如何显示文本编辑器的标签，并且能够替换“新建”操作的功能以创建新标签，并且“打开”操作可以将文件打开到新标签中？
这是我的代码：
#Imports
import sys, os
from PyQt4 import QtGui, QtCore
from PyQt4.QtGui import QApplication, QColumnView, QFileSystemModel, QSplitter, QTreeView
from PyQt4.QtCore import Qt, QDir
class Window(QtGui.QMainWindow):
#Window Settings
def __init__(self):
super(Window, self).__init__()
self.showMaximized()
self.setWindowTitle("Editory")
self.setWindowIcon(QtGui.QIcon('favicon.png'))
#Text Window
self.text = QtGui.QTextEdit(self)
self.text.setTabStopWidth(12)
self.setCentralWidget(self.text)
# Font variables
fontBox = QtGui.QFontComboBox(self)
fontBox.currentFontChanged.connect(self.FontFamily)
fontSize = QtGui.QComboBox(self)
fontSize.setEditable(True)
fontSize.setMinimumContentsLength(3)
fontSize.activated.connect(self.FontSize)
# Font Sizes
fontSizes = ['6','7','8','9','10','11','12','13','14',
'15','16','18','20','22','24','26','28',
'32','36','40','44','48','54','60','66',
'72','80','88','96']
for i in fontSizes:
fontSize.addItem(i)
#New Input
new = QtGui.QAction("&New", self)
new.setShortcut("Ctrl+N")
new.triggered.connect(self.New)
#Open Input
open = QtGui.QAction("&Open", self)
open.setShortcut("Ctrl+O")
open.triggered.connect(self.Open)
#Save Input
save = QtGui.QAction("&Save", self)
save.setShortcut("Ctrl+S")
save.triggered.connect(self.Save)
#Print Input
prints = QtGui.QAction("&Print", self)
prints.setShortcut("Ctrl+P")
prints.triggered.connect(self.Print)
#Quit Input
quit = QtGui.QAction("&Quit", self)
quit.setShortcut("Ctrl+Q")
quit.triggered.connect(self.Quit)
self.statusBar()
#Menubar
menubar = self.menuBar()
#File Menu
file = menubar.addMenu('&File')
#File Inputs
file.addAction(new)
file.addAction(open)
file.addAction(save)
file.addAction(prints)
file.addSeparator()
file.addAction(quit)
#Cut Input
cut = QtGui.QAction("&Cut", self)
cut.setShortcut("Ctrl+X")
cut.triggered.connect(self.Cut)
#Copy Input
copy = QtGui.QAction("&Copy", self)
copy.setShortcut("Ctrl+C")
copy.triggered.connect(self.Copy)
#Paste Input
paste = QtGui.QAction("&Paste", self)
paste.setShortcut("Ctrl+V")
paste.triggered.connect(self.Paste)
#Undo Input
undo = QtGui.QAction("&Undo", self)
undo.setShortcut("Ctrl+Z")
undo.triggered.connect(self.Undo)
#Redo Input
redo = QtGui.QAction("&Redo", self)
redo.setShortcut("Ctrl+Y")
redo.triggered.connect(self.Redo)
#Edit Menubar
edit = menubar.addMenu('&Edit')
#Edit Inputs
edit.addAction(cut)
edit.addAction(copy)
edit.addAction(paste)
edit.addSeparator()
edit.addAction(undo)
edit.addAction(redo)
#Fullscreen Input
fullscreen = QtGui.QAction("&Fullscreen", self)
fullscreen.setShortcut("F11")
fullscreen.triggered.connect(self.Fullscreen)
#Align Left Input
align_left = QtGui.QAction("&Align Left", self)
align_left.triggered.connect(self.Align_Left)
#Align Right Input
align_right = QtGui.QAction("&Align Right", self)
align_right.triggered.connect(self.Align_Right)
#Align Center Input
align_center = QtGui.QAction("&Align Center", self)
align_center.triggered.connect(self.Align_Center)
#Align Justify Input
align_justify = QtGui.QAction("&Align Justify", self)
align_justify.triggered.connect(self.Align_Justify)
#View Menubar
view = menubar.addMenu('&View')
#View Inputs
view.addAction(fullscreen)
view.addSeparator()
view.addAction(align_left)
view.addAction(align_right)
view.addAction(align_center)
view.addAction(align_justify)
#Font Family Input
font_family = QtGui.QWidgetAction(self)
font_family.setDefaultWidget(fontBox)
#Settings Menubar
settings = menubar.addMenu('&Settings')
menu_font = settings.addMenu("&Font")
menu_font.addAction(font_family)
font_size = QtGui.QWidgetAction(self)
font_size.setDefaultWidget(fontSize)
menu_size = settings.addMenu("&Font Size")
menu_size.addAction(font_size)
self.toolbar()
#Input Functions
def New(self):
self.text.clear()
def Open(self):
filename = QtGui.QFileDialog.getOpenFileName(self, 'Open File')
f = open(filename, 'r')
filedata = f.read()
self.text.setText(filedata)
f.close()
def Save(self):
name = QtGui.QFileDialog.getSaveFileName(self, 'Save File')
file = open(name,'w')
text = self.textEdit.toPlainText()
file.write(text)
