获取 QtableWidget 值以在另一个 QDialog 中列出
Get QtableWidget values to list in another QDialog
我正在使用 PyQt5 为 QGIS 3.16 制作一个插件。我目前使用 Qt Designer 创建了三个 Qdialog。一个主对话框和两个弹出窗口。
第一个弹出窗口包含几个 lineEdits 和 doubleSpinBoxes，填充后将数据传递到主对话框中的 QTableWidget。这工作正常，但在 调用主对话框后 添加了数据，我认为这是造成部分问题的原因。
第二个弹出窗口包含一些动态添加的组合框。我想用前面提到的 QTableWidget 的行中的项目列表填充这些组合框。但是，当我尝试创建列表来填充组合框时，它仍然是空的。我如何在 填充 QTableWidget 后参考主对话框 ，以便正确填充列表？
主对话框中的相关片段class（请注意，代码的基础是由 QGIS 插件 builder 3 创建的）
FORM_CLASS, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_base.ui'))
FORM_CLASS_TAXA, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_popup_taxa.ui'))
FORM_CLASS_VEGCOM, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_popup_vegcom.ui'))
class MainDialog(QtWidgets.QDialog, FORM_CLASS):
def __init__(self, parent=None):
"""Constructor."""
super(MainDialog, self).__init__(parent)
self.setupUi(self)
self.addNew_Taxa.clicked.connect(self.addNewTaxon)
self.addNew_VegCom.clicked.connect(self.addNewVegCom)
def addNewTaxon(self):
""" Adds a new pollen taxon to the list of taxa by opening a pop-up in which the taxon short name can be given"""
self.taxonPopup = AddTaxonPopup()
self.taxonPopup.show()
result = self.taxonPopup.exec_()
# runs when apply is clicked on the add new taxon popup
if result:
# Get filled in values
taxonShortName = self.taxonPopup.lineEdit_taxonShortName.text()
# Check if entry is valid and add to table
if taxonShortName:
rowCount = self.tableWidget_Taxa.rowCount()
self.tableWidget_Taxa.setRowCount(rowCount+1)
self.tableWidget_Taxa.setItem(rowCount, 0, QTableWidgetItem(taxonShortName))
else:
pass
def addNewVegCom(self):
""" Adds a new vegetation community to the list of communities by opening a pop-up in which a list of species
and their percentages, as well as a new community name can be given"""
self.vegComPopup = AddVegComPopup()
self.vegComPopup.show()
#add entries to table (not yet implemented)
result = self.vegComPopup.exec_()
if result:
pass
弹出窗口 1 的代码（因为无需动态创建任何内容，这仅引用 .ui 文件，包含一行编辑）
class AddTaxonPopup (QtWidgets.QDialog, FORM_CLASS_TAXA):
def __init__(self, parent=None):
"""Popup Constructor."""
super(AddTaxonPopup, self).__init__(parent)
self.setupUi(self)
弹出窗口 2 的代码（有点乱，因为它部分在 .ui 文件中创建，部分在代码中创建）
class AddVegComPopup (QtWidgets.QDialog, FORM_CLASS_VEGCOM):
def __init__(self, parent=None):
"""Popup Constructor."""
super(AddVegComPopup, self).__init__(parent)
self.setupUi(self)
#events
self.pushButton_vegComAddSpecies.clicked.connect(self.addVegComTaxonRow)
#class variable for keeping count of the number of taxa
self.previous = 0
#add gridlayout to scrollarea
self.frameforscrolling = QFrame(self.scrollArea)
self.frameforscrolling.setLayout(self.gridLayout)
self.scrollArea.setWidget(self.frameforscrolling)
#set locations of original .ui widgets in grid (because I couldn't get the grid to behave in Qt designer)
self.gridLayout.addWidget(self.label_Title, 0, 0, 1, 4)
self.gridLayout.addWidget(self.label_Name, 1, 0)
self.gridLayout.addWidget(self.buttonBox_2, 2, 1, 1, 3)
def addVegComTaxonRow(self):
""" Adds a new comboBox and doubleSpinBox to be able to add a new taxon to a vegetation community"""
#get location of start OR previous taxon comboBox
label = QLabel('Taxon ' + str(int((self.previous * 0.5)+1)), self)
self.comboBox = QComboBox()
doubleSpin = QDoubleSpinBox()
# insert the new widgets
self.gridLayout.addWidget(label, self.previous+2, 0, 1, 4)
self.gridLayout.addWidget(self.comboBox, self.previous+3, 0, 1, 3)
self.gridLayout.addWidget(doubleSpin, self.previous+3, 3, 1, 2)
self.gridLayout.addWidget(self.buttonBox_2, self.previous + 4, 0, 1, 4)
self.previous += 2
# Fill the comboBox HERE LIES THE PROBLEM
self.taxonlist = []
self.mainDialog = MainDialog()
