qwtplotlayout.3

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.TH "QwtPlotLayout" 3 "4 Nov 2003" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtPlotLayout \- 
.SH SYNOPSIS
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.PP
.SH "Detailed Description"
.PP 
Layout class for \fBQwtPlot\fP. 

Organizes the geometry for the different \fBQwtPlot\fP components. 
.PP
.SS "Public Types"

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.RI "enum \fBOptions\fP { \fBAlignScales\fP =  1, \fBIgnoreScrollbars\fP =  2, \fBIgnoreFrames\fP =  4, \fBIgnoreMargin\fP =  8, \fBIgnoreLegend\fP =  16 }"
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.SS "Public Member Functions"

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.RI "\fBQwtPlotLayout\fP ()"
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.RI "virtual \fB~QwtPlotLayout\fP ()"
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.RI "void \fBsetMargin\fP (int)"
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.RI "int \fBmargin\fP () const "
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.RI "void \fBsetCanvasMargin\fP (int margin, int axis=-1)"
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.RI "int \fBcanvasMargin\fP (int axis) const "
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.RI "void \fBsetAlignCanvasToScales\fP (bool)"
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.RI "bool \fBalignCanvasToScales\fP () const "
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.RI "void \fBsetSpacing\fP (int)"
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.RI "int \fBspacing\fP () const "
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.RI "void \fBsetLegendPos\fP (int pos, double ratio=0.0)"
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.RI "int \fBlegendPos\fP () const "
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.RI "double \fBlegendRatio\fP () const "
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.RI "virtual QSize \fBminimumSizeHint\fP (const  \fBQwtPlot\fP *) const "
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.RI "virtual void \fBactivate\fP (const  \fBQwtPlot\fP *, const  QRect &rect, int options=0)"
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.RI "virtual void \fBinvalidate\fP ()"
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.RI "const  QRect & \fBtitleRect\fP () const "
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.RI "const  QRect & \fBlegendRect\fP () const "
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.RI "const  QRect & \fBscaleRect\fP (int axis) const "
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.RI "const  QRect & \fBcanvasRect\fP () const "
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.SS "Protected Member Functions"

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.RI "QRect \fBlayoutLegend\fP (int options, const  QRect &) const "
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.RI "QRect \fBalignLegend\fP (const  QRect &canvasRect, const  QRect &legendRect) const "
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.RI "void \fBexpandLineBreaks\fP (int options, const  QRect &rect, int &dimTitle, int dimAxes[QwtPlot::axisCnt]) const "
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.RI "void \fBalignScales\fP (int options, QRect &canvasRect, QRect scaleRect[QwtPlot::axisCnt]) const "
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.SS "Protected Attributes"

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.RI "QRect \fBd_titleRect\fP"
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.RI "QRect \fBd_legendRect\fP"
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.RI "QRect \fBd_scaleRect\fP [QwtPlot::axisCnt]"
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.RI "QRect \fBd_canvasRect\fP"
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.RI "QwtPlotLayoutData * \fBd_layoutData\fP"
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.SH "Constructor & Destructor Documentation"
.PP 
.SS "QwtPlotLayout::QwtPlotLayout ()"
.PP
Constructor. 
.SS "QwtPlotLayout::~\fBQwtPlotLayout\fP ()\fC [virtual]\fP"
.PP
Destructor. 
.SH "Member Function Documentation"
.PP 
.SS "void QwtPlotLayout::activate (const \fBQwtPlot\fP * plot, const QRect & plotRect, int options = 0)\fC [virtual]\fP"
.PP
Recalculate the geometry of all components. \fBParameters:\fP
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\fIplot\fP Plot to be layout 
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\fIplotRect\fP Rect where to place the components 
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\fIoptions\fP Options
.RE
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\fBSee also:\fP
.RS 4
\fBQwtPlotLayout::invalidate()\fP, \fBQwtPlotLayout::titleRect()\fP, \fBQwtPlotLayout::legendRect()\fP, \fBQwtPlotLayout::scaleRect()\fP, \fBQwtPlotLayout::canvasRect()\fP 
.RE
.PP