file.close()
def Print(self):
print_dialog = QtGui.QPrintDialog()
if print_dialog.exec_() == QtGui.QDialog.Accepted:
self.text.document().print_(print_dialog.printer())
def Quit(self):
sys.exit()
def Undo(self):
self.text.undo()
def Redo(self):
self.text.redo()
def Cut(self):
self.text.cut()
def Copy(self):
self.text.copy()
def Paste(self):
self.text.paste()
def Align_Left(self):
self.text.setAlignment(Qt.AlignLeft)
def Align_Right(self):
self.text.setAlignment(Qt.AlignRight)
def Align_Center(self):
self.text.setAlignment(Qt.AlignCenter)
def Align_Justify(self):
self.text.setAlignment(Qt.AlignJustify)
def Fullscreen(self):
if not self.isFullScreen():
self.showFullScreen()
else:
self.showMaximized()
def FontFamily(self,font):
self.text.setCurrentFont(font)
def FontSize(self, fontsize):
self.text.setFontPointSize(int(fontsize))
#Toolbar
def toolbar(self):
#New Tool
new = QtGui.QAction(QtGui.QIcon('icons/new.png'), 'New', self)
new.triggered.connect(self.New)
#Open Tool
open = QtGui.QAction(QtGui.QIcon('icons/open.png'), 'Open', self)
open.triggered.connect(self.Open)
#Save Tool
save = QtGui.QAction(QtGui.QIcon('icons/save.png'), 'Save', self)
save.triggered.connect(self.Save)
#Print Tool
prints = QtGui.QAction(QtGui.QIcon('icons/print.png'), 'Print', self)
prints.triggered.connect(self.Print)
#Quit Tool
quit = QtGui.QAction(QtGui.QIcon('icons/quit.png'), 'Quit', self)
quit.triggered.connect(self.Quit)
#Cut Tool
cut = QtGui.QAction(QtGui.QIcon('icons/cut.png'), 'Cut', self)
cut.triggered.connect(self.Cut)
#Copy Tool
copy = QtGui.QAction(QtGui.QIcon('icons/copy.png'), 'Copy', self)
copy.triggered.connect(self.Copy)
#Paste Tool
paste = QtGui.QAction(QtGui.QIcon('icons/paste.png'), 'Paste', self)
paste.triggered.connect(self.Paste)
#Undo Tool
undo = QtGui.QAction(QtGui.QIcon('icons/undo.png'), 'Undo', self)
undo.triggered.connect(self.Undo)
#Redo Tool
redo = QtGui.QAction(QtGui.QIcon('icons/redo.png'), 'Redo', self)
redo.triggered.connect(self.Redo)
#Toolbar Menu
self.toolbar = self.addToolBar("Toolbar")
self.toolbar.addAction(new)
self.toolbar.addAction(open)
self.toolbar.addAction(save)
self.toolbar.addSeparator()
self.toolbar.addAction(cut)
self.toolbar.addAction(copy)
self.toolbar.addAction(paste)
self.toolbar.addSeparator()
self.toolbar.addAction(undo)
self.toolbar.addAction(redo)
self.toolbar.addSeparator()
self.toolbar.addAction(prints)
self.toolbar.addSeparator()
self.toolbar.addAction(quit)
#Reveals The Toolbar
self.show()
#Run Function
def run():
app = QtGui.QApplication(sys.argv)
GUI = Window()
sys.exit(app.exec_())
run()
我尝试使用Drewness提供的答案并将其插入我的代码中，但是我收到了这个错误：
TypeError：'QTextEdit'对象不可调用
答案 0 :(得分：1)
首先，拥有很多东西对于提供清晰的代码没有帮助，所以我冒昧地减少它并订购它。
您必须将QTabWidget设置为centralWidget，并在每个标签中创建QTextEdit，但您必须拥有当前QTextEdit，当另一个标签位于选中后，您必须使用currentChanged信号。
必须对该QTextEdit执行所有操作，如果是new和open，则必须创建QTextEdit，并在必要时填写。
import os
import sys
from PyQt4 import QtGui, QtCore
class Window(QtGui.QMainWindow):
def __init__(self):
super(Window, self).__init__()
self.showMaximized()
self.setWindowTitle("Editory")
self.setWindowIcon(QtGui.QIcon('favicon.png'))
self.current_editor = self.create_editor()
self.editors = []
self.tab_widget = QtGui.QTabWidget()
self.tab_widget.setTabsClosable(True)
self.tab_widget.currentChanged.connect(self.change_text_editor)
self.tab_widget.tabCloseRequested.connect(self.remove_editor)
self.new_document()
self.setCentralWidget(self.tab_widget)
self.configure_menuBar()
self.configure_toolbar()
def configure_menuBar(self):
menubar = self.menuBar()
menubar_items = {
'&File': [
("&New", "Ctrl+N", self.new_document),
("&Open", "Ctrl+O", self.open_document),
("&Save", "Ctrl+S", self.save_document),
("&Print", "Ctrl+P", self.print_document),
None,
("&Quit", "Ctrl+Q", self.quit),
],
'&Edit': [
("&Cut", "Ctrl+X", self.cut_document),
("&Copy", "Ctrl+C", self.copy_document),
("&Paste", "Ctrl+V", self.paste_document),
None,
("&Undo", "Ctrl+Z", self.undo_document),
("&Redo", "Ctrl+Y", self.redo_document)
],
'&View': [
("&Fullscreen", "F11", self.fullscreen),
None,
("&Align Left", "", self.align_left),
("&Align Right", "", self.align_right),
