Added old abandoned KDE3 version of koffice

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/koffice@1077364 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 321 insertions, 0 deletions

diff --git a/lib/kotext/KoBgSpellCheck.cpp b/lib/kotext/KoBgSpellCheck.cpp
new file mode 100644
index 00000000..9dd0b9b9
--- /dev/null
+++ b/lib/kotext/KoBgSpellCheck.cpp
@@ -0,0 +1,321 @@
+/* This file is part of the KDE project
+   Copyright (C) 2004 Zack Rusin <zack@kde.org>
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   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.
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "KoBgSpellCheck.h"
+#include "KoBgSpellCheck.moc"
+#include "KoTextParag.h"
+
+#include "KoSpell.h"
+
+#include "KoTextObject.h"
+#include "KoTextDocument.h"
+
+
+#include <kspell2/backgroundchecker.h>
+#include <kspell2/broker.h>
+#include <kspell2/dictionary.h>
+#include <kspell2/settings.h>
+#include <kspell2/filter.h>
+using namespace KSpell2;
+
+#include <klocale.h>
+#include <kdebug.h>
+#include <kdeversion.h>
+#include <qtimer.h>
+#include <qptrdict.h>
+
+// #define DEBUG_BGSPELLCHECKING
+
+class KoBgSpellCheck::Private
+{
+public:
+    int marked;
+    KoSpell *backSpeller;
+    QPtrDict<KoTextParag> paragCache;
+    bool startupChecking;
+    KoTextParag* intraWordParag;
+    int intraWordPosition;
+};
+
+static const int delayAfterMarked = 10;
+
+KoBgSpellCheck::KoBgSpellCheck( const Broker::Ptr& broker, QObject *parent,
+                                const char *name )
+    : QObject( parent, name )
+{
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "KoBgSpellCheck::KoBgSpellCheck " << this << endl;
+#endif
+    d = new Private;
+    d->startupChecking = false;
+    d->marked = 0;
+    d->intraWordParag = 0;
+    d->intraWordPosition = 0;
+    d->backSpeller = new KoSpell( broker, this, "KoSpell" );
+
+    connect( d->backSpeller, SIGNAL(misspelling(const QString&, int)),
+             SLOT(spellCheckerMisspelling(const QString &, int )) );
+    connect( d->backSpeller, SIGNAL(done()),
+             SLOT(spellCheckerDone()) );
+    connect( d->backSpeller, SIGNAL(aboutToFeedText()),
+             SLOT(slotClearPara()) );
+}
+
+KoBgSpellCheck::~KoBgSpellCheck()
+{
+    delete d; d = 0;
+}
+
+void KoBgSpellCheck::registerNewTextObject( KoTextObject *obj )
+{
+    Q_ASSERT( obj );
+
+    connect( obj, SIGNAL(paragraphCreated(KoTextParag*)),
+             SLOT(slotParagraphCreated(KoTextParag*)) );
+    connect( obj, SIGNAL(paragraphModified(KoTextParag*, int, int, int)),
+             SLOT(slotParagraphModified(KoTextParag*, int, int, int)) );
+    connect( obj, SIGNAL(paragraphDeleted(KoTextParag*)),
+             SLOT(slotParagraphDeleted(KoTextParag*)) );
+}
+
+void KoBgSpellCheck::setEnabled( bool b )
+{
+    d->backSpeller->settings()->setBackgroundCheckerEnabled( b );
+    if ( b )
+        start();
+    else
+        stop();
+}
+
+bool KoBgSpellCheck::enabled() const
+{
+    return d->backSpeller->settings()->backgroundCheckerEnabled();
+}
+
+void KoBgSpellCheck::start()
+{
+    if ( !enabled() )
+        return;
+
+    d->startupChecking = true;
+    d->marked = 0;
+    KoTextIterator *itr = createWholeDocIterator();
+    d->backSpeller->check( itr );
+    d->backSpeller->start();
+}
+
+void KoBgSpellCheck::spellCheckerMisspelling( const QString &old, int pos )
+{
+    KoTextParag* parag = d->backSpeller->currentParag();
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "KoBgSpellCheck::spellCheckerMisspelling parag=" << parag
+                   << " (id=" << parag->paragId() << ", length="
+                   << parag->length() << ") pos=" << pos << " length="
+                   << old.length() << endl;
+#endif
+    markWord( parag, pos, old.length(), true );
+    // Repaint immediately, since the checking is timer-based (slow), it looks
+    // slow (chunky) if we only repaint once a paragraph is completely done.
