改进代码

qwtdemo/qwt/qwt_plot_legenditem.h

@@ -23,19 +23,19 @@ class QFont;
   It can be used together with a QwtLegend or instead of it
   to have more space for the plot canvas.
 
-  In opposite to QwtLegend the legend item is not interactive. 
+  In opposite to QwtLegend the legend item is not interactive.
   To identify mouse clicks on a legend item an event filter
   needs to be installed catching mouse events ob the plot canvas.
   The geometries of the legend items are available using
   legendGeometries().
-  
-  The legend item is aligned to plot canvas according to 
+
+  The legend item is aligned to plot canvas according to
   its alignment() flags. It might have a background for the
   complete legend ( usually semi transparent ) or for
   each legend item.
 
-  \note An external QwtLegend with a transparent background 
-        on top the plot canvas might be another option 
+  \note An external QwtLegend with a transparent background
+        on top the plot canvas might be another option
         with a similar effect.
 */
 
@@ -45,7 +45,7 @@ public:
     /*!
       \brief Background mode
 
-      Depending on the mode the complete legend or each item 
+      Depending on the mode the complete legend or each item
       might have an background.
 
       The default setting is LegendBackground.
@@ -83,11 +83,11 @@ public:
 
     void setItemSpacing( int );
     int itemSpacing() const;
-    
+
     void setFont( const QFont& );
     QFont font() const;
 
-    void setBorderDistance( int numPixels );
+    void setBorderDistance( int );
     int borderDistance() const;
 
     void setBorderRadius( double );
@@ -105,9 +105,9 @@ public:
     void setTextPen( const QPen & );
     QPen textPen() const;
 
-    virtual void draw( QPainter *p,
+    virtual void draw( QPainter *,
         const QwtScaleMap &xMap, const QwtScaleMap &yMap,
-        const QRectF &rect ) const;
+        const QRectF &canvasRect ) const;
 
     void clearLegend();
 
@@ -117,13 +117,13 @@ public:
     virtual QRect geometry( const QRectF &canvasRect ) const;
 
     virtual QSize minimumSize( const QwtLegendData & ) const;
-    virtual int heightForWidth( const QwtLegendData &, int w ) const;
+    virtual int heightForWidth( const QwtLegendData &, int width ) const;
 
     QList< const QwtPlotItem * > plotItems() const;
     QList< QRect > legendGeometries( const QwtPlotItem * ) const;
 
 protected:
-    virtual void drawLegendData( QPainter *painter, 
+    virtual void drawLegendData( QPainter *painter,
         const QwtPlotItem *, const QwtLegendData &, const QRectF & ) const;
 
     virtual void drawBackground( QPainter *, const QRectF &rect ) const;