path: root/src/kdiff3.cpp

/***************************************************************************
                          kdiff3.cpp  -  description
                             -------------------
    begin                : Don Jul 11 12:31:29 CEST 2002
    copyright            : (C) 2002-2007 by Joachim Eibl
    email                : joachim.eibl at gmx.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "difftextwindow.h"
#include "mergeresultwindow.h"

#include <iostream>

// include files for QT
#include <qdir.h>
#include <qprinter.h>
#include <qpainter.h>
#include <qsplitter.h>
#include <qlineedit.h>
#include <qcheckbox.h>
#include <qpushbutton.h>
#include <qpopupmenu.h>
#include <qlabel.h>
#include <qtextedit.h>
#include <qlayout.h>
#include <qpaintdevicemetrics.h>

// include files for KDE
#include <kiconloader.h>
#include <kmessagebox.h>
#include <kfiledialog.h>
#include <kmenubar.h>
#include <kstatusbar.h>
#include <klocale.h>
#include <kconfig.h>
#include <kstdaction.h>
#include <kcmdlineargs.h>
#include <kprinter.h>
//#include <kkeydialog.h>

// application specific includes
#include "kdiff3.h"
#include "optiondialog.h"
#include "fileaccess.h"
#include "kdiff3_part.h"
#include "directorymergewindow.h"
#include "smalldialogs.h"

#define ID_STATUS_MSG 1

KActionCollection* KDiff3App::actionCollection()
{
   if ( m_pKDiff3Shell==0 )
      return m_pKDiff3Part->actionCollection();
   else
      return m_pKDiff3Shell->actionCollection();
}

KStatusBar* KDiff3App::statusBar()
{
   if ( m_pKDiff3Shell==0 )
      return 0;
   else
      return m_pKDiff3Shell->statusBar();
}

KToolBar* KDiff3App::toolBar(const char* toolBarId )
{
   if ( m_pKDiff3Shell==0 )
      return 0;
   else
      return m_pKDiff3Shell->toolBar( toolBarId );
}

bool KDiff3App::isPart()
{
   return m_pKDiff3Shell==0;
}

bool KDiff3App::isFileSaved()
{
   return m_bFileSaved;
}

KDiff3App::KDiff3App(QWidget* pParent, const char* name, KDiff3Part* pKDiff3Part )
   :QSplitter(pParent, name)  //previously KMainWindow
{
   m_pKDiff3Part = pKDiff3Part;
   m_pKDiff3Shell = dynamic_cast<KParts::MainWindow*>(pParent);

   setCaption( "KDiff3" );

   m_pMainSplitter = 0;
   m_pDirectoryMergeWindow = 0;
   m_pCornerWidget = 0;
   m_pMainWidget = 0;
   m_pDiffTextWindow1 = 0;
   m_pDiffTextWindow2 = 0;
   m_pDiffTextWindow3 = 0;
   m_pDiffTextWindowFrame1 = 0;
   m_pDiffTextWindowFrame2 = 0;
   m_pDiffTextWindowFrame3 = 0;
   m_pDiffWindowSplitter = 0;
   m_pOverview        = 0;
   m_bTripleDiff = false;
   m_pMergeResultWindow = 0;
   m_pMergeWindowFrame = 0;
   m_bOutputModified = false;
   m_bFileSaved = false;
   m_bTimerBlock = false;
   m_pHScrollBar = 0;

   // Needed before any file operations via FileAccess happen.
   if (!g_pProgressDialog)
   {
      g_pProgressDialog = new ProgressDialog(0);
      g_pProgressDialog->setStayHidden( true );
   }

   // All default values must be set before calling readOptions().
   m_pOptionDialog = new OptionDialog( m_pKDiff3Shell!=0, this );
   connect( m_pOptionDialog, SIGNAL(applyClicked()), this, SLOT(slotRefresh()) );

   m_pOptionDialog->readOptions( isPart() ? m_pKDiff3Part->instance()->config() : kapp->config() );

   // Option handling: Only when pParent==0 (no parent)
   KCmdLineArgs *args = isPart() ? 0 : KCmdLineArgs::parsedArgs();

   if (args)
   {
      QString s;
      QString title;
      if ( args->isSet("confighelp") )
      {
         s = m_pOptionDialog->calcOptionHelp();
         title = i18n("Current Configuration:");
      }
      else
      {
         s = m_pOptionDialog->parseOptions( args->getOptionList("cs") );
         title = i18n("Config Option Error:");
      }
      if (!s.isEmpty())
      {
#ifdef _WIN32 
         // A windows program has no console
         //KMessageBox::information(0, s,i18n("KDiff3-Usage"));
         QDialog* pDialog = new QDialog(this,"",true,Qt::WDestructiveClose);
         pDialog->setCaption(title);
         QVBoxLayout* pVBoxLayout = new QVBoxLayout( pDialog );
         QTextEdit* pTextEdit = new QTextEdit(pDialog);
         pTextEdit->setText(s);
         pTextEdit->setReadOnly(true);
         pTextEdit->setWordWrap(QTextEdit::NoWrap);
         pVBoxLayout->addWidget(pTextEdit);
         pDialog->resize(600,400);
         pDialog->exec();
#else
         std::cerr << title.latin1() << std::endl;
         std::cerr << s.latin1() << std::endl;
#endif
         exit(1);
      }
   }

   m_sd1.setOptionDialog(m_pOptionDialog);
   m_sd2.setOptionDialog(m_pOptionDialog);
   m_sd3.setOptionDialog(m_pOptionDialog);

   if (args!=0)
   {
      m_outputFilename = args->getOption("output");
      if ( m_outputFilename.isEmpty() )
         m_outputFilename = args->getOption("out");
   }

   m_bAutoFlag = args!=0  && args->isSet("auto");
   m_bAutoMode = m_bAutoFlag || m_pOptionDialog->m_bAutoSaveAndQuitOnMergeWithoutConflicts;
   if ( m_bAutoMode && m_outputFilename.isEmpty() )
   {
      if ( m_bAutoFlag )
      {
      //KMessageBox::information(this, i18n("Option --auto used, but no output file specified."));
         std::cerr << i18n("Option --auto used, but no output file specified.").ascii()<<std::endl;
      }
      m_bAutoMode = false;
   }
   g_pProgressDialog->setStayHidden( m_bAutoMode );

   if ( m_outputFilename.isEmpty() && args!=0 && args->isSet("merge") )
   {
      m_outputFilename = "unnamed.txt";
      m_bDefaultFilename = true;
   }
   else
      m_bDefaultFilename = false;

   g_bAutoSolve = args!=0 && !args->isSet("qall");  // Note that this is effective only once.

