qadevOOo/runner/graphical/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 graphical;
  20
  21
  22 // -----------------------------------------------------------------------------
  23 abstract class CountPixel
  24 {
  25     protected int m_nCount = 0;
  26     public int getCount() {return m_nCount;}
  27     public abstract void count(int _nRGB);
  28 }
  29
  30 // -----------------------------------------------------------------------------
  31 class CountNotWhite extends CountPixel
  32 {
  33     public CountNotWhite()
  34         {
  35             // System.out.println("CountWhite()");
  36         }
  37
  38     public void countold(final int pixel)
  39         {
  40             // final int alpha = (pixel >> 24) & 0xff;
  41             final int red   = (pixel >> 16) & 0xff;
  42             final int green = (pixel >>  8) & 0xff;
  43             final int blue  = (pixel      ) & 0xff;
  44
  45             // System.out.println(String.valueOf(red) + ":" + String.valueOf(green) + ":" + String.valueOf(blue));
  46             if (red == 0xff && green == 0xff && blue == 0xff)
  47             {
  48                 return;
  49             }
  50             ++m_nCount;
  51         }
  52     public void count(final int pixel)
  53         {
  54             // final int alpha = (pixel >> 24) & 0xff;
  55             final int blue  = (pixel      ) & 0xff;
  56             if (blue != 0xff)
  57             {
  58                 ++m_nCount;
  59                 return;
  60             }
  61             final int green = (pixel >>  8) & 0xff;
  62             if (green != 0xff)
  63             {
  64                 ++m_nCount;
  65                 return;
  66             }
  67             final int red   = (pixel >> 16) & 0xff;
  68             if (red != 0xff)
  69             {
  70                 ++m_nCount;
  71                 return;
  72             }
  73         }
  74 }
  75
  76 // -----------------------------------------------------------------------------
  77 class CountNotBlack extends CountPixel
  78 {
  79     public CountNotBlack()
  80         {
  81             // System.out.println("CountBlack()");
  82         }
  83
  84     public void countold(final int pixel)
  85         {
  86             // final int alpha = (pixel >> 24) & 0xff;
  87             final int red   = (pixel >> 16) & 0xff;
  88             final int green = (pixel >>  8) & 0xff;
  89             final int blue  = (pixel      ) & 0xff;
  90
  91             if (red == 0x00 && green == 0x00 && blue == 0x00)
  92             {
  93                 return;
  94             }
  95             ++m_nCount;
  96         }
  97     public void count(final int pixel)
  98         {
  99             // final int alpha = (pixel >> 24) & 0xff;
 100             final int blue  = (pixel      ) & 0xff;
 101             if (blue != 0x00)
 102             {
 103                 ++m_nCount;
 104                 return;
 105             }
 106             final int green = (pixel >>  8) & 0xff;
 107             if (green != 0x00)
 108             {
 109                 ++m_nCount;
 110                 return;
 111             }
 112             final int red   = (pixel >> 16) & 0xff;
 113             if (red != 0x00)
 114             {
 115                 ++m_nCount;
 116                 return;
 117             }
 118         }
 119 }
 120
 121 // -----------------------------------------------------------------------------
 122 class graphics_stuff
 123 {
 124 //    public int stuff()
 125 //        {
 126 //// (1) decoding
 127 //            int rgba = 0; // ...; // comes from PixelGrabber, BufferedImage.getRGB etc.
 128 //            int red = (rgba >> 16) & 0xff;
 129 //            int green = (rgba >> 8) & 0xff;
 130 //            int blue = rgba & 0xff;
 131 //            int alpha = (rgba >> 24) & 0xff;
 132 //// (2) now modify red, green, blue and alpha as you like;
 133 ////     make sure that each of the four values stays in the
 134 ////     interval 0 to 255
 135 ////            ...
 136 //// (3) and encode back to an int, e.g. to give it to MemoryImageSource or
 137 ////     BufferedImage.setRGB
 138 //                rgba = (alpha << 24) | (red << 16) | (green << 8) | blue;
 139 //                return 0;
 140 //        }
 141
 142 //    public static void handlesinglepixel(int x, int y, int pixel)
 143 //        {
 144 //            int alpha = (pixel >> 24) & 0xff;
 145 //            int red   = (pixel >> 16) & 0xff;
 146 //            int green = (pixel >>  8) & 0xff;
 147 //            int blue  = (pixel      ) & 0xff;
 148 //            // Deal with the pixel as necessary...
 149 //        }
 150
 151     public static void countPixel(ImageHelper img, int _x, int _y, int _w, int _h, CountPixel _aPixelCounter)
 152         {
 153             for (int y = 0; y < _h; y++) {
 154                 for (int x = 0; x < _w; x++) {
 155                     // handlesinglepixel(x+i, y+j, pixels[j * w + i]);
 156                     _aPixelCounter.count(img.getPixel(x,y));
 157                 }
 158             }
 159         }
 160     public static int countNotWhitePixel(ImageHelper _aImage)
 161         {
 162             final int w = _aImage.getWidth();
 163             final int h = _aImage.getHeight();
 164
 165             CountPixel aCountNotWhite = new CountNotWhite();
 166             countPixel(_aImage, 0, 0, w, h, aCountNotWhite);
 167             return aCountNotWhite.getCount();
 168         }
 169
 170     public static int countNotBlackPixel(ImageHelper _aImage)
 171         {
 172             final int w = _aImage.getWidth();
 173             final int h = _aImage.getHeight();
 174
 175             CountPixel aCountNotBlack = new CountNotBlack();
 176             countPixel(_aImage, 0, 0, w, h, aCountNotBlack);
 177             return aCountNotBlack.getCount();
 178         }
 179 }
 180
 181 // -----------------------------------------------------------------------------
 182
 183 public class PixelCounter {
 184     // private Image m_aImage;
 185     // ImageHelper m_aImage;
 186
 187
 188     public int countNotWhitePixel(String _sFile)
 189         throws java.io.IOException
 190         {
 191             ImageHelper aImage = ImageHelper.createImageHelper(_sFile);
 192             final int nw = graphics_stuff.countNotWhitePixel(aImage);
 193             return nw;
 194         }
 195
 196     public int countNotBlackPixel(String _sFile)
 197         throws java.io.IOException
 198         {
 199             ImageHelper aImage = ImageHelper.createImageHelper(_sFile);
 200             final int nw = graphics_stuff.countNotBlackPixel(aImage);
 201             return nw;
 202         }
 203
 204     public static int countNotWhitePixelsFromImage(String _sFile)
 205         throws java.io.IOException
 206         {
 207             PixelCounter a = new PixelCounter();
 208             return a.countNotWhitePixel(_sFile);
 209         }
 210
 211     public static int countNotBlackPixelsFromImage(String _sFile)
 212         throws java.io.IOException
 213         {
 214             PixelCounter a = new PixelCounter();
 215             return a.countNotBlackPixel(_sFile);
 216         }
 217
 218     // -----------------------------------------------------------------------------
 219
 220 //    public static void main(String[] args) {
 221 //
 222 //        String a = helper.StringHelper.createValueString(10, 4);
 223 //        int dummy = 1;
 224 ///*
 225 // BorderRemover a = new BorderRemover();
 226 //        try
 227 //        {
 228 //            a.createNewImageWithoutBorder(args[0], args[1]);
 229 //        }
 230 //        catch(java.io.IOException e)
 231 //        {
 232 //            System.out.println("Exception caught.");
 233 //        }
 234 // */
 235 //    }
 236 }
 237
 238