| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SRC_UI_LIB_ESCHER_SCENE_VIEWING_VOLUME_H_ |
| #define SRC_UI_LIB_ESCHER_SCENE_VIEWING_VOLUME_H_ |
| |
| #include <math.h> |
| |
| #include "src/ui/lib/escher/geometry/bounding_box.h" |
| #include "src/ui/lib/escher/util/debug_print.h" |
| |
| namespace escher { |
| |
| class ViewingVolume { |
| public: |
| ViewingVolume(); |
| explicit ViewingVolume(const BoundingBox& box); |
| ViewingVolume(float width, float height, float top, float bottom); |
| ~ViewingVolume(); |
| |
| ViewingVolume CopyWith(float width, float height); |
| |
| float width() const { return width_; } |
| float height() const { return height_; } |
| float top() const { return top_; } |
| float bottom() const { return bottom_; } |
| float depth() const { return top_ - bottom_; } |
| |
| BoundingBox bounding_box() const { |
| return BoundingBox(glm::vec3(0.f, 0.f, top_), glm::vec3(width_, height_, bottom_)); |
| } |
| |
| private: |
| float width_ = 0.0f; |
| float height_ = 0.0f; |
| float top_ = 0.0f; |
| float bottom_ = 0.0f; |
| }; |
| |
| // Debugging. |
| ESCHER_DEBUG_PRINTABLE(ViewingVolume); |
| |
| } // namespace escher |
| |
| #endif // SRC_UI_LIB_ESCHER_SCENE_VIEWING_VOLUME_H_ |