| /* |
| * Copyright (c) 2014, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| #ifndef SKY_ENGINE_PLATFORM_GEOMETRY_FLOATBOX_H_ |
| #define SKY_ENGINE_PLATFORM_GEOMETRY_FLOATBOX_H_ |
| |
| #include <cmath> |
| #include "sky/engine/platform/geometry/FloatPoint3D.h" |
| |
| namespace blink { |
| |
| class FloatBox { |
| public: |
| FloatBox() |
| : m_x(0) |
| , m_y(0) |
| , m_z(0) |
| , m_width(0) |
| , m_height(0) |
| , m_depth(0) |
| { |
| } |
| |
| FloatBox(float x, float y, float z, float width, float height, float depth) |
| : m_x(x) |
| , m_y(y) |
| , m_z(z) |
| , m_width(width) |
| , m_height(height) |
| , m_depth(depth) |
| { |
| } |
| |
| FloatBox(const FloatBox& box) |
| : m_x(box.x()) |
| , m_y(box.y()) |
| , m_z(box.z()) |
| , m_width(box.width()) |
| , m_height(box.height()) |
| , m_depth(box.depth()) |
| { |
| } |
| |
| void setOrigin(const FloatPoint3D& origin) |
| { |
| m_x = origin.x(); |
| m_y = origin.y(); |
| m_z = origin.z(); |
| } |
| |
| void setSize(const FloatPoint3D& origin) |
| { |
| ASSERT(origin.x() >= 0); |
| ASSERT(origin.y() >= 0); |
| ASSERT(origin.z() >= 0); |
| |
| m_width = origin.x(); |
| m_height = origin.y(); |
| m_depth = origin.z(); |
| } |
| |
| void move(const FloatPoint3D& location) |
| { |
| m_x += location.x(); |
| m_y += location.y(); |
| m_z += location.z(); |
| } |
| |
| void flatten() |
| { |
| m_z = 0; |
| m_depth = 0; |
| } |
| |
| void expandTo(const FloatPoint3D& low, const FloatPoint3D& high) |
| { |
| ASSERT(low.x() <= high.x()); |
| ASSERT(low.y() <= high.y()); |
| ASSERT(low.z() <= high.z()); |
| |
| float minX = std::min(m_x, low.x()); |
| float minY = std::min(m_y, low.y()); |
| float minZ = std::min(m_z, low.z()); |
| |
| float maxX = std::max(right(), high.x()); |
| float maxY = std::max(bottom(), high.y()); |
| float maxZ = std::max(front(), high.z()); |
| |
| m_x = minX; |
| m_y = minY; |
| m_z = minZ; |
| |
| m_width = maxX - minX; |
| m_height = maxY - minY; |
| m_depth = maxZ - minZ; |
| } |
| |
| void expandTo(const FloatPoint3D& point) |
| { |
| expandTo(point, point); |
| } |
| |
| void expandTo(const FloatBox& box) |
| { |
| expandTo(FloatPoint3D(box.x(), box.y(), box.z()), FloatPoint3D(box.right(), box.bottom(), box.front())); |
| } |
| |
| void unionBounds(const FloatBox& box) |
| { |
| if (box.isEmpty()) |
| return; |
| |
| if (isEmpty()) { |
| *this = box; |
| return; |
| } |
| |
| expandTo(box); |
| } |
| |
| bool isEmpty() const { return (m_width <= 0 && m_height <= 0) || (m_width <= 0 && m_depth <= 0) || (m_height <= 0 && m_depth <= 0); } |
| |
| float right() const { return m_x + m_width; } |
| float bottom() const { return m_y + m_height; } |
| float front() const { return m_z + m_depth; } |
| float x() const { return m_x; } |
| float y() const { return m_y; } |
| float z() const { return m_z; } |
| float width() const { return m_width; } |
| float height() const { return m_height; } |
| float depth() const { return m_depth; } |
| private: |
| float m_x; |
| float m_y; |
| float m_z; |
| float m_width; |
| float m_height; |
| float m_depth; |
| }; |
| |
| inline bool operator==(const FloatBox& a, const FloatBox& b) |
| { |
| return a.x() == b.x() && a.y() == b.y() && a.z() == b.z() && a.width() == b.width() |
| && a.height() == b.height() && a.depth() == b.depth(); |
| } |
| |
| inline bool operator!=(const FloatBox& a, const FloatBox& b) |
| { |
| return !(a == b); |
| } |
| |
| } // namespace WebKit |
| |
| #endif // SKY_ENGINE_PLATFORM_GEOMETRY_FLOATBOX_H_ |