Provided by: libqwt5-doc_5.2.2-1ubuntu2_all bug

NAME

       QwtPlotSvgItem -

       A plot item, which displays data in Scalable Vector Graphics (SVG) format.

SYNOPSIS

       #include <qwt_plot_svgitem.h>

       Inherits QwtPlotItem.

   Public Types
       enum ItemAttribute { Legend =  1, AutoScale =  2 }
       enum RenderHint { RenderAntialiased =  1 }
       enum RttiValues { Rtti_PlotItem =  0, Rtti_PlotGrid, Rtti_PlotScale, Rtti_PlotMarker,
           Rtti_PlotCurve, Rtti_PlotHistogram, Rtti_PlotSpectrogram, Rtti_PlotSVG,
           Rtti_PlotUserItem =  1000 }

   Public Member Functions
       void attach (QwtPlot *plot)
       virtual QwtDoubleRect boundingRect () const
       void detach ()
       virtual void draw (QPainter *p, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const
           QRect &rect) const
       void hide ()
       QwtDoubleRect invTransform (const QwtScaleMap &, const QwtScaleMap &, const QRect &) const
       bool isVisible () const
       virtual void itemChanged ()
       virtual QWidget * legendItem () const
       bool loadData (const QwtDoubleRect &, const QByteArray &)
       bool loadFile (const QwtDoubleRect &, const QString &fileName)
       QRect paintRect (const QwtScaleMap &, const QwtScaleMap &) const
       QwtPlot * plot () const
       QwtPlotSvgItem (const QwtText &title)
       QwtPlotSvgItem (const QString &title=QString::null)
       virtual int rtti () const
       QwtDoubleRect scaleRect (const QwtScaleMap &, const QwtScaleMap &) const
       void setAxis (int xAxis, int yAxis)
       void setItemAttribute (ItemAttribute, bool on=true)
       void setRenderHint (RenderHint, bool on=true)
       void setTitle (const QString &title)
       void setTitle (const QwtText &title)
       virtual void setVisible (bool)
       void setXAxis (int axis)
       void setYAxis (int axis)
       void setZ (double z)
       void show ()
       bool testItemAttribute (ItemAttribute) const
       bool testRenderHint (RenderHint) const
       const QwtText & title () const
       QRect transform (const QwtScaleMap &, const QwtScaleMap &, const QwtDoubleRect &) const
       virtual void updateLegend (QwtLegend *) const
       virtual void updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &)
       int xAxis () const
       int yAxis () const
       double z () const
       virtual ~QwtPlotSvgItem ()

   Protected Member Functions
       void render (QPainter *painter, const QwtDoubleRect &viewBox, const QRect &rect) const
       QwtDoubleRect viewBox (const QwtDoubleRect &area) const

Detailed Description

       A plot item, which displays data in Scalable Vector Graphics (SVG) format.

       SVG images are often used to display maps

Member Enumeration Documentation

   enum QwtPlotItem::ItemAttribute [inherited] Plot Item Attributes
       · Legend
          The item is represented on the legend.

       · AutoScale
          The boundingRect() of the item is included in the autoscaling calculation.

       See also:
           setItemAttribute(), testItemAttribute()

   enum QwtPlotItem::RenderHint [inherited]
       Render hints.

   enum QwtPlotItem::RttiValues [inherited]
       Runtime type information. RttiValues is used to cast plot items, without having to enable
       runtime type information of the compiler.

Constructor & Destructor Documentation

   QwtPlotSvgItem::QwtPlotSvgItem (const QString &title = QString::null) [explicit]
       Constructor. Sets the following item attributes:

       · QwtPlotItem::AutoScale: true

       · QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::QwtPlotSvgItem (const QwtText &title) [explicit]
       Constructor. Sets the following item attributes:

       · QwtPlotItem::AutoScale: true

       · QwtPlotItem::Legend: false

       Parameters:
           title Title

   QwtPlotSvgItem::~QwtPlotSvgItem () [virtual]
       Destructor.

Member Function Documentation

   void QwtPlotItem::attach (QwtPlot *plot) [inherited]
       Attach the item to a plot. This method will attach a QwtPlotItem to the QwtPlot argument.
       It will first detach the QwtPlotItem from any plot from a previous call to attach (if
       necessary). If a NULL argument is passed, it will detach from any QwtPlot it was attached
       to.