.SS "bool QwtPlotLayout::alignCanvasToScales () const"
.PP
Return the align-canvas-to-axis-scales setting. The canvas may:
.IP "\(bu" 2
extend beyond the axis scale ends to maximize its size
.IP "\(bu" 2
align with the axis scale ends to control its size.
.PP
.PP
\fBReturns:\fP
.RS 4
align-canvas-to-axis-scales setting 
.RE
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\fBSee also:\fP
.RS 4
\fBQwtPlotLayout::setAlignCanvasToScales\fP, \fBQwtPlotLayout::setCanvasMargin()\fP 
.RE
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\fBNote:\fP
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In this context the term 'scale' means the backbone of a scale. 
.RE
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.SS "QRect QwtPlotLayout::alignLegend (const QRect & canvasRect, const QRect & legendRect) const\fC [protected]\fP"
.PP
Align the legend to the canvas 
.PP
\fBParameters:\fP
.RS 4
\fIcanvasRect\fP Geometry of the canvas 
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\fIlegendRect\fP Maximum geometry for the legend 
.RE
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\fBReturns:\fP
.RS 4
Geometry for the aligned legend 
.RE
.PP

.SS "void QwtPlotLayout::alignScales (int options, QRect & canvasRect, QRect scaleRect[QwtPlot::axisCnt]) const\fC [protected]\fP"
.PP
Align the ticks of the axis to the canvas borders using the empty corners. 
.SS "int QwtPlotLayout::canvasMargin (int axis) const"
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\fBReturns:\fP
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Margin around the scale tick borders 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::setCanvasMargin()\fP 
.RE
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.SS "const  QRect & QwtPlotLayout::canvasRect () const"
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\fBReturns:\fP
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Geometry for the canvas 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::activate()\fP, \fBQwtPlotLayout::invalidate()\fP 
.RE
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.SS "void QwtPlotLayout::expandLineBreaks (int options, const QRect & rect, int & dimTitle, int dimAxis[QwtPlot::axisCnt]) const\fC [protected]\fP"
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Expand all line breaks in text labels, and calculate the height of their widgets in orientation of the text.
.PP
\fBParameters:\fP
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\fIoptions\fP Options how to layout the legend 
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\fIrect\fP Bounding rect for title, axes and canvas. 
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\fIdimTitle\fP Expanded height of the title widget 
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\fIdimAxis\fP Expanded heights of the axis in axis orientation. 
.RE
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.SS "void QwtPlotLayout::invalidate ()\fC [virtual]\fP"
.PP
Invalidate the geometry of all components. 
.PP
\fBSee also:\fP
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\fBQwtPlotLayout::activate()\fP 
.RE
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.SS "QRect QwtPlotLayout::layoutLegend (int options, const QRect & rect) const\fC [protected]\fP"
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Find the geometry for the legend 
.PP
\fBParameters:\fP
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\fIoptions\fP Options how to layout the legend 
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\fIrect\fP Rectangle where to place the legend 
.RE
.PP
\fBReturns:\fP
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Geometry for the legend 
.RE
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.SS "int QwtPlotLayout::legendPos () const"
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\fBReturns:\fP
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Position of the legend 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::setLegendPos()\fP, \fBQwtPlot::setLegendPos()\fP, \fBQwtPlot::legendPos()\fP 
.RE
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.SS "double QwtPlotLayout::legendRatio () const"
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\fBReturns:\fP
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Position of the legend 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::setLegendPos()\fP, \fBQwtPlot::setLegendPos()\fP 
.RE
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.SS "const  QRect & QwtPlotLayout::legendRect () const"
.PP
\fBReturns:\fP
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Geometry for the legend 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::activate()\fP, \fBQwtPlotLayout::invalidate()\fP 
.RE
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.SS "int QwtPlotLayout::margin () const"
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\fBReturns:\fP
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margin 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::setMargin()\fP, \fBQwtPlotLayout::spacing()\fP, \fBQwtPlot::margin()\fP 
.RE
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.SS "QSize QwtPlotLayout::minimumSizeHint (const \fBQwtPlot\fP * plot) const\fC [virtual]\fP"
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Return a minimum size hint. \fBSee also:\fP
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\fBQwtPlot::minimumSizeHint()\fP 
.RE
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.SS "const  QRect & QwtPlotLayout::scaleRect (int axis) const"
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\fBParameters:\fP
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\fIaxis\fP Axis index 
.RE
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\fBReturns:\fP
.RS 4
Geometry for the scale 
.RE
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\fBSee also:\fP
.RS 4
\fBQwtPlotLayout::activate()\fP, \fBQwtPlotLayout::invalidate()\fP 
.RE
.PP

