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584 lines
20 KiB
584 lines
20 KiB
#ifndef KOTEXTPARAG_H
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#define KOTEXTPARAG_H
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/* This file is part of the KDE project
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Copyright (C) 2001-2005 David Faure <faure@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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// -*- c++ -*-
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#include "KoParagLayout.h"
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#include "KoTextFormat.h"
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#include "KoRichText.h" // for KoTextString
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class KoTextFormatterBase;
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class KoTextParagLineStart;
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class KoTextString;
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class KoTextDocument;
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class KoParagCounter;
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class KoParagStyle;
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class KoTextCustomItem;
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class KoOasisContext;
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class KoSavingContext;
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class KoStyleCollection;
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struct KoTextParagSelection
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{
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int start, end;
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};
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#if defined(TQ_TEMPLATEDLL)
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// TQMOC_SKIP_BEGIN
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template class TQMap<int, KoTextParagSelection>;
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template class TQMap<int, KoTextParagLineStart*>;
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// TQMOC_SKIP_END
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#endif
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class KOTEXT_EXPORT KoTextParag
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{
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friend class KoTextDocument;
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friend class KoTextCursor;
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public:
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KoTextParag( KoTextDocument *d, KoTextParag *pr = 0, KoTextParag *nx = 0, bool updateIds = TRUE );
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virtual ~KoTextParag();
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KoTextString *string() const;
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KoTextStringChar *at( int i ) const;
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int leftGap() const;
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int length() const;
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// Abstraction over the trailing-space thing, so that it can be removed later
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int lastCharPos() const { return str->length()-2; }
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void setFormat( KoTextFormat *fm );
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KoTextFormat *paragFormat() const;
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KoTextDocument *document() const;
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TQRect rect() const;
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void setRect( const TQRect& rect ) { r = rect; }
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void setHeight( int h ) { r.setHeight( h ); }
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void setWidth( int w ) { r.setWidth( w ); }
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void show();
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void hide();
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bool isVisible() const { return visible; }
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KoTextParag *prev() const;
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KoTextParag *next() const;
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void setPrev( KoTextParag *s );
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void setNext( KoTextParag *s );
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void insert( int index, const TQString &s );
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void append( const TQString &s, bool reallyAtEnd = FALSE );
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void truncate( int index );
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void remove( int index, int len );
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void move( int &dy );
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void format( int start = -1, bool doMove = TRUE );
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/// Call this to ensure that format() will be called on this paragraph later on
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void tqinvalidate( int chr /*ignored*/ = 0 );
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/// Returns false if format() needs to be called on this paragraph
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bool isValid() const;
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/// 'changed' tells the painting code what it needs to paint
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bool hasChanged() const;
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void setChanged( bool b, bool recursive = FALSE );
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short int lineChanged(); // first line that has been changed.
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void setLineChanged( short int line );
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int lineHeightOfChar( int i, int *bl = 0, int *y = 0 ) const;
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KoTextStringChar *lineStartOfChar( int i, int *index = 0, int *line = 0 ) const;
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int lines() const;
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KoTextStringChar *lineStartOfLine( int line, int *index = 0 ) const;
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int lineY( int l ) const;
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int lineBaseLine( int l ) const;
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int lineHeight( int l ) const;
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void lineInfo( int l, int &y, int &h, int &bl ) const;
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void setSelection( int id, int start, int end );
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void removeSelection( int id );
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int selectionStart( int id ) const;
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int selectionEnd( int id ) const;
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bool hasSelection( int id ) const;
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bool hasAnySelection() const;
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bool fullSelected( int id ) const;
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//void setEndState( int s );
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//int endState() const;
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void setParagId( int i );
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int paragId() const;
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TQMap<int, KoTextParagLineStart*> &lineStartList();
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void setFormat( int index, int len, const KoTextFormat *f, bool useCollection = TRUE, int flags = -1 );
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void tqsetAlignment( uint a );
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void tqsetAlignmentDirect( uint a ) { align = a; }
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uint tqalignment() const;
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virtual void paint( TQPainter &painter, const TQColorGroup &cg, KoTextCursor *cursor, bool drawSelections,
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int clipx, int clipy, int clipw, int cliph ); // kotextparag.cc
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int topMargin() const;
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int bottomMargin() const;
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int leftMargin() const;
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int firstLineMargin() const;
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int rightMargin() const;
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int lineSpacing( int line ) const;
