mirror of https://github.com/KLayout/klayout.git
158 lines
3.5 KiB
C++
158 lines
3.5 KiB
C++
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/*
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KLayout Layout Viewer
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Copyright (C) 2006-2017 Matthias Koefferlein
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef HDR_dbLibraryManager
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#define HDR_dbLibraryManager
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#include "dbCommon.h"
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#include "dbTypes.h"
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#include "tlClassRegistry.h"
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#include "tlEvents.h"
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#include <map>
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#include <vector>
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#include <string>
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namespace db
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{
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class Library;
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/**
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* @brief The library manager
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*
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* The library manager manages a collection of libraries.
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*
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* The LibraryManager implements tl::Observed and delivers a signal when the library collection
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* changes.
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*/
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class DB_PUBLIC LibraryManager
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{
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public:
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typedef std::map <std::string, lib_id_type> lib_name_map;
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typedef lib_name_map::const_iterator iterator;
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/**
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* @brief The singleton instance
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*/
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static LibraryManager &instance ();
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/**
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* @brief Returns true, if the manager is initialized
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*/
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static bool initialized ();
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/**
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* @brief Destructor
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*/
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~LibraryManager ();
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/**
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* @brief An event indicating that libraries have changed
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*/
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tl::Event changed_event;
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/**
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* @brief Begin iterator for the name/id pairs of the libraries registered.
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*/
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iterator begin () const
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{
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return m_lib_by_name.begin ();
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}
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/**
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* @brief End iterator for the name/id pairs of the libraries registered.
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*/
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iterator end () const
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{
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return m_lib_by_name.end ();
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}
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/**
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* @brief Get the library by name
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*
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* @return A pair, the boolean is true, if the name is valid. The second member is the library id.
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*/
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std::pair<bool, lib_id_type> lib_by_name (const std::string &name) const;
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/**
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* @brief Get the library by name
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*
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* @return The pointer to the library or 0, if there is no library with that name.
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*/
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Library *lib_ptr_by_name (const std::string &name) const
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{
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std::pair<bool, lib_id_type> ll = lib_by_name (name);
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if (ll.first) {
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return lib (ll.second);
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} else {
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return 0;
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}
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}
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/**
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* @brief Register a library under the given name and associate a id
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*
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* The library will then be owned by the library manager.
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* This method is use the name property of the library (which must not be
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* changed later) and set the id of the library.
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* If a library with that name already exists, the existing library will still
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* be available by id, but not by name.
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*
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* @param library The library to register
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*/
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lib_id_type register_lib (Library *library);
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/**
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* @brief Deletes a library
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*/
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void delete_lib (Library *library);
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/**
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* @brief Get A library from an id
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*
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* Returns 0, if the library id is not valid.
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*/
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Library *lib (lib_id_type id) const;
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/**
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* @brief Clear all libraries
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*
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* This method is mainly provided for test purposes.
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*/
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void clear ();
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private:
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std::vector<Library *> m_libs;
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lib_name_map m_lib_by_name;
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LibraryManager ();
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};
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}
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#endif
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