Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 328 insertions, 0 deletions

diff --git a/kutils/kreplace.cpp b/kutils/kreplace.cpp
new file mode 100644
index 000000000..6740c297a
--- /dev/null
+++ b/kutils/kreplace.cpp
@@ -0,0 +1,328 @@
+/*
+    Copyright (C) 2001, S.R.Haque <srhaque@iee.org>.
+    Copyright (C) 2002, David Faure <david@mandrakesoft.com>
+    This file is part of the KDE project
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License version 2, as published by the Free Software Foundation.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#include <qlabel.h>
+#include <kapplication.h>
+#include <kdebug.h>
+
+#include <klocale.h>
+#include <kmessagebox.h>
+#include "kreplace.h"
+#include "kreplacedialog.h"
+#include <qregexp.h>
+
+//#define DEBUG_REPLACE
+#define INDEX_NOMATCH -1
+
+class KReplaceNextDialog : public KDialogBase
+{
+public:
+    KReplaceNextDialog( QWidget *parent );
+    void setLabel( const QString& pattern, const QString& replacement );
+private:
+    QLabel* m_mainLabel;
+};
+
+KReplaceNextDialog::KReplaceNextDialog(QWidget *parent) :
+    KDialogBase(parent, 0, false,  // non-modal!
+        i18n("Replace"),
+        User3 | User2 | User1 | Close,
+        User3,
+        false,
+        i18n("&All"), i18n("&Skip"), i18n("Replace"))
+{
+    m_mainLabel = new QLabel( this );
+    setMainWidget( m_mainLabel );
+    resize(minimumSize());
+}
+
+void KReplaceNextDialog::setLabel( const QString& pattern, const QString& replacement )
+{
+    m_mainLabel->setText( i18n("Replace '%1' with '%2'?").arg(pattern).arg(replacement) );
+}
+
+////
+
+KReplace::KReplace(const QString &pattern, const QString &replacement, long options, QWidget *parent) :
+    KFind( pattern, options, parent )
+{
+    m_replacements = 0;
+    m_replacement = replacement;
+}
+
+KReplace::KReplace(const QString &pattern, const QString &replacement, long options, QWidget *parent, QWidget *dlg) :
+    KFind( pattern, options, parent, dlg )
+{
+    m_replacements = 0;
+    m_replacement = replacement;
+}
+
+KReplace::~KReplace()
+{
+    // KFind::~KFind will delete m_dialog
+}
+
+KDialogBase* KReplace::replaceNextDialog( bool create )
+{
+    if ( m_dialog || create )
+        return dialog();
+    return 0L;
+}
+
+KReplaceNextDialog* KReplace::dialog()
+{
+    if ( !m_dialog )
+    {
+        m_dialog = new KReplaceNextDialog( parentWidget() );
+        connect( m_dialog, SIGNAL( user1Clicked() ), this, SLOT( slotReplaceAll() ) );
+        connect( m_dialog, SIGNAL( user2Clicked() ), this, SLOT( slotSkip() ) );
+        connect( m_dialog, SIGNAL( user3Clicked() ), this, SLOT( slotReplace() ) );
+        connect( m_dialog, SIGNAL( finished() ), this, SLOT( slotDialogClosed() ) );
+    }
+    return static_cast<KReplaceNextDialog *>(m_dialog);
+}
+
+void KReplace::displayFinalDialog() const
+{
+    if ( !m_replacements )
+        KMessageBox::information(parentWidget(), i18n("No text was replaced."));
+    else
+        KMessageBox::information(parentWidget(), i18n("1 replacement done.", "%n replacements done.", m_replacements ) );
+}
+
+KFind::Result KReplace::replace()
+{
+#ifdef DEBUG_REPLACE
+    kdDebug() << k_funcinfo << "m_index=" << m_index << endl;
+#endif
+    if ( m_index == INDEX_NOMATCH && m_lastResult == Match )
+    {
+        m_lastResult = NoMatch;
+        return NoMatch;
+    }
+
+    do // this loop is only because validateMatch can fail
+    {
+#ifdef DEBUG_REPLACE
+        kdDebug() << k_funcinfo << "beginning of loop: m_index=" << m_index << endl;
+#endif
+        // Find the next match.
+        if ( m_options & KReplaceDialog::RegularExpression )
+            m_index = KFind::find(m_text, *m_regExp, m_index, m_options, &m_matchedLength);
+        else
+            m_index = KFind::find(m_text, m_pattern, m_index, m_options, &m_matchedLength);
+#ifdef DEBUG_REPLACE
+        kdDebug() << k_funcinfo << "KFind::find returned m_index=" << m_index << endl;
+#endif
+        if ( m_index != -1 )
+        {
+            // Flexibility: the app can add more rules to validate a possible match
+            if ( validateMatch( m_text, m_index, m_matchedLength ) )
+            {
+                if ( m_options & KReplaceDialog::PromptOnReplace )
+                {
+#ifdef DEBUG_REPLACE
+                    kdDebug() << k_funcinfo << "PromptOnReplace" << endl;
+#endif
+                    // Display accurate initial string and replacement string, they can vary
+                    QString matchedText = m_text.mid( m_index, m_matchedLength );
+                    QString rep = matchedText;
+                    KReplace::replace(rep, m_replacement, 0, m_options, m_matchedLength);
+                    dialog()->setLabel( matchedText, rep );
+                    dialog()->show();
+
+                    // Tell the world about the match we found, in case someone wants to
+                    // highlight it.
