98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
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/*
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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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#ifndef SkSVGValue_DEFINED
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#define SkSVGValue_DEFINED
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#include "include/core/SkColor.h"
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#include "include/core/SkMatrix.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkTypes.h"
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#include "include/private/SkNoncopyable.h"
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#include "modules/svg/include/SkSVGTypes.h"
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class SkSVGValue : public SkNoncopyable {
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public:
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enum class Type {
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kClip,
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kColor,
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kDashArray,
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kFillRule,
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kLength,
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kLineCap,
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kLineJoin,
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kNumber,
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kPaint,
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kPath,
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kPoints,
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kSpreadMethod,
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kStopColor,
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kString,
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kTransform,
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kViewBox,
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kVisibility,
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};
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Type type() const { return fType; }
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template <typename T>
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const T* as() const {
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return fType == T::TYPE ? static_cast<const T*>(this) : nullptr;
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}
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protected:
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SkSVGValue(Type t) : fType(t) { }
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private:
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Type fType;
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using INHERITED = SkNoncopyable;
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};
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template <typename T, SkSVGValue::Type ValueType>
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class SkSVGWrapperValue final : public SkSVGValue {
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public:
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static constexpr Type TYPE = ValueType;
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explicit SkSVGWrapperValue(const T& v)
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: INHERITED(ValueType)
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, fWrappedValue(v) { }
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operator const T&() const { return fWrappedValue; }
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const T* operator->() const { return &fWrappedValue; }
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private:
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// Stack-only
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void* operator new(size_t) = delete;
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void* operator new(size_t, void*) = delete;
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const T& fWrappedValue;
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using INHERITED = SkSVGValue;
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};
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using SkSVGClipValue = SkSVGWrapperValue<SkSVGClip , SkSVGValue::Type::kClip >;
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using SkSVGColorValue = SkSVGWrapperValue<SkSVGColorType , SkSVGValue::Type::kColor >;
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using SkSVGFillRuleValue = SkSVGWrapperValue<SkSVGFillRule , SkSVGValue::Type::kFillRule >;
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using SkSVGLengthValue = SkSVGWrapperValue<SkSVGLength , SkSVGValue::Type::kLength >;
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using SkSVGPathValue = SkSVGWrapperValue<SkPath , SkSVGValue::Type::kPath >;
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using SkSVGTransformValue = SkSVGWrapperValue<SkSVGTransformType, SkSVGValue::Type::kTransform >;
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using SkSVGViewBoxValue = SkSVGWrapperValue<SkSVGViewBoxType , SkSVGValue::Type::kViewBox >;
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using SkSVGPaintValue = SkSVGWrapperValue<SkSVGPaint , SkSVGValue::Type::kPaint >;
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using SkSVGLineCapValue = SkSVGWrapperValue<SkSVGLineCap , SkSVGValue::Type::kLineCap >;
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using SkSVGLineJoinValue = SkSVGWrapperValue<SkSVGLineJoin , SkSVGValue::Type::kLineJoin >;
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using SkSVGNumberValue = SkSVGWrapperValue<SkSVGNumberType , SkSVGValue::Type::kNumber >;
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using SkSVGPointsValue = SkSVGWrapperValue<SkSVGPointsType , SkSVGValue::Type::kPoints >;
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using SkSVGStringValue = SkSVGWrapperValue<SkSVGStringType , SkSVGValue::Type::kString >;
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using SkSVGSpreadMethodValue = SkSVGWrapperValue<SkSVGSpreadMethod ,
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SkSVGValue::Type::kSpreadMethod>;
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using SkSVGStopColorValue = SkSVGWrapperValue<SkSVGStopColor , SkSVGValue::Type::kStopColor >;
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using SkSVGVisibilityValue = SkSVGWrapperValue<SkSVGVisibility , SkSVGValue::Type::kVisibility>;
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using SkSVGDashArrayValue = SkSVGWrapperValue<SkSVGDashArray , SkSVGValue::Type::kDashArray >;
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#endif // SkSVGValue_DEFINED
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