如何使用QPlainTextEdit编辑器结束编辑会话？

问题描述

这是MRE：

from PyQt5.QtCore import QRect,Qt,QAbstractTableModel
from PyQt5.QtWidgets import QApplication,QMainWindow,QTableView,QWidget,QVBoxLayout,qstyledItemDelegate,QPlainTextEdit,QShortcut
import sys,types
from PyQt5.QtGui import QFont

class HistoryTableViewDelegate( qstyledItemDelegate ):
    def __init__( self,history_table_view ):
        super().__init__( history_table_view )
    
    def createEditor(self,parent,option,index):
        editor = QPlainTextEdit( parent )
        editor.setSizeAdjustPolicy( QPlainTextEdit.SizeAdjustPolicy.AdjustToContents )
        self.model = index.model()
        column = index.column()
        row = index.row()
        parent.parent().verticalHeader().resizeSection( row,150 )
        parent_font = QFont( self.parent().font() )
        parent_font.setPointSize( self.parent().font().pointSize() )
        editor.setFont( parent_font )
        def end_edit():
            print( f'end edit...')
            self.setModelData( editor,self.model,index )
            # how to end the edit session programmatically at this point?
            # self.destroyEditor( editor,index ) 
            
        end_edit_shortcut = QShortcut(  'Alt+E',editor,context = Qt.ShortcutContext.WidgetShortcut )
        end_edit_shortcut.activated.connect( end_edit )
        return editor
    
    def setEditorData(self,index ):
        # NB superclass method sets the editor's text to empty string...
        self.original_text = index.model().data( index,Qt.displayRole )
        editor.insertPlainText( str( self.original_text ) )     
        
class HistoryTableModel( QAbstractTableModel ):
    def __init__( self ):
        super(HistoryTableModel,self).__init__()
        data = [
              [4,9,2],[1,0],[3,5,]
        self._data = data

    def data(self,index,role):
        if role == Qt.displayRole:
            return self._data[index.row()][index.column()]

    def rowCount(self,index):
        return len(self._data)

    def columnCount(self,index):
        return len(self._data[0])
    
    def flags(self,index):
        return Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsEditable
    
    def setData(self,value,role ):
        if role == Qt.EditRole:
            self._data[ index.row() ][ index.column() ] = value  
        return True  

class Ui_MainWindow(object):
    def setupUi(self,MainWindow):
        MainWindow.resize(600,700 )
        self.centralwidget = QWidget(MainWindow)
        self.verticalLayoutWidget = QWidget(self.centralwidget)
        self.verticalLayoutWidget.setGeometry( QRect(20,20,500,500))
        self.verticalLayout = QVBoxLayout(self.verticalLayoutWidget)
        self.comps = []
        self.table_view = QTableView(self.verticalLayoutWidget)
        self.comps.append( self.table_view )
        self.table_view.setGeometry(QRect(20,200,200))
        self.verticalLayout.addWidget(self.table_view)
        self.table_view.setModel( HistoryTableModel() )
        self.table_view.setTabKeyNavigation(False)
        self.table_view.setItemDelegate( HistoryTableViewDelegate( self.table_view ))
        MainWindow.setCentralWidget(self.centralwidget)

class MainWindow(QMainWindow):
    def __init__(self):
        super(MainWindow,self).__init__()
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

app = QApplication(sys.argv)
application = MainWindow()
application.show()
sys.exit(app.exec())

我想拥有一个多行编辑器，所以我认为我已经理解要走的路是QPlainTextEdit。尽管通过上述操作，按Alt-E会将数据提交到模型，但实际上并没有结束会话。例如，如果用鼠标单击另一个单元格，则可以看到已编辑的多行数据仍保留在已编辑的单元格中，并且以某种方式也结束了编辑会话。

如何以编程方式结束会话？

NB在按Alt-E后再按Escape是一种方法（两次击键）...但是我本质上想做的是使用QLineEdit编辑器按Enter所做的任何编程操作。

解决方法

知道了...

def end_edit():
    self.setModelData( editor,self.model,index )
    self.closeEditor.emit( editor )

edit edit pyqt5 python qtableview