// Theme.cc for FbTk - Fluxbox ToolKit // Copyright (c) 2002 - 2006 Henrik Kinnunen (fluxgen at fluxbox dot org) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // $Id$ #include "Theme.hh" #include "XrmDatabaseHelper.hh" #include "App.hh" #include "StringUtil.hh" #include "FileUtil.hh" #include "I18n.hh" #include "Image.hh" #ifdef HAVE_CSTDIO #include <cstdio> #else #include <stdio.h> #endif #include <memory> #include <iostream> #include <algorithm> using std::cerr; using std::endl; using std::string; namespace FbTk { struct LoadThemeHelper { LoadThemeHelper():m_tm(ThemeManager::instance()) {} void operator ()(Theme *tm) { m_tm.loadTheme(*tm); } void operator ()(ThemeManager::ThemeList &tmlist) { for_each(tmlist.begin(), tmlist.end(), *this); // send reconfiguration signal to theme and listeners ThemeManager::ThemeList::iterator it = tmlist.begin(); ThemeManager::ThemeList::iterator it_end = tmlist.end(); for (; it != it_end; ++it) { (*it)->reconfigTheme(); (*it)->reconfigSig().notify(); } } ThemeManager &m_tm; }; Theme::Theme(int screen_num):m_screen_num(screen_num) { ThemeManager::instance().registerTheme(*this); } Theme::~Theme() { ThemeManager::instance().unregisterTheme(*this); } ThemeManager &ThemeManager::instance() { static ThemeManager tm; return tm; } ThemeManager::ThemeManager(): // max_screens: we initialize this later so we can set m_verbose // without having a display connection m_max_screens(-1), m_verbose(false), m_themelocation("") { } bool ThemeManager::registerTheme(Theme &tm) { if (m_max_screens < 0) { m_max_screens = ScreenCount(FbTk::App::instance()->display()); m_themes.resize(m_max_screens); } // valid screen num? if (m_max_screens < tm.screenNum() || tm.screenNum() < 0) return false; // TODO: use find and return false if it's already there // instead of unique m_themes[tm.screenNum()].push_back(&tm); m_themes[tm.screenNum()].unique(); return true; } bool ThemeManager::unregisterTheme(Theme &tm) { if (m_max_screens < tm.screenNum() || tm.screenNum() < 0) return false; m_themes[tm.screenNum()].remove(&tm); return true; } bool ThemeManager::load(const string &filename, const string &overlay_filename, int screen_num) { string location = FbTk::StringUtil::expandFilename(filename); string prefix = ""; if (FileUtil::isDirectory(filename.c_str())) { prefix = location; location.append("/theme.cfg"); if (!FileUtil::isRegularFile(location.c_str())) { location = prefix; location.append("/style.cfg"); if (!FileUtil::isRegularFile(location.c_str())) { cerr<<"Error loading theme file "<<location<<": not a regular file"<<endl; return false; } } } else { // dirname prefix = location.substr(0, location.find_last_of('/')); } if (!m_database.load(location.c_str())) return false; if (!overlay_filename.empty()) { string overlay_location = FbTk::StringUtil::expandFilename(overlay_filename); if (FileUtil::isRegularFile(overlay_location.c_str())) { XrmDatabaseHelper overlay_db; if (overlay_db.load(overlay_location.c_str())) { // after a merge the src_db is destroyed // so, make sure XrmDatabaseHelper::m_database == 0 XrmMergeDatabases(*overlay_db, &(*m_database)); *overlay_db = 0; } } } // relies on the fact that load_rc clears search paths each time if (m_themelocation != "") { Image::removeSearchPath(m_themelocation); m_themelocation.append("/pixmaps"); Image::removeSearchPath(m_themelocation); } m_themelocation = prefix; location = prefix; Image::addSearchPath(location); location.append("/pixmaps"); Image::addSearchPath(location); LoadThemeHelper load_theme_helper; // get list and go throu all the resources and load them // and then reconfigure them if (screen_num < 0 || screen_num > m_max_screens) { for_each(m_themes.begin(), m_themes.end(), load_theme_helper); } else { load_theme_helper(m_themes[screen_num]); } return true; } void ThemeManager::loadTheme(Theme &tm) { Theme::ItemList::iterator i = tm.itemList().begin(); Theme::ItemList::iterator i_end = tm.itemList().end(); for (; i != i_end; ++i) { ThemeItem_base *resource = *i; if (!loadItem(*resource)) { // try fallback resource in theme if (!tm.fallback(*resource)) { if (verbose()) { _FB_USES_NLS; cerr<<_FBTK_CONSOLETEXT(Error, ThemeItem, "Failed to read theme item", "When reading a style, couldn't read a specific item (following)")<<": "<<resource->name()<<endl; } resource->setDefaultValue(); } } } // send reconfiguration signal to theme and listeners } bool ThemeManager::loadItem(ThemeItem_base &resource) { return loadItem(resource, resource.name(), resource.altName()); } /// handles resource item loading with specific name/altname bool ThemeManager::loadItem(ThemeItem_base &resource, const string &name, const string &alt_name) { XrmValue value; char *value_type; if (XrmGetResource(*m_database, name.c_str(), alt_name.c_str(), &value_type, &value)) { resource.setFromString(value.addr); resource.load(&name, &alt_name); // load additional stuff by the ThemeItem } else return false; return true; } string ThemeManager::resourceValue(const string &name, const string &altname) { XrmValue value; char *value_type; if (*m_database != 0 && XrmGetResource(*m_database, name.c_str(), altname.c_str(), &value_type, &value) && value.addr != 0) return string(value.addr); return ""; } /* void ThemeManager::listItems() { ThemeList::iterator it = m_themelist.begin(); ThemeList::iterator it_end = m_themelist.end(); for (; it != it_end; ++it) { list<ThemeItem_base *>::iterator item = (*it)->itemList().begin(); list<ThemeItem_base *>::iterator item_end = (*it)->itemList().end(); for (; item != item_end; ++item) { if (typeid(**item) == typeid(ThemeItem<Texture>)) { cerr<<(*item)->name()<<": <texture type>"<<endl; cerr<<(*item)->name()<<".pixmap: <filename>"<<endl; cerr<<(*item)->name()<<".color: <color>"<<endl; cerr<<(*item)->name()<<".colorTo: <color>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<Color>)) { cerr<<(*item)->name()<<": <color>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<int>)) { cerr<<(*item)->name()<<": <integer>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<bool>)) { cerr<<(*item)->name()<<": <boolean>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<PixmapWithMask>)) { cerr<<(*item)->name()<<": <filename>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<string>)) { cerr<<(*item)->name()<<": <string>"<<endl; } else if (typeid(**item) == typeid(ThemeItem<Font>)) { cerr<<(*item)->name()<<": <font>"<<endl; } else { cerr<<(*item)->name()<<":"<<endl; } } } } */ }; // end namespace FbTk