color_mode.cpp 15 KB

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  1. /**************************************************************************/
  2. /* color_mode.cpp */
  3. /**************************************************************************/
  4. /* This file is part of: */
  5. /* GODOT ENGINE */
  6. /* https://godotengine.org */
  7. /**************************************************************************/
  8. /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
  9. /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
  10. /* */
  11. /* Permission is hereby granted, free of charge, to any person obtaining */
  12. /* a copy of this software and associated documentation files (the */
  13. /* "Software"), to deal in the Software without restriction, including */
  14. /* without limitation the rights to use, copy, modify, merge, publish, */
  15. /* distribute, sublicense, and/or sell copies of the Software, and to */
  16. /* permit persons to whom the Software is furnished to do so, subject to */
  17. /* the following conditions: */
  18. /* */
  19. /* The above copyright notice and this permission notice shall be */
  20. /* included in all copies or substantial portions of the Software. */
  21. /* */
  22. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
  23. /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
  24. /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
  25. /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
  26. /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
  27. /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
  28. /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
  29. /**************************************************************************/
  30. #include "color_mode.h"
  31. #include "core/math/color.h"
  32. #include "scene/gui/slider.h"
  33. #include "scene/resources/gradient_texture.h"
  34. ColorMode::ColorMode(ColorPicker *p_color_picker) {
  35. color_picker = p_color_picker;
  36. }
  37. String ColorModeRGB::get_slider_label(int idx) const {
  38. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), String(), "Couldn't get slider label.");
  39. return labels[idx];
  40. }
  41. float ColorModeRGB::get_slider_value(int idx) const {
  42. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), 0, "Couldn't get slider value.");
  43. return color_picker->color_normalized.components[idx] * 255;
  44. }
  45. Color ColorModeRGB::get_color() const {
  46. Vector<float> values = color_picker->get_active_slider_values();
  47. Color color;
  48. for (int i = 0; i < 4; i++) {
  49. color.components[i] = values[i] / 255.0;
  50. }
  51. return color;
  52. }
  53. void ColorModeRGB::_greater_value_inputted() {
  54. HSlider **sliders = color_picker->sliders;
  55. Color color_prev = color_picker->color;
  56. for (int i = 0; i < 3; i++) {
  57. if (sliders[i]->get_value() > 255) {
  58. color_prev.components[i] = sliders[i]->get_value() / 255.0;
  59. }
  60. }
  61. Color linear_color = color_prev.srgb_to_linear();
  62. float multiplier = MAX(1, MAX(MAX(linear_color.r, linear_color.g), linear_color.b));
  63. Color srgb = Color(linear_color.r / multiplier, linear_color.g / multiplier, linear_color.b / multiplier, linear_color.a).linear_to_srgb();
  64. sliders[0]->set_value_no_signal(srgb.r * 255);
  65. sliders[1]->set_value_no_signal(srgb.g * 255);
  66. sliders[2]->set_value_no_signal(srgb.b * 255);
  67. color_picker->intensity = Math::log2(multiplier);
  68. color_picker->intensity_slider->set_value_no_signal(color_picker->intensity);
  69. }
  70. void ColorModeRGB::slider_draw(int p_which) {
  71. Vector<Vector2> pos;
  72. pos.resize(4);
  73. Vector<Color> col;
  74. col.resize(4);
  75. HSlider *slider = color_picker->get_slider(p_which);
  76. Size2 size = slider->get_size();
  77. Color left_color;
  78. Color right_color;
  79. Color color = color_picker->color_normalized;
  80. const real_t margin = 16 * color_picker->theme_cache.base_scale;
  81. left_color = Color(
  82. p_which == 0 ? 0 : color.r,
  83. p_which == 1 ? 0 : color.g,
  84. p_which == 2 ? 0 : color.b);
  85. right_color = Color(
  86. p_which == 0 ? 1 : color.r,
  87. p_which == 1 ? 1 : color.g,
  88. p_which == 2 ? 1 : color.b);
  89. if (rgb_texture[p_which].is_null()) {
  90. rgb_texture[p_which].instantiate();
  91. rgb_texture[p_which]->set_width(400);
  92. rgb_texture[p_which]->set_height(6);
  93. }
  94. Ref<GradientTexture2D> gradient_texture = rgb_texture[p_which];
  95. Ref<Gradient> gradient = gradient_texture->get_gradient();
  96. if (gradient.is_null()) {
  97. gradient.instantiate();
  98. PackedFloat32Array offsets = { 0, 1 };
  99. gradient->set_offsets(offsets);
  100. gradient->set_interpolation_color_space(Gradient::ColorSpace::GRADIENT_COLOR_SPACE_SRGB);
  101. gradient_texture->set_gradient(gradient);
  102. }
  103. PackedColorArray colors = { left_color, right_color };
  104. gradient->set_colors(colors);
  105. slider->draw_texture_rect(gradient_texture, Rect2(Vector2(), Vector2(size.x, margin)), false);
  106. }
  107. void ColorModeHSV::_value_changed() {
  108. Vector<float> values = color_picker->get_active_slider_values();
  109. if (values[1] > 0 || values[0] != cached_hue) {
  110. cached_hue = values[0];
  111. }
  112. if (values[2] > 0 || values[1] != cached_saturation) {
  113. cached_saturation = values[1];
  114. }
  115. // Cache real HSV values in ColorPicker.
