X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/53a2db124c633f80bdb16336084262037d879a2c..8591c946952a90363546812d2d9bf5549733649e:/include/wx/gbsizer.h

diff --git a/include/wx/gbsizer.h b/include/wx/gbsizer.h
index 2779243f52..f62f891954 100644
--- a/include/wx/gbsizer.h
+++ b/include/wx/gbsizer.h
@@ -53,20 +53,46 @@ private:
 class WXDLLIMPEXP_CORE wxGBSpan
 {
 public:
-    wxGBSpan() : m_rowspan(1), m_colspan(1) {}
-    wxGBSpan(int rowspan, int colspan) : m_rowspan(rowspan), m_colspan(colspan) {}
+    wxGBSpan() { Init(); }
+    wxGBSpan(int rowspan, int colspan)
+    {
+        // Initialize the members to valid values as not doing it may result in
+        // infinite loop in wxGBSizer code if the user passed 0 for any of
+        // them, see #12934.
+        Init();
+
+        SetRowspan(rowspan);
+        SetColspan(colspan);
+    }
 
     // default copy ctor and assignment operator are okay.
 
     int GetRowspan() const { return m_rowspan; }
     int GetColspan() const { return m_colspan; }
-    void SetRowspan(int rowspan) { m_rowspan = rowspan; }
-    void SetColspan(int colspan) { m_colspan = colspan; }
+    void SetRowspan(int rowspan)
+    {
+        wxCHECK_RET( rowspan > 0, "Row span should be strictly positive" );
+
+        m_rowspan = rowspan;
+    }
+
+    void SetColspan(int colspan)
+    {
+        wxCHECK_RET( colspan > 0, "Column span should be strictly positive" );
+
+        m_colspan = colspan;
+    }
 
     bool operator==(const wxGBSpan& o) const { return m_rowspan == o.m_rowspan && m_colspan == o.m_colspan; }
     bool operator!=(const wxGBSpan& o) const { return !(*this == o); }
 
 private:
+    void Init()
+    {
+        m_rowspan =
+        m_colspan = 1;
+    }
+
     int m_rowspan;
     int m_colspan;
 };
@@ -156,7 +182,7 @@ protected:
 
 private:
     DECLARE_DYNAMIC_CLASS(wxGBSizerItem)
-    DECLARE_NO_COPY_CLASS(wxGBSizerItem)
+    wxDECLARE_NO_COPY_CLASS(wxGBSizerItem);
 };
 
 
@@ -286,6 +312,7 @@ public:
 
 protected:
     wxGBPosition FindEmptyCell();
+    void AdjustForOverflow();
 
     wxSize m_emptyCellSize;
 
@@ -293,7 +320,7 @@ protected:
 private:
 
     DECLARE_CLASS(wxGridBagSizer)
-    DECLARE_NO_COPY_CLASS(wxGridBagSizer)
+    wxDECLARE_NO_COPY_CLASS(wxGridBagSizer);
 };
 
 //---------------------------------------------------------------------------