| 1 | /* |
| 2 | * This file is part of Disobedience |
| 3 | * Copyright (C) 2007, 2008 Richard Kettlewell |
| 4 | * |
| 5 | * This program is free software: you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | /** @file disobedience/settings.c |
| 19 | * @brief Disobedience settings |
| 20 | * |
| 21 | * Originally I attempted to use a built-in rc file to configure |
| 22 | * Disobedience's colors. This is quite convenient but fails in the |
| 23 | * face of themes, as the theme settings override the application |
| 24 | * ones. |
| 25 | * |
| 26 | * This file therefore collects all the colors of the Disobedience UI |
| 27 | * and (in time) will have a configuration dialog too. |
| 28 | */ |
| 29 | |
| 30 | #include "disobedience.h" |
| 31 | #include "inputline.h" |
| 32 | #include "split.h" |
| 33 | #include <sys/stat.h> |
| 34 | |
| 35 | /** @brief HTML displayer */ |
| 36 | const char *browser = BROWSER; |
| 37 | |
| 38 | /** @brief Default style for layouts */ |
| 39 | GtkStyle *layout_style; |
| 40 | |
| 41 | /** @brief Title-row style for layouts */ |
| 42 | GtkStyle *title_style; |
| 43 | |
| 44 | /** @brief Even-row style for layouts */ |
| 45 | GtkStyle *even_style; |
| 46 | |
| 47 | /** @brief Odd-row style for layouts */ |
| 48 | GtkStyle *odd_style; |
| 49 | |
| 50 | /** @brief Active-row style for layouts */ |
| 51 | GtkStyle *active_style; |
| 52 | |
| 53 | /** @brief Style for tools */ |
| 54 | GtkStyle *tool_style; |
| 55 | |
| 56 | /** @brief Style for search results */ |
| 57 | GtkStyle *search_style; |
| 58 | |
| 59 | /** @brief Style for drag targets */ |
| 60 | GtkStyle *drag_style; |
| 61 | |
| 62 | /** @brief Table of styles */ |
| 63 | static const struct { |
| 64 | const char *name; |
| 65 | GtkStyle **style; |
| 66 | } styles[] = { |
| 67 | { "layout", &layout_style }, |
| 68 | { "title", &title_style }, |
| 69 | { "even", &even_style }, |
| 70 | { "odd", &odd_style }, |
| 71 | { "active", &active_style }, |
| 72 | { "tool", &tool_style }, |
| 73 | { "search", &search_style }, |
| 74 | { "drag", &drag_style }, |
| 75 | }; |
| 76 | |
| 77 | #define NSTYLES (sizeof styles / sizeof *styles) |
| 78 | |
| 79 | /** @brief Table of state types */ |
| 80 | static const char *const states[] = { |
| 81 | "normal", |
| 82 | "active", |
| 83 | "prelight", |
| 84 | "selected", |
| 85 | "insensitive" |
| 86 | }; |
| 87 | |
| 88 | #define NSTATES (sizeof states / sizeof *states) |
| 89 | |
| 90 | /** @brief Table of colors */ |
| 91 | static const struct { |
| 92 | const char *name; |
| 93 | size_t offset; |
| 94 | } colors[] = { |
| 95 | { "fg", offsetof(GtkStyle, fg) }, |
| 96 | { "bg", offsetof(GtkStyle, bg) }, |
| 97 | }; |
| 98 | |
| 99 | #define NCOLORS (sizeof colors / sizeof *colors) |
| 100 | |
| 101 | /** @brief Initialize styles */ |
| 102 | void init_styles(void) { |
| 103 | layout_style = gtk_style_new(); |
| 104 | title_style = gtk_style_new(); |
| 105 | even_style = gtk_style_new(); |
