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505 lines
23 KiB
505 lines
23 KiB
/* This file is part of the KDE project
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Copyright (C) 1998, 1999, 2000 Reginald Stadlbauer <reggie@kde.org>
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Copyright (C) 2005 Thomas Zander <zander@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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#ifndef frame_set_h
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#define frame_set_h
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#include "KWFrame.h"
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#include <qptrvector.h>
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#include <qptrlist.h>
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#include "qdom.h"
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class KWAnchor;
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class KWFrame;
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class KWFrameSetEdit;
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class KWPageManager;
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class KWTableFrameSet;
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class KWTextFrameSet;
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class KWTextFrameSetEdit;
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class KWTextParag;
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class KWView;
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class KWordFrameSetIface;
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class KWFrameViewManager;
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class KoSavingContext;
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class KoTextDocument;
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class KoTextFormat;
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class KoTextParag;
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class KoXmlWriter;
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class KCommand;
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class QPoint;
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class QProgressDialog;
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/**
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* Class: KWFrameSet
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* Base type, a frameset holds content as well as frames to show that
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* content.
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* The different types of content are implemented in the different
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* types of frameSet implementations (see below)
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* @see KWTextFrameSet, KWPartFrameSet, KWPictureFrameSet,
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* KWFormulaFrameSet, KWTableFrameSet
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*/
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class KWFrameSet : public QObject
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{
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Q_OBJECT
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public:
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/// constructor
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KWFrameSet( KWDocument *doc );
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/// destructor
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virtual ~KWFrameSet();
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virtual KWordFrameSetIface* dcopObject();
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/** The type of frameset. Use this to differentiate between different instantiations of
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* the framesets. Each implementation will return a different frameType.
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*/
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virtual FrameSetType type() const { return FT_BASE; }
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virtual void addTextFrameSets( QPtrList<KWTextFrameSet> & /*lst*/, bool /*onlyReadWrite*/ = false ) {};
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virtual bool ownLine() const { return FALSE;}
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/** The different types of textFramesets (that TEXT is important here!)
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* FI_BODY = normal text frames.<br>
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* FI_FIRST_HEADER = Header on page 1<br>
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* FI_EVEN_HEADER = header on any even page<br>
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* FI_ODD_HEADER = header on any odd page (can be including page 1)<br>
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* FI_FIRST_FOOTER = footer on page 1<br>
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* FI_EVEN_FOOTER = footer on any even page<br>
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* FI_ODD_FOOTER = footer on any odd page (can be including page 1)<br>
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* FI_FOOTNOTE = a footnote frame.
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*/
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enum Info { FI_BODY = 0, FI_FIRST_HEADER = 1, FI_EVEN_HEADER = 2, FI_ODD_HEADER = 3,
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FI_FIRST_FOOTER = 4, FI_EVEN_FOOTER = 5, FI_ODD_FOOTER = 6,
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FI_FOOTNOTE = 7 };
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/** Returns the type of TextFrameSet this is */
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Info frameSetInfo()const { return m_info; }
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/** Set the type of TextFrameSet this is */
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void setFrameSetInfo( Info fi ) { m_info = fi; }
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bool isAHeader() const;
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bool isAFooter() const;
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bool isHeaderOrFooter() const { return isAHeader() || isAFooter(); }
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bool isFootEndNote() const;
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const char* headerFooterTag() const; // for OASIS saving
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virtual bool isFootNote() const { return false; }
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virtual bool isEndNote() const { return false; }
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bool isMainFrameset() const;
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bool isMoveable() const;
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// frame management
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virtual void addFrame( KWFrame *_frame, bool recalc = true );
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/** Delete a frame from the set of frames this frameSet has.
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* @param num The frameNumber to be removed.
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* @param remove passing true means that there can not be an undo of the action.
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* @param recalc do an updateFrames()
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*/
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virtual void deleteFrame( unsigned int num, bool remove = true, bool recalc = true );
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/** Delete a frame from the set of frames this frameSet has.
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* @param frm The frame that should be deleted
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* @param remove passing true means that there can not be an undo of the action.
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* @param recalc do an updateFrames()
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*/
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void deleteFrame( KWFrame *frm, bool remove = true, bool recalc = true ); // calls the virtual one
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/// Called by deleteFrame when it really deletes a frame (remove=true), to remove it from the table too
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virtual void frameDeleted( KWFrame* /*frm*/, bool /*recalc*/ ) {}
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void deleteAllFrames();
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void deleteAllCopies(); /// \note for headers/footers only
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/** retrieve frame from x and y coords (unzoomed coords) */
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KWFrame *frameAtPos( double _x, double _y ) const;
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/** Return if the point is on the frame.
