blob: f7833b1dc4d15e39db7ad116f0831d63ac4d63e2 [file] [log] [blame]
/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkColorSpace.h"
#include "include/effects/SkGradientShader.h"
#include "modules/svg/include/SkSVGLinearGradient.h"
#include "modules/svg/include/SkSVGRenderContext.h"
#include "modules/svg/include/SkSVGValue.h"
SkSVGLinearGradient::SkSVGLinearGradient() : INHERITED(SkSVGTag::kLinearGradient) {}
bool SkSVGLinearGradient::parseAndSetAttribute(const char* name, const char* value) {
return INHERITED::parseAndSetAttribute(name, value) ||
this->setX1(SkSVGAttributeParser::parse<SkSVGLength>("x1", name, value)) ||
this->setY1(SkSVGAttributeParser::parse<SkSVGLength>("y1", name, value)) ||
this->setX2(SkSVGAttributeParser::parse<SkSVGLength>("x2", name, value)) ||
this->setY2(SkSVGAttributeParser::parse<SkSVGLength>("y2", name, value));
}
sk_sp<SkShader> SkSVGLinearGradient::onMakeShader(const SkSVGRenderContext& ctx,
const SkColor4f* colors, const SkScalar* pos,
int count, SkTileMode tm,
const SkMatrix& localMatrix) const {
const SkSVGLengthContext lctx =
this->getGradientUnits().type() == SkSVGObjectBoundingBoxUnits::Type::kObjectBoundingBox
? SkSVGLengthContext({1, 1})
: ctx.lengthContext();
const auto x1 = lctx.resolve(fX1, SkSVGLengthContext::LengthType::kHorizontal);
const auto y1 = lctx.resolve(fY1, SkSVGLengthContext::LengthType::kVertical);
const auto x2 = lctx.resolve(fX2, SkSVGLengthContext::LengthType::kHorizontal);
const auto y2 = lctx.resolve(fY2, SkSVGLengthContext::LengthType::kVertical);
const SkPoint pts[2] = { {x1, y1}, {x2, y2}};
return SkGradientShader::MakeLinear(pts, colors, nullptr, pos, count, tm, 0, &localMatrix);
}