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.TH "QwtPlotAbstractGLCanvas" 3 "Sun Jul 18 2021" "Version 6.2.0" "Qwt User's Guide" \" -*- nroff -*-
.ad l
.nh
.SH NAME
QwtPlotAbstractGLCanvas \- Base class of \fBQwtPlotOpenGLCanvas\fP and \fBQwtPlotGLCanvas\fP\&.
.SH SYNOPSIS
.br
.PP
.PP
\fC#include <qwt_plot_abstract_canvas\&.h>\fP
.PP
Inherits \fBQwtPlotAbstractCanvas\fP\&.
.PP
Inherited by \fBQwtPlotGLCanvas\fP, and \fBQwtPlotOpenGLCanvas\fP\&.
.SS "Public Types"
.in +1c
.ti -1c
.RI "enum \fBPaintAttribute\fP { \fBBackingStore\fP = 1, \fBImmediatePaint\fP = 8 }"
.br
.RI "Paint attributes\&. "
.ti -1c
.RI "typedef QFlags< \fBPaintAttribute\fP > \fBPaintAttributes\fP"
.br
.RI "Paint attributes\&. "
.in -1c
.SS "Public Member Functions"
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.RI "\fBQwtPlotAbstractGLCanvas\fP (QWidget *\fBcanvasWidget\fP)"
.br
.RI "Constructor\&. "
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.RI "virtual \fB~QwtPlotAbstractGLCanvas\fP ()"
.br
.RI "Destructor\&. "
.ti -1c
.RI "void \fBsetPaintAttribute\fP (\fBPaintAttribute\fP, bool on=true)"
.br
.RI "Changing the paint attributes\&. "
.ti -1c
.RI "bool \fBtestPaintAttribute\fP (\fBPaintAttribute\fP) const"
.br
.ti -1c
.RI "void \fBsetFrameStyle\fP (int style)"
.br
.ti -1c
.RI "int \fBframeStyle\fP () const"
.br
.ti -1c
.RI "void \fBsetFrameShadow\fP (QFrame::Shadow)"
.br
.ti -1c
.RI "QFrame::Shadow \fBframeShadow\fP () const"
.br
.ti -1c
.RI "void \fBsetFrameShape\fP (QFrame::Shape)"
.br
.ti -1c
.RI "QFrame::Shape \fBframeShape\fP () const"
.br
.ti -1c
.RI "void \fBsetLineWidth\fP (int)"
.br
.ti -1c
.RI "int \fBlineWidth\fP () const"
.br
.ti -1c
.RI "void \fBsetMidLineWidth\fP (int)"
.br
.ti -1c
.RI "int \fBmidLineWidth\fP () const"
.br
.ti -1c
.RI "int \fBframeWidth\fP () const"
.br
.ti -1c
.RI "QRect \fBframeRect\fP () const"
.br
.ti -1c
.RI "virtual void \fBinvalidateBackingStore\fP ()=0"
.br
.RI "Invalidate the internal backing store\&. "
.in -1c
.SS "Protected Member Functions"
.in +1c
.ti -1c
.RI "void \fBreplot\fP ()"
.br
.ti -1c
.RI "void \fBdraw\fP (QPainter *)"
.br
.RI "Helper function for the derived plot canvas\&. "
.in -1c
.SH "Detailed Description"
.PP
Base class of \fBQwtPlotOpenGLCanvas\fP and \fBQwtPlotGLCanvas\fP\&.
.PP
Definition at line 87 of file qwt_plot_abstract_canvas\&.h\&.
.SH "Member Typedef Documentation"
.PP
.SS "typedef QFlags<\fBPaintAttribute\fP > \fBQwtPlotAbstractGLCanvas::PaintAttributes\fP"
.PP
Paint attributes\&. An ORed combination of \fBPaintAttribute\fP values\&.
.PP
Definition at line 122 of file qwt_plot_abstract_canvas\&.h\&.
.SH "Member Enumeration Documentation"
.PP
.SS "enum \fBQwtPlotAbstractGLCanvas::PaintAttribute\fP"
.PP
Paint attributes\&. The default setting enables BackingStore and Opaque\&.
.PP
\fBSee also\fP
.RS 4
\fBsetPaintAttribute()\fP, \fBtestPaintAttribute()\fP
.RE
.PP
.PP
\fBEnumerator\fP
.in +1c
.TP
\fB\fIBackingStore \fP\fP
Paint double buffered reusing the content of the pixmap buffer when possible\&. Using a backing store might improve the performance significantly, when working with widget overlays ( like rubber bands )\&. Disabling the cache might improve the performance for incremental paints (using \fBQwtPlotDirectPainter\fP )\&.
.PP
\fBSee also\fP
.RS 4
backingStore(), \fBinvalidateBackingStore()\fP
.RE
.PP
.TP
\fB\fIImmediatePaint \fP\fP
When ImmediatePaint is set \fBreplot()\fP calls repaint() instead of update()\&.
.PP
\fBSee also\fP
.RS 4
\fBreplot()\fP, QWidget::repaint(), QWidget::update()
.RE
.PP
.PP
Definition at line 97 of file qwt_plot_abstract_canvas\&.h\&.
.SH "Constructor & Destructor Documentation"
.PP
.SS "QwtPlotAbstractGLCanvas::QwtPlotAbstractGLCanvas (QWidget * canvasWidget)\fC [explicit]\fP"
.PP
Constructor\&.