("&Align Center", "", self.align_center),
("&Align Justify", "", self.align_justify)
]
}
for menuitem, actions in menubar_items.items():
menu = menubar.addMenu(menuitem)
for act in actions:
if act:
text, shorcut, callback = act
action = QtGui.QAction(text, self)
action.setShortcut(shorcut)
action.triggered.connect(callback)
menu.addAction(action)
else :
menu.addSeparator()
# Font Family Input
fontBox = QtGui.QFontComboBox(self)
fontBox.currentFontChanged.connect(self.FontFamily)
fontSize = QtGui.QComboBox(self)
fontSize.setEditable(True)
fontSize.setMinimumContentsLength(3)
fontSize.activated.connect(self.FontSize)
# Font Sizes
fontSizes = ['6', '7', '8', '9', '10', '11', '12', '13', '14',
'15', '16', '18', '20', '22', '24', '26', '28',
'32', '36', '40', '44', '48', '54', '60', '66',
'72', '80', '88', '96'
]
fontSize.addItems(fontSizes)
font_family = QtGui.QWidgetAction(self)
font_family.setDefaultWidget(fontBox)
# Settings Menubar
settings = menubar.addMenu('&Settings')
menu_font = settings.addMenu("&Font")
menu_font.addAction(font_family)
font_size = QtGui.QWidgetAction(self)
font_size.setDefaultWidget(fontSize)
menu_size = settings.addMenu("&Font Size")
menu_size.addAction(font_size)
def configure_toolbar(self):
items = (('icons/new.png', 'New', self.new_document),
('icons/open.png', 'Open', self.open_document),
('icons/save.png', 'Save', self.save_document),
None,
('icons/cut.png', 'Cut', self.cut_document),
('icons/copy.png', 'Copy', self.copy_document),
('icons/paste.png', 'Paste', self.paste_document),
None,
('icons/undo.png', 'Undo', self.undo_document),
('icons/redo.png', 'Redo', self.redo_document),
None,
('icons/print.png', 'Print', self.print_document),
None,
('icons/quit.png', 'Quit', self.quit),
)
self.toolbar = self.addToolBar("Toolbar")
for item in items:
if item:
icon, text, callback = item
action = QtGui.QAction(QtGui.QIcon(icon), text, self)
action.triggered.connect(callback)
self.toolbar.addAction(action)
else :
self.toolbar.addSeparator()
def remove_editor(self, index):
self.tab_widget.removeTab(index)
if index < len(self.editors):
del self.editors[index]
def create_editor(self):
text_editor = QtGui.QTextEdit()
text_editor.setTabStopWidth(12)
return text_editor
def change_text_editor(self, index):
if index < len(self.editors):
self.current_editor = self.editors[index]
# Input Functions
def new_document(self, checked = False, title = "Untitled"):
self.current_editor = self.create_editor()
self.editors.append(self.current_editor)
self.tab_widget.addTab(self.current_editor, title + str(len(self.editors)))
self.tab_widget.setCurrentWidget(self.current_editor)
def open_document(self):
filename = QtGui.QFileDialog.getOpenFileName(self, 'Open File')
if filename:
f = open(filename, 'r')
filedata = f.read()
self.new_document(title = filename)
self.current_editor.setText(filedata)
f.close()
def save_document(self):
name = QtGui.QFileDialog.getSaveFileName(self, 'Save File')
file = open(name, 'w')
if file:
text = self.current_editor.toPlainText()
file.write(text)
file.close()
def print_document(self):
print_dialog = QtGui.QPrintDialog()
if print_dialog.exec_() == QtGui.QDialog.Accepted:
self.current_editor.document().print_(print_dialog.printer())
def quit(self): self.close()
def undo_document(self): self.current_editor.undo()
def redo_document(self): self.current_editor.redo()
def cut_document(self): self.current_editor.cut()
def copy_document(self): self.current_editor.copy()
def paste_document(self): self.current_editor.paste()
def align_left(self): self.current_editor.setAlignment(Qt.AlignLeft)
def align_right(self): self.current_editor.setAlignment(Qt.AlignRight)
def align_center(self): self.current_editor.setAlignment(Qt.AlignCenter)
def align_justify(self):
self.current_editor.setAlignment(Qt.AlignJustify)
def fullscreen(self):
if not self.isFullScreen():
self.showFullScreen()
else :
self.showMaximized()
def FontFamily(self, font):
self.current_editor.setCurrentFont(font)
def FontSize(self, fontsize):
self.current_editor.setFontPointSize(int(fontsize))
def run():
app = QtGui.QApplication(sys.argv)
GUI = Window()
sys.exit(app.exec_())
run()