df007e1a7a
In preparation of radial gradient support, move common logic into an abstract base class (SkSVGGradient). Change-Id: Ie5361048ca8fddd9070c573c8daef0d0f57dc95e Reviewed-on: https://skia-review.googlesource.com/57108 Commit-Queue: Florin Malita <fmalita@chromium.org> Reviewed-by: Robert Phillips <robertphillips@google.com>
72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkGradientShader.h"
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#include "SkSVGLinearGradient.h"
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#include "SkSVGRenderContext.h"
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#include "SkSVGValue.h"
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SkSVGLinearGradient::SkSVGLinearGradient() : INHERITED(SkSVGTag::kLinearGradient) {}
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void SkSVGLinearGradient::setX1(const SkSVGLength& x1) {
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fX1 = x1;
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}
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void SkSVGLinearGradient::setY1(const SkSVGLength& y1) {
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fY1 = y1;
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}
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void SkSVGLinearGradient::setX2(const SkSVGLength& x2) {
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fX2 = x2;
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}
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void SkSVGLinearGradient::setY2(const SkSVGLength& y2) {
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fY2 = y2;
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}
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void SkSVGLinearGradient::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
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switch (attr) {
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case SkSVGAttribute::kX1:
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if (const auto* x1 = v.as<SkSVGLengthValue>()) {
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this->setX1(*x1);
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}
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break;
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case SkSVGAttribute::kY1:
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if (const auto* y1 = v.as<SkSVGLengthValue>()) {
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this->setY1(*y1);
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}
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break;
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case SkSVGAttribute::kX2:
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if (const auto* x2 = v.as<SkSVGLengthValue>()) {
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this->setX2(*x2);
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}
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break;
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case SkSVGAttribute::kY2:
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if (const auto* y2 = v.as<SkSVGLengthValue>()) {
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this->setY2(*y2);
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}
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break;
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default:
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this->INHERITED::onSetAttribute(attr, v);
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}
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}
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sk_sp<SkShader> SkSVGLinearGradient::onMakeShader(const SkSVGRenderContext& ctx,
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const SkColor* colors, const SkScalar* pos,
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int count, SkShader::TileMode tm,
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const SkMatrix& localMatrix) const {
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const auto& lctx = ctx.lengthContext();
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const auto x1 = lctx.resolve(fX1, SkSVGLengthContext::LengthType::kHorizontal);
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const auto y1 = lctx.resolve(fY1, SkSVGLengthContext::LengthType::kVertical);
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const auto x2 = lctx.resolve(fX2, SkSVGLengthContext::LengthType::kHorizontal);
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const auto y2 = lctx.resolve(fY2, SkSVGLengthContext::LengthType::kVertical);
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const SkPoint pts[2] = { {x1, y1}, {x2, y2}};
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return SkGradientShader::MakeLinear(pts, colors, pos, count, tm, 0, &localMatrix);
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}
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