X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8b492f67ab10417d061556f97b7298ff37055393..92153555cf08cc818d6f4becfc1576d9c2add023:/include/wx/sizer.h

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index 9a686c4fee..f4b0b4ba8a 100644
--- 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,
@@ -724,16 +724,32 @@ private:
 class WXDLLIMPEXP_CORE wxGridSizer: public wxSizer
 {
 public:
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxGridSizer( int cols, int vgap, int hgap );
+    wxGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
     wxGridSizer( int rows, int cols, int vgap, int hgap );
-    wxGridSizer( int cols, int vgap = 0, int hgap = 0 );
+    wxGridSizer( int rows, int cols, const wxSize& gap );
 
     virtual wxSizerItem *Insert(size_t index, wxSizerItem *item);
 
     virtual void RecalcSizes();
     virtual wxSize CalcMin();
 
-    void SetCols( int cols )    { m_cols = cols; }
-    void SetRows( int rows )    { m_rows = rows; }
+    void SetCols( int cols )
+    {
+        wxASSERT_MSG( cols >= 0, "Number of columns must be non-negative");
+        m_cols = cols;
+    }
+
+    void SetRows( int rows )
+    {
+        wxASSERT_MSG( rows >= 0, "Number of rows must be non-negative");
+        m_rows = rows;
+    }
+
     void SetVGap( int gap )     { m_vgap = gap; }
     void SetHGap( int gap )     { m_hgap = gap; }
     int GetCols() const         { return m_cols; }
@@ -741,17 +757,49 @@ public:
     int GetVGap() const         { return m_vgap; }
     int GetHGap() const         { return m_hgap; }
 
+    int GetEffectiveColsCount() const   { return m_cols ? m_cols : CalcCols(); }
+    int GetEffectiveRowsCount() const   { return m_rows ? m_rows : CalcRows(); }
+
+    // return the number of total items and the number of columns and rows
+    // (for internal use only)
+    int CalcRowsCols(int& rows, int& cols) const;
+
 protected:
+    // the number of rows/columns in the sizer, if 0 then it is determined
+    // dynamically depending on the total number of items
     int    m_rows;
     int    m_cols;
+
+    // gaps between rows and columns
     int    m_vgap;
     int    m_hgap;
 
-    // return the number of total items and the number of columns and rows
-    int CalcRowsCols(int& rows, int& cols) const;
-
     void SetItemBounds( wxSizerItem *item, int x, int y, int w, int h );
 
+    // returns the number of columns/rows needed for the current total number
+    // of children (and the fixed number of rows/columns)
+    int CalcCols() const
+    {
+        wxCHECK_MSG
+        (
+            m_rows, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_rows - 1) / m_rows;
+    }
+
+    int CalcRows() const
+    {
+        wxCHECK_MSG
+        (
+            m_cols, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_cols - 1) / m_cols;
+    }
+
 private:
     DECLARE_CLASS(wxGridSizer)
 };
@@ -777,11 +825,17 @@ enum wxFlexSizerGrowMode
 class WXDLLIMPEXP_CORE wxFlexGridSizer: public wxGridSizer
 {
 public:
-    // ctors/dtor
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxFlexGridSizer( int cols, int vgap, int hgap );
+    wxFlexGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
     wxFlexGridSizer( int rows, int cols, int vgap, int hgap );
-    wxFlexGridSizer( int cols, int vgap = 0, int hgap = 0 );
-    virtual ~wxFlexGridSizer();
+    wxFlexGridSizer( int rows, int cols, const wxSize& gap );
 
+    // dtor
+    virtual ~wxFlexGridSizer();
 
     // set the rows/columns which will grow (the others will remain of the
     // constant initial size)
@@ -856,9 +910,11 @@ public:
         m_totalProportion = 0;
 
         wxASSERT_MSG( m_orient == wxHORIZONTAL || m_orient == wxVERTICAL,
-                      _T("invalid value for wxBoxSizer orientation") );
+                      wxT("invalid value for wxBoxSizer orientation") );
     }
 
+    virtual wxSizerItem *AddSpacer(int size);
+
     int GetOrientation() const { return m_orient; }
 
     bool IsVertical() const { return m_orient == wxVERTICAL; }
@@ -968,6 +1024,10 @@ private:
 
 #endif // wxUSE_STATBOX
 
+//---------------------------------------------------------------------------
+// wxStdDialogButtonSizer
+//---------------------------------------------------------------------------
+
 #if wxUSE_BUTTON
 
 class WXDLLIMPEXP_CORE wxStdDialogButtonSizer: public wxBoxSizer