src/plugins/InstrumentEditorFactory.h

/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2007 - 2014 Christian Schoenebeck                       *
 *                                                                         *
 *   This program 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.                                   *
 *                                                                         *
 *   This program 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 this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef LS_INSTRUMENT_EDITOR_FACTORY_H
#define LS_INSTRUMENT_EDITOR_FACTORY_H

#include <map>
#include <vector>
#include <list>

#include "../common/Exception.h"
#include "InstrumentEditor.h"

#if defined(WIN32)
# define REGISTER_INSTRUMENT_EDITOR(PluginClass) \
    extern "C" __declspec(dllexport) void* \
    createInstrumentEditorInnerFactory() { \
        return new LinuxSampler::InstrumentEditorFactory::InnerFactoryTemplate<PluginClass>(); \
    }
#else
# define REGISTER_INSTRUMENT_EDITOR(PluginClass) \
    LinuxSampler::InstrumentEditorFactory::InnerFactoryRegistrator<PluginClass> \
    __auto_register_instrument_editor__##PluginClass;
#endif

namespace LinuxSampler {

    class InstrumentEditorFactory {
    public:
        class InnerFactory {
        public:
            virtual ~InnerFactory() {}
            virtual InstrumentEditor* Create() = 0;
            virtual void Destroy(InstrumentEditor* pEditor) = 0;
        };

        template<class PluginClass_T>
        class InnerFactoryTemplate : public InnerFactory {
        public:
            virtual InstrumentEditor* Create() {
                return new PluginClass_T();
            }

            virtual void Destroy(InstrumentEditor* pEditor)  {
                delete pEditor;
            }
        };

        template<class PluginClass_T>
        class InnerFactoryRegistrator {
        public:
            InnerFactoryRegistrator() {
                InnerFactoryTemplate<PluginClass_T>* pInnerFactory =
                    new InnerFactoryTemplate<PluginClass_T>();
                InstrumentEditor* pEditor = pInnerFactory->Create();
                if (InnerFactories.count(pEditor->Name())) {
                    pInnerFactory->Destroy(pEditor);
                    delete pInnerFactory;
                } else {
                    InnerFactories[pEditor->Name()] = pInnerFactory;
                    pInnerFactory->Destroy(pEditor);
                }
            }

           ~InnerFactoryRegistrator() {
                InnerFactoryTemplate<PluginClass_T> innerFactory;
                InstrumentEditor* pEditor = innerFactory.Create();
                if (InnerFactories.count(pEditor->Name())) {
                    InnerFactory* pZombie =
                        InnerFactories[pEditor->Name()];
                    InnerFactories.erase(pEditor->Name());
                    if (pZombie) delete pZombie;
                }
                innerFactory.Destroy(pEditor);
            }
        };

        static InstrumentEditor*   Create(String InstrumentEditorName) throw (Exception);
        static void                Destroy(InstrumentEditor* pInstrumentEditor) throw (Exception);
        static std::vector<String> AvailableEditors();
        static String              AvailableEditorsAsString();
        static std::vector<String> MatchingEditors(String sTypeName, String sTypeVersion);
        static void                LoadPlugins();
        static void                ClosePlugins();

    protected:
        static std::map<String, InnerFactory*> InnerFactories;
        static bool                            bPluginsLoaded;
        static std::list<void*>                LoadedDLLs;

    private:
        static bool LoadPlugins(String plugindir);
    };

