// $Id: plugmngr.h 1282 2006-06-09 09:46:49Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are 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. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // // This is the header file for the main plug-in manager code. #ifndef INC_PLUGINMANAGER #define INC_PLUGINMANAGER //#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "listitem.h" - in camtypes.h [AUTOMATICALLY REMOVED] #include "plugin.h" #include "plugop.h" class Progress; class MenuItem; #define OPTOKEN_PLUGINS_MENU _T("PlugInsMenu") #define OPTOKEN_PLUGINS_MANAGER _T("PlugInsManager") #define OPTOKEN_PLUGINS_PARSING _T("PlugInsParsing") #define OPTOKEN_PLUGINS_PLUGINSMNGR _T("PlugInsPluginManager") #define PLUGIN_UNDO_SIG "UNDO:" #define OPTOKEN_PLUGINS_UNDO_MENU _T("PlugInsUndoMenu") class PlugInManager; class MenuItem; /************************************************************************************** > class PlugInHandler : public ListItem Author: Neville_Humphrys (Xara Group Ltd) Created: 9/12/96 Purpose: Provides specific characteristics of a type of plug-in. This includes the type of file which the plug-in in usually stored in. This provides the basis of which a handler is derived from. **************************************************************************************/ class PlugInHandler : public ListItem { // Declare the class for memory tracking CC_DECLARE_DYNAMIC(PlugInHandler); public: PlugInHandler(); ~PlugInHandler(); virtual BOOL Init() = 0; public: // Useful helper functions virtual BOOL AddFixedPlugIns(); // Add a plug-in to the list in the plug-in manager virtual BOOL AddPlugIn(PlugInItem * pPlugIn, CCRuntimeClass* pClass = CC_RUNTIME_CLASS(PlugInOp), pfnGetState gs = PlugInOp::GetState); // go and parse the specified plug-in virtual BOOL ParsePlugIn(const PathName& Path, const INT32 PathID) = 0; // go and add in the any main menu items that this handler requires virtual BOOL CreateMainMenuItems(PlugInManager * pManager, MenuItem * pRootMenu, BOOL AddSeparator = FALSE); // a handler is asked whether it is going to add menu items so that the manager // can decide whether to ask the previous handler to add a separator to the end // of its added menus // Need to override this if the above function is overriden virtual BOOL GoingToAddMainMenuItems() { return FALSE; } public: // define this handler's unique characteristics // return a string describing a unique identifier for the plug-ins this handler is interested in virtual String_32 GetUniqueID() const = 0; // return a unique type for this kind of plug-in virtual TypeOfPlugIn GetTypeOfPlugIn() const = 0; // return a string describing what filetypes the plug-in handler is interested in virtual String_32 GetFileTypes() const = 0; }; /************************************************************************************** > class PlugInManager : public CCObject Author: Neville_Humphrys (Xara Group Ltd) Created: 9/12/96 Purpose: Provide general handling facilities for plug-ins in Camelot. **************************************************************************************/ class PlugInManager : public CCObject { // Declare the class for memory tracking CC_DECLARE_DYNAMIC(PlugInManager); public: PlugInManager(); ~PlugInManager(); BOOL Init(); // Allow access to the parse at start up switch BOOL GetParseAtStartUp() { return m_ParseAtStartUp; } void SetParseAtStartUp( BOOL NewState ) { m_ParseAtStartUp = NewState; } // Request a pathname using the plug-in browser form of common file dialog box BOOL GetPlugInPath( PathName* NewSearchPath ); // Add a plug-in to the list in the plug-in manager BOOL AddPlugIn(PlugInItem * pPlugIn); // Remove a plug-in from the list in the plug-in manager BOOL RemovePlugIn(PlugInItem * pPlugIn); PlugInItem * GetFirstPlugIn(); PlugInItem * GetNextPlugIn(PlugInItem * pPlugIn); BOOL AddPlugInPath( const PathName& NewSearchPath ); BOOL DeletePlugInPath( const PathName& SearchPath ); PlugInPath * GetFirstPathName(); PlugInPath * GetNextPathName(PlugInPath * pPath); PlugInItem * GetPreviousPlugIn(PlugInItem * pPlugIn); // Convert an id stored in a plug-in details record into the real pathname BOOL GetPlugInPathname(INT32 PathNameID, String_256 * pPathName); public: // Useful routines for setting up and destroying the plug-ins list // This is the one used during start up which only searches for plug-ins // if this is what the user has requested. BOOL SearchForPlugIns(); // This should be called by UI items before they try and put up say a menu // of available plug-ins. If the user has requested parsing at this point // then this is where it will happen. BOOL CheckHaveDetailsOnPlugIns(); BOOL SearchedPathsYet() { return m_SearchedPaths; } // Routines to load and save out the list of pathnames to a preferences file BOOL ReadPathNameList(); BOOL WritePathNameList(); // Function to remove all the current plug-ins settings static BOOL WipePlugInsSettings(); // Use with care. BOOL DestroyPlugInsList(); // This always searches the paths BOOL ParseAllPaths(); // Finds the main plug-ins menu item MenuItem * FindPlugInMainMenuItem(MenuItem * pMainMenu = NULL); protected: // This parses a particular pathname for plug-ins BOOL ParsePathName( const PathName& SearchPath, const INT32 PathID, INT32 * FilesCount, const Progress& PathsProgress ); // This parses a pathname for directories BOOL ParsePathNameForDirectories( const PathName& SearchPath, INT32 * FilesCount ); private: // Code for sorting plug-ins into alphabetical order BOOL SortPlugInsAlphabetically(); static INT32 __cdecl SortComparator(const void *Item1, const void *Item2); // Code for deleting all the main plug-in menu items associated with individual plug-ins BOOL DeleteMainMenuItems(); // Code for creating the main plug-in menu items associated with the individual plug-ins BOOL CreateMainMenuItems(); private: // List of the paths the user has set which we should look in for plug-ins PlugInPathList m_Paths; // The list of plug-in hanlders that Camelot understands. List m_HandlersList; // The list of plug-in items List m_PlugInsList; // Have we been initialised yet BOOL m_Initialised; // Have we searched the paths for plug-ins BOOL m_SearchedPaths; // Should we search the specified paths at start up for plug-ins? static BOOL m_ParseAtStartUp; }; #endif // INC_PLUGINMANAGER