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2270 lines
56 KiB
2270 lines
56 KiB
/* This file is part of the KDE project
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Copyright (C) 2001 Simon Hausmann <hausmann@kde.org>
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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 as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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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 "kstextview.h"
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#include "stringparserstate.h"
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#include <tqpainter.h>
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#include <tqvaluestack.h>
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#include <tqdragobject.h>
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#include <tqtimer.h>
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#include <tqclipboard.h>
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#include <tqdict.h>
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#include <kcharsets.h>
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#include <kapplication.h>
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#include <kmimesourcefactory.h>
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#include <kcursor.h>
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#include <kurldrag.h>
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#include <kdebug.h>
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#include <assert.h>
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using namespace KSirc;
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typedef StringParserState<TQChar> ParsingState;
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static const int PaintBufferExtend = 128;
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// temporary(!)
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static TQDict<TQPixmap> *ksTextViewPixmapDict = 0;
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static void cleanupKSTextViewPixmapDict()
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{
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delete ksTextViewPixmapDict;
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ksTextViewPixmapDict = 0;
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}
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TQPixmap ksTextViewLoadPixmap( const TQString &icon )
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{
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if ( !ksTextViewPixmapDict )
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{
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ksTextViewPixmapDict = new TQDict<TQPixmap>;
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ksTextViewPixmapDict->setAutoDelete( true );
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tqAddPostRoutine( cleanupKSTextViewPixmapDict );
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}
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TQPixmap *pix = ksTextViewPixmapDict->find( icon );
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if ( !pix )
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{
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TQImage img;
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const TQMimeSource *src = kapp->mimeSourceFactory()->data( icon, TQString() );
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if ( !src || !TQImageDrag::decode( src, img ) || img.isNull() )
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return TQPixmap();
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pix = new TQPixmap( img );
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ksTextViewPixmapDict->insert( icon, pix );
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}
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return *pix;
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}
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Item::Item( TextParag *parag, const ItemProperties &props )
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: m_extendsDirty( true ), m_minWidth( -1 ), m_width( - 1 ),
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m_height( - 1 ), m_selection( NoSelection ), m_line( 0 ),
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m_parag( parag ), m_props( props )
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{
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}
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Item::~Item()
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{
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}
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int Item::width() const
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{
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if ( m_extendsDirty )
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{
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calcExtends();
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m_extendsDirty = false;
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}
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return m_width;
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}
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int Item::minWidth() const
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{
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if ( m_extendsDirty )
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{
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calcExtends();
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m_extendsDirty = false;
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}
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return m_minWidth;
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}
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int Item::height() const
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{
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if ( m_extendsDirty )
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{
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calcExtends();
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m_extendsDirty = false;
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}
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return m_height;
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}
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Item *Item::breakLine( int )
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{
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return 0; // can't break by default...
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}
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int Item::calcSelectionOffset( int x )
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{
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return x; // default ...
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}
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void Item::selectionOffsets( int &startOffset, int &endOffset )
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{
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m_parag->textView()->selectionOffsets( startOffset, endOffset );
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}
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int Item::maxSelectionOffset() const
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{
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return text().len - 1;
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}
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StringPtr Item::text() const
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{
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return StringPtr();
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}
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void Item::setProps( const ItemProperties &props )
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{
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m_props = props;
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m_extendsDirty = true;
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}
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Item *Item::create( TextParag *parag, const Token &tok, const ItemProperties &props )
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{
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assert( tok.id != Token::TagClose );
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if ( tok.id == Token::Text )
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return new TextChunk( parag, tok.value, props );
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if ( tok.value == "img" )
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{
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TQString url = CONSTSTRING( tok.attributes[ "src" ] );
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if ( url.isEmpty() )
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return 0;
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TQPixmap pixmap = ksTextViewLoadPixmap( url );
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if ( pixmap.isNull() )
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return 0;
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return new ImageItem( parag, pixmap );
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}
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return 0;
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}
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void Item::setLine(TextLine *line)
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{
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m_line = line;
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}
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TextChunk::TextChunk( TextParag *parag, const StringPtr &text, const ItemProperties &props )
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: Item( parag, props ), m_text( text ), m_originalTextLength( text.len ),
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m_metrics( props.font ), m_parent(0)
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{
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}
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void TextChunk::paint( TQPainter &p )
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{
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p.setFont( m_props.font );
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if ( m_selection == NoSelection )
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paintText( p, 0, m_text );
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else
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paintSelection( p );
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}
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Item *TextChunk::breakLine( int width )
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{
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ParsingState state( m_text.ptr, m_text.len );
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const int requestedWidth = width;
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const int spaceWidth = m_metrics.width( ' ' );
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state.skip( ' ' );
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if ( state.atEnd() ) // eh?
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return 0;
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StringPtr firstWord; firstWord.ptr = state.current();
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firstWord.len = state.advanceTo( ' ' );
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const int firstWordWidth = m_metrics.width( CONSTSTRING( firstWord ) );
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if ( !state.atBegin() ) // some leading spaces?
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width -= spaceWidth;
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width -= firstWordWidth;
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if ( width < 0 ) {
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StringPtr rightHandSide = breakInTheMiddle( requestedWidth );
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if ( rightHandSide.isNull() )
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return 0;
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return hardBreak( rightHandSide );
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}
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while ( !state.atEnd() )
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{
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bool spaceSeen = state.skip( ' ' ) > 0;
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if ( state.atEnd() )
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break;
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StringPtr word; word.ptr = state.current();
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word.len = state.advanceTo( ' ' );
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const int wordWidth = m_metrics.width( CONSTSTRING( word ) );
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if ( spaceSeen )
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{
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width -= spaceWidth;
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spaceSeen = false;
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}
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width -= wordWidth;
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if ( width > 0 )
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continue;
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StringPtr split( word.ptr, state.end() - word.ptr );
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return hardBreak( split );
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}
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return 0;
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}
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Item::LayoutResetStatus TextChunk::resetLayout()
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{
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if ( m_originalTextLength == 0 )
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{
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if ( m_parent )
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{
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if ( m_selection == SelectionStart )
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m_parent->mergeSelection( this, m_parag->textView()->selectionStart() );
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else if ( m_selection == SelectionEnd )
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m_parent->mergeSelection( this, m_parag->textView()->selectionEnd() );
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else if ( m_selection == SelectionBoth )
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{
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m_parent->mergeSelection( this, m_parag->textView()->selectionStart() );
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m_parent->mergeSelection( this, m_parag->textView()->selectionEnd() );
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}
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}
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return DeleteItem;
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}
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m_extendsDirty |= ( m_text.len != m_originalTextLength );
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m_text.len = m_originalTextLength;
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return KeepItem;
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}
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int TextChunk::calcSelectionOffset( int x )
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{
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// ### how to optimize?
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TQConstString tmp( m_text.ptr, m_text.len );
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const TQString &s = tmp.string();
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uint i = 0;
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int px = 0;
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for (; i < m_text.len; ++i )
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{
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const int partialWidth = m_metrics.width( s, i + 1 );
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if ( px <= x && x <= partialWidth )
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return i;
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px = partialWidth;
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}
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kdDebug(5008) << "calcSelectionOffset bug width:" << width() << " partialWidth: " << m_metrics.width( s, i + 1 )<< endl;
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//assert( false );
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return m_text.len-1;
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}
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StringPtr TextChunk::text() const
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{
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return m_text;
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}
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void TextChunk::setProps( const ItemProperties &props )
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{
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Item::setProps( props );
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m_metrics = TQFontMetrics( props.font );
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}
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void TextChunk::calcExtends() const
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{
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TQConstString tmp( m_text.ptr, m_text.len );
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const TQString &text = tmp.string();
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m_width = m_metrics.width( text );
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m_height = m_metrics.lineSpacing();
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//m_minWidth = 0;
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m_minWidth = m_metrics.charWidth( text, 1 );
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/*
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ParsingState state( m_text.ptr, m_text.len );
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state.skip( ' ' );
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if ( state.atEnd() ) // eh?
