bmplist.h

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// $Id: bmplist.h 751 2006-03-31 15:43:49Z 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
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

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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


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-----------------

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
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----------------

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      Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK.
                        http://www.xara.com/

=================================XARAHEADEREND============================
 */

// kernel class to encompass bitmaps lists

#ifndef INC_BMPLIST
#define INC_BMPLIST

#include "list.h"
#include "msg.h"
#include "ops.h"

class OILBitmap;
class BitmapList;
class Document;
class KernelBitmap;
class KernelBitmapRef;
class Node;
class Operation;
class Action;

/***********************************************************************************************

>   class GreyscaleBitmapList : public List

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Purpose:    A list of Greyscale bitmaps
    SeeAlso:    -

***********************************************************************************************/

/*class GreyscaleBitmapList : public List
{
    CC_DECLARE_MEMDUMP(GreyscaleBitmapList)

public:
    GreyscaleBitmapList();
    ~GreyscaleBitmapList();

    static BOOL Init();
    static BOOL DeInit();

    BOOL AddItem(OILBitmap *NewBitmap);

    virtual void AddHead( ListItem* );  
    virtual void AddTail( ListItem* );

    virtual ListItem* RemoveHead();                         
    virtual ListItem* RemoveTail(); 
    
    virtual ListItem* RemoveItem(ListItem* Item);

    virtual LISTPOS InsertBefore(LISTPOS here, ListItem* item);
    virtual ListItem *InsertBefore(ListItem* here, ListItem* item);

    virtual LISTPOS InsertAfter(LISTPOS here, ListItem* item);
    virtual ListItem *InsertAfter(ListItem* here, ListItem* item);

    INT32 GetCurrentGreyscaleSize();

    void SetMaxGreyscaleSize(INT32);
    INT32 GetMaxGreyscaleSize();

#ifdef _DEBUG
    void DumpGreyscaleBitmapListToTrace();
#endif

protected:
    void CheckSizeIsOk();

protected:
    static INT32 m_lMaxSize;

private:
    INT32 m_CurrentSize;

};
*/

/***********************************************************************************************

>   class GlobalBitmapList : public List

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Purpose:    A list of all the OIL Bitmaps available in the application
    SeeAlso:    -

***********************************************************************************************/

class GlobalBitmapList : public List
{
    CC_DECLARE_MEMDUMP(GlobalBitmapList)

public:
    GlobalBitmapList();
    ~GlobalBitmapList();

    static BOOL Init();
    static BOOL DeInit();

public:
    BOOL AddItem(OILBitmap *NewBitmap);

    void MakeNameUnique(String_256*);

    // Functions to iterate through the bitmaps
    ListItem* GetFirstBitmapName(String_256*);
    ListItem* GetNextBitmapName(ListItem*, String_256*);

    // Find a bitmap with a given name
    OILBitmap* GetBitmapFromName(String_256*);

    // Check to see if the bitmap exists already
    OILBitmap* FindDuplicateBitmap(OILBitmap* pBitmap);

    void DeleteAllUnusedBitmaps();
    BOOL IsBitmapOnClipBoard(OILBitmap* pOILBmp);
    BOOL IsUsedInDocument(Document * pDoc, OILBitmap* pOILBmp);

    // Functions to find statistics about the bitmap system
    INT32 GetDocumentBitmapCount(Document* pDoc);
    INT32 GetDocumentBitmapSize(Document* pDoc);

//  GreyscaleBitmapList* GetGreyscaleBitmapList();

#ifdef _DEBUG
    void DumpGlobalBitmapListToTrace();
#endif

protected:
//  GreyscaleBitmapList GreyscaleBitmaps;
};


/********************************************************************************************

>   class BitmapListChangedMsg: public Msg

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    8/8/94
    Purpose:    This message is sent whenever the document bitmap list changes in some way.
    SeeAlso:    -

********************************************************************************************/

class BitmapListChangedMsg: public Msg
{
    CC_DECLARE_DYNAMIC(BitmapListChangedMsg);

public:
    // BitmapList changing messages are sent on these events.
    enum BitmapListState
    {
        SELECTNEWBITMAP,            // Sent when a new bitmap has been added to the list and
                                    // this new bitmap should be the new selection in the
                                    // bitmap gallery.
        LISTCHANGED,                // Sent when the list has changed. This is the default message.
    };

    BitmapList* pChangedBmpList;    // The bitmap list being changed
    KernelBitmap* pNewBitmap;       // The new bitmap added
    BitmapListState  State;         // The message specifics, as enumerated above

    // Default message, just saying the bitmap list has changed and so update anything that
    // relies on it
    BitmapListChangedMsg(BitmapList* pList):
        pChangedBmpList(pList), pNewBitmap(NULL), State(LISTCHANGED)    { } 
    
    // New message where a new bitmap has been added and this should become the new selection.
    // At present, just used by the PhotoShop plug-ins so that this bitmap can become selected
    // in the gallery.
    BitmapListChangedMsg(BitmapList* pList, KernelBitmap *pBitmap):
        pChangedBmpList(pList), pNewBitmap(pBitmap), State(SELECTNEWBITMAP) { } 
};


// Optoken for the delete bitmap operation
#define OPTOKEN_DELETEBITMAP _T("DeleteBitmap") 

/********************************************************************************************

>   class OpDeleteBitmap: public Operation

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/2/95
    Purpose:    Removes all references to a bitmap, and deletes it from memory.
    SeeAlso:    -

********************************************************************************************/

class CCAPI OpDeleteBitmap: public Operation
{         
    CC_DECLARE_DYNCREATE( OpDeleteBitmap );

public:
    static BOOL     Init();             
    static OpState  GetState(String_256*, OpDescriptor*);       

    // The 'do' function
    void DoDelete(OILBitmap*);

protected:
    void ForceRedrawOfNode(Document*, Node*, ObjChangeParam*);
};  

#endif

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