avoiding nesting dcs on the same window concurrently

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

diff --git a/src/univ/combobox.cpp b/src/univ/combobox.cpp
index b9b03b00c30de251da08b03efa7a242c92b9049a..89130b4e3cc35fd1360f6d8758c712c4a53c70c9 100644 (file)
--- a/src/univ/combobox.cpp
+++ b/src/univ/combobox.cpp
@@ -44,6 +44,19 @@
 #include "wx/univ/inphand.h"
 #include "wx/univ/theme.h"
 
+// ----------------------------------------------------------------------------
+// wxStdComboBoxInputHandler: allows the user to open/close the combo from kbd
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxStdComboBoxInputHandler : public wxStdInputHandler
+{
+public:
+    wxStdComboBoxInputHandler(wxInputHandler *inphand);
+
+    virtual bool HandleKey(wxInputConsumer *consumer,
+                           const wxKeyEvent& event,
+                           bool pressed);
+};
 
 // ----------------------------------------------------------------------------
 // wxComboListBox is a listbox modified to be used as a popup window in a
@@ -131,7 +144,10 @@ wxString wxComboListBox::GetStringValue() const
 void wxComboListBox::SetStringValue(const wxString& value)
 {
     if ( !value.empty() )
-        wxListBox::SetStringSelection(value);
+    {
+        if (FindString(value) != wxNOT_FOUND)
+            wxListBox::SetStringSelection(value);
+    }
     else
         wxListBox::SetSelection(-1);
 }
@@ -370,10 +386,11 @@ int wxComboBox::FindString(const wxString& s, bool bCase) const
 
 void wxComboBox::SetSelection(int n)
 {
-    wxCHECK_RET( IsValid(n), _T("invalid index in wxComboBox::Select") );
+    wxCHECK_RET( (n == wxNOT_FOUND || IsValid(n)), _T("invalid index in wxComboBox::Select") );
 
     GetLBox()->SetSelection(n);
-    if ( GetTextCtrl() ) GetTextCtrl()->SetValue(GetLBox()->GetString(n));
+    if ( GetTextCtrl() )
+        GetTextCtrl()->SetValue(GetLBox()->GetString(n));
 }
 
 int wxComboBox::GetSelection() const
@@ -527,5 +544,12 @@ bool wxStdComboBoxInputHandler::HandleKey(wxInputConsumer *consumer,
     return wxStdInputHandler::HandleKey(consumer, event, pressed);
 }
 
+/* static */
+wxInputHandler *wxComboBox::GetStdInputHandler(wxInputHandler *handlerDef)
+{
+    static wxStdComboBoxInputHandler s_handler(handlerDef);
+
+    return &s_handler;
+}
 
 #endif // wxUSE_COMBOBOX