Python QTextDocument.documentLayout方法代码示例

# 需要导入模块: from PyQt5.Qt import QTextDocument [as 别名]
# 或者: from PyQt5.Qt.QTextDocument import documentLayout [as 别名]
class CcCommentsDelegate(QStyledItemDelegate):  # {{{

    '''
    Delegate for comments data.
    '''

    def __init__(self, parent):
        QStyledItemDelegate.__init__(self, parent)
        self.document = QTextDocument()

    def paint(self, painter, option, index):
        self.initStyleOption(option, index)
        style = QApplication.style() if option.widget is None \
                                                else option.widget.style()
        self.document.setHtml(option.text)
        style.drawPrimitive(QStyle.PE_PanelItemViewItem, option, painter, widget=option.widget)
        rect = style.subElementRect(QStyle.SE_ItemViewItemDecoration, option, self.parent())
        ic = option.icon
        if rect.isValid() and not ic.isNull():
            sz = ic.actualSize(option.decorationSize)
            painter.drawPixmap(rect.topLeft(), ic.pixmap(sz))
        ctx = QAbstractTextDocumentLayout.PaintContext()
        ctx.palette = option.palette
        if option.state & QStyle.State_Selected:
            ctx.palette.setColor(ctx.palette.Text, ctx.palette.color(ctx.palette.HighlightedText))
        textRect = style.subElementRect(QStyle.SE_ItemViewItemText, option, self.parent())
        painter.save()
        painter.translate(textRect.topLeft())
        painter.setClipRect(textRect.translated(-textRect.topLeft()))
        self.document.documentLayout().draw(painter, ctx)
        painter.restore()

    def createEditor(self, parent, option, index):
        m = index.model()
        col = m.column_map[index.column()]
        if check_key_modifier(Qt.ControlModifier):
            text = ''
        else:
            text = m.db.data[index.row()][m.custom_columns[col]['rec_index']]
        editor = CommentsDialog(parent, text, column_name=m.custom_columns[col]['name'])
        d = editor.exec_()
        if d:
            m.setData(index, (editor.textbox.html), Qt.EditRole)
        return None

    def setModelData(self, editor, model, index):
        model.setData(index, (editor.textbox.html), Qt.EditRole)

# 需要导入模块: from PyQt5.Qt import QTextDocument [as 别名]
# 或者: from PyQt5.Qt.QTextDocument import documentLayout [as 别名]
class CcCommentsDelegate(QStyledItemDelegate):  # {{{

    '''
    Delegate for comments data.
    '''

    def __init__(self, parent):
        QStyledItemDelegate.__init__(self, parent)
        self.document = QTextDocument()

    def paint(self, painter, option, index):
        self.initStyleOption(option, index)
        style = QApplication.style() if option.widget is None \
                                                else option.widget.style()
        self.document.setHtml(option.text)
        option.text = u''
        if hasattr(QStyle, 'CE_ItemViewItem'):
            style.drawControl(QStyle.CE_ItemViewItem, option, painter)
        ctx = QAbstractTextDocumentLayout.PaintContext()
        ctx.palette = option.palette  # .setColor(QPalette.Text, QColor("red"));
        if hasattr(QStyle, 'SE_ItemViewItemText'):
            textRect = style.subElementRect(QStyle.SE_ItemViewItemText, option)
            painter.save()
            painter.translate(textRect.topLeft())
            painter.setClipRect(textRect.translated(-textRect.topLeft()))
            self.document.documentLayout().draw(painter, ctx)
            painter.restore()

    def createEditor(self, parent, option, index):
        m = index.model()
        col = m.column_map[index.column()]
        text = m.db.data[index.row()][m.custom_columns[col]['rec_index']]
        editor = CommentsDialog(parent, text, column_name=m.custom_columns[col]['name'])
        d = editor.exec_()
        if d:
            m.setData(index, (editor.textbox.html), Qt.EditRole)
        return None

    def setModelData(self, editor, model, index):
        model.setData(index, (editor.textbox.html), Qt.EditRole)

