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我正在QTableView使用自定义模型实现一个,我需要一个看起来像这样的单元格:

目前,我使用下面的委托(改编自其他答案)在单个单元格上绘制标志(html 彩色文本),单击整个单元格会更改标志。

class HTMLDelegate(QtGui.QStyledItemDelegate):
    def Doc(self, options):
        if options.text == "0":
            return ""
        elif options.text == "1":
            return "<b><font align='right' color='green'>V</font></b>"
        elif options.text == "2":
            return "<font align='right' color='#FF8400'>!!</font>"
        elif options.text == "3":
            return "<b><font align='right' color='#CC0000'>F</font></b>"
        elif options.text == "4":
            return "<b><font align='right' color='#000000'>X</font></b>"

    def paint(self, painter, option, index):
        options = QtGui.QStyleOptionViewItemV4(option)
        self.initStyleOption(options,index)

        style = QtGui.QApplication.style() if options.widget is None else options.widget.style()

        doc = QtGui.QTextDocument()

        background = None
        doc.setHtml(self.Doc(options))

        options.text = ""
        style.drawControl(QtGui.QStyle.CE_ItemViewItem, options, painter);

        ctx = QtGui.QAbstractTextDocumentLayout.PaintContext()

        # Highlighting text if item is selected
        #if (optionV4.state & QStyle::State_Selected)
        #    ctx.palette.setColor(QPalette::Text, optionV4.palette.color(QPalette::Active, QPalette::HighlightedText));

        textRect = style.subElementRect(QtGui.QStyle.SE_ItemViewItemText, options, None)
        painter.save()
        if background:
            painter.fillRect(options.rect, QtCore.Qt.yellow)
        painter.translate(textRect.topLeft())
        painter.setClipRect(textRect.translated(-textRect.topLeft()))

        doc.documentLayout().draw(painter, ctx)

        painter.restore()

    def editorEvent(self, event, model, option, index):
        if not (index.flags() & QtCore.Qt.ItemIsEditable) > 0:
            return False

        # Do not change the checkbox-state
        if event.type() == QtCore.QEvent.MouseButtonRelease or event.type() == QtCore.QEvent.MouseButtonDblClick:
            if event.button() != QtCore.Qt.LeftButton:
                return False
            if event.type() == QtCore.QEvent.MouseButtonDblClick:
                return True
        elif event.type() == QtCore.QEvent.KeyPress:
            if event.key() != QtCore.Qt.Key_Space and event.key() != QtCore.Qt.Key_Select:
                return False
        else:
            return False
                         
        # Change the flag-state
        self.setModelData(None, model, index)
        return False


    def setModelData (self, editor, model, index):
        '''
        The user wanted to change the old flag into the next
        '''
        #newValue = not bool(index.model().data(index, QtCore.Qt.DisplayRole))
        #model.setData(index, newValue, QtCore.Qt.EditRole)
        oldFlagIndex = model.index(index.row(), COD_COL_FLAGS)
        oldFlag = model.data(oldFlagIndex)

        if type(oldFlag) == long:
            newFlag = oldFlag + 1
            if newFlag > 4:
                newFlag = 0
        else:
            newFlag = 0
        model.setData(index, newFlag, QtCore.Qt.EditRole)

我怎样才能做到这一点?
我想到的选项是:

  • 绘制文本(丰富或简单)以及右侧像素图的委托

  • 绘制两个文本字符串(一个普通文本和一个富文本,或两个富文本)的委托,一个左对齐,一个右对齐

作为练习,但对于应用程序不是必需的,最好仅在单击而不是整个单元格时触发标志更改。

谢谢

4

1 回答 1

1

绘制事件有一个名为 option 的参数,它应该包含一个 rect 对象。该 rect 对象是所绘制内容的边界。您应该能够更改该矩形的宽度并为您希望绘制第二部分的位置创建一个新矩形。

rect = options.rect
options.rect = QtCore.QRect(rect.x(), rect.y(), rect.width()/2, rect.height())
style.drawControl(QtGui.QStyle.CE_ItemViewItem, options, painter);
options.rect = QtCore.QRect(rect.x()+rect.width()/2, rect.y(), rect.width()/2, rect.height())
options.text = "right side"
style.drawControl(QtGui.QStyle.CE_ItemViewItem, options, painter);
于 2013-11-21T18:27:18.080 回答