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/* This file is part of the KDE project
Copyright (C) 2006 Alfredo Beaumont Sainz <alfredo.beaumont@gmail.com>
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 TOKENSTYLEELEMENT_H
#define TOKENSTYLEELEMENT_H
#include "kformuladefs.h"
#include "sequenceelement.h"
KFORMULA_NAMESPACE_BEGIN
/**
* This class handles mathematical style attributes common to token elements,
* as explained in MathML Spec, Section 3.2.2.
*
* It is in charge of reading and saving elements' attributes and setting
* rendering information according to these attributes.
*/
class TokenStyleElement : public SequenceElement {
typedef SequenceElement inherited;
public:
TokenStyleElement( BasicElement* parent = 0 );
virtual void calcSizes( const ContextStyle& context,
ContextStyle::TextStyle tstyle,
ContextStyle::IndexStyle istyle,
StyleAttributes& style );
virtual void draw( QPainter& painter, const LuPixelRect& r,
const ContextStyle& context,
ContextStyle::TextStyle tstyle,
ContextStyle::IndexStyle istyle,
StyleAttributes& style,
const LuPixelPoint& parentOrigin );
protected:
virtual bool readAttributesFromMathMLDom( const QDomElement &element );
virtual void writeMathMLAttributes( QDomElement& element ) const ;
void setAbsoluteSize( double s, bool fontsize = false );
void setRelativeSize( double s, bool fontsize = false );
void setPixelSize( double s, bool fontsize = false );
void setCharStyle( CharStyle cs ) {
m_charStyle = cs;
m_customMathVariant = true;
}
CharStyle charStyle() const { return m_charStyle; }
void setCharFamily( CharFamily cf ) {
m_charFamily = cf;
m_customMathVariant = true;
}
CharFamily charFamily() const { return m_charFamily; }
void setMathColor( const QColor& c ) {
m_mathColor = c;
m_customMathColor = true;
}
QColor mathColor() const { return m_mathColor; }
void setMathBackground( const QColor& bg ) {
m_mathBackground = bg;
m_customMathBackground = true;
}
QColor mathBackground() const { return m_mathBackground; }
void setFontWeight( bool w ) {
m_fontWeight = w;
m_customFontWeight = true;
}
bool fontWeight() const { return m_fontWeight; }
void setFontStyle( bool s ) {
m_fontStyle = s;
m_customFontStyle = true;
}
bool fontStyle() const { return m_fontStyle; }
void setFontFamily( const QString& s ) {
m_fontFamily = s;
m_customFontFamily = true;
}
QString fontFamily() const { return m_fontFamily; }
void setColor( const QColor& c ) {
m_color = c;
m_customColor = true;
}
QColor color() const { return m_color; }
bool customMathVariant() const { return m_customMathVariant; }
bool customMathColor() const { return m_customMathColor; }
bool customMathBackground() const { return m_customMathBackground; }
bool customFontWeight() const { return m_customFontWeight; }
bool customFontStyle() const { return m_customFontStyle; }
bool customFontFamily() const { return m_customFontFamily; }
bool customColor() const { return m_customColor; }
virtual void setStyleSize( const ContextStyle& context, StyleAttributes& style );
/**
* Set the mathvariant related info in style stacks, including info for
* deprecated attributes. It may be redefined by token elements whose
* behaviour differs from default one (e.g. identifiers)
*/
virtual void setStyleVariant( StyleAttributes& style );
void setStyleColor( StyleAttributes& style );
virtual void setStyleBackground( StyleAttributes& style );
virtual void resetStyle( StyleAttributes& style );
/**
* Return RGB string from HTML Colors. See HTML Spec, section 6.5
*/
QString getHtmlColor( const QString& colorStr );
private:
double sizeFactor( const ContextStyle& context, double factor );
// MathML 2.0 attributes
SizeType m_mathSizeType;
double m_mathSize;
CharStyle m_charStyle;
CharFamily m_charFamily;
QColor m_mathColor;
QColor m_mathBackground;
// Deprecated MathML 1.01 attributes
SizeType m_fontSizeType;
double m_fontSize;
QString m_fontFamily;
QColor m_color;
bool m_fontWeight;
bool m_fontStyle;
// MathML 2.0 attributes set ?
bool m_customMathVariant;
bool m_customMathColor;
bool m_customMathBackground;
// Deprecated MathML 1.01 attributes set ?
bool m_customFontWeight;
bool m_customFontStyle;
bool m_customFontFamily;
bool m_customColor;
};
KFORMULA_NAMESPACE_END
#endif // TOKENSTYLEELEMENT_H
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