QGridlayout 和 QGroupbox 对齐
QGridlayout and QGroupbox alignment
我创建了一个内容为 3 QGroupbox 的小部件，我试图将它们分别放置并与 QGridLayout 对齐。 QGroupboxs 的奇怪行为提出了这个问题。
目前的情况。
如上图，当Qwidget屏幕伸长伸长时，每组相互重叠，通过伸长替换奇怪和不需要的。
我想成为什么样的人....
通过向内拉伸希望所有组保持其自己的位置Fixed并且滚动条会出现。
密码是：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox(self)
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently
wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray
zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
Environment_Group = QtWidgets.QGroupBox(self)
Environment_Group.setTitle("&Group2")
Environment_Group.setLayout(self.grid)
class ClassC(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel("")
self.longsteelstrength = QtWidgets.QLabel("")
self.bottompsteelstrength = QtWidgets.QLabel("")
self.stirrupsteelstrength = QtWidgets.QLabel("")
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox(self)
Concrete_Group.setTitle("&GroupC")
Concrete_Group.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())
问题很简单，ClassA, ClassB, ClassC 里面的groupboxes 只是children 所以ClassA, ClassB, ClassC 的minimunSizeHint() 是(0, 0)。例如，我们显示 classA:
所以有2种解法：
1。首先是为ClassA、ClassB、ClassC建立布局classes，例如：
...
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
...
完整代码：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
Environment_Group = QtWidgets.QGroupBox()
Environment_Group.setTitle("&Group2")
Environment_Group.setLayout(self.grid)
vlay = QtWidgets.QVBoxLayout(self)
vlay.addWidget(Environment_Group)
class ClassC(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel()
self.longsteelstrength = QtWidgets.QLabel()
self.bottompsteelstrength = QtWidgets.QLabel()
self.stirrupsteelstrength = QtWidgets.QLabel()
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupC")
Concrete_Group.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())
2。或者classA，class和class继承自QGroubBox，为此你可以，例如，执行以下操作：
class ClassA(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
...
self.setTitle("&GroupA")
self.setLayout(self.vlay)
...
完整代码：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
self.setTitle("&GroupA")
self.setLayout(self.vlay)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
self.setTitle("&Group2")
self.setLayout(self.grid)
class ClassC(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel()
self.longsteelstrength = QtWidgets.QLabel()
self.bottompsteelstrength = QtWidgets.QLabel()
self.stirrupsteelstrength = QtWidgets.QLabel()
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
self.setTitle("&GroupC")
self.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())
我创建了一个内容为 3 QGroupbox 的小部件，我试图将它们分别放置并与 QGridLayout 对齐。 QGroupboxs 的奇怪行为提出了这个问题。
目前的情况。
如上图，当Qwidget屏幕伸长伸长时，每组相互重叠，通过伸长替换奇怪和不需要的。
我想成为什么样的人....
通过向内拉伸希望所有组保持其自己的位置Fixed并且滚动条会出现。
密码是：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox(self)
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently
wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray
zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
Environment_Group = QtWidgets.QGroupBox(self)
Environment_Group.setTitle("&Group2")
Environment_Group.setLayout(self.grid)
class ClassC(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel("")
self.longsteelstrength = QtWidgets.QLabel("")
self.bottompsteelstrength = QtWidgets.QLabel("")
self.stirrupsteelstrength = QtWidgets.QLabel("")
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox(self)
Concrete_Group.setTitle("&GroupC")
Concrete_Group.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())
问题很简单，ClassA, ClassB, ClassC 里面的groupboxes 只是children 所以ClassA, ClassB, ClassC 的minimunSizeHint() 是(0, 0)。例如，我们显示 classA:
所以有2种解法：
1。首先是为ClassA、ClassB、ClassC建立布局classes，例如：
...
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
...
完整代码：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupA")
Concrete_Group.setLayout(self.vlay)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
Environment_Group = QtWidgets.QGroupBox()
Environment_Group.setTitle("&Group2")
Environment_Group.setLayout(self.grid)
vlay = QtWidgets.QVBoxLayout(self)
vlay.addWidget(Environment_Group)
class ClassC(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel()
self.longsteelstrength = QtWidgets.QLabel()
self.bottompsteelstrength = QtWidgets.QLabel()
self.stirrupsteelstrength = QtWidgets.QLabel()
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
Concrete_Group = QtWidgets.QGroupBox()
Concrete_Group.setTitle("&GroupC")
Concrete_Group.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
lay = QtWidgets.QVBoxLayout(self)
lay.addWidget(Concrete_Group)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())
2。或者classA，class和class继承自QGroubBox，为此你可以，例如，执行以下操作：
class ClassA(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
...
self.setTitle("&GroupA")
self.setLayout(self.vlay)
...