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return;
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StringPtr firstWord; firstWord.ptr = state.current();
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firstWord.len = state.advanceTo( ' ' );
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m_minWidth = m_metrics.width( CONSTSTRING( firstWord ) );
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*/
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}
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StringPtr TextChunk::breakInTheMiddle( int width )
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{
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TQConstString tmp( m_text.ptr, m_text.len );
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const TQString &s = tmp.string();
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uint i = 0;
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for (; i < m_text.len; ++i )
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{
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const int partialWidth = m_metrics.width( s, i + 1 );
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if ( partialWidth >= width ) {
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if ( i == 0 )
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return StringPtr();
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return StringPtr( m_text.ptr + i, m_text.len - i );
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}
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}
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return StringPtr();
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}
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Item *TextChunk::hardBreak( const StringPtr &rightHandSide )
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{
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TextChunk *chunk = new TextChunk( m_parag, rightHandSide, m_props );
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chunk->m_originalTextLength = 0; // ### hack... You make the last line dynamic so if it's 1 word it doesn't chop itself up
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if(m_parent == 0x0)
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chunk->m_parent = this;
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else
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chunk->m_parent = m_parent;
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m_text.len = rightHandSide.ptr - m_text.ptr;
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m_extendsDirty = true;
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SelectionPoint *selection = 0;
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if ( m_selection == SelectionStart )
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selection = m_parag->textView()->selectionStart();
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else if ( m_selection == SelectionEnd )
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selection = m_parag->textView()->selectionEnd();
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else if ( m_selection == SelectionBoth ) {
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SelectionPoint *selStart = m_parag->textView()->selectionStart();
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SelectionPoint *selEnd = m_parag->textView()->selectionEnd();
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if ( selStart->offset >= m_text.len ) {
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selStart->offset -= m_text.len;
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selEnd->offset -= m_text.len;
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selStart->item = selEnd->item = chunk;
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chunk->setSelectionStatus( m_selection );
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m_selection = NoSelection;
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} else if ( selEnd->offset >= m_text.len ) {
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selEnd->offset -= m_text.len;
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selEnd->item = chunk;
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chunk->setSelectionStatus( SelectionEnd );
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m_selection = SelectionStart;
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}
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}
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if ( selection && selection->offset >= m_text.len ) {
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selection->offset -= m_text.len;
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selection->item = chunk;
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chunk->setSelectionStatus( m_selection );
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m_selection = NoSelection;
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}
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return chunk;
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}
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void TextChunk::paintSelection( TQPainter &p )
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{
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int selectionStart = 0;
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int selectionEnd = 0;
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selectionOffsets( selectionStart, selectionEnd );
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if ( m_selection == SelectionStart )
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{
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const int width = paintText( p, 0, StringPtr( m_text.ptr, selectionStart ) );
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paintSelection( p, width, StringPtr( m_text.ptr + selectionStart,
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m_text.len - selectionStart ) );
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}
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else if ( m_selection == InSelection )
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paintSelection( p, 0, m_text );
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else if ( m_selection == SelectionEnd )
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{
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const int width = paintSelection( p, 0, StringPtr( m_text.ptr, selectionEnd + 1 ) );
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paintText( p, width, StringPtr( m_text.ptr + selectionEnd + 1,
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m_text.len - selectionEnd - 1 ) );
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}
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else if ( m_selection == SelectionBoth )
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{
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int width = paintText( p, 0, StringPtr( m_text.ptr, selectionStart ) );
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width += paintSelection( p, width, StringPtr( m_text.ptr + selectionStart,
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selectionEnd - selectionStart + 1 ) );
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paintText( p, width, StringPtr( m_text.ptr + selectionEnd + 1,
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m_text.len - selectionEnd - 1 ) );
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}
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}
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int TextChunk::paintSelection( TQPainter &p, int x, const StringPtr &text )
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{
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TQConstString constString( text.ptr, text.len );
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const TQString &str = constString.string();
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const int width = m_metrics.width( str );
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const TQColorGroup &cg = m_parag->textView()->colorGroup();
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if (m_props.bgSelColor.isValid())
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p.fillRect( x, 0, width, height(), m_props.bgSelColor );
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else
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p.fillRect( x, 0, width, height(), cg.highlight() );
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if (m_props.selColor.isValid())
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p.setPen( m_props.selColor );
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else
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p.setPen( cg.highlightedText() );
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p.drawText( x, m_metrics.ascent(), str );
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return width;
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}
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int TextChunk::paintText( TQPainter &p, int x, const StringPtr &text )
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{
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TQConstString constString( text.ptr, text.len );
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const TQString &str = constString.string();
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const int width = m_metrics.width( str );
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if ( m_props.bgColor.isValid() )
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p.fillRect( x, 0, width, height(), m_props.bgColor );
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if ( m_props.color.isValid() )
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p.setPen( m_props.color );
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else
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p.setPen( m_parag->textView()->foregroundColor() );
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p.drawText( x, m_metrics.ascent(), str );
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return width;
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}
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|
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void TextChunk::mergeSelection( TextChunk *child, SelectionPoint *selection )
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{
|
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selection->offset += child->m_text.ptr - m_text.ptr;
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if(selection->offset > m_originalTextLength){
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kdDebug(5008) << "Child: " << child->m_text.toTQString() << " Parent: " << m_text.toTQString() << endl;
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kdDebug(5008) << "Length all wrong!" << endl;
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//assert(0);
|
|
}
|
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|
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selection->item = this;
|
|
|
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if ( ( m_selection == SelectionStart && child->selectionStatus() == SelectionEnd ) ||
|
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( m_selection == SelectionEnd && child->selectionStatus() == SelectionStart ) )
|
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m_selection = SelectionBoth;
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else
|
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m_selection = child->selectionStatus();
|
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}
|
|
|
|
ImageItem::ImageItem( TextParag *parag, const TQPixmap &pixmap )
|
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: Item( parag ), m_pixmap( pixmap )
|
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{
|
|
}
|
|
|
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void ImageItem::paint( TQPainter &painter )
|
|
{
|
|
int y = 0;
|
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if(m_line) {
|
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y = (m_line->maxHeight() - m_pixmap.height())/2;
|
|
}
|
|
|
|
if ( m_selection != NoSelection ) {
|
|
int h;
|
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|
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if(m_line)
|
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h = m_line->maxHeight();
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|
else
|
|
h = height();
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|
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if (m_props.bgSelColor.isValid())
|
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painter.fillRect( 0, 0, width(), h, m_props.bgSelColor );
|
|
else {
|
|
const TQColorGroup &cg = m_parag->textView()->colorGroup();
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painter.fillRect( 0, 0, width(), h, cg.highlight() );
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}
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}
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|
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painter.drawPixmap( 0, y, m_pixmap );
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}
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|
|
Item::LayoutResetStatus ImageItem::resetLayout()
|
|
{
|
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// nothin' to do
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return KeepItem;
|
|
}
|
|
|
|
void ImageItem::calcExtends() const
|
|
{
|
|
m_width = m_minWidth = m_pixmap.width();
|
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m_height = m_pixmap.height();
|
|
}
|
|
|
|
Tokenizer::Tokenizer( PString &text )
|
|
: m_text( text.data ), m_tags( text.tags ),
|
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m_textBeforeFirstTagProcessed( false ), m_done( false )
|
|
{
|
|
//tqDebug( "Tokenizer::Tokenizer( %s )", m_text.ascii() );
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|
|
m_lastTag = m_tags.begin();
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|
|
if ( !m_tags.isEmpty() ) {
|
|
if ( ( *m_tags.begin() ).type != TagIndex::Open ) {
|
|
tqDebug( "something went awfully wrong! bailing out with an assertion" );
|
|
tqDebug( "text input was: %s", text.data.ascii() );
|
|
}
|
|
assert( ( *m_tags.begin() ).type == TagIndex::Open );
|
|
}
|
|
}
|
|
|
|
Tokenizer::PString Tokenizer::preprocess( const TQString &richText )
|
|
{
|
|
PString result;
|
|
result.data = richText;
|
|
result.tags = scanTagIndices( result.data );
|
|
resolveEntities( result.data, result.tags );
|
|
return result;
|
|
}
|
|
|
|
TQString Tokenizer::convertToRichText( const PString &ptext )
|
|
{
|
|
if ( ptext.tags.isEmpty() )
|
|
return ptext.data;
|
|
|
|
TQString result = ptext.data;
|
|
uint i = 0;
|
|
TagIndexList tags = ptext.tags;
|
|
TagIndexList::Iterator it = tags.begin();
|
|
TagIndexList::Iterator end = tags.end();
|
|
|
|
for (; i < result.length(); ++i )
|
|
{
|
|
if ( it != end && i == (*it).index )
|
|
{
|
|
++it;
|
|
continue;
|
|
}
|
|
|
|
unsigned short indexAdjustment = 0;
|
|
const TQChar ch = result[ i ];
|
|
// ### incomplete!
|
|
/* this doesn't work quite right (when resolving back
|
|
* KCharSet's fromEntity breaks)
|
|
if ( ch == '<' || ch == '>' || ch == '&' )
|
|
{
|
|
TQString entity = KGlobal::charsets()->toEntity( ch );
|
|
indexAdjustment = entity.length() - 1;
|
|
result.replace( i, 1, entity );
|
|
}
|
|
*/
|
|
if ( ch == '<' )
|
|
{
|
|
result.replace( i, 1, "<" );
|
|
indexAdjustment = 3;
|
|
}
|
|
else if ( ch == '>' )
|
|
{
|
|
result.replace( i, 1, ">" );
|
|
indexAdjustment = 3;
|
|
}
|
|
else if ( ch == '&' )
|
|
{
|
|
result.replace( i, 1, "&" );
|
|
indexAdjustment = 4;
|
|
}
|
|
|
|
if ( indexAdjustment > 0 )
|
|
{
|
|
TagIndexList::Iterator tmpIt = it;
|
|
for (; tmpIt != end; ++tmpIt )
|
|
(*tmpIt).index += indexAdjustment;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool Tokenizer::parseNextToken( Token &tok )
|
|
{
|
|
if ( m_done )
|
|
{
|
|
//tqDebug( "Tokenizer: premature end" );
|
|
return false;
|
|
}
|
|
|
|
if ( m_tags.isEmpty() )
|
|
{
|
|
tok.id = Token::Text;
|
|
tok.attributes.clear();
|
|
tok.value = StringPtr( m_text );
|
|
m_done = true;
|
|
return true;
|
|
}
|
|
|
|
TagIndexList::ConstIterator it = m_lastTag;
|
|
++it;
|
|
|
|
if ( it == m_tags.end() )
|
|
{
|
|
m_done = true;
|
|
|
|
const uint idx = (*m_lastTag).index + 1;
|
|
if ( idx >= m_text.length() )
|
|
return false;
|
|
|
|
tok.id = Token::Text;
|
|
tok.value = StringPtr( m_text.unicode() + idx,
|
|
m_text.length() - idx );
|
|
tok.attributes.clear();
|
|
return true;
|
|
}
|
|
|
|
// text before first tag opening?
