所以，我在Maya中使用python和PySide2来获取自定义工具。
我有一个模型（QTableModel）和一个QTableView。
模型中的每一行都会有一堆信息和一个复选框。
我必须做一个QItemDelegate并将其用作复选框。那样就好。如果该代表被检查我无法获得。
我通过模型迭代获取其数据（将其存储在节点中的Maya场景中）
data = []
rows = self.rowCount(1) #self is the model in this snnipet
for row in range(rows):
array = []
for column in range (6): #6 for the fixed number of columns
info = index.data()
array.append(index.data())
data.append(array)
而且每一行中的第一项都是一个复选框（委托）。在最终的数据数组中，当我真的想要获取状态，检查与否时，我最终得到实际的QItemDelegate对象，但它没有isChecked（）方法。
关于如何获得的想法？
非常感谢！
########编辑1因此，模型确实有评论中提到的标志：
def flags(self, index):
return QtCore.Qt.ItemIsEditable | QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsUserCheckable
我认为我做的代表错了，正如我承认的那样，我发现这个snnipet在线并且我试图理解它......但它是这样的：
class CBDelegate(QItemDelegate):
def __init__(self, parent):
QItemDelegate.__init__(self, parent)
def paint(self, painter, option, index):
self.cb = QCheckBox()
try:
self.cb.setChecked(index.data())
except:
pass
if not self.parent().indexWidget(index):
self.parent().setIndexWidget(index, self.cb)
然后，在TableView：
self.setItemDelegateForColumn(0, CBDelegate(self))
有帮助吗？ （如果你有maya 2017我可以给你整个代码......这是一种混乱，因为我正在使用它作为学习练习！
谢谢。
############编辑2表视图：
class Table(QTableView):
def __init__(self, *args, **kwargs):
QTableView.__init__(self, *args, **kwargs)
# Set the delegate for column 0 of our table
#self.setItemDelegateForColumn(6, ButtonDelegate(self)) #problem for another time
self.setItemDelegateForColumn(0, CBDelegate(self))
型号：
class Model(QtCore.QAbstractTableModel):
def __init__(self, cycles = [[]], headers = [], parent = None):
QtCore.QAbstractTableModel.__init__(self, parent)
self.cycles = cycles
self.headers = headers
def rowCount(self, parent):
return len(self.cycles)
def columnCount(self, parent):
return len(self.cycles[0])
def flags(self, index):
return QtCore.Qt.ItemIsEditable | QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsUserCheckable
def data(self, index, role):
if role == QtCore.Qt.DisplayRole:
row = index.row()
column = index.column()
value = self.cycles[row][column]
return value
if role == QtCore.Qt.EditRole:
row = index.row()
column = index.column()
return self.cycles[row][column]
if (role == QtCore.Qt.TextAlignmentRole):
return QtCore.Qt.AlignCenter;
def setData(self, index, value, role = QtCore.Qt.EditRole):
change = False
if role == QtCore.Qt.EditRole:
row = index.row()
column = index.column()
value = value
if (column == 1) or (column == 4):
try:
str(value)
change = True
except:
pm.warning("Not a valid name")
change = False
elif (column == 2):
try:
int(value)
change = True
except:
pm.warning("Not a valid frame")
change = False
elif (column == 3):
try:
int(value)
change = True
except:
pm.warning("Not a valid frame")
change = False
elif (column == 5):
try:
int(value)
change = True
except:
pm.warning("Not a valid version number")
change = False
if change:
self.cycles[row][column] = value
self.dataChanged.emit(row, column)
return True
return False
def headerData(self, section, orientation, role):
if role == QtCore.Qt.DisplayRole:
if orientation == QtCore.Qt.Horizontal:
return self.headers[section]
def insertRows(self, position, rows, values = [] , parent = QtCore.QModelIndex()):
self.beginInsertRows(parent, position, position+rows-1)
self.cycles.insert(position, values)
self.endInsertRows()
self.getData()
def getData(self):
rows = self.rowCount(1)
data = []
for row in range(rows):
array = []
for column in range (6):
index = self.index(row, column)
info = index.data()
if type(info) == bool:
array.append(info)
elif type(info) == QItemDelegate:
val_is_checked = index.data(QtCore.Qt.CheckStateRole) != QtCore.Qt.Unchecked
array.append(val_is_checked)
else:
info = str(info)
array.append(info)
array.append("del")
data.append(array)
dic = {}
for item in data:
dic[item[1]]=item
for key in dic:
print key, dic[key]
#this from pickle
#newData = data2String(dic)
# and this is what I wanna save inside Maya
#pm.setAttr("cycleAnimationListNode.cycles", newData)
