Improve print preview appearance and functionality.

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

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index 289b765d80f2beeb7ac9eff95f4b9af1a9a4571e..6d414fd09d20308b3cc8a22ee7d0a3e1d33fb5b0 100644 (file)
--- a/include/wx/sizer.h
+++ b/include/wx/sizer.h
@@ -510,7 +510,7 @@ public:
     wxSizerItem* Add( int width, int height, const wxSizerFlags& flags);
     wxSizerItem* Add( wxSizerItem *item);
 
-    wxSizerItem* AddSpacer(int size);
+    virtual wxSizerItem *AddSpacer(int size);
     wxSizerItem* AddStretchSpacer(int prop = 1);
 
     wxSizerItem* Insert(size_t index,
@@ -542,7 +542,11 @@ public:
                         int width,
                         int height,
                         const wxSizerFlags& flags);
-    virtual wxSizerItem* Insert( size_t index, wxSizerItem *item);
+
+    // NB: do _not_ override this function in the derived classes, this one is
+    //     virtual for compatibility reasons only to allow old code overriding
+    //     it to continue to work, override DoInsert() instead in the new code
+    virtual wxSizerItem* Insert(size_t index, wxSizerItem *item);
 
     wxSizerItem* InsertSpacer(size_t index, int size);
     wxSizerItem* InsertStretchSpacer(size_t index, int prop = 1);
@@ -713,6 +717,10 @@ protected:
     virtual bool DoSetItemMinSize( wxSizer *sizer, int width, int height );
     virtual bool DoSetItemMinSize( size_t index, int width, int height );
 
+    // insert a new item into m_children at given index and return the item
+    // itself
+    virtual wxSizerItem* DoInsert(size_t index, wxSizerItem *item);
+
 private:
     DECLARE_CLASS(wxSizer)
 };
@@ -733,8 +741,6 @@ public:
     wxGridSizer( int rows, int cols, int vgap, int hgap );
     wxGridSizer( int rows, int cols, const wxSize& gap );
 
-    virtual wxSizerItem *Insert(size_t index, wxSizerItem *item);
-
     virtual void RecalcSizes();
     virtual wxSize CalcMin();
 
@@ -774,6 +780,8 @@ protected:
     int    m_vgap;
     int    m_hgap;
 
+    virtual wxSizerItem *DoInsert(size_t index, wxSizerItem *item);
+
     void SetItemBounds( wxSizerItem *item, int x, int y, int w, int h );
 
     // returns the number of columns/rows needed for the current total number
@@ -913,6 +921,8 @@ public:
                       wxT("invalid value for wxBoxSizer orientation") );
     }
 
+    virtual wxSizerItem *AddSpacer(int size);
+
     int GetOrientation() const { return m_orient; }
 
     bool IsVertical() const { return m_orient == wxVERTICAL; }
@@ -1103,6 +1113,12 @@ inline void wxSizerItem::SetSpacer(int width, int height)
 
 #endif // WXWIN_COMPATIBILITY_2_8
 
+inline wxSizerItem*
+wxSizer::Insert(size_t index, wxSizerItem *item)
+{
+    return DoInsert(index, item);
+}
+
 
 inline wxSizerItem*
 wxSizer::Add( wxSizerItem *item )