From 4c489c2ecfbcc6d0f8f7ec52b5e4d81e15ce4818 Mon Sep 17 00:00:00 2001 From: Geir Vattekar Date: Wed, 15 Sep 2010 15:35:54 +0200 Subject: Doc: Listed undoable operations in QTextDocument Task-number: QT-1212 Reviewed-by: David Boddie --- src/gui/text/qtextdocument.cpp | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) 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} */ -- cgit v0.12 ion framework that is used for developing application software that can be run on various software and hardware platforms with little or no change in the underlying codebase, while still being a native application with native capabilities and speed.
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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
**     the names of its contributors may be used to endorse or promote
**     products derived from this software without specific prior written
**     permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/

//! [0]
        QProcess *process = new QProcess(this);
        QString app = QLibraryInfo::location(QLibraryInfo::BinariesPath)
            + QLatin1String("/assistant");
        
        process->start(app, QStringList() << QLatin1String("-enableRemoteControl"));
        if (!process->waitForStarted()) {
            QMessageBox::critical(this, tr("Remote Control"),
                tr("Could not start Qt Assistant from %1.").arg(app));
            return;
        }
        
        // show index page
        QTextStream str(process);
        str << QLatin1String("SetSource qthelp://mycompany.com/doc/index.html")
            << QLatin1Char('\0') << endl;
    }
//! [0]


//! [1]
        CONFIG += assistant
//! [1]