+ if (!data)
+ return;
+
+ if (!data->IsSupportedFormat(selection_data->target))
+ return;
+
+ if (data->GetDataSize(selection_data->target) == 0)
+ return;
+
+ size_t size = data->GetDataSize(selection_data->target);
+
+// printf( "data size: %d.\n", (int)data_size );
+
+ guchar *d = new guchar[size];
+
+ if (!data->GetDataHere( selection_data->target, (void*)d ))
+ {
+ free( d );
+ return;
+ }
+
+#if wxUSE_THREADS
+ /* disable GUI threads */
+ wxapp_uninstall_thread_wakeup();
+#endif
+
+ gtk_selection_data_set( selection_data,
+ selection_data->target,
+ 8, // 8-bit
+ d,
+ size );
+
+#if wxUSE_THREADS
+ /* enable GUI threads */
+ wxapp_install_thread_wakeup();
+#endif
+
+ free( d );
+
+ /* so far only copy, no moves. TODO. */
+ drop_source->m_retValue = wxDragCopy;
+}
+
+//----------------------------------------------------------------------------
+// "drag_data_delete"
+//----------------------------------------------------------------------------
+
+static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *drop_source )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+// printf( "Delete the data!\n" );
+
+ drop_source->m_retValue = wxDragMove;
+}
+
+//----------------------------------------------------------------------------
+// "drag_begin"
+//----------------------------------------------------------------------------
+
+static void source_drag_begin( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *WXUNUSED(drop_source) )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+// printf( "drag_begin.\n" );
+}
+
+//----------------------------------------------------------------------------
+// "drag_end"
+//----------------------------------------------------------------------------
+
+static void source_drag_end( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *drop_source )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
+
+// printf( "drag_end.\n" );
+
+ drop_source->m_waiting = FALSE;
+}
+
+//---------------------------------------------------------------------------
+// wxDropSource
+//---------------------------------------------------------------------------
+
+wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop )
+{
+ g_blockEventsOnDrag = TRUE;
+ m_waiting = TRUE;
+
+ m_window = win;
+ m_widget = win->m_widget;
+ if (win->m_wxwindow) m_widget = win->m_wxwindow;
+
+ m_data = (wxDataObject*) NULL;
+ m_retValue = wxDragCancel;
+
+ m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
+ m_goaheadCursor = wxCursor( wxCURSOR_HAND );
+
+ m_goIcon = go;
+ if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm );
+ m_stopIcon = stop;
+ if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm );
+}
+
+wxDropSource::wxDropSource( wxDataObject& data, wxWindow *win,
+ const wxIcon &go, const wxIcon &stop )
+{
+ m_waiting = TRUE;
+
+ m_window = win;
+ m_widget = win->m_widget;
+ if (win->m_wxwindow) m_widget = win->m_wxwindow;
+ m_retValue = wxDragCancel;
+
+ m_data = &data;
+
+ m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
+ m_goaheadCursor = wxCursor( wxCURSOR_HAND );
+
+ m_goIcon = go;
+ if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm );
+ m_stopIcon = stop;
+ if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm );
+}
+
+void wxDropSource::SetData( wxDataObject& data )
+{
+ if (m_data)
+ delete m_data;
+
+ m_data = &data;
+}
+
+wxDropSource::~wxDropSource()
+{
+ if (m_data)
+// delete m_data;
+
+ g_blockEventsOnDrag = FALSE;
+}
+
+wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
+{
+ wxASSERT_MSG( m_data, wxT("wxDragSource: no data") );
+
+ if (!m_data) return (wxDragResult) wxDragNone;
+
+ g_blockEventsOnDrag = TRUE;
+
+ RegisterWindow();
+
+ m_waiting = TRUE;
+
+ GdkAtom atom = gdk_atom_intern( "STRING", FALSE );
+// printf( "atom id: %d.\n", (int)atom );
+
+ GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
+ gtk_target_list_add( target_list, atom, 0, 0 );
+
+ GdkEventMotion event;
+ event.window = m_widget->window;
+ int x = 0;
+ int y = 0;
+ GdkModifierType state;
+ gdk_window_get_pointer( event.window, &x, &y, &state );
+ event.x = x;
+ event.y = y;
+ event.state = state;
+ event.time = GDK_CURRENT_TIME;
+
+ /* GTK wants to know which button was pressed which caused the dragging */
+ int button_number = 0;
+ if (event.state & GDK_BUTTON1_MASK) button_number = 1;
+ else if (event.state & GDK_BUTTON2_MASK) button_number = 2;
+ else if (event.state & GDK_BUTTON3_MASK) button_number = 3;
+
+#if wxUSE_THREADS
+ /* disable GUI threads */
+ wxapp_uninstall_thread_wakeup();
+#endif
+
+ /* don't start dragging if no button is down */
+ if (button_number)
projects / wxWidgets.git / blobdiff