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, 419 insertions, 0 deletions

diff --git a/kdeui/ktextedit.cpp b/kdeui/ktextedit.cpp
new file mode 100644
index 000000000..a368a56d0
--- /dev/null
+++ b/kdeui/ktextedit.cpp
@@ -0,0 +1,419 @@
+/* This file is part of the KDE libraries
+   Copyright (C) 2002 Carsten Pfeiffer <[email protected]>
+
+   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.
+*/
+
+#include "ktextedit.h"
+
+#include <qapplication.h>
+#include <qclipboard.h>
+#include <qpopupmenu.h>
+
+#include <ksyntaxhighlighter.h>
+#include <kspell.h>
+#include <kcursor.h>
+#include <kglobalsettings.h>
+#include <kstdaccel.h>
+#include <kiconloader.h>
+#include <klocale.h>
+
+class KTextEdit::KTextEditPrivate
+{
+public:
+    KTextEditPrivate()
+        : customPalette( false ),
+          checkSpellingEnabled( false ),
+          highlighter( 0 ),
+          spell( 0 )
+    {}
+    ~KTextEditPrivate() {
+        delete highlighter;
+        delete spell;
+    }
+
+    bool customPalette;
+    bool checkSpellingEnabled;
+    KDictSpellingHighlighter *highlighter;
+    KSpell *spell;
+};
+
+KTextEdit::KTextEdit( const QString& text, const QString& context,
+                      QWidget *parent, const char *name )
+    : QTextEdit ( text, context, parent, name )
+{
+    d = new KTextEditPrivate();
+    KCursor::setAutoHideCursor( this, true, false );
+}
+
+KTextEdit::KTextEdit( QWidget *parent, const char *name )
+    : QTextEdit ( parent, name )
+{
+    d = new KTextEditPrivate();
+    KCursor::setAutoHideCursor( this, true, false );
+}
+
+KTextEdit::~KTextEdit()
+{
+    delete d;
+}
+
+void KTextEdit::keyPressEvent( QKeyEvent *e )
+{
+    KKey key( e );
+
+    if ( KStdAccel::copy().contains( key ) ) {
+        copy();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::paste().contains( key ) ) {
+        paste();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::cut().contains( key ) ) {
+        cut();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::undo().contains( key ) ) {
+        undo();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::redo().contains( key ) ) {
+        redo();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::deleteWordBack().contains( key ) )
+    {
+        deleteWordBack();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::deleteWordForward().contains( key ) )
+    {
+        deleteWordForward();
+        e->accept();
+        return;
+    }
+    else if ( KStdAccel::backwardWord().contains( key ) )
+    {
+      CursorAction action = MoveWordBackward;
+      int para, index;
+      getCursorPosition( &para, & index );
+      if (text(para).isRightToLeft())
+           action = MoveWordForward;
+      moveCursor(action, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::forwardWord().contains( key ) )
+    {
+      CursorAction action = MoveWordForward;
+      int para, index;
+      getCursorPosition( &para, & index );
+      if (text(para).isRightToLeft())
+	  action = MoveWordBackward;
+      moveCursor( action, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::next().contains( key ) )
+    {
+      moveCursor( MovePgDown, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::prior().contains( key ) )
+    {
+      moveCursor( MovePgUp, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::home().contains( key ) )
+    {
+      moveCursor( MoveHome, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::end().contains( key ) )
+    {
+      moveCursor( MoveEnd, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::beginningOfLine().contains( key ) )
+    {
+      moveCursor( MoveLineStart, false );
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::endOfLine().contains( key ) )
