stylereader.h

/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
 *   Copyright (C) 2004 by Riku Leino                                      *
 *   tsoots@gmail.com                                                      *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program 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 General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
 ***************************************************************************/

#ifndef STYLEREADER_H
#define STYLEREADER_H

#include "scconfig.h"

#ifdef HAVE_XML26
 #include <libxml/SAX2.h>
#else
 #include <libxml/SAX.h>
#endif
#include <QMap>
#include <QXmlAttributes>
#include <gtstyle.h>
#include <gtwriter.h>


enum BulletType {
    Bullet,
    Number,
    LowerRoman,
    UpperRoman,
    LowerAlpha,
    UpperAlpha,
    Graphic
};

class ListLevel
{
public:
    ListLevel(uint level,
              BulletType btype,
              const QString &prefix,
              const QString &suffix,
              const QString &bullet,
              uint displayLevels = 1,
              uint startValue = 0);
    ~ListLevel();
    QString bulletString();
    QString bullet();
    QString prefix();
    QString suffix();
    void advance();
    void reset();
    uint level();
    uint displayLevels();
private:
    uint m_level;
    BulletType m_btype;
    QString m_prefix;
    QString m_suffix;
    QString m_bullet;
    uint m_displayLevels;
    uint m_next;
    static const QString lowerUnits[10];
    static const QString lowerTens[10];
    static const QString lowerHundreds[10];
    static const QString lowerThousands[4];
    static const QString upperUnits[10];
    static const QString upperTens[10];
    static const QString upperHundreds[10];
    static const QString upperThousands[4];
    static const QString lowerAlphabets[27];
    static const QString upperAlphabets[27];
    QString lowerRoman(uint n);
    QString upperRoman(uint n);
    QString lowerAlpha(uint n);
    QString upperAlpha(uint n);
};

class ListStyle
{
public:
    ListStyle(const QString &name, uint currentLevel = 1);
    ~ListStyle();
    void addLevel(uint level, ListLevel *llevel);
    QString bullet();
    void advance();
    void setLevel(uint level);
    void resetLevel();
    QString& name();
private:
    QString m_name;
    uint m_currentLevel;
    uint m_count;
    ListLevel* levels[11];
};

typedef QMap<QString, gtStyle*> StyleMap;
typedef QMap<QString, QString> FontMap;
typedef QMap<QString, int> CounterMap;
typedef QMap<QString, ListStyle*> ListMap;

class StyleReader
{
private:
    static StyleReader *sreader;
    gtWriter *writer;
    bool importTextOnly;
    bool usePrefix;
    bool packStyles;
    bool readProperties;
    QString docname;
    StyleMap styles;
    StyleMap listParents;
    StyleMap attrsStyles;
    CounterMap pstyleCounts;
    FontMap fonts;
    ListMap lists;
    gtStyle* currentStyle;
    gtStyle* parentStyle;
    bool inList;
    QString currentList;
    ListStyle *currentListStyle;
    bool defaultStyleCreated;
    double getSize(QString s, double parentSize = -1);
    void styleProperties(const QXmlAttributes& attrs);
    void defaultStyle(const QXmlAttributes& attrs);
    void styleStyle(const QXmlAttributes& attrs);
    void tabStop(const QXmlAttributes& attrs);
    void setupFrameStyle();
public:
    StyleReader(QString documentName, gtWriter *wr, bool textOnly, bool prefix, bool combineStyles = true);
    ~StyleReader();
    bool updateStyle(gtStyle* style, gtStyle* parent2Style, const QString& key, const QString& value);
    static void startElement(void *user_data, const xmlChar * fullname, const xmlChar ** atts);
    static void endElement(void *user_data, const xmlChar * name);
    bool startElement(const QString&, const QString&, const QString &name, const QXmlAttributes &attrs);
    bool endElement(const QString&, const QString&, const QString &name);
    void parse(QString fileName);
    gtStyle* getDefaultStyle(void);
    gtStyle* getStyle(const QString& name);
    void setStyle(const QString& name, gtStyle* style);
    QString getFont(const QString& key);
    ListStyle *getList(const QString &name);
};

#endif