optiondialog.cpp 80.1 KB
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/*
 *   kdiff3 - Text Diff And Merge Tool
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 *   Copyright (C) 2002-2009  Joachim Eibl, joachim.eibl at gmx.de
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 *
 *   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) any later version.
 *
 *   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, write to the Free Software
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 *   Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA.
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 *
 */
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#include <QApplication>
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#include <QCheckBox>
#include <QComboBox>
#include <QLabel>
#include <QLayout>
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#include <QLineEdit> 
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#include <QToolTip>
#include <QRadioButton>
#include <QGroupBox>
#include <QTextCodec>
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#include <QDir>
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#include <QSettings>
#include <QLocale>
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#include <QGridLayout>
#include <QPixmap>
#include <QFrame>
#include <QVBoxLayout>
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#include <QFontDatabase>
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#include <QFontDialog>
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#include <KColorButton>
#include <KFontChooser>
#include <KIconLoader>
#include <KSharedConfig>
#include <KMessageBox>
#include <KMainWindow> //For ktoolbar.h
#include <KToolBar>
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#include <KHelpClient>
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#include <KLocalizedString>
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#include <map>
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#include "optiondialog.h"
#include "diff.h"
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#include "smalldialogs.h"
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//FIXME: Verifiy which includes are needed only for kde and why.
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#ifndef KREPLACEMENTS_H
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#include <KConfigGroup>
#include <QDialogButtonBox>
#include <QPushButton>
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#endif

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#define KDIFF3_CONFIG_GROUP "KDiff3 Options"

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static QString s_historyEntryStartRegExpToolTip;
static QString s_historyEntryStartSortKeyOrderToolTip;
static QString s_autoMergeRegExpToolTip;
static QString s_historyStartRegExpToolTip;

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void OptionDialog::addOptionItem(OptionItem* p)
{
   m_optionItemList.push_back(p);
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}

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class OptionItem
{
public:
   OptionItem( OptionDialog* pOptionDialog, const QString& saveName )
   {
      assert(pOptionDialog!=0);
      pOptionDialog->addOptionItem( this );
      m_saveName = saveName;
      m_bPreserved = false;
   }
   virtual ~OptionItem(){}
   virtual void setToDefault()=0;
   virtual void setToCurrent()=0;
   virtual void apply()=0;
   virtual void write(ValueMap*)=0;
   virtual void read(ValueMap*)=0;
   void doPreserve(){ if (!m_bPreserved){ m_bPreserved=true; preserve(); } }
   void doUnpreserve(){ if( m_bPreserved ){ unpreserve(); } }
   QString getSaveName(){return m_saveName;}
protected:
   virtual void preserve()=0;
   virtual void unpreserve()=0;
   bool m_bPreserved;
   QString m_saveName;
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};

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template <class T>
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class OptionItemT : public OptionItem
{
public:
  OptionItemT( OptionDialog* pOptionDialog, const QString& saveName ) 
  : OptionItem(pOptionDialog,saveName ) 
  {}
  
protected:
   virtual void preserve(){ m_preservedVal = *m_pVar; }
   virtual void unpreserve(){ *m_pVar = m_preservedVal; }
   T* m_pVar;
   T m_preservedVal;
   T m_defaultVal;
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};

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class OptionCheckBox : public QCheckBox, public OptionItemT<bool>
{
public:
   OptionCheckBox( QString text, bool bDefaultVal, const QString& saveName, bool* pbVar,
                   QWidget* pParent, OptionDialog* pOD )
   : QCheckBox( text, pParent ), OptionItemT<bool>( pOD, saveName )
   {
      m_pVar = pbVar;
      m_defaultVal = bDefaultVal;
   }
   void setToDefault(){ setChecked( m_defaultVal );      }
   void setToCurrent(){ setChecked( *m_pVar );           }
   void apply()       { *m_pVar = isChecked();                              }
   void write(ValueMap* config){ config->writeEntry(m_saveName, *m_pVar );   }
   void read (ValueMap* config){ *m_pVar = config->readBoolEntry( m_saveName, *m_pVar ); }
private:
   OptionCheckBox( const OptionCheckBox& ); // private copy constructor without implementation
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};

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class OptionRadioButton : public QRadioButton, public OptionItemT<bool>
{
public:
   OptionRadioButton( QString text, bool bDefaultVal, const QString& saveName, bool* pbVar,
                   QWidget* pParent, OptionDialog* pOD )
   : QRadioButton( text, pParent ), OptionItemT<bool>( pOD, saveName )
   {
      m_pVar = pbVar;
      m_defaultVal = bDefaultVal;
   }
   void setToDefault(){ setChecked( m_defaultVal );      }
   void setToCurrent(){ setChecked( *m_pVar );           }
   void apply()       { *m_pVar = isChecked();                              }
   void write(ValueMap* config){ config->writeEntry(m_saveName, *m_pVar );   }
   void read (ValueMap* config){ *m_pVar = config->readBoolEntry( m_saveName, *m_pVar ); }
private:
   OptionRadioButton( const OptionRadioButton& ); // private copy constructor without implementation
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};

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template<class T>
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class OptionT : public OptionItemT<T>
{
public:
   OptionT( const T& defaultVal, const QString& saveName, T* pVar, OptionDialog* pOD )
   : OptionItemT<T>( pOD, saveName )
   {
      this->m_pVar = pVar;
      *this->m_pVar = defaultVal;
   }
   OptionT( const QString& saveName, T* pVar, OptionDialog* pOD )
   : OptionItemT<T>( pOD, saveName )
   {
      this->m_pVar = pVar;
   }
   void setToDefault(){}
   void setToCurrent(){}
   void apply()       {}
   void write(ValueMap* vm){ writeEntry( vm, this->m_saveName, *this->m_pVar ); }
   void read (ValueMap* vm){ *this->m_pVar = vm->readEntry ( this->m_saveName, *this->m_pVar ); }
private:
   OptionT( const OptionT& ); // private copy constructor without implementation
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};

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template <class T> void writeEntry( ValueMap* vm, const QString& saveName, const T& v ) {
    vm->writeEntry( saveName, v );
}
static void writeEntry( ValueMap* vm, const QString& saveName, const QStringList& v )   {
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    vm->writeEntry( saveName, v);
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}
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//static void readEntry(ValueMap* vm, const QString& saveName, bool& v )       {   v = vm->readBoolEntry( saveName, v ); }
//static void readEntry(ValueMap* vm, const QString& saveName, int&  v )       {   v = vm->readNumEntry( saveName, v ); }
//static void readEntry(ValueMap* vm, const QString& saveName, QSize& v )      {   v = vm->readSizeEntry( saveName, &v ); }
//static void readEntry(ValueMap* vm, const QString& saveName, QPoint& v )     {   v = vm->readPointEntry( saveName, &v ); }
//static void readEntry(ValueMap* vm, const QString& saveName, QStringList& v ){   v = vm->readListEntry( saveName, QStringList(), '|' ); }
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typedef OptionT<bool> OptionToggleAction;
typedef OptionT<int>  OptionNum;
typedef OptionT<QPoint> OptionPoint;
typedef OptionT<QSize> OptionSize;
typedef OptionT<QStringList> OptionStringList;

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FontChooser::FontChooser( QWidget* pParent )
: QGroupBox(pParent)
{
   QVBoxLayout* pLayout = new QVBoxLayout( this );
   m_pSelectFont = new QPushButton(i18n("Select Font"), this );
   connect(m_pSelectFont, SIGNAL(clicked()), this, SLOT(slotSelectFont()));
   pLayout->addWidget(m_pSelectFont);

   m_pLabel = new QLabel( "", this );
   m_pLabel->setFont( m_font );
   m_pLabel->setMinimumWidth(200);
   QChar visualTab(0x2192);
   QChar visualSpace((ushort)0xb7);
   m_pLabel->setText( QString("The quick brown fox jumps over the river\n"
                      "but the little red hen escapes with a shiver.\n"
                      ":-)")+visualTab+visualSpace);
   pLayout->addWidget(m_pLabel);
}