+    parag->document()->emitRepaintChanged();
+
+    if ( d->startupChecking && d->marked > delayAfterMarked ) {
+        d->marked = 0;
+        QTimer::singleShot( 1000, this, SLOT(checkerContinue()) );
+    } else {
+        if ( d->startupChecking )
+            ++d->marked;
+        checkerContinue();
+    }
+}
+
+void KoBgSpellCheck::markWord( KoTextParag* parag, int pos, int length, bool misspelled )
+{
+    if ( pos >= parag->length() ) {
+        kdDebug(32500) << "markWord: " << pos << " is out of parag (length=" << parag->length() << ")" << endl;
+        return;
+    }
+    if ( misspelled && parag == d->intraWordParag &&
+         d->intraWordPosition >= pos &&
+         d->intraWordPosition < pos+length ) {
+#ifdef DEBUG_BGSPELLCHECKING
+        kdDebug(32500) << "markWord: " << parag << " " << pos << " to " << pos+length << " - word being edited" << endl;
+#endif
+        return; // not yet
+    }
+
+    KoTextStringChar *ch = parag->at( pos );
+    KoTextFormat format( *ch->format() );
+    format.setMisspelled( misspelled );
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "markWord: changing mark from " << pos << " length=" << length << " misspelled=" << misspelled << endl;
+#endif
+    parag->setFormat( pos, length, &format, true, KoTextFormat::Misspelled );
+    parag->setChanged( true );
+    // don't repaint here, in the slotParagraphModified case we want to repaint only once at the end
+}
+
+void KoBgSpellCheck::checkerContinue()
+{
+    if(enabled())
+        d->backSpeller->continueChecking();
+}
+
+void KoBgSpellCheck::spellCheckerDone()
+{
+    d->startupChecking = false;
+
+    if ( d->paragCache.isEmpty() )
+        return;
+
+    QPtrDictIterator<KoTextParag> itr( d->paragCache );
+    KoTextParag *parag = d->paragCache.take( itr.currentKey() );
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "spellCheckerDone : " << parag << ", cache = "<< d->paragCache.count() <<endl;
+#endif
+    d->backSpeller->check( parag );
+}
+
+void KoBgSpellCheck::stop()
+{
+#ifdef DEBUG_BGSPELLCHECKING
+  kdDebug(32500) << "KoBgSpellCheck::stopSpellChecking" << endl;
+#endif
+  d->backSpeller->stop();
+}
+
+void KoBgSpellCheck::slotParagraphCreated( KoTextParag* parag )
+{
+    parag->string()->setNeedsSpellCheck( true );
+    if ( !enabled() )
+        return;
+    if ( !d->backSpeller->check( parag ) ) {
+        d->paragCache.insert( parag, parag );
+    }
+}
+
+void KoBgSpellCheck::slotParagraphModified( KoTextParag* parag, int /*ParagModifyType*/,
+                                            int pos, int length )
+{
+    parag->string()->setNeedsSpellCheck( true );
+    if ( !enabled() )
+        return;
+
+    if ( d->backSpeller->checking() ) {
+        d->paragCache.insert( parag, parag );
+        return;
+    }
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "Para modified " << parag << " pos = "<<pos<<", length = "<< length <<endl;
+#endif
+
+#if KDE_VERSION > KDE_MAKE_VERSION(3,3,0)
+    if ( length < 10 ) {
+        QString str = parag->string()->stringToSpellCheck();
+        /// ##### do we really need to create a Filter every time?
