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329 lines
10 KiB
329 lines
10 KiB
/*
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Copyright (C) 2001, S.R.Haque <srhaque@iee.org>.
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Copyright (C) 2002, David Faure <david@mandrakesoft.com>
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This file is part of the KDE project
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2, as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <tqlabel.h>
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#include <tdeapplication.h>
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#include <kdebug.h>
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#include <tdelocale.h>
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#include <tdemessagebox.h>
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#include "kreplace.h"
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#include "kreplacedialog.h"
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#include <tqregexp.h>
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//#define DEBUG_REPLACE
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#define INDEX_NOMATCH -1
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class KReplaceNextDialog : public KDialogBase
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{
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public:
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KReplaceNextDialog( TQWidget *parent );
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void setLabel( const TQString& pattern, const TQString& replacement );
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private:
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TQLabel* m_mainLabel;
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};
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KReplaceNextDialog::KReplaceNextDialog(TQWidget *parent) :
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KDialogBase(parent, 0, false, // non-modal!
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i18n("Replace"),
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User3 | User2 | User1 | Close,
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User3,
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false,
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i18n("&All"), i18n("&Skip"), i18n("Replace"))
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{
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m_mainLabel = new TQLabel( this );
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setMainWidget( m_mainLabel );
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resize(minimumSize());
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}
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void KReplaceNextDialog::setLabel( const TQString& pattern, const TQString& replacement )
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{
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m_mainLabel->setText( i18n("Replace '%1' with '%2'?").arg(pattern).arg(replacement) );
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}
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////
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KReplace::KReplace(const TQString &pattern, const TQString &replacement, long options, TQWidget *parent) :
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KFind( pattern, options, parent )
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{
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m_replacements = 0;
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m_replacement = replacement;
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}
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KReplace::KReplace(const TQString &pattern, const TQString &replacement, long options, TQWidget *parent, TQWidget *dlg) :
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KFind( pattern, options, parent, dlg )
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{
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m_replacements = 0;
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m_replacement = replacement;
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}
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KReplace::~KReplace()
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{
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// KFind::~KFind will delete m_dialog
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}
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KDialogBase* KReplace::replaceNextDialog( bool create )
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{
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if ( m_dialog || create )
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return dialog();
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return 0L;
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}
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KReplaceNextDialog* KReplace::dialog()
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{
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if ( !m_dialog )
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{
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m_dialog = new KReplaceNextDialog( parentWidget() );
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connect( m_dialog, TQT_SIGNAL( user1Clicked() ), this, TQT_SLOT( slotReplaceAll() ) );
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connect( m_dialog, TQT_SIGNAL( user2Clicked() ), this, TQT_SLOT( slotSkip() ) );
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connect( m_dialog, TQT_SIGNAL( user3Clicked() ), this, TQT_SLOT( slotReplace() ) );
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connect( m_dialog, TQT_SIGNAL( finished() ), this, TQT_SLOT( slotDialogClosed() ) );
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}
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return static_cast<KReplaceNextDialog *>(m_dialog);
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}
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void KReplace::displayFinalDialog() const
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{
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if ( !m_replacements )
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KMessageBox::information(parentWidget(), i18n("No text was replaced."));
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else
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KMessageBox::information(parentWidget(), i18n("1 replacement done.", "%n replacements done.", m_replacements ) );
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}
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KFind::Result KReplace::replace()
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{
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "m_index=" << m_index << endl;
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#endif
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if ( m_index == INDEX_NOMATCH && m_lastResult == Match )
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{
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m_lastResult = NoMatch;
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return NoMatch;
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}
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do // this loop is only because validateMatch can fail
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{
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "beginning of loop: m_index=" << m_index << endl;
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#endif
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// Find the next match.
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if ( m_options & KReplaceDialog::RegularExpression )
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m_index = KFind::find(m_text, *m_regExp, m_index, m_options, &m_matchedLength);
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else
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m_index = KFind::find(m_text, m_pattern, m_index, m_options, &m_matchedLength);
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "KFind::find returned m_index=" << m_index << endl;
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#endif
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if ( m_index != -1 )
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{
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// Flexibility: the app can add more rules to validate a possible match
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if ( validateMatch( m_text, m_index, m_matchedLength ) )
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{
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if ( m_options & KReplaceDialog::PromptOnReplace )
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{
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "PromptOnReplace" << endl;
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#endif
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// Display accurate initial string and replacement string, they can vary
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TQString matchedText = m_text.mid( m_index, m_matchedLength );
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TQString rep = matchedText;
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KReplace::replace(rep, m_replacement, 0, m_options, m_matchedLength);
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dialog()->setLabel( matchedText, rep );
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dialog()->show();
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// Tell the world about the match we found, in case someone wants to
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// highlight it.
