mcs/class/System.Drawing/Test/System.Drawing.Imaging/TestJpegCodec.cs

   1 //
   2 // JpegCodec class testing unit
   3 //
   4 // Author:
   5 //
   6 //       Jordi Mas i Hernàndez (jordi@ximian.com)
   7 //
   8 // (C) 2004 Ximian, Inc.  http://www.ximian.com
   9 //
  10 using System;
  11 using System.Drawing;
  12 using System.Drawing.Imaging;
  13 using NUnit.Framework;
  14 using System.IO;
  15
  16 namespace MonoTests.System.Drawing
  17 {
  18
  19         [TestFixture]
  20         public class TestJpegCodec : Assertion
  21         {
  22
  23                 [TearDown]
  24                 public void Clean() {}
  25
  26                 [SetUp]
  27                 public void GetReady()
  28                 {
  29
  30                 }
  31
  32                 /* Get the output directory depending on the runtime and location*/
  33                 internal string getOutSubDir()
  34                 {
  35                         string sSub, sRslt;
  36
  37                         if (Environment.GetEnvironmentVariable("MSNet")==null)
  38                                 sSub = "mono/";
  39                         else
  40                                 sSub = "MSNet/";
  41
  42                         sRslt = Path.GetFullPath ("../System.Drawing/" +  sSub);
  43
  44                         if (Directory.Exists(sRslt) ==  false)
  45                                 sRslt = "Test/System.Drawing/" + sSub;
  46
  47                         if (sRslt.Length > 0)
  48                                 if (sRslt[sRslt.Length-1] != '\\' && sRslt[sRslt.Length-1] != '/')
  49                                         sRslt += "/";
  50                         return sRslt;
  51                 }
  52
  53                 /* Get the input directory depending on the runtime*/
  54                 internal string getInFile(string file)
  55                 {
  56                         string sRslt, local;
  57
  58                         local = "../System.Drawing/" + file;
  59
  60                         sRslt = Path.GetFullPath (local);
  61
  62                         if (File.Exists(sRslt)==false)
  63                                 sRslt = "Test/System.Drawing/" + file;
  64
  65                         return sRslt;
  66                 }
  67
  68                 /* Checks bitmap features on a know 24-bits bitmap */
  69                 [Test]
  70                 public void Bitmap24bitFeatures()
  71                 {
  72                         string sInFile = getInFile ("bitmaps/nature24bits.jpg");
  73                         Bitmap  bmp = new Bitmap(sInFile);
  74                         RectangleF rect;
  75                         GraphicsUnit unit = GraphicsUnit.World;
  76
  77                         rect = bmp.GetBounds(ref unit);
  78
  79                         AssertEquals (PixelFormat.Format24bppRgb, bmp.PixelFormat);
  80                         AssertEquals (110, bmp.Width);
  81                         AssertEquals (100, bmp.Height);
  82
  83                         AssertEquals (0, rect.X);
  84                         AssertEquals (0, rect.Y);
  85                         AssertEquals (110, rect.Width);
  86                         AssertEquals (100, rect.Height);
  87
  88                         AssertEquals (110, bmp.Size.Width);
  89                         AssertEquals (100, bmp.Size.Height);
  90
  91                 }
  92
  93                 [Test]
  94                 public void Save()
  95                 {
  96                         string sOutFile =  getOutSubDir() + "linerect.jpeg";
  97
  98                         // Save
  99                         Bitmap  bmp = new Bitmap(100,100, PixelFormat.Format32bppRgb);
 100                         Graphics gr = Graphics.FromImage(bmp);
 101
 102                         Pen p = new Pen(Color.Red, 2);
 103                         gr.DrawLine(p, 10.0F, 10.0F, 90.0F, 90.0F);
 104                         gr.DrawRectangle(p, 10.0F, 10.0F, 80.0F, 80.0F);
 105                         p.Dispose();
 106                         bmp.Save(sOutFile, ImageFormat.Bmp);
 107                         gr.Dispose();
 108                         bmp.Dispose();
 109
 110                         // Load
 111                         Bitmap  bmpLoad = new Bitmap(sOutFile);
 112
 113                         Color color = bmpLoad.GetPixel(10,10);
 114
 115                         AssertEquals (Color.FromArgb(255,255,0,0), color);
 116                 }
 117
 118
 119         }
 120 }