+// Make sure the child window sizes are updated. This is useful
+// for reducing flicker by updating the sizes before a
+// window is shown, if you know the overall size is correct.
+void wxSplitterWindow::UpdateSize()
+{
+ m_checkRequestedSashPosition = true;
+ SizeWindows();
+ m_checkRequestedSashPosition = false;
+}
+
+bool wxSplitterWindow::DoSendEvent(wxSplitterEvent& event)
+{
+ return !GetEventHandler()->ProcessEvent(event) || event.IsAllowed();
+}
+
+wxSize wxSplitterWindow::DoGetBestSize() const
+{
+ // get best sizes of subwindows
+ wxSize size1, size2;
+ if ( m_windowOne )
+ size1 = m_windowOne->GetEffectiveMinSize();
+ if ( m_windowTwo )
+ size2 = m_windowTwo->GetEffectiveMinSize();
+
+ // sum them
+ //
+ // pSash points to the size component to which sash size must be added
+ int *pSash;
+ wxSize sizeBest;
+ if ( m_splitMode == wxSPLIT_VERTICAL )
+ {
+ sizeBest.y = wxMax(size1.y, size2.y);
+ sizeBest.x = wxMax(size1.x, m_minimumPaneSize) +
+ wxMax(size2.x, m_minimumPaneSize);
+
+ pSash = &sizeBest.x;
+ }
+ else // wxSPLIT_HORIZONTAL
+ {
+ sizeBest.x = wxMax(size1.x, size2.x);
+ sizeBest.y = wxMax(size1.y, m_minimumPaneSize) +
+ wxMax(size2.y, m_minimumPaneSize);
+
+ pSash = &sizeBest.y;
+ }
+
+ // account for the border and the sash
+ int border = 2*GetBorderSize();
+ *pSash += GetSashSize();
+ sizeBest.x += border;
+ sizeBest.y += border;
+
+ return sizeBest;
+}
+
+// ---------------------------------------------------------------------------
+// wxSplitterWindow virtual functions: they now just generate the events
+// ---------------------------------------------------------------------------
+
+bool wxSplitterWindow::OnSashPositionChange(int WXUNUSED(newSashPosition))
+{
+ // always allow by default
+ return true;
+}
+
+int wxSplitterWindow::OnSashPositionChanging(int newSashPosition)