|
|
if ( m_lastTag == m_tags.begin() &&
|
|
(*m_lastTag).index > 0 &&
|
|
!m_textBeforeFirstTagProcessed )
|
|
{
|
|
tok.id = Token::Text;
|
|
tok.attributes.clear();
|
|
tok.value = StringPtr( m_text.unicode(),
|
|
(*m_lastTag).index );
|
|
|
|
m_textBeforeFirstTagProcessed = true;
|
|
return true;
|
|
}
|
|
|
|
const uint index = (*it).index;
|
|
const int type = (*it).type;
|
|
const uint lastIndex = (*m_lastTag).index;
|
|
const uint lastType = (*m_lastTag).type;
|
|
|
|
assert( lastIndex < index );
|
|
|
|
// a tag
|
|
if ( lastType == TagIndex::Open &&
|
|
type == TagIndex::Close )
|
|
{
|
|
const TQChar *tagStart = m_text.unicode() + lastIndex + 1;
|
|
uint tagLen = ( index - 1 ) - ( lastIndex + 1 ) + 1;
|
|
// </bleh> ?
|
|
if ( *tagStart == '/' )
|
|
{
|
|
++tagStart;
|
|
--tagLen;
|
|
tok.id = Token::TagClose;
|
|
}
|
|
else
|
|
tok.id = Token::TagOpen;
|
|
|
|
parseTag( StringPtr( tagStart, tagLen ), tok.value, tok.attributes );
|
|
|
|
m_lastTag = it;
|
|
return true;
|
|
}
|
|
// text
|
|
else if ( lastType == TagIndex::Close &&
|
|
type == TagIndex::Open )
|
|
{
|
|
tok.id = Token::Text;
|
|
tok.attributes.clear();
|
|
tok.value = StringPtr( m_text.unicode() + lastIndex + 1,
|
|
( index - 1 ) - lastIndex );
|
|
|
|
m_lastTag = it;
|
|
return true;
|
|
}
|
|
else {
|
|
tqDebug( "EEK, this should never happen. input text was: %s", m_text.ascii() );
|
|
assert( false );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Tokenizer::TagIndexList Tokenizer::scanTagIndices( const TQString &text )
|
|
{
|
|
const TQChar *start = text.unicode();
|
|
const TQChar *p = start;
|
|
const TQChar *endP = p + text.length();
|
|
bool quoted = false;
|
|
bool inTag = false;
|
|
|
|
TagIndexList tags;
|
|
|
|
for (; p < endP; ++p )
|
|
{
|
|
const TQChar ch = *p;
|
|
if ( ch == '"' && inTag )
|
|
{
|
|
quoted = quoted ? false : true;
|
|
continue;
|
|
}
|
|
|
|
if( quoted )
|
|
continue;
|
|
|
|
if ( ch == '<' )
|
|
{
|
|
inTag = true;
|
|
tags.append( TagIndex( p - start, TagIndex::Open ) );
|
|
continue;
|
|
}
|
|
else if ( ch == '>' )
|
|
{
|
|
inTag = false;
|
|
tags.append( TagIndex( p - start, TagIndex::Close ) );
|
|
continue;
|
|
}
|
|
}
|
|
|
|
return tags;
|
|
}
|
|
|
|
void Tokenizer::resolveEntities( TQString &text, TagIndexList &tags )
|
|
{
|
|
const TQChar *p = text.unicode();
|
|
const TQChar *endP = p + text.length();
|
|
uint i = 0;
|
|
bool scanForSemicolon = false;
|
|
const TQChar *ampersand = 0;
|
|
TagIndexList::Iterator tagInfoIt = tags.begin();
|
|
TagIndexList::Iterator tagsEnd = tags.end();
|
|
|
|
for (; p < endP; ++p, ++i )
|
|
{
|
|
if ( tagInfoIt != tagsEnd &&
|
|
i > (*tagInfoIt).index )
|
|
++tagInfoIt;
|
|
|
|
const TQChar ch = *p;
|
|
|
|
if ( ch == '&' ) {
|
|
ampersand = p;
|
|
scanForSemicolon = true;
|
|
continue;
|
|
}
|
|
|
|
if ( ch != ';' || !scanForSemicolon )
|
|
continue;
|
|
|
|
assert( ampersand );
|
|
|
|
scanForSemicolon = false;
|
|
|
|
const TQChar *entityBegin = ampersand + 1;
|
|
|
|
const uint entityLength = p - entityBegin;
|
|
if ( entityLength == 0 )
|
|
continue;
|
|
|
|
const TQChar entityValue = KCharsets::fromEntity( TQConstString( entityBegin, entityLength ).string() );
|
|
if ( entityValue.isNull() )
|
|
continue;
|
|
|
|
const uint ampersandPos = ampersand - text.unicode();
|
|
|
|
text[ ampersandPos ] = entityValue;
|
|
text.remove( ampersandPos + 1, entityLength + 1 );
|
|
i = ampersandPos;
|
|
p = text.unicode() + i;
|
|
endP = text.unicode() + text.length();
|
|
ampersand = 0;
|
|
|
|
uint adjustment = entityLength + 1;
|
|
TagIndexList::Iterator it = tagInfoIt;
|
|
for (; it != tags.end(); ++it )
|
|
(*it).index -= adjustment;
|
|
}
|
|
}
|
|
|
|
void Tokenizer::parseTag( const StringPtr &text,
|
|
StringPtr &tag,
|
|
AttributeMap &attributes )
|
|
{
|
|
assert( text.len > 0 );
|
|
|
|
attributes.clear();
|
|
tag = StringPtr();
|
|
|
|
const TQChar *p = text.ptr;
|
|
const TQChar *endP = p + text.len;
|
|
const TQChar *start = p;
|
|
|
|
int state = ScanForName;
|
|
|
|
StringPtr key;
|
|
|
|
while ( p < endP )
|
|
{
|
|
const TQChar ch = *p;
|
|
|
|
if ( ch == ' ' )
|
|
{
|
|
start = ++p;
|
|
continue;
|
|
}
|
|
|
|
if ( state == ScanForEqual )
|
|
{
|
|
if ( ch == '=' )
|
|
{
|
|
state = ScanForValue;
|
|
++p;
|
|
continue;
|
|
}
|
|
state = ScanForName;
|
|
}
|
|
|
|
if ( state == ScanForValue )
|
|
{
|
|
if ( ch == '=' ) // eh?
|
|
{
|
|
tqDebug( "EH?" );
|
|
++p;
|
|
continue;
|
|
}
|
|
|
|
if ( key.isNull() )
|
|
{
|
|
tqDebug( "Tokenizer: Error, attribute value without key." );
|
|
// reset
|
|
state = ScanForName;
|
|
++p;
|
|
continue;
|
|
}
|
|
|
|
start = 0x0;
|
|
if ( *p == '"' )
|
|
{
|
|
++p;
|
|
start = p;
|
|
while ( p < endP && *p != '"' ) {
|
|
++p;
|
|
}
|
|
}
|
|
else {
|
|
while ( p < endP && *p != ' ' && *p != '>') {
|
|
if(!start)
|
|
start = p;
|
|
++p;
|
|
}
|
|
}
|
|
|
|
if(start == 0x0) {
|
|
state = ScanForName;
|
|
tqDebug( "Never found start \" in tag." );
|
|
++p;
|
|
continue;
|
|
}
|
|
|
|
const TQChar *valueEnd = p;
|
|
|
|
StringPtr value = StringPtr( start, valueEnd - start );
|
|
attributes[ key ] = value;
|
|
|
|
if(*p == '"')
|
|
++p; // move p beyond the last "
|
|
state = ScanForName;
|
|
continue;
|
|
}
|
|
|
|
if ( state == ScanForName )
|
|
{
|
|
while ( p < endP && *p != ' ' && *p != '=' ){
|
|
++p;
|
|
}
|
|
|
|
key = StringPtr( start, p - start );
|
|
|
|
if ( tag.isNull() )
|
|
tag = key;
|
|
else
|
|
attributes[ key ] = StringPtr();
|
|
|
|
state = ScanForEqual;
|
|
continue;
|
|
}
|
|
|
|
assert( false ); // never reached.