  116. color_picker->h = color_picker->sliders[0]->get_value() / 360.0;
  117. color_picker->s = color_picker->sliders[1]->get_value() / 100.0;
  118. color_picker->v = color_picker->sliders[2]->get_value() / 100.0;
  119. color_picker->hsv_cached = true;
  120. }
  121. String ColorModeHSV::get_slider_label(int idx) const {
  122. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), String(), "Couldn't get slider label.");
  123. return labels[idx];
  124. }
  125. float ColorModeHSV::get_slider_max(int idx) const {
  126. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), 0, "Couldn't get slider max value.");
  127. return slider_max[idx];
  128. }
  129. float ColorModeHSV::get_slider_value(int idx) const {
  130. switch (idx) {
  131. case 0: {
  132. if (color_picker->color_normalized.get_s() > 0) {
  133. return color_picker->color_normalized.get_h() * 360.0;
  134. } else {
  135. return cached_hue;
  136. }
  137. }
  138. case 1: {
  139. if (color_picker->color_normalized.get_v() > 0) {
  140. return color_picker->color_normalized.get_s() * 100.0;
  141. } else {
  142. return cached_saturation;
  143. }
  144. }
  145. case 2:
  146. return color_picker->color_normalized.get_v() * 100.0;
  147. default:
  148. ERR_FAIL_V_MSG(0, "Couldn't get slider value.");
  149. }
  150. }
  151. Color ColorModeHSV::get_color() const {
  152. Vector<float> values = color_picker->get_active_slider_values();
  153. Color color = Color::from_hsv(values[0] / 360.0, values[1] / 100.0, values[2] / 100.0, values[3] / 255.0);
  154. return color;
  155. }
  156. void ColorModeHSV::slider_draw(int p_which) {
  157. Vector<Vector2> pos;
  158. pos.resize(4);
  159. Vector<Color> col;
  160. col.resize(4);
  161. HSlider *slider = color_picker->get_slider(p_which);
  162. Size2 size = slider->get_size();
  163. Color left_color;
  164. Color right_color;
  165. Color color = color_picker->color_normalized;
  166. const real_t margin = 16 * color_picker->theme_cache.base_scale;
  167. if (p_which == 0) {
  168. float v = color.get_v();
  169. left_color = Color(v, v, v);
  170. right_color = left_color;
  171. } else {
  172. Color s_col;
  173. Color v_col;
  174. s_col.set_hsv(color.get_h(), 0, color.get_v());
  175. left_color = (p_which == 1) ? s_col : Color(0, 0, 0);
  176. float s_col_hue = (Math::is_zero_approx(color.get_s())) ? cached_hue / 360.0 : color.get_h();
  177. s_col.set_hsv(s_col_hue, 1, color.get_v());
  178. v_col.set_hsv(color.get_h(), color.get_s(), 1);
  179. right_color = (p_which == 1) ? s_col : v_col;
  180. }
  181. col.set(0, left_color);
  182. col.set(1, right_color);
  183. col.set(2, right_color);
  184. col.set(3, left_color);
  185. pos.set(0, Vector2(0, 0));
  186. pos.set(1, Vector2(size.x, 0));
  187. pos.set(2, Vector2(size.x, margin));
  188. pos.set(3, Vector2(0, margin));
  189. slider->draw_polygon(pos, col);
  190. if (p_which == 0) { // H
  191. Ref<Texture2D> hue = color_picker->theme_cache.color_hue;
  192. slider->draw_texture_rect(hue, Rect2(Vector2(), Vector2(size.x, margin)), false, Color::from_hsv(0, 0, color.get_v(), color.get_s()));
  193. }
  194. }
  195. String ColorModeLinear::get_slider_label(int idx) const {
  196. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), String(), "Couldn't get slider label.");
  197. return labels[idx];
  198. }
  199. float ColorModeLinear::get_slider_max(int idx) const {
  200. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), 0, "Couldn't get slider max value.");
  201. return slider_max[idx];
