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/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
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()
{
}
@Override
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()
{
}
@Override
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
{
private static void countPixel(ImageHelper img, int _w, int _h, CountPixel _aPixelCounter)
{
for (int y = 0; y < _h; y++) {
for (int x = 0; x < _w; x++) {
_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, 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, w, h, aCountNotBlack);
return aCountNotBlack.getCount();
}
}
public class PixelCounter {
private int countNotWhitePixel(String _sFile)
throws java.io.IOException
{
ImageHelper aImage = ImageHelper.createImageHelper(_sFile);
final int nw = graphics_stuff.countNotWhitePixel(aImage);
return nw;
}
private 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);
}
}
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