SVGFitToViewBox.cpp [plain text]
#include "config.h"
#if SVG_SUPPORT
#include "DeprecatedStringList.h"
#include "Attr.h"
#include "StringImpl.h"
#include "SVGNames.h"
#include "SVGRect.h"
#include "SVGSVGElement.h"
#include "SVGAnimatedRect.h"
#include "SVGFitToViewBox.h"
#include "SVGPreserveAspectRatio.h"
#include "SVGAnimatedPreserveAspectRatio.h"
using namespace WebCore;
SVGFitToViewBox::SVGFitToViewBox()
{
}
SVGFitToViewBox::~SVGFitToViewBox()
{
}
SVGAnimatedRect *SVGFitToViewBox::viewBox() const
{
if(!m_viewBox)
{
m_viewBox = new SVGAnimatedRect(0); }
return m_viewBox.get();
}
SVGAnimatedPreserveAspectRatio *SVGFitToViewBox::preserveAspectRatio() const
{
if(!m_preserveAspectRatio)
{
m_preserveAspectRatio = new SVGAnimatedPreserveAspectRatio(0); }
return m_preserveAspectRatio.get();
}
void SVGFitToViewBox::parseViewBox(StringImpl *str)
{
DeprecatedString viewbox = String(str).deprecatedString();
DeprecatedStringList points = DeprecatedStringList::split(' ', viewbox.replace(',', ' ').simplifyWhiteSpace());
if (points.count() == 4) {
viewBox()->baseVal()->setX(points[0].toDouble());
viewBox()->baseVal()->setY(points[1].toDouble());
viewBox()->baseVal()->setWidth(points[2].toDouble());
viewBox()->baseVal()->setHeight(points[3].toDouble());
} else
fprintf(stderr, "WARNING: Malformed viewbox string: %s (l: %i)", viewbox.ascii(), viewbox.length());
}
SVGMatrix *SVGFitToViewBox::viewBoxToViewTransform(float viewWidth, float viewHeight) const
{
SVGRect *viewBoxRect = viewBox()->baseVal();
if(viewBoxRect->width() == 0 || viewBoxRect->height() == 0)
return SVGSVGElement::createSVGMatrix();
return preserveAspectRatio()->baseVal()->getCTM(viewBoxRect->x(),
viewBoxRect->y(), viewBoxRect->width(), viewBoxRect->height(),
0, 0, viewWidth, viewHeight);
}
bool SVGFitToViewBox::parseMappedAttribute(MappedAttribute *attr)
{
if (attr->name() == SVGNames::viewBoxAttr)
{
parseViewBox(attr->value().impl());
return true;
}
else if (attr->name() == SVGNames::preserveAspectRatioAttr)
{
preserveAspectRatio()->baseVal()->parsePreserveAspectRatio(attr->value().impl());
return true;
}
return false;
}
#endif // SVG_SUPPORT