kworship/filters/zionworx/KwZwStringList.cpp

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   KWorship is free software: you can redistribute it and/or modify      *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation, either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   KWorship is distributed in the hope that it will be useful,           *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 /**
  21  * @file KwZwStringList.cpp
  22  * @brief String list encoding widget.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "KwZwStringList.h"
  27
  28 #include <KLocale>
  29
  30 #include <QDataStream>
  31 #include <QLineEdit>
  32 #include <QTextEdit>
  33 #include <QVBoxLayout>
  34 #include <QPushButton>
  35 #include <QFile>
  36
  37 KwZwStringList::KwZwStringList()
  38 : m_list()
  39 , m_edit(new QLineEdit(this))
  40 , m_output(new QTextEdit(this))
  41 {
  42   QVBoxLayout* layout = new QVBoxLayout(this);
  43   layout->addWidget(m_edit);
  44
  45   QPushButton* btnAdd = new QPushButton(i18n("Add string"), this);
  46   layout->addWidget(btnAdd);
  47   connect(btnAdd, SIGNAL(clicked(bool)), this, SLOT(addItem()));
  48
  49   layout->addWidget(m_output);
  50   m_output->setReadOnly(true);
  51 }
  52
  53 QByteArray KwZwStringList::encodeList(const QStringList& stringlist)
  54 {
  55   QByteArray result;
  56
  57   // Type of object
  58   QByteArray type = "Strings";
  59   result.append((char)type.size());
  60   result.append(type);
  61
  62   // Not sure what this byte is for, perhaps the number of bytes to represent something
  63   char sep = '\x06';
  64   result.append((char)0x01);
  65
  66   // Each item
  67   foreach (QString item, stringlist)
  68   {
  69     /// @todo Check the assumption that lines are encoded in utf-8
  70     QByteArray encoded = item.toUtf8();
  71     /// @todo Find what to do if length >= 255
  72     Q_ASSERT(encoded.size() < 255);
  73     // Length followed by string encoding
  74     result.append(sep);
  75     char size = encoded.size();
  76     result.append(QByteArray::fromRawData(&size, 1));
  77     result.append(encoded);
  78   }
  79   result.append('\0');
  80   return result;
  81 }
  82
  83 void KwZwStringList::addItem()
  84 {
  85   m_list += m_edit->text();
  86   m_edit->setText("");
  87   m_output->setText(m_list.join("\n"));
  88
  89   QByteArray result = encodeList(m_list);
  90   {
  91     QFile op("dump");
  92     op.open(QIODevice::WriteOnly);
  93     op.write(result);
  94   }
  95   {
  96     QFile op("dump.base64");
  97     op.open(QIODevice::WriteOnly);
  98     op.write(result.toBase64());
  99   }
 100 }