完整代码：
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
class ClassWidget(QtWidgets.QWidget):
def __init__(self, parent=None):
super(ClassWidget, self).__init__(parent)
self.setGeometry(QtCore.QRect(200, 100, 670, 360))
self.A = ClassA()
self.B = ClassB()
self.C = ClassC()
grid = QtWidgets.QGridLayout(self)
grid.addWidget(self.A, 0, 0)
grid.addWidget(self.B, 0, 1, 1, 2)
grid.addWidget(self.C, 1, 0, 1, 2)
class ClassA(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassA, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.c_lay = QtWidgets.QHBoxLayout()
fctd = "One\n\nTwo\n\nThree"
con_strength = QtWidgets.QLabel(fctd)
self.value = QtWidgets.QLineEdit('Test')
self.c_lay.addWidget(con_strength)
self.c_lay.addWidget(self.value, alignment=QtCore.Qt.AlignRight)
self.combo = QtWidgets.QComboBox()
self.combo.addItems(["10","12","14","16"])
self.hbox = QtWidgets.QHBoxLayout()
self.con = QtWidgets.QLabel("Number: ")
self.hbox.addWidget(self.con)
self.hbox.addWidget(self.combo)
self.vlay = QtWidgets.QVBoxLayout()
self.vlay.addLayout(self.hbox)
self.vlay.addLayout(self.c_lay)
self.vlay.addStretch()
self.setTitle("&GroupA")
self.setLayout(self.vlay)
self.comth = ["10","12","14","16"]
self.combo.activated.connect(self.setdatastrength)
@QtCore.pyqtSlot(int)
def setdatastrength(self, index):
value = self.comth[index]
self.display_data(value)
def display_data(self, value):
try:
f = value
f_value = "{}"
self.value.setText(f_value.format(f))
except ValueError:
print("Error")
class ClassB(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassB, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.combo_exclass = QtWidgets.QComboBox()
self.combo_exclass.addItems([" Very dry area"," Dry or permanently wet"," Wet, rarely dry"," Moderate humidity"," Tidal splash & spray zones"])
self.combo_lclass = QtWidgets.QComboBox()
self.combo_lclass.addItems(["L2","L4","L6","L8"])
self.combo_vct = QtWidgets.QComboBox()
self.combo_vct.addItems(["0.10","0.20","0.30","0.40",
"0.50","0.60","0.70"])
self.combo_in = QtWidgets.QComboBox()
self.combo_in.addItems(["Class1","Class2","Class3"])
self.tbox = QtWidgets.QHBoxLayout()
self.exclass = QtWidgets.QLabel("Class1: ")
self.tbox.addWidget(self.exclass)
self.tbox.addWidget(self.combo_exclass)
self.mtbox = QtWidgets.QHBoxLayout()
self.lclass = QtWidgets.QLabel("Class2: ")
self.mtbox.addWidget(self.lclass)
self.mtbox.addWidget(self.combo_lclass)
self.mbbox = QtWidgets.QHBoxLayout()
self.vct = QtWidgets.QLabel("Class3: ")
self.mbbox.addWidget(self.vct)
self.mbbox.addWidget(self.combo_vct)
self.bbox = QtWidgets.QHBoxLayout()
self.inl = QtWidgets.QLabel("Class4: ")
self.bbox.addWidget(self.inl)
self.bbox.addWidget(self.combo_in)
self.grid = QtWidgets.QGridLayout()
self.grid.addLayout(self.tbox, 0, 0, 1, 2)
self.grid.addLayout(self.mtbox, 1, 0)
self.grid.addLayout(self.mbbox, 2, 0)
self.grid.addLayout(self.bbox, 3, 0)
self.setTitle("&Group2")
self.setLayout(self.grid)
class ClassC(QtWidgets.QGroupBox):
def __init__(self, parent=None):
super(ClassC, self).__init__(parent)
self.setFont(QtGui.QFont("Helvetica", 10, QtGui.QFont.Normal, italic=False))
self.topone = QtWidgets.QComboBox()
self.topone.addItems(["One","Two","Three","four"])
self.longitudinalone = QtWidgets.QComboBox()
self.longitudinalone.addItems(["One","Two","Three","four"])
self.bottomone = QtWidgets.QComboBox()
self.bottomone.addItems(["One","Two","Three","four"])
self.stirrupone = QtWidgets.QComboBox()