|
|
}
|
|
|
|
/*
|
|
kdDebug(5008) << "tagName: " << tag.toTQString() << endl;
|
|
AttributeMap::ConstIterator it = attributes.begin();
|
|
for (; it != attributes.end(); ++it )
|
|
kdDebug(5008) << "attribute: " << it.key().toTQString() <<
|
|
" -> " << it.data().toTQString() << endl;
|
|
*/
|
|
}
|
|
|
|
ItemProperties::ItemProperties()
|
|
: reversed( false )
|
|
{
|
|
}
|
|
|
|
ItemProperties::ItemProperties( const TQFont &defaultFont )
|
|
: font( defaultFont ), reversed( false )
|
|
{
|
|
}
|
|
|
|
ItemProperties::ItemProperties( const ItemProperties &other,
|
|
const Token &token,
|
|
TextView *textView )
|
|
: attributes( token.attributes )
|
|
{
|
|
// inherit
|
|
font = other.font;
|
|
color = other.color;
|
|
bgColor = other.bgColor;
|
|
bgSelColor = other.bgSelColor;
|
|
selColor = other.selColor;
|
|
reversed = other.reversed;
|
|
|
|
if ( token.value == "b" )
|
|
font.setBold( true );
|
|
else if ( token.value == "i" )
|
|
font.setItalic( true );
|
|
else if ( token.value == "u" )
|
|
font.setUnderline( true );
|
|
else if ( token.value == "r" ) {
|
|
reversed = true;
|
|
if(other.bgColor.isValid())
|
|
color = other.bgColor;
|
|
else
|
|
color = textView->paletteBackgroundColor();
|
|
|
|
if(other.color.isValid())
|
|
bgColor = other.color;
|
|
else
|
|
bgColor = textView->foregroundColor();
|
|
}
|
|
else if ( token.value == "font" )
|
|
{
|
|
StringPtr colAttr = attributes[ "color" ];
|
|
if ( !colAttr.isNull() )
|
|
{
|
|
TQColor col( CONSTSTRING( colAttr ) );
|
|
if ( col.isValid() ){
|
|
if(!reversed)
|
|
color = col;
|
|
else
|
|
bgColor = col;
|
|
}
|
|
}
|
|
colAttr = attributes[ "bgcolor" ];
|
|
if ( !colAttr.isNull() )
|
|
{
|
|
TQColor col( CONSTSTRING( colAttr ) );
|
|
if ( col.isValid() ) {
|
|
if(!reversed)
|
|
bgColor = col;
|
|
else
|
|
color = col;
|
|
}
|
|
}
|
|
}
|
|
else if ( token.value == "a" )
|
|
{
|
|
color = textView->linkColor();
|
|
font.setUnderline( true );
|
|
}
|
|
}
|
|
|
|
ItemProperties::ItemProperties( const ItemProperties &rhs )
|
|
{
|
|
( *this ) = rhs;
|
|
}
|
|
|
|
ItemProperties &ItemProperties::operator=( const ItemProperties &rhs )
|
|
{
|
|
font = rhs.font;
|
|
color = rhs.color;
|
|
bgColor = rhs.bgColor;
|
|
bgSelColor = rhs.bgSelColor;
|
|
selColor = rhs.selColor;
|
|
reversed = rhs.reversed;
|
|
attributes = rhs.attributes;
|
|
return *this;
|
|
}
|
|
|
|
void ItemProperties::updateFont( const TQFont &newFont )
|
|
{
|
|
TQFont f = newFont;
|
|
f.setUnderline( font.underline() );
|
|
f.setBold( font.bold() );
|
|
f.setItalic( font.italic() );
|
|
font = f;
|
|
}
|
|
|
|
TextLine::TextLine()
|
|
: m_maxHeight( 0 )
|
|
{
|
|
m_items.setAutoDelete( true );
|
|
}
|
|
|
|
TextLine::TextLine( const TQPtrList<Item> &items )
|
|
: m_maxHeight( 0 )
|
|
{
|
|
m_items.setAutoDelete( true );
|
|
|
|
assert( !items.autoDelete() );
|
|
|
|
TQPtrListIterator<Item> it( items );
|
|
for (; it.current(); ++it )
|
|
appendItem( it.current(), UpdateMaxHeight );
|
|
}
|
|
|
|
TQString TextLine::updateSelection( const SelectionPoint &start, const SelectionPoint &end )
|
|
{
|
|
TQString selectedText;
|
|
|
|
// fixes a crash where because of an empty list i becomes null
|
|
if ( m_items.isEmpty() )
|
|
return TQString();
|
|
|
|
if ( start.line == this )
|
|
{
|
|
const int idx = m_items.findRef( start.item );
|
|
assert( idx != -1 );
|
|
}
|
|
else
|
|
m_items.first();
|
|
|
|
Item *i = m_items.current();
|
|
|
|
Item *lastItem = 0;
|
|
|
|
if ( end.line == this )
|
|
{
|
|
const int oldCurrent = m_items.at();
|
|
|
|
const int idx = m_items.findRef( end.item );
|
|
assert( idx != -1 );
|
|
lastItem = m_items.next();
|
|
|
|
m_items.at( oldCurrent );
|
|
}
|
|
|
|
for (; i != lastItem && i!=0L; i = m_items.next() )
|
|
{
|
|
if ( i == start.item )
|
|
{
|
|
i->setSelectionStatus( Item::SelectionStart );
|
|
|
|
StringPtr txt = i->text();
|
|
if ( !txt.isNull() )
|
|
selectedText += TQString( txt.ptr + start.offset,
|
|
txt.len - start.offset );
|
|
}
|
|
else if ( i == end.item )
|
|
{
|
|
i->setSelectionStatus( Item::SelectionEnd );
|
|
|
|
StringPtr txt = i->text();
|
|
if ( !txt.isNull() )
|
|
selectedText += TQString( txt.ptr, end.offset + 1 );
|
|
}
|
|
else
|
|
{
|
|
i->setSelectionStatus( Item::InSelection );
|
|
|
|
selectedText += i->text().toTQString();
|
|
}
|
|
}
|
|
|
|
return selectedText;
|
|
}
|
|
|
|
void TextLine::clearSelection()
|
|
{
|
|
Item *i = m_items.first();
|
|
for (; i; i = m_items.next() )
|
|
i->setSelectionStatus( Item::NoSelection );
|
|
}
|
|
|
|
void TextLine::appendItem( Item *i, int layoutUpdatePolicy )
|
|
{
|
|
m_items.append( i );
|
|
i->setLine(this);
|
|
|
|
if ( layoutUpdatePolicy == UpdateMaxHeight )
|
|
m_maxHeight = kMax( m_maxHeight, i->height() );
|
|
}
|
|
|
|
Item *TextLine::resetLayout( TQPtrList<Item> &remainingItems)
|
|
{
|
|
Item *lastLineItem = m_items.getLast();
|
|
Item *it = m_items.first();
|
|
// We have to use the tobeDel structure or we call resetLayout on the Item
|
|
// twice for each item we want to delete
|
|
TQPtrList<Item> tobeDel;
|
|
while ( it )
|
|
{
|
|
if ( it->resetLayout() == Item::KeepItem )
|
|
remainingItems.append( m_items.take() );
|
|
else
|
|
tobeDel.append( m_items.take() );
|
|
|
|
it = m_items.current();
|
|
}
|
|
m_items = tobeDel;
|
|
return lastLineItem;
|
|
}
|
|
|
|
void TextLine::paint( TQPainter &p, int y )
|
|
{
|
|
TQPtrListIterator<Item> it( m_items );
|
|
int x = 0;
|
|
for (; it.current(); ++it )
|
|
{
|
|
p.translate( x, y );
|
|
it.current()->paint( p );
|
|
p.translate( -x, -y );
|
|
x += it.current()->width();
|
|
}
|
|
}
|
|
|
|
Item *TextLine::itemAt( int px, SelectionPoint *selectionInfo,
|
|
Item::SelectionAccuracy accuracy )
|
|
{
|
|
TQPtrListIterator<Item> it( m_items );
|
|
int x = 0;
|
|
int width = 0;
|
|
for (; it.current(); ++it )
|
|
{
|
|
width = it.current()->width();
|
|
if ( x < px && px < ( x + width ) )
|
|
{
|
|
Item *i = it.current();
|
|
if ( selectionInfo )
|
|
{
|
|
selectionInfo->pos.setX( x );
|
|
selectionInfo->offset = i->calcSelectionOffset( px - x );
|
|
selectionInfo->item = i;
|
|
selectionInfo->line = this;
|
|
}
|
|
return i;
|
|
}
|
|
x += width;
|
|
}
|
|
|
|
if ( accuracy == Item::SelectFuzzy && selectionInfo &&
|
|
!m_items.isEmpty() && width > 0 )
|
|
{
|
|
Item *i = m_items.getLast();
|
|
selectionInfo->pos.setX( x - width );
|
|
selectionInfo->offset = i->maxSelectionOffset();
|
|
selectionInfo->item = i;
|
|
selectionInfo->line = this;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
TQString TextLine::plainText() const
|
|
{
|
|
TQString res;
|
|
TQPtrListIterator<Item> it( m_items );
|
|
for (; it.current(); ++it )
|
|
res += it.current()->text().toTQString();
|
|
return res;
|
|
}
|
|
|
|
void TextLine::fontChange( const TQFont &newFont )
|
|
{
|
|
TQPtrListIterator<Item> it( m_items );