| 106 | odd_style = gtk_style_new(); |
| 107 | active_style = gtk_style_new(); |
| 108 | search_style = gtk_style_new(); |
| 109 | tool_style = gtk_style_new(); |
| 110 | drag_style = gtk_style_new(); |
| 111 | |
| 112 | /* Style defaults */ |
| 113 | |
| 114 | /* Layouts are basically black on white */ |
| 115 | layout_style->bg[GTK_STATE_NORMAL] = layout_style->white; |
| 116 | layout_style->fg[GTK_STATE_NORMAL] = layout_style->black; |
| 117 | |
| 118 | /* Title row is inverted */ |
| 119 | title_style->bg[GTK_STATE_NORMAL] = layout_style->fg[GTK_STATE_NORMAL]; |
| 120 | title_style->fg[GTK_STATE_NORMAL] = layout_style->bg[GTK_STATE_NORMAL]; |
| 121 | |
| 122 | /* Active row is pastel green */ |
| 123 | active_style->bg[GTK_STATE_NORMAL].red = 0xE000; |
| 124 | active_style->bg[GTK_STATE_NORMAL].green = 0xFFFF; |
| 125 | active_style->bg[GTK_STATE_NORMAL].blue = 0xE000; |
| 126 | active_style->fg[GTK_STATE_NORMAL] = layout_style->fg[GTK_STATE_NORMAL]; |
| 127 | |
| 128 | /* Even rows are pastel red */ |
| 129 | even_style->bg[GTK_STATE_NORMAL].red = 0xFFFF; |
| 130 | even_style->bg[GTK_STATE_NORMAL].green = 0xEC00; |
| 131 | even_style->bg[GTK_STATE_NORMAL].blue = 0xEC00; |
| 132 | even_style->fg[GTK_STATE_NORMAL] = layout_style->fg[GTK_STATE_NORMAL]; |
| 133 | |
| 134 | /* Odd rows match the underlying layout */ |
| 135 | odd_style->bg[GTK_STATE_NORMAL] = layout_style->bg[GTK_STATE_NORMAL]; |
| 136 | odd_style->fg[GTK_STATE_NORMAL] = layout_style->fg[GTK_STATE_NORMAL]; |
| 137 | |
| 138 | /* Search results have a yellow background */ |
| 139 | search_style->fg[GTK_STATE_NORMAL] = layout_style->fg[GTK_STATE_NORMAL]; |
| 140 | search_style->bg[GTK_STATE_NORMAL].red = 0xFFFF; |
| 141 | search_style->bg[GTK_STATE_NORMAL].green = 0xFFFF; |
| 142 | search_style->bg[GTK_STATE_NORMAL].blue = 0x0000; |
| 143 | |
| 144 | /* Drag targets are grey */ |
| 145 | drag_style->bg[GTK_STATE_NORMAL].red = 0x6666; |
| 146 | drag_style->bg[GTK_STATE_NORMAL].green = 0x6666; |
| 147 | drag_style->bg[GTK_STATE_NORMAL].blue = 0x6666; |
| 148 | |
| 149 | /* Tools we leave at GTK+ defaults */ |
| 150 | } |
| 151 | |
| 152 | void save_settings(void) { |
| 153 | char *dir, *path, *tmp; |
| 154 | FILE *fp = 0; |
| 155 | size_t n, m, c; |
| 156 | |
| 157 | byte_xasprintf(&dir, "%s/.disorder", getenv("HOME")); |
| 158 | byte_xasprintf(&path, "%s/disobedience", dir); |
| 159 | byte_xasprintf(&tmp, "%s.tmp", path); |
| 160 | mkdir(dir, 02700); /* make sure directory exists */ |
| 161 | if(!(fp = fopen(tmp, "w"))) { |
| 162 | fpopup_msg(GTK_MESSAGE_ERROR, "error opening %s: %s", |
| 163 | tmp, strerror(errno)); |
| 164 | goto done; |
| 165 | } |
| 166 | if(fprintf(fp, |
| 167 | "# automatically generated!\n\n") < 0) |
| 168 | goto write_error; |
| 169 | for(n = 0; n < NSTYLES; ++n) |
| 170 | for(c = 0; c < NCOLORS; ++c) |
| 171 | for(m = 0; m < NSTATES; ++m) { |
| 172 | const GdkColor *color = (GdkColor *)((char *)styles[n].style + colors[c].offset) + m; |