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* @param nPoint the point in normal coordinates.
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* @param borderOfFrameOnly when true an additional check is done if the point
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* is on the border.
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* @param frame the frame to check inside of
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*/
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bool isFrameAtPos( const KWFrame* frame, const QPoint& nPoint, bool borderOfFrameOnly=false ) const;
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/** get a frame by number */
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KWFrame *frame( unsigned int _num ) const;
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/**
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* Returns the original frame that the param frame is a copy off, or the frame itself.
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* For changing a frame that is a copy of another (as found in KWFrame::isCopy()) you
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* need a so called settings frame, or original frame. This method can savely be called
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* on any frame to make sure you are dealing with the original frame.
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* @param frame the frame to find the settings frame for.
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* @return the frame itself if its not a copy, or the original frame if it is one.
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*/
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static KWFrame * settingsFrame( const KWFrame* frame );
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/** Iterator over the child frames */
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const QPtrList<KWFrame> &frameIterator() const { return m_frames; }
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/** Get frame number */
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int frameFromPtr( KWFrame *frame );
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/** Get number of child frames */
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unsigned int frameCount() const { return m_frames.count(); }
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/** True if the frameset was deleted (but not destroyed, since it's in the undo/redo) */
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bool isDeleted() const { return m_frames.isEmpty(); }
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/** Create a framesetedit object to edit this frameset in @p canvas */
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virtual KWFrameSetEdit * createFrameSetEdit( KWCanvas * ) { return 0; }
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/**
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* Let the caller know which parts of @p emptyRegion we do not claim, and thus the caller is
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* free to paint on without interfering with later paints from us.
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* For painting all frames of all framesets the painter needs to find out what area we
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* will fill with a background color and possibly paint over.
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* What this method does is fill an QRegion with all the areas we are going to fill, which
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* typically means we will paint the background of a frame there.
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* @param emptyRegion The region is modified to subtract the areas painted, thus
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* allowing the caller to determine which areas remain to be painted.
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* Framesets that can be transparent should reimplement this and make it a no-op,
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* so that the background is painted below the transparent frame.
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* @param crect the cliprect; only parts inside this rect are of interrest to us
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* @param viewMode For coordinate conversion, always set.
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*/
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virtual void createEmptyRegion( const QRect & crect, QRegion & emptyRegion, KWViewMode *viewMode );
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/**
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* Paint this frameset
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* @param painter The painter in which to draw the contents of the frameset
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* @param crect The rectangle (in scrollview "contents coordinates", i.e. "view coords")
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* to be painted
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* @param cg The colorgroup from which to get the colors
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* @param onlyChanged If true, only redraw what has changed (see KWCanvas::repaintChanged)
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* @param resetChanged If true, set the changed flag to false after drawing.
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* @param edit If set, this frameset is being edited, so a cursor is needed.
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* @param viewMode For coordinate conversion, always set.
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* @param frameViewManager the frameViewManager;
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*
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* The way this "onlyChanged/resetChanged" works is: when something changes,
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* all views are asked to redraw themselves with onlyChanged=true.
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* But all views except the last one shouldn't reset the changed flag to false,
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* otherwise the other views wouldn't repaint anything.
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* So resetChanged is called with "false" for all views except the last one,
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* and with "true" for the last one, so that it resets the flag.
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*
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* Framesets shouldn't reimplement this one in theory [but KWTableFrameSet has to].
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*/
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virtual void drawContents( QPainter *painter, const QRect &crect,
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const QColorGroup &cg, bool onlyChanged, bool resetChanged,
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KWFrameSetEdit *edit, KWViewMode *viewMode,
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KWFrameViewManager *frameViewManager );
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/**
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* This one is called by drawContents for each frame.
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* It sets up clip rect and painter translation, and calls drawFrame, drawFrameBorder and drawMargins
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*
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* @param drawUnderlyingFrames if the frame implements it, then it should draw underlying frames.
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* This is set to false by the default drawFrame implementation, so that the frames under a
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* transparent frame are simply drawn, without transparency handling (nor their own
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* double-buffering).
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* @param frame the frame to draw
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* @param painter the painter to draw to
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* @param settingsFrame The frame from which we take the settings (usually @p frame, but not with Copy behaviour)
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* @param cg The colorgroup from which to get the colors
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* @param edit If set, this frameset is being edited, so a cursor is needed.
