WingHexExplorer2/3rdparty/qcodeedit2/lib/document/qdocument_p.h

/****************************************************************************
**
** Copyright (C) 2006-2009 fullmetalcoder <fullmetalcoder@hotmail.fr>
**
** This file is part of the Edyuk project <http://edyuk.org>
**
** This file may be used under the terms of the GNU General Public License
** version 3 as published by the Free Software Foundation and appearing in the
** file GPL.txt included in the packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef _QDOCUMENT_P_H_
#define _QDOCUMENT_P_H_

#include "qce-config.h"

/*!
        \file qdocument_p.h
        \brief Definition of the private document API
*/

#include "qdocument.h"
#include "qdocumentcursor.h"
#include "qdocumentline.h"

#include <QDateTime>
#include <QFont>
#include <QFontMetrics>
#include <QHash>
#include <QQueue>
#include <QStack>
#include <QStringList>
#include <QUndoCommand>
#include <QUndoStack>

class QDocument;
class QDocumentBuffer;
class QDocumentPrivate;
class QDocumentCommand;
class QDocumentCommandBlock;

class QLanguageDefinition;

Q_DECLARE_TYPEINFO(QDocumentSelection, Q_PRIMITIVE_TYPE);

#include "qdocumentline_p.h"

#include "qdocumentcursor_p.h"

class QCE_EXPORT QDocumentPrivate {
    friend class QEditConfig;

    friend class QDocument;
    friend class QDocumentCommand;
    friend class QDocumentLineHandle;
    friend class QDocumentCursorHandle;

public:
    QDocumentPrivate(QDocument *d);
    ~QDocumentPrivate();

    void execute(QDocumentCommand *cmd);

    void draw(QPainter *p, QDocument::PaintContext &cxt);

    QDocumentLineHandle *lineForPosition(int position) const;
    int position(const QDocumentLineHandle *l) const;

    QDocumentLineHandle *at(int line) const;
    int indexOf(const QDocumentLineHandle *l) const;

    QDocumentIterator index(const QDocumentLineHandle *l);
    QDocumentConstIterator index(const QDocumentLineHandle *l) const;

    QDocumentLineHandle *next(const QDocumentLineHandle *l) const;
    QDocumentLineHandle *previous(const QDocumentLineHandle *l) const;

    void adjustWidth(int l);
    // int checkWidth(QDocumentLineHandle *l, int w);
    // int checkWidth(QDocumentLineHandle *l, const QString& s);

    void setWidth();
    void setHeight();

    void setFont(const QFont &f);

    void beginChangeBlock();
    void endChangeBlock();

    inline int maxMarksPerLine() const { return m_maxMarksPerLine; }

    inline bool hasMarks() const { return m_marks.count(); }

    QList<int> marks(QDocumentLineHandle *h) const;

    void addMark(QDocumentLineHandle *h, int mid);
    void toggleMark(QDocumentLineHandle *h, int mid);
    void removeMark(QDocumentLineHandle *h, int mid);

    int findNextMark(int id, int from = 0, int until = -1);
    int findPreviousMark(int id, int from = -1, int until = 0);

    int getNextGroupId();
    void releaseGroupId(int groupId);
    void clearMatches(int gid);
    void flushMatches(int gid);
    void addMatch(int gid, int line, int pos, int len, int format);

    void emitFormatsChange(int line, int lines);
    void emitContentsChange(int line, int lines);

    int visualLine(int textLine) const;
    int textLine(int visualLine, int *wrap = 0) const;
    void hideEvent(int line, int count);
    void showEvent(int line, int count);

    void setWidth(int width);

    void emitContentsChanged();

    void emitLineDeleted(QDocumentLineHandle *h);
    void emitMarkChanged(QDocumentLineHandle *l, int m, bool on);

    inline QDocumentIterator begin() { return m_lines.begin(); }
    inline QDocumentIterator end() { return m_lines.end(); }

    inline QDocumentConstIterator constBegin() const {
        return m_lines.constBegin();
    }
    inline QDocumentConstIterator constEnd() const {
        return m_lines.constEnd();
    }

protected:
    void updateHidden(int line, int count);
    void updateWrapped(int line, int count);

    void insertLines(int after, const QList<QDocumentLineHandle *> &l);
    void removeLines(int after, int n);

    void emitWidthChanged();
    void emitHeightChanged();

    void updateFormatCache();
    void setFormatScheme(QFormatScheme *f);
    void tunePainter(QPainter *p, int fid);

private:
    QDocument *m_doc;
    QUndoStack m_commands;
    QDocumentCursor *m_editCursor;

    bool m_suspend, m_deleting;
    QQueue<QPair<int, int>> m_notifications;

    QMap<int, int> m_hidden;
    QMap<int, int> m_wrapped;
    QVector<QPair<QDocumentLineHandle *, int>> m_largest;

    struct Match {
        int line;
        QFormatRange range;
        QDocumentLineHandle *h = nullptr;
    };

    struct MatchList : QList<Match> {
        MatchList() : index(0) {}

        int index;
    };

    int m_lastGroupId;
    QList<int> m_freeGroupIds;
    QHash<int, MatchList> m_matches;

    bool m_constrained;
    int m_width, m_height;

    int m_tabStop;

    QFont m_font;
    bool m_fixedPitch;
    QFontMetrics m_fontMetrics;
    int m_leftMargin;
    QDocument::WhiteSpaceMode m_showSpaces;
    int m_lineHeight;
    int m_lineSpacing;
    int m_spaceWidth;
    int m_ascent;
    int m_descent;
    int m_leading;
    int m_wrapMargin;

    QFormatScheme *m_formatScheme;
    QLanguageDefinition *m_language;
    static QFormatScheme *m_defaultFormatScheme;

    QVector<QFont> m_fonts;

    static QList<QDocumentPrivate *> m_documents;

    int m_maxMarksPerLine;
    QHash<QDocumentLineHandle *, QList<int>> m_marks;
    QHash<QDocumentLineHandle *, QPair<int, int>> m_status;

    int _nix, _dos, _mac;
    QString m_lineEndingString;
    QDocument::LineEnding m_lineEnding;

    QDateTime m_lastModified;

    QDocumentBuffer *m_buffer;
    QVector<QDocumentLineHandle *> m_lines;
};

#endif