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Diffstat (limited to 'lib/kformula/tokenstyleelement.cpp')
| -rw-r--r-- | lib/kformula/tokenstyleelement.cpp | 624 |
1 files changed, 624 insertions, 0 deletions
diff --git a/lib/kformula/tokenstyleelement.cpp b/lib/kformula/tokenstyleelement.cpp new file mode 100644 index 000000000..fcce16e7c --- /dev/null +++ b/lib/kformula/tokenstyleelement.cpp @@ -0,0 +1,624 @@ +/* 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. +*/ + +#include <tqpainter.h> + +#include "basicelement.h" +#include "tokenstyleelement.h" + +KFORMULA_NAMESPACE_BEGIN + +TokenStyleElement::TokenStyleElement( BasicElement* parent ) : SequenceElement( parent ), + m_mathSizeType ( NoSize ), + m_charStyle( anyChar ), + m_charFamily( anyFamily ), + m_mathColor( "#000000" ), + m_mathBackground( "#FFFFFF" ), + m_fontSizeType( NoSize ), + m_customMathVariant( false ), + m_customMathColor( false ), + m_customMathBackground( false ), + m_customFontWeight( false ), + m_customFontStyle( false ), + m_customFontFamily( false ), + m_customColor( false ) +{ +} + +void TokenStyleElement::calcSizes( const ContextStyle& context, + ContextStyle::TextStyle tstyle, + ContextStyle::IndexStyle istyle, + StyleAttributes& style ) +{ + setStyleSize( context, style ); + setStyleVariant( style ); + setStyleColor( style ); + setStyleBackground( style ); + inherited::calcSizes( context, tstyle, istyle, style ); + resetStyle( style ); +} + +void TokenStyleElement::draw( TQPainter& painter, const LuPixelRect& r, + const ContextStyle& context, + ContextStyle::TextStyle tstyle, + ContextStyle::IndexStyle istyle, + StyleAttributes& style, + const LuPixelPoint& parentOrigin ) +{ + setStyleSize( context, style ); + setStyleVariant( style ); + setStyleColor( style ); + setStyleBackground( style ); + if ( style.background() != TQt::color0 ) { + painter.fillRect( context.layoutUnitToPixelX( parentOrigin.x() + getX() ), + context.layoutUnitToPixelY( parentOrigin.y() + getY() ), + context.layoutUnitToPixelX( getWidth() ), + context.layoutUnitToPixelY( getHeight() ), + style.background() ); + } + inherited::draw( painter, r, context, tstyle, istyle, style, parentOrigin ); + resetStyle( style ); +} + +bool TokenStyleElement::readAttributesFromMathMLDom( const TQDomElement& element ) +{ + if ( !BasicElement::readAttributesFromMathMLDom( element ) ) { + return false; + } + + // MathML Section 3.2.2 + TQString variantStr = element.attribute( "mathvariant" ); + if ( !variantStr.isNull() ) { + if ( variantStr == "normal" ) { + setCharStyle( normalChar ); + setCharFamily( normalFamily ); + } + else if ( variantStr == "bold" ) { + setCharStyle( boldChar ); + setCharFamily( normalFamily ); + } + else if ( variantStr == "italic" ) { + setCharStyle( italicChar ); + setCharFamily( normalFamily ); + } + else if ( variantStr == "bold-italic" ) { + setCharStyle( boldItalicChar ); + setCharFamily( normalFamily ); + } + else if ( variantStr == "double-struck" ) { + setCharStyle( normalChar ); + setCharFamily( doubleStruckFamily ); + } + else if ( variantStr == "bold-fraktur" ) { + setCharStyle( boldChar ); + setCharFamily( frakturFamily ); + } + else if ( variantStr == "script" ) { + setCharStyle( normalChar ); + setCharFamily( scriptFamily ); + } + else if ( variantStr == "bold-script" ) { + setCharStyle( boldChar ); + setCharFamily( scriptFamily ); + } + else if ( variantStr == "fraktur" ) { + setCharStyle( boldChar ); + setCharFamily( frakturFamily ); + } + else if ( variantStr == "sans-serif" ) { + setCharStyle( normalChar ); + setCharFamily( sansSerifFamily ); + } + else if ( variantStr == "bold-sans-serif" ) { + setCharStyle( boldChar ); + setCharFamily( sansSerifFamily ); + } + else if ( variantStr == "sans-serif-italic" ) { + setCharStyle( italicChar ); + setCharFamily( sansSerifFamily ); + } + else if ( variantStr == "sans-serif-bold-italic" ) { + setCharStyle( boldItalicChar ); + setCharFamily( sansSerifFamily ); + } + else if ( variantStr == "monospace" ) { + setCharStyle( normalChar ); + setCharFamily( monospaceFamily ); + } + } + + TQString sizeStr = element.attribute( "mathsize" ); + if ( !sizeStr.isNull() ) { + if ( sizeStr == "small" ) { + setRelativeSize( 0.8 ); // ### Arbitrary size + } + else if ( sizeStr == "normal" ) { + setRelativeSize( 1.0 ); + } + else if ( sizeStr == "big" ) { + setRelativeSize( 1.2 ); // ### Arbitrary size + } + else { + double s = getSize( sizeStr, &m_mathSizeType ); + switch ( m_mathSizeType ) { + case AbsoluteSize: + setAbsoluteSize( s ); + break; + case RelativeSize: + setRelativeSize( s ); + break; + case PixelSize: + setPixelSize( s ); + break; + default: + break; + } + } + } + + TQString colorStr = element.attribute( "mathcolor" ); + if ( !colorStr.isNull() ) { + if ( colorStr[0] != '#' ) { + setMathColor( TQColor( getHtmlColor( colorStr ) ) ); + } + else { + setMathColor( TQColor( colorStr ) ); + } + } + TQString backgroundStr = element.attribute( "mathbackground" ); + if ( !backgroundStr.isNull() ) { + if ( backgroundStr[0] != '#' ) { + setMathBackground( TQColor( getHtmlColor( backgroundStr ) ) ); + } + else { + setMathBackground( TQColor( backgroundStr ) ); + } + } + + // Deprecated attributes. See Section 3.2.2.1 + + sizeStr = element.attribute( "fontsize" ); + if ( ! sizeStr.isNull() ) { + if ( sizeStr == "small" ) { + setRelativeSize( 0.8, true ); // ### Arbitrary size + } + else if ( sizeStr == "normal" ) { + setRelativeSize( 1.0, true ); + } + else if ( sizeStr == "big" ) { + setRelativeSize( 1.2, true ); // ### Arbitrary size + } + else { + double s = getSize( sizeStr, &m_fontSizeType ); + switch ( m_fontSizeType ) { + case AbsoluteSize: + setAbsoluteSize( s, true ); + break; + case RelativeSize: + setRelativeSize( s, true ); + break; + case PixelSize: + setPixelSize( s, true ); + break; + default: + break; + } + } + } + + TQString styleStr = element.attribute( "fontstyle" ); + if ( ! styleStr.isNull() ) { + if ( styleStr.lower() == "italic" ) { + setFontStyle( true ); + } + else { + setFontStyle( false ); + } + } + + TQString weightStr = element.attribute( "fontweight" ); + if ( ! weightStr.isNull() ) { + if ( weightStr.lower() == "bold" ) { + setFontWeight( true ); + } + else { + setFontWeight( false ); + } + } + + TQString familyStr = element.attribute( "fontfamily" ); + if ( ! familyStr.isNull() ) { + setFontFamily( familyStr ); + } + + colorStr = element.attribute( "color" ); + if ( ! colorStr.isNull() ) { + if ( colorStr[0] != '#' ) { + setColor( TQColor( getHtmlColor( colorStr ) ) ); + } + else { + setColor( TQColor( colorStr ) ); + } + } + + return true; +} + +void TokenStyleElement::writeMathMLAttributes( TQDomElement& element ) const +{ + // mathvariant attribute + if ( customMathVariant() ) { + if ( charFamily() == normalFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "normal" ); + } + else if ( charStyle() == boldChar ) { + element.setAttribute( "mathvariant", "bold" ); + } + else if ( charStyle() == italicChar ) { + element.setAttribute( "mathvariant", "italic" ); + } + else if ( charStyle() == boldItalicChar ) { + element.setAttribute( "mathvariant", "bold-italic" ); + } + else { // anyChar or unknown, it's always an error + kdWarning( DEBUGID ) << "Mathvariant: unknown style for normal family\n"; + } + } + else if ( charFamily() == doubleStruckFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "double-struck" ); + } + else { // Shouldn't happen, it's a bug + kdWarning( DEBUGID ) << "Mathvariant: unknown style for double-struck family\n"; + } + } + else if ( charFamily() == frakturFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "fraktur" ); + } + else if ( charStyle() == boldChar ) { + element.setAttribute( "mathvariant", "bold-fraktur" ); + } + else { + kdWarning( DEBUGID ) << "Mathvariant: unknown style for fraktur family\n"; + } + } + else if ( charFamily() == scriptFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "script" ); + } + else