// $Id: csrstack.h 1646 2006-08-02 15:32:50Z luke $ /* @@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============================ */ // The Cursor Stack (interface). #ifndef CSRSTACK__INC #define CSRSTACK__INC class Cursor; /******************************************************************************************** > class CursorIdent : public CC_CLASS_MEMDUMP Author: Jim_Lynn (Xara Group Ltd) Created: 27/1/95 Purpose: Used in the cursor stack - holds a pointer to a cursor and an identifying ID SeeAlso: CursorStack ********************************************************************************************/ class CursorIdent : public CC_CLASS_MEMDUMP { public: Cursor* pCursor; // The pointer to the cursor this object refers to INT32 UniqueID; // Unique identifying ID that is used to reference objects // on the cursor stack static INT32 NextUniqueID; // static variable holding next ID to be used CursorIdent(); // Default constructor ~CursorIdent(); // Destructor INT32 StoreNewCursor(Cursor* NewCursor); }; /************************************************************************************************ > class CursorStack : public CC_CLASS_MEMDUMP Author: Justin_Flude (Xara Group Ltd) Created: 15th November, 1993 Purpose: A stack of Cursor objects, which is part of the kernel (NB Cursor objects are part of the OIL). ************************************************************************************************/ class CursorStack : public CC_CLASS_MEMDUMP { friend void BeginBusyCursor(); friend void EndBusyCursor(); friend void SmashBusyCursor(); // Give my name in memory dumps CC_DECLARE_MEMDUMP(CursorStack); public: CursorStack(INT32 maxdepth = 10); // construct a (default-sized) stack of cursors virtual ~CursorStack(); static BOOL Init(); // called upon application startup and shutdown static void DeInit(); // new static functions to replace accessing Global directly static BOOL GIsValid(); static INT32 GPush(Cursor* pCursor, BOOL ActivateNow = TRUE); static Cursor* GPop(INT32 cursorID/* = 0 */); static Cursor* GSetTop(Cursor* pCursor, INT32 cursorID/* = 0*/); static void GSetActive(); static BOOL GIsActive(const Cursor* pCursor); static Cursor* GetActive(); void BeginBusy(); // Set the busy cursor (and increment the busy count) void EndBusy(); // clear the busy cursor (if the busy count reaches zero) void SmashBusy(); // Smash the busy cursor (ensure it is off) // these are the original member functions, which will probably go private in time private: BOOL IsValid() const; INT32 Push(Cursor* pCursor, BOOL ActivateNow = TRUE); Cursor* Pop(INT32 cursorID = 0); Cursor* SetTop(Cursor* pCursor, INT32 cursorID = 0); void SetActive( bool fOnlyRendWnd = true ) const; BOOL IsActive(const Cursor* pCursor) const; // IMPORTANT: DONT USE THIS VAR IN NEW CODE - IT IS DUE TO DIE SOON static CursorStack* Global; // the stack shared by the whole application CursorIdent* pcStack; // Pointer to array of CursorIdent objects INT32 nNextFreeSlot; // index of the next available slot in the array INT32 nSentinel; // one more than the last slot in the array INT32 BusyCount; // if >0, show the busy cursor }; // These global functions provide a convenient shorthand for common cursor functions. void BeginBusyCursor(); void EndBusyCursor(); void SmashBusyCursor(); #endif // CSRSTACK__INC