继承者： QTextList
PySide.QtGui.QTextBlockGroup class provides a container for text blocks within a PySide.QtGui.QTextDocument .
Block groups can be used to organize blocks of text within a document. They maintain an up-to-date list of the text blocks that belong to them, even when text blocks are being edited.
Each group has a parent document which is specified when the group is constructed.
Text blocks can be inserted into a group with PySide.QtGui.QTextBlockGroup.blockInserted() , and removed with PySide.QtGui.QTextBlockGroup.blockRemoved() . If a block's format is changed, PySide.QtGui.QTextBlockGroup.blockFormatChanged() 被调用。
The list of blocks in the group is returned by PySide.QtGui.QTextBlockGroup.blockList() . Note that the blocks in the list are not necessarily adjacent elements in the document; for example, the top-level items in a multi-level list will be separated by the items in lower levels of the list.
| 参数： | doc – PySide.QtGui.QTextDocument |
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Creates a new new block group for the given document .
警告
This function should only be called from QTextDocument.createObject() .
| 参数： | block – PySide.QtGui.QTextBlock |
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This function is called whenever the specified block of text is changed. The text block is a member of this group.
基类实现什么都不做。
| 参数： | block – PySide.QtGui.QTextBlock |
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Appends the given block to the end of the group.
警告
If you reimplement this function you must call the base class implementation.
| 返回类型： |
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Returns a (possibly empty) list of all the blocks that are part of the block group.
| 参数： | block – PySide.QtGui.QTextBlock |
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移除给定 block from the group; the block itself is not deleted, it simply isn't a member of this group anymore.
