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/***************************************************************************
kbufferranges.h - description
-------------------
begin : Sun Jun 22 2003
copyright : (C) 2003 by Friedrich W. H. Kossebau
email : Friedrich.W.H@Kossebau.de
***************************************************************************/
/***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License version 2 as published by the Free Software Foundation. *
* *
***************************************************************************/
#ifndef KHE_KBUFFERRANGES_H
#define KHE_KBUFFERRANGES_H
// lib specific
#include "kbufferlayout.h"
#include "kselection.h"
#include "ksectionlist.h"
#include "kcoordrangelist.h"
namespace KHE
{
/** a class to control all the ranges like marking and selections
* holds also all modified ranges and merges them so a tqrepaint can take its info from here
*
* @author Friedrich W. H. Kossebau
*/
class KBufferRanges
{
public:
KBufferRanges( KBufferLayout *L );
~KBufferRanges();
public: // modifcation access
void setMarking( KSection M );
void setSelectionStart( int StartIndex );
void setSelectionEnd( int StartIndex );
void setSelection( KSection S );
/** */
void setFirstWordSelection( KSection S );
/** */
void ensureWordSelectionForward( bool Forward );
/** removes marking and returns true if something changed */
void removeMarking();
/** removes selection with id and returns true if something changed */
void removeSelection( int id = 0 );
/** removes all but the standard selection and returns true if something changed */
void removeFurtherSelections();
void addChangedRange( KSection S );
void addChangedRange( int SI, int EI );
void addChangedRange( const KCoordRange &NewRange );
void resetChangedRanges();
void setModified( bool M = true );
/** removes all ranges */
void reset();
public: // value access
int noOfSelections() const;
int selectionStart() const;
int selectionEnd() const;
KSection selection() const;
KSection firstWordSelection() const;
int selectionLength() const;
bool isModified() const;
public: // calculated logic access
bool hasSelection() const;
bool hasMarking() const;
bool selectionStarted() const;
bool selectionJustStarted() const;
bool hasFirstWordSelection() const;
bool selectionIncludes( int Index ) const;
bool markingIncludes( int Index ) const;
// TODO: next three are deprecated
bool overlapsSelection( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
bool overlapsMarking( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
// bool overlapsChanges( int FirstIndex, int LastIndex, int *SI, int *EI ) const;
// bool overlapsChanges( KSection Indizes, KSection *ChangedRange ) const;
bool overlapsChanges( const KCoordRange &Range, KCoordRange *ChangedRange ) const;
const KSection *firstOverlappingSelection( KSection Range ) const;
const KSection *overlappingMarking( KSection Range ) const;
protected:
/** true if something changed */
bool Modified;
KSection Marking;
KSelection Selection;
/** memories first selected word on wordwise selection */
KSection FirstWordSelection;
KCoordRangeList ChangedRanges;
KBufferLayout *Layout;
};
inline int KBufferRanges::noOfSelections() const { return 1; }
inline int KBufferRanges::selectionStart() const { return Selection.start(); }
inline int KBufferRanges::selectionEnd() const { return Selection.end(); }
inline KSection KBufferRanges::selection() const { return Selection; }
inline KSection KBufferRanges::firstWordSelection() const { return FirstWordSelection; }
inline int KBufferRanges::selectionLength() const { return Selection.width(); }
inline bool KBufferRanges::isModified() const { return Modified; }
inline bool KBufferRanges::hasSelection() const { return Selection.isValid(); }
inline bool KBufferRanges::selectionStarted() const { return Selection.started(); }
inline bool KBufferRanges::selectionJustStarted() const { return Selection.justStarted(); }
inline bool KBufferRanges::hasFirstWordSelection() const { return FirstWordSelection.isValid(); }
inline bool KBufferRanges::hasMarking() const { return Marking.isValid(); }
inline bool KBufferRanges::selectionIncludes( int Index ) const { return Selection.includes( Index ); }
inline bool KBufferRanges::markingIncludes( int Index ) const { return Marking.includes( Index ); }
inline void KBufferRanges::setModified( bool M ) { Modified = M; }
}
#endif
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