QFont FontChooser::font()
{
   return m_font;//QFont("courier",10);
}

void FontChooser::setFont( const QFont& font, bool )
{
   m_font = font;
   m_pLabel->setFont( m_font );
   //update();
}

void FontChooser::slotSelectFont()
{
   bool bOk;
   m_font = QFontDialog::getFont(&bOk, m_font );
   m_pLabel->setFont( m_font );
}


class OptionFontChooser : public FontChooser, public OptionItemT<QFont>
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{
public:
   OptionFontChooser( const QFont& defaultVal, const QString& saveName, QFont* pVar, QWidget* pParent, OptionDialog* pOD ) :
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       FontChooser( pParent ),
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       OptionItemT<QFont>( pOD, saveName )
   {
      m_pVar = pVar;
      *m_pVar = defaultVal;
      m_defaultVal = defaultVal;
   }
   void setToDefault(){ setFont( m_defaultVal, false ); }
   void setToCurrent(){ setFont( *m_pVar, false ); }
   void apply()       { *m_pVar = font();}
   void write(ValueMap* config){ config->writeEntry(m_saveName, *m_pVar );   }
   void read (ValueMap* config){ *m_pVar = config->readFontEntry( m_saveName, m_pVar ); }
private:
   OptionFontChooser( const OptionToggleAction& ); // private copy constructor without implementation
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};
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class OptionColorButton : public KColorButton, public OptionItemT<QColor>
{
public:
   OptionColorButton( QColor defaultVal, const QString& saveName, QColor* pVar, QWidget* pParent, OptionDialog* pOD )
   : KColorButton( pParent ), OptionItemT<QColor>( pOD, saveName )
   {
      m_pVar = pVar;
      m_defaultVal = defaultVal;
   }
   void setToDefault(){ setColor( m_defaultVal );      }
   void setToCurrent(){ setColor( *m_pVar );           }
   void apply()       { *m_pVar = color();                              }
   void write(ValueMap* config){ config->writeEntry(m_saveName, *m_pVar );   }
   void read (ValueMap* config){ *m_pVar = config->readColorEntry( m_saveName, m_pVar ); }
private:
   OptionColorButton( const OptionColorButton& ); // private copy constructor without implementation
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};

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class OptionLineEdit : public QComboBox, public OptionItemT<QString>
{
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    public:
        OptionLineEdit( const QString& defaultVal, const QString& saveName, QString* pVar,
                        QWidget* pParent, OptionDialog* pOD )
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            : QComboBox( pParent ), OptionItemT<QString>( pOD, saveName )
        {
            setMinimumWidth(50);
            setEditable(true);
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            m_pVar = pVar;
            m_defaultVal = defaultVal;
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            m_list.push_back(defaultVal);
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            insertText();
        }
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        void setToDefault()
        {
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            setEditText( m_defaultVal );
        }
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        void setToCurrent()
        {
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            setEditText( *m_pVar );
        }
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        void apply()
        {
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            *m_pVar = currentText();
            insertText();
        }
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        void write(ValueMap* config)
        {
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            config->writeEntry( m_saveName, m_list );
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        }
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        void read(ValueMap* config)
        {
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            m_list = config->readListEntry( m_saveName, QStringList( m_defaultVal ) );
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            if( !m_list.empty() ) *m_pVar = m_list.front();
            clear();
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            insertItems(0,m_list);
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        }
    private:
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        void insertText()
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        {  // Check if the text exists. If yes remove it and push it in as first element
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            QString current = currentText();
            m_list.removeAll( current );
            m_list.push_front( current );
            clear();
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            if( m_list.size()>10 )
                m_list.erase( m_list.begin()+10, m_list.end() );
            insertItems(0,m_list);
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        }
        OptionLineEdit( const OptionLineEdit& ); // private copy constructor without implementation
        QStringList m_list;
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};

#if defined QT_NO_VALIDATOR
#error No validator
#endif
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class OptionIntEdit : public QLineEdit, public OptionItemT<int>
{
public:
   OptionIntEdit( int defaultVal, const QString& saveName, int* pVar, int rangeMin, int rangeMax,
                   QWidget* pParent, OptionDialog* pOD )
   : QLineEdit( pParent ), OptionItemT<int>( pOD, saveName )
   {
      m_pVar = pVar;
      m_defaultVal = defaultVal;
      QIntValidator* v = new QIntValidator(this);
      v->setRange( rangeMin, rangeMax );
      setValidator( v );
   }
   void setToDefault(){ QString s;  s.setNum(m_defaultVal); setText( s );  }
   void setToCurrent(){ QString s;  s.setNum(*m_pVar);      setText( s );  }
   void apply()       { const QIntValidator* v=static_cast<const QIntValidator*>(validator());
                        *m_pVar = minMaxLimiter( text().toInt(), v->bottom(), v->top());
                        setText( QString::number(*m_pVar) );  }
   void write(ValueMap* config){ config->writeEntry(m_saveName, *m_pVar );   }
   void read (ValueMap* config){ *m_pVar = config->readNumEntry( m_saveName, *m_pVar ); }
private:
   OptionIntEdit( const OptionIntEdit& ); // private copy constructor without implementation
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};

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class OptionComboBox : public QComboBox, public OptionItem
{
public:
   OptionComboBox( int defaultVal, const QString& saveName, int* pVarNum,
                   QWidget* pParent, OptionDialog* pOD )
   : QComboBox( pParent ), OptionItem( pOD, saveName )
   {
      setMinimumWidth(50);
      m_pVarNum = pVarNum;
      m_pVarStr = 0;
      m_defaultVal = defaultVal;
      setEditable(false);
   }
   OptionComboBox( int defaultVal, const QString& saveName, QString* pVarStr,
                   QWidget* pParent, OptionDialog* pOD )
   : QComboBox( pParent ), OptionItem( pOD, saveName )
   {
      m_pVarNum = 0;
      m_pVarStr = pVarStr;
      m_defaultVal = defaultVal;
      setEditable(false);
   }
   void setToDefault()
   { 
      setCurrentIndex( m_defaultVal ); 
      if (m_pVarStr!=0){ *m_pVarStr=currentText(); } 
   }
   void setToCurrent()
   { 
      if (m_pVarNum!=0) setCurrentIndex( *m_pVarNum );
      else              setText( *m_pVarStr );
   }
   void apply()
   { 
      if (m_pVarNum!=0){ *m_pVarNum = currentIndex(); }
      else             { *m_pVarStr = currentText(); }
   }
   void write(ValueMap* config)
   { 
      if (m_pVarStr!=0) config->writeEntry(m_saveName, *m_pVarStr );
      else              config->writeEntry(m_saveName, *m_pVarNum );   
   }
   void read (ValueMap* config)
   {
      if (m_pVarStr!=0)  setText( config->readEntry( m_saveName, currentText() ) );
      else               *m_pVarNum = config->readNumEntry( m_saveName, *m_pVarNum ); 
   }
   void preserve()
   {
      if (m_pVarStr!=0)  { m_preservedStrVal = *m_pVarStr; }
      else               { m_preservedNumVal = *m_pVarNum; }
   }
   void unpreserve()
   {
      if (m_pVarStr!=0)  { *m_pVarStr = m_preservedStrVal; }
      else               { *m_pVarNum = m_preservedNumVal; }
   }
private:
   OptionComboBox( const OptionIntEdit& ); // private copy constructor without implementation
   int* m_pVarNum;
   int m_preservedNumVal;
   QString* m_pVarStr;
   QString m_preservedStrVal;
   int m_defaultVal;
   
   void setText(const QString& s)
   {
      // Find the string in the combobox-list, don't change the value if nothing fits.
      for( int i=0; i<count(); ++i )
      {
         if ( itemText(i)==s )
         {
            if (m_pVarNum!=0) *m_pVarNum = i;
            if (m_pVarStr!=0) *m_pVarStr = s;
            setCurrentIndex(i);
            return;
         }
      }
   }
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};
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class OptionEncodingComboBox : public QComboBox, public OptionItem
{
   Q_OBJECT
   QVector<QTextCodec*> m_codecVec;
   QTextCodec** m_ppVarCodec;
public:
   OptionEncodingComboBox( const QString& saveName, QTextCodec** ppVarCodec,
                   QWidget* pParent, OptionDialog* pOD )
   : QComboBox( pParent ), OptionItem( pOD, saveName )
   {
      m_ppVarCodec = ppVarCodec;
      insertCodec( i18n("Unicode, 8 bit"),  QTextCodec::codecForName("UTF-8") );
      insertCodec( i18n("Unicode"), QTextCodec::codecForName("iso-10646-UCS-2") );
      insertCodec( i18n("Latin1"), QTextCodec::codecForName("iso 8859-1") );

