code: def setup_toolbar(self):
          
          self.savefig_btn = create_toolbutton(
              self, icon=ima.icon('filesave'),
              tip=_("Save Image As..."),
              triggered=self.emit_save_figure)
          self.delfig_btn = create_toolbutton(
              self, icon=ima.icon('editclear'),
              tip=_("Delete image"),
              triggered=self.emit_remove_figure)
  
          toolbar = QVBoxLayout()
          toolbar.setContentsMargins(0, 0, 0, 0)
          toolbar.setSpacing(1)
          toolbar.addWidget(self.savefig_btn)
          toolbar.addWidget(self.delfig_btn)
          toolbar.addStretch(2)
  
          return toolbar
docs: Setup the toolbar.