问题描述
我最近一直在学习 Python，在这里我遇到了一些问题，但我不完全确定如何解决它们。表中的每一项都显示来自名为 PlayblastJob 的类对象的数据。这是使用 Python 和 PySide 构建的。
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当用户在表中选择一堆行并单击“随机化选定值”时，显示的数据不会更新，直到光标悬停在表上或我单击视图中的某些内容。每次单击按钮时如何刷新所有列和行中的数据？
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当用户单击“复选框”时，我如何让该信号设置该行特定作业对象实例的“活动”属性？
在上面的屏幕截图中创建 ui 的代码：
import os
import sys
import random
from PySide import QtCore,QtGui
class PlayblastJob(object):
def __init__(self,**kwargs):
super(PlayblastJob,self).__init__()
# instance properties
self.active = True
self.name = ''
self.camera = ''
self.renderWidth = 1920
self.renderHeight = 1080
self.renderScale = 1.0
self.status = ''
# initialize attribute values
for k,v in kwargs.items():
if hasattr(self,k):
setattr(self,k,v)
def getScaledRenderSize(self):
x = int(self.renderWidth * self.renderScale)
y = int(self.renderHeight * self.renderScale)
return (x,y)
class JobModel(QtCore.QAbstractTableModel):
HEADERS = ['Name','Camera','Resolution','Status']
def __init__(self):
super(JobModel,self).__init__()
self.items = []
def headerData(self,section,orientation,role=QtCore.Qt.DisplayRole):
if orientation == QtCore.Qt.Horizontal:
if role == QtCore.Qt.DisplayRole:
return self.HEADERS[section]
return None
def columnCount(self,parent=QtCore.QModelIndex()):
return len(self.HEADERS)
def rowCount(self,parent=QtCore.QModelIndex()):
return len(self.items)
def appendJob(self,*items):
self.beginInsertRows(QtCore.QModelIndex(),self.rowCount(),self.rowCount() + len(items) - 1)
for item in items:
assert isinstance(item,PlayblastJob)
self.items.append(item)
self.endInsertRows()
def removeJobs(self,items):
rowsToRemove = []
for row,item in enumerate(self.items):
if item in items:
rowsToRemove.append(row)
for row in sorted(rowsToRemove,reverse=True):
self.beginRemoveRows(QtCore.QModelIndex(),row,row)
self.items.pop(row)
self.endRemoveRows()
def clear(self):
self.beginRemoveRows(QtCore.QModelIndex(),self.rowCount())
self.items = []
self.endRemoveRows()
def data(self,index,role=QtCore.Qt.DisplayRole):
if not index.isValid():
return
row = index.row()
col = index.column()
if 0 <= row < self.rowCount():
item = self.items[row]
if role == QtCore.Qt.DisplayRole:
if col == 0:
return item.name
elif col == 1:
return item.camera
elif col == 2:
width,height = item.getScaledRenderSize()
return '{} x {}'.format(width,height)
elif col == 3:
return item.status.title()
elif role == QtCore.Qt.ForegroundRole:
if col == 3:
if item.status == 'error':
return QtGui.QColor(255,82,82)
elif item.status == 'success':
return QtGui.QColor(76,175,80)
elif item.status == 'warning':
return QtGui.QColor(255,193,7)
elif role == QtCore.Qt.TextAlignmentRole:
if col == 2:
return QtCore.Qt.AlignCenter
if col == 3:
return QtCore.Qt.AlignCenter
elif role == QtCore.Qt.CheckStateRole:
if col == 0:
if item.active:
return QtCore.Qt.Checked
else:
return QtCore.Qt.Unchecked
elif role == QtCore.Qt.UserRole:
return item
return None
class JobQueue(QtGui.QWidget):
'''
Description:
Widget that manages the Jobs Queue
'''
def __init__(self):
super(JobQueue,self).__init__()
self.resize(400,600)
# controls
self.uiAddNewJob = QtGui.QPushButton('Add New Job')
self.uiAddNewJob.setToolTip('Add new job')
self.uiRemoveSelectedJobs = QtGui.QPushButton('Remove Selected')
self.uiRemoveSelectedJobs.setToolTip('Remove selected jobs')
self.jobModel = JobModel()
self.uiJobTableView = QtGui.QTableView()
self.uiJobTableView.setEditTriggers(QtGui.QAbstractItemView.NoEditTriggers)
self.uiJobTableView.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
self.uiJobTableView.setSelectionMode(QtGui.QAbstractItemView.ExtendedSelection)
self.uiJobTableView.setModel(self.jobModel)
self.jobSelection = self.uiJobTableView.selectionModel()
self.uiRandomize = QtGui.QPushButton('Randomize Selected Values')
self.uiPrintJobs = QtGui.QPushButton('Print Jobs')
# sub layouts
self.jobQueueToolsLayout = QtGui.QHBoxLayout()
self.jobQueueToolsLayout.addWidget(self.uiAddNewJob)
self.jobQueueToolsLayout.addWidget(self.uiRemoveSelectedJobs)
self.jobQueueToolsLayout.addStretch()
self.jobQueueToolsLayout.addWidget(self.uiRandomize)
# layout
self.mainLayout = QtGui.QVBoxLayout()
self.mainLayout.addLayout(self.jobQueueToolsLayout)
self.mainLayout.addWidget(self.uiJobTableView)
self.mainLayout.addWidget(self.uiPrintJobs)
self.setLayout(self.mainLayout)
# connections
self.uiAddNewJob.clicked.connect(self.addNewJob)
self.uiRemoveSelectedJobs.clicked.connect(self.removeSelectedJobs)
self.uiRandomize.clicked.connect(self.randomizeSelected)
self.uiPrintJobs.clicked.connect(self.printJobs)
# methods
def addNewJob(self):
name = random.choice(['Kevin','Melissa','Suzie','Eddie','Doug'])
job = PlayblastJob(name=name,camera='Camera001',startFrame=50)
self.jobModel.appendJob(job)
def removeSelectedJobs(self):
jobs = self.getSelectedJobs()
self.jobModel.removeJobs(jobs)
def getSelectedJobs(self):
jobs = [x.data(QtCore.Qt.UserRole) for x in self.jobSelection.selectedRows()]
return jobs
def randomizeSelected(self):
jobs = self.getSelectedJobs()
for job in jobs:
job.camera = random.choice(['Canon','Nikon','Sony','Red'])
job.status = random.choice(['error','warning','success'])
def printJobs(self):
jobs = self.jobModel.items
for job in jobs:
print vars(job)
def main():
app = QtGui.QApplication(sys.argv)
window = JobQueue()
window.show()
app.exec_()
if __name__ == '__main__':
main()
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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