|
|
for (; it.current(); ++it )
|
|
{
|
|
ItemProperties props = it.current()->props();
|
|
props.updateFont( newFont );
|
|
it.current()->setProps( props );
|
|
}
|
|
}
|
|
|
|
TextParag::TextParag( TextView *textView, const TQString &richText )
|
|
: m_layouted( false ), m_height( 0 ), m_minWidth( 0 ),
|
|
m_textView( textView )
|
|
{
|
|
setRichText( richText );
|
|
m_lines.setAutoDelete(true);
|
|
}
|
|
|
|
TextParag::~TextParag()
|
|
{
|
|
}
|
|
|
|
void TextParag::layout( int width )
|
|
{
|
|
TQPtrList<Item> items;
|
|
|
|
TextLine *row = m_lines.first();
|
|
|
|
for(;row;row = m_lines.next()){
|
|
row->resetLayout( items );
|
|
}
|
|
|
|
m_lines.clear();
|
|
|
|
// all text chunks are now in a flat list. break them into
|
|
// pieces of lists of chunks, so they fit with the given width
|
|
|
|
m_height = 0;
|
|
m_minWidth = 0;
|
|
|
|
int remainingWidth = width;
|
|
|
|
SelectionPoint *selStart = m_textView->selectionStart();
|
|
SelectionPoint *selEnd = m_textView->selectionEnd();
|
|
assert( selStart && selEnd );
|
|
|
|
TQPtrListIterator<Item> it( items );
|
|
while ( it.current() )
|
|
{
|
|
m_minWidth = kMax( m_minWidth, it.current()->minWidth() );
|
|
|
|
Item *item = it.current();
|
|
int itemWidth = item->width();
|
|
|
|
if ( remainingWidth >= itemWidth )
|
|
{
|
|
remainingWidth -= itemWidth;
|
|
++it;
|
|
continue;
|
|
}
|
|
|
|
Item *newChunk = 0;
|
|
|
|
if ( itemWidth > item->minWidth() )
|
|
newChunk = item->breakLine( remainingWidth );
|
|
|
|
if ( newChunk || it.atFirst() )
|
|
++it;
|
|
|
|
TextLine *line = new TextLine;
|
|
|
|
Item *next = it.current();
|
|
|
|
items.first();
|
|
|
|
while ( items.current() != next )
|
|
{
|
|
Item *i = items.take();
|
|
|
|
if ( selStart->item == i )
|
|
selStart->line = line;
|
|
else if ( selEnd->item == i )
|
|
selEnd->line = line;
|
|
|
|
line->appendItem( i, TextLine::UpdateMaxHeight );
|
|
}
|
|
|
|
assert( !line->isEmpty() );
|
|
|
|
m_height += line->maxHeight();
|
|
m_lines.append( line );
|
|
|
|
if ( newChunk )
|
|
items.prepend( newChunk );
|
|
|
|
it.toFirst();
|
|
remainingWidth = width;
|
|
}
|
|
|
|
// append what's left
|
|
if ( items.count() > 0 )
|
|
{
|
|
TextLine *line = new TextLine( items );
|
|
m_height += line->maxHeight();
|
|
m_lines.append( line );
|
|
|
|
if ( selStart->parag == this ||
|
|
selEnd->parag == this )
|
|
{
|
|
// ### move to TextLine?
|
|
TQPtrListIterator<Item> it( line->iterator() );
|
|
for (; it.current(); ++it )
|
|
{
|
|
if ( selStart->item == it.current() )
|
|
selStart->line = line;
|
|
if ( selEnd->item == it.current() )
|
|
selEnd->line = line;
|
|
}
|
|
}
|
|
}
|
|
|
|
m_layouted = true;
|
|
}
|
|
|
|
void TextParag::paint( TQPainter &p, int y, int maxY )
|
|
{
|
|
TextLine *row = m_lines.first();
|
|
for (; row; row = m_lines.next() )
|
|
{
|
|
if( (y + row->maxHeight()) >= 0 )
|
|
row->paint( p, y );
|
|
y += row->maxHeight();
|
|
if( y > maxY )
|
|
break;
|
|
}
|
|
}
|
|
|
|
Item *TextParag::itemAt( int px, int py, SelectionPoint *selectionInfo,
|
|
Item::SelectionAccuracy accuracy )
|
|
{
|
|
int y = 0;
|
|
int height = 0;
|
|
TextLine *row = m_lines.first();
|
|
for (; row; row = m_lines.next() )
|
|
{
|
|
height = row->maxHeight();
|
|
if ( y <= py && py <= ( y + height ) )
|
|
{
|
|
Item *i = row->itemAt( px, selectionInfo, accuracy );
|
|
if ( selectionInfo )
|
|
{
|
|
selectionInfo->pos.setY( y );
|
|
selectionInfo->parag = this;
|
|
}
|
|
return i;
|
|
}
|
|
y += height;
|
|
}
|
|
|
|
if ( accuracy == Item::SelectFuzzy && selectionInfo && !m_lines.isEmpty() )
|
|
{
|
|
TextLine *row = m_lines.getLast();
|
|
row->itemAt( px, selectionInfo, accuracy );
|
|
|
|
selectionInfo->pos.setY( y - height );
|
|
selectionInfo->parag = this;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
TQString TextParag::updateSelection( const SelectionPoint &start, const SelectionPoint &end )
|
|
{
|
|
TQString selectedText;
|
|
|
|
// sanity check
|
|
// (don't put it lower because it changes the current list item)
|
|
if ( end.parag == this )
|
|
assert( m_lines.findRef( end.line ) != -1 );
|
|
|
|
if ( start.parag == this )
|
|
{
|
|
int idx = m_lines.findRef( start.line );
|
|
assert( idx != -1 );
|
|
}
|
|
else
|
|
m_lines.first();
|
|
|
|
TextLine *line = m_lines.current();
|
|
|
|
TextLine *lastLine = m_lines.getLast();
|
|
|
|
if ( end.parag == this )
|
|
lastLine = end.line;
|
|
|
|
for (; line != lastLine; line = m_lines.next() )
|
|
selectedText += line->updateSelection( start, end );
|
|
|
|
if ( lastLine )
|
|
selectedText += lastLine->updateSelection( start, end );
|
|
|
|
return selectedText;
|
|
}
|
|
|
|
void TextParag::clearSelection()
|
|
{
|
|
// ### optimize, add 'selectionDirty' flag to TextLine and TextParag!
|
|
TextLine *line = m_lines.first();
|
|
for (; line; line = m_lines.next() )
|
|
line->clearSelection();
|
|
}
|
|
|
|
void TextParag::setRichText( const TQString &richText )
|
|
{
|
|
m_layouted = false;
|
|
m_height = 0;
|
|
m_minWidth = 0;
|
|
|
|
// ### FIXME SELECTION!!!!!!!!!
|
|
if ( m_textView->selectionStart()->parag == this ||
|
|
m_textView->selectionEnd()->parag == this )
|
|
m_textView->clearSelection();
|
|
|
|
m_lines.clear();
|
|
|
|
m_processedRichText = Tokenizer::preprocess( richText );
|
|
|
|
Tokenizer tokenizer( m_processedRichText );
|
|
Token tok;
|
|
Token lastTextToken;
|
|
|
|
TQValueStack<Tag> tagStack;
|
|
|
|
TextLine *line = new TextLine;
|
|
|
|
while ( tokenizer.parseNextToken( tok ) )
|
|
{
|
|
if ( tok.id == Token::TagOpen )
|
|
{
|
|
ItemProperties oldProps( m_textView->font() );
|
|
if ( !tagStack.isEmpty() )
|
|
oldProps = tagStack.top().props;
|
|
|
|
// ...bleh<foo>... -> finish off 'bleh' first
|
|
if ( lastTextToken.id != -1 )
|
|
{
|
|
Item *item = Item::create( this, lastTextToken, oldProps );
|
|
if ( item )
|
|
line->appendItem( item );
|
|
lastTextToken = Token();
|
|
}
|
|
|
|
ItemProperties props( oldProps, tok, m_textView );
|
|
tagStack.push( Tag( tok.value, props ) );
|
|
|
|
Item *item = Item::create( this, tok, props );
|
|
if ( item )
|
|
line->appendItem( item );
|
|
|
|
continue;
|
|
}
|
|
else if ( tok.id == Token::TagClose )
|
|
{
|
|
assert( !tagStack.isEmpty() );
|
|
|
|
Tag tag = tagStack.pop();
|
|
|
|
if( !( tok.value == tag.name ) ) {
|
|
kdDebug(5008) << "ASSERT failed! tok.value=" << tok.value.toTQString() << " tag.name=" << tag.name.toTQString() << endl;
|
|
kdDebug(5008) << "while parsing " << richText << endl;
|
|
}
|
|
|
|
// ...foo</bleh>... -> finish off 'foo'
|
|
if ( !lastTextToken.value.isNull() )
|
|
{
|
|
Item *item = Item::create( this, lastTextToken, tag.props );
|
|
if ( item )
|
|
line->appendItem( item );
|
|
}
|
|
|
|
lastTextToken = Token();
|
|
}
|
|
else
|
|
lastTextToken = tok;
|
|
}
|
|
|
|
// some plain text at the very end, outside of any tag?