       Parameters:
           plot Plot widget

       See also:
           QwtPlotItem::detach()

   QwtDoubleRect QwtPlotSvgItem::boundingRect () const [virtual]
       Bounding rect of the item.

       Reimplemented from QwtPlotItem.

   void QwtPlotItem::detach () [inline, inherited]
       This method detaches a QwtPlotItem from any QwtPlot it has been associated with. detach()
       is equivalent to calling attach( NULL )

       See also:
           attach( QwtPlot* plot )

   void QwtPlotSvgItem::draw (QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap
       &yMap, const QRect &canvasRect) const [virtual] Draw the SVG item
       Parameters:
           painter Painter
           xMap X-Scale Map
           yMap Y-Scale Map
           canvasRect Contents rect of the plot canvas

       Implements QwtPlotItem.

   void QwtPlotItem::hide () [inherited]
       Hide the item.

   QwtDoubleRect QwtPlotItem::invTransform (const QwtScaleMap &xMap, const QwtScaleMap &yMap,
       const QRect &rect) const [inherited] Transform a rectangle from paint to scale coordinates
       Parameters:
           xMap X map
           yMap Y map
           rect Rectangle in paint coordinates

       Returns:
           Rectangle in scale coordinates

       See also:
           transform()

   bool QwtPlotItem::isVisible () const [inherited] Returns:
           true if visible

       See also:
           setVisible(), show(), hide()

   void QwtPlotItem::itemChanged () [virtual, inherited] Update the legend and call
       QwtPlot::autoRefresh for the parent plot.
       See also:
           updateLegend()

   QWidget * QwtPlotItem::legendItem () const [virtual, inherited]
       Allocate the widget that represents the item on the legend. The default implementation is
       made for QwtPlotCurve and returns a QwtLegendItem(), but an item could be represented by
       any type of widget, by overloading legendItem() and updateLegend().

       Returns:
           QwtLegendItem()

       See also:
           updateLegend() QwtLegend()

       Implements QwtLegendItemManager.

   bool QwtPlotSvgItem::loadData (const QwtDoubleRect &rect, const QByteArray &data) Load SVG
       data
       Parameters:
           rect Bounding rectangle
           data in SVG format

       Returns:
           true, if the SVG data could be loaded

   bool QwtPlotSvgItem::loadFile (const QwtDoubleRect &rect, const QString &fileName) Load a SVG
       file
       Parameters:
           rect Bounding rectangle
           fileName SVG file name

       Returns:
           true, if the SVG file could be loaded

   QRect QwtPlotItem::paintRect (const QwtScaleMap &xMap, const QwtScaleMap &yMap) const
       [inherited]
       Calculate the bounding paint rect of 2 maps. Parameters:
           xMap X map
           yMap X map

       Returns:
           Bounding rect of the scale maps

   QwtPlot * QwtPlotItem::plot () const [inherited]
       Return attached plot.

   void QwtPlotSvgItem::render (QPainter *painter, const QwtDoubleRect &viewBox, const QRect
       &rect) const [protected] Render the SVG data
       Parameters:
           painter Painter
           viewBox View Box, see QSvgRenderer::viewBox
           rect Traget rectangle on the paint device

   int QwtPlotSvgItem::rtti () const [virtual] Returns:
           QwtPlotItem::Rtti_PlotSVG

       Reimplemented from QwtPlotItem.

   QwtDoubleRect QwtPlotItem::scaleRect (const QwtScaleMap &xMap, const QwtScaleMap &yMap) const
       [inherited]
       Calculate the bounding scale rect of 2 maps. Parameters:
           xMap X map
           yMap X map

       Returns:
           Bounding rect of the scale maps

   void QwtPlotItem::setAxis (intxAxis, intyAxis) [inherited] Set X and Y axis
       The item will painted according to the coordinates its Axes.

