- Your Widget Set For OpenGL

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uplugin.hpp

/***************************************************************************
    LibUFO - UI For OpenGL
    copyright         : (C) 2001-2005 by Johannes Schmidt
    email             : schmidtjf at users.sourceforge.net
                             -------------------

    file              : include/ufo/uplugin.hpp
    begin             : Wed Apr 2 2003
    $Id: uplugin.hpp,v 1.8 2005/05/21 15:17:23 schmidtjf Exp $
 ***************************************************************************/

/***************************************************************************
 *  This library is free software; you can redistribute it and/or          *
 * modify it under the terms of the GNU Lesser General Public              *
 * License as published by the Free Software Foundation; either            *
 * version 2.1 of the License, or (at your option) any later version.      *
 *                                                                         *
 * This library 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       *
 * Lesser General Public License for more details.                         *
 *                                                                         *
 * You should have received a copy of the GNU Lesser General Public        *
 * License along with this library; if not, write to the Free Software     *
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
 ***************************************************************************/

#ifndef UPLUGIN_HPP
#define UPLUGIN_HPP

#include "uobject.hpp"
#include "font/ufontinfo.hpp"

namespace ufo {

class UFontRenderer;
class ULookAndFeel;
class UVideoDriver;
class USharedLib;

class UFO_EXPORT UPluginBase : public UObject {
    UFO_DECLARE_DYNAMIC_CLASS(UPluginBase)
};

typedef UPluginBase* (*plugin_create_t)(void);
typedef void (*plugin_destroy_t)(UPluginBase*);

#define UFO_PLUGIN(category, feature, plugin) \
  extern "C" { \
    const char* ufo_plugin_category = category; \
    const char* ufo_plugin_feature  = feature; \
    UPluginBase* ufo_plugin_create() \
    { return static_cast<PluginBase*>(new plugin()); } \
    void ufo_plugin_destroy(PluginBase* c) \
    { delete static_cast<plugin*>(c); } \
  }

struct UFO_EXPORT UPluginInfo {
    USharedLib * lib;
    std::string category;
    std::string feature;
    plugin_create_t create;
    plugin_destroy_t destroy;
};


inline UFO_EXPORT bool operator==(const UPluginInfo & p1,const UPluginInfo & p2) {
    return (
        p1.lib == p2.lib &&
        p1.category == p2.category &&
        p1.feature == p2.feature &&
        p1.create == p2.create &&
        p1.destroy == p2.destroy
    );
}

class UFO_EXPORT UFontPlugin : public UPluginBase {
    UFO_DECLARE_DYNAMIC_CLASS(UFontPlugin)
public:
    virtual UFontRenderer * createFontRenderer(const UFontInfo & fontInfo) = 0;
    virtual UFontInfo queryFont(const UFontInfo & fontInfo) = 0;
    virtual std::vector<UFontInfo> listFonts(const UFontInfo & fontInfo) = 0;
    virtual std::vector<UFontInfo> listFonts() = 0;
};

class UFO_EXPORT ULAFPlugin : public UPluginBase {
    UFO_DECLARE_DYNAMIC_CLASS(ULAFPlugin)
public:
    virtual ULookAndFeel * createLookAndFeel() = 0;
};

class UFO_EXPORT UImageIOPlugin : public UPluginBase {
    UFO_DECLARE_DYNAMIC_CLASS(UImageIOPlugin)
public:
};

class UFO_EXPORT UVideoPlugin : public UPluginBase {
    UFO_DECLARE_DYNAMIC_CLASS(UVideoPlugin)
public:
    virtual bool isAvailable() = 0;
    virtual UVideoDriver * createVideoDriver() = 0;
};

} // namespace ufo

#endif // UPLUGIN_HPP

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