+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#if !defined(INCLUDED_PREFERENCEDICTIONARY_H)
-#define INCLUDED_PREFERENCEDICTIONARY_H
-
-#include "preferencesystem.h"
-#include "xml/ixml.h"
-#include "stream/stringstream.h"
-#include "generic/callback.h"
-#include "versionlib.h"
-#include <map>
-
-class PreferenceDictionary : public PreferenceSystem
-{
- class PreferenceEntry
- {
- StringImportCallback m_importer;
- StringExportCallback m_exporter;
- public:
- PreferenceEntry(const StringImportCallback& importer, const StringExportCallback& exporter)
- : m_importer(importer), m_exporter(exporter)
- {
- }
- void importString(const char* string)
- {
- m_importer(string);
- }
- void exportString(const StringImportCallback& importer)
- {
- m_exporter(importer);
- }
- };
-
- typedef std::map<CopiedString, PreferenceEntry> PreferenceEntries;
- PreferenceEntries m_preferences;
-
- typedef std::map<CopiedString, CopiedString> PreferenceCache;
- PreferenceCache m_cache;
-
-public:
- typedef PreferenceEntries::iterator iterator;
-
- iterator begin()
- {
- return m_preferences.begin();
- }
- iterator end()
- {
- return m_preferences.end();
- }
- iterator find(const char* name)
- {
- return m_preferences.find(name);
- }
-
- void registerPreference(const char* name, const StringImportCallback& importer, const StringExportCallback& exporter)
- {
- m_preferences.insert(PreferenceEntries::value_type(name, PreferenceEntry(importer, exporter)));
- PreferenceCache::iterator i = m_cache.find(name);
- if(i != m_cache.end())
- {
- importer((*i).second.c_str());
- m_cache.erase(i);
- }
- }
-
- void importPref(const char* name, const char* value)
- {
- PreferenceEntries::iterator i = m_preferences.find(name);
- if(i != m_preferences.end())
- {
- (*i).second.importString(value);
- }
- else
- {
- m_cache.erase(name);
- m_cache.insert(PreferenceCache::value_type(name, value));
- }
- }
-};
-
-inline void XMLPreference_importString(XMLImporter& importer, const char* value)
-{
- importer.write(value, string_length(value));
-}
-typedef ReferenceCaller1<XMLImporter, const char*, XMLPreference_importString> XMLPreferenceImportStringCaller;
-
-class XMLPreferenceDictionaryExporter : public XMLExporter
-{
- class XMLQPrefElement : public XMLElement
- {
- const char* m_version;
- public:
- XMLQPrefElement(const char* version) : m_version(version)
- {
- }
- const char* name() const
- {
- return "qpref";
- }
- const char* attribute(const char* name) const
- {
- if(string_equal(name, "version"))
- {
- return m_version;
- }
- return "";
- }
- void forEachAttribute(XMLAttrVisitor& visitor) const
- {
- visitor.visit("version", m_version);
- }
- };
-
- class XMLPreferenceElement : public XMLElement
- {
- const char* m_name;
- public:
- XMLPreferenceElement(const char* name)
- : m_name(name)
- {
- }
- const char* name() const
- {
- return "epair";
- }
- const char* attribute(const char* name) const
- {
- if(string_equal(name, "name"))
- return m_name;
- return "";
- }
- void forEachAttribute(XMLAttrVisitor& visitor) const
- {
- visitor.visit("name", m_name);
- }
- };
-
- typedef PreferenceDictionary PreferenceEntries;
- PreferenceEntries& m_preferences;
- const char* m_version;
-public:
- XMLPreferenceDictionaryExporter(PreferenceDictionary& preferences, const char* version)
- : m_preferences(preferences), m_version(version)
- {
- }
-
- void exportXML(XMLImporter& importer)
- {
- importer.write("\n", 1);
-
- XMLQPrefElement qpref_element(m_version);
- importer.pushElement(qpref_element);
- importer.write("\n", 1);
-
- for(PreferenceEntries::iterator i = m_preferences.begin(); i != m_preferences.end(); ++i)
- {
- XMLPreferenceElement epair_element((*i).first.c_str());
-
- importer.pushElement(epair_element);
-
- (*i).second.exportString(XMLPreferenceImportStringCaller(importer));
-
- importer.popElement(epair_element.name());
- importer.write("\n", 1);
- }
-
- importer.popElement(qpref_element.name());
- importer.write("\n", 1);
- }
-};
-
-class XMLPreferenceDictionaryImporter : public XMLImporter
-{
- struct xml_state_t
- {
- enum ETag
- {
- tag_qpref,
- tag_qpref_ignore,
- tag_epair,
- tag_epair_ignore
- };
-
- xml_state_t(ETag tag)
- : m_tag(tag)
- {
- }
-
- ETag m_tag;
- CopiedString m_name;
- StringOutputStream m_ostream;
- };
-
- typedef std::vector<xml_state_t> xml_stack_t;
- xml_stack_t m_xml_stack;
-
- typedef PreferenceDictionary PreferenceEntries;
- PreferenceEntries& m_preferences;
- Version m_version;
-public:
- XMLPreferenceDictionaryImporter(PreferenceDictionary& preferences, const char* version)
- : m_preferences(preferences), m_version(version_parse(version))
- {
- }
-
- void pushElement(const XMLElement& element)
- {
- if(m_xml_stack.empty())
- {
- if(string_equal(element.name(), "qpref"))
- {
- Version dataVersion(version_parse(element.attribute("version")));
- if(!version_compatible(m_version, dataVersion))
- {
- globalOutputStream() << "qpref import: data version " << dataVersion << " is not compatible with code version " << m_version << "\n";
- m_xml_stack.push_back(xml_state_t::tag_qpref_ignore);
- }
- else
- {
- globalOutputStream() << "qpref import: data version " << dataVersion << " is compatible with code version " << m_version << "\n";
- m_xml_stack.push_back(xml_state_t::tag_qpref);
- }
- }
- else
- {
- // not valid
- }
- }
- else
- {
- switch(m_xml_stack.back().m_tag)
- {
- case xml_state_t::tag_qpref:
- if(string_equal(element.name(), "epair"))
- {
- m_xml_stack.push_back(xml_state_t::tag_epair);
- m_xml_stack.back().m_name = element.attribute("name");
- }
- else
- {
- // not valid
- }
- break;
- case xml_state_t::tag_qpref_ignore:
- if(string_equal(element.name(), "epair"))
- {
- m_xml_stack.push_back(xml_state_t::tag_epair_ignore);
- }
- else
- {
- // not valid
- }
- break;
- case xml_state_t::tag_epair:
- case xml_state_t::tag_epair_ignore:
- // not valid
- break;
- }
- }
-
- }
- void popElement(const char* name)
- {
- if(m_xml_stack.back().m_tag == xml_state_t::tag_epair)
- {
- m_preferences.importPref(m_xml_stack.back().m_name.c_str(), m_xml_stack.back().m_ostream.c_str());
- }
- m_xml_stack.pop_back();
- }
- std::size_t write(const char* buffer, std::size_t length)
- {
- return m_xml_stack.back().m_ostream.write(buffer, length);
- }
-};
-
-#endif
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