textlinedata.h

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#pragma once

#include <QObject>

#include "edbee/util/gapvector.h"

namespace edbee {


enum TextLineDataPredefinedFields {
    LineTextScopesField=0,
//    LineDataMarkers,      /// Bookmarks etc
    PredefinedFieldCount=1
};


class Change;
class TextLineDataManager;



class TextLineData
{
public:
    TextLineData() {}
    virtual ~TextLineData() {}
//    bool undoable() = 0;
};

template<typename T>
class BasicTextLineData : public TextLineData
{
public:
    BasicTextLineData( const T& val ) : value_(val) {}
    T value() { return value_; }
    void setValue( const T& value ) { value_ = value; }

private:
    T value_;
};

typedef BasicTextLineData<QString> QStringTextLineData;


//-------

class TextLineDataList
{
public:
    TextLineDataList( );
    virtual ~TextLineDataList();
    virtual void destroy( TextLineDataManager* manager );

    void give( TextLineDataManager* manager, int field, TextLineData *dataItem );
    TextLineData* take( TextLineDataManager* manager, int field );
    TextLineData* at( TextLineDataManager* manager, int field );

    void realloc( TextLineDataManager* manager, int oldFieldPerLine, int newFieldsPerLine );

private:
    TextLineData** lineDataList_;   
};

//-------

class TextLineDataManager : public QObject
{
Q_OBJECT

public:
    TextLineDataManager( int fieldsPerLine = PredefinedFieldCount);
    virtual ~TextLineDataManager();

    void clear();


    void give(int line, int field, TextLineData *dataItem );
    TextLineData* take(int line, int field );
    TextLineData* get( int line, int field );

    int fieldsPerLine() { return fieldsPerLine_; }
    void setFieldsPerLine( int count );

    int length() const { return textLineDataList_.length(); }
    TextLineDataList* at(int idx) const { return textLineDataList_.at(idx); }

    // internal functions
    Change* createLinesReplacedChange( int lineStart, int lineCount, int newLineCount );
    TextLineDataList* takeList( int line );
    void giveList( int line, TextLineDataList* list );

    void fillWithEmpty( int line, int length, int newLength );
    void replace( int line, int length, TextLineDataList** items, int newLength );

    GapVector<TextLineDataList*>* textLineDataList() { return &textLineDataList_; }

protected:

    void destroyRange( int line, int length );


public slots:

//    void linesReplaced( int lineStart, int lineCount, int newLineCount );
//    void dumpGapvector();
signals:

    void lineDataChanged( int line, int length, int newLength );   

private:

    int fieldsPerLine_;                                  
    GapVector<TextLineDataList*>  textLineDataList_;    
//    NoGapVector<TextLineDataList*>  textLineDataList_;
};


} // edbee