} // namespace LinuxSampler

#endif // LS_INSTRUMENT_EDITOR_FACTORY_H
1	schoenebeck	1374	/***************************************************************************
2			* *
3	schoenebeck	2503	* Copyright (C) 2007 - 2014 Christian Schoenebeck *
4	schoenebeck	1374	* *
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			* This program is distributed in the hope that it will be useful, *
11			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
12			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13			* GNU General Public License for more details. *
14			* *
15			* You should have received a copy of the GNU General Public License *
16			* along with this program; if not, write to the Free Software *
17			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
18			* MA 02111-1307 USA *
19			***************************************************************************/
20
21			#ifndef LS_INSTRUMENT_EDITOR_FACTORY_H
22			#define LS_INSTRUMENT_EDITOR_FACTORY_H
23
24			#include <map>
25			#include <vector>
26			#include <list>
27
28			#include "../common/Exception.h"
29			#include "InstrumentEditor.h"
30
31	senoner	1481	#if defined(WIN32)
32			# define REGISTER_INSTRUMENT_EDITOR(PluginClass) \
33			extern "C" __declspec(dllexport) void* \
34			createInstrumentEditorInnerFactory() { \
35			return new LinuxSampler::InstrumentEditorFactory::InnerFactoryTemplate<PluginClass>(); \
36			}
37			#else
38			# define REGISTER_INSTRUMENT_EDITOR(PluginClass) \
39	schoenebeck	1374	LinuxSampler::InstrumentEditorFactory::InnerFactoryRegistrator<PluginClass> \
40			__auto_register_instrument_editor__##PluginClass;
41	senoner	1481	#endif
42	schoenebeck	1374
43			namespace LinuxSampler {
44
45			class InstrumentEditorFactory {
46			public:
47			class InnerFactory {
48			public:
49	schoenebeck	2503	virtual ~InnerFactory() {}
50	schoenebeck	1374	virtual InstrumentEditor* Create() = 0;
51			virtual void Destroy(InstrumentEditor* pEditor) = 0;
52			};
53
54			template<class PluginClass_T>
55			class InnerFactoryTemplate : public InnerFactory {
56			public:
57			virtual InstrumentEditor* Create() {
58			return new PluginClass_T();
59			}
60
61			virtual void Destroy(InstrumentEditor* pEditor) {
62			delete pEditor;
63			}
64			};
65
66			template<class PluginClass_T>
67			class InnerFactoryRegistrator {
68			public:
69			InnerFactoryRegistrator() {
70			InnerFactoryTemplate<PluginClass_T>* pInnerFactory =
71			new InnerFactoryTemplate<PluginClass_T>();
72			InstrumentEditor* pEditor = pInnerFactory->Create();
73			if (InnerFactories.count(pEditor->Name())) {
74			pInnerFactory->Destroy(pEditor);
75			delete pInnerFactory;
76			} else {
77			InnerFactories[pEditor->Name()] = pInnerFactory;
78			pInnerFactory->Destroy(pEditor);
79			}
80			}
81
82			~InnerFactoryRegistrator() {
83			InnerFactoryTemplate<PluginClass_T> innerFactory;
84			InstrumentEditor* pEditor = innerFactory.Create();
85			if (InnerFactories.count(pEditor->Name())) {
86			InnerFactory* pZombie =
87			InnerFactories[pEditor->Name()];
88			InnerFactories.erase(pEditor->Name());
89			if (pZombie) delete pZombie;
90			}
91			innerFactory.Destroy(pEditor);
92			}
93			};
94
95			static InstrumentEditor* Create(String InstrumentEditorName) throw (Exception);
96			static void Destroy(InstrumentEditor* pInstrumentEditor) throw (Exception);
97			static std::vector<String> AvailableEditors();
98			static String AvailableEditorsAsString();
99			static std::vector<String> MatchingEditors(String sTypeName, String sTypeVersion);
100			static void LoadPlugins();
101			static void ClosePlugins();
102
103			protected:
104			static std::map<String, InnerFactory*> InnerFactories;
105			static bool bPluginsLoaded;
106			static std::list<void*> LoadedDLLs;
107	persson	1897
108			private:
109			static bool LoadPlugins(String plugindir);
110	schoenebeck	1374	};
111
112			} // namespace LinuxSampler
113
114			#endif // LS_INSTRUMENT_EDITOR_FACTORY_H