使用ComboBox时，选择在QTableWidget中不起作用-未触发复制事件
使用ComboBox时，选择在QTableWidget中不起作用-未触发复制事件
提问于 2018-06-29 03:58:14
嵌入式comboBox in a QTableWidget (PyQt5)似乎阻止了选择和复制等事件的触发。选择和复制事件在没有comboBox的情况下也能正常工作。
我使用eventFilters来捕获复制事件(CTRL+C)。如果没有comboBox，一切都会按预期运行。您可以选择任意范围的单元格，它可以完美地复制/粘贴到Excel中。
一旦我添加了comboBox，包含comboBox的选择似乎不再触发事件。实际上，当所选内容包含comboBox时，它将从蓝色变为灰色。
有趣的是，当您选择整个表或整行时，它仍然是蓝色的，并且我能够复制和粘贴所有内容，包括comboBox。不包括comboBox的选择也可以正常工作。
以下是具有拷贝事件筛选器的QTableWidget的最小工作示例。
import sys
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_Dialog(object):
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(528, 436)
self.tableWidget = QtWidgets.QTableWidget(Dialog)
self.tableWidget.setGeometry(QtCore.QRect(0, 0, 523, 399))
self.tableWidget.setColumnCount(4)
self.tableWidget.setRowCount(3)
class dialogForm(QDialog):
def __init__(self, ui_layout):
QDialog.__init__(self)
self.ui = ui_layout
ui_layout.setupUi(self)
self.cbItems = ["A", "B", "C", "D"]
self.setupComboBoxAll()
self.ui.tableWidget.installEventFilter(self)
def setupComboBox(self, row):
comboBoxAircraftName = QComboBox()
comboBoxAircraftName.setProperty("row", row)
comboBoxAircraftName.setProperty("col", 1)
for t in self.cbItems:
comboBoxAircraftName.addItem(t)
self.ui.tableWidget.setCellWidget(row,1,comboBoxAircraftName)
def setupComboBoxAll(self):
for i in range(0, self.ui.tableWidget.rowCount()):
self.setupComboBox(i)
###########################
### NOT BEING TRIGGERED
###########################
# Used for copying and pasting
def eventFilter(self, source, event):
if (event.type() == QtCore.QEvent.KeyPress and
event.matches(QtGui.QKeySequence.Copy)):
self.copySelection()
return True
return super(dialogForm, self).eventFilter(source, event)
# Allow copying from QTableWidget and Pasting into Excel
def copySelection(self):
selection = self.ui.tableWidget.selectedIndexes()
if selection:
rows = sorted(index.row() for index in selection)
columns = sorted(index.column() for index in selection)
rowcount = rows[-1] - rows[0] + 1
colcount = columns[-1] - columns[0] + 1
table = [[''] * colcount for _ in range(rowcount)]
for index in selection:
row = index.row() - rows[0]
column = index.column() - columns[0]
if column == 1:
table[row][column] = self.ui.tableWidget.cellWidget(row, column).currentText()
else:
table[row][column] = index.data()
stream = io.StringIO()
csv.writer(stream, delimiter='\t').writerows(table)
QtWidgets.qApp.clipboard().setText(stream.getvalue())
if __name__ == '__main__':
app = QApplication(sys.argv)
window = dialogForm(Ui_Dialog())
window.show()
sys.exit(app.exec_())
main()我正在使用Windows 10。Anaconda Python 3.6.3
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-06-29 05:42:31
解决方案很简单，也可以在QComboBox中安装过滤器，如下所示：
def setupComboBox(self, row):
comboBoxAircraftName = QComboBox()
comboBoxAircraftName.setProperty("row", row)
comboBoxAircraftName.setProperty("col", 1)
comboBoxAircraftName.installEventFilter(self)
comboBoxAircraftName.addItems(self.cbItems)
self.ui.tableWidget.setCellWidget(row, 1 ,comboBoxAircraftName) 另一个更简单的解决方案是使用QShortcut
class dialogForm(QDialog):
def __init__(self, ui_layout):
QDialog.__init__(self)
self.ui = ui_layout
ui_layout.setupUi(self)
self.cbItems = ["A", "B", "C", "D"]
self.setupComboBoxAll()
shorcut = QtWidgets.QShortcut(QtGui.QKeySequence.Copy, self.ui.tableWidget)
shorcut.activated.connect(self.copySelection)
def setupComboBox(self, row):
comboBoxAircraftName = QComboBox()
comboBoxAircraftName.setProperty("row", row)
comboBoxAircraftName.setProperty("col", 1)
comboBoxAircraftName.addItems(self.cbItems)
self.ui.tableWidget.setCellWidget(row, 1 ,comboBoxAircraftName)
def setupComboBoxAll(self):
for i in range(self.ui.tableWidget.rowCount()):
self.setupComboBox(i)
# Allow copying from QTableWidget and Pasting into Excel
def copySelection(self):
selection = self.ui.tableWidget.selectedIndexes()
if selection:
rows = sorted(index.row() for index in selection)
columns = sorted(index.column() for index in selection)
rowcount = rows[-1] - rows[0] + 1
colcount = columns[-1] - columns[0] + 1
table = [[''] * colcount for _ in range(rowcount)]
for index in selection:
row = index.row() - rows[0]
column = index.column() - columns[0]
if column == 1:
table[row][column] = self.ui.tableWidget.cellWidget(row, column).currentText()
else:
table[row][column] = index.data()
stream = io.StringIO()
csv.writer(stream, delimiter='\t').writerows(table)
QtWidgets.qApp.clipboard().setText(stream.getvalue())页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51090424
复制相关文章
相似问题