      // First sort codec names:
      std::map<QString, QTextCodec*> names;
      QList<int> mibs = QTextCodec::availableMibs();
      foreach(int i, mibs)
      {
         QTextCodec* c = QTextCodec::codecForMib(i);
         if ( c!=0 )
            names[QString(c->name()).toUpper()]=c;
      }

      std::map<QString, QTextCodec*>::iterator it;
      for(it=names.begin();it!=names.end();++it)
      {
         insertCodec( "", it->second );
      }

      this->setToolTip( i18n(
         "Change this if non-ASCII characters are not displayed correctly."
         ));
   }
   void insertCodec( const QString& visibleCodecName, QTextCodec* c )
   {
      if (c!=0)
      {
         for( int i=0; i<m_codecVec.size(); ++i )
         {
            if ( c==m_codecVec[i] )
               return;  // don't insert any codec twice
         }
         addItem( visibleCodecName.isEmpty() ? QString(c->name()) : visibleCodecName+" ("+c->name()+")", (int)m_codecVec.size() );
         m_codecVec.push_back( c );
      }
   }
   void setToDefault()
   {
      QString defaultName = QTextCodec::codecForLocale()->name();
      for(int i=0;i<count();++i)
      {
         if (defaultName==itemText(i) &&
             m_codecVec[i]==QTextCodec::codecForLocale())
         {
            setCurrentIndex(i);
            if (m_ppVarCodec!=0){ *m_ppVarCodec=m_codecVec[i]; }
            return;
         }
      }

      setCurrentIndex( 0 );
      if (m_ppVarCodec!=0){ *m_ppVarCodec=m_codecVec[0]; }
   }
   void setToCurrent()
   {
      if (m_ppVarCodec!=0)
      {
         for( int i=0; i<m_codecVec.size(); ++i)
         {
            if ( *m_ppVarCodec==m_codecVec[i] )
            {
               setCurrentIndex( i );
               break;
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            }
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         }
      }
   }
   void apply()
   {
      if (m_ppVarCodec!=0){ *m_ppVarCodec = m_codecVec[ currentIndex() ]; }
   }
   void write(ValueMap* config)
   {
      if (m_ppVarCodec!=0) config->writeEntry(m_saveName, QString((*m_ppVarCodec)->name()) );
   }
   void read (ValueMap* config)
   {
      QString codecName = config->readEntry( m_saveName, QString(m_codecVec[ currentIndex() ]->name()) );
      for( int i=0; i<m_codecVec.size(); ++i)
      {
         if ( codecName == m_codecVec[i]->name() )
         {
            setCurrentIndex( i );
            if (m_ppVarCodec!=0) *m_ppVarCodec = m_codecVec[i];
            break;
         }
      }
   }
protected:
   void preserve()   { m_preservedVal = currentIndex(); }
   void unpreserve() { setCurrentIndex( m_preservedVal ); }
   int m_preservedVal;
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};


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OptionDialog::OptionDialog( bool bShowDirMergeSettings, QWidget *parent, char *name ) : 
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//    KPageDialog( IconList, i18n("Configure"), Help|Default|Apply|Ok|Cancel,
//                 Ok, parent, name, true /*modal*/, true )
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    KPageDialog( parent )
{
   setFaceType( List );
   setWindowTitle( i18n("Configure") );
   mButtonBox = new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Cancel|QDialogButtonBox::Help|QDialogButtonBox::RestoreDefaults|QDialogButtonBox::Apply);
   QWidget *mainWidget = new QWidget(this);
   QVBoxLayout *mainLayout = new QVBoxLayout;
   setLayout(mainLayout);
   mainLayout->addWidget(mainWidget);
   QPushButton *okButton = mButtonBox->button(QDialogButtonBox::Ok);
   okButton->setDefault(true);
   okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
   //WARNING mainLayout->addWidget(buttonBox) must be last item in layout.
   mainLayout->addWidget(mButtonBox);
   okButton->setDefault(true);
   setObjectName( name );
   setModal( true  );
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   //showButtonSeparator( true );
   //setHelp( "kdiff3/index.html", QString::null );
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   setupFontPage();
   setupColorPage();
   setupEditPage();
   setupDiffPage();
   setupMergePage();
   setupOtherOptions();
   if (bShowDirMergeSettings)
      setupDirectoryMergePage();

   setupRegionalPage();
   setupIntegrationPage();

   //setupKeysPage();

   // Initialize all values in the dialog
   resetToDefaults();
   slotApply();
   //connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
   connect(mButtonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
   connect(mButtonBox, &QDialogButtonBox::clicked, this, &OptionDialog::buttonClicked);
   connect(mButtonBox, &QDialogButtonBox::helpRequested, this, &OptionDialog::helpRequested); 
   //connect(this, &OptionDialog::applyClicked, this, &OptionDialog::slotApply);
   connect(mButtonBox, &QDialogButtonBox::accepted, this, &OptionDialog::slotOk);
   //helpClicked() is connected in KDiff3App::KDiff3App -- Really where?
   //connect(this, &OptionDialog::defaultClicked, this, &OptionDialog::slotDefault);
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}

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void OptionDialog::buttonClicked(QAbstractButton *button){
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    //for reasons beyond my comprehension QDialogButtonBox::standardButton() is non-static
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    switch(mButtonBox->standardButton(button)){
      case QDialogButtonBox::Apply:
	slotApply();
	break;
      case QDialogButtonBox::RestoreDefaults:
	slotDefault();
	break;
      default:
	break;
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    }
}

void OptionDialog::helpRequested() {
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    KHelpClient::invokeHelp( QStringLiteral( "kdiff3/index.html" ), QString());
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}

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OptionDialog::~OptionDialog( void )
{
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}

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void OptionDialog::setupOtherOptions()
{
   new OptionToggleAction( false, "AutoAdvance", &m_options.m_bAutoAdvance, this );
   new OptionToggleAction( true,  "ShowWhiteSpaceCharacters", &m_options.m_bShowWhiteSpaceCharacters, this );
   new OptionToggleAction( true,  "ShowWhiteSpace", &m_options.m_bShowWhiteSpace, this );
   new OptionToggleAction( false, "ShowLineNumbers", &m_options.m_bShowLineNumbers, this );
   new OptionToggleAction( true,  "HorizDiffWindowSplitting", &m_options.m_bHorizDiffWindowSplitting, this );
   new OptionToggleAction( false, "WordWrap", &m_options.m_bWordWrap, this );

   new OptionToggleAction( true,  "ShowIdenticalFiles", &m_options.m_bDmShowIdenticalFiles, this );

   new OptionToggleAction( true,  "Show Toolbar", &m_options.m_bShowToolBar, this );
   new OptionToggleAction( true,  "Show Statusbar", &m_options.m_bShowStatusBar, this );

