Changeset 8127 in ntrip for trunk/BNC/qwt/qwt_plot_item.h

Timestamp:

May 10, 2017, 3:20:54 PM (7 years ago)

Author:

stoecker

Message:

update qwt and qwtpolar, many QT5 fixes (unfinished)

File:

• trunk/BNC/qwt/qwt_plot_item.h (modified) (10 diffs)

trunk/BNC/qwt/qwt_plot_item.h

@@ -12 +12 @@
 
 #include "qwt_global.h"
-#include "qwt_legend_itemmanager.h"
 #include "qwt_text.h"
+#include "qwt_legend_data.h"
+#include "qwt_graphic.h"
 #include <qrect.h>
-
-class QString;
+#include <qlist.h>
+#include <qmetatype.h>
+
 class QPainter;
-class QWidget;
-class QwtPlot;
-class QwtLegend;
 class QwtScaleMap;
 class QwtScaleDiv;
+class QwtPlot;
 
 /*!
@@ -51 +51 @@
 
   Depending on the QwtPlotItem::ItemAttribute flags, an item is included
-  into autoscaling or has an entry on the legnd.
+  into autoscaling or has an entry on the legend.
 
   Before misusing the existing item classes it might be better to
@@ -62 +62 @@
 */
 
-class QWT_EXPORT QwtPlotItem: public QwtLegendItemManager
+class QWT_EXPORT QwtPlotItem
 {
 public:
@@ -73 +73 @@
     enum RttiValues
     {
+        //! Unspecific value, that can be used, when it doesn't matter
         Rtti_PlotItem = 0,
 
+        //! For QwtPlotGrid
         Rtti_PlotGrid,
+
+        //! For QwtPlotScaleItem
         Rtti_PlotScale,
+
+        //! For QwtPlotLegendItem
+        Rtti_PlotLegend,
+
+        //! For QwtPlotMarker
         Rtti_PlotMarker,
+
+        //! For QwtPlotCurve
         Rtti_PlotCurve,
+
+        //! For QwtPlotSpectroCurve
         Rtti_PlotSpectroCurve,
+
+        //! For QwtPlotIntervalCurve
         Rtti_PlotIntervalCurve,
+
+        //! For QwtPlotHistogram
         Rtti_PlotHistogram,
+
+        //! For QwtPlotSpectrogram
         Rtti_PlotSpectrogram,
+
+        //! For QwtPlotSvgItem
         Rtti_PlotSVG,
 
+        //! For QwtPlotTradingCurve
+        Rtti_PlotTradingCurve,
+
+        //! For QwtPlotBarChart
+        Rtti_PlotBarChart,
+
+        //! For QwtPlotMultiBarChart
+        Rtti_PlotMultiBarChart,
+
+        //! For QwtPlotShapeItem
+        Rtti_PlotShape,
+
+        //! For QwtPlotTextLabel
+        Rtti_PlotTextLabel,
+
+        //! For QwtPlotZoneItem
+        Rtti_PlotZone,
+
+        /*! 
+           Values >= Rtti_PlotUserItem are reserved for plot items
+           not implemented in the Qwt library.
+         */
         Rtti_PlotUserItem = 1000
     };
 
     /*!
-       Plot Item Attributes
-       \sa setItemAttribute(), testItemAttribute()
+       \brief Plot Item Attributes
+
+       Various aspects of a plot widget depend on the attributes of
+       the attached plot items. If and how a single plot item 
+       participates in these updates depends on its attributes.
+       
+       \sa setItemAttribute(), testItemAttribute(), ItemInterest
      */
     enum ItemAttribute
@@ -98 +146 @@
 
         /*!
-         The boundingRect() of the item is included in the
-         autoscaling calculation.
-         */
-        AutoScale = 0x02
+           The boundingRect() of the item is included in the
+           autoscaling calculation as long as its width or height
+           is >= 0.0.
+         */
+        AutoScale = 0x02,
+
+        /*!
+           The item needs extra space to display something outside
+           its bounding rectangle. 
+           \sa getCanvasMarginHint()
+         */
+        Margins = 0x04
     };
 
     //! Plot Item Attributes
     typedef QFlags<ItemAttribute> ItemAttributes;
+
+    /*!
+       \brief Plot Item Interests
+
+       Plot items might depend on the situation of the corresponding
+       plot widget. By enabling an interest the plot item will be
+       notified, when the corresponding attribute of the plot widgets
+       has changed.
+
+       \sa setItemAttribute(), testItemAttribute(), ItemInterest
+     */
+    enum ItemInterest
+    {
+        /*! 
+           The item is interested in updates of the scales
+           \sa updateScaleDiv()
+         */
+        ScaleInterest = 0x01,
+
+        /*! 
+           The item is interested in updates of the legend ( of other items )
+           This flag is intended for items, that want to implement a legend
+           for displaying entries of other plot item.
+
+           \note If the plot item wants to be represented on a legend
+                 enable QwtPlotItem::Legend instead.
+
+           \sa updateLegend()
+         */
+        LegendInterest = 0x02
+    };
+
+    //! Plot Item Interests
+    typedef QFlags<ItemInterest> ItemInterests;
 
     //! Render hints
@@ -111 +201 @@
     {
         //! Enable antialiasing
-        RenderAntialiased = 1
+        RenderAntialiased = 0x1
     };
 
@@ -134 +224 @@
     bool testItemAttribute( ItemAttribute ) const;
 
+    void setItemInterest( ItemInterest, bool on = true );
+    bool testItemInterest( ItemInterest ) const;
+
     void setRenderHint( RenderHint, bool on = true );
     bool testRenderHint( RenderHint ) const;
+
+    void setRenderThreadCount( uint numThreads );
+    uint renderThreadCount() const;
+
+    void setLegendIconSize( const QSize & );
+    QSize legendIconSize() const;
 
     double z() const;
@@ -154 +253 @@
 
     virtual void itemChanged();
+    virtual void legendChanged();
 
     /*!
@@ -169 +269 @@
     virtual QRectF boundingRect() const;
 
-    virtual void updateLegend( QwtLegend * ) const;
+    virtual void getCanvasMarginHint( 
+        const QwtScaleMap &xMap, const QwtScaleMap &yMap,
+        const QRectF &canvasSize,
+        double &left, double &top, double &right, double &bottom) const;
+
     virtual void updateScaleDiv( 
         const QwtScaleDiv&, const QwtScaleDiv& );
 
-    virtual QWidget *legendItem() const;
+    virtual void updateLegend( const QwtPlotItem *,
+        const QList<QwtLegendData> & );
 
     QRectF scaleRect( const QwtScaleMap &, const QwtScaleMap & ) const;
     QRectF paintRect( const QwtScaleMap &, const QwtScaleMap & ) const;
+
+    virtual QList<QwtLegendData> legendData() const;
+
+    virtual QwtGraphic legendIcon( int index, const QSizeF  & ) const;
+
+protected:
+    QwtGraphic defaultIcon( const QBrush &, const QSizeF & ) const;
 
 private:
@@ -188 +300 @@
 
 Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotItem::ItemAttributes )
+Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotItem::ItemInterests )
 Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotItem::RenderHints )
 
+Q_DECLARE_METATYPE( QwtPlotItem * )
+
 #endif