css_valueimpl.cpp

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}

void CSSPrimitiveValueImpl::cleanup()
{
    switch(m_type) {
    case CSSPrimitiveValue::CSS_STRING:
    case CSSPrimitiveValue::CSS_URI:
    case CSSPrimitiveValue::CSS_ATTR:
	if(m_value.string) m_value.string->deref();
        break;
    case CSSPrimitiveValue::CSS_COUNTER:
	m_value.counter->deref();
        break;
    case CSSPrimitiveValue::CSS_RECT:
	m_value.rect->deref();
    default:
        break;
    }

    m_type = 0;
}

int CSSPrimitiveValueImpl::computeLength( khtml::RenderStyle *style, QPaintDeviceMetrics *devMetrics )
{
    double result = computeLengthFloat( style, devMetrics );
    // This conversion is imprecise, often resulting in values of, e.g., 44.99998.  We
    // need to go ahead and round if we're really close to the next integer value.
    int intResult = (int)(result + (result < 0 ? -0.01 : +0.01));
    return intResult;
}

double CSSPrimitiveValueImpl::computeLengthFloat( khtml::RenderStyle *style, QPaintDeviceMetrics *devMetrics )
{
    unsigned short type = primitiveType();

    double dpiY = 72.; // fallback
    if ( devMetrics )
        dpiY = devMetrics->logicalDpiY();
    if ( !khtml::printpainter && dpiY < 96 )
        dpiY = 96.;

    double factor = 1.;
    switch(type)
    {
    case CSSPrimitiveValue::CSS_EMS:
        factor = style->font().pixelSize();
        break;
    case CSSPrimitiveValue::CSS_EXS:
	{
        QFontMetrics fm = style->fontMetrics();
#ifdef APPLE_CHANGES
        factor = fm.xHeight();
#else
        QRect b = fm.boundingRect('x');
        factor = b.height();
#endif
        break;
	}
    case CSSPrimitiveValue::CSS_PX:
        break;
    case CSSPrimitiveValue::CSS_CM:
	factor = dpiY/2.54; //72dpi/(2.54 cm/in)
        break;
    case CSSPrimitiveValue::CSS_MM:
	factor = dpiY/25.4;
        break;
    case CSSPrimitiveValue::CSS_IN:
        factor = dpiY;
        break;
    case CSSPrimitiveValue::CSS_PT:
        factor = dpiY/72.;
        break;
    case CSSPrimitiveValue::CSS_PC:
        // 1 pc == 12 pt
        factor = dpiY*12./72.;
        break;
    default:
        return -1;
    }

    return floatValue(type)*factor;
}

void CSSPrimitiveValueImpl::setFloatValue( unsigned short unitType, double floatValue, int &exceptioncode )
{
    exceptioncode = 0;
    cleanup();
    // ### check if property supports this type
    if(m_type > CSSPrimitiveValue::CSS_DIMENSION) {
	exceptioncode = CSSException::SYNTAX_ERR + CSSException::_EXCEPTION_OFFSET;
	return;
    }
    //if(m_type > CSSPrimitiveValue::CSS_DIMENSION) throw DOMException(DOMException::INVALID_ACCESS_ERR);
    m_value.num = floatValue;
    m_type = unitType;
}

void CSSPrimitiveValueImpl::setStringValue( unsigned short stringType, const DOMString &stringValue, int &exceptioncode )
{
    exceptioncode = 0;
    cleanup();
    //if(m_type < CSSPrimitiveValue::CSS_STRING) throw DOMException(DOMException::INVALID_ACCESS_ERR);
    //if(m_type > CSSPrimitiveValue::CSS_ATTR) throw DOMException(DOMException::INVALID_ACCESS_ERR);
    if(m_type < CSSPrimitiveValue::CSS_STRING || m_type > CSSPrimitiveValue::CSS_ATTR) {
	exceptioncode = CSSException::SYNTAX_ERR + CSSException::_EXCEPTION_OFFSET;
	return;
    }
    if(stringType != CSSPrimitiveValue::CSS_IDENT)
    {
	m_value.string = stringValue.implementation();
	m_value.string->ref();
	m_type = stringType;
    }
    // ### parse ident
}

