comparison: config.cpp
config.cpp
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- f1b8cb53d2a2
- parent 182
- 9374fea8f77f
- child 184
- fae3bc9ce319
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| 182:9374fea8f77f | 183:f1b8cb53d2a2 |
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| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013 Santeri Piippo | |
| 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 | |
| 19 #include <stdio.h> | |
| 20 #include <stdlib.h> | |
| 21 #include <errno.h> | |
| 22 #include <time.h> | |
| 23 #include <QDir> | |
| 24 #include "common.h" | |
| 25 #include "str.h" | |
| 26 #include "config.h" | |
| 27 | |
| 28 std::vector<config*> g_pConfigPointers; | |
| 29 | |
| 30 // ============================================================================= | |
| 31 const char* g_WeekdayNames[7] = { | |
| 32 "Sunday", | |
| 33 "Monday", | |
| 34 "Tuesday", | |
| 35 "Wednesday", | |
| 36 "Thursday", | |
| 37 "Friday", | |
| 38 "Saturday", | |
| 39 }; | |
| 40 | |
| 41 // ============================================================================= | |
| 42 static const char* g_MonthNames[12] = { | |
| 43 "Januray", | |
| 44 "February", | |
| 45 "March", | |
| 46 "April", | |
| 47 "May", | |
| 48 "June", | |
| 49 "July", | |
| 50 "August", | |
| 51 "September", | |
| 52 "October", | |
| 53 "November" | |
| 54 "December", | |
| 55 }; | |
| 56 | |
| 57 static const char* g_ConfigTypeNames[] = { | |
| 58 "None", | |
| 59 "Integer", | |
| 60 "String", | |
| 61 "Float", | |
| 62 "Boolean", | |
| 63 "Key sequence", | |
| 64 }; | |
| 65 | |
| 66 // ============================================================================= | |
| 67 // Load the configuration from file | |
| 68 bool config::load () { | |
| 69 printf ("config::load: loading configuration file.\n"); | |
| 70 | |
| 71 // Locale must be disabled for atof | |
| 72 setlocale (LC_NUMERIC, "C"); | |
| 73 | |
| 74 FILE* fp = fopen (filepath().chars(), "r"); | |
| 75 char linedata[MAX_INI_LINE]; | |
| 76 char* line; | |
| 77 size_t ln = 0; | |
| 78 | |
| 79 if (!fp) | |
| 80 return false; // can't open for reading | |
| 81 | |
| 82 // Read the values. | |
| 83 while (fgets (linedata, MAX_INI_LINE, fp)) { | |
| 84 ln++; | |
| 85 line = linedata; | |
| 86 | |
| 87 while (*line != 0 && (*line <= 32 || *line >= 127)) | |
| 88 line++; // Skip junk | |
| 89 | |
| 90 if (*line == '\0' || line[0] == '#') | |
| 91 continue; // Empty line or comment. | |
| 92 | |
| 93 // Find the equals sign. | |
| 94 char* equals = strchr (line, '='); | |
| 95 if (!equals) { | |
| 96 fprintf (stderr, "couldn't find `=` sign in entry `%s`\n", line); | |
| 97 continue; | |
| 98 } | |
| 99 | |
| 100 str entry = str (line).substr (0, equals - line); | |
| 101 | |
| 102 // Find the config entry for this. | |
| 103 config* cfg = null; | |
| 104 for (config* i : g_pConfigPointers) | |
| 105 if (entry == i->name) | |
| 106 cfg = i; | |
| 107 | |
| 108 if (!cfg) { | |
| 109 fprintf (stderr, "unknown config `%s`\n", entry.chars()); | |
| 110 continue; | |
| 111 } | |
| 112 | |
| 113 str valstring = str (line).substr (equals - line + 1, -1); | |
| 114 | |
| 115 // Trim the crap off the end | |
| 116 while (~valstring) { | |
| 117 char c = valstring[~valstring - 1]; | |
| 118 if (c <= 32 || c >= 127) | |
| 119 valstring -= 1; | |
| 120 else | |
| 121 break; | |
| 122 } | |
| 123 | |
| 124 switch (cfg->getType()) { | |
| 125 case CONFIG_int: | |
| 126 static_cast<intconfig*> (cfg)->value = atoi (valstring.chars()); | |
| 127 break; | |
| 128 | |
| 129 case CONFIG_str: | |
| 130 static_cast<strconfig*> (cfg)->value = valstring; | |
| 131 break; | |
| 132 | |
| 133 case CONFIG_float: | |
| 134 static_cast<floatconfig*> (cfg)->value = atof (valstring.chars()); | |
| 135 break; | |
| 136 | |
| 137 case CONFIG_bool: | |
| 138 { | |
| 139 bool& val = static_cast<boolconfig*> (cfg)->value; | |
| 140 | |
| 141 if (+valstring == "TRUE" || valstring == "1") | |
| 142 val = true; | |
| 143 else if (+valstring == "FALSE" || valstring == "0") | |
| 144 val = false; | |
| 145 break; | |
| 146 } | |
| 147 | |
| 148 case CONFIG_keyseq: | |
| 149 static_cast<keyseqconfig*> (cfg)->value = keyseq::fromString (valstring.chars ()); | |
| 150 break; | |
| 151 | |
| 152 default: | |
| 153 break; | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 fclose (fp); | |
| 158 return true; | |
| 159 } | |
| 160 | |
| 161 // ============================================================================= | |