       Parameters:
           xAxis X Axis
           yAxis Y Axis

       See also:
           setXAxis(), setYAxis(), xAxis(), yAxis()

   void QwtPlotItem::setItemAttribute (ItemAttributeattribute, boolon = true) [inherited] Toggle
       an item attribute
       Parameters:
           attribute Attribute type
           on true/false

       See also:
           testItemAttribute(), ItemAttribute

   void QwtPlotItem::setRenderHint (RenderHinthint, boolon = true) [inherited] Toggle an render
       hint
       Parameters:
           hint Render hint
           on true/false

       See also:
           testRenderHint(), RenderHint

   void QwtPlotItem::setTitle (const QString &title) [inherited] Set a new title
       Parameters:
           title Title

       See also:
           title()

   void QwtPlotItem::setTitle (const QwtText &title) [inherited] Set a new title
       Parameters:
           title Title

       See also:
           title()

   void QwtPlotItem::setVisible (boolon) [virtual, inherited] Show/Hide the item
       Parameters:
           on Show if true, otherwise hide

       See also:
           isVisible(), show(), hide()

   void QwtPlotItem::setXAxis (intaxis) [inherited] Set the X axis
       The item will painted according to the coordinates its Axes.

       Parameters:
           axis X Axis

       See also:
           setAxis(), setYAxis(), xAxis()

   void QwtPlotItem::setYAxis (intaxis) [inherited] Set the Y axis
       The item will painted according to the coordinates its Axes.

       Parameters:
           axis Y Axis

       See also:
           setAxis(), setXAxis(), yAxis()

   void QwtPlotItem::setZ (doublez) [inherited]
       Set the z value. Plot items are painted in increasing z-order.

       Parameters:
           z Z-value

       See also:
           z(), QwtPlotDict::itemList()

   void QwtPlotItem::show () [inherited]
       Show the item.

   bool QwtPlotItem::testItemAttribute (ItemAttributeattribute) const [inherited] Test an item
       attribute
       Parameters:
           attribute Attribute type

       Returns:
           true/false

       See also:
           setItemAttribute(), ItemAttribute

   bool QwtPlotItem::testRenderHint (RenderHinthint) const [inherited] Test a render hint
       Parameters:
           hint Render hint

       Returns:
           true/false

       See also:
           setRenderHint(), RenderHint

   const QwtText & QwtPlotItem::title () const [inherited] Returns:
           Title of the item

       See also:
           setTitle()

   QRect QwtPlotItem::transform (const QwtScaleMap &xMap, const QwtScaleMap &yMap, const
       QwtDoubleRect &rect) const [inherited] Transform a rectangle
       Parameters:
           xMap X map
           yMap Y map
           rect Rectangle in scale coordinates

       Returns:
           Rectangle in paint coordinates

       See also:
           invTransform()

   void QwtPlotItem::updateLegend (QwtLegend *legend) const [virtual, inherited]
       Update the widget that represents the item on the legend. updateLegend() is called from
       itemChanged() to adopt the widget representing the item on the legend to its new
       configuration.

       The default implementation is made for QwtPlotCurve and updates a QwtLegendItem(), but an
       item could be represented by any type of widget, by overloading legendItem() and
       updateLegend().

       Parameters:
           legend Legend

       See also:
           legendItem(), itemChanged(), QwtLegend()

       Implements QwtLegendItemManager.

       Reimplemented in QwtPlotCurve.

   void QwtPlotItem::updateScaleDiv (const QwtScaleDiv &, const QwtScaleDiv &) [virtual,
       inherited]
       Update the item to changes of the axes scale division. Update the item, when the axes of
       plot have changed. The default implementation does nothing, but items that depend on the
       scale division (like QwtPlotGrid()) have to reimplement updateScaleDiv()

       Parameters:
           xScaleDiv Scale division of the x-axis
           yScaleDiv Scale division of the y-axis

       See also:
           QwtPlot::updateAxes()

       Reimplemented in QwtPlotGrid, and QwtPlotScaleItem.

   QwtDoubleRect QwtPlotSvgItem::viewBox (const QwtDoubleRect &rect) const [protected] Calculate
       the viewBox from an rect and boundingRect().
       Parameters:
           rect Rectangle in scale coordinates

       Returns:
           viewBox View Box, see QSvgRenderer::viewBox

   int QwtPlotItem::xAxis () const [inherited]
       Return xAxis.

   int QwtPlotItem::yAxis () const [inherited]
       Return yAxis.

   double QwtPlotItem::z () const [inherited] Plot items are painted in increasing z-order.
       Returns:
           setZ(), QwtPlotDict::itemList()

Author

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