unsigned short CSSPrimitiveValueImpl::cssValueType() const
{
    return CSSValue::CSS_PRIMITIVE_VALUE;
}

bool CSSPrimitiveValueImpl::parseString( const DOMString &/*string*/, bool )
{
    // ###
    kdDebug() << "WARNING: CSSPrimitiveValueImpl::parseString, unimplemented, was called" << endl;
    return false;
}

int CSSPrimitiveValueImpl::getIdent()
{
    if(m_type != CSSPrimitiveValue::CSS_IDENT) return 0;
    return m_value.ident;
}

DOM::DOMString CSSPrimitiveValueImpl::cssText() const
{
    // ### return the original value instead of a generated one (e.g. color
    // name if it was specified) - check what spec says about this
    DOMString text;
    switch ( m_type ) {
	case CSSPrimitiveValue::CSS_UNKNOWN:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_NUMBER:
	    text = DOMString(QString::number( (int)m_value.num ));
	    break;
	case CSSPrimitiveValue::CSS_PERCENTAGE:
	    text = DOMString(QString::number( m_value.num ) + "%");
	    break;
	case CSSPrimitiveValue::CSS_EMS:
	    text = DOMString(QString::number( m_value.num ) + "em");
	    break;
	case CSSPrimitiveValue::CSS_EXS:
	    text = DOMString(QString::number( m_value.num ) + "ex");
	    break;
	case CSSPrimitiveValue::CSS_PX:
	    text = DOMString(QString::number( m_value.num ) + "px");
	    break;
	case CSSPrimitiveValue::CSS_CM:
	    text = DOMString(QString::number( m_value.num ) + "cm");
	    break;
	case CSSPrimitiveValue::CSS_MM:
	    text = DOMString(QString::number( m_value.num ) + "mm");
	    break;
	case CSSPrimitiveValue::CSS_IN:
	    text = DOMString(QString::number( m_value.num ) + "in");
	    break;
	case CSSPrimitiveValue::CSS_PT:
	    text = DOMString(QString::number( m_value.num ) + "pt");
	    break;
	case CSSPrimitiveValue::CSS_PC:
	    text = DOMString(QString::number( m_value.num ) + "pc");
	    break;
	case CSSPrimitiveValue::CSS_DEG:
	    text = DOMString(QString::number( m_value.num ) + "deg");
	    break;
	case CSSPrimitiveValue::CSS_RAD:
	    text = DOMString(QString::number( m_value.num ) + "rad");
	    break;
	case CSSPrimitiveValue::CSS_GRAD:
	    text = DOMString(QString::number( m_value.num ) + "grad");
	    break;
	case CSSPrimitiveValue::CSS_MS:
	    text = DOMString(QString::number( m_value.num ) + "ms");
	    break;
	case CSSPrimitiveValue::CSS_S:
	    text = DOMString(QString::number( m_value.num ) + "s");
	    break;
	case CSSPrimitiveValue::CSS_HZ:
	    text = DOMString(QString::number( m_value.num ) + "hz");
	    break;
	case CSSPrimitiveValue::CSS_KHZ:
	    text = DOMString(QString::number( m_value.num ) + "khz");
	    break;
	case CSSPrimitiveValue::CSS_DIMENSION:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_STRING:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_URI:
            text  = "url(";
	    text += DOMString( m_value.string );
            text += ")";
	    break;
	case CSSPrimitiveValue::CSS_IDENT:
	    text = getValueName(m_value.ident);
	    break;
	case CSSPrimitiveValue::CSS_ATTR:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_COUNTER:
            text = "counter(";
            text += m_value.counter->m_identifier;
            text += ")";
            // ### add list-style and separator
	    break;
	case CSSPrimitiveValue::CSS_RECT:
        {
            RectImpl* rectVal = getRectValue();
            text = "rect(";
            text += rectVal->top()->cssText() + " ";
            text += rectVal->right()->cssText() + " ";
            text += rectVal->bottom()->cssText() + " ";
            text += rectVal->left()->cssText() + ")";
        }
        break;
	case CSSPrimitiveValue::CSS_RGBCOLOR:
	    text = QColor(m_value.rgbcolor).name();
	    break;
	default:
	    break;
    }
    return text;
}

