Pmw.py 文件源码

def selectpage(self, page):
        pageName = self._pageNames[self.index(page)]
        oldTopPage = self.getcurselection()
        if pageName != oldTopPage:
            self._pending['topPage'] = pageName
            if oldTopPage == self._topPageName:
                self._hull.delete(self._topPageItem)
            cmd = self['lowercommand']
            if cmd is not None:
                cmd(oldTopPage)
            self._raiseNewTop(pageName)

            self._layout()

        # Set focus to the tab of new top page:
        if self._withTabs and self['arrownavigation']:
            self._pageAttrs[pageName]['tabbutton'].focus_set()