   if ( args!=0 )
   {
      m_sd1.setFilename( args->getOption("base") );
      if ( m_sd1.isEmpty() )
      {
         if ( args->count() > 0 ) m_sd1.setFilename( args->url(0).url() ); // args->arg(0)
         if ( args->count() > 1 ) m_sd2.setFilename( args->url(1).url() );
         if ( args->count() > 2 ) m_sd3.setFilename( args->url(2).url() );
      }
      else
      {
         if ( args->count() > 0 ) m_sd2.setFilename( args->url(0).url() );
         if ( args->count() > 1 ) m_sd3.setFilename( args->url(1).url() );
      }


      QCStringList aliasList = args->getOptionList("fname");
      QCStringList::Iterator ali = aliasList.begin();

      QString an1 = args->getOption("L1");
      if ( !an1.isEmpty() )              { m_sd1.setAliasName(an1);         }
      else if ( ali != aliasList.end() ) { m_sd1.setAliasName(*ali); ++ali; }

      QString an2 = args->getOption("L2");
      if ( !an2.isEmpty() )              { m_sd2.setAliasName(an2);         }
      else if ( ali != aliasList.end() ) { m_sd2.setAliasName(*ali); ++ali; }

      QString an3 = args->getOption("L3");
      if ( !an3.isEmpty() )              { m_sd3.setAliasName(an3);         }
      else if ( ali != aliasList.end() ) { m_sd3.setAliasName(*ali); ++ali; }
   }
   ///////////////////////////////////////////////////////////////////
   // call inits to invoke all other construction parts
   initActions(actionCollection());
   initStatusBar();

   m_pFindDialog = new FindDialog( this );
   connect( m_pFindDialog, SIGNAL(findNext()), this, SLOT(slotEditFindNext()));

   autoAdvance->setChecked( m_pOptionDialog->m_bAutoAdvance );
   showWhiteSpaceCharacters->setChecked( m_pOptionDialog->m_bShowWhiteSpaceCharacters );
   showWhiteSpace->setChecked( m_pOptionDialog->m_bShowWhiteSpace );
   showWhiteSpaceCharacters->setEnabled( m_pOptionDialog->m_bShowWhiteSpace );
   showLineNumbers->setChecked( m_pOptionDialog->m_bShowLineNumbers );
   wordWrap->setChecked( m_pOptionDialog->m_bWordWrap );
   if ( ! isPart() )
   {
      viewToolBar->setChecked( m_pOptionDialog->m_bShowToolBar );
      viewStatusBar->setChecked( m_pOptionDialog->m_bShowStatusBar );
      slotViewToolBar();
      slotViewStatusBar();
      if( toolBar("mainToolBar")!=0 )
         toolBar("mainToolBar")->setBarPos( (KToolBar::BarPosition) m_pOptionDialog->m_toolBarPos );
/*      QSize size = m_pOptionDialog->m_geometry;
      QPoint pos = m_pOptionDialog->m_position;
      if(!size.isEmpty())
      {
         m_pKDiff3Shell->resize( size );
         QRect visibleRect = QRect( pos, size ) & QApplication::desktop()->rect();
         if ( visibleRect.width()>100 && visibleRect.height()>100 )
            m_pKDiff3Shell->move( pos );
      }*/
   }
   slotRefresh();

   m_pMainSplitter = this; //new QSplitter(this);
   m_pMainSplitter->setOrientation( Vertical );
//   setCentralWidget( m_pMainSplitter );
   m_pDirectoryMergeSplitter = new QSplitter( m_pMainSplitter );
   m_pDirectoryMergeSplitter->setOrientation( Horizontal );
   m_pDirectoryMergeWindow = new DirectoryMergeWindow( m_pDirectoryMergeSplitter, m_pOptionDialog,
      KApplication::kApplication()->iconLoader() );
   m_pDirectoryMergeInfo = new DirectoryMergeInfo( m_pDirectoryMergeSplitter );
   m_pDirectoryMergeWindow->setDirectoryMergeInfo( m_pDirectoryMergeInfo );
   connect( m_pDirectoryMergeWindow, SIGNAL(startDiffMerge(QString,QString,QString,QString,QString,QString,QString,TotalDiffStatus*)),
            this, SLOT( slotFileOpen2(QString,QString,QString,QString,QString,QString,QString,TotalDiffStatus*)));
   connect( m_pDirectoryMergeWindow, SIGNAL(selectionChanged()), this, SLOT(slotUpdateAvailabilities()));
   connect( m_pDirectoryMergeWindow, SIGNAL(currentChanged(QListViewItem*)), this, SLOT(slotUpdateAvailabilities()));
   connect( m_pDirectoryMergeWindow, SIGNAL(checkIfCanContinue(bool*)), this, SLOT(slotCheckIfCanContinue(bool*)));
   connect( m_pDirectoryMergeWindow, SIGNAL(updateAvailabilities()), this, SLOT(slotUpdateAvailabilities()));
   connect( m_pDirectoryMergeWindow, SIGNAL(statusBarMessage(const QString&)), this, SLOT(slotStatusMsg(const QString&)));

   m_pDirectoryMergeWindow->initDirectoryMergeActions( this, actionCollection() );

   if ( args!=0 )  args->clear(); // Free up some memory.