.PP
\fBParameters\fP
.RS 4
\fIcanvasWidget\fP plot canvas widget
.RE
.PP
.PP
Definition at line 904 of file qwt_plot_abstract_canvas\&.cpp\&.
.SH "Member Function Documentation"
.PP
.SS "QRect QwtPlotAbstractGLCanvas::frameRect () const"
.PP
\fBReturns\fP
.RS 4
The rectangle where the frame is drawn in\&.
.RE
.PP
.PP
Definition at line 1105 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "QFrame::Shadow QwtPlotAbstractGLCanvas::frameShadow () const"
.PP
\fBReturns\fP
.RS 4
Frame shadow
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetFrameShadow()\fP, QFrame::setFrameShadow()
.RE
.PP
.PP
Definition at line 1000 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "QFrame::Shape QwtPlotAbstractGLCanvas::frameShape () const"
.PP
\fBReturns\fP
.RS 4
Frame shape
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetFrameShape()\fP, QFrame::frameShape()
.RE
.PP
.PP
Definition at line 1020 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "int QwtPlotAbstractGLCanvas::frameStyle () const"
.PP
\fBReturns\fP
.RS 4
The bitwise OR between a \fBframeShape()\fP and a \fBframeShadow()\fP
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetFrameStyle()\fP, QFrame::frameStyle()
.RE
.PP
.PP
Definition at line 980 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "int QwtPlotAbstractGLCanvas::frameWidth () const"
.PP
\fBReturns\fP
.RS 4
Frame width depending on the style, line width and midline width\&.
.RE
.PP
.PP
Definition at line 1084 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "int QwtPlotAbstractGLCanvas::lineWidth () const"
.PP
\fBReturns\fP
.RS 4
Line width of the frame
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetLineWidth()\fP, \fBmidLineWidth()\fP
.RE
.PP
.PP
Definition at line 1048 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "int QwtPlotAbstractGLCanvas::midLineWidth () const"
.PP
\fBReturns\fP
.RS 4
Midline width of the frame
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetMidLineWidth()\fP, \fBlineWidth()\fP
.RE
.PP
.PP
Definition at line 1076 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::replot ()\fC [protected]\fP"
Invalidate the paint cache and repaint the canvas
.PP
\fBSee also\fP
.RS 4
invalidatePaintCache()
.RE
.PP
.PP
Definition at line 1093 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setFrameShadow (QFrame::Shadow shadow)"
Set the frame shadow
.PP
\fBParameters\fP
.RS 4
\fIshadow\fP Frame shadow
.RE
.PP
\fBSee also\fP
.RS 4
\fBframeShadow()\fP, \fBsetFrameShape()\fP, QFrame::setFrameShadow()
.RE
.PP
.PP
Definition at line 991 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setFrameShape (QFrame::Shape shape)"
Set the frame shape
.PP
\fBParameters\fP
.RS 4
\fIshape\fP Frame shape
.RE
.PP
\fBSee also\fP
.RS 4
\fBframeShape()\fP, \fBsetFrameShadow()\fP, QFrame::frameShape()
.RE
.PP
.PP
Definition at line 1011 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setFrameStyle (int style)"
Set the frame style
.PP
\fBParameters\fP
.RS 4
\fIstyle\fP The bitwise OR between a shape and a shadow\&.
.RE
.PP
\fBSee also\fP
.RS 4
\fBframeStyle()\fP, QFrame::setFrameStyle(), \fBsetFrameShadow()\fP, \fBsetFrameShape()\fP
.RE
.PP
.PP
Definition at line 965 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setLineWidth (int width)"
Set the frame line width
.PP
The default line width is 2 pixels\&.
.PP
\fBParameters\fP
.RS 4
\fIwidth\fP Line width of the frame
.RE
.PP
\fBSee also\fP
.RS 4
\fBlineWidth()\fP, \fBsetMidLineWidth()\fP
.RE
.PP
.PP
Definition at line 1033 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setMidLineWidth (int width)"
Set the frame mid line width
.PP
The default midline width is 0 pixels\&.
.PP
\fBParameters\fP
.RS 4
\fIwidth\fP Midline width of the frame
.RE
.PP
\fBSee also\fP
.RS 4
\fBmidLineWidth()\fP, \fBsetLineWidth()\fP
.RE
.PP
.PP
Definition at line 1061 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "void QwtPlotAbstractGLCanvas::setPaintAttribute (\fBPaintAttribute\fP attribute, bool on = \fCtrue\fP)"
.PP
Changing the paint attributes\&.
.PP
\fBParameters\fP
.RS 4
\fIattribute\fP Paint attribute
.br
\fIon\fP On/Off
.RE
.PP
\fBSee also\fP
.RS 4
\fBtestPaintAttribute()\fP
.RE
.PP
.PP
Definition at line 927 of file qwt_plot_abstract_canvas\&.cpp\&.
.SS "bool QwtPlotAbstractGLCanvas::testPaintAttribute (\fBPaintAttribute\fP attribute) const"
Test whether a paint attribute is enabled
.PP
\fBParameters\fP
.RS 4
\fIattribute\fP Paint attribute
.RE
.PP
\fBReturns\fP
.RS 4
true, when attribute is enabled
.RE
.PP
\fBSee also\fP
.RS 4
\fBsetPaintAttribute()\fP
.RE
.PP
.PP
Definition at line 952 of file qwt_plot_abstract_canvas\&.cpp\&.
.SH "Author"
.PP
Generated automatically by Doxygen for Qwt User's Guide from the source code\&.