lineoffsetvector.h

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// edbee - Copyright (c) 2012-2025 by Rick Blommers and contributors
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include "edbee/exports.h"
 
#include <QVector>
 
#include "gapvector.h"
 
 
namespace edbee {
 
class TextBufferChange;
 
 

class EDBEE_EXPORT LineOffsetVector {
public:
//    struct LineChange {
//        int line;                   ///< the first line that's going to be replaced
//        int lineCount;              ///< the number of lines that are replaced
//        int newLineCount;           ///< the number of lines added/removed
//        int offsetDelta;            ///< the change in offset
//        QVector<int> newOffsets;    ///< the new offsets
//    };
 
 
    LineOffsetVector();
 
    void applyChange( TextBufferChange change );
 
    int at( int idx ) const;
    int length() const;
 
    int findLineFromOffset( int offset );
 
    int offsetDelta() { return offsetDelta_; }
    int offsetDeltaIndex() { return offsetDeltaIndex_; }
 
    void appendOffset( int offset );

    GapVector<int> offsetList() { return offsetList_; }
 
protected:
    int searchOffsetIgnoringOffsetDelta(int offset, int org_start, int org_end );
 
    void moveDeltaToIndex( int index );
    void changeOffsetDelta( int index, int delta );
 
public:
    QString toUnitTestString();
    void initForUnitTesting( int offsetDelta, int offsetDeltaIndex, ... );
 
 
private:
 
    GapVector<int> offsetList_;    
    int offsetDelta_;              
    int offsetDeltaIndex_;         
 
 
friend class LineOffsetVectorTest;
 
 
};
class EDBEE_EXPORT LineOffsetVector {…};
 
} // edbee