   if (m_pKDiff3Shell==0)
   {
      completeInit();
   }
}


void KDiff3App::completeInit( const QString& fn1, const QString& fn2, const QString& fn3 )
{
   if (m_pKDiff3Shell!=0)
   {
      QSize size=m_pOptionDialog->m_geometry;
      QPoint pos=m_pOptionDialog->m_position;
      if(!size.isEmpty())
      {
         m_pKDiff3Shell->resize( size );
         QRect visibleRect = QRect( pos, size ) & QApplication::desktop()->rect();
         if ( visibleRect.width()>100 && visibleRect.height()>100 )
            m_pKDiff3Shell->move( pos );
         if (!m_bAutoMode)
         {
            if ( m_pOptionDialog->m_bMaximised )
               m_pKDiff3Shell->showMaximized();
            else
               m_pKDiff3Shell->show();
         }
      }
   }
   if ( ! fn1.isEmpty() )  { m_sd1.setFilename(fn1); }
   if ( ! fn2.isEmpty() )  { m_sd2.setFilename(fn2); }
   if ( ! fn3.isEmpty() )  { m_sd3.setFilename(fn3); }

   bool bSuccess = improveFilenames(false);

   if ( m_bAutoFlag && m_bAutoMode && m_bDirCompare )
   {
      std::cerr << i18n("Option --auto ignored for directory comparison.").ascii()<<std::endl;
      m_bAutoMode = false;
   }
   if (!m_bDirCompare)
   {
      m_pDirectoryMergeSplitter->hide();

      init( m_bAutoMode );
      if ( m_bAutoMode )
      {
         SourceData* pSD=0;
         if ( m_sd3.isEmpty() )
         {
            if ( m_totalDiffStatus.bBinaryAEqB ){ pSD = &m_sd1; }
         }
         else
         {
            if      ( m_totalDiffStatus.bBinaryBEqC ){ pSD = &m_sd3; } // B==C (assume A is old)
            else if ( m_totalDiffStatus.bBinaryAEqB ){ pSD = &m_sd3; } // assuming C has changed
            else if ( m_totalDiffStatus.bBinaryAEqC ){ pSD = &m_sd2; } // assuming B has changed
         }

         if ( pSD!=0 )
         {
            // Save this file directly, not via the merge result window.
            bool bSuccess = false;
            FileAccess fa( m_outputFilename );
            if ( m_pOptionDialog->m_bDmCreateBakFiles && fa.exists() )
            {
               QString newName = m_outputFilename + ".orig";
               if ( FileAccess::exists( newName ) ) FileAccess::removeFile( newName );
               if ( !FileAccess::exists( newName ) ) fa.rename( newName );
            }

            bSuccess = pSD->saveNormalDataAs( m_outputFilename );
            if ( bSuccess ) ::exit(0);
            else KMessageBox::error( this, i18n("Saving failed.") );
         }
         else if ( m_pMergeResultWindow->getNrOfUnsolvedConflicts() == 0 )
         {
            bool bSuccess = m_pMergeResultWindow->saveDocument( m_pMergeResultWindowTitle->getFileName(), m_pMergeResultWindowTitle->getEncoding() );
            if ( bSuccess ) ::exit(0);
         }
      }
   }
   m_bAutoMode = false;

   if (m_pKDiff3Shell)
   {
      if ( m_pOptionDialog->m_bMaximised )
         m_pKDiff3Shell->showMaximized();
      else
         m_pKDiff3Shell->show();
   }

   g_pProgressDialog->setStayHidden( false );

   if (statusBar() !=0 )
      statusBar()->setSizeGripEnabled(true);

   slotClipboardChanged(); // For initialisation.

   slotUpdateAvailabilities();

   if ( ! m_bDirCompare  &&  m_pKDiff3Shell!=0 )
   {
      bool bFileOpenError = false;
      if ( ! m_sd1.isEmpty() && !m_sd1.hasData()  ||
           ! m_sd2.isEmpty() && !m_sd2.hasData()  ||
           ! m_sd3.isEmpty() && !m_sd3.hasData() )
      {
         QString text( i18n("Opening of these files failed:") );
         text += "\n\n";
         if ( ! m_sd1.isEmpty() && !m_sd1.hasData() )
            text += " - " + m_sd1.getAliasName() + "\n";
         if ( ! m_sd2.isEmpty() && !m_sd2.hasData() )
            text += " - " + m_sd2.getAliasName() + "\n";
         if ( ! m_sd3.isEmpty() && !m_sd3.hasData() )
            text += " - " + m_sd3.getAliasName() + "\n";

         KMessageBox::sorry( this, text, i18n("File Open Error") );
         bFileOpenError = true;
      }

      if ( m_sd1.isEmpty() || m_sd2.isEmpty() || bFileOpenError )
         slotFileOpen();
   }
   else if ( !bSuccess )  // Directory open failed
   {
      slotFileOpen();
   }
}

