2 * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.Globalization;
23 /// The Color is a struct to record Check's state.
25 /// <since_tizen> preview </since_tizen>
42 /// Gets a default Color instance.
45 /// In default Color instance,Mode type is Default,RGBA all set as -1.
47 /// <since_tizen> preview </since_tizen>
48 public static Color Default
50 get { return new Color(-1, -1, -1, -1, Mode.Default); }
54 /// Gets whether the Color instance's mode is default or not.
55 /// Return type is bool.
57 /// <since_tizen> preview </since_tizen>
60 get { return _mode == Mode.Default; }
64 /// Gets A value of RGBA.
65 /// A means the Alpha in color.
67 /// <since_tizen> preview </since_tizen>
74 /// Gets R value of RGBA.
75 /// R means the Red in color.
77 /// <since_tizen> preview </since_tizen>
84 /// Gets G value of RGBA.
85 /// G means the Green in color.
87 /// <since_tizen> preview </since_tizen>
94 /// Gets B value of RGBA.
95 /// B means the Blue in color.
97 /// <since_tizen> preview </since_tizen>
104 /// Creates and initializes a new instance of the Color class.
105 /// With RGB parameters.
107 /// <param name="r">Red of RGB</param>
108 /// <param name="g">Green of RGB</param>
109 /// <param name="b">Blue of RGB</param>
110 /// <since_tizen> preview </since_tizen>
111 public Color(int r, int g, int b) : this(r, g, b, 255)
116 /// Creates and initializes a new instance of the Color class.
117 /// With RGBA parameters.
119 /// <param name="r">Red of RGBA</param>
120 /// <param name="g">Green of RGBA</param>
121 /// <param name="b">Blue of RGBA</param>
122 /// <param name="a">Alpha of RGBA</param>
123 /// <since_tizen> preview </since_tizen>
124 public Color(int r, int g, int b, int a) : this(r, g, b, a, Mode.Rgb)
128 Color(int r, int g, int b, int a, Mode mode)
131 if (mode == Mode.Rgb)
133 _r = Clamp(r, 0, 255);
134 _g = Clamp(g, 0, 255);
135 _b = Clamp(b, 0, 255);
136 _a = Clamp(a, 0, 255);
140 _r = _g = _b = _a = -1;
145 /// Returns the hash code for this instance.
147 /// <returns>A 32-bit signed integer hash code.</returns>
148 /// <since_tizen> preview </since_tizen>
149 public override int GetHashCode()
151 int hashcode = _r.GetHashCode();
152 hashcode = (hashcode * 397) ^ _g.GetHashCode();
153 hashcode = (hashcode * 397) ^ _b.GetHashCode();
154 hashcode = (hashcode * 397) ^ _a.GetHashCode();
159 /// Indicates whether this instance and a specified object are equal.
161 /// <param name="obj">The object to compare with the current instance.</param>
163 /// true if obj and this instance are the same type and represent the same value.
164 /// otherwise, false.
166 /// <since_tizen> preview </since_tizen>
167 public override bool Equals(object obj)
171 return EqualsInner(this, (Color)obj);
173 return base.Equals(obj);
177 /// Compare whether two Color instance is same or not.
179 /// <param name="a">A Color instance.</param>
180 /// <param name="b">A Color instance.</param>
181 /// <returns>The result whether two instance is same or not.
182 /// Return type is bool.If they are same, return true.
184 /// <since_tizen> preview </since_tizen>
185 public static bool operator ==(Color a, Color b)
187 if (ReferenceEquals(a, b))
190 if ((object)a == null || (object)b == null)
193 return EqualsInner(a, b);
197 /// Compare whether two Color instance is different or not.
199 /// <param name="a">A Color instance.</param>
200 /// <param name="b">A Color instance.</param>
201 /// <returns>The result whether two instance is different or not.
202 /// Return type is bool.If they are different, return true.
204 /// <since_tizen> preview </since_tizen>
205 public static bool operator !=(Color a, Color b)
210 static bool EqualsInner(Color color1, Color color2)
212 if (color1._mode == Mode.Default && color2._mode == Mode.Default)
214 return color1._r == color2._r && color1._g == color2._g && color1._b == color2._b && color1._a == color2._a;
218 /// Returns the fully qualified type name of this instance.
220 /// <returns>The fully qualified type name.</returns>
221 /// <since_tizen> preview </since_tizen>
222 public override string ToString()
224 return string.Format(CultureInfo.InvariantCulture, "[Color: R={0}, G={1}, B={2}, A={3}]", R, G, B, A);
228 /// Gets a Color instance with a hexadecimal string parameter.
230 /// <param name="hex">Hexadecimal string.</param>
231 /// <returns>New instance of Color struct.</returns>
232 /// <since_tizen> preview </since_tizen>
233 public static Color FromHex(string hex)
235 hex = hex.Replace("#", "");
238 case 3: //#rgb => ffrrggbb
239 hex = string.Format("ff{0}{1}{2}{3}{4}{5}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2]);
241 case 4: //#argb => aarrggbb
242 hex = string.Format("{0}{1}{2}{3}{4}{5}{6}{7}", hex[0], hex[0], hex[1], hex[1], hex[2], hex[2], hex[3], hex[3]);
244 case 6: //#rrggbb => ffrrggbb
245 hex = string.Format("ff{0}", hex);
248 return FromUint(Convert.ToUInt32(hex.Replace("#", ""), 16));
252 /// Gets a Color instance with a Unsigned integer parameter.
