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- /*
- * Copyright 2018 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "modules/skottie/src/SkottieJson.h"
- #include "include/core/SkData.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkPoint.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkStream.h"
- #include "include/core/SkString.h"
- #include "modules/skottie/src/SkottieValue.h"
- #include <vector>
- namespace skottie {
- using namespace skjson;
- template <>
- bool Parse<SkScalar>(const Value& v, SkScalar* s) {
- // Some versions wrap values as single-element arrays.
- if (const skjson::ArrayValue* array = v) {
- if (array->size() > 0) {
- return Parse((*array)[0], s);
- }
- }
- if (const skjson::NumberValue* num = v) {
- *s = static_cast<SkScalar>(**num);
- return true;
- }
- return false;
- }
- template <>
- bool Parse<bool>(const Value& v, bool* b) {
- switch(v.getType()) {
- case Value::Type::kNumber:
- *b = SkToBool(*v.as<NumberValue>());
- return true;
- case Value::Type::kBool:
- *b = *v.as<BoolValue>();
- return true;
- default:
- break;
- }
- return false;
- }
- template <typename T>
- bool ParseIntegral(const Value& v, T* result) {
- if (const skjson::NumberValue* num = v) {
- const auto dbl = **num;
- *result = static_cast<T>(dbl);
- return static_cast<double>(*result) == dbl;
- }
- return false;
- }
- template <>
- bool Parse<int>(const Value& v, int* i) {
- return ParseIntegral(v, i);
- }
- template <>
- bool Parse<size_t>(const Value& v, size_t* sz) {
- return ParseIntegral(v, sz);
- }
- template <>
- bool Parse<SkString>(const Value& v, SkString* s) {
- if (const skjson::StringValue* sv = v) {
- s->set(sv->begin(), sv->size());
- return true;
- }
- return false;
- }
- template <>
- bool Parse<SkPoint>(const Value& v, SkPoint* pt) {
- if (!v.is<ObjectValue>())
- return false;
- const auto& ov = v.as<ObjectValue>();
- return Parse<SkScalar>(ov["x"], &pt->fX)
- && Parse<SkScalar>(ov["y"], &pt->fY);
- }
- template <>
- bool Parse<std::vector<float>>(const Value& v, std::vector<float>* vec) {
- if (!v.is<ArrayValue>())
- return false;
- const auto& av = v.as<ArrayValue>();
- vec->resize(av.size());
- for (size_t i = 0; i < av.size(); ++i) {
- if (!Parse(av[i], vec->data() + i)) {
- return false;
- }
- }
- return true;
- }
- } // namespace skottie
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