// -----------------------------------------------------------------

RectImpl::RectImpl()
{
    m_top = 0;
    m_right = 0;
    m_bottom = 0;
    m_left = 0;
}

RectImpl::~RectImpl()
{
    if (m_top) m_top->deref();
    if (m_right) m_right->deref();
    if (m_bottom) m_bottom->deref();
    if (m_left) m_left->deref();
}

void RectImpl::setTop( CSSPrimitiveValueImpl *top )
{
    if( top ) top->ref();
    if ( m_top ) m_top->deref();
    m_top = top;
}

void RectImpl::setRight( CSSPrimitiveValueImpl *right )
{
    if( right ) right->ref();
    if ( m_right ) m_right->deref();
    m_right = right;
}

void RectImpl::setBottom( CSSPrimitiveValueImpl *bottom )
{
    if( bottom ) bottom->ref();
    if ( m_bottom ) m_bottom->deref();
    m_bottom = bottom;
}

void RectImpl::setLeft( CSSPrimitiveValueImpl *left )
{
    if( left ) left->ref();
    if ( m_left ) m_left->deref();
    m_left = left;
}

// -----------------------------------------------------------------

CSSImageValueImpl::CSSImageValueImpl(const DOMString &url, const StyleBaseImpl* style)
    : CSSPrimitiveValueImpl(url, CSSPrimitiveValue::CSS_URI)
{
    khtml::DocLoader *docLoader = 0;
    const StyleBaseImpl *root = style;
    while (root->parent())
	root = root->parent();
    if (root->isCSSStyleSheet())
	docLoader = static_cast<const CSSStyleSheetImpl*>(root)->docLoader();

    m_image = docLoader->requestImage(url);
    if(m_image) m_image->ref(this);
}

CSSImageValueImpl::CSSImageValueImpl()
    : CSSPrimitiveValueImpl(CSS_VAL_NONE)
{
    m_image = 0;
}

CSSImageValueImpl::~CSSImageValueImpl()
{
    if(m_image) m_image->deref(this);
}

// ------------------------------------------------------------------------

FontFamilyValueImpl::FontFamilyValueImpl( const QString &string)
: CSSPrimitiveValueImpl( DOMString(string), CSSPrimitiveValue::CSS_STRING)
{
    static const QRegExp parenReg(" \\(.*\\)$");
    static const QRegExp braceReg(" \\[.*\\]$");

    parsedFontName = string;
    // a language tag is often added in braces at the end. Remove it.
    parsedFontName.replace(parenReg, QString::null);
    // remove [Xft] qualifiers
    parsedFontName.replace(braceReg, QString::null);

#ifndef APPLE_CHANGES
    const QString &available = KHTMLSettings::availableFamilies();

    parsedFontName = parsedFontName.lower();
    // kdDebug(0) << "searching for face '" << parsedFontName << "'" << endl;

    int pos = available.find( ',' + parsedFontName + ',', 0, false );
    if ( pos == -1 ) {
        // many pages add extra MSs to make sure it's windows only ;(
        if ( parsedFontName.startsWith( "ms " ) )
            parsedFontName = parsedFontName.mid( 3 );
        if ( parsedFontName.endsWith( " ms" ) )
            parsedFontName.truncate( parsedFontName.length() - 3 );
        pos = available.find( ",ms " + parsedFontName + ',', 0, false );
        if ( pos == -1 )
            pos = available.find( ',' + parsedFontName + " ms,", 0, false );
    }

    if ( pos != -1 ) {
       ++pos;
       int p = available.find(',', pos);
       assert( p != -1 ); // available is supposed to start and end with ,
       parsedFontName = available.mid( pos, p - pos);
       // kdDebug(0) << "going for '" << parsedFontName << "'" << endl;
    } else
        parsedFontName = QString::null;

