third_party/WebKit/Source/core/svg/SVGPoint.cpp

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#include "core/svg/SVGPoint.h"

#include "core/svg/SVGAnimationElement.h"
#include "core/svg/SVGParserUtilities.h"
#include "platform/transforms/AffineTransform.h"
#include "wtf/text/StringBuilder.h"
#include "wtf/text/WTFString.h"

namespace blink {

SVGPoint::SVGPoint() {}

SVGPoint::SVGPoint(const FloatPoint& point) : m_value(point) {}

SVGPoint* SVGPoint::clone() const {
  return SVGPoint::create(m_value);
}

template <typename CharType>
SVGParsingError SVGPoint::parse(const CharType*& ptr, const CharType* end) {
  float x = 0;
  float y = 0;
  if (!parseNumber(ptr, end, x) ||
      !parseNumber(ptr, end, y, DisallowWhitespace))
    return SVGParseStatus::ExpectedNumber;

  if (skipOptionalSVGSpaces(ptr, end)) {
    // Nothing should come after the second number.
    return SVGParseStatus::TrailingGarbage;
  }

  m_value = FloatPoint(x, y);
  return SVGParseStatus::NoError;
}

FloatPoint SVGPoint::matrixTransform(const AffineTransform& transform) const {
  double newX, newY;
  transform.map(static_cast<double>(x()), static_cast<double>(y()), newX, newY);
  return FloatPoint::narrowPrecision(newX, newY);
}

SVGParsingError SVGPoint::setValueAsString(const String& string) {
  if (string.isEmpty()) {
    m_value = FloatPoint(0.0f, 0.0f);
    return SVGParseStatus::NoError;
  }

  if (string.is8Bit()) {
    const LChar* ptr = string.characters8();
    const LChar* end = ptr + string.length();
    return parse(ptr, end);
  }
  const UChar* ptr = string.characters16();
  const UChar* end = ptr + string.length();
  return parse(ptr, end);
}

String SVGPoint::valueAsString() const {
  StringBuilder builder;
  builder.appendNumber(x());
  builder.append(' ');
  builder.appendNumber(y());
  return builder.toString();
}

void SVGPoint::add(SVGPropertyBase* other, SVGElement*) {
  // SVGPoint is not animated by itself
  ASSERT_NOT_REACHED();
}

void SVGPoint::calculateAnimatedValue(SVGAnimationElement* animationElement,
                                      float percentage,
                                      unsigned repeatCount,
                                      SVGPropertyBase* fromValue,
                                      SVGPropertyBase* toValue,
                                      SVGPropertyBase* toAtEndOfDurationValue,
                                      SVGElement*) {
  // SVGPoint is not animated by itself
  ASSERT_NOT_REACHED();
}

float SVGPoint::calculateDistance(SVGPropertyBase* to,
                                  SVGElement* contextElement) {
  // SVGPoint is not animated by itself
  ASSERT_NOT_REACHED();
  return 0.0f;
}

}  // namespace blink