+    {
+      moveCursor(MoveLineEnd, false);
+      e->accept();
+      return;
+    }
+    else if ( KStdAccel::pasteSelection().contains( key ) )
+    {
+        QString text = QApplication::clipboard()->text( QClipboard::Selection);
+        if ( !text.isEmpty() )
+            insert( text );
+        e->accept();
+        return;
+    }
+
+    // ignore Ctrl-Return so that KDialogs can close the dialog
+    else if ( e->state() == ControlButton &&
+              (e->key() == Key_Return || e->key() == Key_Enter) &&
+              topLevelWidget()->inherits( "KDialog" ) )
+    {
+        e->ignore();
+        return;
+    }
+    
+    QTextEdit::keyPressEvent( e );
+}
+
+void KTextEdit::deleteWordBack()
+{
+    removeSelection();
+    moveCursor( MoveWordBackward, true );
+    removeSelectedText();
+}
+
+void KTextEdit::deleteWordForward()
+{
+    removeSelection();
+    moveCursor( MoveWordForward, true );
+    removeSelectedText();
+}
+
+void KTextEdit::slotAllowTab()
+{
+setTabChangesFocus(!tabChangesFocus());
+}
+
+QPopupMenu *KTextEdit::createPopupMenu( const QPoint &pos )
+{
+    enum { IdUndo, IdRedo, IdSep1, IdCut, IdCopy, IdPaste, IdClear, IdSep2, IdSelectAll };
+
+    QPopupMenu *menu = QTextEdit::createPopupMenu( pos );
+
+    if ( isReadOnly() )
+      menu->changeItem( menu->idAt(0), SmallIconSet("editcopy"), menu->text( menu->idAt(0) ) );
+    else {
+      int id = menu->idAt(0);
+      menu->changeItem( id - IdUndo, SmallIconSet("undo"), menu->text( id - IdUndo) );
+      menu->changeItem( id - IdRedo, SmallIconSet("redo"), menu->text( id - IdRedo) );
+      menu->changeItem( id - IdCut, SmallIconSet("editcut"), menu->text( id - IdCut) );
+      menu->changeItem( id - IdCopy, SmallIconSet("editcopy"), menu->text( id - IdCopy) );
+      menu->changeItem( id - IdPaste, SmallIconSet("editpaste"), menu->text( id - IdPaste) );
+      menu->changeItem( id - IdClear, SmallIconSet("editclear"), menu->text( id - IdClear) );
+
+        menu->insertSeparator();
+        id = menu->insertItem( SmallIconSet( "spellcheck" ), i18n( "Check Spelling..." ),
+                                   this, SLOT( checkSpelling() ) );
+
+        if( text().isEmpty() )
+            menu->setItemEnabled( id, false );
+
+        id = menu->insertItem( i18n( "Auto Spell Check" ),
+                               this, SLOT( toggleAutoSpellCheck() ) );
+        menu->setItemChecked(id, d->checkSpellingEnabled);
+	menu->insertSeparator();
+	id=menu->insertItem(i18n("Allow Tabulations"),this,SLOT(slotAllowTab()));
+	menu->setItemChecked(id, !tabChangesFocus());
+    }
+
+    return menu;
+}
+
+QPopupMenu *KTextEdit::createPopupMenu()
+{
+    return QTextEdit::createPopupMenu();
+}
+
+void KTextEdit::contentsWheelEvent( QWheelEvent *e )
+{
+    if ( KGlobalSettings::wheelMouseZooms() )
+        QTextEdit::contentsWheelEvent( e );
+    else // thanks, we don't want to zoom, so skip QTextEdit's impl.
+        QScrollView::contentsWheelEvent( e );
+}
+
+void KTextEdit::setPalette( const QPalette& palette )
+{
+    QTextEdit::setPalette( palette );
+    // unsetPalette() is not virtual and calls setPalette() as well
+    // so we can use ownPalette() to find out about unsetting
+    d->customPalette = ownPalette();
+}
+
+void KTextEdit::toggleAutoSpellCheck()
+{
+    setCheckSpellingEnabled( !d->checkSpellingEnabled );
+}
+
+void KTextEdit::setCheckSpellingEnabled( bool check )
+{
+    if ( check == d->checkSpellingEnabled )
+        return;
+
+    // From the above statment we know know that if we're turning checking
+    // on that we need to create a new highlighter and if we're turning it
+    // off we should remove the old one.
