src/pref_theme.cpp

   1 /*
   2   Copyright (c) 2006 Paolo Capriotti <p.capriotti@gmail.com>
   3             (c) 2006 Maurizio Monge <maurizio.monge@kdemail.net>
   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 2 of the License, or
   8   (at your option) any later version.
   9 // */
  10
  11 #include <QDir>
  12 #include <QFileInfo>
  13 #include <QStringList>
  14 #include <QListWidgetItem>
  15 #include <KDebug>
  16 #include <KStandardDirs>
  17
  18 #include "foreach.h"
  19 #include "mastersettings.h"
  20 #include "luaapi/loader.h"
  21 #include "variants.h"
  22 #include "tagua.h"
  23 #include "pref_theme.h"
  24
  25
  26 PrefTheme::ThemeInfoList PrefTheme::to_theme_info_list(const QStringList& files, const Settings& s) {
  27   //kDebug() << "about to examine " << files.size() << " desktop files";
  28   std::map<QString, ThemeInfo> cached_info;
  29
  30   SettingArray themes = s.group("themes").array("theme");
  31   foreach (Settings s_theme, themes) {
  32     ThemeInfo info = ThemeInfo::fromSettings(s_theme);
  33     cached_info[info.desktopFile] = info;
  34   }
  35
  36   ThemeInfoList all_themes;
  37   bool updated = false;
  38
  39   for(int i = 0; i < files.size(); i++) {
  40     QFileInfo file_info(files[i]);
  41     std::map<QString, ThemeInfo>::iterator it = cached_info.find(files[i]);
  42
  43     if (it != cached_info.end()
  44         && file_info.exists()
  45         && it->second.last_modified == file_info.lastModified() ) {
  46       all_themes << it->second;
  47       cached_info.erase(it);
  48     }
  49     else {
  50       updated = true;
  51
  52       ThemeInfo theme_info = ThemeInfo::fromDesktopFile(files[i]);
  53       all_themes << theme_info;
  54
  55       if (theme_info.name.isEmpty()) {
  56         kError() << "No name property in" << files[i];
  57       }
  58     }
  59   }
  60
  61   if(!cached_info.empty())
  62     updated = true;
  63
  64   /* rewrite the cached configuration */
  65   if(updated) {
  66     SettingArray themes = s.group("themes").newArray("theme");
  67
  68     for (int i = 0; i < all_themes.size(); i++) {
  69       Settings s_theme = themes.append();
  70       all_themes[i].save(s_theme);
  71     }
  72   }
  73
  74   return all_themes;
  75 }
  76
  77
  78 OptList PrefTheme::get_file_options(const QString& f, bool reload_defaults) {
  79   //kDebug() << "get file options for " << f;
  80
  81   if(!reload_defaults) {
  82     std::map<QString, OptList>::iterator it = m_new_theme_options.find(f);
  83
  84     if(it != m_new_theme_options.end())
  85       return it->second;
  86   }
  87
  88   LuaApi::Loader lua_context;
  89   lua_context.runFile(f);
  90
  91   if(lua_context.error()) {
  92     kError() << lua_context.errorString();
  93     lua_context.clearError();
  94
  95     m_new_theme_options[f] = OptList();
  96     return OptList();
  97   }
  98
  99   OptList o = lua_context.getValue<OptList>("options", 0, NULL, true);
 100   if(lua_context.error()) {
 101     kError() << lua_context.errorString();
 102     lua_context.clearError();
 103   }
 104
 105   if(!reload_defaults) {
 106     SettingMap<QString> s_lua = settings().group("lua-settings").map<QString>("entry", "file-name");
 107     Settings entry = s_lua.insert(f);
 108     options_list_load_from_settings(o, entry.group("options"));
 109
 110     m_new_theme_options[f] = o;
 111   }
 112   return o;
 113 }
 114
 115
 116 int PrefTheme::theme_ok_for_variant(const ThemeInfo& theme_info, const QString& variant_name) {
 117   if(theme_info.variants.contains(variant_name+"[default]", Qt::CaseInsensitive))
