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 #ifndef UI_GFX_BOX_F_H_ 6 #define UI_GFX_BOX_F_H_ 7 8 #include "ui/gfx/point3_f.h" 9 #include "ui/gfx/vector3d_f.h" 10 11 namespace gfx { 12 13 // A 3d version of gfx::RectF, with the positive z-axis pointed towards 14 // the camera. 15 class UI_EXPORT BoxF { 16 public: 17 BoxF() 18 : width_(0.f), 19 height_(0.f), 20 depth_(0.f) {} 21 22 BoxF(float width, float height, float depth) 23 : width_(width < 0 ? 0 : width), 24 height_(height < 0 ? 0 : height), 25 depth_(depth < 0 ? 0 : depth) {} 26 27 BoxF(float x, float y, float z, float width, float height, float depth) 28 : origin_(x, y, z), 29 width_(width < 0 ? 0 : width), 30 height_(height < 0 ? 0 : height), 31 depth_(depth < 0 ? 0 : depth) {} 32 33 BoxF(const Point3F& origin, float width, float height, float depth) 34 : origin_(origin), 35 width_(width < 0 ? 0 : width), 36 height_(height < 0 ? 0 : height), 37 depth_(depth < 0 ? 0 : depth) {} 38 39 ~BoxF() {} 40 41 // Scales all three axes by the given scale. 42 void Scale(float scale) { 43 Scale(scale, scale, scale); 44 } 45 46 // Scales each axis by the corresponding given scale. 47 void Scale(float x_scale, float y_scale, float z_scale) { 48 origin_.Scale(x_scale, y_scale, z_scale); 49 set_size(width_ * x_scale, height_ * y_scale, depth_ * z_scale); 50 } 51 52 // Moves the box by the specified distance in each dimension. 53 void operator+=(const Vector3dF& offset) { 54 origin_ += offset; 55 } 56 57 // Returns true if the box has no interior points. 58 bool IsEmpty() const; 59 60 // Computes the union of this box with the given box. The union is the 61 // smallest box that contains both boxes. 62 void Union(const BoxF& box); 63 64 std::string ToString() const; 65 66 float x() const { return origin_.x(); } 67 void set_x(float x) { origin_.set_x(x); } 68 69 float y() const { return origin_.y(); } 70 void set_y(float y) { origin_.set_y(y); } 71 72 float z() const { return origin_.z(); } 73 void set_z(float z) { origin_.set_z(z); } 74 75 float width() const { return width_; } 76 void set_width(float width) { width_ = width < 0 ? 0 : width; } 77 78 float height() const { return height_; } 79 void set_height(float height) { height_ = height < 0 ? 0 : height; } 80 81 float depth() const { return depth_; } 82 void set_depth(float depth) { depth_ = depth < 0 ? 0 : depth; } 83 84 float right() const { return x() + width(); } 85 float bottom() const { return y() + height(); } 86 float front() const { return z() + depth(); } 87 88 void set_size(float width, float height, float depth) { 89 width_ = width < 0 ? 0 : width; 90 height_ = height < 0 ? 0 : height; 91 depth_ = depth < 0 ? 0 : depth; 92 } 93 94 const Point3F& origin() const { return origin_; } 95 void set_origin(const Point3F& origin) { origin_ = origin; } 96 97 private: 98 Point3F origin_; 99 float width_; 100 float height_; 101 float depth_; 102 }; 103 104 UI_EXPORT BoxF UnionBoxes(const BoxF& a, const BoxF& b); 105 106 inline BoxF ScaleBox(const BoxF& b, 107 float x_scale, 108 float y_scale, 109 float z_scale) { 110 return BoxF(b.x() * x_scale, 111 b.y() * y_scale, 112 b.z() * z_scale, 113 b.width() * x_scale, 114 b.height() * y_scale, 115 b.depth() * z_scale); 116 } 117 118 inline BoxF ScaleBox(const BoxF& b, float scale) { 119 return ScaleBox(b, scale, scale, scale); 120 } 121 122 inline bool operator==(const BoxF& a, const BoxF& b) { 123 return a.origin() == b.origin() && a.width() == b.width() && 124 a.height() == b.height() && a.depth() == b.depth(); 125 } 126 127 inline bool operator!=(const BoxF& a, const BoxF& b) { 128 return !(a == b); 129 } 130 131 inline BoxF operator+(const BoxF& b, const Vector3dF& v) { 132 return BoxF(b.x() + v.x(), 133 b.y() + v.y(), 134 b.z() + v.z(), 135 b.width(), 136 b.height(), 137 b.depth()); 138 } 139 140 } // namespace gfx 141 142 #endif // UI_GFX_BOX_F_H_ 143