/*
   TODO manage toolbar positioning
   new OptionNum( (int)KToolBar::Top, "ToolBarPos", &m_toolBarPos, this );
*/
   new OptionSize( QSize(600,400),"Geometry", &m_options.m_geometry, this );
   new OptionPoint( QPoint(0,22), "Position", &m_options.m_position, this );
   new OptionToggleAction( false, "WindowStateMaximised", &m_options.m_bMaximised, this );

   new OptionStringList( "RecentAFiles", &m_options.m_recentAFiles, this );
   new OptionStringList( "RecentBFiles", &m_options.m_recentBFiles, this );
   new OptionStringList( "RecentCFiles", &m_options.m_recentCFiles, this );
   new OptionStringList( "RecentOutputFiles", &m_options.m_recentOutputFiles, this );
   new OptionStringList( "RecentEncodings", &m_options.m_recentEncodings, this );
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}
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void OptionDialog::setupFontPage( void )
{
    QFrame* page = new QFrame();
    KPageWidgetItem *pageItem = new KPageWidgetItem( page, i18n("Font") );
    QFont defaultFont;
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    pageItem->setHeader( i18n("Editor & Diff Output Font") );
    pageItem->setIcon( QIcon::fromTheme(QStringLiteral("preferences-desktop-font")) );
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    addPage( pageItem );
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    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );
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    //requires QT 5.2 or later.
    defaultFont = QFontDatabase::systemFont(QFontDatabase::FixedFont);
    
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    OptionFontChooser* pFontChooser = new OptionFontChooser( defaultFont, "Font", &m_options.m_font, page, this );
    topLayout->addWidget( pFontChooser );
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    pFontChooser->setTitle(i18n("File view font"));
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   QGridLayout *gbox = new QGridLayout();
   topLayout->addLayout( gbox );
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   //int line=0;

   // This currently does not work (see rendering in class DiffTextWindow)
   //OptionCheckBox* pItalicDeltas = new OptionCheckBox( i18n("Italic font for deltas"), false, "ItalicForDeltas", &m_options.m_bItalicForDeltas, page, this );
   //gbox->addWidget( pItalicDeltas, line, 0, 1, 2 );
   //pItalicDeltas->setToolTip( i18n(
   //   "Selects the italic version of the font for differences.\n"
   //   "If the font doesn't support italic characters, then this does nothing.")
   //   );
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}


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void OptionDialog::setupColorPage( void )
{
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    QFrame* page = new QFrame();
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    KPageWidgetItem* pageItem = new KPageWidgetItem( page, i18n("Color") );
    pageItem->setHeader( i18n("Colors Settings") );
    pageItem->setIcon( QIcon::fromTheme(QStringLiteral("preferences-desktop-color")) );
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    addPage( pageItem );

    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );

    QGridLayout *gbox = new QGridLayout();
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    gbox->setColumnStretch(1,5);
    topLayout->addLayout(gbox);
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    QLabel* label;
    int line = 0;

    int depth = QPixmap::defaultDepth();
    bool bLowColor = depth <= 8;

    label = new QLabel( i18n( "Editor and Diff Views:" ), page );
    gbox->addWidget( label, line, 0 );
    QFont f( label->font() );
    f.setBold( true );
    label->setFont( f );
    ++line;

    OptionColorButton* pFgColor = new OptionColorButton( Qt::black, "FgColor", &m_options.m_fgColor, page, this );
    label = new QLabel( i18n( "Foreground color:" ), page );
    label->setBuddy( pFgColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pFgColor, line, 1 );
    ++line;

    OptionColorButton* pBgColor = new OptionColorButton( Qt::white, "BgColor", &m_options.m_bgColor, page, this );
    label = new QLabel( i18n( "Background color:" ), page );
    label->setBuddy( pBgColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pBgColor, line, 1 );

    ++line;

    OptionColorButton* pDiffBgColor = new OptionColorButton(
        bLowColor ? QColor( Qt::lightGray ) : qRgb( 224, 224, 224 ), "DiffBgColor", &m_options.m_diffBgColor, page, this );
    label = new QLabel( i18n( "Diff background color:" ), page );
    label->setBuddy( pDiffBgColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pDiffBgColor, line, 1 );
    ++line;

    OptionColorButton* pColorA = new OptionColorButton(
        bLowColor ? qRgb( 0, 0, 255 ) : qRgb( 0, 0, 200 )/*blue*/, "ColorA", &m_options.m_colorA, page, this );
    label = new QLabel( i18n( "Color A:" ), page );
    label->setBuddy( pColorA );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColorA, line, 1 );
    ++line;

    OptionColorButton* pColorB = new OptionColorButton(
        bLowColor ? qRgb( 0, 128, 0 ) : qRgb( 0, 150, 0 )/*green*/, "ColorB", &m_options.m_colorB, page, this );
    label = new QLabel( i18n( "Color B:" ), page );
    label->setBuddy( pColorB );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColorB, line, 1 );
    ++line;

    OptionColorButton* pColorC = new OptionColorButton(
        bLowColor ? qRgb( 128, 0, 128 ) : qRgb( 150, 0, 150 )/*magenta*/, "ColorC", &m_options.m_colorC, page, this );
    label = new QLabel( i18n( "Color C:" ), page );
    label->setBuddy( pColorC );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColorC, line, 1 );
    ++line;

    OptionColorButton* pColorForConflict = new OptionColorButton( Qt::red, "ColorForConflict", &m_options.m_colorForConflict, page, this );
    label = new QLabel( i18n( "Conflict color:" ), page );
    label->setBuddy( pColorForConflict );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColorForConflict, line, 1 );
    ++line;

    OptionColorButton* pColor = new OptionColorButton(
        bLowColor ? qRgb( 192, 192, 192 ) : qRgb( 220, 220, 100 ), "CurrentRangeBgColor", &m_options.m_currentRangeBgColor, page, this );
    label = new QLabel( i18n( "Current range background color:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    ++line;

    pColor = new OptionColorButton(
        bLowColor ? qRgb( 255, 255, 0 ) : qRgb( 255, 255, 150 ), "CurrentRangeDiffBgColor", &m_options.m_currentRangeDiffBgColor, page, this );
    label = new QLabel( i18n( "Current range diff background color:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    ++line;

    pColor = new OptionColorButton( qRgb( 0xff, 0xd0, 0x80 ), "ManualAlignmentRangeColor", &m_options.m_manualHelpRangeColor, page, this );
    label = new QLabel( i18n( "Color for manually aligned difference ranges:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    ++line;

    label = new QLabel( i18n( "Directory Comparison View:" ), page );
    gbox->addWidget( label, line, 0 );
    label->setFont( f );
    ++line;

    pColor = new OptionColorButton( qRgb( 0, 0xd0, 0 ), "NewestFileColor", &m_options.m_newestFileColor, page, this );
    label = new QLabel( i18n( "Newest file color:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    QString dirColorTip = i18n( "Changing this color will only be effective when starting the next directory comparison." );
    label->setToolTip( dirColorTip );
    ++line;

    pColor = new OptionColorButton( qRgb( 0xf0, 0, 0 ), "OldestFileColor", &m_options.m_oldestFileColor, page, this );
    label = new QLabel( i18n( "Oldest file color:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    label->setToolTip( dirColorTip );
    ++line;

    pColor = new OptionColorButton( qRgb( 0xc0, 0xc0, 0 ), "MidAgeFileColor", &m_options.m_midAgeFileColor, page, this );
    label = new QLabel( i18n( "Middle age file color:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    label->setToolTip( dirColorTip );
    ++line;

    pColor = new OptionColorButton( qRgb( 0, 0, 0 ), "MissingFileColor", &m_options.m_missingFileColor, page, this );
    label = new QLabel( i18n( "Color for missing files:" ), page );
    label->setBuddy( pColor );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pColor, line, 1 );
    label->setToolTip( dirColorTip );
    ++line;

    topLayout->addStretch( 10 );
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}


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void OptionDialog::setupEditPage( void )
{
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    QFrame* page = new QFrame();
    KPageWidgetItem* pageItem = new KPageWidgetItem( page, i18n( "Editor" ) );
    pageItem->setHeader( i18n( "Editor Behavior" ) );
    pageItem->setIcon( QIcon::fromTheme( QStringLiteral( "accessories-text-editor" ) ) );
    addPage( pageItem );

    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );

    QGridLayout *gbox = new QGridLayout();
    gbox->setColumnStretch( 1, 5 );
    topLayout->addLayout( gbox );
    QLabel* label;
    int line = 0;