 118     return 4;
 119   if(theme_info.variants.contains(variant_name, Qt::CaseInsensitive))
 120     return 3;
 121   if(theme_info.variants.contains("any[default]", Qt::CaseInsensitive))
 122     return 2;
 123   if(theme_info.variants.contains("any", Qt::CaseInsensitive))
 124     return 1;
 125   return 0;
 126 }
 127
 128
 129 PrefTheme::PrefTheme(const QString& currentVariant, QWidget *parent)
 130 : QWidget(parent) {
 131   setupUi(this);
 132
 133   Category *c;
 134
 135   c = new Category(NULL, this);
 136   m_categories["pieces"] = c;
 137   tabWidget->addTab(c, "&Pieces");
 138
 139   c = new Category(NULL, this);
 140   m_categories["squares"] = c;
 141   tabWidget->addTab(c, "&Squares");
 142
 143   c = new Category(NULL, this);
 144   m_categories["controls"] = c;
 145   tabWidget->addTab(c, "&Controls");
 146
 147   MasterSettings cached_theme_info("tagua_config_cache.xml");
 148   connect(comboVariant, SIGNAL(currentIndexChanged(int)), this, SLOT(variantChanged()));
 149
 150   for(CategoryMap::iterator cit = m_categories.begin(); cit != m_categories.end(); ++cit) {
 151     Category* c = cit->second;
 152
 153     c->m_list->setSelectionMode(QAbstractItemView::SingleSelection);
 154     connect(c->m_list, SIGNAL(itemSelectionChanged()), c, SLOT(themeChanged()));
 155     connect(c->m_check, SIGNAL(toggled(bool)), c, SLOT(themeChecked(bool)));
 156     c->m_opt_layout = new QHBoxLayout(c->m_widget);
 157     c->m_opt_layout->setMargin(0);
 158
 159     c->m_themes = to_theme_info_list(
 160       KGlobal::dirs()->findAllResources("appdata",
 161                                         "themes/"+cit->first+"/*.desktop",
 162                                         KStandardDirs::Recursive),
 163       cached_theme_info.group(cit->first)
 164     );
 165
 166     //kDebug() << "loaded " << c->m_themes.size() << " themes";
 167   }
 168
 169   QStringList all = Variants::instance().all();
 170   int index = 0;
 171   int current = -1;
 172   foreach (QString variant, all) {
 173     if (variant == currentVariant) {
 174       current = index;
 175     }
 176     comboVariant->addItem(variant, QVariant(variant));
 177     index++;
 178   }
 179
 180   if (current != -1)
 181     comboVariant->setCurrentIndex(current);
 182
 183   variantChanged();
 184 }
 185
 186 PrefTheme::~PrefTheme() {
 187
 188 }
 189
 190 void PrefTheme::apply() {
 191   SettingMap<QString> variants = settings().group("variants").map<QString>("variant", "name");
 192
 193   for(CategoryMap::iterator cit = m_categories.begin(); cit != m_categories.end(); ++cit) {
 194     Category* c = cit->second;
 195
 196     for(std::map<QString, QString>::iterator it = c->m_new_themes.begin();
 197                                               it != c->m_new_themes.end(); ++it) {
 198       Settings var = variants.insert(it->first);
 199       var[cit->first+"-theme"] = it->second;
 200     }
 201     for(std::map<QString, bool>::iterator it = c->m_new_use_def.begin();
 202                                               it != c->m_new_use_def.end(); ++it) {
 203       Settings var = variants.insert(it->first);
 204       var[cit->first+"-use-def"] = it->second;
 205     }
 206   }
 207
 208   for(std::map<QString, OptList>::iterator it = m_new_theme_options.begin();
 209           it != m_new_theme_options.end(); ++it) {
 210     SettingMap<QString> s_lua = settings().group("lua-settings").map<QString>("entry", "file-name");
 211     Settings entry = s_lua.insert(it->first);
 212     options_list_save_to_settings(it->second, entry.group("options"));
