#include "config.h"
#include "SVGPathData.h"
#include "Path.h"
#include "RenderElement.h"
#include "RenderStyle.h"
#include "SVGCircleElement.h"
#include "SVGEllipseElement.h"
#include "SVGLengthContext.h"
#include "SVGLineElement.h"
#include "SVGNames.h"
#include "SVGPathElement.h"
#include "SVGPathUtilities.h"
#include "SVGPoint.h"
#include "SVGPointList.h"
#include "SVGPolygonElement.h"
#include "SVGPolylineElement.h"
#include "SVGRectElement.h"
#include <wtf/HashMap.h>
namespace WebCore {
static void updatePathFromCircleElement(SVGElement* element, Path& path)
{
ASSERT(is<SVGCircleElement>(element));
SVGLengthContext lengthContext(element);
RenderElement* renderer = element->renderer();
if (!renderer)
return;
auto& style = renderer->style();
float r = lengthContext.valueForLength(style.svgStyle().r());
if (r > 0) {
float cx = lengthContext.valueForLength(style.svgStyle().cx(), LengthModeWidth);
float cy = lengthContext.valueForLength(style.svgStyle().cy(), LengthModeHeight);
path.addEllipse(FloatRect(cx - r, cy - r, r * 2, r * 2));
}
}
static void updatePathFromEllipseElement(SVGElement* element, Path& path)
{
RenderElement* renderer = element->renderer();
if (!renderer)
return;
auto& style = renderer->style();
SVGLengthContext lengthContext(element);
float rx = lengthContext.valueForLength(style.svgStyle().rx(), LengthModeWidth);
if (rx <= 0)
return;
float ry = lengthContext.valueForLength(style.svgStyle().ry(), LengthModeHeight);
if (ry <= 0)
return;
float cx = lengthContext.valueForLength(style.svgStyle().cx(), LengthModeWidth);
float cy = lengthContext.valueForLength(style.svgStyle().cy(), LengthModeHeight);
path.addEllipse(FloatRect(cx - rx, cy - ry, rx * 2, ry * 2));
}
static void updatePathFromLineElement(SVGElement* element, Path& path)
{
SVGLineElement* line = downcast<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)
{
buildPathFromByteStream(downcast<SVGPathElement>(element)->pathByteStream(), path);
}
static void updatePathFromPolygonElement(SVGElement* element, Path& path)
{
auto& points = downcast<SVGPolygonElement>(element)->animatedPoints()->values();
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)
{
auto& points = downcast<SVGPolylineElement>(element)->animatedPoints()->values();
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)
{
RenderElement* renderer = element->renderer();
if (!renderer)
return;
auto& style = renderer->style();
SVGLengthContext lengthContext(element);
float width = lengthContext.valueForLength(style.width(), LengthModeWidth);
if (width <= 0)
return;
float height = lengthContext.valueForLength(style.height(), LengthModeHeight);
if (height <= 0)
return;
float x = lengthContext.valueForLength(style.svgStyle().x(), LengthModeWidth);
float y = lengthContext.valueForLength(style.svgStyle().y(), LengthModeHeight);
float rx = lengthContext.valueForLength(style.svgStyle().rx(), LengthModeWidth);
float ry = lengthContext.valueForLength(style.svgStyle().ry(), LengthModeHeight);
bool hasRx = rx > 0;
bool hasRy = ry > 0;
if (hasRx || hasRy) {
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);
}
}