Fix background drawing in EVT_ERASE_BACKGROUND handler in erase sample.

[wxWidgets.git] / src / common / clipcmn.cpp

diff --git a/src/common/clipcmn.cpp b/src/common/clipcmn.cpp
index 4b9225b04259b4b5d658d2759deaddb7260af35e..2781a967d797bb1ed9b74a47fe4399e7c983d78b 100644 (file)
--- a/src/common/clipcmn.cpp
+++ b/src/common/clipcmn.cpp
@@ -29,9 +29,45 @@
 #include "wx/clipbrd.h"
 
 #ifndef WX_PRECOMP
+    #include "wx/dataobj.h"
     #include "wx/module.h"
 #endif
 
+// ---------------------------------------------------------
+// wxClipboardEvent
+// ---------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxClipboardEvent,wxEvent)
+
+wxDEFINE_EVENT( wxEVT_CLIPBOARD_CHANGED, wxClipboardEvent );
+
+bool wxClipboardEvent::SupportsFormat( const wxDataFormat &format ) const
+{
+#ifdef __WXGTK20__
+    for (wxVector<wxDataFormat>::size_type n = 0; n < m_formats.size(); n++)
+    {
+        if (m_formats[n] == format)
+            return true;
+    }
+
+    return false;
+#else
+    // All other ports just query the clipboard directly
+    // from here
+    wxClipboard* clipboard = (wxClipboard*) GetEventObject();
+    return clipboard->IsSupported( format );
+#endif
+}
+
+void wxClipboardEvent::AddFormat(const wxDataFormat& format)
+{
+    m_formats.push_back( format );
+}
+
+// ---------------------------------------------------------
+// wxClipboardBase
+// ---------------------------------------------------------
+
 static wxClipboard *gs_clipboard = NULL;
 
 /*static*/ wxClipboard *wxClipboardBase::Get()
@@ -43,6 +79,19 @@ static wxClipboard *gs_clipboard = NULL;
     return gs_clipboard;
 }
 
+bool wxClipboardBase::IsSupportedAsync( wxEvtHandler *sink )
+{
+    // We just imitate an asynchronous API on most platforms.
+    // This method is overridden uner GTK.
+    wxClipboardEvent *event = new wxClipboardEvent(wxEVT_CLIPBOARD_CHANGED);
+    event->SetEventObject( this );
+
+    sink->QueueEvent( event );
+
+    return true;
+}
+
+
 // ----------------------------------------------------------------------------
 // wxClipboardModule: module responsible for destroying the global clipboard
 // object