qwtplotlayout.3

linux下qt的第三方的一个类

.TH "QwtPlotLayout" 3 "16 Nov 2004" "Version 4.2.0" "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
Definition at line 25 of file qwt_plot_layout.h.
.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 \fBsetLegendPosition\fP (\fBQwtPlot::Position\fP pos, double ratio)"
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.RI "void \fBsetLegendPosition\fP (\fBQwtPlot::Position\fP pos)"
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.RI "\fBQwtPlot::Position\fP \fBlegendPosition\fP () const"
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.RI "void \fBsetLegendRatio\fP (double ratio)"
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.RI "double \fBlegendRatio\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 "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. 
.PP
Definition at line 66 of file qwt_plot_layout.cpp.
.PP
References invalidate(), setCanvasMargin(), and setLegendPosition().
.SS "QwtPlotLayout::~\fBQwtPlotLayout\fP ()\fC [virtual]\fP"
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Destructor. 
.PP
Definition at line 79 of file qwt_plot_layout.cpp.
.SH "Member Function Documentation"
.PP 
.SS "void QwtPlotLayout::activate (const \fBQwtPlot\fP * plot, const QRect & plotRect, int options = \fC0\fP)\fC [virtual]\fP"
.PP
Recalculate the geometry of all components. 
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\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
Definition at line 910 of file qwt_plot_layout.cpp.
.PP
References alignLegend(), alignScales(), expandLineBreaks(), invalidate(), QwtLegend::isEmpty(), layoutLegend(), QwtPlot::legend(), and scaleRect().
.PP
Referenced by QwtPlot::print(), and QwtPlot::updateLayout().
.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
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\fBQwtPlotLayout::setAlignCanvasToScales\fP, \fBQwtPlotLayout::setCanvasMargin()\fP 
.RE
.PP
\fBNote:\fP
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In this context the term 'scale' means the backbone of a scale. 
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.PP
Definition at line 180 of file qwt_plot_layout.cpp.
.SS "QRect QwtPlotLayout::alignLegend (const QRect & canvasRect, const QRect & legendRect) const\fC [protected]\fP"
.PP
Align the legend to the canvas 
.PP
\fBParameters:\fP
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\fIcanvasRect\fP Geometry of the canvas 
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\fIlegendRect\fP Maximum geometry for the legend 
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\fBReturns:\fP
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Geometry for the aligned legend 
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Definition at line 630 of file qwt_plot_layout.cpp.
.PP
Referenced by activate().
.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. Definition at line 773 of file qwt_plot_layout.cpp.
.PP
References scaleRect().
.PP
Referenced by activate().
.SS "int QwtPlotLayout::canvasMargin (int axis) const"
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\fBReturns:\fP
.RS 4
Margin around the scale tick borders 
.RE
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\fBSee also:\fP
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\fBQwtPlotLayout::setCanvasMargin()\fP 
.RE
.PP
Definition at line 143 of file qwt_plot_layout.cpp.
.PP
Referenced by QwtPlot::canvasMap(), and QwtPlot::print().
.SS "const QRect & QwtPlotLayout::canvasRect () const"
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\fBReturns:\fP
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Geometry for the canvas 
.RE
.PP
\fBSee also:\fP
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\fBQwtPlotLayout::activate()\fP, \fBQwtPlotLayout::invalidate()\fP 
.RE
.PP
Definition at line 374 of file qwt_plot_layout.cpp.
.PP
Referenced by QwtPlot::print(), and QwtPlot::updateLayout().
.SS "void QwtPlotLayout::expandLineBreaks (int options, const QRect & rect, int & dimTitle, int dimAxis[QwtPlot::axisCnt]) const\fC [protected]\fP"
.PP
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
.PP
Definition at line 664 of file qwt_plot_layout.cpp.
.PP
Referenced by activate().
.SS "void QwtPlotLayout::invalidate ()\fC [virtual]\fP"
.PP
Invalidate the geometry of all components. 
.PP
\fBSee also:\fP
.RS 4
\fBQwtPlotLayout::activate()\fP 
.RE
.PP
Definition at line 383 of file qwt_plot_layout.cpp.
.PP
Referenced by activate(), QwtPlot::print(), and QwtPlotLayout().
.SS "QRect QwtPlotLayout::layoutLegend (int options, const QRect & rect) const\fC [protected]\fP"
.PP
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
.PP
Definition at line 572 of file qwt_plot_layout.cpp.
.PP
References legendRect().
.PP
Referenced by activate().
.SS "int QwtPlotLayout::legendPos () const"