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int calculateLineSpacing( int line, int start, int last ) const;
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void registerFloatingItem( KoTextCustomItem *i );
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void unregisterFloatingItem( KoTextCustomItem *i );
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void setFullWidth( bool b ) { fullWidth = b; }
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bool isFullWidth() const { return fullWidth; }
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int customItems() const;
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void setDocumentRect( const TQRect &r );
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int documentWidth() const;
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//int documentVisibleWidth() const;
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int documentX() const;
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int documentY() const;
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KoTextFormatCollection *formatCollection() const;
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//void setFormatter( KoTextFormatterBase *f );
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KoTextFormatterBase *formatter() const;
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//int minimumWidth() const;
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int widthUsed() const;
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int nextTabDefault( int i, int x );
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int nextTab( int i, int x, int availableWidth );
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int *tabArray() const;
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void setTabArray( int *a );
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void setTabStops( int tw );
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/// Set whether '\n' should break the paragraph into multiple lines
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/// Not used
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void setNewLinesAllowed( bool b );
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/// Return whether '\n' should break the paragraph into multiple lines
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bool isNewLinesAllowed() const;
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virtual void join( KoTextParag *s );
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virtual void copyParagData( KoTextParag *parag );
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//void setBreakable( bool b ) { breakable = b; }
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//bool isBreakable() const { return breakable; }
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void setMovedDown( bool b ) { movedDown = b; }
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bool wasMovedDown() const { return movedDown; }
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void setDirection( TQChar::Direction d );
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TQChar::Direction direction() const;
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/// Mark a paragraph as being part of the table of contents (kword only)
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void setPartOfTableOfContents( bool b ) { m_toc = b; }
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bool partOfTableOfContents() const { return m_toc; }
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// For KoTextFormatter only
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void insertLineStart( int index, KoTextParagLineStart *ls );
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protected:
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void drawLabel( TQPainter* p, int x, int y, int w, int h, int base, const TQColorGroup& cg );
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void drawCursorDefault( TQPainter &painter, KoTextCursor *cursor, int curx, int cury, int curh, const TQColorGroup &cg );
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void drawCursor( TQPainter &painter, KoTextCursor *cursor, int curx, int cury, int curh, const TQColorGroup &cg );
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/**
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* We extend KoTextParag with more (zoom-aware) features,
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* like linespacing, borders, counter, tabulators, etc.
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* This also implements WYSIWYG text drawing.
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*/
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public:
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KoTextDocument * textDocument() const { return document(); }
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KoTextFormat * paragraphFormat() const
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{ return static_cast<KoTextFormat *>( paragFormat() ); }
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/** Sets all or some parameters from a paragLayout struct.
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* @param flags selects which settings to apply, see KoParagLayout's enum. */
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virtual void setParagLayout( const KoParagLayout &tqlayout, int flags = KoParagLayout::All,
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int marginIndex = -1 );
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const KoParagLayout & paragLayout() { return m_layout; }
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// Margins
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double margin( TQStyleSheetItem::Margin m ) { return m_layout.margins[m]; }
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const double * margins() const { return m_layout.margins; }
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void setMargin( TQStyleSheetItem::Margin m, double _i );
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void setMargins( const double * _i );
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/** Line spacing in pt if >=0, can also be one of the LS_* values */
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double kwLineSpacing() const { return m_layout.lineSpacingValue(); }
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void setLineSpacing( double _i );
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KoParagLayout::SpacingType kwLineSpacingType() const { return m_layout.lineSpacingType; }
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void setLineSpacingType( KoParagLayout::SpacingType _type );
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/** Use this to change the paragraph tqalignment, not KoTextParag::tqsetAlignment ! */
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void setAlign( int align );
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/** Return the real tqalignment: Auto is resolved to either Left or Right */
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int resolveAlignment() const;
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/// The part of the top margin that can be broken by a page break
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/// Obviously the non-breakable part (e.g. border width) is topMargin()-breakableTopMargin()
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int breakableTopMargin() const;
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// Borders
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KoBorder leftBorder() const { return m_layout.leftBorder; }
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KoBorder rightBorder() const { return m_layout.rightBorder; }
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KoBorder topBorder() const { return m_layout.topBorder; }
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KoBorder bottomBorder() const { return m_layout.bottomBorder; }
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bool hasBorder() const { return m_layout.hasBorder(); }
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bool joinBorder() const { return m_layout.joinBorder; }
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void setLeftBorder( const KoBorder & _brd ) { m_layout.leftBorder = _brd; }
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void setRightBorder( const KoBorder & _brd ) { m_layout.rightBorder = _brd; }
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void setTopBorder( const KoBorder & _brd );
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void setBottomBorder( const KoBorder & _brd );
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void setJoinBorder( bool join );
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// Paragraph background
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TQColor backgroundColor() { return m_layout.backgroundColor; }
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void setBackgroundColor( const TQColor& color);
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// Counters are used to implement list and heading numbering/bullets.
