Implemented DoGetBestSize for wxListBox, (native) wxComboBox and

wxTextCtrl, and used it when wxSize(-1, -1) is passed to Create, to set
the initial size.
  Added wxDoChangeFont and wxXmStringToString helper functions, removed
the use of m_stringList in native wxComboBox, removed some duplicated code
in wxWindow.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19296 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/motif/combobox.h

@@ -91,6 +91,9 @@ protected:
     virtual void DoSetSize(int x, int y,
         int width, int height,
         int sizeFlags = wxSIZE_AUTO);
+private:
+    // only implemented for native combo box
+    void AdjustDropDownListSize();
 };
 
 #endif

include/wx/motif/listbox.h

@@ -88,6 +88,8 @@ public:
     virtual void DoToggleItem(int item, int x) {};
 #endif
 protected:
+    virtual wxSize DoGetBestSize() const;
+
     int       m_noItems;
     
     // List mapping positions->client data

include/wx/motif/private.h

@@ -64,6 +64,7 @@ extern void wxDoChangeForegroundColour(WXWidget widget,
 extern void wxDoChangeBackgroundColour(WXWidget widget,
                                        wxColour& backgroundColour,
                                        bool changeArmColour = FALSE);
+extern void wxDoChangeFont(WXWidget widget, wxFont& font);
 
 #define wxNO_COLORS   0x00
 #define wxBACK_COLORS 0x01
@@ -107,13 +108,20 @@ private:
     XmString m_string;
 };
 
+wxString wxXmStringToString( const XmString& xmString );
+
 // ----------------------------------------------------------------------------
 // Routines used in both wxTextCtrl/wxListBox and nativa wxComboBox
 // (defined in src/motif/listbox.cpp or src/motif/textctrl.cpp
 // ----------------------------------------------------------------------------
 
 int wxDoFindStringInList( Widget listWidget, const wxString& str );
-int wxDoGetSelectionInList(Widget listWidget);
+int wxDoGetSelectionInList( Widget listWidget );
+wxString wxDoGetStringInList( Widget listWidget, int n );
+wxSize wxDoGetListBoxBestSize( Widget listWidget, const wxWindow* window );
+
+wxSize wxDoGetSingleTextCtrlBestSize( Widget textWidget,
+                                      const wxWindow* window );
 
 // ----------------------------------------------------------------------------
 // executes one main loop iteration (implemented in src/motif/evtloop.cpp)

include/wx/motif/textctrl.h

@@ -133,7 +133,8 @@ public:
     
 protected:
     wxString  m_fileName;
-    
+
+    virtual wxSize DoGetBestSize() const;
 public:
     // Motif-specific
     void*     m_tempCallbackStruct;