python - 如何在 QTableView 中包含一列进度条？

Question

我开始在 QGIS 3 上创建一个插件，我的插件需要 QTableView 中的进度条。我想弄清楚如何在 PyQt5 的 QTableView 中添加一列进度条。但是我找不到关于我的问题的任何相关代码或资源。

我的 table

        w= self.tasklist_tabv
        delegate = ProgressDelegate(w)
        w.setItemDelegateForColumn(2, delegate)

        w.setHorizontalHeaderLabels(["ID", "Name", "Progress"])

        for r, (_id, _name, _progress) in enumerate(data):

            it_id = QtGui.QTableWidgetItem(_id)
            it_name = QtGui.QTableWidgetItem(_name)
            it_progress = QtGui.QTableWidgetItem()
            chkBoxItem = QtGui.QTableWidgetItem()
            chkBoxItem.setFlags(QtCore.Qt.ItemIsUserCheckable | QtCore.Qt.ItemIsEnabled)
            chkBoxItem.setCheckState(QtCore.Qt.Unchecked)
            it_progress.setData(QtCore.Qt.DisplayRole+1000, _progress)
            w.insertRow(w.rowCount())

            for c, item in enumerate((it_id, it_name, it_progress)):
                w.setItem(r, c, item)

            for c, item  in enumerate((it_id, it_name, chkBoxItem)):
                w.setItem(r, c+1, item)

class ProgressDelegate(QtGui.QStyledItemDelegate):
def paint(self, painter, option, index):
    progress = index.data(QtCore.Qt.DisplayRole+1000)

    opt = QtGui.QStyleOptionProgressBar()
    opt.rect = option.rect
    opt.minimum = 0
    opt.maximum = 100
    opt.progress = progress
    opt.text = "{}%".format(progress)
    opt.textVisible = True
    QtGui.QApplication.style().drawControl(QtGui.QStyle.CE_ProgressBar, opt, painter)

Answer 1

您可以使用委托(delegate):

QTableView:

- PyQt5

from PyQt5 import QtCore, QtGui, QtWidgets

data = [("1", "Baharak", 10), ("2", "Darwaz", 60),
        ("3", "Fays abad", 20), ("4", "Ishkashim", 80), 
        ("5", "Jurm", 100)]

class ProgressDelegate(QtWidgets.QStyledItemDelegate):
    def paint(self, painter, option, index):
        progress = index.data(QtCore.Qt.UserRole+1000)
        opt = QtWidgets.QStyleOptionProgressBar()
        opt.rect = option.rect
        opt.minimum = 0
        opt.maximum = 100
        opt.progress = progress
        opt.text = "{}%".format(progress)
        opt.textVisible = True
        QtWidgets.QApplication.style().drawControl(QtWidgets.QStyle.CE_ProgressBar, opt, painter)

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = QtWidgets.QTableView()
    delegate = ProgressDelegate(w)
    w.setItemDelegateForColumn(2, delegate)
    model = QtGui.QStandardItemModel(0, 3)
    model.setHorizontalHeaderLabels(["ID", "Name", "Progress"])
    for _id, _name, _progress in data:
        it_id = QtGui.QStandardItem(_id)
        it_name = QtGui.QStandardItem(_name)
        it_progress = QtGui.QStandardItem()
        it_progress.setData(_progress, QtCore.Qt.UserRole+1000)
        model.appendRow([it_id, it_name, it_progress])
    w.setModel(model)
    w.show()
    sys.exit(app.exec_())

PyQt4

from PyQt4 import QtCore, QtGui

data = [("1", "Baharak", 10), ("2", "Darwaz", 60),
        ("3", "Fays abad", 20), ("4", "Ishkashim", 80), 
        ("5", "Jurm", 100)]

class ProgressDelegate(QtGui.QStyledItemDelegate):
    def paint(self, painter, option, index):
        progress = index.data(QtCore.Qt.UserRole+1000)
        opt = QtGui.QStyleOptionProgressBar()
        opt.rect = option.rect
        opt.minimum = 0
        opt.maximum = 100
        if hasattr(progress, 'toPyObject'):
            progress = progress.toPyObject()
        opt.progress = progress
        opt.text = "{}%".format(progress)
        opt.textVisible = True
        QtGui.QApplication.style().drawControl(QtGui.QStyle.CE_ProgressBar, opt, painter)