KDiff3App::~KDiff3App()
{

}

void KDiff3App::initActions( KActionCollection* ac )
{
   if (ac==0)   KMessageBox::error(0, "actionCollection==0");

   fileOpen = KStdAction::open(this, SLOT(slotFileOpen()), ac);
   fileOpen->setStatusText(i18n("Opens documents for comparison..."));

   fileReload  = new KAction(i18n("Reload"), /*QIconSet(QPixmap(reloadIcon)),*/ Key_F5, this, SLOT(slotReload()), ac, "file_reload");
   
   fileSave = KStdAction::save(this, SLOT(slotFileSave()), ac);
   fileSave->setStatusText(i18n("Saves the merge result. All conflicts must be solved!"));
   fileSaveAs = KStdAction::saveAs(this, SLOT(slotFileSaveAs()), ac);
   fileSaveAs->setStatusText(i18n("Saves the current document as..."));
   filePrint = KStdAction::print(this, SLOT(slotFilePrint()), ac);
   filePrint->setStatusText(i18n("Print the differences"));
   fileQuit = KStdAction::quit(this, SLOT(slotFileQuit()), ac);
   fileQuit->setStatusText(i18n("Quits the application"));
   editCut = KStdAction::cut(this, SLOT(slotEditCut()), ac);
   editCut->setStatusText(i18n("Cuts the selected section and puts it to the clipboard"));
   editCopy = KStdAction::copy(this, SLOT(slotEditCopy()), ac);
   editCopy->setStatusText(i18n("Copies the selected section to the clipboard"));
   editPaste = KStdAction::paste(this, SLOT(slotEditPaste()), ac);
   editPaste->setStatusText(i18n("Pastes the clipboard contents to actual position"));
   editSelectAll = KStdAction::selectAll(this, SLOT(slotEditSelectAll()), ac);
   editSelectAll->setStatusText(i18n("Select everything in current window"));
   editFind = KStdAction::find(this, SLOT(slotEditFind()), ac);
   editFind->setStatusText(i18n("Search for a string"));
   editFindNext = KStdAction::findNext(this, SLOT(slotEditFindNext()), ac);
   editFindNext->setStatusText(i18n("Search again for the string"));
   viewToolBar = KStdAction::showToolbar(this, SLOT(slotViewToolBar()), ac);
   viewToolBar->setStatusText(i18n("Enables/disables the toolbar"));
   viewStatusBar = KStdAction::showStatusbar(this, SLOT(slotViewStatusBar()), ac);
   viewStatusBar->setStatusText(i18n("Enables/disables the statusbar"));
   KStdAction::keyBindings(this, SLOT(slotConfigureKeys()), ac);
   KAction* pAction = KStdAction::preferences(this, SLOT(slotConfigure()), ac );
   if ( isPart() )
      pAction->setText(i18n("Configure KDiff3..."));


#include "xpm/downend.xpm"
#include "xpm/currentpos.xpm"
#include "xpm/down1arrow.xpm"
#include "xpm/down2arrow.xpm"
#include "xpm/upend.xpm"
#include "xpm/up1arrow.xpm"
#include "xpm/up2arrow.xpm"
#include "xpm/prevunsolved.xpm"
#include "xpm/nextunsolved.xpm"
#include "xpm/iconA.xpm"
#include "xpm/iconB.xpm"
#include "xpm/iconC.xpm"
#include "xpm/autoadvance.xpm"
#include "xpm/showwhitespace.xpm"
#include "xpm/showwhitespacechars.xpm"
#include "xpm/showlinenumbers.xpm"
//#include "reload.xpm"

   goCurrent = new KAction(i18n("Go to Current Delta"), QIconSet(QPixmap(currentpos)), CTRL+Key_Space, this, SLOT(slotGoCurrent()), ac, "go_current");
   goTop = new KAction(i18n("Go to First Delta"), QIconSet(QPixmap(upend)), 0, this, SLOT(slotGoTop()), ac, "go_top");
   goBottom = new KAction(i18n("Go to Last Delta"), QIconSet(QPixmap(downend)), 0, this, SLOT(slotGoBottom()), ac, "go_bottom");
   QString omitsWhitespace = ".\n" + i18n("(Skips white space differences when \"Show White Space\" is disabled.)");
   QString includeWhitespace = ".\n" + i18n("(Does not skip white space differences even when \"Show White Space\" is disabled.)");
   goPrevDelta = new KAction(i18n("Go to Previous Delta"), QIconSet(QPixmap(up1arrow)), CTRL+Key_Up, this, SLOT(slotGoPrevDelta()), ac, "go_prev_delta");
   goPrevDelta->setToolTip( goPrevDelta->text() + omitsWhitespace );
   goNextDelta = new KAction(i18n("Go to Next Delta"), QIconSet(QPixmap(down1arrow)), CTRL+Key_Down, this, SLOT(slotGoNextDelta()), ac, "go_next_delta");
   goNextDelta->setToolTip( goNextDelta->text() + omitsWhitespace );
   goPrevConflict = new KAction(i18n("Go to Previous Conflict"), QIconSet(QPixmap(up2arrow)), CTRL+Key_PageUp, this, SLOT(slotGoPrevConflict()), ac, "go_prev_conflict");
   goPrevConflict->setToolTip( goPrevConflict->text() + omitsWhitespace );
   goNextConflict = new KAction(i18n("Go to Next Conflict"), QIconSet(QPixmap(down2arrow)), CTRL+Key_PageDown, this, SLOT(slotGoNextConflict()), ac, "go_next_conflict");
   goNextConflict->setToolTip( goNextConflict->text() + omitsWhitespace );
   goPrevUnsolvedConflict = new KAction(i18n("Go to Previous Unsolved Conflict"), QIconSet(QPixmap(prevunsolved)), 0, this, SLOT(slotGoPrevUnsolvedConflict()), ac, "go_prev_unsolved_conflict");
   goPrevUnsolvedConflict->setToolTip( goPrevUnsolvedConflict->text() + includeWhitespace );
   goNextUnsolvedConflict = new KAction(i18n("Go to Next Unsolved Conflict"), QIconSet(QPixmap(nextunsolved)), 0, this, SLOT(slotGoNextUnsolvedConflict()), ac, "go_next_unsolved_conflict");
   goNextUnsolvedConflict->setToolTip( goNextUnsolvedConflict->text() + includeWhitespace );
   chooseA = new KToggleAction(i18n("Select Line(s) From A"), QIconSet(QPixmap(iconA)), CTRL+Key_1, this, SLOT(slotChooseA()), ac, "merge_choose_a");
   chooseB = new KToggleAction(i18n("Select Line(s) From B"), QIconSet(QPixmap(iconB)), CTRL+Key_2, this, SLOT(slotChooseB()), ac, "merge_choose_b");
   chooseC = new KToggleAction(i18n("Select Line(s) From C"), QIconSet(QPixmap(iconC)), CTRL+Key_3, this, SLOT(slotChooseC()), ac, "merge_choose_c");
   autoAdvance = new KToggleAction(i18n("Automatically Go to Next Unsolved Conflict After Source Selection"), QIconSet(QPixmap(autoadvance)), 0, this, SLOT(slotAutoAdvanceToggled()), ac, "merge_autoadvance");

