qadevOOo/runner/convwatch/PixelCounter.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18
  19 package convwatch;
  20
  21 // import java.awt.Image;
  22 import convwatch.ImageHelper;
  23
  24 // -----------------------------------------------------------------------------
  25 abstract class CountPixel
  26 {
  27     int m_nCount = 0;
  28     public int getCount() {return m_nCount;}
  29     public abstract void count(int _nRGB);
  30 }
  31
  32 // -----------------------------------------------------------------------------
  33 class CountNotWhite extends CountPixel
  34 {
  35     public CountNotWhite()
  36         {
  37             // System.out.println("CountWhite()");
  38         }
  39
  40     public void count(int pixel)
  41         {
  42             int red   = (pixel >> 16) & 0xff;
  43             int green = (pixel >>  8) & 0xff;
  44             int blue  = (pixel      ) & 0xff;
  45
  46             // System.out.println(String.valueOf(red) + ":" + String.valueOf(green) + ":" + String.valueOf(blue));
  47             if (red == 0xff && green == 0xff && blue == 0xff)
  48             {
  49                 return;
  50             }
  51             m_nCount++;
  52         }
  53 }
  54
  55 // -----------------------------------------------------------------------------
  56 class CountNotBlack extends CountPixel
  57 {
  58     public CountNotBlack()
  59         {
  60             // System.out.println("CountBlack()");
  61         }
  62
  63     public void count(int pixel)
  64         {
  65             int red   = (pixel >> 16) & 0xff;
  66             int green = (pixel >>  8) & 0xff;
  67             int blue  = (pixel      ) & 0xff;
  68
  69             if (red == 0x00 && green == 0x00 && blue == 0x00)
  70             {
  71                 return;
  72             }
  73             m_nCount++;
  74         }
  75 }
  76
  77 // -----------------------------------------------------------------------------
  78 class graphics_stuff
  79 {
  80     public int stuff()
  81         {
  82 // (1) decoding
  83             int rgba = 0; // ...; // comes from PixelGrabber, BufferedImage.getRGB etc.
  84             int red = (rgba >> 16) & 0xff;
  85             int green = (rgba >> 8) & 0xff;
  86             int blue = rgba & 0xff;
  87             int alpha = (rgba >> 24) & 0xff;
  88 // (2) now modify red, green, blue and alpha as you like;
  89 //     make sure that each of the four values stays in the
  90 //     interval 0 to 255
  91 //            ...
  92 // (3) and encode back to an int, e.g. to give it to MemoryImageSource or
  93 //     BufferedImage.setRGB
  94                 rgba = (alpha << 24) | (red << 16) | (green << 8) | blue;
  95                 return 0;
  96         }
  97
  98     public static void handlesinglepixel(int x, int y, int pixel)
  99         {
 100         }
 101
 102     public static void countPixel(ImageHelper img, int _x, int _y, int _w, int _h, CountPixel _aPixelCounter)
 103         {
 104             for (int y = 0; y < _h; y++) {
 105                 for (int x = 0; x < _w; x++) {
 106                     // handlesinglepixel(x+i, y+j, pixels[j * w + i]);
 107                     _aPixelCounter.count(img.getPixel(x,y));
 108                 }
 109             }
 110         }
 111     public static int countNotWhitePixel(ImageHelper _aImage)
 112         {
 113             int w = _aImage.getWidth();
 114             int h = _aImage.getHeight();
 115
 116             CountPixel aCountNotWhite = new CountNotWhite();
 117             countPixel(_aImage, 0, 0, w, h, aCountNotWhite);
 118             return aCountNotWhite.getCount();
 119         }
 120
 121     public static int countNotBlackPixel(ImageHelper _aImage)
 122         {
 123             int w = _aImage.getWidth();
 124             int h = _aImage.getHeight();
 125
 126             CountPixel aCountNotBlack = new CountNotBlack();
 127             countPixel(_aImage, 0, 0, w, h, aCountNotBlack);
 128             return aCountNotBlack.getCount();
 129         }
 130 }
 131
 132 // -----------------------------------------------------------------------------
 133
 134 public class PixelCounter {
 135     // private Image m_aImage;
 136     ImageHelper m_aImage;
 137
 138
 139     public int countNotWhitePixel(String _sFile)
 140         throws java.io.IOException
 141         {
 142             m_aImage = ImageHelper.createImageHelper(_sFile);
 143             int nw = graphics_stuff.countNotWhitePixel(m_aImage);
 144             return nw;
 145         }
 146
 147     public int countNotBlackPixel(String _sFile)
 148         throws java.io.IOException
 149         {
 150             m_aImage = ImageHelper.createImageHelper(_sFile);
 151             int nw = graphics_stuff.countNotBlackPixel(m_aImage);
 152             return nw;
 153         }
 154
 155     public static int countNotWhitePixelsFromImage(String _sFile)
 156         throws java.io.IOException
 157         {
 158             PixelCounter a = new PixelCounter();
 159             return a.countNotWhitePixel(_sFile);
 160         }
 161
 162     public static int countNotBlackPixelsFromImage(String _sFile)
 163         throws java.io.IOException
 164         {
 165             PixelCounter a = new PixelCounter();
 166             return a.countNotBlackPixel(_sFile);
 167         }
 168
 169     // -----------------------------------------------------------------------------
 170
 171 //    public static void main(String[] args) {
 172 //
 173 //        String a = helper.StringHelper.createValueString(10, 4);
 174 //        int dummy = 1;
 175 ///*
 176 // BorderRemover a = new BorderRemover();
 177 //        try
 178 //        {
 179 //            a.createNewImageWithoutBorder(args[0], args[1]);
 180 //        }
 181 //        catch(java.io.IOException e)
 182 //        {
 183 //            System.out.println("Exception caught.");
 184 //        }
 185 // */
 186 //    }
 187
 188 }
 189
 190