/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Joe Hewitt <hewitt@netscape.com> (original author)
 *
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "inBitmap.h"

#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsReadableUtils.h"

///////////////////////////////////////////////////////////////////////////////

inBitmap::inBitmap()
{
  NS_INIT_REFCNT();
}

inBitmap::~inBitmap()
{
  delete mBits;
}

NS_IMPL_ISUPPORTS1(inBitmap, inIBitmap);

///////////////////////////////////////////////////////////////////////////////
// inIBitmap

NS_IMETHODIMP
inBitmap::Init(PRUint32 aWidth, PRUint32 aHeight, PRUint8 aBytesPerPixel)
{
  mWidth = aWidth;
  mHeight = aHeight;
  
  if (aBytesPerPixel == 8) {
    mBits = new PRUint8[aWidth*aHeight];
  } else if (aBytesPerPixel == 16) {
    mBits = new PRUint8[aWidth*aHeight*2];
  } else if (aBytesPerPixel == 32 || aBytesPerPixel == 24) {
    mBits = new PRUint8[aWidth*aHeight*3];
  }

  return NS_OK;
}

NS_IMETHODIMP
inBitmap::GetWidth(PRUint32* aWidth)
{
  *aWidth = mWidth;
  return NS_OK;
}

NS_IMETHODIMP 
inBitmap::GetHeight(PRUint32* aHeight)
{
  *aHeight = mHeight;
  return NS_OK;
}

NS_IMETHODIMP
inBitmap::GetBits(PRUint8** aBits)
{
  *aBits = mBits;
  return NS_OK;
}

NS_IMETHODIMP
inBitmap::GetPixelHex(PRUint32 aX, PRUint32 aY, PRUnichar **_retval)
{
  if (aX < 0 || aX > mWidth || aY < 0 || aY > mHeight)
    return NS_ERROR_FAILURE;
    
  PRUint8* c = mBits + ((aX+(mWidth*aY))*3);
  PRUint8 b = c[0];
  PRUint8 g = c[1];
  PRUint8 r = c[2];

  char* s = new char[7];
  sprintf(s, "#%2X%2X%2X", r, g, b);
  // sprintf won't 0-pad my hex values, so I have to space-pad it
  // and then replace space characters with zero characters
  for (PRUint8 i = 0; i < 6; ++i)
    if (s[i] == 32)
      s[i] = 48;
      
  nsAutoString str;
  str.AssignWithConversion(s);
  delete s;
  
  *_retval = ToNewUnicode(str);

  return NS_OK;
}

NS_IMETHODIMP
inBitmap::PutPixel(PRUint32 aX, PRUint32 aY, PRUint8 aR, PRUint8 aG, PRUint8 aB, PRUnichar **_retval)
{
  return NS_OK;
}

NS_IMETHODIMP
inBitmap::PutPixelHex(PRUint32 aX, PRUint32 aY, const PRUnichar *aColor, PRUnichar **_retval)
{
  return NS_OK;
}

