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.TH "QwtPlotGrid" 3 "11 Jun 2007" "Version 5.0.2" "Qwt User's Guide" \" -*- nroff -*-
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Inherits \fBQwtPlotItem\fP.
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.SH "Detailed Description"
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A class which draws a coordinate grid.
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The \fBQwtPlotGrid\fP class can be used to draw a coordinate grid. A coordinate grid consists of major and minor vertical and horizontal gridlines. The locations of the gridlines are determined by the X and Y scale divisions which can be assigned with \fBQwtPlotGrid::setXDiv\fP and \fBQwtPlotGrid::setYDiv()\fP The \fBdraw()\fP member draws the grid within a bounding rectangle.
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Definition at line 34 of file qwt_plot_grid.h.
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.SS "Public Member Functions"
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.RI "\fBQwtPlotGrid\fP ()"
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.RI "virtual \fB~QwtPlotGrid\fP ()"
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.RI "virtual int \fBrtti\fP () const "
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.RI "void \fBenableX\fP (bool tf)"
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.RI "bool \fBxEnabled\fP () const "
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.RI "void \fBenableY\fP (bool tf)"
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.RI "bool \fByEnabled\fP () const "
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.RI "void \fBenableXMin\fP (bool tf)"
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.RI "bool \fBxMinEnabled\fP () const "
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.RI "void \fBenableYMin\fP (bool tf)"
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.RI "bool \fByMinEnabled\fP () const "
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.RI "void \fBsetXDiv\fP (const \fBQwtScaleDiv\fP &sx)"
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.RI "const \fBQwtScaleDiv\fP & \fBxScaleDiv\fP () const "
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.RI "void \fBsetYDiv\fP (const \fBQwtScaleDiv\fP &sy)"
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.RI "const \fBQwtScaleDiv\fP & \fByScaleDiv\fP () const "
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.RI "void \fBsetPen\fP (const QPen &p)"
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.RI "void \fBsetMajPen\fP (const QPen &p)"
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.RI "const QPen & \fBmajPen\fP () const "
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.RI "void \fBsetMinPen\fP (const QPen &p)"
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.RI "const QPen & \fBminPen\fP () const "
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.RI "virtual void \fBdraw\fP (QPainter *p, const \fBQwtScaleMap\fP &xMap, const \fBQwtScaleMap\fP &yMap, const QRect &rect) const "
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.RI "virtual void \fBupdateScaleDiv\fP (const \fBQwtScaleDiv\fP &, const \fBQwtScaleDiv\fP &)"
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.SH "Constructor & Destructor Documentation"
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.SS "QwtPlotGrid::QwtPlotGrid ()\fC [explicit]\fP"
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Enables major grid, disables minor grid.
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Definition at line 42 of file qwt_plot_grid.cpp.
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References QwtPlotItem::setZ().
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.SS "QwtPlotGrid::~QwtPlotGrid ()\fC [virtual]\fP"
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Definition at line 50 of file qwt_plot_grid.cpp.
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.SH "Member Function Documentation"
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.SS "void QwtPlotGrid::draw (QPainter * painter, const \fBQwtScaleMap\fP & mx, const \fBQwtScaleMap\fP & my, const QRect & r) const\fC [virtual]\fP"
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The grid is drawn into the bounding rectangle such that gridlines begin and end at the rectangle's borders. The X and Y maps are used to map the scale divisions into the drawing region screen.
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\fIpainter\fP Painter
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\fIr\fP Contents rect of the plot canvas
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Implements \fBQwtPlotItem\fP.
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Definition at line 202 of file qwt_plot_grid.cpp.
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.SS "void QwtPlotGrid::enableX (bool tf)"
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Enable or disable vertical gridlines.
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\fItf\fP Enable (true) or disable
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Minor gridlines can be enabled or disabled with \fBenableXMin()\fP
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Definition at line 67 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::enableXMin (bool tf)"
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Enable or disable minor vertical gridlines.
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\fItf\fP Enable (true) or disable
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Definition at line 95 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::enableY (bool tf)"
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Enable or disable horizontal gridlines.
