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
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33 using System;
  34 using System.Drawing;
  35 using System.Drawing.Imaging;
  36 using NUnit.Framework;
  37 using System.IO;
  38
  39 namespace MonoTests.System.Drawing
  40 {
  41
  42         [TestFixture]
  43         public class TestJpegCodec
  44         {
  45
  46                 [TearDown]
  47                 public void Clean() {}
  48
  49                 [SetUp]
  50                 public void GetReady()
  51                 {
  52
  53                 }
  54
  55                 /* Get the output directory depending on the runtime and location*/
  56                 internal string getOutSubDir()
  57                 {
  58                         string sSub, sRslt;
  59
  60                         if (Environment.GetEnvironmentVariable("MSNet")==null)
  61                                 sSub = "mono/";
  62                         else
  63                                 sSub = "MSNet/";
  64
  65                         sRslt = Path.GetFullPath ("../System.Drawing/" +  sSub);
  66
  67                         if (Directory.Exists(sRslt) ==  false)
  68                                 sRslt = "Test/System.Drawing/" + sSub;
  69
  70                         if (sRslt.Length > 0)
  71                                 if (sRslt[sRslt.Length-1] != '\\' && sRslt[sRslt.Length-1] != '/')
  72                                         sRslt += "/";
  73                         return sRslt;
  74                 }
  75
  76                 /* Get the input directory depending on the runtime*/
  77                 internal string getInFile(string file)
  78                 {
  79                         string sRslt, local;
  80
  81                         local = "../System.Drawing/" + file;
  82
  83                         sRslt = Path.GetFullPath (local);
  84
  85                         if (File.Exists(sRslt)==false)
  86                                 sRslt = "Test/System.Drawing/" + file;
  87
  88                         return sRslt;
  89                 }
  90
  91                 /* Checks bitmap features on a know 24-bits bitmap */
  92                 [Test]
  93                 public void Bitmap24bitFeatures()
  94                 {
  95                         string sInFile = getInFile ("bitmaps/nature24bits.jpg");
  96                         Bitmap  bmp = new Bitmap(sInFile);
  97                         RectangleF rect;
  98                         GraphicsUnit unit = GraphicsUnit.World;
  99
 100                         rect = bmp.GetBounds(ref unit);
 101
 102                         Assert.AreEqual (PixelFormat.Format24bppRgb, bmp.PixelFormat);
 103                         Assert.AreEqual (110, bmp.Width);
 104                         Assert.AreEqual (100, bmp.Height);
 105
 106                         Assert.AreEqual (0, rect.X);
 107                         Assert.AreEqual (0, rect.Y);
 108                         Assert.AreEqual (110, rect.Width);
 109                         Assert.AreEqual (100, rect.Height);
 110
 111                         Assert.AreEqual (110, bmp.Size.Width);
 112                         Assert.AreEqual (100, bmp.Size.Height);
 113
 114                 }
 115
 116                 [Test]
 117                 public void Save()
 118                 {
 119                         string sOutFile =  getOutSubDir() + "linerect.jpeg";
 120
 121                         // Save
 122                         Bitmap  bmp = new Bitmap(100,100, PixelFormat.Format32bppRgb);
 123                         Graphics gr = Graphics.FromImage(bmp);
 124
 125                         Pen p = new Pen(Color.Red, 2);
 126                         gr.DrawLine(p, 10.0F, 10.0F, 90.0F, 90.0F);
 127                         gr.DrawRectangle(p, 10.0F, 10.0F, 80.0F, 80.0F);
 128                         p.Dispose();
 129                         bmp.Save(sOutFile, ImageFormat.Bmp);
 130                         gr.Dispose();
 131                         bmp.Dispose();
 132
 133                         // Load
 134                         Bitmap  bmpLoad = new Bitmap(sOutFile);
 135
 136                         Color color = bmpLoad.GetPixel(10,10);
 137
 138                         Assert.AreEqual (Color.FromArgb(255,255,0,0), color);
 139                 }
 140
 141
 142         }
 143 }