 213   }
 214 }
 215
 216 void PrefTheme::update_list_view(QListWidget* list, const ThemeInfoList& themes,
 217                                     QString variant_name, QString settings_theme) {
 218   list->clear();
 219
 220   int selected_ok = 0;
 221   QListWidgetItem *item_to_select = NULL;
 222
 223   for (int i = 0; i < themes.size(); i++) {
 224     int ok = theme_ok_for_variant(themes[i], variant_name);
 225     if (!ok)
 226       continue;
 227
 228     ok = (themes[i].desktopFile == settings_theme) ? 5 : ok;
 229     QListWidgetItem *list_item = new QListWidgetItem(themes[i].name, list);
 230
 231     list_item->setData(Qt::UserRole, i);
 232     if(ok > selected_ok) {
 233       item_to_select = list_item;
 234       selected_ok = ok;
 235     }
 236   }
 237
 238   if(item_to_select)
 239     list->setItemSelected(item_to_select, true);
 240 }
 241
 242 void PrefTheme::variantChanged() {
 243   QString category = comboVariant->itemData(comboVariant->currentIndex()).toString();
 244   VariantFactory* vi = Variants::instance().getFactory(category);
 245
 246   if (!vi) {
 247     for (CategoryMap::iterator cit = m_categories.begin(); cit != m_categories.end(); ++cit) {
 248       Category* c = cit->second;
 249
 250       c->m_check->hide();
 251       c->m_list->clear();
 252       c->m_list->setEnabled(false);
 253       c->m_label->setText(QString());
 254       c->m_label->setEnabled(false);
 255     }
 256
 257     return;
 258   }
 259
 260   QString variant_name = vi->name();
 261   QString variant_proxy = vi->themeProxy();
 262   SettingMap<QString> variants = settings().group("variants").map<QString>("variant", "name");
 263   Settings var = variants.insert(variant_name);
 264   bool check_proxy = variant_name != variant_proxy;
 265
 266   for(CategoryMap::iterator cit = m_categories.begin(); cit != m_categories.end(); ++cit) {
 267     Category* c = cit->second;
 268
 269     c->m_check->setVisible(check_proxy);
 270     if(check_proxy) {
 271       bool use_def = c->m_new_use_def.count(variant_name)
 272                      ? c->m_new_use_def[variant_name]
 273                      : (var[cit->first+"-use-def"] | true).value();
 274       c->m_check->setText("Same as "+variant_proxy);
 275       c->m_check->setChecked(use_def);
 276       c->m_list->setEnabled(!use_def);
 277       c->m_label->setEnabled(!use_def);
 278     }
 279     else {
 280       c->m_list->setEnabled(true);
 281       c->m_label->setEnabled(true);
 282     }
 283
 284     QString settings_theme = c->m_new_themes.count(variant_name)
 285                               ? c->m_new_themes[variant_name]
 286                               : (var[cit->first+"-theme"] | QString()).value();
 287     update_list_view(c->m_list, c->m_themes, variant_proxy, settings_theme);
 288   }
 289 }
 290
 291 ThemeInfo PrefTheme::getBestTheme(const VariantPtr& vi, const QString& category) {
 292   QString tag = category + "-theme";
 293   QString deftag = category + "-use-def";
 294   QString variant_name = vi->name();
 295   QString variant_proxy_name = vi->themeProxy();
 296   SettingMap<QString> variants = settings().group("variants").map<QString>("variant", "name");
 297   if (variant_name != vi->themeProxy() &&
 298       (variants.insert(variant_name)[deftag] | true) )
 299     variant_name = vi->themeProxy();
 300
 301   Settings var_settings = variants.insert(variant_name);
 302   if (var_settings[tag] && QFile::exists(var_settings[tag].value<QString>()) ) {
 303
 304     // there is a theme in the settings, so pick this
