File indexing completed on 2024-11-24 04:52:56

 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
 
    This file is part of the Trojita Qt IMAP e-mail client,
    http://trojita.flaska.net/
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of
    the License or (at your option) version 3 or any later version
    accepted by the membership of KDE e.V. (or its successor approved
    by the membership of KDE e.V.), which shall act as a proxy
    defined in Section 14 of version 3 of the license.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "ReplaceSignature.h"
 #include <QTextBlock>
 #include <QTextCursor>
 #include <QTextDocument>
 
 namespace Composer {
 namespace Util {
 
 void replaceSignature(QTextDocument *document, const QString &newSignature)
 {
     // The QTextEdit is set up in such a way as to treat a fully terminated line as a standalone text block,
     // hence no newlines in the signature separator
     const QLatin1String signatureSeperator("-- ");
 
     QTextBlock block = document->lastBlock();
     while (block.isValid() && block.blockNumber() > 0) {
         if (block.text() == signatureSeperator) {
             // So this block holds the last signature separator -- great!
             break;
         }
         block = block.previous();
     }
 
     QTextCursor cursor(block);
     if (block.text() == signatureSeperator) {
         // Remove everything till the end of the document since the end of the previous block
         if (block.previous().isValid()) {
             // Prevent adding newlines when switching signatures
             block = block.previous();
             cursor = QTextCursor(block);
             cursor.movePosition(QTextCursor::EndOfBlock);
         }
         cursor.beginEditBlock();
         cursor.movePosition(QTextCursor::End, QTextCursor::KeepAnchor);
         cursor.removeSelectedText();
         cursor.endEditBlock();
     } else {
         // We have not removed anything, so we have to "fake" an edit action so that we're adding the signature to a correct place
         block = document->lastBlock();
         cursor = QTextCursor(block);
         cursor.movePosition(QTextCursor::EndOfBlock);
         cursor.beginEditBlock();
         cursor.endEditBlock();
     }
 
     if (!newSignature.isEmpty()) {
         cursor.joinPreviousEditBlock();
         cursor.insertBlock();
         cursor.insertText(signatureSeperator);
         cursor.insertBlock();
         cursor.insertText(newSignature);
         cursor.endEditBlock();
     }
 }
 
 }
 }