtMarker::setLabelPen (const QPen & p)"
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Specify a pen for the label. \fBParameters:\fP
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\fIp\fP New pen 
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\fBSee also:\fP
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\fBQwtMarker::labelPen()\fP 
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\fBWarning:\fP
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This function is deprecated. Use \fBQwtMarker::setLabelColor\fP. 
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.SS "void QwtMarker::setLabelText (const QString & text)"
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Set the label text. \fBParameters:\fP
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\fItext\fP label text 
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\fBSee also:\fP
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\fBQwtMarker::label()\fP 
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.SS "void QwtMarker::setLinePen (const QPen & p)"
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Specify a pen for the line. \fBParameters:\fP
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\fIp\fP New pen 
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\fBSee also:\fP
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\fBQwtMarker::linePen()\fP 
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.SS "void QwtMarker::setLineStyle (\fBQwtMarker::LineStyle\fP st)"
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Set the line style. \fBParameters:\fP
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\fIst\fP Line style. Can be one of QwtMarker::NoLine, QwtMarker::HLine, QwtMarker::VLine or QwtMarker::Cross 
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\fBSee also:\fP
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\fBQwtMarker::lineStyle()\fP 
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.SS "void QwtMarker::setSymbol (const \fBQwtSymbol\fP & s)"
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Assign a symbol. \fBParameters:\fP
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\fIs\fP New symbol 
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\fBSee also:\fP
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\fBQwtSymbol\fP, \fBQwtMarker::symbol()\fP 
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.SS "const  \fBQwtSymbol\fP & QwtMarker::symbol () const"
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\fBReturns:\fP
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the symbol 
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\fBSee also:\fP
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\fBQwtMarker::setSymbol()\fP, \fBQwtSymbol\fP 
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.SH "Author"
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Generated automatically by Doxygen for Qwt User's Guide from the source code.