dali/public-api/common/constants.h

   1 #ifndef DALI_CONSTANTS_H
   2 #define DALI_CONSTANTS_H
   3
   4 /*
   5  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  */
  20
  21 // EXTERNAL INCLUDES
  22 #include <math.h> // M_PI
  23
  24 // INTERNAL INCLUDES
  25 #include <dali/public-api/math/compile-time-math.h>
  26 #include <dali/public-api/math/vector3.h>
  27 #include <dali/public-api/math/vector4.h>
  28
  29 namespace Dali
  30 {
  31 /**
  32  * @addtogroup dali_core_common
  33  * @{
  34  */
  35
  36 /**
  37  * @brief ParentOrigin constants.
  38  *
  39  * Note that for 2D layouting, the typical Z position is 0.5f (not 0.0f).
  40  * @SINCE_1_0.0
  41  */
  42 namespace ParentOrigin
  43 {
  44 static constexpr float   TOP    = 0.0f;
  45 static constexpr float   BOTTOM = 1.0f;
  46 static constexpr float   LEFT   = 0.0f;
  47 static constexpr float   RIGHT  = 1.0f;
  48 static constexpr float   MIDDLE = 0.5f;
  49 static constexpr Vector3 TOP_LEFT(0.0f, 0.0f, 0.5f);
  50 static constexpr Vector3 TOP_CENTER(0.5f, 0.0f, 0.5f);
  51 static constexpr Vector3 TOP_RIGHT(1.0f, 0.0f, 0.5f);
  52 static constexpr Vector3 CENTER_LEFT(0.0f, 0.5f, 0.5f);
  53 static constexpr Vector3 CENTER(0.5f, 0.5f, 0.5f);
  54 static constexpr Vector3 CENTER_RIGHT(1.0f, 0.5f, 0.5f);
  55 static constexpr Vector3 BOTTOM_LEFT(0.0f, 1.0f, 0.5f);
  56 static constexpr Vector3 BOTTOM_CENTER(0.5f, 1.0f, 0.5f);
  57 static constexpr Vector3 BOTTOM_RIGHT(1.0f, 1.0f, 0.5f);
  58 static constexpr Vector3 DEFAULT(TOP_LEFT);
  59 } // namespace ParentOrigin
  60
  61 /**
  62  * @brief AnchorPoint constants.
  63  *
  64  * Note that for 2D layouting, the typical Z position is 0.5f (not 0.0f).
  65  * @SINCE_1_0.0
  66  */
  67 namespace AnchorPoint
  68 {
  69 static constexpr float   TOP    = 0.0f;
  70 static constexpr float   BOTTOM = 1.0f;
  71 static constexpr float   LEFT   = 0.0f;
  72 static constexpr float   RIGHT  = 1.0f;
  73 static constexpr float   MIDDLE = 0.5f;
  74 static constexpr Vector3 TOP_LEFT(0.0f, 0.0f, 0.5f);
  75 static constexpr Vector3 TOP_CENTER(0.5f, 0.0f, 0.5f);
  76 static constexpr Vector3 TOP_RIGHT(1.0f, 0.0f, 0.5f);
  77 static constexpr Vector3 CENTER_LEFT(0.0f, 0.5f, 0.5f);
  78 static constexpr Vector3 CENTER(0.5f, 0.5f, 0.5f);
  79 static constexpr Vector3 CENTER_RIGHT(1.0f, 0.5f, 0.5f);
  80 static constexpr Vector3 BOTTOM_LEFT(0.0f, 1.0f, 0.5f);
  81 static constexpr Vector3 BOTTOM_CENTER(0.5f, 1.0f, 0.5f);
  82 static constexpr Vector3 BOTTOM_RIGHT(1.0f, 1.0f, 0.5f);
  83 static constexpr Vector3 DEFAULT(CENTER);
  84 } // namespace AnchorPoint
  85
  86 /**
  87  * @brief Color Constants.
  88  *
  89  * Color is represented by the Vector4 class (see vector4.h).