代表在上面的编辑1中。
然后我猜你还需要循环和标题来启动这个模型：
headers = ["Select", " Cycle Name ", " Start ", " End ", "Info", "Version", " Del "]
cycles = [[False,"idle","1","70","cool information","0", "deleteBtnPlaceHolder"]]
我希望这样做。
谢谢。
#####编辑3我在模型中有这个自定义方法：
def getData(self):
rows = self.rowCount(1)
data = []
for row in range(rows):
array = []
for column in range (6):
index = self.index(row, column)
info = index.data()
array.append(info)
data.append(array)
dic = {}
for item in data:
dic[item[1]]=item
print ""
print "data:"
print ''
for key in dic:
print(key, dic[key])
我使用它将模型转换为字典，因此我可以将其序列化并作为Node的字符串属性存储在Autodesk Maya中。它运行正常，但从第一列获得的信息始终为None。我必须以不同的方式检索它吗？
答案 0 :(得分：1)
如果您想要显示QCheckBox，则无需使用代理，您只需要正确启用标记Qt::ItemIsUserCheckable，此外您必须通过setData()保存信息，因为在您的代码中信息丢失，因为以下部分中存储的信息显示了具有这些修改的模型：
<强>更新
以前禁用第一列的角色Qt::DisplayRole的数据方法的返回，因为它将文本放在表中，这对我来说是不必要的，现在我已经启用了它，但是文本不是显示我已经放置了一个删除文本的委托
from PySide2.QtWidgets import *
from PySide2.QtCore import *
class Model(QAbstractTableModel):
def __init__(self, cycles = [[]], headers = [], parent = None):
QAbstractTableModel.__init__(self, parent)
self.cycles = cycles
self.headers = headers
self.values_checked = []
def rowCount(self, parent):
return len(self.cycles)
def columnCount(self, parent):
return len(self.cycles[0])
def flags(self, index):
fl = Qt.ItemIsEnabled | Qt.ItemIsSelectable
if index.column() == 0:
fl |= Qt.ItemIsUserCheckable
else:
fl |= Qt.ItemIsEditable
return fl
def data(self, index, role):
if not index.isValid():
return
row = index.row()
column = index.column()
if role == Qt.DisplayRole:
value = self.cycles[row][column]
return value
elif role == Qt.TextAlignmentRole:
return Qt.AlignCenter;
elif role == Qt.CheckStateRole and column==0:
return Qt.Checked if self.cycles[row][column] else Qt.Unchecked
def setData(self, index, value, role = Qt.EditRole):
change = False
row = index.row()
column = index.column()
if role == Qt.CheckStateRole:
value = value != Qt.Unchecked
change = True
if role == Qt.EditRole:
if (column == 1) or (column == 4):
try:
str(value)
change = True
except:
pm.warning("Not a valid name")
change = False
elif (column == 2):
try:
int(value)
change = True
except:
pm.warning("Not a valid frame")
change = False
elif (column == 3):
try:
int(value)
change = True
except:
pm.warning("Not a valid frame")
change = False
elif (column == 5):
try:
int(value)
change = True
except:
pm.warning("Not a valid version number")
change = False
if change:
self.cycles[row][column] = value
self.dataChanged.emit(row, column)
return True
return False
def headerData(self, section, orientation, role):
if role == Qt.DisplayRole:
if orientation == Qt.Horizontal:
return self.headers[section]
def insertRows(self, position, rows, values = [] , parent =QModelIndex()):
self.beginInsertRows(parent, position, position+rows-1)
self.cycles.insert(position, values)
self.endInsertRows()
self.getData()
def roleNames(self):
roles = QAbstractTableModel.roleNames(self)
roles["Checked"] = Qt.CheckStateRole
return roles
def getData(self):
rows = self.rowCount(1)
data = []
for row in range(rows):
array = []
for column in range (6):
index = self.index(row, column)
info = index.data()
array.append(info)
data.append(array)
dic = {}
for item in data:
dic[item[1]]=item
print("")
print("data:")
print('')
for key in dic:
print(key, dic[key])
class EmptyDelegate(QStyledItemDelegate):
def paint(self, painter, option, index):
opt = QStyleOptionViewItem(option)
self.initStyleOption(opt, index)
opt.text = ""
QApplication.style().drawControl(QStyle.CE_ItemViewItem, opt, painter)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
w = QTableView()
w.setItemDelegateForColumn(0, EmptyDelegate(w))
headers = ["Select", " Cycle Name ", " Start ", " End ", "Info", "Version", " Del "]
cycles = [[True,"idle","1","70","cool information","0", "deleteBtnPlaceHolder"]]
model = Model(cycles, headers)
w.setModel(model)
w.show()
sys.exit(app.exec_())