本文整理汇总了Python中PyQt4.QtGui.QTextDocument.firstBlock方法的典型用法代码示例。如果您正苦于以下问题：Python QTextDocument.firstBlock方法的具体用法？Python QTextDocument.firstBlock怎么用？Python QTextDocument.firstBlock使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt4.QtGui.QTextDocument的用法示例。
在下文中一共展示了QTextDocument.firstBlock方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: html_copy
# 需要导入模块: from PyQt4.QtGui import QTextDocument [as 别名]
# 或者: from PyQt4.QtGui.QTextDocument import firstBlock [as 别名]
def html_copy(cursor, scheme="editor", number_lines=False):
"""Return a new QTextDocument with highlighting set as HTML textcharformats.
The cursor is a cursor of a document.Document instance. If the cursor
has a selection, only the selection is put in the new document.
If number_lines is True, line numbers are added.
"""
data = textformats.formatData(scheme)
doc = QTextDocument()
doc.setDefaultFont(data.font)
doc.setPlainText(cursor.document().toPlainText())
if metainfo.info(cursor.document()).highlighting:
highlight(doc, mapping(data), ly.lex.state(documentinfo.mode(cursor.document())))
if cursor.hasSelection():
# cut out not selected text
start, end = cursor.selectionStart(), cursor.selectionEnd()
cur1 = QTextCursor(doc)
cur1.setPosition(start, QTextCursor.KeepAnchor)
cur2 = QTextCursor(doc)
cur2.setPosition(end)
cur2.movePosition(QTextCursor.End, QTextCursor.KeepAnchor)
cur2.removeSelectedText()
cur1.removeSelectedText()
if number_lines:
c = QTextCursor(doc)
f = QTextCharFormat()
f.setBackground(QColor("#eeeeee"))
if cursor.hasSelection():
num = cursor.document().findBlock(cursor.selectionStart()).blockNumber() + 1
last = cursor.document().findBlock(cursor.selectionEnd())
else:
num = 1
last = cursor.document().lastBlock()
lastnum = last.blockNumber() + 1
padding = len(format(lastnum))
block = doc.firstBlock()
while block.isValid():
c.setPosition(block.position())
c.setCharFormat(f)
c.insertText("{0:>{1}d} ".format(num, padding))
block = block.next()
num += 1
return doc