handling nil images correctly, solves #12956

[wxWidgets.git] / src / osx / combobox_osx.cpp

diff --git a/src/osx/combobox_osx.cpp b/src/osx/combobox_osx.cpp
index 744ad7304a1a78660ee3fc3fe72a4c91f7973b5d..bf092f3772fdfacb043e0bbe96e6ae5fc4c3e95e 100644 (file)
--- a/src/osx/combobox_osx.cpp
+++ b/src/osx/combobox_osx.cpp
@@ -4,7 +4,7 @@
 // Author:      Stefan Csomor
 // Modified by:
 // Created:     1998-01-01
-// RCS-ID:      $Id: combobox_osx.cpp 58318 2009-01-23 08:36:16Z RR $
+// RCS-ID:      $Id$
 // Copyright:   (c) Stefan Csomor
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -21,8 +21,6 @@
 
 // work in progress
 
-IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
-
 wxComboBox::~wxComboBox()
 {
 }
@@ -122,15 +120,11 @@ int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
 // ----------------------------------------------------------------------------
 void wxComboBox::DoSetItemClientData(unsigned int n, void* clientData)
 {
-    wxCHECK_RET( IsValid(n), "invalid index" );
-
     m_datas[n] = (char*)clientData ;
 }
 
 void * wxComboBox::DoGetItemClientData(unsigned int n) const
 {
-    wxCHECK_MSG( IsValid(n), NULL, "invalid index" );
-
     return (void *)m_datas[n];
 }
 
@@ -147,7 +141,6 @@ void wxComboBox::DoDeleteOneItem(unsigned int n)
 void wxComboBox::DoClear()
 {
     GetComboPeer()->Clear();
-    SetValue(wxEmptyString);
 }
 
 void wxComboBox::GetSelection(long *from, long *to) const
@@ -187,12 +180,15 @@ int wxComboBox::FindString(const wxString& s, bool bCase) const
 
 wxString wxComboBox::GetString(unsigned int n) const
 {
+    wxCHECK_MSG( n < GetCount(), wxString(), "Invalid combobox index" );
+
     return GetComboPeer()->GetStringAtIndex(n);
 }
 
 wxString wxComboBox::GetStringSelection() const
 {
-    return GetString(GetSelection());
+    const int sel = GetSelection();
+    return sel == wxNOT_FOUND ? wxString() : GetString(sel);
 }
 
 void wxComboBox::SetString(unsigned int n, const wxString& s)
@@ -204,7 +200,8 @@ void wxComboBox::SetString(unsigned int n, const wxString& s)
 
 void wxComboBox::EnableTextChangedEvents(bool WXUNUSED(enable))
 {
-    wxFAIL_MSG("Method Not Implemented.");
+    // nothing to do here, events are never generated when we change the
+    // control value programmatically anyhow by Cocoa
 }
 
 bool wxComboBox::OSXHandleClicked( double WXUNUSED(timestampsec) )
@@ -217,11 +214,6 @@ bool wxComboBox::OSXHandleClicked( double WXUNUSED(timestampsec) )
     return true;
 }
 
-wxTextWidgetImpl* wxComboBox::GetTextPeer() const
-{
-    return dynamic_cast<wxTextWidgetImpl*> (m_peer);
-}
-
 wxComboWidgetImpl* wxComboBox::GetComboPeer() const
 {
     return dynamic_cast<wxComboWidgetImpl*> (m_peer);