如何根据请求切换小部件可见性
How to switch widgets visibility by request
下面的代码创建了一个包含三行小部件的对话框 window:
一个组合,lineEdit 和 dateEdit。当 combobox
显示 'Show LineEdit' 时,我希望 lineEdit
可见,而 dateEdit
隐藏。选择 "Show DateEdit" 时,我想隐藏 LineEdit
并改为显示 DateEdit
。如何实现?
from PyQt4 import QtCore, QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit','Show DateEdit'])
combo.activated.connect(self.activated)
row.addWidget(combo)
self.lineEdit = QtGui.QLineEdit()
self.dateEdit = QtGui.QDateEdit()
self.dateEdit.setVisible(False)
row.addWidget(self.lineEdit)
row.addWidget(self.dateEdit)
self.layout().insertLayout(i, row)
def activated(self):
print self.sender()
panel=Dialog()
panel.show()
app.exec_()
策略是创建一个字典,它的键是一个组合框,值是对应的其他小部件的字典,然后使用激活的方法,可以return一个文本或一个数字。
from PyQt4 import QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
self.widgets = {}
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit', 'Show DateEdit'])
combo.activated[str].connect(self.activated)
row.addWidget(combo)
lineEdit = QtGui.QLineEdit()
dateEdit = QtGui.QDateEdit()
self.widgets[combo] = [lineEdit, dateEdit]
self.changeWidget(combo.currentText(), lineEdit, dateEdit)
row.addWidget(lineEdit)
row.addWidget(dateEdit)
self.layout().insertLayout(i, row)
def activated(self, text):
linedit, dateEdit = self.widgets[self.sender()]
self.changeWidget(text, linedit, dateEdit)
def changeWidget(self, text, linedit, dateEdit):
if text == 'Show LineEdit':
linedit.setVisible(True)
dateEdit.setVisible(False)
elif text == 'Show DateEdit':
linedit.setVisible(False)
dateEdit.setVisible(True)
panel = Dialog()
panel.show()
app.exec_()
受到上面发布的 eyllanesc 答案的启发,但没有字典。
from PyQt4 import QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit', 'Show DateEdit'])
combo.activated[str].connect(self.activated)
row.addWidget(combo)
combo.lineEdit = QtGui.QLineEdit()
combo.dateEdit = QtGui.QDateEdit()
row.addWidget(combo.lineEdit)
row.addWidget(combo.dateEdit)
self.layout().insertLayout(i, row)
def activated(self, title):
combo = self.sender()
if title == 'Show LineEdit':
combo.lineEdit.setVisible(True)
combo.dateEdit.setVisible(False)
else:
combo.lineEdit.setVisible(False)
combo.dateEdit.setVisible(True)
panel = Dialog()
panel.show()
app.exec_()
下面的代码创建了一个包含三行小部件的对话框 window:
一个组合,lineEdit 和 dateEdit。当 combobox
显示 'Show LineEdit' 时,我希望 lineEdit
可见,而 dateEdit
隐藏。选择 "Show DateEdit" 时,我想隐藏 LineEdit
并改为显示 DateEdit
。如何实现?
from PyQt4 import QtCore, QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit','Show DateEdit'])
combo.activated.connect(self.activated)
row.addWidget(combo)
self.lineEdit = QtGui.QLineEdit()
self.dateEdit = QtGui.QDateEdit()
self.dateEdit.setVisible(False)
row.addWidget(self.lineEdit)
row.addWidget(self.dateEdit)
self.layout().insertLayout(i, row)
def activated(self):
print self.sender()
panel=Dialog()
panel.show()
app.exec_()
策略是创建一个字典,它的键是一个组合框,值是对应的其他小部件的字典,然后使用激活的方法,可以return一个文本或一个数字。
from PyQt4 import QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
self.widgets = {}
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit', 'Show DateEdit'])
combo.activated[str].connect(self.activated)
row.addWidget(combo)
lineEdit = QtGui.QLineEdit()
dateEdit = QtGui.QDateEdit()
self.widgets[combo] = [lineEdit, dateEdit]
self.changeWidget(combo.currentText(), lineEdit, dateEdit)
row.addWidget(lineEdit)
row.addWidget(dateEdit)
self.layout().insertLayout(i, row)
def activated(self, text):
linedit, dateEdit = self.widgets[self.sender()]
self.changeWidget(text, linedit, dateEdit)
def changeWidget(self, text, linedit, dateEdit):
if text == 'Show LineEdit':
linedit.setVisible(True)
dateEdit.setVisible(False)
elif text == 'Show DateEdit':
linedit.setVisible(False)
dateEdit.setVisible(True)
panel = Dialog()
panel.show()
app.exec_()
受到上面发布的 eyllanesc 答案的启发,但没有字典。
from PyQt4 import QtGui
app = QtGui.QApplication([])
class Dialog(QtGui.QDialog):
def __init__(self, parent=None):
super(Dialog, self).__init__(parent)
self.setLayout(QtGui.QVBoxLayout())
for i in range(3):
row = QtGui.QHBoxLayout()
combo = QtGui.QComboBox()
combo.addItems(['Show LineEdit', 'Show DateEdit'])
combo.activated[str].connect(self.activated)
row.addWidget(combo)
combo.lineEdit = QtGui.QLineEdit()
combo.dateEdit = QtGui.QDateEdit()
row.addWidget(combo.lineEdit)
row.addWidget(combo.dateEdit)
self.layout().insertLayout(i, row)
def activated(self, title):
combo = self.sender()
if title == 'Show LineEdit':
combo.lineEdit.setVisible(True)
combo.dateEdit.setVisible(False)
else:
combo.lineEdit.setVisible(False)
combo.dateEdit.setVisible(True)
panel = Dialog()
panel.show()
app.exec_()