if __name__ == '__main__':
    import sys
    app = QtGui.QApplication(sys.argv)
    w = QtGui.QTableView()
    delegate = ProgressDelegate(w)
    w.setItemDelegateForColumn(2, delegate)
    model = QtGui.QStandardItemModel(0, 3, w)
    model.setHorizontalHeaderLabels(["ID", "Name", "Progress"])
    for _id, _name, _progress in data:
        it_id = QtGui.QStandardItem(_id)
        it_name = QtGui.QStandardItem(_name)
        it_progress = QtGui.QStandardItem()
        it_progress.setData(_progress, QtCore.Qt.UserRole+1000)
        model.appendRow([it_id, it_name, it_progress])
    w.setModel(model)
    w.show()
    sys.exit(app.exec_())

---

QTableWidget:

- PyQt5

from PyQt5 import QtCore, QtGui, QtWidgets

data = [("1", "Baharak", 10), ("2", "Darwaz", 60),
        ("3", "Fays abad", 20), ("4", "Ishkashim", 80), 
        ("5", "Jurm", 100)]

class ProgressDelegate(QtWidgets.QStyledItemDelegate):
    def paint(self, painter, option, index):
        progress = index.data(QtCore.Qt.UserRole+1000)
        opt = QtWidgets.QStyleOptionProgressBar()
        opt.rect = option.rect
        opt.minimum = 0
        opt.maximum = 100
        opt.progress = progress
        opt.text = "{}%".format(progress)
        opt.textVisible = True
        QtWidgets.QApplication.style().drawControl(QtWidgets.QStyle.CE_ProgressBar, opt, painter)

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = QtWidgets.QTableWidget(0, 3)
    delegate = ProgressDelegate(w)
    w.setItemDelegateForColumn(2, delegate)

    w.setHorizontalHeaderLabels(["ID", "Name", "Progress"])
    for r, (_id, _name, _progress) in enumerate(data):
        it_id = QtWidgets.QTableWidgetItem(_id)
        it_name = QtWidgets.QTableWidgetItem(_name)
        it_progress = QtWidgets.QTableWidgetItem()
        it_progress.setData(QtCore.Qt.UserRole+1000, _progress)
        w.insertRow(w.rowCount())
        for c, item in enumerate((it_id, it_name, it_progress)):
            w.setItem(r, c, item)
    w.show()
    sys.exit(app.exec_())

PyQt4

from PyQt4 import QtCore, QtGui

data = [("1", "Baharak", 10), ("2", "Darwaz", 60),
        ("3", "Fays abad", 20), ("4", "Ishkashim", 80), 
        ("5", "Jurm", 100)]

class ProgressDelegate(QtGui.QStyledItemDelegate):
    def paint(self, painter, option, index):
        progress = index.data(QtCore.Qt.UserRole+1000)
        opt = QtGui.QStyleOptionProgressBar()
        opt.rect = option.rect
        opt.minimum = 0
        opt.maximum = 100
        if hasattr(progress, 'toPyObject'):
            progress = progress.toPyObject()
        opt.progress = progress
        opt.text = "{}%".format(progress)
        opt.textVisible = True
        QtGui.QApplication.style().drawControl(QtGui.QStyle.CE_ProgressBar, opt, painter)

if __name__ == '__main__':
    import sys
    app = QtGui.QApplication(sys.argv)
    w = QtGui.QTableWidget(0, 3)
    delegate = ProgressDelegate(w)
    w.setItemDelegateForColumn(2, delegate)

    w.setHorizontalHeaderLabels(["ID", "Name", "Progress"])
    for r, (_id, _name, _progress) in enumerate(data):
        it_id = QtGui.QTableWidgetItem(_id)
        it_name = QtGui.QTableWidgetItem(_name)
        it_progress = QtGui.QTableWidgetItem()
        it_progress.setData(QtCore.Qt.UserRole+1000, _progress)
        w.insertRow(w.rowCount())
        for c, item in enumerate((it_id, it_name, it_progress)):
            w.setItem(r, c, item)
    w.show()
    sys.exit(app.exec_())

---