implement Empty() using clear() instead of Truncate(0)

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

diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index fc800bcea4247f1284958e5b66a27ceab29fb78a..86ba1b502114f83264fd2f4e0299f36915440a0a 100644 (file)
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -23,17 +23,10 @@
 #include "wx/dynarray.h"
 #include "wx/icon.h"
 #include "wx/imaglist.h"
+#include "wx/weakref.h"
 
 class WXDLLIMPEXP_FWD_CORE wxDataFormat;
 
-#if defined(__WXGTK20__)
-    // for testing
-    // #define wxUSE_GENERICDATAVIEWCTRL 1
-#elif defined(__WXMAC__)
-#else
-    #define wxUSE_GENERICDATAVIEWCTRL 1
-#endif
-
 // ----------------------------------------------------------------------------
 // wxDataViewCtrl flags
 // ----------------------------------------------------------------------------
@@ -60,8 +53,9 @@ extern WXDLLIMPEXP_DATA_ADV(const wxChar) wxDataViewCtrlNameStr[];
 // the default minimal width of the columns:
 #define wxDVC_DEFAULT_MINWIDTH          30
 
-// the default alignment of wxDataViewRenderers:
-#define wxDVR_DEFAULT_ALIGNMENT         (wxALIGN_LEFT|wxALIGN_CENTRE_VERTICAL)
+// The default alignment of wxDataViewRenderers is to take
+// the alignment from the column it owns.
+#define wxDVR_DEFAULT_ALIGNMENT         -1
 
 
 // ---------------------------------------------------------
@@ -113,7 +107,7 @@ public:
     virtual void Resort() = 0;
 
     void SetOwner( wxDataViewModel *owner ) { m_owner = owner; }
-    wxDataViewModel *GetOwner()             { return m_owner; }
+    wxDataViewModel *GetOwner() const       { return m_owner; }
 
 private:
     wxDataViewModel *m_owner;
@@ -224,7 +218,7 @@ public:
     virtual bool HasDefaultCompare() const { return false; }
 
     // internal
-    virtual bool IsIndexListModel() const { return false; }
+    virtual bool IsVirtualListModel() const { return false; }
 
 protected:
     // the user should not delete this class directly: he should use DecRef() instead!
@@ -284,16 +278,80 @@ public:
     virtual unsigned int GetChildren( const wxDataViewItem &item, wxDataViewItemArray &children ) const;
 
     // internal
-    virtual bool IsIndexListModel() const { return true; }
+    virtual bool IsVirtualListModel() const { return false; }
     unsigned int GetLastIndex() const { return m_lastIndex; }
 
 private:
     wxDataViewItemArray m_hash;
     unsigned int m_lastIndex;
     bool m_ordered;
-    bool m_useHash;
 };
 
+// ---------------------------------------------------------
+// wxDataViewVirtualListModel
+// ---------------------------------------------------------
+
+#ifdef __WXMAC__
+// better than nothing
+typedef wxDataViewIndexListModel wxDataViewVirtualListModel;
+#else
+
+class WXDLLIMPEXP_ADV wxDataViewVirtualListModel: public wxDataViewModel
+{
+public:
+    wxDataViewVirtualListModel( unsigned int initial_size = 0 );
+    ~wxDataViewVirtualListModel();
+
+    virtual void GetValue( wxVariant &variant,
+                           unsigned int row, unsigned int col ) const = 0;
+
+    virtual bool SetValue( const wxVariant &variant,
+                           unsigned int row, unsigned int col ) = 0;
+
+    virtual bool GetAttr( unsigned int WXUNUSED(row), unsigned int WXUNUSED(col), wxDataViewItemAttr &WXUNUSED(attr) )
+        { return false; }
+
+    void RowPrepended();
+    void RowInserted( unsigned int before );
+    void RowAppended();
+    void RowDeleted( unsigned int row );
+    void RowsDeleted( const wxArrayInt &rows );
+    void RowChanged( unsigned int row );
+    void RowValueChanged( unsigned int row, unsigned int col );
+    void Reset( unsigned int new_size );
+
+    // convert to/from row/wxDataViewItem
+
+    unsigned int GetRow( const wxDataViewItem &item ) const;
+    wxDataViewItem GetItem( unsigned int row ) const;
+
+    // compare based on index
+
+    virtual int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
+                         unsigned int column, bool ascending );
+    virtual bool HasDefaultCompare() const;
+
+    // implement base methods
+
+    virtual void GetValue( wxVariant &variant,
+                           const wxDataViewItem &item, unsigned int col ) const;
+    virtual bool SetValue( const wxVariant &variant,
+                           const wxDataViewItem &item, unsigned int col );
+    virtual bool GetAttr( const wxDataViewItem &item, unsigned int col, wxDataViewItemAttr &attr );
+    virtual wxDataViewItem GetParent( const wxDataViewItem &item ) const;
+    virtual bool IsContainer( const wxDataViewItem &item ) const;
+    virtual unsigned int GetChildren( const wxDataViewItem &item, wxDataViewItemArray &children ) const;
+
+    // internal
+    virtual bool IsVirtualListModel() const { return true; }
+    unsigned int GetLastIndex() const { return m_lastIndex; }
+
+private:
+    wxDataViewItemArray m_hash;
+    unsigned int m_lastIndex;
+    bool m_ordered;
+};
+#endif
 
