qwtsymbol.3

linux下qt的第三方的一个类

.TH "QwtSymbol" 3 "16 Nov 2004" "Version 4.2.0" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtSymbol \- 
.SH SYNOPSIS
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.PP
.SH "Detailed Description"
.PP 
A class for drawing symbols. 
.PP
Definition at line 22 of file qwt_symbol.h.
.SS "Public Types"

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.RI "enum \fBStyle\fP { \fBNone\fP, \fBEllipse\fP, \fBRect\fP, \fBDiamond\fP, \fBTriangle\fP, \fBDTriangle\fP, \fBUTriangle\fP, \fBLTriangle\fP, \fBRTriangle\fP, \fBCross\fP, \fBXCross\fP, \fBStyleCnt\fP }"
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.SS "Public Member Functions"

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.RI "\fBQwtSymbol\fP ()"
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.RI "\fBQwtSymbol\fP (\fBStyle\fP st, const QBrush &bd, const QPen &pn, const QSize &s)"
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.RI "virtual \fB~QwtSymbol\fP ()"
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.RI "bool \fBoperator!=\fP (const \fBQwtSymbol\fP &) const"
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.RI "bool \fBoperator==\fP (const \fBQwtSymbol\fP &) const"
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.RI "void \fBsetSize\fP (const QSize &s)"
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.RI "void \fBsetSize\fP (int a, int b=-1)"
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.RI "void \fBsetBrush\fP (const QBrush &b)"
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.RI "void \fBsetPen\fP (const QPen &p)"
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.RI "void \fBsetStyle\fP (\fBStyle\fP s)"
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.RI "const QBrush & \fBbrush\fP () const"
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.RI "const QPen & \fBpen\fP () const"
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.RI "const QSize & \fBsize\fP () const"
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.RI "\fBStyle\fP \fBstyle\fP () const"
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.RI "void \fBdraw\fP (QPainter *p, const QPoint &pt) const"
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.RI "void \fBdraw\fP (QPainter *p, int x, int y) const"
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.RI "virtual void \fBdraw\fP (QPainter *p, const QRect &r) const"
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.SH "Member Enumeration Documentation"
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.SS "enum \fBQwtSymbol::Style\fP"
.PP
Style 
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\fBSee also:\fP
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\fBQwtSymbol::setStyle\fP, \fBQwtSymbol::style\fP 
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Definition at line 29 of file qwt_symbol.h.
.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtSymbol::QwtSymbol ()"
.PP
Default Constructor
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The symbol is constructed with gray interior, black outline with zero width, no size and style 'None'. Definition at line 22 of file qwt_symbol.cpp.
.SS "QwtSymbol::QwtSymbol (\fBQwtSymbol::Style\fP style, const QBrush & brush, const QPen & pen, const QSize & size)"
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Constructor. 
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\fBParameters:\fP
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\fIstyle\fP Symbol Style 
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\fIbrush\fP brush to fill the interior 
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\fIpen\fP outline pen 
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\fIsize\fP size 
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Definition at line 37 of file qwt_symbol.cpp.
.SS "QwtSymbol::~\fBQwtSymbol\fP ()\fC [virtual]\fP"
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Destructor. 
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Definition at line 47 of file qwt_symbol.cpp.
.SH "Member Function Documentation"
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.SS "const QBrush& QwtSymbol::brush () const"
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Return Brush. 
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Definition at line 47 of file qwt_symbol.h.
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Referenced by QwtPlotPrintFilter::apply(), QwtLegendItem::drawIdentifier(), QwtCurve::drawSymbols(), operator==(), and QwtPlotPrintFilter::reset().
.SS "void QwtSymbol::draw (QPainter * painter, const QRect & r) const\fC [virtual]\fP"
.PP
Draw the symbol into a bounding rectangle. 
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This function assumes that the painter has been initialized with brush and pen before. This allows a much more performant implementation when painting many symbols with the same brush and pen like in curves.
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIr\fP Bounding rectangle 
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Definition at line 116 of file qwt_symbol.cpp.
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References QwtPainter::drawEllipse(), QwtPainter::drawLine(), QwtPainter::drawPolygon(), and QwtPainter::drawRect().
.SS "void QwtSymbol::draw (QPainter * painter, int x, int y) const"
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Draw the symbol at a point (x,y). 
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Definition at line 100 of file qwt_symbol.cpp.
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References draw().