| 162 // Write a given formatted string to the given file stream | |
| 163 static size_t writef (FILE* fp, const char* fmt, ...) { | |
| 164 va_list va; | |
| 165 | |
| 166 va_start (va, fmt); | |
| 167 char* buf = vdynformat (fmt, va, 256); | |
| 168 va_end (va); | |
| 169 | |
| 170 size_t len = fwrite (buf, 1, strlen (buf), fp); | |
| 171 delete[] buf; | |
| 172 | |
| 173 return len; | |
| 174 } | |
| 175 | |
| 176 // ============================================================================= | |
| 177 // Save the configuration to disk | |
| 178 bool config::save () { | |
| 179 // The function will write floats, disable the locale now so that they | |
| 180 // are written properly. | |
| 181 setlocale (LC_NUMERIC, "C"); | |
| 182 | |
| 183 // If the directory doesn't exist, create it now. | |
| 184 if (QDir (dirpath ()).exists () == nope) { | |
| 185 fprintf (stderr, "Creating config path %s...\n", dirpath().chars()); | |
| 186 if (!QDir ().mkpath (dirpath().chars())) { | |
| 187 logf (LOG_Warning, "Failed to create the directory. Configuration cannot be saved!\n"); | |
| 188 return false; // Couldn't create directory | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 FILE* fp = fopen (filepath().chars(), "w"); | |
| 193 printf ("writing cfg to %s\n", filepath().chars()); | |
| 194 | |
| 195 if (!fp) { | |
| 196 printf ("Couldn't open %s for writing\n", filepath().chars()); | |
| 197 return false; | |
| 198 } | |
| 199 | |
| 200 const time_t curtime = time (NULL); | |
| 201 const struct tm* timeinfo = localtime (&curtime); | |
| 202 const char* daysuffix = | |
| 203 (timeinfo->tm_mday % 10 == 1) ? "st" : | |
| 204 (timeinfo->tm_mday % 10 == 2) ? "nd" : | |
| 205 (timeinfo->tm_mday % 10 == 3) ? "rd" : "th"; | |
| 206 | |
| 207 writef (fp, "# Configuration file for " APPNAME "\n"); | |
| 208 writef (fp, "# Written on %s, %s %d%s %d %.2d:%.2d:%.2d\n", | |
| 209 g_WeekdayNames[timeinfo->tm_wday], g_MonthNames[timeinfo->tm_mon], | |
| 210 timeinfo->tm_mday, daysuffix, timeinfo->tm_year + 1900, | |
| 211 timeinfo->tm_hour, timeinfo->tm_min, timeinfo->tm_sec); | |
| 212 | |
| 213 for (config* cfg : g_pConfigPointers) { | |
| 214 str valstring; | |
| 215 switch (cfg->getType()) { | |
| 216 case CONFIG_int: | |
| 217 valstring.format ("%d", static_cast<intconfig*> (cfg)->value); | |
| 218 break; | |
| 219 case CONFIG_str: | |
| 220 valstring = static_cast<strconfig*> (cfg)->value; | |
| 221 break; | |
| 222 case CONFIG_float: | |
| 223 valstring.format ("%f", static_cast<floatconfig*> (cfg)->value); | |
| 224 | |
| 225 // Trim any trailing zeros | |
| 226 if (valstring.first (".") != -1) { | |
| 227 while (valstring[~valstring - 1] == '0') | |
| 228 valstring -= 1; | |
| 229 | |
| 230 // But don't trim the only one out... | |
| 231 if (valstring[~valstring - 1] == '.') | |
| 232 valstring += '0'; | |
| 233 } | |
| 234 | |
| 235 break; | |
| 236 case CONFIG_bool: | |
| 237 valstring = (static_cast<boolconfig*> (cfg)->value) ? "true" : "false"; | |
| 238 break; | |
| 239 case CONFIG_keyseq: | |
| 240 valstring = static_cast<keyseqconfig*> (cfg)->value.toString (); | |
| 241 break; | |
| 242 default: | |
| 243 break; | |
| 244 } | |
| 245 | |
| 246 const char* sDefault = (cfg->getType() != CONFIG_keyseq) ? cfg->defaultstring : | |
| 247 static_cast<keyseqconfig*> (cfg)->defval.toString ().toUtf8 ().constData (); | |
| 248 | |
| 249 // Write the entry now. | |
| 250 writef (fp, "\n# [%s] default: %s\n", g_ConfigTypeNames[cfg->getType()], sDefault); | |
| 251 writef (fp, "%s=%s\n", cfg->name, valstring.chars()); | |
| 252 } | |
| 253 | |
| 254 fclose (fp); | |
| 255 return true; | |
| 256 } | |
| 257 | |
| 258 // ============================================================================= | |
| 259 void config::reset () { | |
| 260 for (size_t i = 0; i < NUM_CONFIG; i++) | |
| 261 g_pConfigPointers[i]->resetValue (); | |
| 262 } | |
| 263 | |
| 264 // ============================================================================= | |
| 265 str config::filepath () { | |
| 266 str path; | |
| 267 path.format ("%s%s.cfg", dirpath ().chars (), | |
| 268 str (APPNAME).tolower ().chars ()); | |
| 269 return path; | |
| 270 } | |
| 271 | |
| 272 // ============================================================================= | |
| 273 str config::dirpath () { | |
| 274 return fmt ("%s/.%s/", qchars (QDir::homePath ()), | |
| 275 str (APPNAME).tolower ().chars ()); | |
| 276 } |