# 需要导入模块: from PyQt5.Qt import QTextDocument [as 别名]
# 或者: from PyQt5.Qt.QTextDocument import documentLayout [as 别名]
class DocumentFactory:
    
    def __init__(self, contentPath, formatManager):
        self.formatManager = formatManager
        self.contentPath = contentPath


    def createDocument(self, rootFrame):

        # Create empty document
        self.document = QTextDocument()
        self.document.setUndoRedoEnabled(False)
        self.document.setIndentWidth(20)

        # Register a renderer for custom text objects
        mo = CustomObjectRenderer()
        mo.setParent(self.document)
        self.document.documentLayout().registerHandler(QTextCharFormat.UserObject+1, mo);

        self.cursor = QTextCursor(self.document)
        self.listLevel = 0
        self.paraFormat = None

        # add all root paragraphs
        for n in rootFrame.children:
            self.addNode(n)

        # Clean up the first paragraph if document is not empty
        self.cursor.movePosition(QTextCursor.Start)
        b = self.cursor.block()
        if b.length() == 1:
            cursor = QTextCursor(self.document.findBlockByLineNumber(0))
            cursor.select(QTextCursor.BlockUnderCursor)
            cursor.deleteChar()

        return self.document


    def addNode(self, node):
        if type(node) == Paragraph:
            self.paraFormat = self.formatManager.getFormat(node.style)

            # NOTE: "The block char format is the format used when inserting 
            #        text at the beginning of an empty block."
            #       See also below.
            self.cursor.insertBlock(self.paraFormat.getBlockFormat(), self.paraFormat.getCharFormat())
            # self.cursor.insertFragment(QTextDocumentFragment.fromPlainText(''))

            if self.listLevel > 0:
                # TODO: use list style from list node - requires a stack, though ...
                listStyle = ('itemizedlist', 'level', str(self.listLevel))
                newList = self.cursor.createList(self.formatManager.getFormat(listStyle).getListFormat())
            for n in node.children:
                self.addNode(n)

        elif type(node) == List:
            self.listLevel += 1
            for n in node.children:
                self.addNode(n)
            self.listLevel -= 1

        elif type(node) is ImageFragment:
            imageObject = ImageObject()
            imagePath = os.path.join(self.contentPath, node.image)
            imageObject.setName(imagePath)

            imageObjectFormat = QTextCharFormat()
            imageObjectFormat.setObjectType(QTextFormat.UserObject + 1)
            imageObjectFormat.setProperty(QTextFormat.UserProperty + 1, imageObject)
            self.cursor.insertText('\ufffc', imageObjectFormat);

        elif type(node) is MathFragment:
            mathFormula = MathFormulaObject()
            mathFormula.setFormula(node.text)
            mathFormula.image = node.image #  renderFormula()

            mathObjectFormat = QTextCharFormat()
            mathObjectFormat.setObjectType(QTextFormat.UserObject + 1)
            mathObjectFormat.setVerticalAlignment(QTextCharFormat.AlignMiddle)
            mathObjectFormat.setProperty(QTextFormat.UserProperty + 1, mathFormula)
            self.cursor.insertText('\ufffc', mathObjectFormat);
        elif type(node) is TextFragment:
            text = node.text.replace('\n', '\u2028')
            if node.href is not None:
                fmt = self.formatManager.getFormat(('link', None, None))   # TODO!
                charFmt = fmt.getCharFormat()
                charFmt.setAnchorHref(node.href)
                self.cursor.insertText(text, charFmt)
            else:
                # "The block char format is the format used when inserting text at the beginning of an empty block.
                # Hence, the block char format is only useful for the first fragment -
                # once a fragment is inserted with a different style, and afterwards
                # another fragment is inserted with no specific style, we need to reset
                # the char format to the block's char format explicitly!
    
                if node.style is not None:
                    fmt = self.formatManager.getFormat(node.style)
                else:
                    fmt = self.paraFormat

#.........这里部分代码省略.........