exphint.cpp

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// $Id: exphint.cpp 1688 2006-08-10 12:05:20Z gerry $
// $$
//
// Export hint class
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
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              respective authors. See AUTHORS file for details.

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

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

/*
*/

#include "camtypes.h"
#include "exphint.h"

//#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "cxftags.h"
//#include "filtrres.h"

// An implement to match the Declare in the .h file.
CC_IMPLEMENT_MEMDUMP(ExportHint, CC_CLASS_MEMDUMP);
CC_IMPLEMENT_DYNAMIC(ExportHintRecordHandler, CamelotRecordHandler);

// This will get Camelot to display the filename and linenumber of any memory allocations
// that are not released at program exit
// Declare smart memory handling in Debug builds
#define new CAM_DEBUG_NEW

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

>   ExportHint::ExportHint()

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Purpose:    Default constructor
    SeeAlso:    -

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

ExportHint::ExportHint()
{
    m_Type = HINTTYPE_BAD;
    m_Width = 0;
    m_Height = 0;
    m_BPP = 0;

    // The contructor of the string should ensure this but...
    m_sOptions.Empty();
}


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

>   ExportHint::ExportHint(const ExportHint& other)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Purpose:    Copy constructor
    SeeAlso:    -

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

ExportHint::ExportHint(const ExportHint& other)
{
    // Use the assignment operator
    *(this) = other;
}


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

>   const ExportHint& ExportHint::operator=(const ExportHint& other)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Purpose:    Assignment operator
    SeeAlso:    -

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

const ExportHint& ExportHint::operator=(const ExportHint& other)
{
    m_Type = other.m_Type;
    m_Width = other.m_Width;
    m_Height = other.m_Height;
    m_BPP = other.m_BPP;
    m_sOptions = other.m_sOptions;

    return(*this);
}



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

>   BOOL ExportHint::InitFromRecord(CXaraFileRecord* pRecord)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Purpose:    Initialises the hint from a Flare record
    SeeAlso:    -

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

BOOL ExportHint::InitFromRecord(CXaraFileRecord* pRecord)
{
    String_256 sOptions;

    BOOL ok = pRecord->ReadUINT32(&m_Type);
    if (ok) ok = pRecord->ReadUINT32(&m_Width);
    if (ok) ok = pRecord->ReadUINT32(&m_Height);
    if (ok) ok = pRecord->ReadUINT32(&m_BPP);
    if (ok) ok = pRecord->ReadASCII(sOptions, 256);

    m_sOptions = sOptions;

    return(ok);
}



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

>   BOOL ExportHint::WriteExportHintRecord(BaseCamelotFilter* pFilter)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Purpose:    Writes the hint to a Flare record
    SeeAlso:    -

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

BOOL ExportHint::WriteExportHintRecord(BaseCamelotFilter* pFilter)
{
    // If the hint hasn't been set then don't save it
    if (m_Type == HINTTYPE_BAD)
        return(TRUE);
    
    // Add a description of the TAG_EXPORT_HINT record
    pFilter->AddTagDescription(TAG_EXPORT_HINT, _R(IDS_TAG_EXPORT_HINT));

    BOOL ok = TRUE;
    // Create a record (variable length)
    CXaraFileRecord Rec(TAG_EXPORT_HINT);
    ok = Rec.Init();

    if (ok) ok = Rec.WriteUINT32(m_Type);
    if (ok) ok = Rec.WriteUINT32(m_Width);
    if (ok) ok = Rec.WriteUINT32(m_Height);
    if (ok) ok = Rec.WriteUINT32(m_BPP);
    if (ok) ok = Rec.WriteASCII(m_sOptions);

    INT32 RecNum = 0;
    if (ok) RecNum = pFilter->Write(&Rec);  // Write the record
    if (RecNum == 0)
        ok = FALSE;

    return(ok);
}


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

>   virtual UINT32* ExportHintRecordHandler::GetTagList()

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Returns:    Ptr to a list of tag values, terminated by CXFRH_TAG_LIST_END
    Purpose:    Provides the record handler system with a list of records handled by this
                handler