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* @param viewMode For coordinate conversion, always set.
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* @param crect rectangle to be repainted, in view coordinates. Includes padding.
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*/
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void drawFrameAndBorders( KWFrame *frame,
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QPainter *painter, const QRect &crect,
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const QColorGroup &cg, bool, bool,
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KWFrameSetEdit *edit, KWViewMode *viewMode,
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KWFrame *settingsFrame, bool drawUnderlyingFrames );
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/**
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* Paint the borders for one frame of this frameset.
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* @param painter The painter in which to draw the contents of the frameset
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* @param frame The frame to be drawn
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* @param settingsFrame The frame from which we take the settings (usually @p frame, but not with Copy behaviour)
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* @param crect The rectangle (in "contents coordinates") to be painted
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* @param viewMode For coordinate conversion, always set.
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*/
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void drawFrameBorder( QPainter *painter, KWFrame *frame, KWFrame *settingsFrame,
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const QRect &crect, KWViewMode *viewMode );
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/**
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* Draw a particular frame of this frameset.
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* This is called by drawContents and is what framesets must reimplement.
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* @param fcrect rectangle to be repainted, in the _frame_'s coordinate system, in pixels.
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* Doesn't include padding.
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*
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* @param crect rectangle to be repainted, in view coordinates. Includes padding.
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* Default implementation does double-buffering and calls drawFrameContents.
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* @param frame the frame to draw
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* @param painter the painter to draw to
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* @param settingsFrame The frame from which we take the settings (usually @p frame, but not with Copy behaviour)
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* @param cg The colorgroup from which to get the colors
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* @param onlyChanged If true, only redraw what has changed (see KWCanvas::repaintChanged)
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* @param resetChanged If true, set the changed flag to false after drawing.
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* @param edit If set, this frameset is being edited, so a cursor is needed.
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* @param viewMode For coordinate conversion, always set.
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* @param drawUnderlyingFrames if the frame implements it, then it should draw underlying frames.
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* @param translationOffset offset this method will translate the paiter before doing its work.
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*/
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virtual void drawFrame( KWFrame *frame, QPainter *painter, const QRect &fcrect, const QRect &crect,
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const QPoint& translationOffset,
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KWFrame *settingsFrame, const QColorGroup &cg, bool onlyChanged, bool resetChanged,
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KWFrameSetEdit *edit, KWViewMode *viewMode, bool drawUnderlyingFrames );
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/**
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* Implement this one instead of drawFrame to benefit from double-buffering
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* AND transparency handling (painting frames below this one) automatically.
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* You MUST reimplement one or the other, or you'll get infinite recursion ;)
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*
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* In this method, the painter has been translated to the frame's coordinate system
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* @param fcrect rectangle to be repainted, in the _frame_'s coordinate system, in pixels.
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* Doesn't include padding.
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* @param frame the frame to draw
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* @param painter the painter to draw to
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* @param cg The colorgroup from which to get the colors
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* @param onlyChanged If true, only redraw what has changed (see KWCanvas::repaintChanged)
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* @param resetChanged If true, set the changed flag to false after drawing.
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* @param edit If set, this frameset is being edited, so a cursor is needed.
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* @param viewMode For coordinate conversion, always set.
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*/
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virtual void drawFrameContents( KWFrame * frame, QPainter *painter, const QRect& fcrect,
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const QColorGroup &cg, bool onlyChanged, bool resetChanged,
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KWFrameSetEdit * edit, KWViewMode *viewMode );
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/**
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* Draw the padding area inside of a specific frame of this frameSet
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*/
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virtual void drawPadding( KWFrame *frame, QPainter *p, const QRect &fcrect, const QColorGroup &cg, KWViewMode *viewMode);
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enum UpdateFramesFlags {
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UpdateFramesInPage = 1,
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SortFrames = 2 ///< kwtextframeset only
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// next one is 4, not 3 ;)
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};
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/**
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* Called when our frames change, or when another frameset's frames change.
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* Framesets can reimplement it, but should always call the parent method.
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*/
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virtual void updateFrames( int flags = 0xff );
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/** Return list of frames in page @p pageNum.