|
|
if ( !lastTextToken.value.isNull() )
|
|
{
|
|
Item *item = Item::create( this, lastTextToken );
|
|
if ( item )
|
|
line->appendItem( item );
|
|
}
|
|
|
|
m_lines.append( line );
|
|
}
|
|
|
|
TQString TextParag::plainText() const
|
|
{
|
|
TQString result;
|
|
TQPtrListIterator<TextLine> it( m_lines );
|
|
for (; it.current(); ++it )
|
|
result += it.current()->plainText();
|
|
return result;
|
|
}
|
|
|
|
void TextParag::fontChange( const TQFont &newFont )
|
|
{
|
|
TQPtrListIterator<TextLine> it( m_lines );
|
|
for (; it.current(); ++it )
|
|
it.current()->fontChange( newFont );
|
|
}
|
|
|
|
ContentsPaintAlgorithm::ContentsPaintAlgorithm( const TQPtrListIterator<TextParag> ¶gIt,
|
|
TQWidget *viewport, TQPixmap &paintBuffer,
|
|
TQPainter &painter, int clipX, int clipY,
|
|
int clipHeight )
|
|
: m_paragIt( paragIt ), m_viewport( viewport ), m_paintBuffer( paintBuffer ),
|
|
m_painter( painter ), m_clipX( clipX ), m_clipY( clipY ), m_clipHeight( clipHeight ),
|
|
m_overshoot( 0 )
|
|
{
|
|
}
|
|
|
|
int ContentsPaintAlgorithm::goToFirstVisibleParagraph()
|
|
{
|
|
int y = 0;
|
|
|
|
while ( y < m_clipY && m_paragIt.current() ) {
|
|
y += m_paragIt.current()->height();
|
|
++m_paragIt;
|
|
}
|
|
|
|
y = adjustYAndIterator( y, y, m_clipY );
|
|
return y;
|
|
}
|
|
|
|
int ContentsPaintAlgorithm::paint( TQPainter &bufferedPainter, int currentY )
|
|
{
|
|
const int startY = currentY;
|
|
|
|
int nextY = startY + PaintBufferExtend;
|
|
|
|
if ( !m_paragIt.current() )
|
|
return nextY;
|
|
|
|
while ( currentY < nextY && m_paragIt.current() ) {
|
|
|
|
TextParag *parag = m_paragIt.current();
|
|
|
|
//kdDebug(5008) << "Painting[" << currentY << "/" << parag->height() << "]: " << parag->plainText() << endl;
|
|
|
|
int drawPos = currentY;
|
|
int newY = parag->height();
|
|
|
|
if(m_overshoot != 0) {
|
|
drawPos = currentY - parag->height() + m_overshoot;
|
|
newY = m_overshoot;
|
|
m_overshoot = 0;
|
|
}
|
|
|
|
parag->paint( bufferedPainter, drawPos, nextY );
|
|
currentY += newY;
|
|
|
|
++m_paragIt;
|
|
}
|
|
|
|
nextY = adjustYAndIterator( startY, currentY, nextY );
|
|
return nextY;
|
|
}
|
|
|
|
int ContentsPaintAlgorithm::adjustYAndIterator( int , int currentY, int nextY )
|
|
{
|
|
// nothing to adjust?
|
|
if ( currentY <= nextY || m_paragIt.atFirst() )
|
|
return currentY;
|
|
|
|
if ( m_paragIt.current() )
|
|
--m_paragIt;
|
|
else
|
|
m_paragIt.toLast();
|
|
|
|
m_overshoot = currentY - nextY;
|
|
if(m_overshoot < 0)
|
|
m_overshoot = 0;
|
|
|
|
return nextY;
|
|
}
|
|
|
|
void ContentsPaintAlgorithm::paint()
|
|
{
|
|
int y = goToFirstVisibleParagraph();
|
|
|
|
int yEnd = m_clipY + m_clipHeight;
|
|
|
|
while ( y < yEnd )
|
|
{
|
|
m_paintBuffer.fill( m_viewport, 0, y );
|
|
TQPainter bufferedPainter( &m_paintBuffer );
|
|
bufferedPainter.translate( -m_clipX, -y );
|
|
int nextY = paint( bufferedPainter, y );
|
|
|
|
|
|
bufferedPainter.end();
|
|
|
|
m_painter.drawPixmap( m_clipX, y, m_paintBuffer );
|
|
|
|
y = nextY;
|
|
}
|
|
}
|
|
|
|
TextView::TextView( TQWidget *parent, const char *name )
|
|
: TQScrollView( parent, name, WRepaintNoErase ),
|
|
m_paintBuffer( PaintBufferExtend, PaintBufferExtend ),
|
|
m_selectionEndBeforeStart( false ), m_mousePressed( false ),
|
|
m_mmbPressed( false ),
|
|
m_linkColor( TQt::blue ), m_height(-1), m_inScroll(false),
|
|
m_lastScroll(0)
|
|
{
|
|
m_parags.setAutoDelete( true );
|
|
viewport()->setBackgroundMode( PaletteBase );
|
|
viewport()->setMouseTracking( true );
|
|
m_autoScrollTimer = new TQTimer( this );
|
|
connect(verticalScrollBar(), TQT_SIGNAL(valueChanged( int ) ),
|
|
this, TQT_SLOT(scrolling( int )));
|
|
|
|
setDragAutoScroll( false );
|
|
|
|
// setStaticBackground( true );
|
|
}
|
|
|
|
TextView::~TextView()
|
|
{
|
|
}
|
|
|
|
void TextView::drawContents( TQPainter *painter, int clipX, int clipY, int , int clipHeight )
|
|
{
|
|
if ( m_parags.isEmpty() )
|
|
return;
|
|
|
|
if ( m_paintBuffer.width() != visibleWidth() )
|
|
m_paintBuffer.resize( visibleWidth(), PaintBufferExtend );
|
|
|
|
TQPtrListIterator<TextParag> paragIt( m_parags );
|
|
|
|
ContentsPaintAlgorithm( paragIt,
|
|
viewport(), m_paintBuffer, *painter, clipX, clipY,
|
|
clipHeight )
|
|
.paint();
|
|
}
|
|
|
|
void TextView::viewportResizeEvent( TQResizeEvent *ev )
|
|
{
|
|
TQScrollView::viewportResizeEvent(ev);
|
|
|
|
if ( ev->size().width() != ev->oldSize().width() )
|
|
layout();
|
|
|
|
int newdiff = ev->size().height() - ev->oldSize().height();
|
|
setContentsPos( 0, contentsY()-newdiff );
|
|
|
|
if(m_lastScroll == newdiff){
|
|
m_inScroll = false;
|
|
m_lastScroll = 0;
|
|
}
|
|
|
|
scrollToBottom();
|
|
}
|
|
|
|
void TextView::scrolling( int value )
|
|
{
|
|
int tl = m_height-visibleHeight();
|
|
int offset = 25;
|
|
|
|
TextParag *parag = m_parags.last();
|
|
if(parag){
|
|
if(parag->height() > offset)
|
|
offset = parag->height();
|
|
}
|
|
|
|
if((tl - value) > offset)
|
|
m_inScroll = true;
|
|
else
|
|
m_inScroll = false;
|
|
|
|
m_lastScroll = tl-value;
|
|
|
|
}
|
|
|
|
void TextView::scrollToBottom( bool force )
|
|
{
|
|
bool scroll = true;
|
|
if(force == true){
|
|
scroll = true;
|
|
}
|
|
else {
|
|
if(m_inScroll){
|
|
scroll = false;
|
|
}
|
|
else {
|
|
if(m_mousePressed == true){
|
|
scroll = false;
|
|
}
|
|
else {
|
|
scroll = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if(scroll == true)
|
|
setContentsPos( 0, m_height-visibleHeight() );
|
|
}
|
|
|
|
void TextView::clear()
|
|
{
|
|
stopAutoScroll();
|
|
clearSelection();
|
|
m_parags.clear();
|
|
layout();
|
|
viewport()->erase();
|
|
}
|
|
|
|
TextParagIterator TextView::appendParag( const TQString &richText )
|
|
{
|
|
TextParag *parag = new TextParag( this, richText );
|
|
m_parags.append( parag );
|
|
layout( false );
|
|
scrollToBottom();
|
|
TQPtrListIterator<TextParag> it( m_parags );
|
|
it.toLast();
|
|
return TextParagIterator( it );
|
|
}
|
|
|
|
bool TextView::removeParag( const TextParagIterator ¶g )
|
|
{
|
|
|
|
if ( parag.atEnd() )
|
|
return false;
|
|
|
|
TextParag *paragPtr = parag.m_paragIt.current();
|
|
const int idx = m_parags.findRef( paragPtr );
|
|
if ( idx == -1 )
|
|
return false;
|
|
|
|
if ( m_selectionStart.parag == paragPtr ||
|
|
m_selectionEnd.parag == paragPtr )
|
|
clearSelection( false );
