1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "ui/gfx/geometry/box_f.h" 6 7 #include <algorithm> 8 9 #include "base/logging.h" 10 #include "base/strings/stringprintf.h" 11 12 namespace gfx { 13 14 std::string BoxF::ToString() const { 15 return base::StringPrintf("%s %fx%fx%f", 16 origin().ToString().c_str(), 17 width_, 18 height_, 19 depth_); 20 } 21 22 bool BoxF::IsEmpty() const { 23 return (width_ == 0 && height_ == 0) || 24 (width_ == 0 && depth_ == 0) || 25 (height_ == 0 && depth_ == 0); 26 } 27 28 void BoxF::ExpandTo(const Point3F& min, const Point3F& max) { 29 DCHECK_LE(min.x(), max.x()); 30 DCHECK_LE(min.y(), max.y()); 31 DCHECK_LE(min.z(), max.z()); 32 33 float min_x = std::min(x(), min.x()); 34 float min_y = std::min(y(), min.y()); 35 float min_z = std::min(z(), min.z()); 36 float max_x = std::max(right(), max.x()); 37 float max_y = std::max(bottom(), max.y()); 38 float max_z = std::max(front(), max.z()); 39 40 origin_.SetPoint(min_x, min_y, min_z); 41 width_ = max_x - min_x; 42 height_ = max_y - min_y; 43 depth_ = max_z - min_z; 44 } 45 46 void BoxF::Union(const BoxF& box) { 47 if (IsEmpty()) { 48 *this = box; 49 return; 50 } 51 if (box.IsEmpty()) 52 return; 53 ExpandTo(box); 54 } 55 56 void BoxF::ExpandTo(const Point3F& point) { 57 ExpandTo(point, point); 58 } 59 60 void BoxF::ExpandTo(const BoxF& box) { 61 ExpandTo(box.origin(), gfx::Point3F(box.right(), box.bottom(), box.front())); 62 } 63 64 BoxF UnionBoxes(const BoxF& a, const BoxF& b) { 65 BoxF result = a; 66 result.Union(b); 67 return result; 68 } 69 70 } // namespace gfx 71