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void setCounter( const KoParagCounter & counter );
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void setNoCounter();
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void setCounter( const KoParagCounter * pCounter );
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KoParagCounter *counter();
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/** The space required to draw the complete counter label (i.e. the Counter for this
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* paragraph, as well as the Counters for any paragraphs above us in the numbering
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* hierarchy). @see drawLabel(). */
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int counterWidth() const;
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/** Style used by this paragraph */
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KoParagStyle *style() const { return m_layout.style; }
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/** Sets the style in this paragraph, but doesn't _apply_ it, only sets a reference */
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void setStyle( KoParagStyle *style ) { m_layout.style = style; }
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/** Applies the style directly (without undo/redo! See KoTextObject for the full command) */
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void applyStyle( KoParagStyle *style );
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/** Get tabulator positions */
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const KoTabulatorList& tabList() const { return m_layout.tabList(); }
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/** Set tabulator positions */
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void setTabList( const KoTabulatorList &tabList );
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/** Return the X for the shadow distance in pixels (zoomed) */
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int shadowX( KoTextZoomHandler *zh ) const;
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/** Return the Y for the shadow distance in pixels (zoomed) */
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int shadowY( KoTextZoomHandler *zh ) const;
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/** Return the Y for the shadow distance in pt */
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double shadowDistanceY() const;
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/** Set a @p custom item at position @p index, with format @p currentFormat (convenience method) */
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void setCustomItem( int index, KoTextCustomItem * custom, KoTextFormat * currentFormat );
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/** Remove the custom item from position @p index, but doesn't delete it */
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void removeCustomItem( int index );
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/** Find a custom item that we know is somewhere in this paragraph
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* Returns the index in the paragraph */
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int findCustomItem( const KoTextCustomItem * custom ) const;
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/** Cache to find a tab by char index, TQMap<char index, tab index> */
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TQMap<int, int>& tabCache() { return m_tabCache; }
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/** @return the parag rect, in pixels. This takes care of some rounding problems */
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TQRect pixelRect( KoTextZoomHandler* zh ) const;
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/** draw underline and double underline. Static because it's used
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* for draw double/simple in variable.
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*/
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static void drawFontEffects( TQPainter * p, KoTextFormat *format, KoTextZoomHandler *zh, TQFont font, const TQColor & color, int startX, int baseLine, int bw, int y, int h, TQChar firstChar );
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/** a bit more clever than KoTextString::toString, e.g. with numbered lists */
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TQString toString( int from = 0, int length = 0xffffffff) const;
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/// The app should call this during formatting - e.g. in formatVertically
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void fixParagWidth( bool viewFormattingChars );
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/// Load from XML
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virtual void loadOasis( const TQDomElement& e, KoOasisContext& context, KoStyleCollection *styleCollection, uint& pos );
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/// Save to XML
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/// By default the whole paragraph is saved. from/to allow to save only a portion of it.
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/// The 'from' and 'to' characters are both included.
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virtual void saveOasis( KoXmlWriter& writer, KoSavingContext& context,
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int from, int to, bool saveAnchorsFramesets = false ) const;
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/**
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* Load a section of text from a oasis based xml tree.
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* @param tqparent the xml element that has content as tqchildren.
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* @param context the context
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* @param stripLeadingSpace whether to remove leading literal whitespace
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*/
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void loadOasisSpan( const TQDomElement& tqparent, KoOasisContext& context, uint& pos, bool stripLeadingSpace = false );
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/**
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* Load a section of text from a oasis based xml tree.