    OptionCheckBox* pReplaceTabs = new OptionCheckBox( i18n( "Tab inserts spaces" ), false, "ReplaceTabs", &m_options.m_bReplaceTabs, page, this );
    gbox->addWidget( pReplaceTabs, line, 0, 1, 2 );
    pReplaceTabs->setToolTip( i18n(
                                  "On: Pressing tab generates the appropriate number of spaces.\n"
                                  "Off: A tab character will be inserted." )
                            );
    ++line;

    OptionIntEdit* pTabSize = new OptionIntEdit( 8, "TabSize", &m_options.m_tabSize, 1, 100, page, this );
    label = new QLabel( i18n( "Tab size:" ), page );
    label->setBuddy( pTabSize );
    gbox->addWidget( label, line, 0 );
    gbox->addWidget( pTabSize, line, 1 );
    ++line;

    OptionCheckBox* pAutoIndentation = new OptionCheckBox( i18n( "Auto indentation" ), true, "AutoIndentation", &m_options.m_bAutoIndentation, page, this );
    gbox->addWidget( pAutoIndentation, line, 0, 1, 2 );
    pAutoIndentation->setToolTip( i18n(
                                      "On: The indentation of the previous line is used for a new line.\n"
                                  ) );
    ++line;

    OptionCheckBox* pAutoCopySelection = new OptionCheckBox( i18n( "Auto copy selection" ), false, "AutoCopySelection", &m_options.m_bAutoCopySelection, page, this );
    gbox->addWidget( pAutoCopySelection, line, 0, 1, 2 );
    pAutoCopySelection->setToolTip( i18n(
                                        "On: Any selection is immediately written to the clipboard.\n"
                                        "Off: You must explicitely copy e.g. via Ctrl-C."
                                    ) );
    ++line;

    label = new QLabel( i18n( "Line end style:" ), page );
    gbox->addWidget( label, line, 0 );

    OptionComboBox* pLineEndStyle = new OptionComboBox( eLineEndStyleAutoDetect, "LineEndStyle", &m_options.m_lineEndStyle, page, this );
    gbox->addWidget( pLineEndStyle, line, 1 );
    pLineEndStyle->insertItem( eLineEndStyleUnix, "Unix" );
    pLineEndStyle->insertItem( eLineEndStyleDos, "Dos/Windows" );
    pLineEndStyle->insertItem( eLineEndStyleAutoDetect, "Autodetect" );

    label->setToolTip( i18n(
                           "Sets the line endings for when an edited file is saved.\n"
                           "DOS/Windows: CR+LF; UNIX: LF; with CR=0D, LF=0A" )
                     );
    ++line;

    topLayout->addStretch( 10 );
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}


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void OptionDialog::setupDiffPage( void )
{
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    QFrame* page = new QFrame();
    KPageWidgetItem* pageItem = new KPageWidgetItem( page, i18n( "Diff" ) );
    pageItem->setHeader( i18n( "Diff Settings" ) );
    pageItem->setIcon( QIcon::fromTheme( QStringLiteral( "preferences-other" ) ) );
    addPage( pageItem );


    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );

    QGridLayout *gbox = new QGridLayout();
    gbox->setColumnStretch( 1, 5 );
    topLayout->addLayout( gbox );
    int line = 0;

    QLabel* label = 0;

    m_options.m_bPreserveCarriageReturn = false;
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/*
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    OptionCheckBox* pPreserveCarriageReturn = new OptionCheckBox( i18n("Preserve carriage return"), false, "PreserveCarriageReturn", &m_options.m_bPreserveCarriageReturn, page, this );
    gbox->addWidget( pPreserveCarriageReturn, line, 0, 1, 2 );
    pPreserveCarriageReturn->setToolTip( i18n(
       "Show carriage return characters '\\r' if they exist.\n"
       "Helps to compare files that were modified under different operating systems.")
       );
    ++line;
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*/
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    QString treatAsWhiteSpace = " (" + i18n( "Treat as white space." ) + ")";

    OptionCheckBox* pIgnoreNumbers = new OptionCheckBox( i18n( "Ignore numbers" ) + treatAsWhiteSpace, false, "IgnoreNumbers", &m_options.m_bIgnoreNumbers, page, this );
    gbox->addWidget( pIgnoreNumbers, line, 0, 1, 2 );
    pIgnoreNumbers->setToolTip( i18n(
                                    "Ignore number characters during line matching phase. (Similar to Ignore white space.)\n"
                                    "Might help to compare files with numeric data." )
                              );
    ++line;

    OptionCheckBox* pIgnoreComments = new OptionCheckBox( i18n( "Ignore C/C++ comments" ) + treatAsWhiteSpace, false, "IgnoreComments", &m_options.m_bIgnoreComments, page, this );
    gbox->addWidget( pIgnoreComments, line, 0, 1, 2 );
    pIgnoreComments->setToolTip( i18n( "Treat C/C++ comments like white space." )
                               );
    ++line;

    OptionCheckBox* pIgnoreCase = new OptionCheckBox( i18n( "Ignore case" ) + treatAsWhiteSpace, false, "IgnoreCase", &m_options.m_bIgnoreCase, page, this );
    gbox->addWidget( pIgnoreCase, line, 0, 1, 2 );
    pIgnoreCase->setToolTip( i18n(
                                 "Treat case differences like white space changes. ('a'<=>'A')" )
                           );
    ++line;

    label = new QLabel( i18n( "Preprocessor command:" ), page );
    gbox->addWidget( label, line, 0 );
    OptionLineEdit* pLE = new OptionLineEdit( "", "PreProcessorCmd", &m_options.m_PreProcessorCmd, page, this );
    gbox->addWidget( pLE, line, 1 );
    label->setToolTip( i18n( "User defined pre-processing. (See the docs for details.)" ) );
    ++line;

    label = new QLabel( i18n( "Line-matching preprocessor command:" ), page );
    gbox->addWidget( label, line, 0 );
    pLE = new OptionLineEdit( "", "LineMatchingPreProcessorCmd", &m_options.m_LineMatchingPreProcessorCmd, page, this );
    gbox->addWidget( pLE, line, 1 );
    label->setToolTip( i18n( "This pre-processor is only used during line matching.\n(See the docs for details.)" ) );
    ++line;

    OptionCheckBox* pTryHard = new OptionCheckBox( i18n( "Try hard (slower)" ), true, "TryHard", &m_options.m_bTryHard, page, this );
    gbox->addWidget( pTryHard, line, 0, 1, 2 );
    pTryHard->setToolTip( i18n(
                              "Enables the --minimal option for the external diff.\n"
                              "The analysis of big files will be much slower." )
                        );
    ++line;

    OptionCheckBox* pDiff3AlignBC = new OptionCheckBox( i18n( "Align B and C for 3 input files" ), false, "Diff3AlignBC", &m_options.m_bDiff3AlignBC, page, this );
    gbox->addWidget( pDiff3AlignBC, line, 0, 1, 2 );
    pDiff3AlignBC->setToolTip( i18n(
                                   "Try to align B and C when comparing or merging three input files.\n"
                                   "Not recommended for merging because merge might get more complicated.\n"
                                   "(Default is off.)" )
                             );
    ++line;

    topLayout->addStretch( 10 );
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}

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void OptionDialog::setupMergePage( void )
{
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    QFrame* page = new QFrame();
    KPageWidgetItem* pageItem = new KPageWidgetItem( page, i18n( "Merge" ) );
    pageItem->setHeader( i18n( "Merge Settings" ) );
    pageItem->setIcon( QIcon::fromTheme( QStringLiteral( "plasmagik" ) ) );
    addPage( pageItem );

    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );
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    QGridLayout *gbox = new QGridLayout();
    gbox->setColumnStretch( 1, 5 );
    topLayout->addLayout( gbox );
    int line = 0;