   showWhiteSpaceCharacters = new KToggleAction(i18n("Show Space && Tabulator Characters for Differences"), QIconSet(QPixmap(showwhitespacechars)), 0, this, SLOT(slotShowWhiteSpaceToggled()), ac, "diff_show_whitespace_characters");
   showWhiteSpace = new KToggleAction(i18n("Show White Space"), QIconSet(QPixmap(showwhitespace)), 0, this, SLOT(slotShowWhiteSpaceToggled()), ac, "diff_show_whitespace");

   showLineNumbers = new KToggleAction(i18n("Show Line Numbers"), QIconSet(QPixmap(showlinenumbers)), 0, this, SLOT(slotShowLineNumbersToggled()), ac, "diff_showlinenumbers");
   chooseAEverywhere = new KAction(i18n("Choose A Everywhere"), CTRL+SHIFT+Key_1, this, SLOT(slotChooseAEverywhere()), ac, "merge_choose_a_everywhere");
   chooseBEverywhere = new KAction(i18n("Choose B Everywhere"), CTRL+SHIFT+Key_2, this, SLOT(slotChooseBEverywhere()), ac, "merge_choose_b_everywhere");
   chooseCEverywhere = new KAction(i18n("Choose C Everywhere"), CTRL+SHIFT+Key_3, this, SLOT(slotChooseCEverywhere()), ac, "merge_choose_c_everywhere");
   chooseAForUnsolvedConflicts = new KAction(i18n("Choose A for All Unsolved Conflicts"), 0, this, SLOT(slotChooseAForUnsolvedConflicts()), ac, "merge_choose_a_for_unsolved_conflicts");
   chooseBForUnsolvedConflicts = new KAction(i18n("Choose B for All Unsolved Conflicts"), 0, this, SLOT(slotChooseBForUnsolvedConflicts()), ac, "merge_choose_b_for_unsolved_conflicts");
   chooseCForUnsolvedConflicts = new KAction(i18n("Choose C for All Unsolved Conflicts"), 0, this, SLOT(slotChooseCForUnsolvedConflicts()), ac, "merge_choose_c_for_unsolved_conflicts");
   chooseAForUnsolvedWhiteSpaceConflicts = new KAction(i18n("Choose A for All Unsolved Whitespace Conflicts"), 0, this, SLOT(slotChooseAForUnsolvedWhiteSpaceConflicts()), ac, "merge_choose_a_for_unsolved_whitespace_conflicts");
   chooseBForUnsolvedWhiteSpaceConflicts = new KAction(i18n("Choose B for All Unsolved Whitespace Conflicts"), 0, this, SLOT(slotChooseBForUnsolvedWhiteSpaceConflicts()), ac, "merge_choose_b_for_unsolved_whitespace_conflicts");
   chooseCForUnsolvedWhiteSpaceConflicts = new KAction(i18n("Choose C for All Unsolved Whitespace Conflicts"), 0, this, SLOT(slotChooseCForUnsolvedWhiteSpaceConflicts()), ac, "merge_choose_c_for_unsolved_whitespace_conflicts");
   autoSolve    = new KAction(i18n("Automatically Solve Simple Conflicts"),  0, this, SLOT(slotAutoSolve()),    ac, "merge_autosolve");
   unsolve      = new KAction(i18n("Set Deltas to Conflicts"),               0, this, SLOT(slotUnsolve()),      ac, "merge_autounsolve");
   mergeRegExp  = new KAction(i18n("Run Regular Expression Auto Merge"),     0, this, SLOT(slotRegExpAutoMerge()),ac, "merge_regexp_automerge" );
   mergeHistory = new KAction(i18n("Automatically Solve History Conflicts"), 0, this, SLOT(slotMergeHistory()), ac, "merge_versioncontrol_history" );
   splitDiff    = new KAction(i18n("Split Diff At Selection"),               0, this, SLOT(slotSplitDiff()),    ac, "merge_splitdiff");
   joinDiffs    = new KAction(i18n("Join Selected Diffs"),                   0, this, SLOT(slotJoinDiffs()),    ac, "merge_joindiffs");

   showWindowA = new KToggleAction(i18n("Show Window A"), 0, this, SLOT(slotShowWindowAToggled()), ac, "win_show_a");
   showWindowB = new KToggleAction(i18n("Show Window B"), 0, this, SLOT(slotShowWindowBToggled()), ac, "win_show_b");
   showWindowC = new KToggleAction(i18n("Show Window C"), 0, this, SLOT(slotShowWindowCToggled()), ac, "win_show_c");
   winFocusNext = new KAction(i18n("Focus Next Window"), ALT+Key_Right, this, SLOT(slotWinFocusNext()), ac, "win_focus_next");

