// $Id: layermgr.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. You should have received a copy of the GNU General Public License along with Xara LX (see the file GPL in the root directory of the distribution); if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ADDITIONAL RIGHTS ----------------- Conditional upon your continuing compliance with the GNU General Public License described above, Xara Group Ltd grants to you certain additional rights. The additional rights are to use, modify, and distribute the software together with the wxWidgets library, the wxXtra library, and the "CDraw" library and any other such library that any version of Xara LX relased by Xara Group Ltd requires in order to compile and execute, including the static linking of that library to XaraLX. In the case of the "CDraw" library, you may satisfy obligation under the GNU General Public License to provide source code by providing a binary copy of the library concerned and a copy of the license accompanying it. Nothing in this section restricts any of the rights you have under the GNU General Public License. SCOPE OF LICENSE ---------------- This license applies to this program (XaraLX) and its constituent source files only, and does not necessarily apply to other Xara products which may in part share the same code base, and are subject to their own licensing terms. This license does not apply to files in the wxXtra directory, which are built into a separate library, and are subject to the wxWindows license contained within that directory in the file "WXXTRA-LICENSE". This license does not apply to the binary libraries (if any) within the "libs" directory, which are subject to a separate license contained within that directory in the file "LIBS-LICENSE". ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS ---------------------------------------------- Subject to the terms of the GNU Public License (see above), you are free to do whatever you like with your modifications. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ /* */ /* Declaration of the following classes LyrDetails LayerManager OpLayerChange */ #ifndef INC_LAYERMGR #define INC_LAYERMGR // Include files #include "layer.h" //#include "listitem.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "undoop.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "selop.h" - in camtypes.h [AUTOMATICALLY REMOVED] #define OPTOKEN_LYRCHNG _T("LayerChange") // Optoken for the layer change operation #define OPTOKEN_MOVE_SEL_TO_ACTIVE_LAYER _T("MoveSelToActiveLayer") class String_256; /******************************************************************************************** > class LyrDetails: public ListItem Author: Simon_Maneggio (Xara Group Ltd) Created: 4/1/94 Purpose: LyrDetails objects are stored in a list within the LayerManager. They record changes made to a layer. SeeAlso: LayerManager ********************************************************************************************/ class LyrDetails: public ListItem { CC_DECLARE_MEMDUMP(LyrDetails); public: LyrDetails(); // Constructor Layer *m_pLayer; // A pointer to the Layer that the LyrDetails record describes. // NULL if the layer is New LayerStatus Status; // The LayerStatus structure contains all the layer details which the // user can change BOOL New; // Flag indicating if the layer is new. i.e. it does not exist in the // Camelot tree. BOOL Deleted; // Flag indicating if the layer has been deleted }; /******************************************************************************************** > class LayerManager: public CCObject Author: Simon_Maneggio (Xara Group Ltd) Created: 7/1/94 Purpose: The LayerManager is used to make changes to layers in the document tree. It holds a pointer to a current spread, and a list of layer details for the current spread (LyrDetLst). The layerDlg and InfoBar make changes to layers in the current spread indirectly by changing the LyrDetList. Layer changes are deferred until the CommitLayerChanges() method is called. Changes made to the LyrDetList can also be cancelled by calling the CancelLayerChanges() method. SeeAlso: LyrDetails SeeAlso: LayerDlg SeeAlso: OpLayerChange ********************************************************************************************/ class LayerManager:public CCObject { public: LayerManager(); // Constructor ~LayerManager(); // Destructor String_256 CreateUniqueLayerID(); // Creates a layer name which is unique for // the current spread. BOOL CommitLayerChanges(); // Performs a LayerChangeOp which modifies the // layers in the Camelot tree based on changes // made to the LyrDetList. BOOL NewCurrentSpread(Spread* NewCurrentSpread); // NewCurrentSpread becomes the // new current spread Spread* GetCurrentSpread(); // Returns the current spread BOOL CancelLayerChanges(); // Causes the changes made to the LyrDetList // to be discarded and new values read. BOOL RefreshLayerDetails(); // Refreshes the layer details list void UpdateInterface(); // Called to update the interface // The layer details list is a list of LyrDetails for the current spread. List LyrDetList; private: Spread* CurrentSpread; // The current spread void DeleteLayerDetList(); // Deletes the contents of the LyrDetList BOOL ReadSpreadLayerDetails(); // Read the current spread's layer details into the // LyrDetList void BroadcastNewCurrentSpread();// Makes calls to other subsystems that need to know // that the current spread has changed. BOOL LayerDetailsChanged(); // Used to determine if the layer details have been // changed. We don't want to generate a LayerChangeOp // if nothing has changed. }; /******************************************************************************************** > class OpLayerChange: public UndoableOperation Author: Simon_Maneggio (Xara Group Ltd) Created: 9/7/93 Purpose: This class represents the LayerChange operation which is created by the LayerManager to make changes to the layers of the current spread. SeeAlso: LayerManager ********************************************************************************************/ class CCAPI OpLayerChange: public UndoableOperation { CC_DECLARE_DYNCREATE( OpLayerChange ); public: OpLayerChange(); static BOOL Init(); static OpState GetState(String_256*, OpDescriptor*); void Do(OpDescriptor*); virtual BOOL Undo(); virtual BOOL Redo(); }; /******************************************************************************************** > class ChangeLyrAttribAction: public Action Author: Simon_Maneggio (Xara Group Ltd) Created: 13/1/94 Purpose: When executed the ChangeLyrAttribAction changes a layer's Status SeeAlso: - ********************************************************************************************/ class CCAPI ChangeLyrAttribAction: public Action { CC_DECLARE_DYNCREATE( ChangeLyrAttribAction ) public: ChangeLyrAttribAction(); ~ChangeLyrAttribAction(); virtual ActionCode Execute(); static ActionCode Init(Operation* const pOp, ActionList* pActionList, UINT32 ActionSize, LayerStatus& Status, // The layer status which is restored // when we execute the action. Layer* Layer, // The layer to change when we execute Action** NewAction); private: Layer* ChangeLayer; // The layer to change LayerStatus Status; // the new attributes of the layer }; /******************************************************************************************** > class CCAPI OpMoveToLayer: public UndoableOperation Author: Simon_Maneggio (Xara Group Ltd) K Created: 3/5/00 Purpose: An op to move the selection from where-ever it is to the active layer. ********************************************************************************************/ class CCAPI OpMoveToLayer: public SelOperation { CC_DECLARE_DYNCREATE( OpMoveToLayer ); public: static BOOL Init(); static OpState GetState(String_256*, OpDescriptor*); void Do(OpDescriptor*); }; #endif