pyQt v4 rowsMo​​ved信号

Question

我很新的Qt，并试图创建一个用户界面，其中用户将有信息行，每一行代表一个管道中的阶段。 Iam试图实现一个用户可以拖放不同的行，这将改变步骤的发生顺序。

我已经实现了阻力和使用行的下降。 self.tableView.verticalHeader（）setMovable（真）

荫现在试图让信号“rowsMo​​ved”的工作，但不能似乎得到它在我的自定义模型和委托中工作。如果有人知道一种方法来实现这一目标，或者不使用此Signla并使用另一个信号来跟踪哪一行已经移动以及它现在移到哪里。这将是一个很大的帮助！ :)

谢谢大家

下面的代码

class pipelineModel(QAbstractTableModel): 

    def __init_(self): 
     super(pipelineModel, self).__init__() 
     self.stages = [] 

    # Sets up the population of information in the Model  
    def data(self, index, role=Qt.DisplayRole): 

     if (not index.isValid() or not (0 <= index.row() < len(self.stages))): 
      return QVariant() 

     column = index.column() 
     stage = self.stages[ index.row() ]   # Retrieves the object from the list using the row count. 

     if role == Qt.DisplayRole:      # If the role is a display role, setup the display information in each cell for the stage that has just been retrieved 
      if column == NAME: 
       return QVariant(stage.name) 
      if column == ID: 
       return QVariant(stage.id) 
      if column == PREV: 
       return QVariant(stage.prev) 
      if column == NEXT: 
       return QVariant(stage.next) 
      if column == TYPE: 
       return QVariant(stage.assetType) 
      if column == DEPARTMENT: 
       return QVariant(stage.depID) 
      if column == EXPORT: 
       return QVariant(stage.export) 
      if column == PREFIX: 
       return QVariant(stage.prefix) 
      if column == DELETE: 
       return QVariant(stage.delete) 

     elif role == Qt.TextAlignmentRole: 
      pass 

     elif role == Qt.TextColorRole: 
      pass 

     elif role == Qt.BackgroundColorRole: 
      pass 

     return QVariant() 

    # Sets up the header information for the table 
    def headerData(self, section, orientation, role = Qt.DisplayRole): 

     if role == Qt.TextAlignmentRole: 

      if orientation == Qt.Horizontal: 
       return QVariant(int(Qt.AlignLeft|Qt.AlignVCenter)) 
      return QVariant(int(Qt.AlignRight|Qt.AlignVCenter)) 

     if role != Qt.DisplayRole: 
      return QVariant() 

     if orientation == Qt.Horizontal:  # If Orientation is horizontal then we populate the headings 
      if section == ID: 
       return QVariant("ID") 
      elif section == PREV: 
       return QVariant("Previouse") 
      elif section == NEXT: 
       return QVariant("Next") 
      elif section == NAME: 
       return QVariant("Name") 
      elif section == TYPE: 
       return QVariant("Type") 
      elif section == DEPARTMENT: 
       return QVariant("Department") 
      elif section == EXPORT: 
       return QVariant("Export Model") 
      elif section == PREFIX: 
       return QVariant("Prefix") 
      elif section == DELETE: 
       return QVariant("Delete") 
     return QVariant(int(section + 1))   # Creates the Numbers Down the Vertical Side 

    # Sets up the amount of Rows they are 
    def rowCount(self, index = QModelIndex()): 
     count = 0 
     try: 
      count = len(self.stages) 
     except: 
      pass 

     return count 

    # Sets up the amount of columns they are 
    def columnCount(self, index = QModelIndex()): 
     return 9 

    def rowsMoved(self, row, oldIndex, newIndex): 
     print 'ASDASDSA' 

# ---------MAIN AREA--------- 
class pipeline(QDialog): 


    def __init__(self, parent = None): 
     super(pipeline, self).__init__(parent) 
     self.stages = self.getDBinfo()      # gets the stages from the DB and return them as a list of objects 

     tableLabel  = QLabel("Testing Table - Custom Model + Custom Delegate") 
     self.tableView = QTableView()    # Creates a Table View (for now we are using the default one and not creating our own) 

     self.tableDelegate = pipelineDelegate() 
     self.tableModel  = pipelineModel() 

     tableLabel.setBuddy(self.tableView) 
     self.tableView.setModel(self.tableModel) 
#  self.tableView.setItemDelegate(self.tableDelegate) 

     layout = QVBoxLayout() 
     layout.addWidget(self.tableView) 
     self.setLayout(layout) 

     self.tableView.verticalHeader().setMovable(True) 

     self.connect(self.tableModel, SIGNAL("rowsMoved()"), self.MovedRow) # trying to setup an on moved signal, need to check threw the available slots 
#  self.connect(self.tableModel, SIGNAL(" rowsAboutToBeMoved(QModelIndex,int,int,QModelIndex ,int)"), self.MovedRow) # trying to setup an on moved signal, need to check threw the available slots 

Answer 1

你想要的是继承QTableView中，和重载rowMoved（）SLOT

class MyTableView(QtGui.QTableView): 
    def __init__(self, parent=None): 
     super(MyTableView, self).__init__(parent) 

     self.rowsMoved.connect(self.movedRowsSlot) 

    def rowMoved(self, row, oldIndex, newIndex): 
     # do something with these or 

     super(MyTableView, self).rowMoved(row, oldIndex, newIndex) 

    def movedRowsSlot(self, *args): 
     print "Moved rows!", args 

编辑同时显示超载rowMoved插槽，并使用rowsMo​​ved信号

Answer 2

注意：连接到此信号的组件使用它来适应模型尺寸的变化。 它只能由QAbstractItemModel实现发出，并且不能在子类代码中明确发出。