for taxon in range(self.mainDialog.tableWidget_Taxa.rowCount()):
self.taxonlist.append(self.mainDialog.tableWidget_Taxa.item(taxon, 0).text())
print(self.taxonlist)
self.comboBox.addItems(self.taxonlist)
问题是，在 AddVegComPopup.addVegComTaxonRow 中，您正在创建 MainDialog 的新实例，并从这个新的（隐藏的）小部件而不是从显示的现有对话框中提取项目列表屏幕。解决此问题的一种方法是在 MainDialog.addNewVegCom 中初始化它时向 AddVegComPopup 对话框提供项目列表，并将此列表分配给 AddVegComPopup 中的实例变量，以便您可以每次创建新的投递箱时访问它。为此，MainDialog.addNewVegCom 需要更改为如下内容：
def addNewVegCom(self):
""" Adds a new vegetation community to the list of communities by opening a pop-up in which a list of species
and their percentages, as well as a new community name can be given"""
table = self.tableWidget_Taxa
item_lst = [table.item(row, 0).text() for row in range(table.rowCount())]
self.vegComPopup = AddVegComPopup(item_lst)
result = self.vegComPopup.exec_()
if result:
pass
并且AddVegComPopup需要根据
更新
class AddVegComPopup (QtWidgets.QDialog):
def __init__(self, taxonlist, parent=None): # note extra input parameter
"""Popup Constructor."""
... as before ...
self.taxonlist = taxonlist
....
def addVegComTaxonRow(self):
""" Adds a new comboBox and doubleSpinBox to be able to add a new taxon to a vegetation community"""
# this is the same as before
label = QLabel('Taxon ' + str(int((self.previous * 0.5)+1)), self)
self.comboBox = QComboBox()
doubleSpin = QDoubleSpinBox()
# insert the new widgets
self.gridLayout.addWidget(label, self.previous+2, 0, 1, 4)
self.gridLayout.addWidget(self.comboBox, self.previous+3, 0, 1, 3)
self.gridLayout.addWidget(doubleSpin, self.previous+3, 3, 1, 2)
self.gridLayout.addWidget(self.buttonBox_2, self.previous + 4, 0, 1, 4)
self.previous += 2
# use predefined list
self.comboBox.addItems(self.taxonlist)
我正在使用 PyQt5 为 QGIS 3.16 制作一个插件。我目前使用 Qt Designer 创建了三个 Qdialog。一个主对话框和两个弹出窗口。 第一个弹出窗口包含几个 lineEdits 和 doubleSpinBoxes，填充后将数据传递到主对话框中的 QTableWidget。这工作正常，但在 调用主对话框后 添加了数据，我认为这是造成部分问题的原因。
第二个弹出窗口包含一些动态添加的组合框。我想用前面提到的 QTableWidget 的行中的项目列表填充这些组合框。但是，当我尝试创建列表来填充组合框时，它仍然是空的。我如何在 填充 QTableWidget 后参考主对话框 ，以便正确填充列表？
主对话框中的相关片段class（请注意，代码的基础是由 QGIS 插件 builder 3 创建的）
FORM_CLASS, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_base.ui'))
FORM_CLASS_TAXA, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_popup_taxa.ui'))
FORM_CLASS_VEGCOM, _ = uic.loadUiType(os.path.join(
os.path.dirname(__file__), 'dialog_popup_vegcom.ui'))
class MainDialog(QtWidgets.QDialog, FORM_CLASS):
def __init__(self, parent=None):
"""Constructor."""
super(MainDialog, self).__init__(parent)
self.setupUi(self)
self.addNew_Taxa.clicked.connect(self.addNewTaxon)
self.addNew_VegCom.clicked.connect(self.addNewVegCom)
def addNewTaxon(self):
""" Adds a new pollen taxon to the list of taxa by opening a pop-up in which the taxon short name can be given"""
self.taxonPopup = AddTaxonPopup()
self.taxonPopup.show()
result = self.taxonPopup.exec_()
# runs when apply is clicked on the add new taxon popup
if result:
# Get filled in values
taxonShortName = self.taxonPopup.lineEdit_taxonShortName.text()
# Check if entry is valid and add to table
if taxonShortName:
rowCount = self.tableWidget_Taxa.rowCount()
self.tableWidget_Taxa.setRowCount(rowCount+1)
self.tableWidget_Taxa.setItem(rowCount, 0, QTableWidgetItem(taxonShortName))
else:
pass
def addNewVegCom(self):
""" Adds a new vegetation community to the list of communities by opening a pop-up in which a list of species
and their percentages, as well as a new community name can be given"""
self.vegComPopup = AddVegComPopup()
self.vegComPopup.show()
#add entries to table (not yet implemented)
result = self.vegComPopup.exec_()
if result:
pass
弹出窗口 1 的代码（因为无需动态创建任何内容，这仅引用 .ui 文件，包含一行编辑）
class AddTaxonPopup (QtWidgets.QDialog, FORM_CLASS_TAXA):
def __init__(self, parent=None):
"""Popup Constructor."""