 305     ThemeInfo res = ThemeInfo::fromDesktopFile(var_settings[tag].value<QString>());
 306     if(theme_ok_for_variant(res, variant_proxy_name))
 307       return res;
 308   }
 309
 310   MasterSettings cached_theme_info("tagua_config_cache.xml");
 311   KStandardDirs* std_dirs = KGlobal::dirs();
 312   ThemeInfoList themes = to_theme_info_list(std_dirs->findAllResources("appdata",
 313                                                                   "themes/" + category + "/*.desktop",
 314                                                                   KStandardDirs::Recursive ),
 315                                             cached_theme_info.group(category));
 316
 317   int best = 0;
 318   ThemeInfo* retv = 0;
 319   for(int i = 0; i < themes.size(); i++) {
 320     int ok = theme_ok_for_variant(themes[i], variant_proxy_name);
 321     if (!ok)
 322       continue;
 323
 324     if (ok > best) {
 325       retv = &themes[i];
 326       best = ok;
 327     }
 328   }
 329
 330
 331   if (retv && *retv) {
 332     var_settings[tag] = retv->desktopFile;
 333   }
 334
 335   return retv ? *retv : ThemeInfo();
 336 }
 337
 338 PrefThemeCategory::PrefThemeCategory(QWidget* parent, PrefTheme* owner)
 339   : QWidget(parent)
 340   , m_parent(owner)
 341   , m_opt_layout(NULL)
 342   , m_opt_widget(NULL) {
 343   setupUi(this);
 344   m_reset = new QAction(KIcon("edit-clear"), i18n("&Reset to Default"), this);
 345   m_reset->setShortcut(Qt::CTRL+Qt::Key_Z);
 346   connect(m_reset, SIGNAL(triggered()), this, SLOT(reset()));
 347   m_resetButton->setDefaultAction(m_reset);
 348   m_resetButton->setToolButtonStyle(Qt::ToolButtonIconOnly);
 349 }
 350
 351 void PrefThemeCategory::reset() {
 352   if(!m_opt_widget)
 353     return;
 354
 355   QList<QListWidgetItem *> l = m_list->selectedItems();
 356   if(l.isEmpty())
 357     return;
 358
 359   int i = l[0]->data(Qt::UserRole).toInt();
 360   if (i >= 0 && i < m_themes.size()) {
 361     OptList ol = m_parent->get_file_options(m_themes[i].file_name, true);
 362     qobject_cast<OptionWidget*>(m_opt_widget)->setValues(ol);
 363   }
 364 }
 365
 366 void PrefThemeCategory::themeChanged() {
 367   QList<QListWidgetItem *> l = m_list->selectedItems();
 368   if(!l.isEmpty()) {
 369     int i = l[0]->data(Qt::UserRole).toInt();
 370     if(i>=0 && i<m_themes.size()) {
 371       m_label->setText(m_themes[i].description);
 372
 373       QString c = m_parent->comboVariant->itemData(m_parent->comboVariant->currentIndex()).toString();
 374       VariantFactory* vi = Variants::instance().getFactory(c);
 375       if(vi)
 376         m_new_themes[vi->name()] = m_themes[i].desktopFile;
 377
 378       if(m_opt_widget) {
 379         delete m_opt_widget;
 380         m_opt_widget = NULL;
 381       }
 382       OptList ol = m_parent->get_file_options(m_themes[i].file_name);
 383       if (ol.size() != 0 && m_list->isEnabled()) {
 384         m_opt_widget = new OptionWidget(ol, m_widget);
 385         m_opt_layout->addWidget(m_opt_widget);
 386         m_reset->setEnabled(true);
 387       }
 388       else
 389         m_reset->setEnabled(false);
 390       return;
 391     }
 392   }
 393   m_label->setText(QString());
 394 }
 395
 396 void PrefThemeCategory::themeChecked(bool ck) {
 397   m_list->setEnabled(!ck);
 398   m_label->setEnabled(!ck);
 399
 400   QString c = m_parent->comboVariant->itemData(m_parent->comboVariant->currentIndex()).toString();
 401   VariantFactory* vi = Variants::instance().getFactory(c);
 402   if (vi)
 403     m_new_use_def[vi->name()] = ck;
 404   themeChanged();
 405 }
 406