   overviewModeNormal = new KToggleAction(i18n("Normal Overview"), 0, this, SLOT(slotOverviewNormal()), ac, "diff_overview_normal");
   overviewModeAB     = new KToggleAction(i18n("A vs. B Overview"), 0, this, SLOT(slotOverviewAB()), ac, "diff_overview_ab");
   overviewModeAC     = new KToggleAction(i18n("A vs. C Overview"), 0, this, SLOT(slotOverviewAC()), ac, "diff_overview_ac");
   overviewModeBC     = new KToggleAction(i18n("B vs. C Overview"), 0, this, SLOT(slotOverviewBC()), ac, "diff_overview_bc");
   wordWrap     = new KToggleAction(i18n("Word Wrap Diff Windows"), 0, this, SLOT(slotWordWrapToggled()), ac, "diff_wordwrap");
   addManualDiffHelp  = new KAction(i18n("Add Manual Diff Alignment"), Qt::CTRL+Qt::Key_Y, this, SLOT(slotAddManualDiffHelp()), ac, "diff_add_manual_diff_help");
   clearManualDiffHelpList  = new KAction(i18n("Clear All Manual Diff Alignments"), Qt::CTRL+Qt::SHIFT+Qt::Key_Y, this, SLOT(slotClearManualDiffHelpList()), ac, "diff_clear_manual_diff_help_list");

#ifdef _WIN32
   new KAction(i18n("Focus Next Window"), Qt::CTRL+Qt::Key_Tab, this, SLOT(slotWinFocusNext()), ac, "win_focus_next", false, false);
#endif
   winFocusPrev = new KAction(i18n("Focus Prev Window"), Qt::ALT+Qt::Key_Left, this, SLOT(slotWinFocusPrev()), ac, "win_focus_prev");
   winToggleSplitOrientation = new KAction(i18n("Toggle Split Orientation"), 0, this, SLOT(slotWinToggleSplitterOrientation()), ac, "win_toggle_split_orientation");

   dirShowBoth = new KToggleAction(i18n("Dir && Text Split Screen View"), 0, this, SLOT(slotDirShowBoth()), ac, "win_dir_show_both");
   dirShowBoth->setChecked( true );
   dirViewToggle = new KAction(i18n("Toggle Between Dir && Text View"), 0, this, SLOT(slotDirViewToggle()), actionCollection(), "win_dir_view_toggle");

   m_pMergeEditorPopupMenu = new QPopupMenu( this );
   chooseA->plug( m_pMergeEditorPopupMenu );
   chooseB->plug( m_pMergeEditorPopupMenu );
   chooseC->plug( m_pMergeEditorPopupMenu );
}


void KDiff3App::showPopupMenu( const QPoint& point )
{
   m_pMergeEditorPopupMenu->popup( point );
}

void KDiff3App::initStatusBar()
{
  ///////////////////////////////////////////////////////////////////
  // STATUSBAR
  if (statusBar() !=0 )
     statusBar()->message( i18n("Ready.") );
}

void KDiff3App::saveOptions( KConfig* config )
{
   if ( !m_bAutoMode )
   {
      if (!isPart())
      {
         m_pOptionDialog->m_bMaximised = m_pKDiff3Shell->isMaximized();
         if( ! m_pKDiff3Shell->isMaximized() && m_pKDiff3Shell->isVisible() )
         {
            m_pOptionDialog->m_geometry = m_pKDiff3Shell->size();
            m_pOptionDialog->m_position = m_pKDiff3Shell->pos();
         }
         if ( toolBar("mainToolBar")!=0 )
            m_pOptionDialog->m_toolBarPos = (int) toolBar("mainToolBar")->barPos();
      }

      m_pOptionDialog->saveOptions( config );
   }
}




bool KDiff3App::queryClose()
{
   saveOptions( isPart() ? m_pKDiff3Part->instance()->config() : kapp->config() );

   if(m_bOutputModified)
   {
      int result = KMessageBox::warningYesNoCancel(this,
         i18n("The merge result hasn't been saved."),
         i18n("Warning"), i18n("Save && Quit"), i18n("Quit Without Saving") );
      if ( result==KMessageBox::Cancel )
         return false;
      else if ( result==KMessageBox::Yes )
      {
         slotFileSave();
         if ( m_bOutputModified )
         {
            KMessageBox::sorry(this, i18n("Saving the merge result failed."), i18n("Warning") );
            return false;
         }
      }
   }

   m_bOutputModified = false;

   if ( m_pDirectoryMergeWindow->isDirectoryMergeInProgress() )
   {
      int result = KMessageBox::warningYesNo(this,
         i18n("You are currently doing a directory merge. Are you sure, you want to abort?"),
         i18n("Warning"), i18n("Quit"), i18n("Continue Merging") );
      if ( result!=KMessageBox::Yes )
         return false;
   }

   return true;
}


/////////////////////////////////////////////////////////////////////
// SLOT IMPLEMENTATION
/////////////////////////////////////////////////////////////////////


void KDiff3App::slotFileSave()
{
   if ( m_bDefaultFilename )
   {
      slotFileSaveAs();
   }
   else
   {
      slotStatusMsg(i18n("Saving file..."));

      bool bSuccess = m_pMergeResultWindow->saveDocument( m_outputFilename, m_pMergeResultWindowTitle->getEncoding() );
      if ( bSuccess )
      {
         m_bFileSaved = true;
         m_bOutputModified = false;
         if ( m_bDirCompare )
            m_pDirectoryMergeWindow->mergeResultSaved(m_outputFilename);
      }

      slotStatusMsg(i18n("Ready."));
   }
}

void KDiff3App::slotFileSaveAs()
{
  slotStatusMsg(i18n("Saving file with a new filename..."));