if ( charStyle() == boldChar ) { + element.setAttribute( "mathvariant", "bold-script" ); + } + else { // Shouldn't happen, it's a bug + kdWarning( DEBUGID ) << "Mathvariant: unknown style for script family\n"; + } + } + else if ( charFamily() == sansSerifFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "sans-serif" ); + } + else if ( charStyle() == boldChar ) { + element.setAttribute( "mathvariant", "bold-sans-serif" ); + } + else if ( charStyle() == italicChar ) { + element.setAttribute( "mathvariant", "sans-serif-italic" ); + } + else if ( charStyle() == boldItalicChar ) { + element.setAttribute( "mathvariant", "sans-serif-bold-italic" ); + } + else { + kdWarning( DEBUGID ) << "Mathvariant: unknown style for sans serif family\n"; + } + } + else if ( charFamily() == monospaceFamily ) { + if ( charStyle() == normalChar ) { + element.setAttribute( "mathvariant", "monospace" ); + } + else { + kdWarning( DEBUGID ) << "Mathvariant: unknown style for monospace family\n"; + } + } + else { + kdWarning( DEBUGID ) << "Mathvariant: unknown family\n"; + } + } + + // mathsize attribute + switch ( m_mathSizeType ) { + case AbsoluteSize: + element.setAttribute( "mathsize", TQString( "%1pt" ).arg( m_mathSize ) ); + break; + case RelativeSize: + element.setAttribute( "mathsize", TQString( "%1%" ).arg( m_mathSize * 100.0 ) ); + break; + case PixelSize: + element.setAttribute( "mathsize", TQString( "%1px" ).arg( m_mathSize ) ); + break; + default: + break; + } + + // mathcolor attribute + if ( customMathColor() ) { + element.setAttribute( "mathcolor", mathColor().name() ); + } + + // mathbackground attribute + if ( customMathBackground() ) { + element.setAttribute( "mathbackground", mathBackground().name() ); + } + + // Deprecated MathML 1.01 Attributes + // fontsize attribute + switch ( m_fontSizeType ) { + case AbsoluteSize: + element.setAttribute( "fontsize", TQString( "%1pt" ).arg( m_fontSize ) ); + break; + case RelativeSize: + element.setAttribute( "fontsize", TQString( "%1%" ).arg( m_fontSize * 100.0 ) ); + break; + case PixelSize: + element.setAttribute( "fontsize", TQString( "%3px" ).arg( m_fontSize ) ); + break; + default: + break; + } + + // fontweight attribute + if ( customFontWeight() ) { + element.setAttribute( "fontweight", fontWeight() ? "bold" : "normal" ); + } + + // fontstyle attribute + if ( customFontStyle() ) { + element.setAttribute( "fontstyle", fontStyle() ? "italic" : "normal" ); + } + + // fontfamily attribute + if ( customFontFamily() ) { + element.setAttribute( "fontfamily", fontFamily() ); + } + + // color attribute + if ( customColor() ) { + element.setAttribute( "color", color().name() ); + } +} + +void TokenStyleElement::setAbsoluteSize( double s, bool fontsize ) +{ + kdDebug( DEBUGID) << "Setting absolute size: " << s << endl; + if ( fontsize ) { + m_fontSizeType = AbsoluteSize; + m_fontSize = s; + } + else { + m_mathSizeType = AbsoluteSize; + m_mathSize = s; + } +} + +void TokenStyleElement::setRelativeSize( double f, bool fontsize ) +{ + kdDebug( DEBUGID) << "Setting relative size: " << f << endl; + if ( fontsize ) { + m_fontSizeType = RelativeSize; + m_fontSize = f; + } + else { + m_mathSizeType = RelativeSize; + m_mathSize = f; + } +} + +void TokenStyleElement::setPixelSize( double px, bool fontsize ) +{ + kdDebug( DEBUGID) << "Setting pixel size: " << px << endl; + if ( fontsize ) { + m_fontSizeType = PixelSize; + m_fontSize = px; + } + else { + m_mathSizeType = PixelSize; + m_mathSize = px; + } +} + +void TokenStyleElement::setStyleSize( const ContextStyle& context, StyleAttributes& style ) +{ + style.setSizeFactor( sizeFactor( context, style.sizeFactor() ) ); +} + +void TokenStyleElement::setStyleVariant( StyleAttributes& style ) +{ + if ( customMathVariant() || style.customMathVariant() ) { + style.setCustomMathVariant ( true ); + style.setCustomFontWeight( false ); + style.setCustomFontStyle( false ); + style.setCustomFont( false ); + if ( customMathVariant() ) { + style.setCharFamily ( charFamily() ); + style.setCharStyle( charStyle() ); + } + else { + style.setCharFamily( style.charFamily() ); + style.setCharStyle( style.charStyle() ); + } + } + else { + style.setCustomMathVariant( false ); + if ( customFontFamily() ) { + style.setCustomFont( true ); + style.setFont( TQFont(fontFamily()) ); + } + + bool fontweight = false; + if ( customFontWeight() || style.customFontWeight() ) { + style.setCustomFontWeight( true ); + if ( customFontWeight() ) { + fontweight = fontWeight(); + } + else { + fontweight = style.fontWeight(); + } + style.setFontWeight( fontweight ); + } + else { + style.setCustomFontWeight( false ); + } + + bool fontstyle = false; + if ( style.customFontStyle() ) { + style.setCustomFontStyle( true ); + fontstyle = style.fontStyle(); + style.setFontStyle( fontstyle ); + } + else { + style.setCustomFontStyle( false ); + } + if ( customFontStyle() ) { + fontstyle = fontStyle(); + } + + if ( fontweight && fontstyle ) { + style.setCharStyle( boldItalicChar ); + } + else if ( fontweight && ! fontstyle ) { + style.setCharStyle( boldChar ); + } + else if ( ! fontweight && fontstyle ) { + style.setCharStyle( italicChar ); + } + else { + style.setCharStyle( normalChar ); + } + } +} + +void TokenStyleElement::setStyleColor( StyleAttributes& style ) +{ + if ( customMathColor() ) { + style.setColor( mathColor() ); + } + else if ( customColor() ) { + style.setColor( color() ); + } + else { + style.setColor( style.color() ); + } +} + +void TokenStyleElement::setStyleBackground( StyleAttributes& style ) +{ + if ( customMathBackground() ) { + style.setBackground( mathBackground() ); + } + else { + style.setBackground( style.background() ); + } +} + +void TokenStyleElement::resetStyle( StyleAttributes& style ) +{ + style.resetSize(); + style.resetCharStyle(); + style.resetCharFamily(); + style.resetColor(); + style.resetBackground(); + style.resetFontFamily(); + style.resetFontWeight(); + style.resetFontStyle(); +} + +double TokenStyleElement::sizeFactor( const ContextStyle& context, double factor ) +{ + double basesize = context.layoutUnitPtToPt( context.getBaseSize() ); + switch ( m_mathSizeType ) { + case AbsoluteSize: + return m_mathSize / basesize; + case RelativeSize: + return m_mathSize; + case PixelSize: + // 3.2.2 says v-unit instead of h-unit, that's why we use Y and not X + return context.pixelYToPt( m_mathSize ) / basesize; + case NoSize: + switch ( m_fontSizeType ) { + case AbsoluteSize: + return m_fontSize / basesize; + case RelativeSize: + return m_fontSize; + case PixelSize: + return context.pixelYToPt( m_fontSize ) / basesize; + default: + return factor; + } + default: + break; + } + kdWarning( DEBUGID ) << k_funcinfo << " Unknown SizeType\n"; + return factor; +} + +/** + * Return RGB string from HTML Colors. See HTML Spec, section 6.5 + */ +TQString TokenStyleElement::getHtmlColor( const TQString& colorStr ){ + + TQString colorname = colorStr.lower(); + + if ( colorname == "black" ) + return "#000000"; + if ( colorname == "silver" ) + return "#C0C0C0"; + if ( colorname == "gray" ) + return "#808080"; + if ( colorname == "white" ) + return "#FFFFFF"; + if ( colorname == "maroon" ) + return "#800000"; + if ( colorname == "red" ) + return "#FF0000"; + if ( colorname == "purple" ) + return "#800080"; + if ( colorname == "fuchsia" ) + return "#FF00FF"; + if ( colorname == "green" ) + return "#008000"; + if ( colorname == "lime" ) + return "#00FF00"; + if ( colorname == "olive" ) + return "#808000"; + if ( colorname == "yellow" ) + return "#FFFF00"; + if ( colorname == "navy" ) + return "#000080"; + if ( colorname == "blue") + return "#0000FF"; + if ( colorname == "teal" ) + return "#008080"; + if ( colorname == "aqua" ) + return "#00FFFF"; + kdWarning( DEBUGID ) << "Invalid HTML color: " << colorname << endl; + return "#FFFFFF"; // ### Arbitrary selection of default color +} + + +KFORMULA_NAMESPACE_END |