DnD fixes

Image fixes
  Clipboard API


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@952 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/clipbrd.cpp

@@ -0,0 +1,86 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        clipbrd.cpp
+// Purpose:
+// Author:      Robert Roebling
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:   	wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation "clipbrd.h"
+#endif
+
+#include "wx/clipbrd.h"
+
+//-----------------------------------------------------------------------------
+// data
+//-----------------------------------------------------------------------------
+
+wxClipboard *wxTheClipboard = (wxClipboard*) NULL;
+
+//-----------------------------------------------------------------------------
+// functions
+//-----------------------------------------------------------------------------
+
+void wxInitClipboard()
+{
+  if (wxTheClipboard) delete wxTheClipboard;
+  wxTheClipboard = new wxClipboard();
+}
+
+void wxDoneClipboard()
+{
+  if (wxTheClipboard) delete wxTheClipboard;
+  wxTheClipboard = (wxClipboard*) NULL;
+}
+
+//-----------------------------------------------------------------------------
+// "selection_received"
+//-----------------------------------------------------------------------------
+
+/*
+static void selection_received( GtkWidget *widget, GtkSelectionData *selection_data, gpointer data )
+{
+}
+*/
+
+//-----------------------------------------------------------------------------
+// wxClipboard
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxClipboard,wxObject)
+
+wxClipboard::wxClipboard()
+{
+  m_data = (wxDataObject*)NULL;
+  m_clipboardWidget = gtk_window_new( GTK_WINDOW_POPUP );
+  gtk_widget_realize( m_clipboardWidget );
+}
+
+wxClipboard::~wxClipboard()
+{
+  if (m_data) delete m_data;
+  if (m_clipboardWidget) gtk_widget_destroy( m_clipboardWidget );
+}
+
+void wxClipboard::SetData( wxDataObject *data )
+{
+  if (m_data) delete m_data;
+  m_data = data;
+}
+
+void *wxClipboard::GetData( wxDataFormat format, size_t *length )
+{
+  if (!IsAvailable(format))
+  {
+    if (length) *length = 0;
+    return NULL;
+  }
+  return NULL;
+}
+
+bool wxClipboard::IsAvailable( wxDataFormat WXUNUSED(format) )
+{
+  return FALSE;
+}