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* This is fast since it uses the m_framesInPage array.*/
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const QPtrList<KWFrame> & framesInPage( int pageNum ) const;
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/** Allows to detect that updateFrames() hasn't been called yet (e.g. on loading) */
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bool hasFramesInPageArray() const { return !m_framesInPage.isEmpty(); }
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/** relayout text in frames, so that it flows correctly around other frames */
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virtual void layout() {}
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virtual void invalidate() {}
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/// save to XML - when saving
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virtual QDomElement save( QDomElement &parentElem, bool saveFrames = true ) = 0;
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/// save to XML - when copying to clipboard
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virtual QDomElement toXML( QDomElement &parentElem, bool saveFrames = true )
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{ return save( parentElem, saveFrames ); }
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/// Save to OASIS format
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virtual void saveOasis( KoXmlWriter& writer, KoSavingContext& context, bool saveFrames ) const = 0;
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/// If the frameset is inline, is it ok to save it inside an oasis <text:p>?
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/// If not, KWAnchor will create a textbox around it.
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virtual bool canBeSavedAsInlineCharacter() const { return true; }
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/// load from XML - when loading
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virtual void load( QDomElement &framesetElem, bool loadFrames = true );
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KWFrame* loadOasisFrame( const QDomElement& tag, KoOasisContext& context );
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/// load from XML - when pasting from clipboard
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virtual void fromXML( QDomElement &framesetElem, bool loadFrames = true, bool /*useNames*/ = true )
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{ load( framesetElem, loadFrames ); }
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virtual QString toPlainText() const { return QString::null; }
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//virtual void preparePrinting( QPainter *, QProgressDialog *, int & ) { }
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/** Called once the frameset has been completely loaded or constructed.
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* The default implementation calls updateFrames() and zoom(). Call the parent :) */
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virtual void finalize();
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virtual int paragraphs() { return 0; }
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virtual int paragraphsSelected() { return 0; }
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virtual bool statistics( QProgressDialog * /*progress*/, ulong & /*charsWithSpace*/, ulong & /*charsWithoutSpace*/, ulong & /*words*/,
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ulong & /*sentences*/, ulong & /*syllables*/, ulong & /*lines*/, bool /*process only selected */ ) { return true; }
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KWDocument* kWordDocument() const { return m_doc; }
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/// Return true if page @p num can be removed, as far as this frameset is concerned
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virtual bool canRemovePage( int num );
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//Note: none of those floating-frameset methods creates undo/redo
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//They are _called_ by the undo/redo commands.
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/// Make this frameset floating (anchored), as close to its current position as possible.
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void setFloating();
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/**
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* Make this frameset anchored, with the anchor at @p paragId,@p index in the text frameset @p textfs.
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* Also used during OASIS loading (placeHolderExists=true)
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*/
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void setAnchored( KWTextFrameSet* textfs, KoTextParag* parag, int index, bool placeHolderExists = false, bool repaint = true );
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/** Make this frameset floating, with the anchor at @p paragId,@p index in the text frameset @p textfs.
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* \deprecated
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*/
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void setAnchored( KWTextFrameSet* textfs, int paragId, int index, bool placeHolderExists = false, bool repaint = true );
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/** Note that this frameset has been made floating already, and store anchor position */
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void setAnchored( KWTextFrameSet* textfs );
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/// Make this frameset fixed, i.e. not anchored
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void setFixed();
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/// Return true if this frameset is floating (inline), false if it's fixed
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bool isFloating() const { return m_anchorTextFs; }
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/// Return the frameset in which our anchor is - assuming isFloating()
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KWTextFrameSet * anchorFrameset() const { return m_anchorTextFs; }
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/// Sets the frameset in which we are about to become inline. Used for OASIS loading.
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void setAnchorFrameset(KWTextFrameSet * textfs) { m_anchorTextFs = textfs; }
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/// Return the anchor object for this frame number
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KWAnchor * findAnchor( int frameNum );
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/// Tell this frame the format of it's anchor
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virtual void setAnchorFormat( KoTextFormat* /*format*/, int /*frameNum*/ ) {}
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/// Create an anchor for the floating frame identified by frameNum
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virtual KWAnchor * createAnchor( KoTextDocument *txt, int frameNum );
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/** Move the frame frameNum to the given position - this is called when
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the frame is anchored and the anchor moves (see KWAnchor). */
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virtual void moveFloatingFrame( int frameNum, const KoPoint &position );
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/** Get the size of the "floating frame" identified by frameNum.
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By default a real frame but not for tables. */
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virtual KoSize floatingFrameSize( int frameNum = 0 );
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/** Get the rect of the "floating frame" identified by frameNum,
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in coordinates RELATIVE TO THE PARENT FRAMESET.
