Initial work on virtual file system support for the WebKitGTK+ backend. It now suppor...

[wxWidgets.git] / include / wx / dataview.h

diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index b0c7fde7afd2c6f64a8cb47ed5bb11427119d4c0..be3ce240a8923416c67e35c393c0cea55926234f 100644 (file)
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -125,9 +125,9 @@ public:
     virtual bool ItemsChanged( const wxDataViewItemArray &items );
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col ) = 0;
     virtual bool Cleared() = 0;
-    
-    // this is needed for the virtual list model under GTK+
-    virtual bool BeforeReset( size_t WXUNUSED(old_size), size_t WXUNUSED(new_size) ) { return true; }
+
+    // some platforms, such as GTK+, may need a two step procedure for ::Reset()
+    virtual bool BeforeReset() { return true; }
     virtual bool AfterReset() { return Cleared(); }
 
     virtual void Resort() = 0;
@@ -163,7 +163,7 @@ public:
     void SetItalic( bool set ) { m_italic = set; }
 
     // accessors
-    bool HasColour() const { return m_colour.Ok(); }
+    bool HasColour() const { return m_colour.IsOk(); }
     const wxColour& GetColour() const { return m_colour; }
 
     bool HasFont() const { return m_bold || m_italic; }
@@ -172,6 +172,9 @@ public:
 
     bool IsDefault() const { return !(HasColour() || HasFont()); }
 
+    // Return the font based on the given one with this attribute applied to it.
+    wxFont GetEffectiveFont(const wxFont& font) const;
+
 private:
     wxColour m_colour;
     bool     m_bold;
@@ -231,6 +234,13 @@ public:
         return false;
     }
 
+    // Override this if you want to disable specific items
+    virtual bool IsEnabled(const wxDataViewItem &WXUNUSED(item),
+                           unsigned int WXUNUSED(col)) const
+    {
+        return true;
+    }
+
     // define hierachy
     virtual wxDataViewItem GetParent( const wxDataViewItem &item ) const = 0;
     virtual bool IsContainer( const wxDataViewItem &item ) const = 0;
@@ -249,8 +259,8 @@ public:
     bool ValueChanged( const wxDataViewItem &item, unsigned int col );
     bool Cleared();
 
-    // this is needed for the virtual list model under GTK+
-    bool BeforeReset( size_t old_size, size_t new_size );
+    // some platforms, such as GTK+, may need a two step procedure for ::Reset()
+    bool BeforeReset();
     bool AfterReset();
 
 
@@ -301,10 +311,18 @@ public:
         return false;
     }
 
+    virtual bool IsEnabledByRow(unsigned int WXUNUSED(row),
+                                unsigned int WXUNUSED(col)) const
+    {
+        return true;
+    }
+
 
     // helper methods provided by list models only
     virtual unsigned GetRow( const wxDataViewItem &item ) const = 0;
 
+    // returns the number of rows
+    virtual unsigned int GetCount() const = 0;
 
     // implement some base class pure virtual directly
     virtual wxDataViewItem
@@ -339,6 +357,12 @@ public:
         return GetAttrByRow( GetRow(item), col, attr );
     }
 
+    virtual bool IsEnabled(const wxDataViewItem &item, unsigned int col) const
+    {
+        return IsEnabledByRow( GetRow(item), col );
+    }
+
+
     virtual bool IsListModel() const { return true; }
 };
 
@@ -677,6 +701,12 @@ public:
     virtual void HitTest( const wxPoint & point, wxDataViewItem &item, wxDataViewColumn* &column ) const = 0;
     virtual wxRect GetItemRect( const wxDataViewItem & item, const wxDataViewColumn *column = NULL ) const = 0;
 
+    virtual bool SetRowHeight( int WXUNUSED(rowHeight) ) { return false; }
+
+    virtual void StartEditor( const wxDataViewItem & WXUNUSED(item),
+                              unsigned int WXUNUSED(column) )
+        { }
+
 #if wxUSE_DRAG_AND_DROP
     virtual bool EnableDragSource(const wxDataFormat& WXUNUSED(format))
         { return false; }
@@ -733,7 +763,8 @@ public:
         m_column(NULL),
         m_pos(-1,-1),
         m_cacheFrom(0),
-        m_cacheTo(0)
+        m_cacheTo(0),
+        m_editCancelled(false)
 #if wxUSE_DRAG_AND_DROP
         , m_dataObject(NULL),
         m_dataBuffer(NULL),
@@ -748,9 +779,10 @@ public:
         m_model(event.m_model),
         m_value(event.m_value),
         m_column(event.m_column),
-        m_pos(m_pos),
+        m_pos(event.m_pos),
         m_cacheFrom(event.m_cacheFrom),
-        m_cacheTo(event.m_cacheTo)
+        m_cacheTo(event.m_cacheTo),
+        m_editCancelled(event.m_editCancelled)
 #if wxUSE_DRAG_AND_DROP
         , m_dataObject(event.m_dataObject),
         m_dataFormat(event.m_dataFormat),
@@ -771,6 +803,10 @@ public:
     const wxVariant &GetValue() const { return m_value; }
     void SetValue( const wxVariant &value ) { m_value = value; }
 
+    // for wxEVT_COMMAND_DATAVIEW_ITEM_EDITING_DONE only
+    bool IsEditCancelled() const { return m_editCancelled; }
+    void SetEditCanceled(bool editCancelled) { m_editCancelled = editCancelled; }
+
     // for wxEVT_DATAVIEW_COLUMN_HEADER_CLICKED only
     void SetDataViewColumn( wxDataViewColumn *col ) { m_column = col; }
     wxDataViewColumn *GetDataViewColumn() const { return m_column; }
@@ -810,6 +846,7 @@ protected:
     wxPoint             m_pos;
     int                 m_cacheFrom;
     int                 m_cacheTo;
+    bool                m_editCancelled;
 
 #if wxUSE_DRAG_AND_DROP
     wxDataObject       *m_dataObject;
@@ -1148,7 +1185,7 @@ public:
 
     wxDataViewItem GetNthChild( const wxDataViewItem& parent, unsigned int pos ) const;
     int GetChildCount( const wxDataViewItem& parent ) const;
-    
+
     void SetItemText( const wxDataViewItem& item, const wxString &text );
     wxString GetItemText( const wxDataViewItem& item ) const;
     void SetItemIcon( const wxDataViewItem& item, const wxIcon &icon );