132 lines
3.9 KiB
C++
132 lines
3.9 KiB
C++
// Resource.hh
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// Copyright (c) 2002 Henrik Kinnunen (fluxgen@linuxmail.org)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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// $Id: Resource.hh,v 1.9 2002/12/01 13:41:58 rathnor Exp $
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#ifndef RESOURCE_HH
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#define RESOURCE_HH
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#include "NotCopyable.hh"
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#include <string>
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#include <list>
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/**
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Base class for resources
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*/
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class Resource_base:private FbTk::NotCopyable
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{
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public:
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virtual ~Resource_base() { };
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/// set from string value
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virtual void setFromString(char const *strval) = 0;
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/// set default value
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virtual void setDefaultValue() = 0;
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/// get string value
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virtual std::string getString() = 0;
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/// get alternative name of this resource
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inline const std::string& altName() const { return m_altname; }
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/// get name of this resource
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inline const std::string& name() const { return m_name; }
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protected:
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Resource_base(const std::string &name, const std::string &altname):
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m_name(name), m_altname(altname)
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{ }
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private:
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std::string m_name; ///< name of this resource
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std::string m_altname; ///< alternative name
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};
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class ResourceManager;
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/**
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Real resource class
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*/
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template <typename T>
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class Resource:public Resource_base
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{
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public:
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Resource(ResourceManager &rm, T val,
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const std::string &name, const std::string &altname):
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Resource_base(name, altname),
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m_value(val), m_defaultval(val),
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m_rm(rm)
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{
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m_rm.addResource(*this); // add this to resource handler
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}
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virtual ~Resource() {
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m_rm.removeResource(*this); // remove this from resource handler
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}
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inline void setDefaultValue() { m_value = m_defaultval; }
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void setFromString(const char *strval);
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inline Resource<T>& operator = (const T& newvalue) { m_value = newvalue; return *this;}
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std::string getString();
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inline T& operator*() { return m_value; }
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inline const T& operator*() const { return m_value; }
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inline T *operator->() { return &m_value; }
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inline const T *operator->() const { return &m_value; }
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private:
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T m_value, m_defaultval;
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ResourceManager &m_rm;
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};
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class ResourceManager
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{
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public:
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typedef std::list<Resource_base *> ResourceList;
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ResourceManager() { }
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virtual ~ResourceManager() {}
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/**
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load all resouces registered to this class
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*/
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virtual bool load(const char *filename);
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/**
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save all resouces registered to this class
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*/
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virtual bool save(const char *filename, const char *mergefilename=0);
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/**
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add resource to list
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*/
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template <class T>
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void addResource(Resource<T> &r) {
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m_resourcelist.push_back(&r);
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m_resourcelist.unique();
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}
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/**
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Remove a specific resource
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*/
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template <class T>
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void removeResource(Resource<T> &r) {
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m_resourcelist.remove(&r);
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}
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protected:
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static inline void ensureXrmIsInitialize();
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private:
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static bool m_init;
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ResourceList m_resourcelist;
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};
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#endif //_RESOURCE_HH_
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