|
|
|
|
int height = paragPtr->height();
|
|
m_parags.removeRef( paragPtr );
|
|
|
|
if(m_selectionStart.item != 0)
|
|
m_selectionStart.pos.ry() -= height;
|
|
if(m_selectionEnd.item != 0)
|
|
m_selectionEnd.pos.ry() -= height;
|
|
|
|
//layout( false );
|
|
contentsChange(-height, true);
|
|
|
|
|
|
if ( isUpdatesEnabled() )
|
|
updateContents();
|
|
|
|
return true;
|
|
}
|
|
|
|
void TextView::clearSelection( bool repaint )
|
|
{
|
|
m_selectionStart = SelectionPoint();
|
|
m_selectionEnd = SelectionPoint();
|
|
m_selectionEndBeforeStart = false;
|
|
m_selectedText = TQString();
|
|
clearSelectionInternal();
|
|
if ( repaint )
|
|
updateContents();
|
|
}
|
|
|
|
TextParagIterator TextView::firstParag() const
|
|
{
|
|
return TextParagIterator( TQPtrListIterator<TextParag>( m_parags ) );
|
|
}
|
|
|
|
TQString TextView::plainText() const
|
|
{
|
|
if ( m_parags.isEmpty() )
|
|
return TQString();
|
|
|
|
TQString result;
|
|
TQPtrListIterator<TextParag> paragIt( m_parags );
|
|
while ( paragIt.current() )
|
|
{
|
|
result += paragIt.current()->plainText();
|
|
++paragIt;
|
|
if ( paragIt.current() )
|
|
result += '\n';
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
TQColor TextView::linkColor() const
|
|
{
|
|
return m_linkColor;
|
|
}
|
|
|
|
void TextView::setLinkColor( const TQColor &linkColor )
|
|
{
|
|
m_linkColor = linkColor;
|
|
}
|
|
|
|
void TextView::copy()
|
|
{
|
|
TQApplication::clipboard()->setText( m_selectedText );
|
|
}
|
|
|
|
void TextView::clearSelectionInternal()
|
|
{
|
|
m_selectionEndBeforeStart = false;
|
|
TextParag *p = m_parags.first();
|
|
for (; p; p = m_parags.next() )
|
|
p->clearSelection();
|
|
}
|
|
|
|
void TextView::contentsMousePressEvent( TQMouseEvent *ev )
|
|
{
|
|
if ( ev->button() & Qt::RightButton ) {
|
|
emitLinkClickedForMouseEvent( ev );
|
|
return;
|
|
}
|
|
|
|
if ( !( ev->button() & Qt::LeftButton ) && !(ev->button() & Qt::MidButton ) )
|
|
return;
|
|
|
|
clearSelection( true );
|
|
SelectionPoint p;
|
|
Item *itemUnderMouse = itemAt( ev->pos(), &p, Item::SelectFuzzy );
|
|
if ( p.item && ( ev->button() & Qt::LeftButton ) ) {
|
|
m_selectionMaybeStart = p;
|
|
p.item->setSelectionStatus( Item::NoSelection );
|
|
}
|
|
if ( TextChunk *text = dynamic_cast<TextChunk *>( itemUnderMouse ) ) {
|
|
StringPtr href = text->props().attributes[ "href" ];
|
|
if ( !href.isNull() ) {
|
|
m_dragStartPos = ev->pos();
|
|
m_dragURL = href.toTQString();
|
|
if ( ev->button() & Qt::LeftButton )
|
|
m_mousePressed = true;
|
|
else
|
|
m_mmbPressed = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextView::contentsMouseMoveEvent( TQMouseEvent *ev )
|
|
{
|
|
if ( m_mousePressed && ev->state() == Qt::NoButton )
|
|
{
|
|
m_mousePressed = false;
|
|
m_mmbPressed = false;
|
|
}
|
|
|
|
if ( m_mousePressed && !m_dragURL.isEmpty() &&
|
|
( m_dragStartPos - ev->pos() ).manhattanLength() > TQApplication::startDragDistance() ) {
|
|
|
|
m_mousePressed = false;
|
|
m_dragStartPos = TQPoint();
|
|
|
|
startDrag();
|
|
|
|
m_dragURL = TQString();
|
|
return;
|
|
}
|
|
|
|
|
|
SelectionPoint p;
|
|
Item *i = itemAt( ev->pos(), &p, Item::SelectFuzzy );
|
|
if ( !i && !p.item )
|
|
return;
|
|
|
|
if ( (ev->state() & Qt::LeftButton && m_selectionStart.item && p.item) ||
|
|
(ev->state() & Qt::LeftButton && m_selectionMaybeStart.item && p.item))
|
|
{
|
|
|
|
if(m_selectionMaybeStart.item != 0){
|
|
m_selectionStart = m_selectionMaybeStart;
|
|
m_selectionMaybeStart = SelectionPoint();
|
|
}
|
|
|
|
m_selectionEnd = p;
|
|
|
|
clearSelectionInternal();
|
|
|
|
updateSelectionOrder();
|
|
|
|
SelectionPoint start = m_selectionStart;
|
|
SelectionPoint end = m_selectionEnd;
|
|
|
|
if ( m_selectionEndBeforeStart )
|
|
{
|
|
if ( start.item == end.item )
|
|
{
|
|
if ( start.offset > end.offset )
|
|
tqSwap( start.offset, end.offset );
|
|
}
|
|
else
|
|
tqSwap( start, end );
|
|
}
|
|
|
|
m_selectedText = updateSelection( start, end );
|
|
|
|
emit selectionChanged();
|
|
|
|
updateContents();
|
|
|
|
startAutoScroll();
|
|
|
|
return;
|
|
}
|
|
else if ( i )
|
|
{
|
|
TextChunk *text = dynamic_cast<TextChunk *>( i );
|
|
if ( text )
|
|
{
|
|
StringPtr href = text->props().attributes[ "href" ];
|
|
if ( !href.isNull() )
|
|
{
|
|
viewport()->setCursor( KCursor::handCursor() );
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
TQCursor c = KCursor::arrowCursor();
|
|
if ( viewport()->cursor().handle() != c.handle() )
|
|
viewport()->setCursor( c );
|
|
}
|
|
|
|
void TextView::contentsMouseReleaseEvent( TQMouseEvent *ev )
|
|
{
|
|
stopAutoScroll();
|
|
|
|
bool clicked = (m_mousePressed || m_mmbPressed) &&
|
|
(m_dragStartPos - ev->pos()).manhattanLength() < TQApplication::startDragDistance();
|
|
m_mousePressed = false;
|
|
m_mmbPressed = false;
|
|
m_dragStartPos = TQPoint();
|
|
m_dragURL = TQString();
|
|
|
|
m_selectionMaybeStart = SelectionPoint();
|
|
|
|
if ( (ev->button() & Qt::LeftButton) && !m_selectedText.isEmpty() )
|
|
TQApplication::clipboard()->setText( m_selectedText, TQClipboard::Selection );
|
|
|
|
if ( clicked ) {
|
|
emitLinkClickedForMouseEvent( ev );
|
|
return;
|
|
}
|
|
|
|
if (ev->button() & Qt::MidButton)
|
|
{
|
|
emit pasteReq( KApplication::clipboard()->text( TQClipboard::Selection ) );
|
|
return;
|
|
}
|
|
}
|
|
|
|
void TextView::fontChange( const TQFont & )
|
|
{
|
|
TQPtrListIterator<TextParag> it( m_parags );
|
|
for (; it.current(); ++it )
|
|
it.current()->fontChange( font() );
|
|
|
|
layout( true );
|
|
}
|
|
|
|
void TextView::startDrag()
|
|
{
|
|
TQDragObject *dragObj = dragObject( m_dragURL );
|
|
if ( !dragObj )
|
|
return;
|
|
|
|
stopAutoScroll();
|
|
|
|
dragObj->drag();
|
|
}
|
|
|
|
TQDragObject *TextView::dragObject( const TQString &dragURL )
|
|
{
|
|
#if KDE_IS_VERSION(3,1,92)
|
|
return new KURLDrag( KURL( dragURL ), viewport() );
|
|
#else
|
|
return KURLDrag::newDrag( KURL( dragURL ), viewport() );
|
|
#endif
|
|
}
|
|
|
|
void TextView::autoScroll()
|
|
{
|
|
TQPoint cursor = viewport()->mapFromGlobal( TQCursor::pos() );
|
|
|
|
TQPoint contentsPos = viewportToContents( cursor );
|
|
|
|
cursor.rx() -= viewport()->x();
|
|
cursor.ry() -= viewport()->y();
|
|
|
|
if ( ( cursor.x() < 0 || cursor.x() > visibleWidth() ) ||
|
|