  90  * @SINCE_1_0.0
  91  */
  92 namespace Color
  93 {
  94 // Subset of X11 Colors (CSS colors)
  95 // https://www.w3.org/TR/css-color-3
  96 static constexpr Vector4 ALICE_BLUE(240.0f / 255.0f, 248.0f / 255.0f, 1.0f, 1.0f);                         //#F0F8FF
  97 static constexpr Vector4 ANTIQUE_WHITE(250.0f / 255.0f, 235.0f / 255.0f, 215.0f / 255.0f, 1.0f);           //#FAEBD7
  98 static constexpr Vector4 AQUA(0.0f, 1.0f, 1.0f, 1.0f);                                                     //#00FFFF
  99 static constexpr Vector4 AQUA_MARINE(127.0f / 255.0f, 1.0f, 212.0f / 255.0f, 1.0f);                        //#7FFFD4
 100 static constexpr Vector4 AZURE(240.0f / 255.0f, 1.0f, 1.0f, 1.0f);                                         //#F0FFFF
 101 static constexpr Vector4 BEIGE(245.0f / 255.0f, 245.0f / 255.0f, 220.0f / 255.0f, 1.0f);                   //#F5F5DC
 102 static constexpr Vector4 BISQUE(1.0f, 228.0f / 255.0f, 196.0f / 255.0f, 1.0f);                             //#FFE4C4
 103 static constexpr Vector4 BLACK(0.0f, 0.0f, 0.0f, 1.0f);                                                    //#000000
 104 static constexpr Vector4 BLANCHE_DALMOND(1.0f, 235.0f / 255.0f, 205.0f / 255.0f, 1.0f);                    //#FFEBCD
 105 static constexpr Vector4 BLUE(0.0f, 0.0f, 1.0f, 1.0f);                                                     //#0000FF
 106 static constexpr Vector4 BLUE_VIOLET(138.0f / 255.0f, 43.0f / 255.0f, 226.0f / 255.0f, 1.0f);              //#8A2BE2
 107 static constexpr Vector4 BROWN(165.0f / 255.0f, 42.0f / 255.0f, 42.0f / 255.0f, 1.0f);                     //#A52A2A
 108 static constexpr Vector4 BURLY_WOOD(222.0f / 255.0f, 184.0f / 255.0f, 135.0f / 255.0f, 1.0f);              //#DEB887
 109 static constexpr Vector4 CADET_BLUE(95.0f / 255.0f, 158.0f / 255.0f, 160.0f / 255.0f, 1.0f);               //#5F9EA0
 110 static constexpr Vector4 CHARTREUSE(127.0f / 255.0f, 1.0f, 0.0f, 1.0f);                                    //#7FFF00
 111 static constexpr Vector4 CHOCOLATE(210.0f / 255.0f, 105.0f / 255.0f, 30.0f / 255.0f, 1.0f);                //#D2691E
 112 static constexpr Vector4 CORAL(1.0f, 127.0f / 255.0f, 80.0f / 255.0f, 1.0f);                               //#FF7F50
 113 static constexpr Vector4 CORNFLOWER_BLUE(100.0f / 255.0f, 149.0f / 255.0f, 237.0f / 255.0f, 1.0f);         //#6495ED
 114 static constexpr Vector4 CORNSILK(1.0f, 248.0f / 255.0f, 220.0f / 255.0f, 1.0f);                           //#FFF8DC
 115 static constexpr Vector4 CRIMSON(220.0f / 255.0f, 20.0f / 255.0f, 60.0f / 255.0f, 1.0f);                   //#DC143C
 116 static constexpr Vector4 CYAN(0.0f, 1.0f, 1.0f, 1.0f);                                                     //#00FFFF
 117 static constexpr Vector4 DARK_BLUE(0.0f, 0.0f, 139.0f / 255.0f, 1.0f);                                     //#00008B
