| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkSVGValue_DEFINED |
| #define SkSVGValue_DEFINED |
| |
| #include "experimental/svg/model/SkSVGTypes.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/SkNoncopyable.h" |
| |
| class SkSVGValue : public SkNoncopyable { |
| public: |
| enum class Type { |
| kClip, |
| kColor, |
| kDashArray, |
| kFillRule, |
| kLength, |
| kLineCap, |
| kLineJoin, |
| kNumber, |
| kPaint, |
| kPath, |
| kPoints, |
| kSpreadMethod, |
| kStopColor, |
| kString, |
| kTransform, |
| kViewBox, |
| kVisibility, |
| }; |
| |
| Type type() const { return fType; } |
| |
| template <typename T> |
| const T* as() const { |
| return fType == T::TYPE ? static_cast<const T*>(this) : nullptr; |
| } |
| |
| protected: |
| SkSVGValue(Type t) : fType(t) { } |
| |
| private: |
| Type fType; |
| |
| typedef SkNoncopyable INHERITED; |
| }; |
| |
| template <typename T, SkSVGValue::Type ValueType> |
| class SkSVGWrapperValue final : public SkSVGValue { |
| public: |
| static constexpr Type TYPE = ValueType; |
| |
| explicit SkSVGWrapperValue(const T& v) |
| : INHERITED(ValueType) |
| , fWrappedValue(v) { } |
| |
| operator const T&() const { return fWrappedValue; } |
| const T* operator->() const { return &fWrappedValue; } |
| |
| private: |
| // Stack-only |
| void* operator new(size_t) = delete; |
| void* operator new(size_t, void*) = delete; |
| |
| const T& fWrappedValue; |
| |
| typedef SkSVGValue INHERITED; |
| }; |
| |
| using SkSVGClipValue = SkSVGWrapperValue<SkSVGClip , SkSVGValue::Type::kClip >; |
| using SkSVGColorValue = SkSVGWrapperValue<SkSVGColorType , SkSVGValue::Type::kColor >; |
| using SkSVGFillRuleValue = SkSVGWrapperValue<SkSVGFillRule , SkSVGValue::Type::kFillRule >; |
| using SkSVGLengthValue = SkSVGWrapperValue<SkSVGLength , SkSVGValue::Type::kLength >; |
| using SkSVGPathValue = SkSVGWrapperValue<SkPath , SkSVGValue::Type::kPath >; |
| using SkSVGTransformValue = SkSVGWrapperValue<SkSVGTransformType, SkSVGValue::Type::kTransform >; |
| using SkSVGViewBoxValue = SkSVGWrapperValue<SkSVGViewBoxType , SkSVGValue::Type::kViewBox >; |
| using SkSVGPaintValue = SkSVGWrapperValue<SkSVGPaint , SkSVGValue::Type::kPaint >; |
| using SkSVGLineCapValue = SkSVGWrapperValue<SkSVGLineCap , SkSVGValue::Type::kLineCap >; |
| using SkSVGLineJoinValue = SkSVGWrapperValue<SkSVGLineJoin , SkSVGValue::Type::kLineJoin >; |
| using SkSVGNumberValue = SkSVGWrapperValue<SkSVGNumberType , SkSVGValue::Type::kNumber >; |
| using SkSVGPointsValue = SkSVGWrapperValue<SkSVGPointsType , SkSVGValue::Type::kPoints >; |
| using SkSVGStringValue = SkSVGWrapperValue<SkSVGStringType , SkSVGValue::Type::kString >; |
| using SkSVGSpreadMethodValue = SkSVGWrapperValue<SkSVGSpreadMethod , |
| SkSVGValue::Type::kSpreadMethod>; |
| using SkSVGStopColorValue = SkSVGWrapperValue<SkSVGStopColor , SkSVGValue::Type::kStopColor >; |
| using SkSVGVisibilityValue = SkSVGWrapperValue<SkSVGVisibility , SkSVGValue::Type::kVisibility>; |
| using SkSVGDashArrayValue = SkSVGWrapperValue<SkSVGDashArray , SkSVGValue::Type::kDashArray >; |
| |
| #endif // SkSVGValue_DEFINED |