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This is especially important for multi-parent inline frames. */
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KoRect floatingFrameRect( int frameNum = 0 );
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/** Get the 'baseline' to use for the "floating frame" identified by frameNum.
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-1 means same as the height (usual case) */
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virtual int floatingFrameBaseline( int /*frameNum*/ ) { return -1; }
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/// Store command for creating an anchored object
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virtual KCommand * anchoredObjectCreateCommand( int frameNum );
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/// Store command for deleting an anchored object
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virtual KCommand * anchoredObjectDeleteCommand( int frameNum );
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/** make this frameset part of a groupmanager
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* @see KWTableFrameSet
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*/
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void setGroupManager( KWTableFrameSet *gm ) { m_groupmanager = gm; }
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/** returns the groupManager this frameset belongs to. A Groupmanager is better known as a table */
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KWTableFrameSet *groupmanager()const { return m_groupmanager; }
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bool isProtectSize()const { return m_protectSize; }
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void setProtectSize( bool _b);
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/**
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* Returns true if the frameset is visible.
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* A frameset is visible if setVisible(false) wasn't called,
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* but also, for a header frameset, if m_doc->isHeaderVisible is true, etc.
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* For an "even pages header" frameset, the corresponding headerType setting
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* must be selected (i.e. different headers for even and odd pages).
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* @param viewMode pass the current viewmode when using this method for any visual
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* stuff (drawing, handling input etc.). Frameset visibility depends on the viewmode.
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*/
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bool isVisible( KWViewMode* viewMode = 0L ) const;
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/// set the visibility of the frameset.
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virtual void setVisible( bool v );
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/// get/set frameset name. For tables in particular, this _must_ be unique
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QString name() const { return m_name; }
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void setName( const QString &name );
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/// set frameBehavior on all frames, see KWFrame for specifics
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void setFrameBehavior( KWFrame::FrameBehavior fb );
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/// set newFrameBehavior on all frames, see KWFrame for specifics
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void setNewFrameBehavior( KWFrame::NewFrameBehavior nfb );
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#ifndef NDEBUG
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virtual void printDebug();
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virtual void printDebug( KWFrame * );
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#endif
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virtual KWTextFrameSet* nextTextObject( KWFrameSet * ) { return 0L;}
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bool isPaintedBy( KWFrameSet* fs ) const;
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/// set z-order for all frames
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virtual void setZOrder();
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virtual void setProtectContent ( bool protect ) = 0;
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virtual bool protectContent() const = 0;
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void setPageManager(KWPageManager *pm) { m_pageManager = pm; }
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KWPageManager* pageManager() const { return m_pageManager; }
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signals:
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/// Emitted when something has changed in this frameset,
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/// so that all views repaint it. KWDocument connects to it,
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/// and KWCanvas connects to KWDocument.
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void repaintChanged( KWFrameSet * frameset );
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void sigFrameAdded(KWFrame*);
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void sigFrameRemoved(KWFrame*);
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void sigNameChanged(KWFrameSet*);
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protected:
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/// save the common attributes for the frameset
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void saveCommon( QDomElement &parentElem, bool saveFrames );
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/**Determine the clipping rectangle for drawing the contents of @p frame with @p painter
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* in the rectangle delimited by @p crect.
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* This determines where to clip the painter to draw the contents of a given frame
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*/
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QRegion frameClipRegion( QPainter * painter, KWFrame *frame, const QRect & crect,
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KWViewMode * viewMode );
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void deleteAnchor( KWAnchor * anchor );
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virtual void deleteAnchors();
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virtual void createAnchors( KoTextParag * parag, int index, bool placeHolderExists = false, bool repaint = true );
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KWDocument *m_doc; // Document
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QPtrList<KWFrame> m_frames; // Our frames
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// Cached info for optimization
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/// This array provides a direct access to the frames on page N
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QPtrVector< QPtrList<KWFrame> > m_framesInPage;
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/// always equal to m_framesInPage[0].first()->pageNumber() :)
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int m_firstPage;
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/// always empty, for convenience in @ref framesInPage
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QPtrList<KWFrame> m_emptyList; // ## make static pointer to save memory ?
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Info m_info;
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KWTableFrameSet *m_groupmanager;
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bool m_visible;
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bool m_protectSize;
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QString m_name;
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KWTextFrameSet * m_anchorTextFs;
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KWordFrameSetIface *m_dcop;
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KWPageManager *m_pageManager;
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};
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#endif
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