mcs/class/System.Drawing/Test/System.Drawing/TestBitmap.cs

   1 //
   2 // Bitmap class testing unit
   3 //
   4 // Author:
   5 //
   6 //       Jordi Mas i Hernàndez (jmas@softcatala.org>
   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
  15 namespace MonoTests.System.Drawing{
  16
  17         [TestFixture]
  18         public class BitMapTest : Assertion {
  19
  20                 [TearDown]
  21                 public void Clean() {}
  22
  23                 [SetUp]
  24                 public void GetReady()
  25                 {
  26
  27                 }
  28
  29                 //[Test]
  30                 public void TestPixels()
  31                 {
  32                         // Tests GetSetPixel/SetPixel
  33                         Bitmap bmp= new Bitmap(100,100, PixelFormat.Format32bppRgb);
  34                         bmp.SetPixel(0,0,Color.FromArgb(255,128,128,128));
  35                         Color color = bmp.GetPixel(0,0);
  36
  37                         AssertEquals (Color.FromArgb(255,128,128,128), color);
  38
  39                         bmp.SetPixel(99,99,Color.FromArgb(255,255,0,155));
  40                         Color color2 = bmp.GetPixel(99,99);
  41                         AssertEquals (Color.FromArgb(255,255,0,155), color2);
  42                 }
  43
  44                 /* Get the right directory depending on the runtime*/
  45                 internal string getSubDir()
  46                 {
  47                         string sRslt;
  48
  49                         if (Environment.GetEnvironmentVariable("MSNet")==null)
  50                                 sRslt = "mono/";
  51                         else
  52                                 sRslt = "MSNet/";
  53
  54                         return sRslt;
  55                 }
  56
  57                 [Test]
  58                 public void BitmapLoadAndSave()
  59                 {
  60                         string sOutFile = getSubDir() + "linerect.bmp";
  61
  62                         // Save
  63                         Bitmap  bmp = new Bitmap(100,100, PixelFormat.Format32bppRgb);
  64                         Graphics gr = Graphics.FromImage(bmp);
  65
  66                         Pen p = new Pen(Color.Red, 2);
  67                         gr.DrawLine(p, 10.0F, 10.0F, 90.0F, 90.0F);
  68                         gr.DrawRectangle(p, 10.0F, 10.0F, 80.0F, 80.0F);
  69                         p.Dispose();
  70                         bmp.Save(sOutFile, ImageFormat.Bmp);
  71                         gr.Dispose();
  72                         bmp.Dispose();
  73
  74                         // Load
  75                         Bitmap  bmpLoad = new Bitmap(sOutFile);
  76                         if( bmpLoad == null)
  77                                 Console.WriteLine("Unable to load "+ sOutFile);
  78
  79                         Color color = bmpLoad.GetPixel(10,10);
  80
  81                         Console.WriteLine("Color "+ color);
  82                         AssertEquals (Color.FromArgb(255,255,0,0), color);
  83                 }
  84
  85                 [Test]
  86                 public void MakeTransparent()
  87                 {
  88                         string sInFile = "bitmaps/maketransparent.bmp";
  89                         string sOutFile =  getSubDir() + "transparent.bmp";
  90
  91                         Bitmap  bmp = new Bitmap(sInFile);
  92                         Console.WriteLine("Bitmap loaded OK", bmp != null);
  93
  94                         bmp.MakeTransparent();
  95                         bmp.Save(sOutFile);
  96
  97                         Color color = bmp.GetPixel(1,1);
  98                         AssertEquals (Color.Black.R, color.R);
  99                         AssertEquals (Color.Black.G, color.G);
 100                         AssertEquals (Color.Black.B, color.B);
 101                 }
 102
 103                 [Test]
 104                 public void Clone ()
 105                 {
 106                         string sInFile = "bitmaps/almogaver24bits.bmp";
 107                         string sOutFile =  getSubDir() + "clone24.bmp";
 108
 109                         Rectangle rect = new Rectangle(0,0,50,50);
 110                         Bitmap  bmp = new Bitmap(sInFile);
 111
 112                         Bitmap bmpNew = bmp.Clone (rect, PixelFormat.Format32bppArgb);
 113                         bmpNew.Save(sOutFile);
 114
 115                         Color colororg0 = bmp.GetPixel(0,0);
 116                         Color colororg50 = bmp.GetPixel(49,49);
 117                         Color colornew0 = bmpNew.GetPixel(0,0);
 118                         Color colornew50 = bmpNew.GetPixel(49,49);
 119
 120                         AssertEquals (colororg0, colornew0);
 121                         AssertEquals (colororg50, colornew50);
 122                 }
 123
 124         }
 125 }