stylestack.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.
*/
/* This file is part of the KDE project
   Copyright (c) 2003 Lukas Tinkl <lukas@kde.org>
   Copyright (c) 2003 David Faure <faure@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#ifndef STYLESTACK_H
#define STYLESTACK_H

#include <QDomElement>
#include <QStringList>
#include <QList>
#include <QStack>


class StyleStack
{
public:
    StyleStack();
    virtual ~StyleStack();

    enum Mode
    {
        OODraw1x = 1,
        OODraw2x = 2
    };

    void setMode( const StyleStack::Mode mode );

    void clear();

    void save();

    void restore();

    void pop();

    void push( const QDomElement& style );

    bool hasAttribute( const QString& name ) const;

    QString attribute( const QString& name ) const;

    bool hasAttribute( const QString& name, const QString& detail ) const;

    QString attribute( const QString& name, const QString& detail ) const;

    bool hasChildNode(const QString & name) const;

    QDomNode childNode(const QString & name) const;

    double fontSize() const;

    QString userStyleName() const;

private:

    // Node names to look for style properties
    QStringList m_nodeNames;

    // For save/restore: stack of "marks". Each mark is an index in m_stack.
    QStack<int> m_marks;

    // We use QValueList instead of QValueStack because we need access to all styles
    // not only the top one.
    QList<QDomElement> m_stack;

    // Get node name to look for according to property type
    void fillNodeNameList( QStringList& names, const StyleStack::Mode mode );

    // Search a specific attribute amongst childs of an element
    QDomElement searchAttribute( const QDomElement& element, const QStringList& names,const QString& name ) const;

    // Search a specific attribute amongst childs of an element
    QDomElement searchAttribute( const QDomElement& element, const QStringList& names, const QString& name, const QString& fullName ) const;
};


#endif /* STYLESTACK_H */