10 #include "qwt_plot_item.h" 
   13 #include "qwt_legend_data.h" 
   14 #include "qwt_scale_map.h" 
   15 #include "qwt_graphic.h" 
   19 class QwtPlotItem::PrivateData
 
   57     m_data = 
new PrivateData;
 
   66     m_data = 
new PrivateData;
 
   67     m_data->title = 
title;
 
   76     m_data = 
new PrivateData;
 
   77     m_data->title = 
title;
 
  100     if ( 
plot == m_data->plot )
 
  104         m_data->plot->attachItem( 
this, 
false );
 
  109         m_data->plot->attachItem( 
this, 
true );
 
  167     if ( m_data->z != 
z )
 
  170             m_data->plot->attachItem( 
this, 
false );
 
  175             m_data->plot->attachItem( 
this, 
true );
 
  200     if ( m_data->title != 
title )
 
  202         m_data->title = 
title;
 
  217     return m_data->title;
 
  230     if ( m_data->attributes.testFlag( attribute ) != on )
 
  233             m_data->attributes |= attribute;
 
  235             m_data->attributes &= ~attribute;
 
  251                     m_data->plot->updateLegend( 
this );
 
  268     return m_data->attributes.testFlag( attribute );
 
  281     if ( m_data->interests.testFlag( interest ) != on )
 
  284             m_data->interests |= interest;
 
  286             m_data->interests &= ~interest;
 
  301     return m_data->interests.testFlag( interest );
 
  314     if ( m_data->renderHints.testFlag( hint ) != on )
 
  317             m_data->renderHints |= hint;
 
  319             m_data->renderHints &= ~hint;
 
  334     return m_data->renderHints.testFlag( hint );
 
  352     m_data->renderThreadCount = numThreads;
 
  362     return m_data->renderThreadCount;
 
  375     if ( m_data->legendIconSize != size )
 
  377         m_data->legendIconSize = size;
 
  388     return m_data->legendIconSize;
 
  403     int index, 
const QSizeF& size )
 const 
  423     const QBrush& brush, 
const QSizeF& size )
 const 
  426     if ( !size.isEmpty() )
 
  430         QRectF r( 0, 0, size.width(), size.height() );
 
  432         QPainter painter( &icon );
 
  433         painter.fillRect( r, brush );
 
  459     if ( on != m_data->isVisible )
 
  461         m_data->isVisible = on;
 
  472     return m_data->isVisible;
 
  484         m_data->plot->autoRefresh();
 
  494         m_data->plot->updateLegend( 
this );
 
  510         m_data->xAxisId = xAxisId;
 
  513         m_data->yAxisId = yAxisId;
 
  530         m_data->xAxisId = axisId;
 
  547         m_data->yAxisId = axisId;
 
  555     return m_data->xAxisId;
 
  561     return m_data->yAxisId;
 
  570     return QRectF( 1.0, 1.0, -2.0, -2.0 ); 
 
  597     double& left, 
double& top, 
double& right, 
double& bottom )
 const 
  601     Q_UNUSED( canvasRect );
 
  604     left = top = right = bottom = 0.0;
 
  633     data.
setValue( QwtLegendData::TitleRole,
 
  634         QVariant::fromValue( label ) );
 
  639         data.
setValue( QwtLegendData::IconRole,
 
  640             QVariant::fromValue( graphic ) );
 
  668     Q_UNUSED( xScaleDiv );
 
  669     Q_UNUSED( yScaleDiv );
 
  708     return QRectF( xMap.
s1(), yMap.
s1(),
 
  723     const QRectF rect( xMap.
p1(), yMap.
p1(),
 
A paint device for scalable graphics.
void setDefaultSize(const QSizeF &)
Set a default size.
Attributes of an entry on a legend.
void setValue(int role, const QVariant &)
Base class for items on the plot canvas.
QwtAxisId yAxis() const
Return yAxis.
void setLegendIconSize(const QSize &)
QRectF paintRect(const QwtScaleMap &, const QwtScaleMap &) const
Calculate the bounding paint rectangle of 2 maps.
QFlags< ItemInterest > ItemInterests
void setRenderThreadCount(uint numThreads)
virtual QwtGraphic legendIcon(int index, const QSizeF &) const
void setTitle(const QString &title)
void hide()
Hide the item.
virtual ~QwtPlotItem()
Destroy the QwtPlotItem.
virtual QList< QwtLegendData > legendData() const
Return all information, that is needed to represent the item on the legend.
virtual void legendChanged()
const QwtText & title() const
QRectF scaleRect(const QwtScaleMap &, const QwtScaleMap &) const
Calculate the bounding scale rectangle of 2 maps.
QFlags< RenderHint > RenderHints
QFlags< ItemAttribute > ItemAttributes
void setZ(double z)
Set the z value.
void setItemAttribute(ItemAttribute, bool on=true)
virtual void setVisible(bool)
QwtPlot * plot() const
Return attached plot.
QwtAxisId xAxis() const
Return xAxis.
bool testItemInterest(ItemInterest) const
void show()
Show the item.
QwtGraphic defaultIcon(const QBrush &, const QSizeF &) const
Return a default icon from a brush.
@ Rtti_PlotItem
Unspecific value, that can be used, when it doesn't matter.
void detach()
This method detaches a QwtPlotItem from any QwtPlot it has been associated with.
void setItemInterest(ItemInterest, bool on=true)
virtual void updateScaleDiv(const QwtScaleDiv &, const QwtScaleDiv &)
Update the item to changes of the axes scale division.
bool testItemAttribute(ItemAttribute) const
void setAxes(QwtAxisId xAxis, QwtAxisId yAxis)
bool testRenderHint(RenderHint) const
void setRenderHint(RenderHint, bool on=true)
virtual void itemChanged()
ItemAttribute
Plot Item Attributes.
@ Legend
The item is represented on the legend.
uint renderThreadCount() const
virtual void getCanvasMarginHint(const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect, double &left, double &top, double &right, double &bottom) const
Calculate a hint for the canvas margin.
void attach(QwtPlot *plot)
Attach the item to a plot.
virtual QRectF boundingRect() const
virtual void updateLegend(const QwtPlotItem *, const QList< QwtLegendData > &)
Update the item to changes of the legend info.
QSize legendIconSize() const
ItemInterest
Plot Item Interests.
A class representing a scale division.
A class representing a text.
void setRenderFlags(int)
Change the render flags.
bool isYAxis(int axisPos)
@ XBottom
X axis below the canvas.
@ YLeft
Y axis left of the canvas.
bool isXAxis(int axisPos)