  QString s = KFileDialog::getSaveURL( QDir::currentDirPath(), 0, this, i18n("Save As...") ).url();
  if(!s.isEmpty())
  {
     m_outputFilename = s;
     m_pMergeResultWindowTitle->setFileName( m_outputFilename );
     bool bSuccess = m_pMergeResultWindow->saveDocument( m_outputFilename, m_pMergeResultWindowTitle->getEncoding() );
     if ( bSuccess )
     {
        m_bOutputModified = false;
        if ( m_bDirCompare )
           m_pDirectoryMergeWindow->mergeResultSaved(m_outputFilename);
     }
     //setCaption(url.fileName(),doc->isModified());

     m_bDefaultFilename = false;
  }

  slotStatusMsg(i18n("Ready."));
}


void printDiffTextWindow( MyPainter& painter, const QRect& view, const QString& headerText, DiffTextWindow* pDiffTextWindow, int line, int linesPerPage, QColor fgColor )
{
   QRect clipRect = view;
   clipRect.setTop(0);
   painter.setClipRect( clipRect );
   painter.translate( view.left() , 0 );
   QFontMetrics fm = painter.fontMetrics();
   //if ( fm.width(headerText) > view.width() )
   {
      // A simple wrapline algorithm
      int l=0;
      for (unsigned int p=0; p<headerText.length(); )
      {
         QString s = headerText.mid(p);
         unsigned int i;
         for(i=2;i<s.length();++i) 
            if (fm.width(s,i)>view.width())
            {
               --i;
               break;
            }
         //QString s2 = s.left(i);
         painter.drawText( 0, l*fm.height() + fm.ascent(), s.left(i) );
         p+=i;
         ++l;
      }
      painter.setPen( fgColor );
      painter.drawLine( 0, view.top()-2, view.width(), view.top()-2 );
   }

   painter.translate( 0, view.top() );
   pDiffTextWindow->print( painter, view, line, linesPerPage );
   painter.resetXForm();
}

void KDiff3App::slotFilePrint()
{
   if ( !m_pDiffTextWindow1 )
      return;

   KPrinter printer;

   int firstSelectionD3LIdx = -1;
   int lastSelectionD3LIdx = -1;
   if (                           m_pDiffTextWindow1 ) { m_pDiffTextWindow1->getSelectionRange(&firstSelectionD3LIdx, &lastSelectionD3LIdx, eD3LLineCoords); }
   if ( firstSelectionD3LIdx<0 && m_pDiffTextWindow2 ) { m_pDiffTextWindow2->getSelectionRange(&firstSelectionD3LIdx, &lastSelectionD3LIdx, eD3LLineCoords); }
   if ( firstSelectionD3LIdx<0 && m_pDiffTextWindow3 ) { m_pDiffTextWindow3->getSelectionRange(&firstSelectionD3LIdx, &lastSelectionD3LIdx, eD3LLineCoords); }
#ifdef KREPLACEMENTS_H  // Currently PrintSelection is not supported in KDEs print dialog.
   if ( firstSelectionD3LIdx>=0 )
   {
      printer.setOptionEnabled(KPrinter::PrintSelection,true);
   }
#endif

   printer.setPageSelection(KPrinter::ApplicationSide);
   printer.setMinMax(1,10000);
   printer.setCurrentPage(10000);

   int currentFirstLine = m_pDiffTextWindow1->getFirstLine();
   int currentFirstD3LIdx = m_pDiffTextWindow1->convertLineToDiff3LineIdx( currentFirstLine );

   // do some printer initialization
   printer.setFullPage( false );

   // initialize the printer using the print dialog
   if ( printer.setup( this ) )
   {
      slotStatusMsg( i18n( "Printing..." ) );
      // create a painter to paint on the printer object
      MyPainter painter( 0, m_pOptionDialog->m_bRightToLeftLanguage, width(), fontMetrics().width('W') );

      // start painting
      if( !painter.begin( &printer ) ) {               // paint on printer
         slotStatusMsg( i18n( "Printing aborted." ) );
         return;
      }
      QPaintDeviceMetrics metrics( painter.device() );
      int dpiy = metrics.logicalDpiY();
      int columnDistance = (int) ( (0.5/2.54)*dpiy ); // 0.5 cm between the columns

      int columns = m_bTripleDiff ? 3 : 2;
      int columnWidth = ( metrics.width()  - (columns-1)*columnDistance ) / columns;

      QFont f = m_pOptionDialog->m_font;
      f.setPointSizeFloat(f.pointSizeFloat()-1); // Print with slightly smaller font.
      painter.setFont( f );
      QFontMetrics fm = painter.fontMetrics();

      QString topLineText = i18n("Top line"); 

      //int headerWidth = fm.width( m_sd1.getAliasName() + ", "+topLineText+": 01234567" );
      int headerLines = fm.width( m_sd1.getAliasName() + ", "+topLineText+": 01234567" )/columnWidth+1;

      int headerMargin = headerLines * fm.height() + 3; // Text + one horizontal line
      int footerMargin = fm.height() + 3;

      QRect view ( 0, headerMargin, metrics.width(), metrics.height() - (headerMargin + footerMargin) );
      QRect view1( 0*(columnWidth + columnDistance), view.top(), columnWidth,     view.height() );
      QRect view2( 1*(columnWidth + columnDistance), view.top(), columnWidth,     view.height() );
      QRect view3( 2*(columnWidth + columnDistance), view.top(), columnWidth,     view.height() );

      int linesPerPage = view.height() / fm.height();
      int charactersPerLine = columnWidth / fm.width("W");
      if ( m_pOptionDialog->m_bWordWrap )
      {
         // For printing the lines are wrapped differently (this invalidates the first line)
         recalcWordWrap( charactersPerLine );
      }

      int totalNofLines = max2(m_pDiffTextWindow1->getNofLines(), m_pDiffTextWindow2->getNofLines());
      if ( m_bTripleDiff && m_pDiffTextWindow3)
         totalNofLines = max2(totalNofLines, m_pDiffTextWindow3->getNofLines());

      QValueList<int> pageList = printer.pageList();

      bool bPrintCurrentPage=false;
      bool bFirstPrintedPage = false;

      bool bPrintSelection = false;
      int totalNofPages = (totalNofLines+linesPerPage-1) / linesPerPage;
      int line=-1;
      int selectionEndLine = -1;

