image.cpp

barcode readers [ from Image]

// Image.cpp
//
// Implementation of basic image type.
//
// Copyright (C) 2003, 2006 by Jon A. Webb (Contact via GMail; username is jonawebb)
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library is 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//

#include "Image.h"

#include "ImageSize.h"

#include <e32uid.h>

namespace Core
{
	CImage::CImage()
	{
	}

	CImage::CImage(CFbsBitmap& bitmap)
	{
		iBitmap.Duplicate(bitmap.Handle());
	}

	CImage& CImage::operator=(const CImage& other)
	{
		if (this != &other) {
			iBitmap.Reset();
			iBitmap.Duplicate(other.iBitmap.Handle());
		}
		return *this;
	}


	CImage::~CImage()
	{
		iBitmap.Reset();
	}

	EXPORT_C CImage CImage::NewL(int nWidth, int nHeight, TDisplayMode colorspace)
	{
		CFbsBitmap *pBmp = new (ELeave) CFbsBitmap;
		CleanupStack::PushL(pBmp);
		User::LeaveIfError(pBmp->Create(
			TSize(nWidth, nHeight), 
			colorspace));
		// Now use the new CFbsBitmap to create the CImage...
		CImage pMe = CImage(*pBmp);
		CleanupStack::PopAndDestroy(pBmp); // doesn't actually destroy, just decr ref count
		return pMe;
	}

	EXPORT_C CImage CImage::NewL(TSize size, TDisplayMode colorspace)
	{
		return NewL(size.iWidth, size.iHeight, colorspace);
	}


	CImage::CImage(const CImage& other)
	{
		iBitmap.Duplicate(other.iBitmap.Handle());
	}

	void CImage::LockLC() const
	{
		iBitmap.LockHeapLC();
	}
}; // namespace Core