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* @param tqparent the xml element that has content as tqchildren.
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* @param context the context
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* @param stripLeadingSpace whether to remove leading literal whitespace
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* @param hasTrailingSpace whether there was trailing literal whitespace in the span's text
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*/
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void loadOasisSpan( const TQDomElement& tqparent, KoOasisContext& context, uint& pos, bool stripLeadingSpace, bool *hasTrailingSpace );
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void applyListStyle( KoOasisContext& context, int restartNumbering, bool orderedList, bool heading, int level );
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#ifndef NDEBUG
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void printRTDebug( int );
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#endif
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protected:
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void invalidateCounters();
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bool lineHyphenated( int l ) const;
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void paintLines( TQPainter &painter, const TQColorGroup &cg, KoTextCursor *cursor, bool drawSelections,
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int clipx, int clipy, int clipw, int cliph );
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void drawParagString( TQPainter &painter, const TQString &str, int start, int len, int startX,
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int lastY, int baseLine, int bw, int h, bool drawSelections,
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KoTextFormat *lastFormat, const TQMemArray<int> &selectionStarts,
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const TQMemArray<int> &selectionEnds, const TQColorGroup &cg, bool rightToLeft, int line );
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void drawParagStringInternal( TQPainter &painter, const TQString &s, int start, int len, int startX,
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int lastY, int baseLine, int bw, int h, bool drawSelections,
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KoTextFormat *lastFormat, const TQMemArray<int> &selectionStarts,
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const TQMemArray<int> &selectionEnds, const TQColorGroup &cg, bool rightToLeft, int line, KoTextZoomHandler* zh, bool drawingShadow );
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/// Bitfield for drawFormattingChars's "whichFormattingChars" param
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enum { FormattingSpace = 1, FormattingBreak = 2, FormattingEndParag = 4, FormattingTabs = 8,
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AllFormattingChars = FormattingSpace | FormattingBreak | FormattingEndParag | FormattingTabs };
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/// Called by drawParagStringInternal to draw the formatting characters, if the
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/// kotextdocument drawingflag for it was set.
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/// The last arg is a bit special: drawParagStringInternal always sets it to "all",
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/// but reimplementations can change its value.
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virtual void drawFormattingChars( TQPainter &painter, int start, int len,
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int lastY_pix, int baseLine_pix, int h_pix, // in pixels
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bool drawSelections,
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KoTextFormat *format, const TQMemArray<int> &selectionStarts,
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const TQMemArray<int> &selectionEnds, const TQColorGroup &cg,
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bool rightToLeft, int line, KoTextZoomHandler* zh,
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int whichFormattingChars );
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protected:
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KoParagLayout m_layout;
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TQMap<int, int> m_tabCache;
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private:
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KoParagLayout loadParagLayout( KoOasisContext& context, KoStyleCollection *styleCollection, bool findStyle );
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/////// End of kotext-specific additions
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private:
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TQMap<int, KoTextParagSelection> &selections() const;
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TQPtrList<KoTextCustomItem> &floatingItems() const;
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/// Returns the height of the biggest character in that line
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int heightForLineSpacing( int startChar, int lastChar ) const;
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TQMap<int, KoTextParagLineStart*> lineStarts;
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TQRect r;
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KoTextParag *p, *n;
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KoTextDocument *doc;
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bool m_invalid : 1;
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bool changed : 1;
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bool fullWidth : 1;
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bool newLinesAllowed : 1;
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bool visible : 1;
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bool movedDown : 1;
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bool m_toc : 1;
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uint align : 4;
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short int m_lineChanged;
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int id;
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int m_wused;
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KoTextString *str;
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TQMap<int, KoTextParagSelection> *mSelections;
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TQPtrList<KoTextCustomItem> *mFloatingItems;
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KoTextFormat *defFormat; // is this really used?
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int *tArray;
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// Those things are used by TQRT for the case of a paragraph without document
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// We don't use this currently, and it's not worth making EVERY parag bigger
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// just for a special case that's rarely used. Better have lightweight KoTextDocument
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// replacement (with common base class), if we ever want efficient single-parag docs...