 118 static constexpr Vector4 DARK_CYAN(0.0f, 139.0f / 255.0f, 139.0f / 255.0f, 1.0f);                          //#008B8B
 119 static constexpr Vector4 DARK_GOLDENROD(184.0f / 255.0f, 134.0f / 255.0f, 11.0f / 255.0f, 1.0f);           //#B8860B
 120 static constexpr Vector4 DARK_GRAY(169.0f / 255.0f, 169.0f / 255.0f, 169.0f / 255.0f, 1.0f);               //#A9A9A9
 121 static constexpr Vector4 DARK_GREEN(0.0f, 100.0f / 255.0f, 0.0f, 1.0f);                                    //#006400
 122 static constexpr Vector4 DARK_GREY(169.0f / 255.0f, 169.0f / 255.0f, 169.0f / 255.0f, 1.0f);               //#A9A9A9
 123 static constexpr Vector4 DARK_KHAKI(189.0f / 255.0f, 183.0f / 255.0f, 107.0f / 255.0f, 1.0f);              //#BDB76B
 124 static constexpr Vector4 DARK_MAGENTA(139.0f / 255.0f, 0.0f, 139.0f / 255.0f, 1.0f);                       //#8B008B
 125 static constexpr Vector4 DARK_OLIVE_GREEN(85.0f / 255.0f, 107.0f / 255.0f, 47.0f / 255.0f, 1.0f);          //#556B2F
 126 static constexpr Vector4 DARK_ORANGE(1.0f, 140.0f / 255.0f, 0.0f, 1.0f);                                   //#FF8C00
 127 static constexpr Vector4 DARK_ORCHID(153.0f / 255.0f, 50.0f / 255.0f, 204.0f / 255.0f, 1.0f);              //#9932CC
 128 static constexpr Vector4 DARK_RED(139.0f / 255.0f, 0.0f, 0.0f, 1.0f);                                      //#8B0000
 129 static constexpr Vector4 DARK_SALMON(233.0f / 255.0f, 150.0f / 255.0f, 122.0f / 255.0f, 1.0f);             //#E9967A
 130 static constexpr Vector4 DARK_SEA_GREEN(143.0f / 255.0f, 188.0f / 255.0f, 143.0f / 255.0f, 1.0f);          //#8FBC8F
 131 static constexpr Vector4 DARK_SLATE_BLUE(72.0f / 255.0f, 61.0f / 255.0f, 139.0f / 255.0f, 1.0f);           //#483D8B
 132 static constexpr Vector4 DARK_SLATE_GRAY(47.0f / 255.0f, 79.0f / 255.0f, 79.0f / 255.0f, 1.0f);            //#2F4F4F
 133 static constexpr Vector4 DARK_SLATE_GREY(47.0f / 255.0f, 79.0f / 255.0f, 79.0f / 255.0f, 1.0f);            //#2F4F4F
 134 static constexpr Vector4 DARK_TURQUOISE(0.0f, 206.0f / 255.0f, 209.0f / 255.0f, 1.0f);                     //#00CED1
 135 static constexpr Vector4 DARK_VIOLET(148.0f / 255.0f, 0.0f, 211.0f / 255.0f, 1.0f);                        //#9400D3
 136 static constexpr Vector4 DEEP_PINK(1.0f, 20.0f / 255.0f, 147.0f / 255.0f, 1.0f);                           //#FF1493
 137 static constexpr Vector4 DEEP_SKY_BLUE(0.0f, 191.0f / 255.0f, 1.0f, 1.0f);                                 //#00BFFF
 138 static constexpr Vector4 DIM_GRAY(105.0f / 255.0f, 105.0f / 255.0f, 105.0f / 255.0f, 1.0f);                //#696969
 139 static constexpr Vector4 DIM_GREY(105.0f / 255.0f, 105.0f / 255.0f, 105.0f / 255.0f, 1.0f);                //#696969
 140 static constexpr Vector4 DODGER_BLUE(30.0f / 255.0f, 144.0f / 255.0f, 1.0f, 1.0f);                         //#1E90FF
