#include "config.h"
#include "SVGPathData.h"
#if ENABLE(SVG)
#include "Path.h"
#include "SVGCircleElement.h"
#include "SVGEllipseElement.h"
#include "SVGLineElement.h"
#include "SVGNames.h"
#include "SVGPathElement.h"
#include "SVGPathUtilities.h"
#include "SVGPolygonElement.h"
#include "SVGPolylineElement.h"
#include "SVGRectElement.h"
#include <wtf/HashMap.h>
namespace WebCore {
static void updatePathFromCircleElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::circleTag));
SVGCircleElement* circle = static_cast<SVGCircleElement*>(element);
SVGLengthContext lengthContext(element);
float r = circle->r().value(lengthContext);
if (r > 0)
path.addEllipse(FloatRect(circle->cx().value(lengthContext) - r, circle->cy().value(lengthContext) - r, r * 2, r * 2));
}
static void updatePathFromEllipseElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::ellipseTag));
SVGEllipseElement* ellipse = static_cast<SVGEllipseElement*>(element);
SVGLengthContext lengthContext(element);
float rx = ellipse->rx().value(lengthContext);
if (rx <= 0)
return;
float ry = ellipse->ry().value(lengthContext);
if (ry <= 0)
return;
path.addEllipse(FloatRect(ellipse->cx().value(lengthContext) - rx, ellipse->cy().value(lengthContext) - ry, rx * 2, ry * 2));
}
static void updatePathFromLineElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::lineTag));
SVGLineElement* line = static_cast<SVGLineElement*>(element);
SVGLengthContext lengthContext(element);
path.moveTo(FloatPoint(line->x1().value(lengthContext), line->y1().value(lengthContext)));
path.addLineTo(FloatPoint(line->x2().value(lengthContext), line->y2().value(lengthContext)));
}
static void updatePathFromPathElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::pathTag));
buildPathFromByteStream(static_cast<SVGPathElement*>(element)->pathByteStream(), path);
}
static void updatePathFromPolygonElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::polygonTag));
SVGPolygonElement* polygon = static_cast<SVGPolygonElement*>(element);
SVGPointList& points = polygon->pointList();
if (points.isEmpty())
return;
path.moveTo(points.first());
unsigned size = points.size();
for (unsigned i = 1; i < size; ++i)
path.addLineTo(points.at(i));
path.closeSubpath();
}
static void updatePathFromPolylineElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::polylineTag));
SVGPolylineElement* polyline = static_cast<SVGPolylineElement*>(element);
SVGPointList& points = polyline->pointList();
if (points.isEmpty())
return;
path.moveTo(points.first());
unsigned size = points.size();
for (unsigned i = 1; i < size; ++i)
path.addLineTo(points.at(i));
}
static void updatePathFromRectElement(SVGElement* element, Path& path)
{
ASSERT(element->hasTagName(SVGNames::rectTag));
SVGRectElement* rect = static_cast<SVGRectElement*>(element);
SVGLengthContext lengthContext(element);
float width = rect->width().value(lengthContext);
if (width <= 0)
return;
float height = rect->height().value(lengthContext);
if (height <= 0)
return;
float x = rect->x().value(lengthContext);
float y = rect->y().value(lengthContext);
bool hasRx = rect->hasAttribute(SVGNames::rxAttr);
bool hasRy = rect->hasAttribute(SVGNames::ryAttr);
if (hasRx || hasRy) {
float rx = rect->rx().value(lengthContext);
float ry = rect->ry().value(lengthContext);
if (!hasRx)
rx = ry;
else if (!hasRy)
ry = rx;
path.addRoundedRect(FloatRect(x, y, width, height), FloatSize(rx, ry), Path::PreferBezierRoundedRect);
return;
}
path.addRect(FloatRect(x, y, width, height));
}
void updatePathFromGraphicsElement(SVGElement* element, Path& path)
{
ASSERT(element);
ASSERT(path.isEmpty());
typedef void (*PathUpdateFunction)(SVGElement*, Path&);
static HashMap<AtomicStringImpl*, PathUpdateFunction>* map = 0;
if (!map) {
map = new HashMap<AtomicStringImpl*, PathUpdateFunction>;
map->set(SVGNames::circleTag.localName().impl(), updatePathFromCircleElement);
map->set(SVGNames::ellipseTag.localName().impl(), updatePathFromEllipseElement);
map->set(SVGNames::lineTag.localName().impl(), updatePathFromLineElement);
map->set(SVGNames::pathTag.localName().impl(), updatePathFromPathElement);
map->set(SVGNames::polygonTag.localName().impl(), updatePathFromPolygonElement);
map->set(SVGNames::polylineTag.localName().impl(), updatePathFromPolylineElement);
map->set(SVGNames::rectTag.localName().impl(), updatePathFromRectElement);
}
if (PathUpdateFunction pathUpdateFunction = map->get(element->localName().impl()))
(*pathUpdateFunction)(element, path);
}
}
#endif // ENABLE(SVG)