fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkGradientShader.h" |
| 9 | #include "SkSVGLinearGradient.h" |
| 10 | #include "SkSVGRenderContext.h" |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 11 | #include "SkSVGValue.h" |
| 12 | |
| 13 | SkSVGLinearGradient::SkSVGLinearGradient() : INHERITED(SkSVGTag::kLinearGradient) {} |
| 14 | |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 15 | void SkSVGLinearGradient::setX1(const SkSVGLength& x1) { |
| 16 | fX1 = x1; |
| 17 | } |
| 18 | |
| 19 | void SkSVGLinearGradient::setY1(const SkSVGLength& y1) { |
| 20 | fY1 = y1; |
| 21 | } |
| 22 | |
| 23 | void SkSVGLinearGradient::setX2(const SkSVGLength& x2) { |
| 24 | fX2 = x2; |
| 25 | } |
| 26 | |
| 27 | void SkSVGLinearGradient::setY2(const SkSVGLength& y2) { |
| 28 | fY2 = y2; |
| 29 | } |
| 30 | |
| 31 | void SkSVGLinearGradient::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) { |
| 32 | switch (attr) { |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 33 | case SkSVGAttribute::kX1: |
| 34 | if (const auto* x1 = v.as<SkSVGLengthValue>()) { |
| 35 | this->setX1(*x1); |
| 36 | } |
| 37 | break; |
| 38 | case SkSVGAttribute::kY1: |
| 39 | if (const auto* y1 = v.as<SkSVGLengthValue>()) { |
| 40 | this->setY1(*y1); |
| 41 | } |
| 42 | break; |
| 43 | case SkSVGAttribute::kX2: |
| 44 | if (const auto* x2 = v.as<SkSVGLengthValue>()) { |
| 45 | this->setX2(*x2); |
| 46 | } |
| 47 | break; |
| 48 | case SkSVGAttribute::kY2: |
| 49 | if (const auto* y2 = v.as<SkSVGLengthValue>()) { |
| 50 | this->setY2(*y2); |
| 51 | } |
| 52 | break; |
| 53 | default: |
| 54 | this->INHERITED::onSetAttribute(attr, v); |
| 55 | } |
| 56 | } |
| 57 | |
Florin Malita | df007e1 | 2017-10-09 15:14:13 -0400 | [diff] [blame] | 58 | sk_sp<SkShader> SkSVGLinearGradient::onMakeShader(const SkSVGRenderContext& ctx, |
| 59 | const SkColor* colors, const SkScalar* pos, |
| 60 | int count, SkShader::TileMode tm, |
| 61 | const SkMatrix& localMatrix) const { |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 62 | const auto& lctx = ctx.lengthContext(); |
| 63 | const auto x1 = lctx.resolve(fX1, SkSVGLengthContext::LengthType::kHorizontal); |
| 64 | const auto y1 = lctx.resolve(fY1, SkSVGLengthContext::LengthType::kVertical); |
| 65 | const auto x2 = lctx.resolve(fX2, SkSVGLengthContext::LengthType::kHorizontal); |
| 66 | const auto y2 = lctx.resolve(fY2, SkSVGLengthContext::LengthType::kVertical); |
| 67 | |
| 68 | const SkPoint pts[2] = { {x1, y1}, {x2, y2}}; |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 69 | |
Florin Malita | df007e1 | 2017-10-09 15:14:13 -0400 | [diff] [blame] | 70 | return SkGradientShader::MakeLinear(pts, colors, pos, count, tm, 0, &localMatrix); |
fmalita | 28d5b72 | 2016-09-12 17:06:47 -0700 | [diff] [blame] | 71 | } |