+                    emit highlight(m_text, m_index, m_matchedLength);
+
+                    m_lastResult = Match;
+                    return Match;
+                }
+                else
+                {
+                    doReplace(); // this moves on too
+                }
+            }
+            else
+            {
+                // not validated -> move on
+                if (m_options & KFindDialog::FindBackwards)
+                    m_index--;
+                else
+                    m_index++;
+            }
+        } else
+            m_index = INDEX_NOMATCH; // will exit the loop
+    }
+    while (m_index != INDEX_NOMATCH);
+
+    m_lastResult = NoMatch;
+    return NoMatch;
+}
+
+int KReplace::replace(QString &text, const QString &pattern, const QString &replacement, int index, long options, int *replacedLength)
+{
+    int matchedLength;
+
+    index = KFind::find(text, pattern, index, options, &matchedLength);
+    if (index != -1)
+    {
+        *replacedLength = replace(text, replacement, index, options, matchedLength);
+        if (options & KReplaceDialog::FindBackwards)
+            index--;
+        else
+            index += *replacedLength;
+    }
+    return index;
+}
+
+int KReplace::replace(QString &text, const QRegExp &pattern, const QString &replacement, int index, long options, int *replacedLength)
+{
+    int matchedLength;
+
+    index = KFind::find(text, pattern, index, options, &matchedLength);
+    if (index != -1)
+    {
+        *replacedLength = replace(text, replacement, index, options, matchedLength);
+        if (options & KReplaceDialog::FindBackwards)
+            index--;
+        else
+            index += *replacedLength;
+    }
+    return index;
+}
+
+int KReplace::replace(QString &text, const QString &replacement, int index, long options, int length)
+{
+    QString rep = replacement;
+    // Backreferences: replace \0 with the right portion of 'text'
+    if ( options & KReplaceDialog::BackReference )
+        rep.replace( "\\0", text.mid( index, length ) );
+    // Then replace rep into the text
+    text.replace(index, length, rep);
+    return rep.length();
+}
+
+void KReplace::slotReplaceAll()
+{
+    doReplace();
+    m_options &= ~KReplaceDialog::PromptOnReplace;
+    emit optionsChanged();
+    emit findNext();
+}
+
+void KReplace::slotSkip()
+{
+    if (m_options & KReplaceDialog::FindBackwards)
+        m_index--;
+    else
+        m_index++;
+    if ( m_dialogClosed ) {
+        delete m_dialog; // hide it again
+        m_dialog = 0L;
+    } else
+        emit findNext();
+}
+
+void KReplace::slotReplace()
+{
+    doReplace();
+    if ( m_dialogClosed ) {
+        delete m_dialog; // hide it again
+        m_dialog = 0L;
+    } else
+        emit findNext();
+}
+
+void KReplace::doReplace()
+{
+    int replacedLength = KReplace::replace(m_text, m_replacement, m_index, m_options, m_matchedLength);
+
+    // Tell the world about the replacement we made, in case someone wants to
+    // highlight it.
+    emit replace(m_text, m_index, replacedLength, m_matchedLength);
+#ifdef DEBUG_REPLACE
+    kdDebug() << k_funcinfo << "after replace() signal: m_index=" << m_index << " replacedLength=" << replacedLength << endl;
+#endif
+    m_replacements++;
+    if (m_options & KReplaceDialog::FindBackwards)
+        m_index--;
+    else {
+        m_index += replacedLength;
+        // when replacing the empty pattern, move on. See also kjs/regexp.cpp for how this should be done for regexps.
+        if ( m_pattern.isEmpty() )
+            ++m_index;
+    }
+#ifdef DEBUG_REPLACE
+    kdDebug() << k_funcinfo << "after adjustement: m_index=" << m_index << endl;
+#endif
+}
+
+void KReplace::resetCounts()
+{
+    KFind::resetCounts();
+    m_replacements = 0;
+}
+
+bool KReplace::shouldRestart( bool forceAsking, bool showNumMatches ) const
+{
+    // Only ask if we did a "find from cursor", otherwise it's pointless.
+    // ... Or if the prompt-on-replace option was set.
+    // Well, unless the user can modify the document during a search operation,
+    // hence the force boolean.
+    if ( !forceAsking && (m_options & KFindDialog::FromCursor) == 0
+         && (m_options & KReplaceDialog::PromptOnReplace) == 0 )
+    {
+        displayFinalDialog();
+        return false;
+    }
+    QString message;
+    if ( showNumMatches )
+    {
+        if ( !m_replacements )
+            message = i18n("No text was replaced.");
+        else
+            message = i18n("1 replacement done.", "%n replacements done.", m_replacements );
+    }
+    else
+    {
+        if ( m_options & KFindDialog::FindBackwards )
+            message = i18n( "Beginning of document reached." );
+        else
+            message = i18n( "End of document reached." );
+    }
+
+    message += "\n";
+    // Hope this word puzzle is ok, it's a different sentence
+    message +=
+        ( m_options & KFindDialog::FindBackwards ) ?
+        i18n("Do you want to restart search from the end?")
+        : i18n("Do you want to restart search at the beginning?");
+
+    int ret = KMessageBox::questionYesNo( parentWidget(), message, QString::null, i18n("Restart"), i18n("Stop") );
+    return( ret == KMessageBox::Yes );
+}
+
+void KReplace::closeReplaceNextDialog()
+{
+    closeFindNextDialog();
+}
+
+#include "kreplace.moc"