    QLabel* label = 0;

    label = new QLabel( i18n( "Auto advance delay (ms):" ), page );
    gbox->addWidget( label, line, 0 );
    OptionIntEdit* pAutoAdvanceDelay = new OptionIntEdit( 500, "AutoAdvanceDelay", &m_options.m_autoAdvanceDelay, 0, 2000, page, this );
    gbox->addWidget( pAutoAdvanceDelay, line, 1 );
    label->setToolTip( i18n(
                           "When in Auto-Advance mode the result of the current selection is shown \n"
                           "for the specified time, before jumping to the next conflict. Range: 0-2000 ms" )
                     );
    ++line;

    OptionCheckBox* pShowInfoDialogs = new OptionCheckBox( i18n( "Show info dialogs" ), true, "ShowInfoDialogs", &m_options.m_bShowInfoDialogs, page, this );
    gbox->addWidget( pShowInfoDialogs, line, 0, 1, 2 );
    pShowInfoDialogs->setToolTip( i18n( "Show a dialog with information about the number of conflicts." ) );
    ++line;

    label = new QLabel( i18n( "White space 2-file merge default:" ), page );
    gbox->addWidget( label, line, 0 );
    OptionComboBox* pWhiteSpace2FileMergeDefault = new OptionComboBox( 0, "WhiteSpace2FileMergeDefault", &m_options.m_whiteSpace2FileMergeDefault, page, this );
    gbox->addWidget( pWhiteSpace2FileMergeDefault, line, 1 );
    pWhiteSpace2FileMergeDefault->insertItem( 0, i18n( "Manual Choice" ) );
    pWhiteSpace2FileMergeDefault->insertItem( 1, "A" );
    pWhiteSpace2FileMergeDefault->insertItem( 2, "B" );
    label->setToolTip( i18n(
                           "Allow the merge algorithm to automatically select an input for "
                           "white-space-only changes." )
                     );
    ++line;

    label = new QLabel( i18n( "White space 3-file merge default:" ), page );
    gbox->addWidget( label, line, 0 );
    OptionComboBox* pWhiteSpace3FileMergeDefault = new OptionComboBox( 0, "WhiteSpace3FileMergeDefault", &m_options.m_whiteSpace3FileMergeDefault, page, this );
    gbox->addWidget( pWhiteSpace3FileMergeDefault, line, 1 );
    pWhiteSpace3FileMergeDefault->insertItem( 0, i18n( "Manual Choice" ) );
    pWhiteSpace3FileMergeDefault->insertItem( 1, "A" );
    pWhiteSpace3FileMergeDefault->insertItem( 2, "B" );
    pWhiteSpace3FileMergeDefault->insertItem( 3, "C" );
    label->setToolTip( i18n(
                           "Allow the merge algorithm to automatically select an input for "
                           "white-space-only changes." )
                     );
    ++line;

    QGroupBox* pGroupBox = new QGroupBox( i18n( "Automatic Merge Regular Expression" ) );
    gbox->addWidget( pGroupBox, line, 0, 1, 2 );
    ++line;
    {
        QGridLayout* gbox = new QGridLayout( pGroupBox );
        gbox->setColumnStretch( 1, 10 );
        int line = 0;

        label = new QLabel( i18n( "Auto merge regular expression:" ), page );
        gbox->addWidget( label, line, 0 );
        m_pAutoMergeRegExpLineEdit = new OptionLineEdit( ".*\\$(Version|Header|Date|Author).*\\$.*", "AutoMergeRegExp", &m_options.m_autoMergeRegExp, page, this );
        gbox->addWidget( m_pAutoMergeRegExpLineEdit, line, 1 );
        s_autoMergeRegExpToolTip = i18n( "Regular expression for lines where KDiff3 should automatically choose one source.\n"
                                         "When a line with a conflict matches the regular expression then\n"
                                         "- if available - C, otherwise B will be chosen." );
        label->setToolTip( s_autoMergeRegExpToolTip );
        ++line;

        OptionCheckBox* pAutoMergeRegExp = new OptionCheckBox( i18n( "Run regular expression auto merge on merge start" ), false, "RunRegExpAutoMergeOnMergeStart", &m_options.m_bRunRegExpAutoMergeOnMergeStart, page, this );
        gbox->addWidget( pAutoMergeRegExp, line, 0, 1, 2 );
        pAutoMergeRegExp->setToolTip( i18n( "Run the merge for auto merge regular expressions\n"
                                            "immediately when a merge starts.\n" ) );
        ++line;
    }
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    pGroupBox = new QGroupBox( i18n( "Version Control History Merging" ) );
    gbox->addWidget( pGroupBox, line, 0, 1, 2 );
    ++line;
    {
        QGridLayout* gbox = new QGridLayout( pGroupBox );
        gbox->setColumnStretch( 1, 10 );
        int line = 0;

        label = new QLabel( i18n( "History start regular expression:" ), page );
        gbox->addWidget( label, line, 0 );
        m_pHistoryStartRegExpLineEdit = new OptionLineEdit( ".*\\$Log.*\\$.*", "HistoryStartRegExp", &m_options.m_historyStartRegExp, page, this );
        gbox->addWidget( m_pHistoryStartRegExpLineEdit, line, 1 );
        s_historyStartRegExpToolTip = i18n( "Regular expression for the start of the version control history entry.\n"
                                            "Usually this line contains the \"$Log$\" keyword.\n"
                                            "Default value: \".*\\$Log.*\\$.*\"" );
        label->setToolTip( s_historyStartRegExpToolTip );
        ++line;

        label = new QLabel( i18n( "History entry start regular expression:" ), page );
        gbox->addWidget( label, line, 0 );
        // Example line:  "** \main\rolle_fsp_dev_008\1   17 Aug 2001 10:45:44   rolle"
        QString historyEntryStartDefault =
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            "\\s*\\\\main\\\\(\\S+)\\s+"  // Start with  "\main\"
            "([0-9]+) "          // day
            "(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) " //month
            "([0-9][0-9][0-9][0-9]) " // year
            "([0-9][0-9]:[0-9][0-9]:[0-9][0-9])\\s+(.*)";  // time, name
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      m_pHistoryEntryStartRegExpLineEdit = new OptionLineEdit( historyEntryStartDefault, "HistoryEntryStartRegExp", &m_options.m_historyEntryStartRegExp, page, this );
      gbox->addWidget( m_pHistoryEntryStartRegExpLineEdit, line, 1 );
      s_historyEntryStartRegExpToolTip = i18n("A version control history entry consists of several lines.\n"
            "Specify the regular expression to detect the first line (without the leading comment).\n"
            "Use parentheses to group the keys you want to use for sorting.\n"
            "If left empty, then KDiff3 assumes that empty lines separate history entries.\n"
            "See the documentation for details.");
      label->setToolTip( s_historyEntryStartRegExpToolTip );
      ++line;
   
      m_pHistoryMergeSorting = new OptionCheckBox( i18n("History merge sorting"), false, "HistoryMergeSorting", &m_options.m_bHistoryMergeSorting, page, this );
      gbox->addWidget( m_pHistoryMergeSorting, line, 0, 1, 2 );
      m_pHistoryMergeSorting->setToolTip( i18n("Sort version control history by a key.") );
      ++line;
            //QString branch = newHistoryEntry.cap(1);
            //int day    = newHistoryEntry.cap(2).toInt();
            //int month  = QString("Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec").find(newHistoryEntry.cap(3))/4 + 1;
            //int year   = newHistoryEntry.cap(4).toInt();
            //QString time = newHistoryEntry.cap(5);
            //QString name = newHistoryEntry.cap(6);
      QString defaultSortKeyOrder = "4,3,2,5,1,6"; //QDate(year,month,day).toString(Qt::ISODate) +" "+ time + " " + branch + " " + name;

      label = new QLabel( i18n("History entry start sort key order:"), page );
      gbox->addWidget( label, line, 0 );
      m_pHistorySortKeyOrderLineEdit = new OptionLineEdit( defaultSortKeyOrder, "HistoryEntryStartSortKeyOrder", &m_options.m_historyEntryStartSortKeyOrder, page, this );
      gbox->addWidget( m_pHistorySortKeyOrderLineEdit, line, 1 );
      s_historyEntryStartSortKeyOrderToolTip = i18n("Each pair of parentheses used in the regular expression for the history start entry\n"
            "groups a key that can be used for sorting.\n"
            "Specify the list of keys (that are numbered in order of occurrence\n"
            "starting with 1) using ',' as separator (e.g. \"4,5,6,1,2,3,7\").\n"
            "If left empty, then no sorting will be done.\n"
            "See the documentation for details.");
      label->setToolTip( s_historyEntryStartSortKeyOrderToolTip );
      m_pHistorySortKeyOrderLineEdit->setEnabled(false);
      connect(m_pHistoryMergeSorting, &OptionCheckBox::toggled, m_pHistorySortKeyOrderLineEdit, &OptionLineEdit::setEnabled);
      ++line;

      m_pHistoryAutoMerge = new OptionCheckBox( i18n("Merge version control history on merge start"), false, "RunHistoryAutoMergeOnMergeStart", &m_options.m_bRunHistoryAutoMergeOnMergeStart, page, this );
      gbox->addWidget( m_pHistoryAutoMerge, line, 0, 1, 2 );
      m_pHistoryAutoMerge->setToolTip( i18n("Run version control history automerge on merge start.") );
      ++line;