.SS "void QwtSymbol::draw (QPainter * painter, const QPoint & pos) const"
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Draw the symbol at a specified point. 
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\fBParameters:\fP
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\fIpainter\fP Painter 
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\fIpos\fP Center of the symbol 
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Definition at line 198 of file qwt_symbol.cpp.
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Referenced by draw(), QwtMarker::draw(), QwtLegendItem::drawIdentifier(), and QwtCurve::drawSymbols().
.SS "bool QwtSymbol::operator!= (const \fBQwtSymbol\fP &) const"
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!= operator 
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Definition at line 240 of file qwt_symbol.cpp.
.SS "bool QwtSymbol::operator== (const \fBQwtSymbol\fP &) const"
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== operator 
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Definition at line 233 of file qwt_symbol.cpp.
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References brush(), pen(), size(), and style().
.SS "const QPen& QwtSymbol::pen () const"
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Return Pen. 
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Definition at line 49 of file qwt_symbol.h.
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Referenced by QwtPlotPrintFilter::apply(), QwtLegendItem::drawIdentifier(), QwtCurve::drawSymbols(), operator==(), and QwtPlotPrintFilter::reset().
.SS "void QwtSymbol::setBrush (const QBrush & br)"
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Assign a brush. 
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The brush is used to draw the interior of the symbol. 
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\fBParameters:\fP
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\fIbr\fP brush 
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Definition at line 80 of file qwt_symbol.cpp.
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Referenced by QwtPlotPrintFilter::apply(), and QwtPlotPrintFilter::reset().
.SS "void QwtSymbol::setPen (const QPen & pn)"
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Assign a pen. 
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The pen is used to draw the symbol's outline.
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\fBParameters:\fP
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\fIpn\fP pen 
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Definition at line 92 of file qwt_symbol.cpp.
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Referenced by QwtPlotPrintFilter::apply(), and QwtPlotPrintFilter::reset().
.SS "void QwtSymbol::setSize (int w, int h = \fC-1\fP)"
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Specify the symbol's size. 
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If the 'h' parameter is left out or less than 0, and the 'w' parameter is greater than or equal to 0, the symbol size will be set to (w,w). 
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\fBParameters:\fP
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\fIw\fP width 
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\fIh\fP height (defaults to -1) 
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Definition at line 60 of file qwt_symbol.cpp.
.SS "void QwtSymbol::setSize (const QSize & s)"
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Set the symbol's size. 
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Definition at line 68 of file qwt_symbol.cpp.
.SS "void QwtSymbol::setStyle (\fBQwtSymbol::Style\fP s)"
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Specify the symbol style. 
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The following styles are defined:
.IP "\fBQwtSymbol::None<dd>No Style. The symbol cannot be drawn. \fP" 1c
.IP "\fBQwtSymbol::Ellipse<dd>Ellipse or circle \fP" 1c
.IP "\fBQwtSymbol::Rect<dd>Rectangle \fP" 1c
.IP "\fBQwtSymbol::Diamond<dd>Diamond \fP" 1c
.IP "\fBQwtSymbol::Triangle<dd>Triangle pointing upwards \fP" 1c
.IP "\fBQwtSymbol::DTriangle<dd>Triangle pointing downwards \fP" 1c
.IP "\fBQwtSymbol::UTriangle<dd>Triangle pointing upwards \fP" 1c
.IP "\fBQwtSymbol::LTriangle<dd>Triangle pointing left \fP" 1c
.IP "\fBQwtSymbol::RTriangle<dd>Triangle pointing right \fP" 1c
.IP "\fBQwtSymbol::Cross<dd>Cross \fP" 1c
.IP "\fBQwtSymbol::XCross<dd>Diagonal cross\fP" 1c
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\fBParameters:\fP
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\fIs\fP style 
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Definition at line 227 of file qwt_symbol.cpp.
.SS "const QSize& QwtSymbol::size () const"
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Return Size. 
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Definition at line 51 of file qwt_symbol.h.
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Referenced by QwtMarker::draw(), QwtLegendItem::drawIdentifier(), QwtCurve::drawSymbols(), and operator==().
.SS "\fBStyle\fP QwtSymbol::style () const"
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Return Style. 
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Definition at line 53 of file qwt_symbol.h.
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Referenced by QwtPlot::closestMarker(), QwtMarker::draw(), QwtCurve::draw(), QwtLegendItem::drawIdentifier(), operator==(), and QwtPlot::updateLegendItem().

.SH "Author"
.PP 
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