X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/85a39457f9edb69bf287c6d244966b514ce0bdbc..39d169639b01d4902583d4e541746a93a156ab78:/src/msw/choice.cpp

diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index 8dc803b88b..0c0dbc10c7 100644
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -86,10 +86,7 @@ bool wxChoice::CreateAndInit(wxWindow *parent,
 
 
     // initialize the controls contents
-    for ( int i = 0; i < n; i++ )
-    {
-        Append(choices[i]);
-    }
+    Append(n, choices);
 
     // and now we may finally size the control properly (if needed)
     SetInitialSize(size);
@@ -629,6 +626,39 @@ int wxChoice::SetHeightSimpleComboBox(int nItems) const
     return EDIT_HEIGHT_FROM_CHAR_HEIGHT( cy ) * wxMin( wxMax( nItems, 3 ), 6 ) + hItem - 1;
 }
 
+// ----------------------------------------------------------------------------
+// Popup operations
+// ----------------------------------------------------------------------------
+
+void wxChoice::MSWDoPopupOrDismiss(bool show)
+{
+    wxASSERT_MSG( !HasFlag(wxCB_SIMPLE),
+                  wxT("can't popup/dismiss the list for simple combo box") );
+
+    // we *must* set focus to the combobox before showing or hiding the drop
+    // down as without this we get WM_LBUTTONDOWN messages with invalid HWND
+    // when hiding it (whether programmatically or manually) resulting in a
+    // crash when we pass them to IsDialogMessage()
+    //
+    // this can be seen in the combo page of the widgets sample under Windows 7
+    SetFocus();
+
+    ::SendMessage(GetHwnd(), CB_SHOWDROPDOWN, show, 0);
+}
+
+bool wxChoice::Show(bool show)
+{
+    if ( !wxChoiceBase::Show(show) )
+        return false;
+
+    // When hiding the combobox, we also need to hide its popup part as it
+    // doesn't happen automatically.
+    if ( !show && ::SendMessage(GetHwnd(), CB_GETDROPPEDSTATE, 0, 0) )
+        MSWDoPopupOrDismiss(false);
+
+    return true;
+}
+
 // ----------------------------------------------------------------------------
 // MSW message handlers
 // ----------------------------------------------------------------------------
@@ -761,7 +791,7 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 
 WXHBRUSH wxChoice::MSWControlColor(WXHDC hDC, WXHWND hWnd)
 {
-    if ( !IsEnabled() )
+    if ( !IsThisEnabled() )
         return MSWControlColorDisabled(hDC);
 
     return wxChoiceBase::MSWControlColor(hDC, hWnd);