const static char* PROP_PANEL = "property_panel_dock";
const static char* PROP_PANEL_OK = "property_panel_ok";
const static char* PROP_PANEL_CANCEL = "property_panel_cancel";
const static char* PROP_PANEL = "property_panel_dock";
const static char* PROP_PANEL_OK = "property_panel_ok";
const static char* PROP_PANEL_CANCEL = "property_panel_cancel";