PyQt4关闭标签请求关闭

Question

我无法找到一种方法来关闭要关闭的请求标签。我只发现如何关闭当前的小部件和当前标签。有任何想法吗？我无法在互联网上找到线索。

self.tabs.tabCloseRequested.connect(self.removeTab) 

def removeTab(self): 
    tab = self.tabs.currentWidget() 
    tab.deleteLater() 

Answer 1

的QTabWidget类有一个removeTab方法，这将移除标签，但不删除其内容插件。因此，您还需要明确删除内容小部件：

self.tabs.tabCloseRequested.connect(self.removeTab) 
    ... 

    def removeTab(self, index): 
     widget = self.tabs.widget(index) 
     if widget is not None: 
      widget.deleteLater() 
     self.tabs.removeTab(index) 

Answer 2

我可以发布您的代码，但它有点困惑。

#!/usr/bin/python 
# -*- coding: utf-8 -*- 

import sys 
from PyQt4.QtGui import * 
from PyQt4.QtCore import * 
import codecs 
import os 

class Central_widget(QWidget): 
    def __init__(self, setted_lang): 
     super(Central_widget, self).__init__() 

     #tab list 
     self.tab_list = {} 
     self.cont_list = {} 
     self.label_list = {} 
     self.label_num = 0 
     self.tab_num = 0 

     #main page contenent 
     lesson = codecs.open('lessons\lekcja.html', 'r', encoding='utf-8') 
     self.read = lesson.read() 
     read2 = self.read.encode('utf8') 
     print read2 

     #General widget 
     self.general = QWidget(self) 
     self.general.resize(900, 700) 

     #leftWidget 
     self.leftWidget=QWidget(self.general) 
     self.leftWidget.resize(160 ,657) 

     #tab master 
     self.tabmaster(self.general) 


    def tabmaster(self, general): 

     #left widget 
     self.scrollarea() 

     #right widget 
     self.tabs = QTabWidget(self.general) 
     self.tabs.setTabsClosable(True) 
     self.tabs.setTabEnabled(self.tab_num, True) 
     self.tabs.resize(710, 640) 
     self.tabs.move(170, 9) 

     #actual open tabs 
     self.actual_numtabs = self.tabs.indexOf(self.tabs.currentWidget()) 

     #homepage tab 
     self.new_tab('hey')  

    def new_tab(self, text): 
    #tab_name - tab_value dictionary 
     if self.tab_num == 0: 
      name_new_tab = 'Homepage' 
     else: name_new_tab = 'Karta '+str(self.tab_num) 
    value_new_tab = QWidget() 
    self.tab_list[name_new_tab] = value_new_tab 

    #tab_content and cont_value 
     tab_content = 'cont '+str(self.tab_num) 
     cont_value = QTextBrowser(self.tab_list[name_new_tab]) 
     self.cont_list[tab_content] = cont_value 

    #set size, text, add widget to tab 
    self.tabs.addTab(self.tab_list[name_new_tab], str(name_new_tab)) 
    self.cont_list[tab_content].setFixedSize(704, 614) 

    if self.tab_num == 0: 
      self.cont_list[tab_content].setText(self.read) 
      self.tabs.setCurrentWidget(self.tab_list[name_new_tab]) 
     else: self.cont_list[tab_content].setText(text) 

     #close tab 
     self.tabs.tabCloseRequested.connect(self.removeTab) 

     self.tab_num += 1 

    def removeTab(self, index): 
     #remove tab from widget 
     widget = self.tabs.widget(index) 
     if widget is not None: 
      widget.deleteLater() 
     self.tabs.removeTab(index) 

    def scrollarea(self): 

     #scroll area 
     layoutleft = QVBoxLayout(self.leftWidget) 
     s=QScrollArea() 
     layoutleft.addWidget(s) 
     widleft = QWidget(self) 
     vbox=QVBoxLayout(widleft) 
     nl=QHBoxLayout() 
     nl.addWidget(QLabel(u"Lista lekcji dostępnych:", self)) 
     vbox.addLayout(nl) 
     nl=QHBoxLayout() 
     vbox.addLayout(nl) 
     vbox.setSpacing(2) 
     vbox.insertSpacing(1, 20) 

     #list of lessons 
     for filename in os.listdir('lessons'): 
      name = os.path.splitext(filename) 
      label_var = name[0] 
      value = QPushButton(label_var) 
      self.label_list[label_var] = value 
      self.label_list[label_var].clicked.connect(self.openlesson) 
      self.label_list[label_var].setObjectName(label_var) 
      _l=QHBoxLayout() 
      _l.addWidget(self.label_list[label_var]) 
      vbox.addLayout(_l) 

     s.setWidget(widleft) 

    def openlesson(self): 
     a = self.sender() 
     print a.objectName() 
     lesson = codecs.open('lessons\\'+str(a.objectName())+'.html', 'r', encoding='utf-8') 
     read = lesson.read() 
     self.new_tab(read)