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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2008 by Sun Microsystems, Inc.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: PixelCounter.java,v $
* $Revision: 1.1.2.1 $
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
package graphical;
// -----------------------------------------------------------------------------
abstract class CountPixel
{
protected int m_nCount = 0;
public int getCount() {return m_nCount;}
public abstract void count(int _nRGB);
}
// -----------------------------------------------------------------------------
class CountNotWhite extends CountPixel
{
public CountNotWhite()
{
// System.out.println("CountWhite()");
}
public void countold(final int pixel)
{
// final int alpha = (pixel >> 24) & 0xff;
final int red = (pixel >> 16) & 0xff;
final int green = (pixel >> 8) & 0xff;
final int blue = (pixel ) & 0xff;
// System.out.println(String.valueOf(red) + ":" + String.valueOf(green) + ":" + String.valueOf(blue));
if (red == 0xff && green == 0xff && blue == 0xff)
{
return;
}
++m_nCount;
}
public void count(final int pixel)
{
// final int alpha = (pixel >> 24) & 0xff;
final int blue = (pixel ) & 0xff;
if (blue != 0xff)
{
++m_nCount;
return;
}
final int green = (pixel >> 8) & 0xff;
if (green != 0xff)
{
++m_nCount;
return;
}
final int red = (pixel >> 16) & 0xff;
if (red != 0xff)
{
++m_nCount;
return;
}
}
}
// -----------------------------------------------------------------------------
class CountNotBlack extends CountPixel
{
public CountNotBlack()
{
// System.out.println("CountBlack()");
}
public void countold(final int pixel)
{
// final int alpha = (pixel >> 24) & 0xff;
final int red = (pixel >> 16) & 0xff;
final int green = (pixel >> 8) & 0xff;
final int blue = (pixel ) & 0xff;
if (red == 0x00 && green == 0x00 && blue == 0x00)
{
return;
}
++m_nCount;
}
public void count(final int pixel)
{
// final int alpha = (pixel >> 24) & 0xff;
final int blue = (pixel ) & 0xff;
if (blue != 0x00)
{
++m_nCount;
return;
}
final int green = (pixel >> 8) & 0xff;
if (green != 0x00)
{
++m_nCount;
return;
}
final int red = (pixel >> 16) & 0xff;
if (red != 0x00)
{
++m_nCount;
return;
}
}
}
// -----------------------------------------------------------------------------
class graphics_stuff
{
// public int stuff()
// {
//// (1) decoding
// int rgba = 0; // ...; // comes from PixelGrabber, BufferedImage.getRGB etc.
// int red = (rgba >> 16) & 0xff;
// int green = (rgba >> 8) & 0xff;
// int blue = rgba & 0xff;
// int alpha = (rgba >> 24) & 0xff;
//// (2) now modify red, green, blue and alpha as you like;
//// make sure that each of the four values stays in the
//// interval 0 to 255
//// ...
//// (3) and encode back to an int, e.g. to give it to MemoryImageSource or
//// BufferedImage.setRGB
// rgba = (alpha << 24) | (red << 16) | (green << 8) | blue;
// return 0;
// }
// public static void handlesinglepixel(int x, int y, int pixel)
// {
// int alpha = (pixel >> 24) & 0xff;
// int red = (pixel >> 16) & 0xff;
// int green = (pixel >> 8) & 0xff;
// int blue = (pixel ) & 0xff;
// // Deal with the pixel as necessary...
// }
public static void countPixel(ImageHelper img, int _x, int _y, int _w, int _h, CountPixel _aPixelCounter)
{
for (int y = 0; y < _h; y++) {
for (int x = 0; x < _w; x++) {
// handlesinglepixel(x+i, y+j, pixels[j * w + i]);
_aPixelCounter.count(img.getPixel(x,y));
}
}
}
public static int countNotWhitePixel(ImageHelper _aImage)
{
final int w = _aImage.getWidth();
final int h = _aImage.getHeight();
CountPixel aCountNotWhite = new CountNotWhite();
countPixel(_aImage, 0, 0, w, h, aCountNotWhite);
return aCountNotWhite.getCount();
}
public static int countNotBlackPixel(ImageHelper _aImage)
{
final int w = _aImage.getWidth();
final int h = _aImage.getHeight();
CountPixel aCountNotBlack = new CountNotBlack();
countPixel(_aImage, 0, 0, w, h, aCountNotBlack);
return aCountNotBlack.getCount();
}
}
// -----------------------------------------------------------------------------
public class PixelCounter {
// private Image m_aImage;
// ImageHelper m_aImage;
public int countNotWhitePixel(String _sFile)
throws java.io.IOException
{
ImageHelper aImage = ImageHelper.createImageHelper(_sFile);
final int nw = graphics_stuff.countNotWhitePixel(aImage);
return nw;
}
public int countNotBlackPixel(String _sFile)
throws java.io.IOException
{
ImageHelper aImage = ImageHelper.createImageHelper(_sFile);
final int nw = graphics_stuff.countNotBlackPixel(aImage);
return nw;
}
public static int countNotWhitePixelsFromImage(String _sFile)
throws java.io.IOException
{
PixelCounter a = new PixelCounter();
return a.countNotWhitePixel(_sFile);
}
public static int countNotBlackPixelsFromImage(String _sFile)
throws java.io.IOException
{
PixelCounter a = new PixelCounter();
return a.countNotBlackPixel(_sFile);
}
// -----------------------------------------------------------------------------
// public static void main(String[] args) {
//
// String a = helper.StringHelper.createValueString(10, 4);
// int dummy = 1;
///*
// BorderRemover a = new BorderRemover();
// try
// {
// a.createNewImageWithoutBorder(args[0], args[1]);
// }
// catch(java.io.IOException e)
// {
// System.out.println("Exception caught.");
// }
// */
// }
}
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