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Diffstat (limited to 'src/include/plugins.h')
| -rw-r--r-- | src/include/plugins.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/src/include/plugins.h b/src/include/plugins.h new file mode 100644 index 0000000..c39b65e --- /dev/null +++ b/src/include/plugins.h @@ -0,0 +1,192 @@ +/*************************************************************************** + plugins.h - description + ------------------- + begin : Mon M�r 10 2003 + copyright : (C) 2003 by Martin Witte + email : [email protected] + ***************************************************************************/ + +/*************************************************************************** + * * + * 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. * + * * + ***************************************************************************/ + +///////////////////////////////////////////////////////////////////////////// + +#ifndef KRADIO_PLUGINS_INTERFACES_H +#define KRADIO_PLUGINS_INTERFACES_H + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <tdeglobal.h> + +#include "errorlog-interfaces.h" +#include <tqstring.h> +#include <tqobject.h> +#include <tqptrlist.h> + +class PluginManager; +class PluginBase; +class TQWidget; +class TDEConfig; + +typedef TQPtrList<PluginBase> PluginList; +typedef TQPtrListIterator<PluginBase> PluginIterator; + +/* PluginBase must be inherited from Interface so that a plugin can be used + in Interface::connect functions. + + PluginBase must not be inherited from TQObject, because derived classes may + be inherited e.g. from TQWidget (multiple inheritance is not possible with + OBjects). But we must be able to receive destroy messages e.g. from + configuration pages. Thus we need the special callback member + m_destroyNotifier. + + PluginBase is derived from Interface to provide connection facilities. + In case of multiple inheritance from interface classes, connect and disconnect + methods have to be reimplemented in order to call all inherited + connect/disconnect methods. + +*/ + + +class WidgetPluginBase; + +struct ConfigPageInfo +{ + ConfigPageInfo () : page(NULL) {} + ConfigPageInfo (TQWidget *p, + const TQString &in, + const TQString &ph, + const TQString &icon) + : page (p), + itemName(in), + pageHeader(ph), + iconName(icon) + {} + + TQWidget *page; + TQString itemName, + pageHeader, + iconName; +}; + +typedef ConfigPageInfo AboutPageInfo; + + +class PluginBase : public IErrorLogClient +{ +friend class PluginManager; +public : + PluginBase(const TQString &name, const TQString &description); + virtual ~PluginBase(); + + virtual TQString pluginClassName() const = 0; + + const TQString &name() const { return m_name; } + TQString &name() { return m_name; } + + const TQString &description() const { return m_description; } + + // workaround for compiler bugs + bool destructorCalled() const { return m_destructorCalled; } + + // interaction with pluginmanager +protected: + bool setManager (PluginManager *); + void unsetManager (); + bool isManagerSet () const; + +public: + + // these two methods will request a configuration page or + // plugin page from plugin manager + // they will be deleted automatically when this plugin + // is deleted, because we disconnect from pluginmanager + // and the plugin manager will delete all associated gui elements + virtual ConfigPageInfo createConfigurationPage () = 0; + virtual AboutPageInfo createAboutPage () = 0; + + // save/restore status, window position, etc... + + virtual void saveState (TDEConfig *) const = 0; + virtual void restoreState (TDEConfig *) = 0; + virtual void startPlugin(); + + virtual void aboutToQuit(); + + // + + virtual void noticeWidgetPluginShown(WidgetPluginBase *, bool /*shown*/) {} + virtual void noticePluginsChanged(const PluginList &) {} + +protected : + TQString m_name; + TQString m_description; + PluginManager *m_manager; + bool m_destructorCalled; +}; + + +#define PLUGIN_LIBRARY_FUNCTIONS(class_name, i18nName, description) \ +extern "C" void TDERadioPlugin_LoadLibrary() \ +{ \ + TDEGlobal::locale()->insertCatalogue(i18nName); \ +} \ + \ +extern "C" void TDERadioPlugin_UnloadLibrary() \ +{ \ + TDEGlobal::locale()->removeCatalogue(i18nName); \ +} \ + \ +extern "C" void TDERadioPlugin_GetAvailablePlugins(TQMap<TQString, TQString> &info) \ +{ \ + info.insert(#class_name, (description)); \ +} \ + \ +extern "C" PluginBase *TDERadioPlugin_CreatePlugin(const TQString &type, const TQString &object_name) \ +{ \ + if (type == #class_name) { \ + return new class_name(object_name); \ + } else { \ + return NULL; \ + } \ +} + + +#define PLUGIN_LIBRARY_FUNCTIONS2(class_name1, i18nName, description1, class_name2, description2) \ +extern "C" void TDERadioPlugin_LoadLibrary() \ +{ \ + TDEGlobal::locale()->insertCatalogue(i18nName); \ +} \ + \ +extern "C" void TDERadioPlugin_UnloadLibrary() \ +{ \ + TDEGlobal::locale()->removeCatalogue(i18nName); \ +} \ + \ +extern "C" void TDERadioPlugin_GetAvailablePlugins(TQMap<TQString, TQString> &info) \ +{ \ + info.insert(#class_name1, (description1)); \ + info.insert(#class_name2, (description2)); \ +} \ + \ +extern "C" PluginBase *TDERadioPlugin_CreatePlugin(const TQString &type, const TQString &object_name) \ +{ \ + if (type == #class_name1) { \ + return new class_name1(object_name); \ + } else if (type == #class_name2) { \ + return new class_name2(object_name); \ + } else { \ + return NULL; \ + } \ +} + + +#endif |