X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/223d09f6b523aac674ef9b72a883dfa8d37c5d4e..5f9fd7ea86d211e3681a71c9f70303aa72b5de3c:/src/msw/choice.cpp

diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index d157992171..a6144b1da2 100644
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -32,13 +32,12 @@
     #include "wx/choice.h"
     #include "wx/utils.h"
     #include "wx/log.h"
+    #include "wx/settings.h"
 #endif
 
 #include "wx/msw/private.h"
 
-#if !USE_SHARED_LIBRARY
     IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
-#endif
 
 // ============================================================================
 // implementation
@@ -75,6 +74,10 @@ bool wxChoice::Create(wxWindow *parent,
     if ( !MSWCreateControl(wxT("COMBOBOX"), msStyle) )
         return FALSE;
 
+    // A choice/combobox normally has a white background (or other, depending
+    // on global settings) rather than inheriting the parent's background colour.
+    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+
     for ( int i = 0; i < n; i++ )
     {
         Append(choices[i]);
@@ -85,6 +88,11 @@ bool wxChoice::Create(wxWindow *parent,
     return TRUE;
 }
 
+wxChoice::~wxChoice()
+{
+    Free();
+}
+
 // ----------------------------------------------------------------------------
 // adding/deleting items to/from the list
 // ----------------------------------------------------------------------------
@@ -104,14 +112,33 @@ void wxChoice::Delete(int n)
 {
     wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
 
+    if ( HasClientObjectData() )
+    {
+        delete GetClientObject(n);
+    }
+
     SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
 }
 
 void wxChoice::Clear()
 {
+    Free();
+
     SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);
 }
 
+void wxChoice::Free()
+{
+    if ( HasClientObjectData() )
+    {
+        size_t count = GetCount();
+        for ( size_t n = 0; n < count; n++ )
+        {
+            delete GetClientObject(n);
+        }
+    }
+}
+
 // ----------------------------------------------------------------------------
 // selection
 // ----------------------------------------------------------------------------
@@ -157,10 +184,20 @@ int wxChoice::FindString(const wxString& s) const
 #endif // Watcom/!Watcom
 }
 
+void wxChoice::SetString(int n, const wxString& s)
+{
+    wxFAIL_MSG(wxT("not implemented"));
+
+#if 0 // should do this, but no Insert() so far
+    Delete(n);
+    Insert(n + 1, s);
+#endif
+}
+
 wxString wxChoice::GetString(int n) const
 {
     size_t len = (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0);
-    wxString str = "";
+    wxString str;
     if (len) {
         if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n,
                            (LPARAM)str.GetWriteBuf(len)) == CB_ERR ) {
@@ -176,7 +213,7 @@ wxString wxChoice::GetString(int n) const
 // client data
 // ----------------------------------------------------------------------------
 
-void wxChoice::DoSetClientData( int n, void* clientData )
+void wxChoice::DoSetItemClientData( int n, void* clientData )
 {
     if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR )
     {
@@ -184,7 +221,7 @@ void wxChoice::DoSetClientData( int n, void* clientData )
     }
 }
 
-void* wxChoice::DoGetClientData( int n ) const
+void* wxChoice::DoGetItemClientData( int n ) const
 {
     LPARAM rc = SendMessage(GetHwnd(), CB_GETITEMDATA, n, 0);
     if ( rc == CB_ERR )
@@ -192,20 +229,20 @@ void* wxChoice::DoGetClientData( int n ) const
         wxLogLastError(wxT("CB_GETITEMDATA"));
 
         // unfortunately, there is no way to return an error code to the user
-	rc = (LPARAM) NULL;
+        rc = (LPARAM) NULL;
     }
 
     return (void *)rc;
 }
 
-void wxChoice::DoSetClientObject( int n, wxClientData* clientData )
+void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )
 {
-    DoSetClientData(n, clientData);
+    DoSetItemClientData(n, clientData);
 }
 
-wxClientData* wxChoice::DoGetClientObject( int n ) const
+wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 {
-    return (wxClientData *)DoGetClientData(n);
+    return (wxClientData *)DoGetItemClientData(n);
 }
 
 // ----------------------------------------------------------------------------
@@ -224,7 +261,7 @@ void wxChoice::DoSetSize(int x, int y,
     wxControl::DoSetSize(x, y, width, -1, sizeFlags);
 }
 
-wxSize wxChoice::DoGetBestSize()
+wxSize wxChoice::DoGetBestSize() const
 {
     // find the widest string
     int wLine;
@@ -283,11 +320,19 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
         return FALSE;
     }
 
-    wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId);
-    event.SetInt(GetSelection());
-    event.SetEventObject(this);
-    event.SetString(GetStringSelection());
-    ProcessCommand(event);
+    int n = GetSelection();
+    if (n > -1)
+    {
+        wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId);
+        event.SetInt(n);
+        event.SetEventObject(this);
+        event.SetString(GetStringSelection());
+        if ( HasClientObjectData() )
+            event.SetClientObject( GetClientObject(n) );
+        else if ( HasClientUntypedData() )
+            event.SetClientData( GetClientData(n) );
+        ProcessCommand(event);
+    }
 
     return TRUE;
 }