Fix for crash when opening empty node

[wxWidgets.git] / src / os2 / combobox.cpp

diff --git a/src/os2/combobox.cpp b/src/os2/combobox.cpp
index 5e86909cb97d724c22f42492c3c5a6008b7267c1..d3ff05da08fab752c49dda6e1cea85648335d8b3 100644 (file)
--- a/src/os2/combobox.cpp
+++ b/src/os2/combobox.cpp
@@ -14,11 +14,12 @@
 
 #if wxUSE_COMBOBOX
 
+#include "wx/combobox.h"
+
 #ifndef WX_PRECOMP
     #include "wx/settings.h"
 #endif
 
-#include "wx/combobox.h"
 #include "wx/clipbrd.h"
 #include "wx/os2/private.h"
 
@@ -36,41 +37,35 @@ static WXFARPROC gfnWndprocEdit     = (WXFARPROC)NULL;
 
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
 
-bool wxComboBox::OS2Command(
-  WXUINT                            uParam
-, WXWORD                            WXUNUSED(wId)
-)
+bool wxComboBox::OS2Command( WXUINT uParam, WXWORD WXUNUSED(wId) )
 {
-    long                            lSel = -1L;
-    wxString                        sValue;
+    long lSel = GetSelection();
+    wxString sValue;
 
     switch (uParam)
     {
         case CBN_LBSELECT:
-            if (GetSelection() > -1)
+            if (lSel > -1)
             {
-                wxCommandEvent      vEvent( wxEVT_COMMAND_COMBOBOX_SELECTED
-                                           ,GetId()
-                                          );
+                wxCommandEvent vEvent( wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
 
-                vEvent.SetInt(GetSelection());
+                vEvent.SetInt(lSel);
                 vEvent.SetEventObject(this);
                 vEvent.SetString(GetStringSelection());
+
                 ProcessCommand(vEvent);
             }
             break;
 
         case CBN_EFCHANGE:
             {
-                wxCommandEvent      vEvent( wxEVT_COMMAND_TEXT_UPDATED
-                                           ,GetId()
-                                          );
+                wxCommandEvent vEvent( wxEVT_COMMAND_TEXT_UPDATED, GetId() );
 
                 if (lSel == -1L)
                     sValue = GetValue();
                 else
-                    SetValue(sValue);
-                vEvent.SetString(GetValue());
+                    sValue = GetStringSelection();
+                vEvent.SetString(sValue);
                 vEvent.SetEventObject(this);
                 ProcessCommand(vEvent);
             }
@@ -134,8 +129,9 @@ bool wxComboBox::Create(
     lSstyle = WS_TABSTOP   |
               WS_VISIBLE;
 
-    if (lStyle & wxCLIP_SIBLINGS )
-        lSstyle |= WS_CLIPSIBLINGS;
+    // clipping siblings does not yet work
+    // if (lStyle & wxCLIP_SIBLINGS )
+    //     lSstyle |= WS_CLIPSIBLINGS;
     if (lStyle & wxCB_READONLY)
         lSstyle |= CBS_DROPDOWNLIST;
     else if (lStyle & wxCB_SIMPLE)
@@ -165,6 +161,14 @@ bool wxComboBox::Create(
             ,rSize.x
             ,rSize.y
            );
+
+    // Set height to use with sizers i.e. without the dropdown listbox
+    wxFont vFont = GetFont();
+    int nEditHeight;
+    wxGetCharSize( GetHWND(), NULL, &nEditHeight, &vFont );
+    nEditHeight = EDIT_HEIGHT_FROM_CHAR_HEIGHT(nEditHeight);
+    SetInitialSize(wxSize(-1,nEditHeight+4));   // +2x2 for the border
+
     if (!rsValue.empty())
     {
         SetValue(rsValue);
@@ -177,6 +181,11 @@ bool wxComboBox::Create(
     return true;
 } // end of wxComboBox::Create
 
+wxString wxComboBox::GetValue() const
+{
+    return wxGetWindowText(GetHwnd());
+}
+
 void wxComboBox::SetValue(
   const wxString&                   rsValue
 )
@@ -184,7 +193,7 @@ void wxComboBox::SetValue(
     if ( HasFlag(wxCB_READONLY) )
         SetStringSelection(rsValue);
     else
-        ::WinSetWindowText(GetHwnd(), (PSZ)rsValue.c_str());
+        ::WinSetWindowText(GetHwnd(), rsValue.c_str());
 } // end of wxComboBox::SetValue
 
 //
@@ -290,7 +299,7 @@ void wxComboBox::Replace( long lFrom,
     // Now replace with 'value', by pasting.
     //
     wxSetClipboardData( wxDF_TEXT
-                       ,(wxObject *)rsValue.c_str()
+                       ,rsValue.c_str()
                        ,0
                        ,0
                       );
@@ -319,14 +328,11 @@ void wxComboBox::Remove( long lFrom, long lTo)
 #endif
 } // end of wxComboBox::Remove
 
-void wxComboBox::SetSelection(
-  long                              lFrom
-, long                              lTo
-)
+void wxComboBox::SetSelection( long lFrom, long lTo )
 {
-    HWND                            hWnd = GetHwnd();
-    long                            lFromChar = 0;
-    long                            lToChar   = 0;
+    HWND hWnd = GetHwnd();
+    long lFromChar = 0;
+    long lToChar   = 0;
 
     //
     // If from and to are both -1, it means
@@ -346,22 +352,6 @@ void wxComboBox::SetSelection(
                 );
 } // end of wxComboBox::SetSelection
 
-void wxComboBox::DoSetSize(
-  int                               nX
-, int                               nY
-, int                               nWidth
-, int                               nHeight
-, int                               nSizeFlags
-)
-{
-    wxControl::DoSetSize( nX
-                         ,nY
-                         ,nWidth
-                         ,nHeight
-                         ,nSizeFlags
-                        );
-} // end of wxComboBox::DoSetSize
-
 bool wxComboBox::ProcessEditMsg(
   WXUINT                            uMsg
 , WXWPARAM                          wParam
@@ -399,7 +389,7 @@ bool wxComboBox::ProcessEditMsg(
                 return(HandleKillFocus((WXHWND)(HWND)wParam));
     }
     return false;
-} // end of WinGuiBase_CComboBox::ProcessEditMsg
+} // end of wxComboBox::ProcessEditMsg
 
 MRESULT EXPENTRY wxComboEditWndProc(
   HWND                              hWnd