#ifdef KREPLACEMENTS_H
      if ( printer.printRange()==KPrinter::AllPages )
      {
         pageList.clear();
         for(int i=0; i<totalNofPages; ++i)
         {
            pageList.push_back(i+1);
         }
      }

      if ( printer.printRange()==KPrinter::Selection )
#else
      if ( !pageList.empty() && pageList.front()==9999 )
#endif
      {
         bPrintSelection = true;
         if ( firstSelectionD3LIdx >=0 )
         {
            line = m_pDiffTextWindow1->convertDiff3LineIdxToLine( firstSelectionD3LIdx );
            selectionEndLine = m_pDiffTextWindow1->convertDiff3LineIdxToLine( lastSelectionD3LIdx+1 );
            totalNofPages = (selectionEndLine-line+linesPerPage-1) / linesPerPage;
         }
      }

      int page = 1;

      QValueList<int>::iterator pageListIt = pageList.begin();
      for(;;)
      {
         if (!bPrintSelection)
         {
            if (pageListIt==pageList.end())
               break;
            page = *pageListIt;
            line = (page - 1) * linesPerPage;
            if (page==10000)  // This means "Print the current page"
            {
               bPrintCurrentPage=true;
               // Detect the first visible line in the window.
               line = m_pDiffTextWindow1->convertDiff3LineIdxToLine( currentFirstD3LIdx );
            }
         }
         else
         {
            if ( line>=selectionEndLine )
            {
               break;
            }
            else
            {
               if ( selectionEndLine-line < linesPerPage )
                  linesPerPage=selectionEndLine-line;
            }
         }
         if (line>=0 && line<totalNofLines )
         {

            if (bFirstPrintedPage)
               printer.newPage();

            painter.setClipping(true);

            painter.setPen( m_pOptionDialog->m_colorA );
            QString headerText1 = m_sd1.getAliasName() + ", "+topLineText+": " + QString::number(m_pDiffTextWindow1->calcTopLineInFile(line)+1);
            printDiffTextWindow( painter, view1, headerText1, m_pDiffTextWindow1, line, linesPerPage, m_pOptionDialog->m_fgColor );

            painter.setPen( m_pOptionDialog->m_colorB );
            QString headerText2 = m_sd2.getAliasName() + ", "+topLineText+": " + QString::number(m_pDiffTextWindow2->calcTopLineInFile(line)+1);
            printDiffTextWindow( painter, view2, headerText2, m_pDiffTextWindow2, line, linesPerPage, m_pOptionDialog->m_fgColor );

            if ( m_bTripleDiff && m_pDiffTextWindow3 )
            {
               painter.setPen( m_pOptionDialog->m_colorC );
               QString headerText3 = m_sd3.getAliasName() + ", "+topLineText+": " + QString::number(m_pDiffTextWindow3->calcTopLineInFile(line)+1);
               printDiffTextWindow( painter, view3, headerText3, m_pDiffTextWindow3, line, linesPerPage, m_pOptionDialog->m_fgColor );
            }
            painter.setClipping(false);

            painter.setPen( m_pOptionDialog->m_fgColor );
            painter.drawLine( 0, view.bottom()+3, view.width(), view.bottom()+3 ); 
            QString s = bPrintCurrentPage ? QString("") 
                                          : QString::number( page ) + "/" + QString::number(totalNofPages);
            if ( bPrintSelection ) s+=" (" + i18n("Selection") + ")";
            painter.drawText( (view.right() - painter.fontMetrics().width( s ))/2,
                        view.bottom() + painter.fontMetrics().ascent() + 5, s );

            bFirstPrintedPage = true;
         }

         if ( bPrintSelection )
         {
            line+=linesPerPage;
            ++page;
         }
         else
         {
            ++pageListIt;
         }
      }

      painter.end();

      if ( m_pOptionDialog->m_bWordWrap )
      {
         recalcWordWrap();
         m_pDiffVScrollBar->setValue( m_pDiffTextWindow1->convertDiff3LineIdxToLine( currentFirstD3LIdx ) );
      }

      slotStatusMsg( i18n( "Printing completed." ) );
   }
   else
   {
      slotStatusMsg( i18n( "Printing aborted." ) );
   }
}

void KDiff3App::slotFileQuit()
{
   slotStatusMsg(i18n("Exiting..."));

   if( !queryClose() )
       return;      // Don't quit

   KApplication::exit( isFileSaved() ? 0 : 1 );
}



void KDiff3App::slotViewToolBar()
{
   slotStatusMsg(i18n("Toggling toolbar..."));
   m_pOptionDialog->m_bShowToolBar = viewToolBar->isChecked();
   ///////////////////////////////////////////////////////////////////
   // turn Toolbar on or off
   if ( toolBar("mainToolBar") !=0 )
   {
      if(!m_pOptionDialog->m_bShowToolBar)
      {
         toolBar("mainToolBar")->hide();
      }
      else
      {
         toolBar("mainToolBar")->show();
      }
   }

   slotStatusMsg(i18n("Ready."));
}

void KDiff3App::slotViewStatusBar()
{
   slotStatusMsg(i18n("Toggle the statusbar..."));
   m_pOptionDialog->m_bShowStatusBar = viewStatusBar->isChecked();
   ///////////////////////////////////////////////////////////////////
   //turn Statusbar on or off
   if (statusBar() !=0 )
   {
      if(!viewStatusBar->isChecked())
      {
         statusBar()->hide();
      }
      else
      {
         statusBar()->show();
      }
   }

   slotStatusMsg(i18n("Ready."));
}


void KDiff3App::slotStatusMsg(const QString &text)
{
   ///////////////////////////////////////////////////////////////////
   // change status message permanently
   if (statusBar() !=0 )
   {
      statusBar()->clear();
      statusBar()->message( text );
   }
}




#include "kdiff3.moc"