+        Filter filter;
+        filter.setBuffer( str );
+        // pos - 1 wasn't enough for the case a splitting a word into two misspelled halves
+        filter.setCurrentPosition( QMAX( 0, pos - 2 ) );
+        int curPos = filter.currentPosition(); // Filter adjusted it by going back to the last word
+        //kdDebug() << "str='" << str << "' set position " << QMAX(0, pos-2) << " got back curPos=" << curPos << endl;
+        filter.setSettings( d->backSpeller->settings() );
+
+        // Tricky: KSpell2::Filter::nextWord's behavior makes the for() loop skip ignored words,
+        // so it doesn't mark them as OK... So we need to clear the marks everywhere first.
+        // To avoid flickering the repainting is only done once, after checking the parag.
+        markWord( parag, curPos, parag->length() - curPos, false );
+
+        for ( Word w = filter.nextWord(); !w.end; w = filter.nextWord() ) {
+            bool misspelling = !d->backSpeller->checkWord( w.word );
+            //kdDebug()<<"Word = \""<< w.word<< "\" , misspelled = "<<misspelling<<endl;
+            markWord( parag, w.start, w.word.length(), misspelling );
+        }
+        if ( parag->hasChanged() ) // always true currently
+            parag->document()->emitRepaintChanged();
+#else
+    if ( length < 3 ) {
+        QString word;
+        int start;
+        bool misspelled = !d->backSpeller->checkWordInParagraph( parag, pos,
+                                                                 word, start );
+        markWord( parag, start, word.length(), misspelled );
+        parag->document()->emitRepaintChanged();
+#endif
+    } else
+    {
+        d->backSpeller->check( parag );
+    }
+}
+
+void KoBgSpellCheck::slotParagraphDeleted( KoTextParag* parag )
+{
+    d->paragCache.take( parag );
+    if ( parag == d->intraWordParag )
+        d->intraWordParag = 0;
+
+    // don't do it here, let KoTextIterator do that after adjusting itself better...
+    //if ( parag == d->backSpeller->currentParag() )
+    //    d->backSpeller->slotCurrentParagraphDeleted();
+}
+
+void KoBgSpellCheck::slotClearPara()
+{
+    KoTextParag *parag = d->backSpeller->currentParag();
+
+    // We remove any misspelled format from the paragraph
+    // - otherwise we'd never notice words being ok again :)
+    // (e.g. due to adding a word to the ignore list, not due to editing)
+    //
+    // TODO: do this all only if there was a format with 'misspelled' in the paragraph,
+    // to minimize repaints
+    KoTextStringChar *ch = parag->at( 0 );
+    KoTextFormat format( *ch->format() );
+    format.setMisspelled( false );
+#ifdef DEBUG_BGSPELLCHECKING
+    kdDebug(32500) << "clearPara: resetting mark on paragraph " << parag->paragId() << endl;
+#endif
+    parag->setFormat( 0, parag->length()-1, &format, true,
+                      KoTextFormat::Misspelled );
+    parag->setChanged( true );
+    parag->document()->emitRepaintChanged();
+}
+
+KSpell2::Settings * KoBgSpellCheck::settings() const
+{
+    return d->backSpeller->settings();
+}
+
+void KoBgSpellCheck::setIntraWordEditing( KoTextParag* parag, int index )
+{
+    KoTextParag* oldIntraWordParag = d->intraWordParag;
+    int oldIntraWordPosition = d->intraWordPosition;
+
+    d->intraWordParag = parag;
+    d->intraWordPosition = index;
+
+    if ( oldIntraWordParag && !parag ) {
+        // When typing a letter into an existing word and then going somewhere else,
+        // we need to re-check that word - after moving d->intra* out of the way of course.
+        slotParagraphModified( oldIntraWordParag, 0 /*unused*/, oldIntraWordPosition, 1 );
+    }
+}