#endif // !APPLE_CHANGES
}

FontValueImpl::FontValueImpl()
    : style(0), variant(0), weight(0), size(0), lineHeight(0), family(0)
{
}

FontValueImpl::~FontValueImpl()
{
    delete style;
    delete variant;
    delete weight;
    delete size;
    delete lineHeight;
    delete family;
}

DOMString FontValueImpl::cssText() const
{
    // font variant weight size / line-height family

    DOMString result("");

    if (style) {
	result += style->cssText();
    }
    if (variant) {
	if (result.length() > 0) {
	    result += " ";
	}
	result += variant->cssText();
    }
    if (weight) {
	if (result.length() > 0) {
	    result += " ";
	}
	result += weight->cssText();
    }
    if (size) {
	if (result.length() > 0) {
	    result += " ";
	}
	result += size->cssText();
    }
    if (lineHeight) {
	if (!size) {
	    result += " ";
	}
	result += "/";
	result += lineHeight->cssText();
    }
    if (family) {
	if (result.length() > 0) {
	    result += " ";
	}
	result += family->cssText();
    }

    return result;
}

QuotesValueImpl::QuotesValueImpl()
    : levels(0)
{
}

DOMString QuotesValueImpl::cssText() const
{
    return "\"" + data.join("\" \"") + "\"";
}

void QuotesValueImpl::addLevel(const QString& open, const QString& close)
{
    data.append(open);
    data.append(close);
    levels++;
}

QString QuotesValueImpl::openQuote(int level) const
{
    if (levels == 0) return "";
    level--; // increments are calculated before openQuote is called
//     kdDebug( 6080 ) << "Open quote level:" << level << endl;
    if (level < 0) level = 0;
    else
    if (level >= (int) levels) level = (int) (levels-1);
    return data[level*2];
}

QString QuotesValueImpl::closeQuote(int level) const
{
    if (levels == 0) return "";
//     kdDebug( 6080 ) << "Close quote level:" << level << endl;
    if (level < 0) level = 0;
    else
    if (level >= (int) levels) level = (int) (levels-1);
    return data[level*2+1];
}

// Used for text-shadow and box-shadow
ShadowValueImpl::ShadowValueImpl(CSSPrimitiveValueImpl* _x, CSSPrimitiveValueImpl* _y,
                                 CSSPrimitiveValueImpl* _blur, CSSPrimitiveValueImpl* _color)
    :x(_x), y(_y), blur(_blur), color(_color)
{}

ShadowValueImpl::~ShadowValueImpl()
{
    delete x;
    delete y;
    delete blur;
    delete color;
}

DOMString ShadowValueImpl::cssText() const
{
    DOMString text("");
    if (color) {
        text += color->cssText();
    }
    if (x) {
        if (text.length() > 0) {
            text += " ";
        }
        text += x->cssText();
    }
    if (y) {
        if (text.length() > 0) {
            text += " ";
        }
        text += y->cssText();
    }
    if (blur) {
        if (text.length() > 0) {
            text += " ";
        }
        text += blur->cssText();
    }

    return text;
}

DOMString CounterActImpl::cssText() const
{
    DOMString text(m_counter);
    text += DOMString(QString::number(m_value));

    return text;
}

DOMString CSSProperty::cssText() const
{
    return getPropertyName(m_id) + DOMString(": ") + m_value->cssText() + (m_bImportant ? DOMString(" !important") : DOMString()) + DOMString("; ");
}