 141 static constexpr Vector4 FIRE_BRICK(178.0f / 255.0f, 34.0f / 255.0f, 34.0f / 255.0f, 1.0f);                //#B22222
 142 static constexpr Vector4 FLORAL_WHITE(1.0f, 250.0f / 255.0f, 240.0f / 255.0f, 1.0f);                       //#FFFAF0
 143 static constexpr Vector4 FOREST_GREEN(34.0f / 255.0f, 139.0f / 255.0f, 34.0f / 255.0f, 1.0f);              //#228B22
 144 static constexpr Vector4 FUCHSIA(1.0f, 0.0f, 1.0f, 1.0f);                                                  //#FF00FF
 145 static constexpr Vector4 GAINSBORO(220.0f / 255.0f, 220.0f / 255.0f, 220.0f / 255.0f, 1.0f);               //#DCDCDC
 146 static constexpr Vector4 GHOST_WHITE(248.0f / 255.0f, 248.0f / 255.0f, 1.0f, 1.0f);                        //#F8F8FF
 147 static constexpr Vector4 GOLD(1.0f, 215.0f / 255.0f, 0.0f, 1.0f);                                          //#FFD700
 148 static constexpr Vector4 GOLDEN_ROD(218.0f / 255.0f, 165.0f / 255.0f, 32.0f / 255.0f, 1.0f);               //#DAA520
 149 static constexpr Vector4 GRAY(190.0f / 255.0f, 190.0f / 255.0f, 190.0f / 255.0f, 1.0f);                    //#BEBEBE
 150 static constexpr Vector4 GREEN(0.0f, 1.0f, 0.0f, 1.0f);                                                    //#00FF00
 151 static constexpr Vector4 GREEN_YELLOW(173.0f / 255.0f, 1.0f, 47.0f / 255.0f, 1.0f);                        //#ADFF2F
 152 static constexpr Vector4 GREY(128.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f, 1.0f);                    //#808080
 153 static constexpr Vector4 HONEYDEW(240.0f / 255.0f, 1.0f, 240.0f / 255.0f, 1.0f);                           //#F0FFF0
 154 static constexpr Vector4 HOT_PINK(1.0f, 105.0f / 255.0f, 180.0f / 255.0f, 1.0f);                           //#FF69B4
 155 static constexpr Vector4 INDIANRED(205.0f / 255.0f, 92.0f / 255.0f, 92.0f / 255.0f, 1.0f);                 //#CD5C5C
 156 static constexpr Vector4 INDIGO(75.0f / 255.0f, 0.0f, 130.0f / 255.0f, 1.0f);                              //#4B0082
 157 static constexpr Vector4 IVORY(1.0f, 1.0f, 240.0f / 255.0f, 1.0f);                                         //#FFFFF0
 158 static constexpr Vector4 KHAKI(240.0f / 255.0f, 230.0f / 255.0f, 140.0f / 255.0f, 1.0f);                   //#F0E68C
 159 static constexpr Vector4 LAVENDER(230.0f / 255.0f, 230.0f / 255.0f, 250.0f / 255.0f, 1.0f);                //#E6E6FA
 160 static constexpr Vector4 LAVENDER_BLUSH(1.0f, 240.0f / 255.0f, 245.0f / 255.0f, 1.0f);                     //#FFF0F5
 161 static constexpr Vector4 LAWN_GREEN(124.0f / 255.0f, 252.0f / 255.0f, 0.0f, 1.0f);                         //#7CFC00
 162 static constexpr Vector4 LEMON_CHIFFON(1.0f, 250.0f / 255.0f, 205.0f / 255.0f, 1.0f);                      //#FFFACD
 163 static constexpr Vector4 LIGHT_BLUE(173.0f / 255.0f, 216.0f / 255.0f, 230.0f / 255.0f, 1.0f);              //#ADD8E6