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

UINT32* ExportHintRecordHandler::GetTagList()
{
    static const UINT32 TagList[] = {TAG_EXPORT_HINT, CXFRH_TAG_LIST_END};

    return (UINT32*)&TagList;
}


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

>   virtual BOOL ExportHintRecordHandler::HandleRecord(CXaraFileRecord* pRecord)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Inputs:     pCXaraFileRecord = ptr to record to handle
    Returns:    TRUE if handled successfuly
                FALSE otherwise

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

BOOL ExportHintRecordHandler::HandleRecord(CXaraFileRecord* pRecord)
{
    ERROR2IF(pRecord == NULL, FALSE, "pCXaraFileRecord is NULL");
    ERROR2IF(pRecord->GetTag() != TAG_EXPORT_HINT, FALSE, "I don't handle this tag type");

    BaseCamelotFilter* const pFilter = GetBaseCamelotFilter();
    ERROR2IF(pFilter == NULL, FALSE, "No filter in ExportHint::HandleRecord");

    Document* pDocument = pFilter->GetDocument();
    ERROR2IF(pDocument == NULL, FALSE, "No Document in ExportHint::HandleRecord");

    ExportHint* pHint = pDocument->GetExportHint(); 
    ERROR2IF(pHint == NULL, FALSE, "No ExportHint in ExportHint::HandleRecord");

    return(pHint->InitFromRecord(pRecord));
}


#ifdef XAR_TREE_DIALOG
/********************************************************************************************

>   virtual void ExportHintRecordHandler::GetRecordDescriptionText(
                                            CXaraFileRecord* pRecord, StringBase* pStr)
    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Inputs:     pRecord - ptr to a record
                pStr - ptr to string to update
    Purpose:    Provides descriptve text for debug dialog

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

void ExportHintRecordHandler::GetRecordDescriptionText(CXaraFileRecord* pRecord,StringBase* pStr)
{
    if (pStr == NULL || pRecord == NULL)
    {
        TRACE( _T("ExportHintRecordHandler::GetRecordDescriptionText - NULL Args\n"));
        return;
    }
    if (pRecord->GetTag() != TAG_EXPORT_HINT)
    {
        TRACE( _T("ExportHintRecordHandler::GetRecordDescriptionText - Incorrect record\n"));
        return;
    }

    //   Call base class first
    CamelotRecordHandler::GetRecordDescriptionText(pRecord, pStr);

    UINT32 Type;
    UINT32 Width;
    UINT32 Height;
    UINT32 BPP;
    String_256 sOptions;
    String_16 sNumber;

    BOOL ok = pRecord->ReadUINT32(&Type);
    if (ok) ok = pRecord->ReadUINT32(&Width);
    if (ok) ok = pRecord->ReadUINT32(&Height);
    if (ok) ok = pRecord->ReadUINT32(&BPP);
    if (ok) ok = pRecord->ReadASCII(sOptions, 256);

    if (ok)
    {
        *pStr += TEXT("Type = ");
        ok = Convert::LongToString(Type, &sNumber);
        if (ok) *pStr += sNumber;
        if (ok) *pStr += _T("\r\n");
    }
    if (ok)
    {
        *pStr += TEXT("Width = ");
        ok = Convert::LongToString(Width, &sNumber);
        if (ok) *pStr += sNumber;
        if (ok) *pStr += _T("\r\n");
    }
    if (ok)
    {
        *pStr += TEXT("Height = ");
        ok = Convert::LongToString(Height, &sNumber);
        if (ok) *pStr += sNumber;
        if (ok) *pStr += _T("\r\n");
    }
    if (ok)
    {
        *pStr += TEXT("BPP = ");
        ok = Convert::LongToString(BPP, &sNumber);
        if (ok) *pStr += sNumber;
        if (ok) *pStr += _T("\r\n");
    }
    if (ok)
    {
        *pStr += TEXT("Options = ");
        if (ok) *pStr += sOptions;
        if (ok) *pStr += _T("\r\n");
    }
}


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

>   virtual void ExportHintRecordHandler::GetTagText(UINT32 Tag,String_256& Str)

    Author:     Gerry_Iles (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/07/97
    Inputs:     Tag - the tag value
    Outputs:    Str - place to put textual description of the tag
    Purpose:    Returns the tag description in the string

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

void ExportHintRecordHandler::GetTagText(UINT32 Tag, String_256& Str)
{
    Str = TEXT("TAG_EXPORT_HINT");
}
#endif  // _DEBUG

---