css_valueimpl.cpp

将konqueror浏览器移植到ARM9 2410中

void CSSValueListImpl::append(CSSValueImpl *val)
{
    m_values.append(val);
    val->ref();
}

DOM::DOMString CSSValueListImpl::cssText() const
{
    // ###
    return DOM::DOMString();
}

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

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl()
    : CSSValueImpl()
{
    m_type = 0;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(int ident)
    : CSSValueImpl()
{
    m_value.ident = ident;
    m_type = CSSPrimitiveValue::CSS_IDENT;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(float num, CSSPrimitiveValue::UnitTypes type)
{
    m_value.num = num;
    m_type = type;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(const DOMString &str, CSSPrimitiveValue::UnitTypes type)
{
    m_value.string = str.implementation();
    if(m_value.string) m_value.string->ref();
    m_type = type;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(const Counter &c)
{
    m_value.counter = c.handle();
    if (m_value.counter)
	m_value.counter->ref();
    m_type = CSSPrimitiveValue::CSS_COUNTER;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl( RectImpl *r)
{
    m_value.rect = r;
    if (m_value.rect)
	m_value.rect->ref();
    m_type = CSSPrimitiveValue::CSS_RECT;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(const RGBColor &rgb)
{
    m_value.rgbcolor = new RGBColor(rgb);
    m_type = CSSPrimitiveValue::CSS_RGBCOLOR;
}

CSSPrimitiveValueImpl::CSSPrimitiveValueImpl(const QColor &color)
{
    m_value.rgbcolor = new RGBColor(color);
    m_type = CSSPrimitiveValue::CSS_RGBCOLOR;
}

CSSPrimitiveValueImpl::~CSSPrimitiveValueImpl()
{
    cleanup();
}

void CSSPrimitiveValueImpl::cleanup()
{
    if(m_type == CSSPrimitiveValue::CSS_RGBCOLOR)
	delete m_value.rgbcolor;
    else if(m_type < CSSPrimitiveValue::CSS_STRING || m_type == CSSPrimitiveValue::CSS_IDENT)
    { }
    else if(m_type < CSSPrimitiveValue::CSS_COUNTER)
	if(m_value.string) m_value.string->deref();
    else if(m_type == CSSPrimitiveValue::CSS_COUNTER)
	m_value.counter->deref();
    else if(m_type == CSSPrimitiveValue::CSS_RECT)
	m_value.rect->deref();
    m_type = 0;
}

unsigned short CSSPrimitiveValueImpl::primitiveType() const
{
    return m_type;
}

void CSSPrimitiveValueImpl::setFloatValue( unsigned short unitType, float 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;
}

float CSSPrimitiveValueImpl::getFloatValue( unsigned short /*unitType*/)
{
    return m_value.num;
}

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
}

DOMStringImpl *CSSPrimitiveValueImpl::getStringValue(  )
{
    if(m_type < CSSPrimitiveValue::CSS_STRING) return 0;
    if(m_type > CSSPrimitiveValue::CSS_ATTR) return 0;
    if(m_type == CSSPrimitiveValue::CSS_IDENT)
    {
	// ###
	return 0;
    }
    return m_value.string;
}

CounterImpl *CSSPrimitiveValueImpl::getCounterValue(  )
{
    if(m_type != CSSPrimitiveValue::CSS_COUNTER) return 0;
    return m_value.counter;
}

RectImpl *CSSPrimitiveValueImpl::getRectValue(  )
{
    if(m_type != CSSPrimitiveValue::CSS_RECT) return 0;
    return m_value.rect;
}

RGBColor *CSSPrimitiveValueImpl::getRGBColorValue(  )
{
    if(m_type != CSSPrimitiveValue::CSS_RGBCOLOR) return 0;
    return m_value.rgbcolor;
}

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

bool CSSPrimitiveValueImpl::parseString( const DOMString &/*string*/, bool )
{
    // ###
    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 = DOMString( m_value.string );
	    break;
	case CSSPrimitiveValue::CSS_IDENT:
	    text = getValueName(m_value.ident);
	    break;
	case CSSPrimitiveValue::CSS_ATTR:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_COUNTER:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_RECT:
	    // ###
	    break;
	case CSSPrimitiveValue::CSS_RGBCOLOR:
	    text = m_value.rgbcolor->color().name();
	    break;
	default:
	    break;
    }
    return text;
}

int CSSPrimitiveValueImpl::computeLength(khtml::RenderStyle *style, DOM::DocumentImpl *doc )
{
    return ( int ) computeLengthFloat( style, doc );
}

float CSSPrimitiveValueImpl::computeLengthFloat(khtml::RenderStyle *style, DOM::DocumentImpl *doc )
{
    float dpiY = 72.; // fallback
    QPaintDeviceMetrics *devMetrics = doc->paintDeviceMetrics();
    if ( devMetrics )
        dpiY = devMetrics->logicalDpiY();
    if ( !khtml::printpainter && dpiY < 96 )
        dpiY = 96.;

    float factor = 1.;
    float documentScalingFactor = (float)doc->view()->part()->scalingFactor() / 100.;
    switch(m_type)
    {
    case CSSPrimitiveValue::CSS_EMS:
       	factor = style->font().pixelSize();
	documentScalingFactor = 1.;
	break;
    case CSSPrimitiveValue::CSS_EXS:
	{
        QFontMetrics fm = khtml::fontMetrics(style->font());
        QRect b = fm.boundingRect('x');
        factor = b.height();
	documentScalingFactor = 1.;
        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 m_value.num*factor*documentScalingFactor;

}

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

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

    if (docLoader)
	m_image = docLoader->requestImage(url, baseurl);
    else
	m_image = khtml::Cache::requestImage(0, url, baseurl);

    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);
}