wxDragResult wxDropSource::DoDragDrop(int flags)
{
wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
wxT("Drop source: no data") );
// still in drag
if (g_blockEventsOnDrag)
return wxDragNone;
// don't start dragging if no button is down
if (g_lastButtonNumber == 0)
return wxDragNone;
// we can only start a drag after a mouse event
if (g_lastMouseEvent == NULL)
return wxDragNone;
GTKConnectDragSignals();
wxON_BLOCK_EXIT_OBJ0(*this, wxDropSource::GTKDisconnectDragSignals);
m_waiting = true;
GtkTargetList *target_list = gtk_target_list_new( NULL, 0 );
wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
m_data->GetAllFormats( array );
size_t count = m_data->GetFormatCount();
for (size_t i = 0; i < count; i++)
{
GdkAtom atom = array[i];
wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"),
gdk_atom_name( atom ));
gtk_target_list_add( target_list, atom, 0, 0 );
}
delete[] array;
int allowed_actions = GDK_ACTION_COPY;
if ( flags & wxDrag_AllowMove )
allowed_actions |= GDK_ACTION_MOVE;
// VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
// to use a global to pass the flags to the drop target but I'd
// surely prefer a better way to do it
gs_flagsForDrag = flags;
m_retValue = wxDragCancel;
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
(GdkDragAction)allowed_actions,
g_lastButtonNumber, // number of mouse button which started drag
(GdkEvent*) g_lastMouseEvent );
if ( !context )
{
// this can happen e.g. if gdk_pointer_grab() failed
return wxDragError;
}
m_dragContext = context;
PrepareIcon( allowed_actions, context );
while (m_waiting)
gtk_main_iteration();
g_signal_handlers_disconnect_by_func (m_iconWindow,
(gpointer) gtk_dnd_window_configure_callback, this);
return m_retValue;
}
wxDragResult wxDropSource::DoDragDrop(int flags)
{
wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
wxT("Drop source: no data") );
// still in drag
if (g_blockEventsOnDrag)
return wxDragNone;
// don't start dragging if no button is down
if (g_lastButtonNumber == 0)
return wxDragNone;
// we can only start a drag after a mouse event
if (g_lastMouseEvent == NULL)
return wxDragNone;
// disabled for now
g_blockEventsOnDrag = true;
RegisterWindow();
m_waiting = true;
GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
m_data->GetAllFormats( array );
size_t count = m_data->GetFormatCount();
for (size_t i = 0; i < count; i++)
{
GdkAtom atom = array[i];
#ifdef __WXDEBUG__
wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
#endif
gtk_target_list_add( target_list, atom, 0, 0 );
}
delete[] array;
int action = GDK_ACTION_COPY;
if ( flags & wxDrag_AllowMove )
action |= GDK_ACTION_MOVE;
// VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
// to use a global to pass the flags to the drop target but I'd
// surely prefer a better way to do it
gs_flagsForDrag = flags;
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
(GdkDragAction)action,
g_lastButtonNumber, // number of mouse button which started drag
(GdkEvent*) g_lastMouseEvent );
m_dragContext = context;
PrepareIcon( action, context );
while (m_waiting)
gtk_main_iteration();
m_retValue = ConvertFromGTK(context->action);
if ( m_retValue == wxDragNone )
m_retValue = wxDragCancel;
g_blockEventsOnDrag = false;
UnregisterWindow();
return m_retValue;
}
int CSystemImageList::GetIconIndex(enum filetype type, const wxString& fileName /*=_T("")*/, bool physical /*=true*/)
{
#ifdef __WXMSW__
if (fileName == _T(""))
physical = false;
SHFILEINFO shFinfo;
memset(&shFinfo, 0, sizeof(SHFILEINFO));
if (SHGetFileInfo(fileName != _T("") ? fileName : _T("{B97D3074-1830-4b4a-9D8A-17A38B074052}"),
(type != file) ? FILE_ATTRIBUTE_DIRECTORY : FILE_ATTRIBUTE_NORMAL,
&shFinfo,
sizeof(SHFILEINFO),
SHGFI_ICON | ((type == opened_dir) ? SHGFI_OPENICON : 0) | ((physical) ? 0 : SHGFI_USEFILEATTRIBUTES) ) )
{
int icon = shFinfo.iIcon;
// we only need the index from the system image list
DestroyIcon(shFinfo.hIcon);
return icon;
}
#else
int icon;
switch (type)
{
case file:
default:
icon = 0;
break;
case dir:
return 1;
case opened_dir:
return 2;
}
wxFileName fn(fileName);
wxString ext = fn.GetExt();
if (ext == _T(""))
return icon;
std::map<wxString, int>::iterator cacheIter = m_iconCache.find(ext);
if (cacheIter != m_iconCache.end())
return cacheIter->second;
wxFileType *pType = wxTheMimeTypesManager->GetFileTypeFromExtension(ext);
if (!pType)
{
m_iconCache[ext] = icon;
return icon;
}
wxIconLocation loc;
if (pType->GetIcon(&loc) && loc.IsOk())
{
wxLogNull nul;
wxIcon newIcon(loc);
if (newIcon.Ok())
{
wxBitmap bmp = PrepareIcon(newIcon, wxSize(16, 16));
int index = m_pImageList->Add(bmp);
if (index > 0)
icon = index;
}
}
delete pType;
m_iconCache[ext] = icon;
return icon;
#endif
return -1;
}
