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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_CSSOM_ROTATE_FUNCTION_H_
#define COBALT_CSSOM_ROTATE_FUNCTION_H_
#include <string>
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "base/stringprintf.h"
#include "cobalt/base/polymorphic_equatable.h"
#include "cobalt/cssom/transform_function.h"
namespace cobalt {
namespace cssom {
class TransformFunctionVisitor;
// The rotate function specifies a 2D rotation operation by the the specified
// angle.
// https://www.w3.org/TR/css-transforms-1/#funcdef-rotate
class RotateFunction : public TransformFunction {
public:
explicit RotateFunction(float clockwise_angle_in_radians)
: clockwise_angle_in_radians_(clockwise_angle_in_radians) {}
void Accept(TransformFunctionVisitor* visitor) const OVERRIDE;
float clockwise_angle_in_radians() const {
return clockwise_angle_in_radians_;
}
std::string ToString() const OVERRIDE {
return base::StringPrintf("rotate(%.7grad)", clockwise_angle_in_radians_);
}
bool operator==(const RotateFunction& other) const {
return clockwise_angle_in_radians_ == other.clockwise_angle_in_radians_;
}
DEFINE_POLYMORPHIC_EQUATABLE_TYPE(RotateFunction);
private:
const float clockwise_angle_in_radians_;
};
} // namespace cssom
} // namespace cobalt
#endif // COBALT_CSSOM_ROTATE_FUNCTION_H_