File indexing completed on 2024-04-21 16:32:34

 /***************************************************************************
                           plugin.h  -  description
                              -------------------
     begin                : Sun Dec 30 2001
     copyright            : (C) 2001 by Dominik Seichter
     email                : domseichter@web.de
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *   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 PLUGIN_H
 #define PLUGIN_H
 
 #include <QPixmap>
 #include <QString>
 
 #include <KConfigGroup>
 #include <KSharedConfig>
 
 class BatchRenamer;
 class KConfigGroup;
 class PluginLoader;
 
 /** An enum to determine the correct plugin type.
  *
  *  A plugin may be of different types at a time.
  */
 enum EPluginType {
     ePluginType_Token     = 0x01, ///< A plugin that handles a token in brackets [ ]
     ePluginType_Filename  = 0x02, ///< A plugin that transforms the complete final filename
     ePluginType_File      = 0x04  ///< A plugin that changes the finally renamed file
 };
 
 /** This is the abstract interface that has to be implemented
  *  by all KRename plugins.
  */
 class Plugin
 {
 public:
     explicit Plugin(PluginLoader *loader);
     virtual ~Plugin();
 
     /**
      * Creates a help entry for the QStringList returned by help,
      * adds correct separator and brackets where necessary.
      *
      * \param token the token ([ brackets ] will be added to surround it)
      * \help help for the token
      *
      * \see help()
      */
     static QString createHelpEntry(const QString &token, const QString &help);
 
     /**
      * @returns a name of the plugin that can be displayed
      *          to the user. This name should be internationalized.
      */
     virtual const QString name() const = 0;
 
     /**
      * Determines the type of the plugin.
      * Different enum values may be or'ed together.
      *
      * @returns the type of the plugin.
      */
     virtual int type() const = 0;
 
     /**
      * @returns an icon for this plugin.
      */
     virtual const QPixmap icon() const = 0;
 
     /** Set the enabled state of a plugin
      *  so that it can be used.
      *
      *  \param b the enabled state of the plugin.
      *
      *  This has no effect if alwaysEnabled returns true
      */
     inline void setEnabled(bool b);
 
     /**
      * @returns true if this plugin is enabled.
      * Only use it if it is enabled.
      */
     inline bool isEnabled() const;
 
     /**
      * @returns true if this plugins is always enabled
      *
      * Warning: If you return true here, the user has no possibility to
      *          disable this plugin.
      */
     virtual bool alwaysEnabled() const = 0;
 
     /**
      * This function is the core of your plugin.
      *
      * It does the actual processing of a file, filename or token depending of the type
      * of your plugin.
      *
      * \see type()
      *
      * @param b the parent BatchRenamer instance calling this plugin
      * @param index the index of the current file (i.e. the first file has index 0,
      *              the second file to be renamed has index 1 ....)
      * @param filenameOrToken this parameter depends on the type of your plugin.
      *                        If type is ePluginType_File, this is the absolute path
      *                        or URL to the renamed file.
      *                        If type is ePluginType_Filename, this is the filename
      *                        (without path) as created by KRename.
      *                        If type is ePluginType_Token, this is the contents of a token
      *                        in brackets. If your plugin supports the token [example],
      *                        KRename will pass the strign "example" to your method.
      * @param eCurrentType the current type of plugin that is requested (for plugins that support more than one type)
      *
      * @returns the result of the function, depending on type().
      * @returns QString::null if this plugin has nothing to do.
      * @returns A new filename if type is ePluginType_Filename
      * @returns the value of the token if type is ePluginType_Token
      * @returns an error message or QString::null if type is ePluginType_File
      */
     virtual QString processFile(BatchRenamer *b, int index, const QString &filenameOrToken, EPluginType eCurrentType) = 0;
 
     /** Get a list of all tokens supported by this plugin.
      *
      *  If the token type != ePluginType_Token you have to return an empty list
      *
      *  @returns a list of all supported tokens. The returned strings will be treated
      *           as regular expressions to find a plugin which supports a token.
      */
     virtual const QStringList &supportedTokens() const = 0;
 
     /** Returns help descriptions for the supported tokens
      *
      *  The returned stringlist contains strings that are the tokens
      *  and the description separated by ;;
      *
      *  @returns a stringlist containing help on the supported tokens
      */
     virtual const QStringList &help() const = 0;
 
     /** Create a user interface for this plugin
      *
      *  @param parent the parent widget of this plugin
      */
     virtual void createUI(QWidget *parent) const = 0;
 
     /** Load the plugin configuration.
      *
      *  Called when plugins should load their configuration.
      *
      *  @param group config group where the configuration should be read from
      */
     virtual void loadConfig(KConfigGroup &group);
 
     /** Save the plugin configuration.
      *
      *  Called when plugins should save their configuration.
      *
      *  @param group config group where the configuration should be stored
      */
     virtual void saveConfig(KConfigGroup &group) const;
 
     /*
         virtual bool checkError() = 0;
         virtual void drawInterface( QWidget* w, QVBoxLayout* l ) = 0;
         virtual void fillStructure() { }
         virtual QString processFile( BatchRenamer* b, int i, QString token, int mode ) = 0;
         virtual void finished() { }
 
         virtual void addHelp( HelpDialogData* data );
         virtual void removeHelp(  HelpDialogData* data );
 
         virtual void clearCache();
 
         virtual const QPixmap getIcon() const;
         virtual const QStringList getKeys() const;
     */
 
 protected:
     PluginLoader *m_pluginLoader;
 
 private:
     bool m_enabled;
 };
 
 inline void Plugin::setEnabled(bool b)
 {
     m_enabled = b;
 }
 
 inline bool Plugin::isEnabled() const
 {
     return this->alwaysEnabled() || m_enabled;
 }
 
 #endif // PLUGIN_H