      OptionIntEdit* pMaxNofHistoryEntries = new OptionIntEdit( -1, "MaxNofHistoryEntries", &m_options.m_maxNofHistoryEntries, -1, 1000, page, this );
      label = new QLabel( i18n("Max number of history entries:"), page );
      gbox->addWidget( label, line, 0 );
      gbox->addWidget( pMaxNofHistoryEntries, line, 1 );
      pMaxNofHistoryEntries->setToolTip( i18n("Cut off after specified number. Use -1 for infinite number of entries.") );
      ++line;
   }
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   QPushButton* pButton = new QPushButton( i18n("Test your regular expressions"), page );
   gbox->addWidget( pButton, line, 0 );
   connect(pButton, &QPushButton::clicked, this, &OptionDialog::slotHistoryMergeRegExpTester);
   ++line;

   label = new QLabel( i18n("Irrelevant merge command:"), page );
   gbox->addWidget( label, line, 0 );
   OptionLineEdit* pLE = new OptionLineEdit( "", "IrrelevantMergeCmd", &m_options.m_IrrelevantMergeCmd, page, this );
   gbox->addWidget( pLE, line, 1 );
   label->setToolTip( i18n("If specified this script is run after automerge\n"
         "when no other relevant changes were detected.\n"
         "Called with the parameters: filename1 filename2 filename3") );
   ++line;


   OptionCheckBox* pAutoSaveAndQuit = new OptionCheckBox( i18n("Auto save and quit on merge without conflicts"), false,
      "AutoSaveAndQuitOnMergeWithoutConflicts", &m_options.m_bAutoSaveAndQuitOnMergeWithoutConflicts, page, this );
   gbox->addWidget( pAutoSaveAndQuit, line, 0, 1, 2 );
   pAutoSaveAndQuit->setToolTip( i18n("If KDiff3 was started for a file-merge from the command line and all\n"
                                         "conflicts are solvable without user interaction then automatically save and quit.\n"
                                         "(Similar to command line option \"--auto\".)") );
   ++line;

   topLayout->addStretch(10);
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}

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void OptionDialog::setupDirectoryMergePage( void )
{
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    QFrame* page = new QFrame();
    KPageWidgetItem* pageItem = new KPageWidgetItem( page, i18n( "Directory" ) );
    pageItem->setHeader( i18n( "Directory" ) );
    pageItem->setIcon( QIcon::fromTheme( QStringLiteral( "folder" ) ) );
    addPage( pageItem );

    QVBoxLayout *topLayout = new QVBoxLayout( page );
    topLayout->setMargin( 5 );
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    QGridLayout *gbox = new QGridLayout();
    gbox->setColumnStretch( 1, 5 );
    topLayout->addLayout( gbox );
    int line = 0;

    OptionCheckBox* pRecursiveDirs = new OptionCheckBox( i18n( "Recursive directories" ), true, "RecursiveDirs", &m_options.m_bDmRecursiveDirs, page, this );
    gbox->addWidget( pRecursiveDirs, line, 0, 1, 2 );
    pRecursiveDirs->setToolTip( i18n( "Whether to analyze subdirectories or not." ) );
    ++line;
    QLabel* label = new QLabel( i18n( "File pattern(s):" ), page );
    gbox->addWidget( label, line, 0 );
    OptionLineEdit* pFilePattern = new OptionLineEdit( "*", "FilePattern", &m_options.m_DmFilePattern, page, this );
    gbox->addWidget( pFilePattern, line, 1 );
    label->setToolTip( i18n(
                           "Pattern(s) of files to be analyzed. \n"
                           "Wildcards: '*' and '?'\n"
                           "Several Patterns can be specified by using the separator: ';'"
                       ) );
    ++line;

    label = new QLabel( i18n( "File-anti-pattern(s):" ), page );
    gbox->addWidget( label, line, 0 );
    OptionLineEdit* pFileAntiPattern = new OptionLineEdit( "*.orig;*.o;*.obj;*.rej;*.bak", "FileAntiPattern", &m_options.m_DmFileAntiPattern, page, this );
    gbox->addWidget( pFileAntiPattern, line, 1 );
    label->setToolTip( i18n(
                           "Pattern(s) of files to be excluded from analysis. \n"
                           "Wildcards: '*' and '?'\n"
                           "Several Patterns can be specified by using the separator: ';'"
                       ) );
    ++line;

    label = new QLabel( i18n( "Dir-anti-pattern(s):" ), page );
    gbox->addWidget( label, line, 0 );
    OptionLineEdit* pDirAntiPattern = new OptionLineEdit( "CVS;.deps;.svn;.hg;.git", "DirAntiPattern", &m_options.m_DmDirAntiPattern, page, this );
    gbox->addWidget( pDirAntiPattern, line, 1 );
    label->setToolTip( i18n(
                           "Pattern(s) of directories to be excluded from analysis. \n"
                           "Wildcards: '*' and '?'\n"
                           "Several Patterns can be specified by using the separator: ';'"
                       ) );
    ++line;

    OptionCheckBox* pUseCvsIgnore = new OptionCheckBox( i18n( "Use .cvsignore" ), false, "UseCvsIgnore", &m_options.m_bDmUseCvsIgnore, page, this );
    gbox->addWidget( pUseCvsIgnore, line, 0, 1, 2 );
    pUseCvsIgnore->setToolTip( i18n(
                                   "Extends the antipattern to anything that would be ignored by CVS.\n"
                                   "Via local \".cvsignore\" files this can be directory specific."
                               ) );
    ++line;

    OptionCheckBox* pFindHidden = new OptionCheckBox( i18n( "Find hidden files and directories" ), true, "FindHidden", &m_options.m_bDmFindHidden, page, this );
    gbox->addWidget( pFindHidden, line, 0, 1, 2 );
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#if defined(_WIN32) || defined(Q_OS_OS2)
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   pFindHidden->setToolTip( i18n("Finds files and directories with the hidden attribute.") );
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#else
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   pFindHidden->setToolTip( i18n("Finds files and directories starting with '.'.") );
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#endif
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   ++line;

   OptionCheckBox* pFollowFileLinks = new OptionCheckBox( i18n("Follow file links"), false, "FollowFileLinks", &m_options.m_bDmFollowFileLinks, page, this );
   gbox->addWidget( pFollowFileLinks, line, 0, 1, 2 );
   pFollowFileLinks->setToolTip( i18n(
      "On: Compare the file the link points to.\n"
      "Off: Compare the links."
      ));
   ++line;

   OptionCheckBox* pFollowDirLinks = new OptionCheckBox( i18n("Follow directory links"), false, "FollowDirLinks", &m_options.m_bDmFollowDirLinks, page, this );
   gbox->addWidget( pFollowDirLinks, line, 0, 1, 2 );
   pFollowDirLinks->setToolTip(    i18n(
      "On: Compare the directory the link points to.\n"
      "Off: Compare the links."
      ));
   ++line;