self.stirrupone.addItems(["One","Two","Three","four"])
self.toprebar = QtWidgets.QComboBox()
self.toprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.longitudinalrebar = QtWidgets.QComboBox()
self.longitudinalrebar.addItems(["1","2","3","4","5","6",
"7","8","9"])
self.bottomrebar = QtWidgets.QComboBox()
self.bottomrebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.stirruprebar = QtWidgets.QComboBox()
self.stirruprebar.addItems(["1","2","3","4","5","6","7","8","9"])
self.rebarbox = QtWidgets.QVBoxLayout()
self.topvoid = QtWidgets.QLabel(" ")
self.top = QtWidgets.QLabel("One: ")
self.longitudinal = QtWidgets.QLabel("Two: ")
self.bottom = QtWidgets.QLabel("Three: ")
self.stirrup = QtWidgets.QLabel("Four: ")
self.rebarbox.addWidget(self.topvoid)
self.rebarbox.addWidget(self.top)
self.rebarbox.addWidget(self.longitudinal)
self.rebarbox.addWidget(self.bottom)
self.rebarbox.addWidget(self.stirrup)
self.typebox = QtWidgets.QVBoxLayout()
self.type = QtWidgets.QLabel("Type ")
self.typebox.addWidget(self.type, alignment=QtCore.Qt.AlignCenter)
self.typebox.addWidget(self.topone)
self.typebox.addWidget(self.longitudinalone)
self.typebox.addWidget(self.bottomone)
self.typebox.addWidget(self.stirrupone)
self.Reinforcebox = QtWidgets.QVBoxLayout()
self.Reinforcement = QtWidgets.QLabel("One, One")
self.Reinforcebox.addWidget(self.Reinforcement)
self.Reinforcebox.addWidget(self.toprebar)
self.Reinforcebox.addWidget(self.longitudinalrebar)
self.Reinforcebox.addWidget(self.bottomrebar)
self.Reinforcebox.addWidget(self.stirruprebar)
self.designstrengthbox = QtWidgets.QVBoxLayout()
self.designsteelstrength = QtWidgets.QLabel("Four")
self.topsteelstrength = QtWidgets.QLabel()
self.longsteelstrength = QtWidgets.QLabel()
self.bottompsteelstrength = QtWidgets.QLabel()
self.stirrupsteelstrength = QtWidgets.QLabel()
self.designstrengthbox.addWidget(self.designsteelstrength)
self.designstrengthbox.addWidget(self.topsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.longsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.bottompsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.designstrengthbox.addWidget(self.stirrupsteelstrength, alignment=QtCore.Qt.AlignCenter)
self.sbox = QtWidgets.QVBoxLayout()
self.anytext = QtWidgets.QLabel("Any text")
self.value = QtWidgets.QLabel("Any")
self.value1 = QtWidgets.QLabel("Any")
self.value2 = QtWidgets.QLabel("Any")
self.value3 = QtWidgets.QLabel("Any")
self.sbox.addWidget(self.anytext)
self.sbox.addWidget(self.value)
self.sbox.addWidget(self.value1)
self.sbox.addWidget(self.value2)
self.sbox.addWidget(self.value3)
self.hlay = QtWidgets.QHBoxLayout()
self.hlay.addStretch()
self.hlay.addLayout(self.rebarbox)
self.hlay.addLayout(self.typebox)
self.hlay.addLayout(self.Reinforcebox)
self.hlay.addLayout(self.designstrengthbox)
self.hlay.addLayout(self.sbox)
self.hlay.addStretch()
self.setTitle("&GroupC")
self.setLayout(self.hlay)
self.rebarstrength = ["1","2","3","4"]
self.topone.activated.connect(self.setdatatopstrength)
@QtCore.pyqtSlot(int)
def setdatatopstrength(self, index):
value = self.rebarstrength[index]
self.display_topsteeldata(value)
@QtCore.pyqtSlot(int)
def display_topsteeldata(self, value):
try:
gammas = 1.15
fyd = int(float(value)/gammas)
fmt = "{}"
self.topsteelstrength.setText(fmt.format(str(fyd)))
except ValueError:
print("Error")
if __name__ == '__main__':
app = QtWidgets.QApplication(sys.argv)
w = ClassWidget()
w.show()
sys.exit(app.exec_())