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Theme.vala in libbirdfont

This file is a part of the Birdfont project.

Contributing

Send patches or pull requests to johan.mattsson.m@gmail.com.
Clone this repository: git clone https://github.com/johanmattssonm/birdfont.git

Revisions

View the latest version of libbirdfont/Theme.vala.
Suppress zoom when canvas is moving
1 /* 2 Copyright (C) 2015 Johan Mattsson 3 4 This library is free software; you can redistribute it and/or modify 5 it under the terms of the GNU Lesser General Public License as 6 published by the Free Software Foundation; either version 3 of the 7 License, or (at your option) any later version. 8 9 This library is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 */ 14 15 using Bird; 16 using Cairo; 17 18 namespace BirdFont { 19 20 public class Theme : GLib.Object { 21 22 static Gee.HashMap<string, Color> colors; 23 public static Gee.ArrayList<string> color_list; 24 public static Gee.ArrayList<string> themes; 25 public static string current_theme; 26 27 public static void text_color (Text text, string name) { 28 Color c; 29 30 if (unlikely (!colors.has_key (name))) { 31 warning (@"Theme does not have a color for $name"); 32 return; 33 } 34 35 c = colors.get (name); 36 text.set_source_rgba (c.r, c.g, c.b, c.a); 37 } 38 39 public static void color (Context cr, string name) { 40 Color c; 41 42 if (unlikely (!colors.has_key (name))) { 43 warning (@"Theme does not have a color for $name"); 44 return; 45 } 46 47 c = colors.get (name); 48 cr.set_source_rgba (c.r, c.g, c.b, c.a); 49 } 50 51 public static void color_opacity (Context cr, string name, double opacity) { 52 Color c; 53 54 if (unlikely (!colors.has_key (name))) { 55 warning (@"Theme does not have a color for $name"); 56 return; 57 } 58 59 c = colors.get (name); 60 cr.set_source_rgba (c.r, c.g, c.b, opacity); 61 } 62 63 public static void gradient (Cairo.Pattern p, string name1, string name2) { 64 Color c1 = get_color (name1); 65 Color c2 = get_color (name2); 66 67 p.add_color_stop_rgba (1, c1.r, c1.g, c1.b, c1.a); 68 p.add_color_stop_rgba (0, c2.r, c2.g, c2.b, c2.a); 69 } 70 71 public static void text_color_opacity (Text text, string name, double opacity) { 72 Color c; 73 74 if (unlikely (!colors.has_key (name))) { 75 warning (@"Theme does not have a color for $name"); 76 return; 77 } 78 79 c = colors.get (name); 80 text.set_source_rgba (c.r, c.g, c.b, opacity); 81 } 82 83 public static Color get_color (string name) { 84 if (unlikely (!colors.has_key (name))) { 85 warning (@"Theme does not have a color for $name"); 86 return new Color (0, 0, 0, 1); 87 } 88 89 return colors.get (name); 90 } 91 92 public static void set_default_colors () { 93 current_theme = "default.theme"; 94 color_list = new Gee.ArrayList<string> (); 95 colors = new Gee.HashMap<string, Color> (); 96 themes = new Gee.ArrayList<string> (); 97 98 add_theme_files (); 99 100 Theme.set_default_color ("Stroke Color", 0, 0, 0, 1); 101 Theme.set_default_color ("Handle Color", 0, 0, 0, 1); 102 Theme.set_default_color ("Fill Color", 0.5, 0.5, 0.5, 1); 103 104 Theme.set_default_color ("Background 1", 1, 1, 1, 1); 105 Theme.set_default_color ("Background 2", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 106 Theme.set_default_color ("Background 3", 38 / 255.0, 39 / 255.0, 43 / 255.0, 1); 107 Theme.set_default_color ("Background 4", 51 / 255.0, 54 / 255.0, 59 / 255.0, 1); 108 Theme.set_default_color ("Background 5", 0.3, 0.3, 0.3, 1); 109 Theme.set_default_color ("Background 6", 224/255.0, 224/255.0, 224/255.0, 1); 110 Theme.set_default_color ("Background 7", 56 / 255.0, 59 / 255.0, 65 / 255.0, 1); 111 Theme.set_default_color ("Background 8", 55/255.0, 55/255.0, 55/255.0, 1); 112 Theme.set_default_color ("Background 9", 72/255.0, 72/255.0, 72/255.0, 1); 113 Theme.set_default_color ("Background 10", 223/255.0, 223/255.0, 223/255.0, 1); 114 115 Theme.set_default_color ("Foreground 1", 0, 0, 0, 1); 116 Theme.set_default_color ("Foreground 2", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 117 Theme.set_default_color ("Foreground 3", 26 / 255.0, 30 / 255.0, 32 / 255.0, 1); 118 Theme.set_default_color ("Foreground 4", 40 / 255.0, 57 / 255.0, 65 / 255.0, 1); 119 Theme.set_default_color ("Foreground 5", 70 / 255.0, 77 / 255.0, 83 / 255.0, 1); 120 Theme.set_default_color ("Foreground 6", 45 / 255.0, 45 / 255.0, 45 / 255.0, 1); 121 Theme.set_default_color ("Foreground 7", 219 / 255.0, 221 / 255.0, 233 / 255.0, 1); 122 123 Theme.set_default_color ("Foreground Inverted", 1, 1, 1, 1); 124 Theme.set_default_color ("Menu Foreground", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 125 126 Theme.set_default_color ("Highlighted 1", 234 / 255.0, 77 / 255.0, 26 / 255.0, 1); 127 128 Theme.set_default_color ("Highlighted Guide", 0, 0, 0.3, 1); 129 Theme.set_default_color ("Guide 1", 0.7, 0.7, 0.8, 1); 130 Theme.set_default_color ("Guide 2", 0.7, 0, 0, 0.5); 131 Theme.set_default_color ("Guide 3", 120 / 255.0, 68 / 255.0, 120 / 255.0, 120 / 255.0); 132 133 Theme.set_default_color ("Grid",0.2, 0.6, 0.2, 0.2); 134 135 Theme.set_default_color ("Background Glyph", 0.2, 0.2, 0.2, 0.5); 136 137 Theme.set_default_color ("Button Border 1", 38 / 255.0, 39 / 255.0, 43 / 255.0, 1); 138 Theme.set_default_color ("Button Background 1", 14 / 255.0, 16 / 255.0, 17 / 255.0, 1); 139 140 Theme.set_default_color ("Button Border 2", 38 / 255.0, 39 / 255.0, 43 / 255.0, 1); 141 Theme.set_default_color ("Button Background 2", 26 / 255.0, 30 / 255.0, 32 / 255.0, 1); 142 143 Theme.set_default_color ("Button Border 3", 38 / 255.0, 39 / 255.0, 43 / 255.0, 1); 144 Theme.set_default_color ("Button Background 3", 44 / 255.0, 47 / 255.0, 51 / 255.0, 1); 145 146 Theme.set_default_color ("Button Border 4", 38 / 255.0, 39 / 255.0, 43 / 255.0, 1); 147 Theme.set_default_color ("Button Background 4", 33 / 255.0, 36 / 255.0, 39 / 255.0, 1); 148 149 Theme.set_default_color ("Button Foreground", 1, 1, 1, 1); 150 Theme.set_default_color ("Selected Button Foreground", 1, 1, 1, 1); 151 152 Theme.set_default_color ("Tool Foreground", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 153 Theme.set_default_color ("Selected Tool Foreground", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 154 155 Theme.set_default_color ("Selected Tool Foreground", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 156 157 Theme.set_default_color ("Text Area Background", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 158 159 Theme.set_default_color ("Selected Overview Item 1", 208 / 255.0, 208 / 255.0, 208 / 255.0, 1); 160 Theme.set_default_color ("Selected Overview Item 2", 229 / 255.0, 229 / 255.0, 229 / 255.0, 1); 161 162 Theme.set_default_color ("Overview Item 1", 236 / 255.0, 236 / 255.0, 236 / 255.0, 1); 163 Theme.set_default_color ("Overview Item 2", 246 / 255.0, 246 / 255.0, 246 / 255.0, 1); 164 165 Theme.set_default_color ("Overview Selected Foreground", 45 / 255.0, 45 / 255.0, 45 / 255.0, 1); 166 Theme.set_default_color ("Overview Foreground", 45 / 255.0, 45 / 255.0, 45 / 255.0, 1); 167 168 Theme.set_default_color ("Glyph Count Background", 101 / 255.0, 108 / 255.0, 116 / 255.0, 1); 169 170 Theme.set_default_color ("Dialog Shadow", 0, 0, 0, 0.3); 171 172 Theme.set_default_color ("Selected Active Cubic Control Point", 0, 0, 0, 1); 173 Theme.set_default_color ("Selected Cubic Control Point", 0, 0, 0, 1); 174 Theme.set_default_color ("Active Cubic Control Point", 70 / 255.0, 70 / 255.0, 70 / 255.0, 1); 175 Theme.set_default_color ("Cubic Control Point", 116 / 255.0, 116 / 255.0, 116 / 255.0, 1); 176 177 Theme.set_default_color ("Selected Active Quadratic Control Point", 0, 0, 0, 1); 178 Theme.set_default_color ("Selected Quadratic Control Point", 0, 0, 0, 1); 179 Theme.set_default_color ("Active Quadratic Control Point", 85 / 255.0, 115 / 255.0, 149 / 255.0, 1); 180 Theme.set_default_color ("Quadratic Control Point", 123 / 255.0, 151 / 255.0, 184 / 255.0, 1); 181 182 Theme.set_default_color ("Selected Control Point Handle", 0, 0, 0, 1); 183 Theme.set_default_color ("Active Control Point Handle", 81 / 255.0, 147 / 255.0, 90 / 255.0, 1); 184 Theme.set_default_color ("Control Point Handle", 81 / 255.0, 147 / 255.0, 90 / 255.0, 1); 185 186 Theme.set_default_color ("Merge", 101 / 255.0, 108 / 255.0, 116 / 255.0, 0.3); 187 188 if (BirdFont.has_argument ("--test")) { 189 current_theme = "generated_theme.theme"; 190 write_theme (); 191 192 t_("Stroke Color"); 193 t_("Handle Color"); 194 t_("Fill Color"); 195 196 t_("Background 1"); 197 t_("Background 2"); 198 t_("Background 3"); 199 t_("Background 4"); 200 t_("Background 5"); 201 t_("Background 6"); 202 t_("Background 7"); 203 t_("Background 8"); 204 t_("Background 9"); 205 206 t_("Foreground 1"); 207 t_("Foreground 2"); 208 t_("Foreground 3"); 209 t_("Foreground 4"); 210 t_("Foreground 5"); 211 t_("Foreground 6"); 212 t_("Foreground 7"); 213 t_("Foreground Inverted"); 214 t_("Menu Foreground"); 215 216 t_("Highlighted 1"); 217 t_("Highlighted Guide"); 218 219 t_("Grid"); 220 221 t_("Guide 1"); 222 t_("Guide 2"); 223 t_("Guide 3"); 224 225 t_("Button Border 1"); 226 t_("Button Background 1"); 227 t_("Button Border 2"); 228 t_("Button Background 2"); 229 t_("Button Border 3"); 230 t_("Button Background 3"); 231 t_("Button Border 4"); 232 t_("Button Background 4"); 233 234 t_("Button Foreground"); 235 t_("Selected Button Foreground"); 236 237 t_("Tool Foreground"); 238 t_("Selected Tool Foreground"); 239 240 t_("Text Area Background"); 241 242 t_("Selected Overview Item 1"); 243 t_("Selected Overview Item 2"); 244 245 t_("Overview Item 1"); 246 t_("Overview Item 2"); 247 248 t_("Overview Selected Foreground"); 249 t_("Overview Foreground"); 250 251 t_("Glyph Count Background"); 252 253 t_("Dialog Shadow"); 254 255 t_("Selected Active Cubic Control Point"); 256 t_("Selected Cubic Control Point"); 257 t_("Active Cubic Control Point"); 258 t_("Cubic Control Point"); 259 260 t_("Selected Active Quadratic Control Point"); 261 t_("Selected Quadratic Control Point"); 262 t_("Active Quadratic Control Point"); 263 t_("Cubic Quadratic Point"); 264 265 t_("Selected Control Point Handle"); 266 t_("Active Control Point Handle"); 267 t_("Control Point Handle"); 268 269 t_("Merge"); 270 } 271 } 272 273 static void add_theme_files () { 274 FileEnumerator enumerator; 275 FileInfo? file_info; 276 string file_name; 277 File dir; 278 279 dir = BirdFont.get_settings_directory (); 280 281 themes.clear (); 282 themes.add ("default.theme"); 283 themes.add ("high_contrast.theme"); 284 285 try { 286 enumerator = dir.enumerate_children (FileAttribute.STANDARD_NAME, 0); 287 while ((file_info = enumerator.next_file ()) != null) { 288 file_name = ((!) file_info).get_name (); 289 290 if (file_name.has_suffix (".theme")) { 291 themes.add (file_name); 292 } 293 } 294 } catch (Error e) { 295 warning (e.message); 296 } 297 } 298 299 public static void set_default_color (string name, double r, double g, double b, double a) { 300 color_list.add (name); 301 colors.set (name, new Color (r, g, b, a)); 302 } 303 304 public static void save_color (string name, double r, double g, double b, double a) { 305 colors.set (name, new Color (r, g, b, a)); 306 write_theme (); 307 } 308 309 public static void load_theme (string theme_file) { 310 File default_theme; 311 File user_theme; 312 313 user_theme = get_child (BirdFont.get_settings_directory (), theme_file); 314 if (user_theme.query_exists ()) { 315 current_theme = theme_file; 316 parse_theme (user_theme); 317 return; 318 } 319 320 default_theme = SearchPaths.find_file (null, theme_file); 321 if (default_theme.query_exists ()) { 322 current_theme = theme_file; 323 parse_theme (default_theme); 324 return; 325 } 326 327 warning (@"Theme not found: $theme_file"); 328 } 329 330 public static void write_theme () { 331 DataOutputStream os; 332 File file; 333 int i; 334 string base_name; 335 336 if (current_theme == "") { 337 warning ("No name for theme."); 338 return; 339 } 340 341 if (current_theme == "default.theme" || current_theme == "high_contrast.theme") { 342 current_theme = "custom.theme"; 343 344 file = get_child (BirdFont.get_settings_directory (), current_theme); 345 i = 2; 346 base_name = "custom"; 347 while (file.query_exists ()) { 348 current_theme = @"$(base_name)_theme_$(i).theme"; 349 file = get_child (BirdFont.get_settings_directory (), current_theme); 350 i++; 351 } 352 } 353 354 file = get_child (BirdFont.get_settings_directory (), current_theme); 355 356 try { 357 if (file.query_exists ()) { 358 file.delete (); 359 } 360 } catch (GLib.Error e) { 361 warning (e.message); 362 } 363 364 try { 365 os = new DataOutputStream (file.create (FileCreateFlags.REPLACE_DESTINATION)); 366 os.put_string ("""<?xml version="1.0" encoding="utf-8" standalone="yes"?>"""); 367 os.put_string ("\n"); 368 369 os.put_string ("<theme>\n"); 370 foreach (string name in colors.keys) { 371 Color color = colors.get (name); 372 373 os.put_string ("\t<color "); 374 375 os.put_string (@"name=\"$(Markup.escape_text (name))\" "); 376 os.put_string (@"red=\"$(color.r)\" "); 377 os.put_string (@"green=\"$(color.g)\" "); 378 os.put_string (@"blue=\"$(color.b)\" "); 379 os.put_string (@"alpha=\"$(color.a)\""); 380 381 os.put_string ("/>\n"); 382 } 383 os.put_string ("</theme>\n"); 384 385 os.close (); 386 } catch (GLib.Error e) { 387 warning (e.message); 388 } 389 390 add_theme_files (); 391 } 392 393 static void parse_theme (File f) { 394 string xml_data; 395 XmlParser parser; 396 397 try { 398 FileUtils.get_contents((!) f.get_path (), out xml_data); 399 parser = new XmlParser (xml_data); 400 parse_colors (parser.get_root_tag ()); 401 } catch (GLib.Error e) { 402 warning (e.message); 403 } 404 } 405 406 static void parse_colors (Tag tag) { 407 foreach (Tag t in tag) { 408 if (t.get_name () == "color") { 409 parse_color (t.get_attributes ()); 410 } 411 } 412 } 413 414 static void parse_color (Attributes attributes) { 415 string name = ""; 416 double r = 0; 417 double g = 0; 418 double b = 0; 419 double a = 1; 420 421 foreach (Attribute attr in attributes) { 422 if (attr.get_name () == "name") { 423 name = attr.get_content (); 424 } 425 426 if (attr.get_name () == "red") { 427 r = double.parse (attr.get_content ()); 428 } 429 430 if (attr.get_name () == "green") { 431 g = double.parse (attr.get_content ()); 432 } 433 434 if (attr.get_name () == "blue") { 435 b = double.parse (attr.get_content ()); 436 } 437 438 if (attr.get_name () == "alpha") { 439 a = double.parse (attr.get_content ()); 440 } 441 } 442 443 colors.set (name, new Color (r, g, b, a)); 444 } 445 446 public static void add_new_theme (SettingsDisplay d) { 447 TextListener listener; 448 449 listener = new TextListener (t_("New theme"), "", t_("Set")); 450 451 listener.signal_text_input.connect ((text) => { 452 if (text != "") { 453 current_theme = text + ".theme"; 454 themes.add (current_theme); 455 } 456 }); 457 458 listener.signal_submit.connect (() => { 459 TabContent.hide_text_input (); 460 write_theme (); 461 d.create_setting_items (); 462 }); 463 464 TabContent.show_text_input (listener); 465 } 466 467 public static string get_icon_file () { 468 string icons; 469 File f; 470 471 return_val_if_fail (!is_null (current_theme), "icons.bf".dup ()); 472 return_val_if_fail (current_theme != "", "icons.bf".dup ()); 473 474 if (current_theme == "default.theme" || current_theme == "high_contrast.theme") { 475 return "icons.bf".dup (); 476 } 477 478 icons = current_theme.replace (".theme", ".bf"); 479 f = SearchPaths.search_file (null, icons); 480 481 if (f.query_exists ()) { 482 return icons; 483 } 484 485 return "icons.bf".dup (); 486 } 487 } 488 489 } 490