 164 static constexpr Vector4 LIGHT_CORAL(240.0f / 255.0f, 128.0f / 255.0f, 128.0f / 255.0f, 1.0f);             //#F08080
 165 static constexpr Vector4 LIGHT_CYAN(224.0f / 255.0f, 1.0f, 1.0f, 1.0f);                                    //#E0FFFF
 166 static constexpr Vector4 LIGHT_GOLDEN_ROD_YELLOW(250.0f / 255.0f, 250.0f / 255.0f, 210.0f / 255.0f, 1.0f); //#FAFAD2
 167 static constexpr Vector4 LIGHT_GRAY(211.0f / 255.0f, 211.0f / 255.0f, 211.0f / 255.0f, 1.0f);              //#D3D3D3
 168 static constexpr Vector4 LIGHT_GREEN(144.0f / 255.0f, 238.0f / 255.0f, 144.0f / 255.0f, 1.0f);             //#90EE90
 169 static constexpr Vector4 LIGHT_GREY(211.0f / 255.0f, 211.0f / 255.0f, 211.0f / 255.0f, 1.0f);              //#D3D3D3
 170 static constexpr Vector4 LIGHT_PINK(1.0f, 182.0f / 255.0f, 193.0f / 255.0f, 1.0f);                         //#FFB6C1
 171 static constexpr Vector4 LIGHT_SALMON(1.0f, 160.0f / 255.0f, 122.0f / 255.0f, 1.0f);                       //#FFA07A
 172 static constexpr Vector4 LIGHT_SEA_GREEN(32.0f / 255.0f, 178.0f / 255.0f, 170.0f / 255.0f, 1.0f);          //#20B2AA
 173 static constexpr Vector4 LIGHT_SKY_BLUE(135.0f / 255.0f, 206.0f / 255.0f, 250.0f / 255.0f, 1.0f);          //#87CEFA
 174 static constexpr Vector4 LIGHT_SLATE_GRAY(119.0f / 255.0f, 136.0f / 255.0f, 153.0f / 255.0f, 1.0f);        //#778899
 175 static constexpr Vector4 LIGHT_SLATE_GREY(119.0f / 255.0f, 136.0f / 255.0f, 153.0f / 255.0f, 1.0f);        //#778899
 176 static constexpr Vector4 LIGHT_STEEL_BLUE(176.0f / 255.0f, 196.0f / 255.0f, 222.0f / 255.0f, 1.0f);        //#B0C4DE
 177 static constexpr Vector4 LIGHT_YELLOW(1.0f, 1.0f, 224.0f / 255.0f, 1.0f);                                  //#FFFFE0
 178 static constexpr Vector4 LIME(0.0f, 1.0f, 0.0f, 1.0f);                                                     //#00FF00
 179 static constexpr Vector4 LIME_GREEN(50.0f / 255.0f, 205.0f / 255.0f, 50.0f / 255.0f, 1.0f);                //#32CD32
 180 static constexpr Vector4 LINEN(250.0f / 255.0f, 240.0f / 255.0f, 230.0f / 255.0f, 1.0f);                   //#FAF0E6
 181 static constexpr Vector4 MAGENTA(1.0f, 0.0f, 1.0f, 1.0f);                                                  //#FF00FF
 182 static constexpr Vector4 MAROON(176.0f / 255.0f, 48.0f / 255.0f, 96.0f / 255.0f, 1.0f);                    //#B03060
 183 static constexpr Vector4 MEDIUM_AQUA_MARINE(102.0f / 255.0f, 205.0f / 255.0f, 170.0f / 255.0f, 1.0f);      //#66CDAA
 184 static constexpr Vector4 MEDIUM_BLUE(0.0f, 0.0f, 205.0f / 255.0f, 1.0f);                                   //#0000CD
 185 static constexpr Vector4 MEDIUM_ORCHID(186.0f / 255.0f, 85.0f / 255.0f, 211.0f / 255.0f, 1.0f);            //#BA55D3
 186 static constexpr Vector4 MEDIUM_PURPLE(147.0f / 255.0f, 112.0f / 255.0f, 219.0f / 255.0f, 1.0f);           //#9370DB