| 173 | if(fprintf(fp, "color %8s %12s %s 0x%04x 0x%04x 0x%04x\n", |
| 174 | styles[n].name, states[m], colors[c].name, |
| 175 | color->red, |
| 176 | color->green, |
| 177 | color->blue) < 0) |
| 178 | goto write_error; |
| 179 | } |
| 180 | if(fprintf(fp, "browser %s\n", browser) < 0) |
| 181 | goto write_error; |
| 182 | if(fclose(fp) < 0) { |
| 183 | fp = 0; |
| 184 | write_error: |
| 185 | fpopup_msg(GTK_MESSAGE_ERROR, "error writing to %s: %s", |
| 186 | tmp, strerror(errno)); |
| 187 | goto done; |
| 188 | } |
| 189 | fp = 0; |
| 190 | if(rename(tmp, path) < 0) |
| 191 | fpopup_msg(GTK_MESSAGE_ERROR, "error renaming %s to %s: %s", |
| 192 | tmp, path, strerror(errno)); |
| 193 | done: |
| 194 | if(fp) |
| 195 | fclose(fp); |
| 196 | } |
| 197 | |
| 198 | static inline unsigned clamp(unsigned n) { |
| 199 | return n > 0xFFFF ? 0xFFFF : n; |
| 200 | } |
| 201 | |
| 202 | void load_settings(void) { |
| 203 | char *path, *line; |
| 204 | FILE *fp; |
| 205 | char **vec; |
| 206 | int nvec; |
| 207 | size_t n, m, c; |
| 208 | |
| 209 | byte_xasprintf(&path, "%s/.disorder/disobedience", getenv("HOME")); |
| 210 | if(!(fp = fopen(path, "r"))) { |
| 211 | if(errno != ENOENT) |
| 212 | fpopup_msg(GTK_MESSAGE_ERROR, "error opening %s: %s", |
| 213 | path, strerror(errno)); |
| 214 | } else { |
| 215 | while(!inputline(path, fp, &line, '\n')) { |
| 216 | if(!(vec = split(line, &nvec, SPLIT_COMMENTS|SPLIT_QUOTES, 0, 0)) |
| 217 | || !nvec) |
| 218 | continue; |
| 219 | if(!strcmp(vec[0], "color")) { |
| 220 | GdkColor *color; |
| 221 | if(nvec != 7) { |
| 222 | error(0, "%s: malformed '%s' command", path, vec[0]); |
| 223 | continue; |
| 224 | } |
| 225 | for(n = 0; n < NSTYLES && strcmp(styles[n].name, vec[1]); ++n) |
| 226 | ; |
| 227 | if(n >= NSTYLES) { |
| 228 | error(0, "%s: unknown style '%s'", path, vec[1]); |
| 229 | continue; |
| 230 | } |
| 231 | for(m = 0; m < NSTATES && strcmp(states[m], vec[2]); ++m) |
| 232 | ; |
| 233 | if(m >= NSTATES) { |
| 234 | error(0, "%s: unknown state '%s'", path, vec[2]); |
| 235 | continue; |
| 236 | } |
| 237 | for(c = 0; c < NCOLORS && strcmp(colors[c].name, vec[3]); ++c) |
| 238 | ; |
| 239 | if(c >= NCOLORS) { |
| 240 | error(0, "%s: unknown color '%s'", path, vec[3]); |
| 241 | continue; |
| 242 | } |
| 243 | color = (GdkColor *)((char *)styles[n].style + colors[c].offset) + m; |
| 244 | color->red = strtoul(vec[4], 0, 0); |
| 245 | color->green = strtoul(vec[5], 0, 0); |
| 246 | color->blue = strtoul(vec[6], 0, 0); |
| 247 | } else if(!strcmp(vec[0], "browser")) { |
| 248 | if(nvec != 2) { |
| 249 | error(0, "%s: malformed '%s' command", path, vec[0]); |
| 250 | continue; |
| 251 | } |
| 252 | browser = vec[1]; |
| 253 | } else |
| 254 | /* mention errors but otherwise ignore them */ |
| 255 | error(0, "%s: unknown command '%s'", path, vec[0]); |
| 256 | } |
| 257 | if(ferror(fp)) { |
| 258 | fpopup_msg(GTK_MESSAGE_ERROR, "error reading %s: %s", |
| 259 | path, strerror(errno)); |
| 260 | fclose(fp); |
