rendbits.cpp

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// $Id: rendbits.cpp 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.

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

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License described above, Xara Group Ltd grants to you certain additional
rights. 

The additional rights are to use, modify, and distribute the software
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=================================XARAHEADEREND============================
 */

// class to render into a bitmap (for hit-testing)

/*
*/

#include "camtypes.h"
#include "rendbits.h"
//#include "docview.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "ccdc.h"
//#include "fixmem.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "resource.h"
#include "grndclik.h"
//#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED]

// RealClickClass is the class name to use for generic 'bitmap click' class whic
// exands to either OSRenderBitmap or GRenderClick

#define RealClickClass  GRenderClick



#define new CAM_DEBUG_NEW


#ifndef CLR_INVALID
// Win16 doesn't define this
#define CLR_INVALID 0xFFFFFFFF
#endif



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

>   RenderRegion* OSRenderBitmap::Create(DocRect Rect, Matrix ConvertMatrix, FIXED16 Scale, UINT32 Depth)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/11/93
    Inputs:     None
    Outputs:    None
    Returns:    None
    Purpose:    Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw).
    SeeAlso:    OSRenderRegion::Create

********************************************************************************************/
/*
RenderRegion* OSRenderBitmap::Create(DocRect Rect, Matrix ConvertMatrix, FIXED16 Scale, UINT32 Depth, BOOL colour)
{
    if (colour == FALSE)
        return new GRenderClick( Rect, ConvertMatrix, Scale, Depth, 0.0 );
    else
        return new GRenderClickColour( Rect, ConvertMatrix, Scale, Depth, 0.0 );
}
*/




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

>   RenderRegion* OSRenderBitmap::Create(DocRect Rect, Matrix ConvertMatrix, FIXED16 Scale, RenderType rType)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/11/93
    Inputs:     None
    Outputs:    None
    Returns:    None
    Purpose:    Creates a region of type OSRenderBitmap (GDI) or GRenderClick (GDraw).
    SeeAlso:    OSRenderRegion::Create

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

RenderRegion* OSRenderBitmap::Create(DocRect Rect, Matrix ConvertMatrix, FIXED16 Scale, RenderType rType)
{
    switch (rType)
    {
    case RENDERTYPE_MONOBITMAP:
//      TRACE(_T("Creating MONOBITMAP region (%d, %d) - (%d, %d)  GRenderClick\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y);
        return new GRenderClick( Rect, ConvertMatrix, Scale, 1, 0.0 );
        break;

    case RENDERTYPE_COLOURBITMAP:
//      TRACE(_T("Creating COLOURBITMAP region (%d, %d) - (%d, %d)  GRenderClickColour\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y);
        return new GRenderClickColour( Rect, ConvertMatrix, Scale, 32, 0.0 );
        break;

    case RENDERTYPE_HITDETECT:
//      TRACE(_T("Creating HITDETECT region (%d, %d) - (%d, %d)  GRenderClickColourNoPaper\n"), Rect.lo.x, Rect.lo.y, Rect.hi.x, Rect.hi.y);
        return new GRenderClickColourNoPaper( Rect, ConvertMatrix, Scale, 32, 0.0 );
// BODGE TEST! DO NOT RELEASE!
//      return new GRenderClick( Rect, ConvertMatrix, Scale, 1, 0.0 );
        break;

    default:
        ENSURE(FALSE, "Invalid RenderType passed to OSRenderBitmap::Create");
        return NULL;
    }
    return NULL;
}





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

>   BitmapContents OSRenderBitmap::GetContents( RenderRegion *pRegion, BOOL justmiddle)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/11/93
    Inputs:     A render region which must have been created with RenderOnTop(MONOBITMAP).
                if justmiddle is TRUE, only checks on the centre pixel will be done (which
                is faster).
    Outputs:    None
    Returns:    BITMAPCONTENTS_CENTRE if centre pixel is set, _ANY if any pixel is set,
                _NONE if none and _ERROR if failed for some reason.
    Purpose:    To investigate whether anything has been rendered into a bitmap-based
                render region.
    Errors:     Will ENSURE if NULL render region, if it is not really a OSRenderBitmap.
    Scope:      Static

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

BitmapContents OSRenderBitmap::GetContents( RenderRegion *pRegion, BOOL JustMiddle)
{
    ERROR2IF( pRegion==NULL, BITMAPCONTENTS_ERROR, "NULL pRegion" );

    ERROR2IF( !pRegion->IsKindOf(CC_RUNTIME_CLASS(GRenderClick)), BITMAPCONTENTS_ERROR, "Wrong class"  );

    RealClickClass *pBitmap = (RealClickClass*)pRegion;             // safe to cast now
    return pBitmap->GetContents( JustMiddle );                      // then use member fn
}


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

>   void OSRenderBitmap::DebugMe( RenderRegion*, INT32 Stretch=1 )

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/11/93
    Inputs:     How much you want the image stretched by
    Outputs:    -
    Returns:    -
    Purpose:    Dupms the current bitmap onto the current view window, so we can see what
                is going on.
    Errors:     -
    Scope:      Public static

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

void OSRenderBitmap::DebugMe(RenderRegion *pRegion, INT32 Stretch)
{

    if (pRegion->IsKindOf( CC_RUNTIME_CLASS(GRenderClick) ) )
        ((RealClickClass*)pRegion)->DebugMe(Stretch);
    else
        ERROR3("Wrong class for DebugMe");
}

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