 187 static constexpr Vector4 MEDIUM_SEA_GREEN(60.0f / 255.0f, 179.0f / 255.0f, 113.0f / 255.0f, 1.0f);         //#3CB371
 188 static constexpr Vector4 MEDIUM_SLATE_BLUE(123.0f / 255.0f, 104.0f / 255.0f, 238.0f / 255.0f, 1.0f);       //#7B68EE
 189 static constexpr Vector4 MEDIUM_SPRING_GREEN(0.0f, 250.0f / 255.0f, 154.0f / 255.0f, 1.0f);                //#00FA9A
 190 static constexpr Vector4 MEDIUM_TURQUOISE(72.0f / 255.0f, 209.0f / 255.0f, 204.0f / 255.0f, 1.0f);         //#48D1CC
 191 static constexpr Vector4 MEDIUM_VIOLETRED(199.0f / 255.0f, 21.0f / 255.0f, 133.0f / 255.0f, 1.0f);         //#C71585
 192 static constexpr Vector4 MIDNIGHT_BLUE(25.0f / 255.0f, 25.0f / 255.0f, 112.0f / 255.0f, 1.0f);             //#191970
 193 static constexpr Vector4 MINT_CREAM(245.0f / 255.0f, 1.0f, 250.0f / 255.0f, 1.0f);                         //#F5FFFA
 194 static constexpr Vector4 MISTY_ROSE(1.0f, 228.0f / 255.0f, 225.0f / 255.0f, 1.0f);                         //#FFE4E1
 195 static constexpr Vector4 MOCCASIN(1.0f, 228.0f / 255.0f, 181.0f / 255.0f, 1.0f);                           //#FFE4B5
 196 static constexpr Vector4 NAVAJO_WHITE(1.0f, 222.0f / 255.0f, 173.0f / 255.0f, 1.0f);                       //#FFDEAD
 197 static constexpr Vector4 NAVY(0.0f, 0.0f, 128.0f / 255.0f, 1.0f);                                          //#000080
 198 static constexpr Vector4 OLD_LACE(253.0f / 255.0f, 245.0f / 255.0f, 230.0f / 255.0f, 1.0f);                //#FDF5E6
 199 static constexpr Vector4 OLIVE(128.0f / 255.0f, 128.0f / 255.0f, 0.0f, 1.0f);                              //#808000
 200 static constexpr Vector4 OLIVE_DRAB(107.0f / 255.0f, 142.0f / 255.0f, 35.0f / 255.0f, 1.0f);               //#6B8E23
 201 static constexpr Vector4 ORANGE(1.0f, 165.0f / 255.0f, 0.0f, 1.0f);                                        //#FFA500
 202 static constexpr Vector4 ORANGE_RED(1.0f, 69.0f / 255.0f, 0.0f, 1.0f);                                     //#FF4500
 203 static constexpr Vector4 ORCHID(218.0f / 255.0f, 112.0f / 255.0f, 214.0f / 255.0f, 1.0f);                  //#DA70D6
 204 static constexpr Vector4 PALE_GOLDEN_ROD(238.0f / 255.0f, 232.0f / 255.0f, 170.0f / 255.0f, 1.0f);         //#EEE8AA
 205 static constexpr Vector4 PALE_GREEN(152.0f / 255.0f, 251.0f / 255.0f, 152.0f / 255.0f, 1.0f);              //#98FB98
 206 static constexpr Vector4 PALE_TURQUOISE(175.0f / 255.0f, 238.0f / 255.0f, 238.0f / 255.0f, 1.0f);          //#AFEEEE
 207 static constexpr Vector4 PALE_VIOLET_RED(219.0f / 255.0f, 112.0f / 255.0f, 147.0f / 255.0f, 1.0f);         //#DB7093
 208 static constexpr Vector4 PAPAYA_WHIP(1.0f, 239.0f / 255.0f, 213.0f / 255.0f, 1.0f);                        //#FFEFD5
 209 static constexpr Vector4 PEACH_PUFF(1.0f, 218.0f / 255.0f, 185.0f / 255.0f, 1.0f);                         //#FFDAB9