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emit highlight(m_text, m_index, m_matchedLength);
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m_lastResult = Match;
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return Match;
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}
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else
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{
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doReplace(); // this moves on too
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}
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}
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else
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{
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// not validated -> move on
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if (m_options & KFindDialog::FindBackwards)
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m_index--;
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else
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m_index++;
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}
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} else
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m_index = INDEX_NOMATCH; // will exit the loop
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}
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while (m_index != INDEX_NOMATCH);
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m_lastResult = NoMatch;
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return NoMatch;
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}
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int KReplace::replace(TQString &text, const TQString &pattern, const TQString &replacement, int index, long options, int *replacedLength)
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{
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int matchedLength;
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index = KFind::find(text, pattern, index, options, &matchedLength);
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if (index != -1)
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{
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*replacedLength = replace(text, replacement, index, options, matchedLength);
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if (options & KReplaceDialog::FindBackwards)
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index--;
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else
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index += *replacedLength;
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}
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return index;
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}
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int KReplace::replace(TQString &text, const TQRegExp &pattern, const TQString &replacement, int index, long options, int *replacedLength)
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{
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int matchedLength;
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index = KFind::find(text, pattern, index, options, &matchedLength);
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if (index != -1)
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{
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*replacedLength = replace(text, replacement, index, options, matchedLength);
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if (options & KReplaceDialog::FindBackwards)
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index--;
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else
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index += *replacedLength;
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}
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return index;
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}
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int KReplace::replace(TQString &text, const TQString &replacement, int index, long options, int length)
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{
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TQString rep = replacement;
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// Backreferences: replace \0 with the right portion of 'text'
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if ( options & KReplaceDialog::BackReference )
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rep.replace( "\\0", text.mid( index, length ) );
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// Then replace rep into the text
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text.replace(index, length, rep);
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return rep.length();
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}
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void KReplace::slotReplaceAll()
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{
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doReplace();
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m_options &= ~KReplaceDialog::PromptOnReplace;
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emit optionsChanged();
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emit findNext();
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}
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void KReplace::slotSkip()
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{
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if (m_options & KReplaceDialog::FindBackwards)
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m_index--;
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else
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m_index++;
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if ( m_dialogClosed ) {
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delete m_dialog; // hide it again
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m_dialog = 0L;
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} else
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emit findNext();
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}
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void KReplace::slotReplace()
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{
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doReplace();
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if ( m_dialogClosed ) {
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delete m_dialog; // hide it again
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m_dialog = 0L;
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} else
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emit findNext();
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}
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void KReplace::doReplace()
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{
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int replacedLength = KReplace::replace(m_text, m_replacement, m_index, m_options, m_matchedLength);
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// Tell the world about the replacement we made, in case someone wants to
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// highlight it.
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emit replace(m_text, m_index, replacedLength, m_matchedLength);
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "after replace() signal: m_index=" << m_index << " replacedLength=" << replacedLength << endl;
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#endif
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m_replacements++;
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if (m_options & KReplaceDialog::FindBackwards)
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m_index--;
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else {
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m_index += replacedLength;
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// when replacing the empty pattern, move on. See also kjs/regexp.cpp for how this should be done for regexps.
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if ( m_pattern.isEmpty() )
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++m_index;
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}
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#ifdef DEBUG_REPLACE
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kdDebug() << k_funcinfo << "after adjustement: m_index=" << m_index << endl;
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#endif
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}
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void KReplace::resetCounts()
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{
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KFind::resetCounts();
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m_replacements = 0;
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}
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bool KReplace::shouldRestart( bool forceAsking, bool showNumMatches ) const
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{
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// Only ask if we did a "find from cursor", otherwise it's pointless.
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// ... Or if the prompt-on-replace option was set.
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// Well, unless the user can modify the document during a search operation,
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// hence the force boolean.
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if ( !forceAsking && (m_options & KFindDialog::FromCursor) == 0
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&& (m_options & KReplaceDialog::PromptOnReplace) == 0 )
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{
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displayFinalDialog();
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return false;
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}
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TQString message;
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if ( showNumMatches )
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{
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if ( !m_replacements )
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message = i18n("No text was replaced.");
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else
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message = i18n("1 replacement done.", "%n replacements done.", m_replacements );
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}
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else
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{
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if ( m_options & KFindDialog::FindBackwards )
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message = i18n( "Beginning of document reached." );
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else
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message = i18n( "End of document reached." );
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}
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message += "\n";
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// Hope this word puzzle is ok, it's a different sentence
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message +=
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( m_options & KFindDialog::FindBackwards ) ?
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i18n("Do you want to restart search from the end?")
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: i18n("Do you want to restart search at the beginning?");
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int ret = KMessageBox::questionYesNo( parentWidget(), message, TQString::null, i18n("Restart"), i18n("Stop") );
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return( ret == KMessageBox::Yes );
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}
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void KReplace::closeReplaceNextDialog()
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{
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closeFindNextDialog();
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}
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#include "kreplace.moc"
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