comparison: src/Configuration.cc
src/Configuration.cc
- changeset 655
- b376645315ab
- parent 654
- a74f2ff353b8
- child 656
- 2a1c204df14d
- child 706
- d79083b9f74d
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| 654:a74f2ff353b8 | 655:b376645315ab |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2013, 2014 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 * config.cxx: Configuration management. I don't like how unsafe QSettings | |
| 20 * is so this implements a type-safer and identifer-safer wrapping system of | |
| 21 * configuration variables. QSettings is used underlyingly, this is a matter | |
| 22 * of interface. | |
| 23 */ | |
| 24 | |
| 25 #include <errno.h> | |
| 26 #include <QDir> | |
| 27 #include <QTextStream> | |
| 28 #include <QSettings> | |
| 29 #include "Main.h" | |
| 30 #include "Configuration.h" | |
| 31 #include "Misc.h" | |
| 32 #include "MainWindow.h" | |
| 33 #include "Document.h" | |
| 34 | |
| 35 #ifdef _WIN32 | |
| 36 # define EXTENSION ".ini" | |
| 37 #else | |
| 38 # define EXTENSION ".cfg" | |
| 39 #endif // _WIN32 | |
| 40 | |
| 41 Config* g_configPointers[MAX_CONFIG]; | |
| 42 static int g_cfgPointerCursor = 0; | |
| 43 static QMap<QString, Config*> g_configsByName; | |
| 44 static QList<Config*> g_configs; | |
| 45 | |
| 46 // ============================================================================= | |
| 47 // Get the QSettings object. | |
| 48 // ============================================================================= | |
| 49 static QSettings* getSettingsObject() | |
| 50 { | |
| 51 QString path = qApp->applicationDirPath() + "/" UNIXNAME EXTENSION; | |
| 52 return new QSettings (path, QSettings::IniFormat); | |
| 53 } | |
| 54 | |
| 55 Config::Config (QString name) : | |
| 56 m_name (name) {} | |
| 57 | |
| 58 // ============================================================================= | |
| 59 // Load the configuration from file | |
| 60 // ============================================================================= | |
| 61 bool Config::load() | |
| 62 { | |
| 63 QSettings* settings = getSettingsObject(); | |
| 64 print ("config::load: Loading configuration file from %1\n", settings->fileName()); | |
| 65 | |
| 66 for (Config* cfg : g_configPointers) | |
| 67 { | |
| 68 if (!cfg) | |
| 69 break; | |
| 70 | |
| 71 QVariant val = settings->value (cfg->name(), cfg->getDefaultAsVariant()); | |
| 72 cfg->loadFromVariant (val); | |
| 73 g_configsByName[cfg->name()] = cfg; | |
| 74 g_configs << cfg; | |
| 75 } | |
| 76 | |
| 77 settings->deleteLater(); | |
| 78 return true; | |
| 79 } | |
| 80 | |
| 81 // ============================================================================= | |
| 82 // | |
| 83 // Save the configuration to disk | |
| 84 // | |
| 85 bool Config::save() | |
| 86 { | |
| 87 QSettings* settings = getSettingsObject(); | |
| 88 | |
| 89 for (Config* cfg : g_configs) | |
| 90 { | |
| 91 if (!cfg->isDefault()) | |
| 92 settings->setValue (cfg->name(), cfg->toVariant()); | |
| 93 else | |
| 94 settings->remove (cfg->name()); | |
| 95 } | |
| 96 | |
| 97 settings->sync(); | |
| 98 print ("Configuration saved to %1.\n", settings->fileName()); | |
| 99 settings->deleteLater(); | |
| 100 return true; | |
| 101 } | |
| 102 | |
| 103 // ============================================================================= | |
| 104 // Reset configuration to defaults. | |
| 105 // ============================================================================= | |
| 106 void Config::reset() | |
| 107 { | |
| 108 for (Config* cfg : g_configs) | |
| 109 cfg->resetValue(); | |
| 110 } | |
| 111 | |
| 112 // ============================================================================= | |
| 113 // Where is the configuration file located at? | |
| 114 // ============================================================================= | |
| 115 QString Config::filepath (QString file) | |
| 116 { | |
| 117 return Config::dirpath() + DIRSLASH + file; | |
| 118 } | |
| 119 | |
| 120 // ============================================================================= | |
| 121 // Directory of the configuration file. | |
| 122 // ============================================================================= | |
| 123 QString Config::dirpath() | |
| 124 { | |
| 125 QSettings* cfg = getSettingsObject(); | |
| 126 return dirname (cfg->fileName()); | |
| 127 } | |
| 128 | |
| 129 // ============================================================================= | |
| 130 // We cannot just add config objects to a list or vector because that would rely | |
| 131 // on the vector's c-tor being called before the configs' c-tors. With global | |
| 132 // variables we cannot assume that, therefore we need to use a C-style array here. | |
| 133 // ============================================================================= | |
| 134 void Config::addToArray (Config* ptr) | |
| 135 { | |
| 136 if (g_cfgPointerCursor == 0) | |
| 137 memset (g_configPointers, 0, sizeof g_configPointers); | |
| 138 | |
| 139 assert (g_cfgPointerCursor < MAX_CONFIG); | |
| 140 g_configPointers[g_cfgPointerCursor++] = ptr; | |
| 141 } | |
| 142 | |
| 143 // ============================================================================= | |
| 144 // ============================================================================= | |
| 145 template<class T> T* getConfigByName (QString name, Config::Type type) | |
| 146 { | |
| 147 auto it = g_configsByName.find (name); | |
| 148 | |
| 149 if (it == g_configsByName.end()) | |
| 150 return null; | |
| 151 | |
| 152 Config* cfg = it.value(); | |
| 153 | |
| 154 if (cfg->getType() != type) | |
| 155 { | |
| 156 fprint (stderr, "type of %1 is %2, not %3\n", name, cfg->getType(), type); | |
| 157 abort(); | |
| 158 } | |
| 159 | |
| 160 return reinterpret_cast<T*> (cfg); | |
| 161 } | |
| 162 | |
| 163 // ============================================================================= | |
| 164 // ============================================================================= | |
| 165 #undef IMPLEMENT_CONFIG | |
| 166 | |
| 167 #define IMPLEMENT_CONFIG(NAME) \ | |
| 168 NAME##Config* NAME##Config::getByName (QString name) \ | |
| 169 { \ | |
| 170 return getConfigByName<NAME##Config> (name, E##NAME##Type); \ | |
| 171 } | |
| 172 | |
| 173 IMPLEMENT_CONFIG (Int) | |
| 174 IMPLEMENT_CONFIG (String) | |
| 175 IMPLEMENT_CONFIG (Bool) | |
| 176 IMPLEMENT_CONFIG (Float) | |
| 177 IMPLEMENT_CONFIG (List) | |
| 178 IMPLEMENT_CONFIG (KeySequence) | |
| 179 IMPLEMENT_CONFIG (Vertex) |