( cursor.y() < 0 || cursor.y() > visibleHeight() ) ) {
|
|
ensureVisible( contentsPos.x(), contentsPos.y(),
|
|
0, 5 );
|
|
}
|
|
}
|
|
|
|
void TextView::emitLinkClickedForMouseEvent( TQMouseEvent *ev )
|
|
{
|
|
TextChunk *text = dynamic_cast<TextChunk *>( itemAt( ev->pos() ) );
|
|
if ( !text )
|
|
return;
|
|
|
|
StringPtr href = text->props().attributes[ "href" ];
|
|
if ( href.isNull() )
|
|
return;
|
|
|
|
emit linkClicked( ev, CONSTSTRING( href ) );
|
|
}
|
|
|
|
void TextView::startAutoScroll()
|
|
{
|
|
if(m_autoScrollTimer->isActive() == false){
|
|
connect( m_autoScrollTimer, TQT_SIGNAL( timeout() ),
|
|
this, TQT_SLOT( autoScroll() ) );
|
|
m_autoScrollTimer->start( 75, false );
|
|
}
|
|
}
|
|
|
|
void TextView::stopAutoScroll()
|
|
{
|
|
disconnect( m_autoScrollTimer, TQT_SIGNAL( timeout() ),
|
|
this, TQT_SLOT( autoScroll() ) );
|
|
m_autoScrollTimer->stop();
|
|
}
|
|
|
|
void TextView::selectionOffsets( int &startOffset, int &endOffset )
|
|
{
|
|
assert( m_selectionStart.item );
|
|
|
|
if ( m_selectionEndBeforeStart )
|
|
{
|
|
startOffset = m_selectionEnd.offset;
|
|
endOffset = m_selectionStart.offset;
|
|
}
|
|
else
|
|
{
|
|
startOffset = m_selectionStart.offset;
|
|
endOffset = m_selectionEnd.offset;
|
|
}
|
|
|
|
if ( m_selectionStart.item == m_selectionEnd.item && startOffset > endOffset )
|
|
tqSwap( startOffset, endOffset );
|
|
}
|
|
|
|
void TextView::updateSelectionOrder()
|
|
{
|
|
int start = m_selectionStart.pos.y();
|
|
int end = m_selectionEnd.pos.y();
|
|
|
|
if ( start == end )
|
|
{
|
|
start = m_selectionStart.pos.x();
|
|
end = m_selectionEnd.pos.x();
|
|
|
|
if ( start == end )
|
|
{
|
|
start = m_selectionStart.offset;
|
|
end = m_selectionEnd.offset;
|
|
}
|
|
}
|
|
|
|
m_selectionEndBeforeStart = end < start;
|
|
}
|
|
|
|
SelectionPoint *TextView::selectionStart()
|
|
{
|
|
return m_selectionEndBeforeStart ? &m_selectionEnd : &m_selectionStart;
|
|
}
|
|
|
|
SelectionPoint *TextView::selectionEnd()
|
|
{
|
|
return m_selectionEndBeforeStart ? &m_selectionStart : &m_selectionEnd;
|
|
}
|
|
|
|
TQString TextView::updateSelection( const SelectionPoint &start, const SelectionPoint &end )
|
|
{
|
|
TQString selectedText;
|
|
|
|
if ( start.item == end.item )
|
|
{
|
|
Item *i = start.item;
|
|
|
|
|
|
if ( start.offset == end.offset )
|
|
{
|
|
if ( start.pos.x() == end.pos.x() )
|
|
{
|
|
i->setSelectionStatus( Item::NoSelection );
|
|
return TQString();
|
|
}
|
|
|
|
i->setSelectionStatus( Item::SelectionBoth );
|
|
|
|
// ### ugly
|
|
const TextChunk *t = dynamic_cast<TextChunk *>( i );
|
|
if ( t )
|
|
{
|
|
StringPtr text = t->text();
|
|
selectedText = TQString( text.ptr + start.offset, 1 );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
i->setSelectionStatus( Item::SelectionBoth );
|
|
|
|
// ### ugly
|
|
TextChunk *t = dynamic_cast<TextChunk *>( i );
|
|
if ( t )
|
|
{
|
|
StringPtr text = t->text();
|
|
if (end.offset > start.offset)
|
|
selectedText = TQString( text.ptr + start.offset,
|
|
end.offset - start.offset + 1 );
|
|
else
|
|
selectedText = TQString( text.ptr + end.offset,
|
|
start.offset - end.offset + 1 );
|
|
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
assert( m_parags.findRef( end.parag ) != -1 );
|
|
const int idx = m_parags.findRef( start.parag );
|
|
assert( idx != -1 );
|
|
|
|
TextParag *p = m_parags.current();
|
|
for (; p && p != end.parag; p = m_parags.next() )
|
|
{
|
|
selectedText += p->updateSelection( start, end );
|
|
selectedText += '\n';
|
|
}
|
|
|
|
if ( p )
|
|
selectedText += p->updateSelection( start, end );
|
|
}
|
|
|
|
return selectedText;
|
|
}
|
|
|
|
void TextView::layout( bool force )
|
|
{
|
|
int height = 0;
|
|
int contentsWidth = visibleWidth();
|
|
int width = contentsWidth;
|
|
|
|
TQPtrListIterator<TextParag> it( m_parags );
|
|
for (; it.current(); ++it )
|
|
{
|
|
if ( !it.current()->isLayouted() || force )
|
|
it.current()->layout( width );
|
|
|
|
height += it.current()->height();
|
|
contentsWidth = kMax( contentsWidth, it.current()->minWidth() );
|
|
}
|
|
|
|
if ( m_selectionStart.item && m_selectionEnd.item )
|
|
updateSelection( *selectionStart(), *selectionEnd() );
|
|
|
|
m_height = height;
|
|
resizeContents( contentsWidth, height );
|
|
}
|
|
|
|
void TextView::contentsChange(int heightChange, bool force)
|
|
{
|
|
if(m_height == -1){
|
|
layout(force);
|
|
}
|
|
else {
|
|
m_height += heightChange;
|
|
resizeContents( visibleWidth(), m_height );
|
|
}
|
|
|
|
if ( m_selectionStart.item && m_selectionEnd.item )
|
|
updateSelection( *selectionStart(), *selectionEnd() );
|
|
|
|
|
|
}
|
|
|
|
Item *TextView::itemAt( const TQPoint &pos, SelectionPoint *selectionInfo,
|
|
Item::SelectionAccuracy accuracy )
|
|
{
|
|
int px = pos.x();
|
|
int py = pos.y();
|
|
|
|
int y = 0;
|
|
int height = 0;
|
|
TQPtrListIterator<TextParag> it( m_parags );
|
|
for (; it.current(); ++it )
|
|
{
|
|
height = it.current()->height();
|
|
if ( y <= py && py <= ( y + height ) )
|
|
{
|
|
Item *res = it.current()->itemAt( px, py - y, selectionInfo, accuracy );
|
|
if ( selectionInfo )
|
|
{
|
|
selectionInfo->pos.ry() += y;
|
|
selectionInfo->pos.rx() = px;
|
|
}
|
|
return res;
|
|
}
|
|
y += height;
|
|
}
|
|
|
|
if ( accuracy == Item::SelectFuzzy && selectionInfo && !m_parags.isEmpty() )
|
|
{
|
|
TextParag *parag = m_parags.getLast();
|
|
parag->itemAt( px, height - 1, selectionInfo, accuracy );
|
|
|
|
selectionInfo->pos.ry() += y - height;
|
|
selectionInfo->pos.rx() = px;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
TQString TextParagIterator::richText() const
|
|
{
|
|
if ( atEnd() )
|
|
return TQString();
|
|
|
|
return Tokenizer::convertToRichText( m_paragIt.current()->processedRichText() );
|
|
}
|
|
|
|
void TextParagIterator::setRichText( const TQString &richText )
|
|
{
|
|
if ( atEnd() )
|
|
return;
|
|
|
|
m_paragIt.current()->setRichText( richText );
|
|
|
|
TextView *textView = m_paragIt.current()->textView();
|
|
textView->layout( false );
|
|
|
|
if ( textView->isUpdatesEnabled() )
|
|
textView->updateContents();
|
|
}
|
|
|
|
TQString TextParagIterator::plainText() const
|
|
{
|
|
if ( atEnd() )
|
|
return TQString();
|
|
|
|
return m_paragIt.current()->plainText();
|
|
}
|
|
|
|
#include "kstextview.moc"
|
|
|
|
/*
|
|
* vim: et sw=4
|
|
*/
|