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//int tabStopWidth;
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//TQRect docRect;
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//KoTextFormatterBase *pFormatter;
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//KoTextDocCommandHistory *commandHistory;
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};
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inline int KoTextParag::length() const
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{
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return str->length();
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}
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inline TQRect KoTextParag::rect() const
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{
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return r;
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}
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inline KoTextStringChar *KoTextParag::at( int i ) const
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{
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return &str->at( i );
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}
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inline bool KoTextParag::isValid() const
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{
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return !m_invalid;
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}
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inline bool KoTextParag::hasChanged() const
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{
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return changed;
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}
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inline short int KoTextParag::lineChanged()
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{
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return m_lineChanged;
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}
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inline void KoTextParag::append( const TQString &s, bool reallyAtEnd )
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{
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if ( reallyAtEnd )
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insert( str->length(), s );
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else
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insert( TQMAX( str->length() - 1, 0 ), s );
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}
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inline KoTextParag *KoTextParag::prev() const
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{
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return p;
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}
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inline KoTextParag *KoTextParag::next() const
|
|
{
|
|
return n;
|
|
}
|
|
|
|
inline bool KoTextParag::hasAnySelection() const
|
|
{
|
|
return mSelections ? !selections().isEmpty() : FALSE;
|
|
}
|
|
|
|
/*inline void KoTextParag::setEndState( int s )
|
|
{
|
|
if ( s == state )
|
|
return;
|
|
state = s;
|
|
}
|
|
|
|
inline int KoTextParag::endState() const
|
|
{
|
|
return state;
|
|
}*/
|
|
|
|
inline void KoTextParag::setParagId( int i )
|
|
{
|
|
id = i;
|
|
}
|
|
|
|
inline int KoTextParag::paragId() const
|
|
{
|
|
//if ( id == -1 )
|
|
// kdWarning() << "invalid parag id!!!!!!!! (" << (void*)this << ")" << endl;
|
|
return id;
|
|
}
|
|
|
|
inline TQMap<int, KoTextParagLineStart*> &KoTextParag::lineStartList()
|
|
{
|
|
return lineStarts;
|
|
}
|
|
|
|
inline KoTextString *KoTextParag::string() const
|
|
{
|
|
return str;
|
|
}
|
|
|
|
inline KoTextDocument *KoTextParag::document() const
|
|
{
|
|
return doc;
|
|
}
|
|
|
|
inline void KoTextParag::tqsetAlignment( uint a )
|
|
{
|
|
if ( a == align )
|
|
return;
|
|
align = a;
|
|
tqinvalidate( 0 );
|
|
}
|
|
|
|
/*inline void KoTextParag::setListStyle( TQStyleSheetItem::ListStyle ls )
|
|
{
|
|
lstyle = ls;
|
|
tqinvalidate( 0 );
|
|
}
|
|
|
|
inline TQStyleSheetItem::ListStyle KoTextParag::listStyle() const
|
|
{
|
|
return lstyle;
|
|
}*/
|
|
|
|
inline KoTextFormat *KoTextParag::paragFormat() const
|
|
{
|
|
return defFormat;
|
|
}
|
|
|
|
inline void KoTextParag::registerFloatingItem( KoTextCustomItem *i )
|
|
{
|
|
floatingItems().append( i );
|
|
}
|
|
|
|
inline void KoTextParag::unregisterFloatingItem( KoTextCustomItem *i )
|
|
{
|
|
floatingItems().removeRef( i );
|
|
}
|
|
|
|
/*inline void KoTextParag::addCustomItem()
|
|
{
|
|
numCustomItems++;
|
|
}
|
|
|
|
inline void KoTextParag::removeCustomItem()
|
|
{
|
|
numCustomItems--;
|
|
}*/
|
|
|
|
inline int KoTextParag::customItems() const
|
|
{
|
|
return mFloatingItems ? mFloatingItems->count() : 0;
|
|
// was numCustomItems, but no need for a separate count
|
|
}
|
|
|
|
inline void KoTextParag::setNewLinesAllowed( bool b )
|
|
{
|
|
newLinesAllowed = b;
|
|
}
|
|
|
|
inline bool KoTextParag::isNewLinesAllowed() const
|
|
{
|
|
return newLinesAllowed;
|
|
}
|
|
|
|
#endif
|