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\fItf\fP Enable (true) or disable
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Minor gridlines can be enabled or disabled with \fBenableYMin()\fP
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Definition at line 81 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::enableYMin (bool tf)"
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Enable or disable minor horizontal gridlines.
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\fItf\fP Enable (true) or disable
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Definition at line 109 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "const QPen & QwtPlotGrid::majPen () const"
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the pen for the major gridlines
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\fBsetMajPen()\fP, \fBsetMinPen()\fP, \fBsetPen()\fP
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Definition at line 270 of file qwt_plot_grid.cpp.
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.SS "const QPen & QwtPlotGrid::minPen () const"
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the pen for the minor gridlines
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\fBsetMinPen()\fP, \fBsetMajPen()\fP, \fBsetPen()\fP
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Definition at line 279 of file qwt_plot_grid.cpp.
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.SS "void QwtPlotGrid::setMajPen (const QPen & p)"
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Assign a pen for the major gridlines.
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\fBmajPen()\fP, \fBsetMinPen()\fP, \fBsetPen()\fP
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Definition at line 168 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::setMinPen (const QPen & p)"
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Assign a pen for the minor gridlines.
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Definition at line 181 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::setPen (const QPen & p)"
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Assign a pen for both major and minor gridlines.
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\fBsetMajPen()\fP, \fBsetMinPen()\fP
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Definition at line 153 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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.SS "void QwtPlotGrid::setXDiv (const \fBQwtScaleDiv\fP & sx)"
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Assign an x axis scale division.
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\fIsx\fP Scale division
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\fBQwtPlotGrid\fP uses implicit sharing (see Qt Manual) for the scale divisions.
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Definition at line 124 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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Referenced by updateScaleDiv().
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.SS "void QwtPlotGrid::setYDiv (const \fBQwtScaleDiv\fP & sy)"
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Assign a y axis division.
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\fIsy\fP Scale division
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\fBQwtPlotGrid\fP uses implicit sharing (see Qt Manual) for the scale divisions.
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Definition at line 139 of file qwt_plot_grid.cpp.
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References QwtPlotItem::itemChanged().
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Referenced by updateScaleDiv().
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.SS "void QwtPlotGrid::updateScaleDiv (const \fBQwtScaleDiv\fP & xDiv, const \fBQwtScaleDiv\fP & yDiv)\fC [virtual]\fP"
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Update the item to changes of the axes scale division.
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Update the item, when the axes of plot have changed. The default implementation does nothing, but items that depend on the scale division (like \fBQwtPlotGrid()\fP) have to reimplement \fBupdateScaleDiv()\fP
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\fIxScaleDiv\fP Scale division of the x-axis
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\fIyScaleDiv\fP Scale division of the y-axis
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\fBQwtPlot::updateAxes()\fP
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Reimplemented from \fBQwtPlotItem\fP.
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Definition at line 333 of file qwt_plot_grid.cpp.
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References setXDiv(), and setYDiv().
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.SS "bool QwtPlotGrid::xEnabled () const"
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true if vertical gridlines are enabled
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Definition at line 288 of file qwt_plot_grid.cpp.
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.SS "bool QwtPlotGrid::xMinEnabled () const"
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true if minor vertical gridlines are enabled
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Definition at line 297 of file qwt_plot_grid.cpp.
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.SS "const \fBQwtScaleDiv\fP & QwtPlotGrid::xScaleDiv () const"
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the scale division of the x axis
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Definition at line 322 of file qwt_plot_grid.cpp.
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.SS "bool QwtPlotGrid::yEnabled () const"
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true if horizontal gridlines are enabled
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Definition at line 306 of file qwt_plot_grid.cpp.
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.SS "bool QwtPlotGrid::yMinEnabled () const"
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true if minor horizontal gridlines are enabled
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Definition at line 315 of file qwt_plot_grid.cpp.
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.SS "const \fBQwtScaleDiv\fP & QwtPlotGrid::yScaleDiv () const"
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the scale division of the y axis
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Definition at line 328 of file qwt_plot_grid.cpp.
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