.SS "void QwtPlotLayout::setAlignCanvasToScales (bool alignCanvasToScales)"
.PP
Change the align-canvas-to-axis-scales setting. The canvas may:
.IP "\(bu" 2
extend beyond the axis scale ends to maximize its size,
.IP "\(bu" 2
align with the axis scale ends to control its size.
.PP
.PP
\fBParameters:\fP
.RS 4
\fIalignCanvasToScales\fP New align-canvas-to-axis-scales setting
.RE
.PP
\fBSee also:\fP
.RS 4
QwtPlotLayout::alignCanvasToTicks, \fBQwtPlotLayout::setCanvasMargin()\fP 
.RE
.PP
\fBNote:\fP
.RS 4
In this context the term 'scale' means the backbone of a scale. 
.RE
.PP
\fBWarning:\fP
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In case of alignCanvasToScales == TRUE canvasMargin will have no effect 
.RE
.PP

.SS "void QwtPlotLayout::setCanvasMargin (int margin, int axis = -1)"
.PP
Change a margin of the canvas. The margin is the space above/below the scale ticks. A negative margin will be set to -1, excluding the borders of the scales.
.PP
\fBParameters:\fP
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\fImargin\fP New margin 
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\fIaxis\fP One of \fBQwtPlot::Axis\fP. Specifies where the position of the margin. -1 means margin at all borders. 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::canvasMargin()\fP
.RE
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\fBWarning:\fP
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The canvas will have no effect when alignCanvasToScales is TRUE 
.RE
.PP

.SS "void QwtPlotLayout::setLegendPos (int pos, double ratio = 0.0)"
.PP
Specify the position of the legend. \fBParameters:\fP
.RS 4
\fIpos\fP The legend's position. Valid values are \fCQwt::Left\fP, \fCQwt::Right\fP, \fCQwt::Top\fP, \fCQwtBottom\fP. 
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\fIratio\fP Ratio between legend and the bounding rect of title, canvas and axes. The legend will be shrinked if it would need more space than the given ratio. The ratio is limited to ]0.0 .. 1.0]. In case of <= 0.0 it will be reset to the default ratio. The default vertical/horizontal ratio is 0.33/0.5.
.RE
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\fBSee also:\fP
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\fBQwtPlot::setLegendPos()\fP 
.RE
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.SS "void QwtPlotLayout::setMargin (int margin)"
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Change the margin of the plot. The margin is the space around all components.
.PP
\fBParameters:\fP
.RS 4
\fImargin\fP new margin 
.RE
.PP
\fBSee also:\fP
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\fBQwtPlotLayout::margin()\fP, \fBQwtPlotLayout::setSpacing()\fP, \fBQwtPlot::setMargin()\fP 
.RE
.PP

.SS "void QwtPlotLayout::setSpacing (int spacing)"
.PP
Change the spacing of the plot. The spacing is the distance between the plot components.
.PP
\fBParameters:\fP
.RS 4
\fIspacing\fP new spacing 
.RE
.PP
\fBSee also:\fP
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\fBQwtPlotLayout::setMargin()\fP, \fBQwtPlotLayout::spacing()\fP 
.RE
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.SS "int QwtPlotLayout::spacing () const"
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\fBReturns:\fP
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spacing 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::margin()\fP, \fBQwtPlotLayout::setSpacing()\fP 
.RE
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.SS "const  QRect & QwtPlotLayout::titleRect () const"
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\fBReturns:\fP
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Geometry for the title 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::activate()\fP, \fBQwtPlotLayout::invalidate()\fP 
.RE
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.SH "Author"
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