expbmp.cpp

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// $Id: expbmp.cpp 1282 2006-06-09 09:46:49Z alex $
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----------------------------------

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 */

// Encapsulates a set of bitmaps exported to a file.

/*
*/

#include "camtypes.h"

#include "expbmp.h"
//#include "bitmap.h" - in camtypes.h [AUTOMATICALLY REMOVED]

DECLARE_SOURCE("$Revision: 1282 $");

CC_IMPLEMENT_MEMDUMP(ExportBitmap, ListItem)
CC_IMPLEMENT_MEMDUMP(ExportBitmapList, List)
CC_IMPLEMENT_MEMDUMP(ExportedBitmaps, CCObject)

#define new CAM_DEBUG_NEW

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

>   ExportBitmap::ExportBitmap(KernelBitmap *pNewBmp, INT32 NewRecordNumber)

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     pNewBmp         - the Bitmap to put in the list.
                RecordNumber    - the number of the record that this Bitmap definition has been
                                  saved in.
    Purpose:    Create a new export Bitmap list item from the given indexed Bitmap.
    SeeAlso:    ExportBitmapList;

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

ExportBitmap::ExportBitmap(KernelBitmap *pNewBmp, INT32 NewRecordNumber)
{
    ERROR3IF(pNewBmp->HasBeenDeleted(), "Trying to export a deleted bitmap");

    // Initialise our class variables to these specified values.
    pBmp = pNewBmp;
    RecordNumber = NewRecordNumber;
}

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

>   ExportBitmapList::~ExportBitmapList()

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Destroy the list of exported Bitmaps.
    SeeAlso:    ExportedBitmaps

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

ExportBitmapList::~ExportBitmapList()
{
    // Destroy the list of Bitmaps which we may have
    //ExportBitmap* pExportedBitmap = (ExportBitmap *)GetHead();
    //while (pExportedBitmap)
    //{
    //  delete pExportedBitmap;

        // Try the next Bitmap in the list
//      pExportedBitmap = (ExportBitmap *)Bitmaps.GetNext(pExportedBitmap);
//  }
    
    DeleteAll();
}

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

>   ExportBitmap *ExportBitmapList::AddBitmap(KernelBitmap *pBmp, INT32 NewRecordNumber)

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     pNewBmp         - the Bitmap to put in the list.
                RecordNumber    - the number of the record that this Bitmap definition has been
                                  saved in.
    Returns:    Pointer to the newly added Bitmap, or 
                NULL if out of memory => ERROR1
    Purpose:    Add a new Bitmap to the list of exported Bitmaps.
    Errors:     Out of memory => ERROR1
    SeeAlso:    ExportBitmap

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

ExportBitmap *ExportBitmapList::AddBitmap(KernelBitmap *pBmp, INT32 NewRecordNumber)
{
    ERROR2IF(pBmp->HasBeenDeleted(), NULL, "Trying to add a deleted bitmap to the export list");

    ExportBitmap *pNewBmp = new ExportBitmap(pBmp, NewRecordNumber);

    // Check for out of memory
    if (pNewBmp == NULL)
        return NULL;

    // Add to the list and return success
    AddTail(pNewBmp);
    return pNewBmp;
}

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

>   ExportedBitmaps::ExportedBitmaps()

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/5/96
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Construct the class which encapsulates a list of exported Bitmaps.
    SeeAlso:    ExportedBitmaps

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

ExportedBitmaps::ExportedBitmaps()
{
}

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

>   ExportedBitmaps::~ExportedBitmaps()

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Destroy the class which encapsulates a list of exported Bitmaps.
    SeeAlso:    ExportedBitmaps

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

ExportedBitmaps::~ExportedBitmaps()
{
}

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

>   BOOL ExportedBitmaps::AddBitmap(KernelBitmap *pBmp, INT32 RecordNumber)

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     pNewBmp         - the Bitmap to put in the list.
                RecordNumber    - the number of the record that this Bitmap definition has been
                                  saved in.
    Returns:    TRUE if the Bitmap could be added;
                FALSE if not
    Purpose:    Add the specified Bitmap to the list of already exported Bitmaps.
    Errors:     -
    SeeAlso:    ExportBitmapList;

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

BOOL ExportedBitmaps::AddBitmap(KernelBitmap *pBmp, INT32 RecordNumber)
{
    ERROR2IF(pBmp->HasBeenDeleted(), FALSE, "Trying to add a deleted bitmap to the export list");

    // Add the Bitmap onto our list
    ExportBitmap * pNewBmp = Bitmaps.AddBitmap(pBmp, RecordNumber);
    if (pNewBmp)
        return TRUE;
    
    return FALSE;
}

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

>   ExportBitmap *ExportedBitmaps::GetBitmap(KernelBitmap *pSearchBmp)

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/6/96
    Inputs:     pSearchBmp          - the Bitmap to search for in the list.
    Returns:    if the item is found then returns       - Pointer to the exported Bitmap list item
                if the item is not found then returns   - NULL.
    Purpose:    Find an indexed Bitmap in the exported list.
    SeeAlso:    ExportBitmapList

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

ExportBitmap *ExportedBitmaps::GetBitmap(KernelBitmap *pSearchBmp)
{
    if (pSearchBmp == NULL)
    {
        ERROR3("ExportedBitmaps::GetBitmap - searching for a null indexed Bitmap!");
    }

    ERROR2IF(pSearchBmp->HasBeenDeleted(), NULL, "Why am I looking for a deleted bitmap ?");

    ExportBitmap* pExportedBitmap = (ExportBitmap *)Bitmaps.GetHead();
    while (pExportedBitmap)
    {
        // Compare the indexed Bitmap pointers and return the match if they are the same
        if (pExportedBitmap->pBmp == pSearchBmp)
            return pExportedBitmap;
        
        // Try the next Bitmap in the list
        pExportedBitmap = (ExportBitmap *)Bitmaps.GetNext(pExportedBitmap);
    }

    // No - return failure.
    return NULL;
}


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

>   ExportBitmap* ExportedBitmaps::EnumerateBitmaps(ExportBitmap* pExpBmp)

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/8/96
    Inputs:     -
    Returns:    if the item is found then returns       - Pointer to the exported Bitmap list item
                if the item is not found then returns   - NULL.
    Purpose:    -
    SeeAlso:    ExportBitmapList

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

ExportBitmap* ExportedBitmaps::EnumerateBitmaps(ExportBitmap* pExpBmp)
{
    if (pExpBmp == NULL)
        return (ExportBitmap *)Bitmaps.GetHead();

    return (ExportBitmap *)Bitmaps.GetNext(pExpBmp);
}

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