254 /// <param name="argb">Unsigned integer indicates RGBA.</param>
255 /// <returns>New instance of Color struct.</returns>
256 /// <since_tizen> preview </since_tizen>
257 public static Color FromUint(uint argb)
259 return FromRgba((byte)((argb & 0x00ff0000) >> 0x10), (byte)((argb & 0x0000ff00) >> 0x8), (byte)(argb & 0x000000ff), (byte)((argb & 0xff000000) >> 0x18));
263 /// Gets a Color instance with R,G,B,A parameters.
265 /// <param name="r">Red in RGBA.</param>
266 /// <param name="g">Green in RGBA.</param>
267 /// <param name="b">Blue in RGBA.</param>
268 /// <param name="a">Alpha in RGBA.</param>
269 /// <returns>New instance of Color struct.</returns>
270 /// <since_tizen> preview </since_tizen>
271 public static Color FromRgba(int r, int g, int b, int a)
273 return new Color(r, g, b, a);
277 /// Gets a Color instance with R,G,B,A parameters.
279 /// <param name="r">Red in RGB.</param>
280 /// <param name="g">Green in RGB.</param>
281 /// <param name="b">Blue in RGB.</param>
282 /// <returns>New instance of Color struct.</returns>
283 /// <since_tizen> preview </since_tizen>
284 public static Color FromRgb(int r, int g, int b)
286 return FromRgba(r, g, b, 255);
289 internal static int Clamp(int self, int min, int max)
291 return Math.Min(max, Math.Max(self, min));
294 #region Color Definitions
296 /// The Tansparent is a predefined Color, it's rgba value is (0, 0, 0, 0).
298 /// <since_tizen> preview </since_tizen>
299 public static readonly Color Transparent = FromRgba(0, 0, 0, 0);
301 /// The Aqua is a predefined Color instance, it's rgb value is (0, 255, 255).
303 /// <since_tizen> preview </since_tizen>
304 public static readonly Color Aqua = FromRgb(0, 255, 255);
306 /// The Black is a predefined Color instance, it's rgb value is (0, 0, 0).
308 /// <since_tizen> preview </since_tizen>
309 public static readonly Color Black = FromRgb(0, 0, 0);
311 /// The Blue is a predefined Color instance, it's rgb value is (0, 0, 255).
313 /// <since_tizen> preview </since_tizen>
314 public static readonly Color Blue = FromRgb(0, 0, 255);
316 /// The Fuchsia is a predefined Color instance, it's rgb value is (255, 0, 255).
318 /// <since_tizen> preview </since_tizen>
319 public static readonly Color Fuchsia = FromRgb(255, 0, 255);
321 /// The Gray is a predefined Color instance, it's rgb value is (128, 128, 128).
323 /// <since_tizen> preview </since_tizen>
324 public static readonly Color Gray = FromRgb(128, 128, 128);
326 /// The Green is a predefined Color instance, it's rgb value is (0, 128, 0).
328 /// <since_tizen> preview </since_tizen>
329 public static readonly Color Green = FromRgb(0, 128, 0);
331 /// The Lime is a predefined Color instance, it's rgb value is (0, 255, 0).
333 /// <since_tizen> preview </since_tizen>
334 public static readonly Color Lime = FromRgb(0, 255, 0);
336 /// The Maroon is a predefined Color instance, it's rgb value is (128, 0, 0).
338 /// <since_tizen> preview </since_tizen>
339 public static readonly Color Maroon = FromRgb(128, 0, 0);
341 /// The Navy is a predefined Color instance, it's rgb value is (0, 0, 128).
343 /// <since_tizen> preview </since_tizen>
344 public static readonly Color Navy = FromRgb(0, 0, 128);
346 /// The Olive is a predefined Color instance, it's rgb value is (128, 128, 0).
348 /// <since_tizen> preview </since_tizen>
349 public static readonly Color Olive = FromRgb(128, 128, 0);
351 /// The Orange is a predefined Color instance, it's rgb value is (255, 165, 0).
353 /// <since_tizen> preview </since_tizen>
354 public static readonly Color Orange = FromRgb(255, 165, 0);
356 /// The Purple is a predefined Color instance, it's rgb value is (128, 0, 128).
358 /// <since_tizen> preview </since_tizen>
359 public static readonly Color Purple = FromRgb(128, 0, 128);
361 /// The Pink is a predefined Color instance, it's rgb value is (255, 102, 255).
363 /// <since_tizen> preview </since_tizen>
364 public static readonly Color Pink = FromRgb(255, 102, 255);
366 /// The Red is a predefined Color instance, it's rgb value is (255, 0, 0).
368 /// <since_tizen> preview </since_tizen>
369 public static readonly Color Red = FromRgb(255, 0, 0);
371 /// The Silver is a predefined Color instance, it's rgb value is (192, 192, 192).
373 /// <since_tizen> preview </since_tizen>
374 public static readonly Color Silver = FromRgb(192, 192, 192);
376 /// The Teal is a predefined Color instance, it's rgb value is (0, 128, 128).
378 /// <since_tizen> preview </since_tizen>
379 public static readonly Color Teal = FromRgb(0, 128, 128);
381 /// The White is a predefined Color instance, it's rgb value is (255, 255, 255).
383 /// <since_tizen> preview </since_tizen>
384 public static readonly Color White = FromRgb(255, 255, 255);
386 /// The Yellow is a predefined Color instance, it's rgb value is (255, 255, 0).
388 /// <since_tizen> preview </since_tizen>
389 public static readonly Color Yellow = FromRgb(255, 255, 0);