  202. }
  203. float ColorModeLinear::get_slider_value(int idx) const {
  204. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), 0, "Couldn't get slider value.");
  205. Color color = color_picker->color_normalized.srgb_to_linear();
  206. return color.components[idx];
  207. }
  208. float ColorModeLinear::get_alpha_slider_max() const {
  209. return 1;
  210. }
  211. float ColorModeLinear::get_alpha_slider_value() const {
  212. return color_picker->get_pick_color().a;
  213. }
  214. Color ColorModeLinear::get_color() const {
  215. Vector<float> values = color_picker->get_active_slider_values();
  216. Color color;
  217. for (int i = 0; i < 4; i++) {
  218. color.components[i] = values[i];
  219. }
  220. return color.linear_to_srgb();
  221. }
  222. void ColorModeLinear::_greater_value_inputted() {
  223. HSlider **sliders = color_picker->sliders;
  224. Color color_prev = color_picker->color;
  225. Color linear_color = color_prev.srgb_to_linear();
  226. for (int i = 0; i < 3; i++) {
  227. if (sliders[i]->get_value() > 1 + CMP_EPSILON) {
  228. linear_color.components[i] = sliders[i]->get_value();
  229. }
  230. }
  231. float multiplier = MAX(1, MAX(MAX(linear_color.r, linear_color.g), linear_color.b));
  232. sliders[0]->set_value_no_signal(linear_color.r / multiplier);
  233. sliders[1]->set_value_no_signal(linear_color.g / multiplier);
  234. sliders[2]->set_value_no_signal(linear_color.b / multiplier);
  235. color_picker->intensity = Math::log2(multiplier);
  236. color_picker->intensity_slider->set_value_no_signal(color_picker->intensity);
  237. }
  238. void ColorModeLinear::slider_draw(int p_which) {
  239. Vector<Vector2> pos;
  240. pos.resize(4);
  241. Vector<Color> col;
  242. col.resize(4);
  243. HSlider *slider = color_picker->get_slider(p_which);
  244. Size2 size = slider->get_size();
  245. Color left_color;
  246. Color right_color;
  247. Color color = color_picker->color_normalized.linear_to_srgb();
  248. const real_t margin = 16 * color_picker->theme_cache.base_scale;
  249. left_color = Color(
  250. p_which == 0 ? 0 : color.r,
  251. p_which == 1 ? 0 : color.g,
  252. p_which == 2 ? 0 : color.b);
  253. right_color = Color(
  254. p_which == 0 ? 1 : color.r,
  255. p_which == 1 ? 1 : color.g,
  256. p_which == 2 ? 1 : color.b);
  257. if (rgb_texture[p_which].is_null()) {
  258. rgb_texture[p_which].instantiate();
  259. rgb_texture[p_which]->set_width(400);
  260. rgb_texture[p_which]->set_height(6);
  261. }
  262. Ref<GradientTexture2D> gradient_texture = rgb_texture[p_which];
  263. Ref<Gradient> gradient = gradient_texture->get_gradient();
  264. if (gradient.is_null()) {
  265. gradient.instantiate();
  266. PackedFloat32Array offsets = { 0, 1 };
  267. gradient->set_offsets(offsets);
  268. gradient->set_interpolation_color_space(Gradient::ColorSpace::GRADIENT_COLOR_SPACE_LINEAR_SRGB);
  269. gradient_texture->set_gradient(gradient);
  270. }
  271. PackedColorArray colors = { left_color, right_color };
  272. gradient->set_colors(colors);
  273. slider->draw_texture_rect(gradient_texture, Rect2(Vector2(), Vector2(size.x, margin)), false);
  274. }
  275. void ColorModeOKHSL::_value_changed() {
  276. Vector<float> values = color_picker->get_active_slider_values();
  277. if (values[1] > 0 || values[0] != cached_hue) {
  278. cached_hue = values[0];
  279. }
  280. if (values[2] > 0 || values[1] != cached_saturation) {
  281. cached_saturation = values[1];
  282. }
  283. // Cache real OKHSL values in ColorPicker.