| 261 | } |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | /** @brief Recursively set tool widget colors |
| 266 | * |
| 267 | * This is currently unused; the idea was to allow for configurability without |
| 268 | * allowing GTK+ to override our use of color, but things seem generally better |
| 269 | * without this particular call. |
| 270 | */ |
| 271 | void set_tool_colors(GtkWidget attribute((unused)) *w) { |
| 272 | } |
| 273 | |
| 274 | /** @brief Pop up a settings editor widget */ |
| 275 | void popup_settings(void) { |
| 276 | static GtkWidget *settings_window; |
| 277 | GtkWidget *table; |
| 278 | unsigned row, col; |
| 279 | |
| 280 | if(settings_window) { |
| 281 | gtk_window_present(GTK_WINDOW(settings_window)); |
| 282 | return; |
| 283 | } |
| 284 | /* Create the window */ |
| 285 | settings_window = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
| 286 | gtk_widget_set_style(settings_window, tool_style); |
| 287 | gtk_window_set_title(GTK_WINDOW(settings_window), "Disobedience Settings"); |
| 288 | /* Clear the pointer to the window widget when it is closed */ |
| 289 | g_signal_connect(settings_window, "destroy", |
| 290 | G_CALLBACK(gtk_widget_destroyed), &settings_window); |
| 291 | |
| 292 | /* The color settings live in a big table */ |
| 293 | table = gtk_table_new(2 * NSTYLES + 1/*rows */, NSTATES + 1/*cols*/, |
| 294 | TRUE/*homogeneous*/); |
| 295 | /* Titles */ |
| 296 | for(row = 0; row < 2 * NSTYLES; ++row) { |
| 297 | char *legend; |
| 298 | |
| 299 | byte_xasprintf(&legend, "%s %s", styles[row / 2].name, |
| 300 | row % 2 ? "background" : "foreground"); |
| 301 | gtk_table_attach(GTK_TABLE(table), |
| 302 | gtk_label_new(legend), |
| 303 | 0, 1, |
| 304 | row + 1, row + 2, |
| 305 | GTK_FILL, GTK_FILL, |
| 306 | 1, 1); |
| 307 | } |
| 308 | for(col = 0; col < NSTATES; ++col) { |
| 309 | gtk_table_attach(GTK_TABLE(table), |
| 310 | gtk_label_new(states[col]), |
| 311 | col + 1, col + 2, |
| 312 | 0, 1, |
| 313 | GTK_FILL, GTK_FILL, |
| 314 | 1, 1); |
| 315 | } |
| 316 | /* The actual colors */ |
| 317 | for(row = 0; row < 2 * NSTYLES; ++row) { |
| 318 | for(col = 0; col < NSTATES; ++col) { |
| 319 | GdkColor *const c = &(row % 2 |
| 320 | ? (**styles[row / 2].style).bg |
| 321 | : (**styles[row / 2].style).fg)[col]; |
| 322 | gtk_table_attach(GTK_TABLE(table), |
| 323 | gtk_color_button_new_with_color(c), |
| 324 | col + 1, col + 2, |
| 325 | row + 1, row + 2, |
| 326 | GTK_FILL, GTK_FILL, |
| 327 | 1, 1); |
| 328 | } |
| 329 | } |
| 330 | gtk_container_add(GTK_CONTAINER(settings_window), frame_widget(table, NULL)); |
| 331 | gtk_widget_show_all(settings_window); |
| 332 | /* TODO: save settings |
| 333 | TODO: web browser |
| 334 | TODO: impose settings when they are set |
| 335 | */ |
| 336 | } |
| 337 | |
| 338 | /* |
| 339 | Local Variables: |
| 340 | c-basic-offset:2 |
| 341 | comment-column:40 |
| 342 | fill-column:79 |
| 343 | indent-tabs-mode:nil |
| 344 | End: |
| 345 | */ |