 210 static constexpr Vector4 PERU(205.0f / 255.0f, 133.0f / 255.0f, 63.0f / 255.0f, 1.0f);                     //#CD853F
 211 static constexpr Vector4 PINK(1.0f, 192.0f / 255.0f, 203.0f / 255.0f, 1.0f);                               //#FFC0CB
 212 static constexpr Vector4 PLUM(221.0f / 255.0f, 160.0f / 255.0f, 221.0f / 255.0f, 1.0f);                    //#DDA0DD
 213 static constexpr Vector4 POWDER_BLUE(176.0f / 255.0f, 224.0f / 255.0f, 230.0f / 255.0f, 1.0f);             //#B0E0E6
 214 static constexpr Vector4 PURPLE(160.0f / 255.0f, 32.0f / 255.0f, 240.0f / 255.0f, 1.0f);                   //#A020F0
 215 static constexpr Vector4 RED(1.0f, 0.0f, 0.0f, 1.0f);                                                      //#FF0000
 216 static constexpr Vector4 ROSY_BROWN(188.0f / 255.0f, 143.0f / 255.0f, 143.0f / 255.0f, 1.0f);              //#BC8F8F
 217 static constexpr Vector4 ROYAL_BLUE(65.0f / 255.0f, 105.0f / 255.0f, 225.0f / 255.0f, 1.0f);               //#4169E1
 218 static constexpr Vector4 SADDLE_BROWN(139.0f / 255.0f, 69.0f / 255.0f, 19.0f / 255.0f, 1.0f);              //#8B4513
 219 static constexpr Vector4 SALMON(250.0f / 255.0f, 128.0f / 255.0f, 114.0f / 255.0f, 1.0f);                  //#FA8072
 220 static constexpr Vector4 SANDY_BROWN(244.0f / 255.0f, 164.0f / 255.0f, 96.0f / 255.0f, 1.0f);              //#F4A460
 221 static constexpr Vector4 SEA_GREEN(46.0f / 255.0f, 139.0f / 255.0f, 87.0f / 255.0f, 1.0f);                 //#2E8B57
 222 static constexpr Vector4 SEA_SHELL(1.0f, 245.0f / 255.0f, 238.0f / 255.0f, 1.0f);                          //#FFF5EE
 223 static constexpr Vector4 SIENNA(160.0f / 255.0f, 82.0f / 255.0f, 45.0f / 255.0f, 1.0f);                    //#A0522D
 224 static constexpr Vector4 SILVER(192.0f / 255.0f, 192.0f / 255.0f, 192.0f / 255.0f, 1.0f);                  //#C0C0C0
 225 static constexpr Vector4 SKY_BLUE(135.0f / 255.0f, 206.0f / 255.0f, 235.0f / 255.0f, 1.0f);                //#87CEEB
 226 static constexpr Vector4 SLATE_BLUE(106.0f / 255.0f, 90.0f / 255.0f, 205.0f / 255.0f, 1.0f);               //#6A5ACD
 227 static constexpr Vector4 SLATE_GRAY(112.0f / 255.0f, 128.0f / 255.0f, 144.0f / 255.0f, 1.0f);              //#708090
 228 static constexpr Vector4 SLATE_GREY(112.0f / 255.0f, 128.0f / 255.0f, 144.0f / 255.0f, 1.0f);              //#708090
 229 static constexpr Vector4 SNOW(1.0f, 250.0f / 255.0f, 250.0f / 255.0f, 1.0f);                               //#FFFAFA
 230 static constexpr Vector4 SPRING_GREEN(0.0f, 1.0f, 127.0f / 255.0f, 1.0f);                                  //#00FF7F
 231 static constexpr Vector4 STEEL_BLUE(70.0f / 255.0f, 130.0f / 255.0f, 180.0f / 255.0f, 1.0f);               //#4682B4
 232 static constexpr Vector4 TAN(210.0f / 255.0f, 180.0f / 255.0f, 140.0f / 255.0f, 1.0f);                     //#D2B48C