+
+    d->checkSpellingEnabled = check;
+    if ( check )
+    {
+        if (hasFocus())
+            d->highlighter = new KDictSpellingHighlighter( this );
+    }
+    else
+    {
+        delete d->highlighter;
+        d->highlighter = 0;
+    }
+}
+
+void KTextEdit::focusInEvent( QFocusEvent *e )
+{
+    if ( d->checkSpellingEnabled && !isReadOnly() && !d->highlighter )
+        d->highlighter = new KDictSpellingHighlighter( this );
+
+    QTextEdit::focusInEvent( e );
+}
+
+bool KTextEdit::checkSpellingEnabled() const
+{
+    return d->checkSpellingEnabled;
+}
+
+void KTextEdit::setReadOnly(bool readOnly)
+{
+    if ( !readOnly && hasFocus() && d->checkSpellingEnabled && !d->highlighter )
+        d->highlighter = new KDictSpellingHighlighter( this );
+	
+    if ( readOnly == isReadOnly() )
+        return;
+
+    if (readOnly)
+    {
+	delete d->highlighter;
+	d->highlighter = 0;
+	    
+        bool custom = ownPalette();
+        QPalette p = palette();
+        QColor color = p.color(QPalette::Disabled, QColorGroup::Background);
+        p.setColor(QColorGroup::Base, color);
+        p.setColor(QColorGroup::Background, color);
+        setPalette(p);
+        d->customPalette = custom;
+    }
+    else
+    {
+        if ( d->customPalette )
+        {
+            QPalette p = palette();
+            QColor color = p.color(QPalette::Normal, QColorGroup::Base);
+            p.setColor(QColorGroup::Base, color);
+            p.setColor(QColorGroup::Background, color);
+            setPalette( p );
+        }
+        else
+            unsetPalette();
+    }
+
+    QTextEdit::setReadOnly (readOnly);
+}
+
+void KTextEdit::virtual_hook( int, void* )
+{ /*BASE::virtual_hook( id, data );*/ }
+
+void KTextEdit::checkSpelling()
+{
+    delete d->spell;
+    d->spell = new KSpell( this, i18n( "Spell Checking" ),
+                          this, SLOT( slotSpellCheckReady( KSpell *) ), 0, true, true);
+
+    connect( d->spell, SIGNAL( death() ),
+             this, SLOT( spellCheckerFinished() ) );
+
+    connect( d->spell, SIGNAL( misspelling( const QString &, const QStringList &, unsigned int ) ),
+             this, SLOT( spellCheckerMisspelling( const QString &, const QStringList &, unsigned int ) ) );
+
+    connect( d->spell, SIGNAL( corrected( const QString &, const QString &, unsigned int ) ),
+             this, SLOT( spellCheckerCorrected( const QString &, const QString &, unsigned int ) ) );
+}
+
+void KTextEdit::spellCheckerMisspelling( const QString &text, const QStringList &, unsigned int pos )
+{
+    highLightWord( text.length(), pos );
+}
+
+void KTextEdit::spellCheckerCorrected( const QString &oldWord, const QString &newWord, unsigned int pos )
+{
+    unsigned int l = 0;
+    unsigned int cnt = 0;
+    if ( oldWord != newWord ) {
+        posToRowCol( pos, l, cnt );
+        setSelection( l, cnt, l, cnt + oldWord.length() );
+        removeSelectedText();
+        insert( newWord );
+    }
+}
+
+void KTextEdit::posToRowCol(unsigned int pos, unsigned int &line, unsigned int &col)
+{
+    for ( line = 0; line < static_cast<uint>( lines() ) && col <= pos; line++ )
+        col += paragraphLength( line ) + 1;
+
+    line--;
+    col = pos - col + paragraphLength( line ) + 1;
+}
+
+void KTextEdit::spellCheckerFinished()
+{
+    delete d->spell;
+    d->spell = 0L;
+}
+
+void KTextEdit::slotSpellCheckReady( KSpell *s )
+{
+    s->check( text() );
+    connect( s, SIGNAL( done( const QString & ) ), this, SLOT( slotSpellCheckDone( const QString & ) ) );
+}
+
+void KTextEdit::slotSpellCheckDone( const QString &s )
+{
+    if ( s != text() )
+        setText( s );
+}
+
+
+void KTextEdit::highLightWord( unsigned int length, unsigned int pos )
+{
+    unsigned int l = 0;
+    unsigned int cnt = 0;
+    posToRowCol( pos, l, cnt );
+    setSelection( l, cnt, l, cnt + length );
+}
+
+#include "ktextedit.moc"