void SetOwner( wxDataViewColumn *owner ) { m_owner = owner; }
wxDataViewColumn* GetOwner() const { return m_owner; }
- // renderer properties:
+ // renderer value and attributes: SetValue() and SetAttr() are called
+ // before a cell is rendered using this renderer
+ virtual bool SetValue(const wxVariant& value) = 0;
+ virtual bool GetValue(wxVariant& value) const = 0;
- virtual bool SetValue( const wxVariant& WXUNUSED(value) ) = 0;
- virtual bool GetValue( wxVariant& WXUNUSED(value) ) const = 0;
+ virtual void SetAttr(const wxDataViewItemAttr& WXUNUSED(attr)) { }
wxString GetVariantType() const { return m_variantType; }
+ // renderer properties:
virtual void SetMode( wxDataViewCellMode mode ) = 0;
virtual wxDataViewCellMode GetMode() const = 0;
}
+ // Render the item using the current value (returned by GetValue()).
+ virtual bool Render(wxRect cell, wxDC *dc, int state) = 0;
+
+ // Return the size of the item appropriate to its current value.
+ virtual wxSize GetSize() const = 0;
+
// Define virtual function which are called when the item is activated
// (double-clicked or Enter is pressed on it), clicked or the user starts
// to drag it: by default they all simply return false indicating that the
{ return false; }
+ // Helper which can be used by Render() implementation in the derived
+ // classes: it will draw the text in the same manner as the standard
+ // renderers do.
+ virtual void RenderText(const wxString& text,
+ int xoffset,
+ wxRect cell,
+ wxDC *dc,
+ int state);
+
+
+ // Override the base class virtual method to simply store the attribute so
+ // that it can be accessed using GetAttr() from Render() if needed.
+ virtual void SetAttr(const wxDataViewItemAttr& attr) { m_attr = attr; }
+ const wxDataViewItemAttr& GetAttr() const { return m_attr; }
+
+
+ // Implementation only from now on
+
+ // Retrieve the DC to use for drawing. This is implemented in derived
+ // platform-specific classes.
+ virtual wxDC *GetDC() = 0;
+
+ // Prepare DC to use attributes and call Render().
+ void WXCallRender(wxRect rect, wxDC *dc, int state);
+
private:
+ wxDataViewItemAttr m_attr;
+
wxDECLARE_NO_COPY_CLASS(wxDataViewCustomRendererBase);
};