String SVGTransform::valueAsString() const
{
const String& prefix = transformTypePrefixForParsing(m_type);
switch (m_type) {
case SVG_TRANSFORM_UNKNOWN:
return prefix;
case SVG_TRANSFORM_MATRIX: {
StringBuilder builder;
builder.append(prefix + String::number(m_matrix.a()) + ' ' + String::number(m_matrix.b()) + ' ' + String::number(m_matrix.c()) + ' ' +
String::number(m_matrix.d()) + ' ' + String::number(m_matrix.e()) + ' ' + String::number(m_matrix.f()) + ')');
return builder.toString();
}
case SVG_TRANSFORM_TRANSLATE:
return prefix + String::number(m_matrix.e()) + ' ' + String::number(m_matrix.f()) + ')';
case SVG_TRANSFORM_SCALE:
return prefix + String::number(m_matrix.xScale()) + ' ' + String::number(m_matrix.yScale()) + ')';
case SVG_TRANSFORM_ROTATE: {
double angleInRad = deg2rad(m_angle);
double cosAngle = cos(angleInRad);
double sinAngle = sin(angleInRad);
float cx = narrowPrecisionToFloat(cosAngle != 1 ? (m_matrix.e() * (1 - cosAngle) - m_matrix.f() * sinAngle) / (1 - cosAngle) / 2 : 0);
float cy = narrowPrecisionToFloat(cosAngle != 1 ? (m_matrix.e() * sinAngle / (1 - cosAngle) + m_matrix.f()) / 2 : 0);
if (cx || cy)
return prefix + String::number(m_angle) + ' ' + String::number(cx) + ' ' + String::number(cy) + ')';
return prefix + String::number(m_angle) + ')';
}
case SVG_TRANSFORM_SKEWX:
return prefix + String::number(m_angle) + ')';
case SVG_TRANSFORM_SKEWY:
return prefix + String::number(m_angle) + ')';
}
ASSERT_NOT_REACHED();
return emptyString();
}
String SVGTransform::valueAsString() const
{
double arguments[6];
size_t argumentCount = 0;
switch (m_transformType) {
case SVG_TRANSFORM_UNKNOWN:
return emptyString();
case SVG_TRANSFORM_MATRIX: {
arguments[argumentCount++] = m_matrix.a();
arguments[argumentCount++] = m_matrix.b();
arguments[argumentCount++] = m_matrix.c();
arguments[argumentCount++] = m_matrix.d();
arguments[argumentCount++] = m_matrix.e();
arguments[argumentCount++] = m_matrix.f();
break;
}
case SVG_TRANSFORM_TRANSLATE: {
arguments[argumentCount++] = m_matrix.e();
arguments[argumentCount++] = m_matrix.f();
break;
}
case SVG_TRANSFORM_SCALE: {
arguments[argumentCount++] = m_matrix.a();
arguments[argumentCount++] = m_matrix.d();
break;
}
case SVG_TRANSFORM_ROTATE: {
arguments[argumentCount++] = m_angle;
double angleInRad = deg2rad(m_angle);
double cosAngle = cos(angleInRad);
double sinAngle = sin(angleInRad);
float cx = narrowPrecisionToFloat(cosAngle != 1 ? (m_matrix.e() * (1 - cosAngle) - m_matrix.f() * sinAngle) / (1 - cosAngle) / 2 : 0);
float cy = narrowPrecisionToFloat(cosAngle != 1 ? (m_matrix.e() * sinAngle / (1 - cosAngle) + m_matrix.f()) / 2 : 0);
if (cx || cy) {
arguments[argumentCount++] = cx;
arguments[argumentCount++] = cy;
}
break;
}
case SVG_TRANSFORM_SKEWX:
arguments[argumentCount++] = m_angle;
break;
case SVG_TRANSFORM_SKEWY:
arguments[argumentCount++] = m_angle;
break;
}
ASSERT(argumentCount <= WTF_ARRAY_LENGTH(arguments));
StringBuilder builder;
builder.append(transformTypePrefixForParsing(m_transformType));
for (size_t i = 0; i < argumentCount; ++i) {
if (i)
builder.append(' ');
builder.appendNumber(arguments[i]);
}
builder.append(')');
return builder.toString();
}
