diff options
Diffstat (limited to 'src/gui/text')
| -rw-r--r-- | src/gui/text/qtextdocument.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/gui/text/qtextdocument.cpp b/src/gui/text/qtextdocument.cpp index 195dc28..c35069f 100644 --- a/src/gui/text/qtextdocument.cpp +++ b/src/gui/text/qtextdocument.cpp @@ -291,7 +291,18 @@ QTextCodec *Qt::codecForHtml(const QByteArray &ba) by an editor widget through the undo() and redo() slots; the document also provides contentsChanged(), undoAvailable(), and redoAvailable() signals that inform connected editor widgets about the state of the undo/redo - system. + system. The following are the undo/redo operations of a QTextDocument: + + \list + \o Insertion or removal of characters. A sequence of insertions or removals + within the same text block are regarded as a single undo/redo operation. + \o Insertion or removal of text blocks. Sequences of insertion or removals + in a single operation (e.g., by selecting and then deleting text) are + regarded as a single undo/redo operation. + \o Text character format changes. + \o Text block format changes. + \o Text block group format changes. + \endlist \sa QTextCursor, QTextEdit, \link richtext.html Rich Text Processing\endlink , {Text Object Example} */ |