如何在PyQt的QTableView的每个单元格中添加右键菜单 [英] how to add a right click menu to each cell of QTableView in PyQt
问题描述
我想在右键单击菜单的QTAbleView的每个单元格中添加一个右键单击菜单以删除,重命名或打开图像,我尝试过发现所有人都试图将菜单添加到tableview的标题中,我在下面尝试过但这似乎在下面的代码中不起作用.
I want to add a right click menu to delete, rename or open image in each of cell of QTAbleView in the rigt click menu, I have tried and found everyone is trying to add menu to a header in tableview, i tried below but that seems not working in the code below..
class GalleryUi(QtGui.QTableView):
""" Class contains the methods that forms the
UI of Image galery
"""
def __init__(self, imagesPathLst=None, parent=None):
super(GalleryUi, self).__init__(parent)
self.__sw = QtGui.QDesktopWidget().screenGeometry(self).width()
self.__sh = QtGui.QDesktopWidget().screenGeometry(self).height()
self.__animRate = 1200
self._imagesPathLst = imagesPathLst
self._thumb_width = 200
self._thumb_height = self._thumb_width + 20
self.setUpWindow(initiate=True)
self._startControlBar()
self._connections()
def contextMenuEvent(self, event):
index = self.indexAt(event.pos())
menu = QtGui.QMenu()
renameAction = QtGui.QAction('Exit', self)
renameAction.triggered.connect(self.close)
self.menu.addAction(renameAction)
self.menu.popup(QtGui.QCursor.pos())
def closeEvent(self,event):
# in case gallery is launched by Slideshow this is not needed
if hasattr(self, 'bar'):
self.bar.close()
def _startControlBar(self):
if not self._slideShowWin:
self.bar = controlBar.ControlBar()
self.bar.show()
self.bar.exitBtn.clicked.connect(self.close)
self.bar.openBtn.clicked.connect(self.selectSetNewPath)
def _connections(self):
self.setContextMenuPolicy(QtCore.Qt.CustomContextMenu)
self.connect(self, QtCore.SIGNAL(self.customContextMenuRequested(QtCore.QPoint)), self, QtCore.SLOT(displayMenu(QtCore.QPoint)))
def displayMenu(self, pos):
self.menu = QtGui.QMenu()
self.menu.addAction(self.close)
self.menu.exec_(self.mapToGlobal(event.pos()))
def selectSetNewPath(self):
path = utils._browseDir("Select the directory that contains images")
self._imagesPathLst = utils.ingestData(path)
# sets model when new folder is choosen
self.updateModel()
def setUpWindow(self, initiate=False):
""" Method to setup window frameless and fullscreen,
setting up thumbnaul size and animation rate
"""
if not self._imagesPathLst:
self.selectSetNewPath()
# sets model once at startup when window is being drawn!
if initiate:
self.updateModel()
self.setGeometry(0, 0, self.__sw, self.__sh)
self.setColumnWidth(self._thumb_width, self._thumb_height)
self.setShowGrid(False)
self.setWordWrap(True)
self.show()
self.resizeColumnsToContents()
self.resizeRowsToContents()
self.selectionModel().selectionChanged.connect(self.selChanged)
def updateModel(self):
col = self.__sw/self._thumb_width
self._twoDLst = utils.convertToTwoDList(self._imagesPathLst, col)
lm = MyListModel(self._twoDLst, col,
(self._thumb_width, self._thumb_height), self)
self.setModel(lm)
def keyPressEvent(self, keyevent):
""" Capture key to exit, next image, previous image,
on Escape , Key Right and key left respectively.
"""
event = keyevent.key()
if event == QtCore.Qt.Key_Escape:
self._exitGallery()
def main(imgLst=None):
""" method to start gallery standalone
"""
app = QtGui.QApplication(sys.argv)
window = GalleryUi(imgLst)
window.raise_()
sys.exit(app.exec_())
if __name__ == '__main__':
current_path = os.getcwd()
if len(sys.argv) > 1:
current_path = sys.argv[1:]
main(utils.ingestData(current_path))
推荐答案
QTableView
具有contextMenuEvent()
事件,以显示右键菜单:
QTableView
has contextMenuEvent()
event, to show a right-click menu:
- 在此事件中创建一个
QMenu
- 在
QMenu
中添加一些 - 使用
QAction
的 - 在
QMenu
上呼叫popup(QCursor.pos())
QAction
triggered
信号将每个QAction
连接到插槽
- Create a
QMenu
inside this event - Add some
QAction
s toQMenu
- connect each
QAction
to slots usingtriggered
signal ofQAction
- call
popup(QCursor.pos())
onQMenu
当用户右键单击tableView时,将选择鼠标指针下方的单元格,同时将显示一个菜单.当用户在菜单上选择一个动作时,将调用所连接的插槽,在该插槽中获取所选表格的单元格,然后对该单元格执行所需的操作.
When user right-click the tableView the cell under the mouse pointer will be selected and at the same time a menu will appear. When user selects an action on the menu, the connected slot will be called, get the selected cell of tabel in this slot and perform the required action on this cell.
...
def contextMenuEvent(self, event):
self.menu = QtGui.QMenu(self)
renameAction = QtGui.QAction('Rename', self)
renameAction.triggered.connect(lambda: self.renameSlot(event))
self.menu.addAction(renameAction)
# add other required actions
self.menu.popup(QtGui.QCursor.pos())
...
def renameSlot(self, event):
print "renaming slot called"
# get the selected row and column
row = self.tableWidget.rowAt(event.pos().y())
col = self.tableWidget.columnAt(event.pos().x())
# get the selected cell
cell = self.tableWidget.item(row, col)
# get the text inside selected cell (if any)
cellText = cell.text()
# get the widget inside selected cell (if any)
widget = self.tableWidget.cellWidget(row, col)
...
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