 //-----------------------------------------------------------------------------
 // wxDataViewEditorCtrlEvtHandler
@@ -347,12 +405,13 @@ public:
     wxDataViewRendererBase( const wxString &varianttype,
                             wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
                             int alignment = wxDVR_DEFAULT_ALIGNMENT );
+    ~wxDataViewRendererBase();
 
     virtual bool Validate( wxVariant& WXUNUSED(value) )
         { return true; }
 
     void SetOwner( wxDataViewColumn *owner )    { m_owner = owner; }
-    wxDataViewColumn* GetOwner()                { return m_owner; }
+    wxDataViewColumn* GetOwner() const          { return m_owner; }
 
     // renderer properties:
 
@@ -390,7 +449,7 @@ public:
 protected:
     wxString                m_variantType;
     wxDataViewColumn       *m_owner;
-    wxControl              *m_editorCtrl;
+    wxWeakRef<wxControl>    m_editorCtrl;
     wxDataViewItem          m_item; // for m_editorCtrl
 
     // internal utility:
@@ -411,6 +470,7 @@ public:
         : m_text(text), m_icon(icon)
     { }
     wxDataViewIconText( const wxDataViewIconText &other )
+        : wxObject()
     { m_icon = other.m_icon; m_text = other.m_text; }
 
     void SetText( const wxString &text ) { m_text = text; }
@@ -517,6 +577,7 @@ protected:
 #define wxDV_VERT_RULES              0x0008     // light vertical rules between columns
 
 #define wxDV_ROW_LINES               0x0010     // alternating colour in rows
+#define wxDV_VARIABLE_LINE_HEIGHT    0x0020     // variable line height
 
 class WXDLLIMPEXP_ADV wxDataViewCtrlBase: public wxControl
 {
@@ -629,6 +690,7 @@ public:
 
 
     virtual bool PrependColumn( wxDataViewColumn *col );
+    virtual bool InsertColumn( unsigned int pos, wxDataViewColumn *col );
     virtual bool AppendColumn( wxDataViewColumn *col );
 
     virtual unsigned int GetColumnCount() const = 0;
@@ -644,7 +706,7 @@ public:
         { return m_expander_column; }
 
     virtual wxDataViewColumn *GetSortingColumn() const = 0;
-
+    
     void SetIndent( int indent )
         { m_indent = indent ; DoSetIndent(); }
     int GetIndent() const
@@ -725,7 +787,7 @@ public:
     wxDataViewColumn *GetDataViewColumn() const { return m_column; }
 
     // for wxEVT_DATAVIEW_CONTEXT_MENU only
-    wxPoint GetPosition() const;
+    wxPoint GetPosition() const { return m_pos; }
     void SetPosition( int x, int y ) { m_pos.x = x; m_pos.y = y; }
 
     virtual wxEvent *Clone() const { return new wxDataViewEvent(*this); }
@@ -786,13 +848,13 @@ typedef void (wxEvtHandler::*wxDataViewEventFunction)(wxDataViewEvent&);
 #define EVT_DATAVIEW_COLUMN_SORTED(id, fn) wx__DECLARE_DATAVIEWEVT(COLUMN_SORTED, id, fn)
 #define EVT_DATAVIEW_COLUMN_REORDERED(id, fn) wx__DECLARE_DATAVIEWEVT(COLUMN_REORDERED, id, fn)
 
-#if defined(wxUSE_GENERICDATAVIEWCTRL)
-    #include "wx/generic/dataview.h"
-#elif defined(__WXGTK20__)
+
+#if defined(__WXGTK20__) && !defined(__WXUNIVERSAL__)
     #include "wx/gtk/dataview.h"
-#elif defined(__WXMAC__)
-    #include "wx/mac/dataview.h"
+#elif defined(__WXMAC__) && !defined(__WXUNIVERSAL__)
+    #include "wx/osx/dataview.h"
 #else
+    #define wxUSE_GENERICDATAVIEWCTRL
     #include "wx/generic/dataview.h"
 #endif