QwtPlotAbstractCanvas(3)       Qwt User's Guide       QwtPlotAbstractCanvas(3)

NAME
       QwtPlotAbstractCanvas - Base class for all type of plot canvases.


SYNOPSIS
       #include <qwt_plot_abstract_canvas.h>

       Inherited by QwtPlotAbstractGLCanvas, and QwtPlotCanvas.

   Public Types
       enum FocusIndicator { NoFocusIndicator, CanvasFocusIndicator,
           ItemFocusIndicator }
           Focus indicator The default setting is NoFocusIndicator.

   Public Member Functions
       QwtPlotAbstractCanvas (QWidget *canvasWidget)
           Constructor.
       virtual ~QwtPlotAbstractCanvas ()
           Destructor.
       QwtPlot * plot ()
           Return parent plot widget.
       const QwtPlot * plot () const
           Return parent plot widget.
       void setFocusIndicator (FocusIndicator)
       FocusIndicator focusIndicator () const
       void setBorderRadius (double)
       double borderRadius () const

   Protected Member Functions
       QWidget * canvasWidget ()
       const QWidget * canvasWidget () const
       virtual void drawFocusIndicator (QPainter *)
       virtual void drawBorder (QPainter *)
       virtual void drawBackground (QPainter *)
           Helper function for the derived plot canvas.
       void fillBackground (QPainter *)
           Helper function for the derived plot canvas.
       void drawCanvas (QPainter *)
           Draw the plot to the canvas.
       void drawStyled (QPainter *, bool)
           Helper function for the derived plot canvas.
       void drawUnstyled (QPainter *)
           Helper function for the derived plot canvas.
       QPainterPath canvasBorderPath (const QRect &rect) const
       void updateStyleSheetInfo ()
           Update the cached information about the current style sheet.

Detailed Description
       Base class for all type of plot canvases.

       Definition at line 21 of file qwt_plot_abstract_canvas.h.

Member Enumeration Documentation
   enum QwtPlotAbstractCanvas::FocusIndicator
       Focus indicator The default setting is NoFocusIndicator.

       See also
           setFocusIndicator(), focusIndicator(), drawFocusIndicator()

       Enumerator

       NoFocusIndicator
              Don't paint a focus indicator.

       CanvasFocusIndicator
              The focus is related to the complete canvas. Paint the focus
              indicator using drawFocusIndicator()

       ItemFocusIndicator
              The focus is related to an item (curve, point, ...) on the
              canvas. It is up to the application to display a focus
              indication using f.e. highlighting.

       Definition at line 30 of file qwt_plot_abstract_canvas.h.

Constructor & Destructor Documentation
   QwtPlotAbstractCanvas::QwtPlotAbstractCanvas (QWidget * canvasWidget)
       [explicit]
       Constructor.

       Parameters
           canvasWidget plot canvas widget

       Definition at line 534 of file qwt_plot_abstract_canvas.cpp.

Member Function Documentation
   double QwtPlotAbstractCanvas::borderRadius () const
       Returns
           Radius for the corners of the border frame

       See also
           setBorderRadius()

       Definition at line 613 of file qwt_plot_abstract_canvas.cpp.

   QPainterPath QwtPlotAbstractCanvas::canvasBorderPath (const QRect & rect)
       const [protected]
       Returns
           Path for the canvas border

       Definition at line 619 of file qwt_plot_abstract_canvas.cpp.

   QWidget * QwtPlotAbstractCanvas::canvasWidget () [protected]
       Returns
           canvas widget

       Definition at line 872 of file qwt_plot_abstract_canvas.cpp.

   const QWidget * QwtPlotAbstractCanvas::canvasWidget () const [protected]
       Returns
           canvas widget

       Definition at line 878 of file qwt_plot_abstract_canvas.cpp.

   void QwtPlotAbstractCanvas::drawBorder (QPainter * painter) [protected],
       [virtual]
       Draw the border of the canvas

       Parameters
           painter Painter

       Reimplemented in QwtPlotCanvas.

       Definition at line 628 of file qwt_plot_abstract_canvas.cpp.

   void QwtPlotAbstractCanvas::drawFocusIndicator (QPainter * painter)
       [protected],  [virtual]
       Draw the focus indication

       Parameters
           painter Painter

       Definition at line 587 of file qwt_plot_abstract_canvas.cpp.

   QwtPlotAbstractCanvas::FocusIndicator QwtPlotAbstractCanvas::focusIndicator
       () const
       Returns
           Focus indicator

       See also
           FocusIndicator, setFocusIndicator()

       Definition at line 578 of file qwt_plot_abstract_canvas.cpp.

   void QwtPlotAbstractCanvas::setBorderRadius (double radius)
       Set the radius for the corners of the border frame

       Parameters
           radius Radius of a rounded corner

       See also
           borderRadius()

       Definition at line 604 of file qwt_plot_abstract_canvas.cpp.

   void QwtPlotAbstractCanvas::setFocusIndicator (FocusIndicator
       focusIndicator)
       Set the focus indicator

       See also
           FocusIndicator, focusIndicator()

       Definition at line 568 of file qwt_plot_abstract_canvas.cpp.


Author
       Generated automatically by Doxygen for Qwt User's Guide from the source
       code.

Version 6.2.0                   Sun Jul 18 2021       QwtPlotAbstractCanvas(3)