super(AddTaxonPopup, self).__init__(parent)
self.setupUi(self)
弹出窗口 2 的代码（有点乱，因为它部分在 .ui 文件中创建，部分在代码中创建）
class AddVegComPopup (QtWidgets.QDialog, FORM_CLASS_VEGCOM):
def __init__(self, parent=None):
"""Popup Constructor."""
super(AddVegComPopup, self).__init__(parent)
self.setupUi(self)
#events
self.pushButton_vegComAddSpecies.clicked.connect(self.addVegComTaxonRow)
#class variable for keeping count of the number of taxa
self.previous = 0
#add gridlayout to scrollarea
self.frameforscrolling = QFrame(self.scrollArea)
self.frameforscrolling.setLayout(self.gridLayout)
self.scrollArea.setWidget(self.frameforscrolling)
#set locations of original .ui widgets in grid (because I couldn't get the grid to behave in Qt designer)
self.gridLayout.addWidget(self.label_Title, 0, 0, 1, 4)
self.gridLayout.addWidget(self.label_Name, 1, 0)
self.gridLayout.addWidget(self.buttonBox_2, 2, 1, 1, 3)
def addVegComTaxonRow(self):
""" Adds a new comboBox and doubleSpinBox to be able to add a new taxon to a vegetation community"""
#get location of start OR previous taxon comboBox
label = QLabel('Taxon ' + str(int((self.previous * 0.5)+1)), self)
self.comboBox = QComboBox()
doubleSpin = QDoubleSpinBox()
# insert the new widgets
self.gridLayout.addWidget(label, self.previous+2, 0, 1, 4)
self.gridLayout.addWidget(self.comboBox, self.previous+3, 0, 1, 3)
self.gridLayout.addWidget(doubleSpin, self.previous+3, 3, 1, 2)
self.gridLayout.addWidget(self.buttonBox_2, self.previous + 4, 0, 1, 4)
self.previous += 2
# Fill the comboBox HERE LIES THE PROBLEM
self.taxonlist = []
self.mainDialog = MainDialog()
for taxon in range(self.mainDialog.tableWidget_Taxa.rowCount()):
self.taxonlist.append(self.mainDialog.tableWidget_Taxa.item(taxon, 0).text())
print(self.taxonlist)
self.comboBox.addItems(self.taxonlist)
问题是，在 AddVegComPopup.addVegComTaxonRow 中，您正在创建 MainDialog 的新实例，并从这个新的（隐藏的）小部件而不是从显示的现有对话框中提取项目列表屏幕。解决此问题的一种方法是在 MainDialog.addNewVegCom 中初始化它时向 AddVegComPopup 对话框提供项目列表，并将此列表分配给 AddVegComPopup 中的实例变量，以便您可以每次创建新的投递箱时访问它。为此，MainDialog.addNewVegCom 需要更改为如下内容：
def addNewVegCom(self):
""" Adds a new vegetation community to the list of communities by opening a pop-up in which a list of species
and their percentages, as well as a new community name can be given"""
table = self.tableWidget_Taxa
item_lst = [table.item(row, 0).text() for row in range(table.rowCount())]
self.vegComPopup = AddVegComPopup(item_lst)
result = self.vegComPopup.exec_()
if result:
pass
并且AddVegComPopup需要根据
class AddVegComPopup (QtWidgets.QDialog):
def __init__(self, taxonlist, parent=None): # note extra input parameter
"""Popup Constructor."""
... as before ...
self.taxonlist = taxonlist
....
def addVegComTaxonRow(self):
""" Adds a new comboBox and doubleSpinBox to be able to add a new taxon to a vegetation community"""
# this is the same as before
label = QLabel('Taxon ' + str(int((self.previous * 0.5)+1)), self)
self.comboBox = QComboBox()
doubleSpin = QDoubleSpinBox()
# insert the new widgets
self.gridLayout.addWidget(label, self.previous+2, 0, 1, 4)
self.gridLayout.addWidget(self.comboBox, self.previous+3, 0, 1, 3)
self.gridLayout.addWidget(doubleSpin, self.previous+3, 3, 1, 2)
self.gridLayout.addWidget(self.buttonBox_2, self.previous + 4, 0, 1, 4)
self.previous += 2
# use predefined list
self.comboBox.addItems(self.taxonlist)