 233 static constexpr Vector4 TEAL(0.0f, 128.0f / 255.0f, 128.0f / 255.0f, 1.0f);                               //#008080
 234 static constexpr Vector4 THISTLE(216.0f / 255.0f, 191.0f / 255.0f, 216.0f / 255.0f, 1.0f);                 //#D8BFD8
 235 static constexpr Vector4 TOMATO(1.0f, 99.0f / 255.0f, 71.0f / 255.0f, 1.0f);                               //#FF6347
 236 static constexpr Vector4 TRANSPARENT(0.0f, 0.0f, 0.0f, 0.0f);                                              //#000000
 237 static constexpr Vector4 TURQUOISE(64.0f / 255.0f, 224.0f / 255.0f, 208.0f / 255.0f, 1.0f);                //#40E0D0
 238 static constexpr Vector4 VIOLET(238.0f / 255.0f, 130.0f / 255.0f, 238.0f / 255.0f, 1.0f);                  //#EE82EE
 239 static constexpr Vector4 WHEAT(245.0f / 255.0f, 222.0f / 255.0f, 179.0f / 255.0f, 1.0f);                   //#F5DEB3
 240 static constexpr Vector4 WHITE(1.0f, 1.0f, 1.0f, 1.0f);                                                    //#FFFFFF
 241 static constexpr Vector4 WHITE_SMOKE(245.0f / 255.0f, 245.0f / 255.0f, 245.0f / 255.0f, 1.0f);             //#F5F5F5
 242 static constexpr Vector4 YELLOW(1.0f, 1.0f, 0.0f, 1.0f);                                                   //#FFFF00
 243 static constexpr Vector4 YELLOW_GREEN(154.0f / 255.0f, 205.0f / 255.0f, 50.0f / 255.0f, 1.0f);             //#9ACD32
 244
 245 } // namespace Color
 246
 247 /**
 248  * @brief Math constants.
 249  * @SINCE_1_0.0
 250  */
 251 namespace Math
 252 {
 253 static constexpr float MACHINE_EPSILON_0     = Epsilon<0>::value;
 254 static constexpr float MACHINE_EPSILON_1     = Epsilon<1>::value;
 255 static constexpr float MACHINE_EPSILON_10    = Epsilon<10>::value;
 256 static constexpr float MACHINE_EPSILON_100   = Epsilon<100>::value;
 257 static constexpr float MACHINE_EPSILON_1000  = Epsilon<1000>::value;
 258 static constexpr float MACHINE_EPSILON_10000 = Epsilon<10000>::value;
 259
 260 // float is preferred to double for performance on ARM targets
 261 static constexpr float PI            = static_cast<float>(M_PI);   ///< Pi
 262 static constexpr float PI_2          = static_cast<float>(M_PI_2); ///< Pi/2
 263 static constexpr float PI_4          = static_cast<float>(M_PI_4); ///< Pi/4
 264 static constexpr float PI_OVER_180   = Dali::Math::PI / 180.0f;    ///< Constant used to convert degree to radian
 265 static constexpr float ONE80_OVER_PI = 180.0f / Dali::Math::PI;    ///< Constant used to convert radian to degree
 266
 267 } // namespace Math
 268
 269 // background colors
 270 static constexpr Vector4 DEFAULT_BACKGROUND_COLOR = Color::BLACK;
 271 static constexpr Vector4 DEBUG_BACKGROUND_COLOR(0.2f, 0.5f, 0.2f, 1.0f); ///< Dark green, useful for debugging visuals (texture / shader issues / culling etc.).
 272
 273 /**
 274  * @}
 275  */
 276 } // namespace Dali
 277
 278 #endif // DALI_CONSTANTS_H