Improve sizer support in generic wxNotebook. Fix the widgets sample

to take advantage of it.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35328 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/generic/notebook.h

@@ -126,6 +126,8 @@ public:
   virtual void SetConstraintSizes(bool recurse = true);
   virtual bool DoPhase(int nPhase);
 
+  virtual wxSize CalcSizeFromPage(const wxSize& sizePage) const;
+
   // Implementation
 
   // wxNotebook on Motif uses a generic wxTabView to implement itself.

samples/widgets/widgets.cpp

@@ -327,7 +327,12 @@ WidgetsFrame::WidgetsFrame(const wxString& title)
     //style |= wxNB_NOPAGETHEME;
 
     m_book = new wxBookCtrl(m_panel, wxID_ANY, wxDefaultPosition,
-        wxDefaultSize, style);
+#ifdef __WXMOTIF__
+        wxSize(500, -1), // under Motif, height is a function of the width...
+#else
+        wxDefaultSize,
+#endif
+        style);
     InitBook();
 
 #ifndef __SMARTPHONE__

src/generic/notebook.cpp

@@ -622,6 +622,17 @@ void wxNotebook::OnPaint(wxPaintEvent& WXUNUSED(event) )
         m_tabView->Draw(dc);
 }
 
+wxSize wxNotebook::CalcSizeFromPage(const wxSize& sizePage) const
+{
+    // MBN: since the total tab height is really a function of the
+    // width, this should really call
+    // GetTotalTabHeightPretendingWidthIs(), but the current
+    // implementation will suffice, provided the wxNotebook has been
+    // created with a sensible initial width.
+    return wxSize( sizePage.x + 12,
+                   sizePage.y + m_tabView->GetTotalTabHeight() + 6 + 4 );
+}
+
 wxRect wxNotebook::GetAvailableClientSize()
 {
     int cw, ch;