  284. color_picker->ok_hsl_h = color_picker->sliders[0]->get_value() / 360.0;
  285. color_picker->ok_hsl_s = color_picker->sliders[1]->get_value() / 100.0;
  286. color_picker->ok_hsl_l = color_picker->sliders[2]->get_value() / 100.0;
  287. color_picker->okhsl_cached = true;
  288. }
  289. String ColorModeOKHSL::get_slider_label(int idx) const {
  290. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), String(), "Couldn't get slider label.");
  291. return labels[idx];
  292. }
  293. float ColorModeOKHSL::get_slider_max(int idx) const {
  294. ERR_FAIL_INDEX_V_MSG(idx, get_slider_count(), 0, "Couldn't get slider max value.");
  295. return slider_max[idx];
  296. }
  297. float ColorModeOKHSL::get_slider_value(int idx) const {
  298. switch (idx) {
  299. case 0: {
  300. if (color_picker->color_normalized.get_ok_hsl_s() > 0) {
  301. return color_picker->color_normalized.get_ok_hsl_h() * 360.0;
  302. } else {
  303. return cached_hue;
  304. }
  305. }
  306. case 1: {
  307. if (color_picker->color_normalized.get_ok_hsl_l() > 0) {
  308. return color_picker->color_normalized.get_ok_hsl_s() * 100.0;
  309. } else {
  310. return cached_saturation;
  311. }
  312. }
  313. case 2:
  314. return color_picker->color_normalized.get_ok_hsl_l() * 100.0;
  315. default:
  316. ERR_FAIL_V_MSG(0, "Couldn't get slider value.");
  317. }
  318. }
  319. Color ColorModeOKHSL::get_color() const {
  320. Vector<float> values = color_picker->get_active_slider_values();
  321. Color color = Color::from_ok_hsl(values[0] / 360.0, values[1] / 100.0, values[2] / 100.0, values[3] / 255.0);
  322. return color;
  323. }
  324. void ColorModeOKHSL::slider_draw(int p_which) {
  325. HSlider *slider = color_picker->get_slider(p_which);
  326. Size2 size = slider->get_size();
  327. const real_t margin = 16 * color_picker->theme_cache.base_scale;
  328. Vector<Vector2> pos;
  329. Vector<Color> col;
  330. Color left_color;
  331. Color right_color;
  332. Color color = color_picker->color_normalized;
  333. float okhsl_l = color.get_ok_hsl_l();
  334. float slider_hue = (Math::is_zero_approx(color.get_ok_hsl_s())) ? cached_hue / 360.0 : color.get_ok_hsl_h();
  335. float slider_sat = (Math::is_zero_approx(okhsl_l) || Math::is_equal_approx(okhsl_l, 1)) ? cached_saturation / 100.0 : color.get_ok_hsl_s();
  336. if (p_which == 2) { // L
  337. pos.resize(6);
  338. col.resize(6);
  339. left_color = Color(0, 0, 0);
  340. Color middle_color = Color::from_ok_hsl(slider_hue, slider_sat, 0.5);
  341. right_color.set_ok_hsl(slider_hue, slider_sat, 1);
  342. col.set(0, left_color);
  343. col.set(1, middle_color);
  344. col.set(2, right_color);
  345. col.set(3, right_color);
  346. col.set(4, middle_color);
  347. col.set(5, left_color);
  348. pos.set(0, Vector2(0, 0));
  349. pos.set(1, Vector2(size.x * 0.5, 0));
  350. pos.set(2, Vector2(size.x, 0));
  351. pos.set(3, Vector2(size.x, margin));
  352. pos.set(4, Vector2(size.x * 0.5, margin));
  353. pos.set(5, Vector2(0, margin));
  354. slider->draw_polygon(pos, col);
  355. } else if (p_which == 1) { // S
  356. pos.resize(4);
  357. col.resize(4);
  358. left_color.set_ok_hsl(slider_hue, 0, okhsl_l);
  359. right_color.set_ok_hsl(slider_hue, 1, okhsl_l);
  360. col.set(0, left_color);
  361. col.set(1, right_color);
  362. col.set(2, right_color);
  363. col.set(3, left_color);
  364. pos.set(0, Vector2(0, 0));
  365. pos.set(1, Vector2(size.x, 0));
  366. pos.set(2, Vector2(size.x, margin));
  367. pos.set(3, Vector2(0, margin));
  368. slider->draw_polygon(pos, col);
  369. } else if (p_which == 0) { // H
  370. const int precision = 7;
  371. if (hue_texture.is_null()) {
  372. hue_texture.instantiate();
  373. hue_texture->set_width(400);
  374. hue_texture->set_height(6);
  375. }
  376. Ref<Gradient> hue_gradient = hue_texture->get_gradient();
  377. if (hue_gradient.is_null()) {
  378. hue_gradient.instantiate();
  379. PackedFloat32Array offsets;
  380. offsets.resize(precision);
  381. for (int i = 0; i < precision; i++) {
  382. float h = i / float(precision - 1);
  383. offsets.write[i] = h;
  384. }
  385. hue_gradient->set_offsets(offsets);
  386. hue_gradient->set_interpolation_color_space(Gradient::ColorSpace::GRADIENT_COLOR_SPACE_OKLAB);
  387. hue_texture->set_gradient(hue_gradient);
  388. }
  389. PackedColorArray colors;
  390. colors.resize(precision);
  391. for (int i = 0; i < precision; i++) {
  392. float h = i / float(precision - 1);
  393. colors.write[i] = Color::from_ok_hsl(h, slider_sat, okhsl_l);
  394. }
  395. hue_gradient->set_colors(colors);
  396. slider->draw_texture_rect(hue_texture, Rect2(Vector2(), Vector2(size.x, margin)), false);
  397. }
  398. }