   //OptionCheckBox* pShowOnlyDeltas = new OptionCheckBox( i18n("List only deltas"),false,"ListOnlyDeltas", &m_options.m_bDmShowOnlyDeltas, page, this );
   //gbox->addWidget( pShowOnlyDeltas, line, 0, 1, 2 );
   //pShowOnlyDeltas->setToolTip( i18n(
   //              "Files and directories without change will not appear in the list."));
   //++line;
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#if defined(_WIN32) || defined(Q_OS_OS2)
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   bool bCaseSensitiveFilenameComparison = false;
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#else
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   bool bCaseSensitiveFilenameComparison = true;
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#endif
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    OptionCheckBox* pCaseSensitiveFileNames = new OptionCheckBox( i18n( "Case sensitive filename comparison" ), bCaseSensitiveFilenameComparison, "CaseSensitiveFilenameComparison", &m_options.m_bDmCaseSensitiveFilenameComparison, page, this );
    gbox->addWidget( pCaseSensitiveFileNames, line, 0, 1, 2 );
    pCaseSensitiveFileNames->setToolTip( i18n(
            "The directory comparison will compare files or directories when their names match.\n"
            "Set this option if the case of the names must match. (Default for Windows is off, otherwise on.)" ) );
    ++line;

    OptionCheckBox* pUnfoldSubdirs = new OptionCheckBox( i18n( "Unfold all subdirectories on load" ), false, "UnfoldSubdirs", &m_options.m_bDmUnfoldSubdirs, page, this );
    gbox->addWidget( pUnfoldSubdirs, line, 0, 1, 2 );
    pUnfoldSubdirs->setToolTip( i18n(
                                    "On: Unfold all subdirectories when starting a directory diff.\n"
                                    "Off: Leave subdirectories folded."
                                ) );
    ++line;

    OptionCheckBox* pSkipDirStatus = new OptionCheckBox( i18n( "Skip directory status report" ), false, "SkipDirStatus", &m_options.m_bDmSkipDirStatus, page, this );
    gbox->addWidget( pSkipDirStatus, line, 0, 1, 2 );
    pSkipDirStatus->setToolTip( i18n(
                                    "On: Do not show the Directory Comparison Status.\n"
                                    "Off: Show the status dialog on start."
                                ) );
    ++line;

    QGroupBox* pBG = new QGroupBox( i18n( "File Comparison Mode" ) );
    gbox->addWidget( pBG, line, 0, 1, 2 );

    QVBoxLayout* pBGLayout = new QVBoxLayout( pBG );
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    OptionRadioButton* pBinaryComparison = new OptionRadioButton( i18n( "Binary comparison" ), true, "BinaryComparison", &m_options.m_bDmBinaryComparison, pBG, this );
    pBinaryComparison->setToolTip( i18n( "Binary comparison of each file. (Default)" ) );
    pBGLayout->addWidget( pBinaryComparison );

    OptionRadioButton* pFullAnalysis = new OptionRadioButton( i18n( "Full analysis" ), false, "FullAnalysis", &m_options.m_bDmFullAnalysis, pBG, this );
    pFullAnalysis->setToolTip( i18n( "Do a full analysis and show statistics information in extra columns.\n"
                                     "(Slower than a binary comparison, much slower for binary files.)" ) );
    pBGLayout->addWidget( pFullAnalysis );

    OptionRadioButton* pTrustDate = new OptionRadioButton( i18n( "Trust the size and modification date (unsafe)" ), false, "TrustDate", &m_options.m_bDmTrustDate, pBG, this );
    pTrustDate->setToolTip( i18n( "Assume that files are equal if the modification date and file length are equal.\n"
                                  "Files with equal contents but different modification dates will appear as different.\n"
                                  "Useful for big directories or slow networks." ) );
    pBGLayout->addWidget( pTrustDate );

    OptionRadioButton* pTrustDateFallbackToBinary = new OptionRadioButton( i18n( "Trust the size and date, but use binary comparison if date does not match (unsafe)" ), false, "TrustDateFallbackToBinary", &m_options.m_bDmTrustDateFallbackToBinary, pBG, this );
    pTrustDateFallbackToBinary->setToolTip( i18n( "Assume that files are equal if the modification date and file length are equal.\n"
                                            "If the dates are not equal but the sizes are, use binary comparison.\n"
                                            "Useful for big directories or slow networks." ) );
    pBGLayout->addWidget( pTrustDateFallbackToBinary );

    OptionRadioButton* pTrustSize = new OptionRadioButton( i18n( "Trust the size (unsafe)" ), false, "TrustSize", &m_options.m_bDmTrustSize, pBG, this );
    pTrustSize->setToolTip( i18n( "Assume that files are equal if their file lengths are equal.\n"
                                  "Useful for big directories or slow networks when the date is modified during download." ) );
    pBGLayout->addWidget( pTrustSize );

    ++line;


    // Some two Dir-options: Affects only the default actions.
    OptionCheckBox* pSyncMode = new OptionCheckBox( i18n( "Synchronize directories" ), false, "SyncMode", &m_options.m_bDmSyncMode, page, this );
    gbox->addWidget( pSyncMode, line, 0, 1, 2 );
    pSyncMode->setToolTip( i18n(
                               "Offers to store files in both directories so that\n"
                               "both directories are the same afterwards.\n"
                               "Works only when comparing two directories without specifying a destination." ) );
    ++line;

    // Allow white-space only differences to be considered equal
    OptionCheckBox* pWhiteSpaceDiffsEqual = new OptionCheckBox( i18n( "White space differences considered equal" ), true, "WhiteSpaceEqual", &m_options.m_bDmWhiteSpaceEqual, page, this );
    gbox->addWidget( pWhiteSpaceDiffsEqual, line, 0, 1, 2 );
    pWhiteSpaceDiffsEqual->setToolTip( i18n(
                                           "If files differ only by white space consider them equal.\n"
                                           "This is only active when full analysis is chosen." ) );
    connect( pFullAnalysis, &OptionRadioButton::toggled, pWhiteSpaceDiffsEqual, &OptionCheckBox::setEnabled );
    pWhiteSpaceDiffsEqual->setEnabled( false );
    ++line;

    OptionCheckBox* pCopyNewer = new OptionCheckBox( i18n( "Copy newer instead of merging (unsafe)" ), false, "CopyNewer", &m_options.m_bDmCopyNewer, page, this );
    gbox->addWidget( pCopyNewer, line, 0, 1, 2 );
    pCopyNewer->setToolTip( i18n(
                                "Don't look inside, just take the newer file.\n"
                                "(Use this only if you know what you are doing!)\n"
                                "Only effective when comparing two directories." ) );
    ++line;

    OptionCheckBox* pCreateBakFiles = new OptionCheckBox( i18n( "Backup files (.orig)" ), true, "CreateBakFiles", &m_options.m_bDmCreateBakFiles, page, this );
    gbox->addWidget( pCreateBakFiles, line, 0, 1, 2 );
    pCreateBakFiles->setToolTip( i18n(
                                     "If a file would be saved over an old file, then the old file\n"
                                     "will be renamed with a '.orig' extension instead of being deleted." ) );
    ++line;

    topLayout->addStretch( 10 );
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}
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/*
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static void insertCodecs(OptionComboBox* p)
{
   std::multimap<QString,QString> m;  // Using the multimap for case-insensitive sorting.
   int i;
   for(i=0;;++i)
   {
      QTextCodec* pCodec = QTextCodec::codecForIndex ( i );
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      if ( pCodec != 0 )  m.insert( std::make_pair( QString(pCodec->mimeName()).toUpper(), pCodec->mimeName()) );
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      else                break;
   }
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   p->insertItem( i18n("Auto"), 0 );
   std::multimap<QString,QString>::iterator mi;
   for(mi=m.begin(), i=0; mi!=m.end(); ++mi, ++i)
      p->insertItem(mi->second, i+1);
}
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*/
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// UTF8-Codec that saves a BOM
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// UTF8-Codec that saves a BOM
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