bytearrayrowscolumntextrenderer.h

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/*
    This file is part of the Okteta Kasten module, made within the KDE community.

    Copyright 2008 Friedrich W. H. Kossebau <kossebau@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) version 3, or any
    later version accepted by the membership of KDE e.V. (or its
    successor approved by the membership of KDE e.V.), which shall
    act as a proxy defined in Section 6 of version 3 of the license.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef BYTEARRAYROWSCOLUMNTEXTRENDERER_H
#define BYTEARRAYROWSCOLUMNTEXTRENDERER_H

// lib
#include "abstractcolumntextrenderer.h"
// Okteta gui
#include <coordrange.h>
// Okteta core
#include <oktetacore.h>
// Qt
#include <QtCore/QChar>

namespace Okteta {
class ValueCodec;
class CharCodec;
class AbstractByteArrayModel;
}

namespace Kasten2
{

// TODO: offset should be set in renderFirstLine, calculated using coordRange,
// in constructor instead take startOffset
class ByteArrayRowsColumnTextRenderer : public AbstractColumnTextRenderer
{
  private:
    static const int DefaultTRByteSpacingWidth = 1;
    static const int TRGroupSpacingWidth = 2;

  public:
    ByteArrayRowsColumnTextRenderer( const Okteta::AbstractByteArrayModel* byteArrayModel, Okteta::Address offset,
        const Okteta::CoordRange& coordRange,
        int noOfBytesPerLine, int byteSpacingWidth, int noOfGroupedBytes,
        int visibleCodings,
        Okteta::ValueCoding valueCoding,
        const QString& charCodecName, QChar substituteChar, QChar undefinedChar );
    virtual ~ByteArrayRowsColumnTextRenderer();

  public: // AbstractColumnTextRenderer API
    virtual void renderFirstLine( QTextStream* stream, int lineIndex ) const;
    virtual void renderNextLine( QTextStream* stream, bool isSubline ) const;
    virtual int noOfSublinesNeeded() const;

  protected:
    void renderLine( QTextStream* stream, bool isSubline ) const;

  protected:
    void setWidths( int byteWidth, int byteSpacingWidth, int noOfGroupedBytes );

  protected:
    const Okteta::AbstractByteArrayModel* mByteArrayModel;

    const Okteta::CoordRange mCoordRange;

    const int mNoOfBytesPerLine;

    const int mVisibleCodings;
    const Okteta::ValueCodec* mValueCodec;
    const Okteta::CharCodec* mCharCodec;
    const QChar mSubstituteChar;
    const QChar mUndefinedChar;

    mutable int mRenderLine;
    mutable Okteta::Address mOffset;

    int mNoOfCharsPerLine;
    // positions where to paint the
    int* const mLinePositions;
};

}

#endif