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// Copyright 2015 The Cobalt Authors. 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_RENDER_TREE_VIEWPORT_FILTER_H_
#define COBALT_RENDER_TREE_VIEWPORT_FILTER_H_
#include "base/optional.h"
#include "cobalt/math/matrix3_f.h"
#include "cobalt/math/rect_f.h"
#include "cobalt/render_tree/rounded_corners.h"
namespace cobalt {
namespace render_tree {
// An ViewportFilter can be used to specify the viewport of source content.
// Only the contents of the source render tree that lie within the specified
// rectangle will be rendered.
class ViewportFilter {
public:
explicit ViewportFilter(const math::RectF& viewport) : viewport_(viewport) {}
explicit ViewportFilter(const math::RectF& viewport,
const RoundedCorners& rounded_corners)
: viewport_(viewport), rounded_corners_(rounded_corners) {}
bool operator==(const ViewportFilter& other) const {
return viewport_ == other.viewport_ &&
rounded_corners_ == other.rounded_corners_;
}
const math::RectF& viewport() const { return viewport_; }
bool has_rounded_corners() const { return !!rounded_corners_; }
const RoundedCorners& rounded_corners() const { return *rounded_corners_; }
void set_rounded_corners(const RoundedCorners& rounded_corners) {
rounded_corners_ = rounded_corners;
}
private:
math::RectF viewport_;
base::Optional<RoundedCorners> rounded_corners_;
};
} // namespace render_tree
} // namespace cobalt
#endif // COBALT_RENDER_TREE_VIEWPORT_FILTER_H_