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

   1 //
   2 // Direct GDI+ API unit tests
   3 //
   4 // Authors:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System;
  30 using System.Drawing;
  31 using System.Drawing.Drawing2D;
  32 using System.Drawing.Imaging;
  33 using System.Runtime.InteropServices;
  34 using NUnit.Framework;
  35
  36 namespace MonoTests.System.Drawing {
  37
  38         // copied from Mono's System.Drawing.dll gdiEnums.cs
  39         internal enum Status {
  40                 Ok = 0,
  41                 GenericError = 1,
  42                 InvalidParameter = 2,
  43                 OutOfMemory = 3,
  44                 ObjectBusy = 4,
  45                 InsufficientBuffer = 5,
  46                 NotImplemented = 6,
  47                 Win32Error = 7,
  48                 WrongState = 8,
  49                 Aborted = 9,
  50                 FileNotFound = 10,
  51                 ValueOverflow = 11,
  52                 AccessDenied = 12,
  53                 UnknownImageFormat = 13,
  54                 FontFamilyNotFound = 14,
  55                 FontStyleNotFound = 15,
  56                 NotTrueTypeFont = 16,
  57                 UnsupportedGdiplusVersion = 17,
  58                 GdiplusNotInitialized = 18,
  59                 PropertyNotFound = 19,
  60                 PropertyNotSupported = 20,
  61                 ProfileNotFound = 21
  62         }
  63
  64         [TestFixture]
  65         public class GDIPlusTest {
  66
  67                 // FontFamily
  68
  69                 [DllImport ("gdiplus.dll", CharSet=CharSet.Auto)]
  70                 internal static extern Status GdipCreateFontFamilyFromName (
  71                         [MarshalAs (UnmanagedType.LPWStr)] string fName, IntPtr collection, out IntPtr fontFamily);
  72
  73                 [DllImport ("gdiplus.dll")]
  74                 internal static extern Status GdipGetGenericFontFamilySerif (out IntPtr fontFamily);
  75
  76                 [DllImport ("gdiplus.dll")]
  77                 internal static extern Status GdipDeleteFontFamily (IntPtr fontfamily);
  78
  79                 [Test]
  80                 public void DeleteFontFamily ()
  81                 {
  82                         // invalid image pointer (null)
  83                         Assert.AreEqual (Status.InvalidParameter, GdipDeleteFontFamily (IntPtr.Zero), "null");
  84
  85                         IntPtr font_family;
  86                         GdipCreateFontFamilyFromName ("Arial", IntPtr.Zero, out font_family);
  87                         Assert.IsTrue (font_family != IntPtr.Zero, "GdipCreateFontFamilyFromName");
  88                         Assert.AreEqual (Status.Ok, GdipDeleteFontFamily (font_family), "first");
  89                 }
  90
  91                 [Test]
  92                 [Category ("NotWorking")]
  93                 public void DeleteFontFamily_DoubleDispose ()
  94                 {
  95                         IntPtr font_family;
  96                         GdipGetGenericFontFamilySerif (out font_family);
  97                         // first dispose
  98                         Assert.AreEqual (Status.Ok, GdipDeleteFontFamily (font_family), "first");
  99                         // second dispose
 100                         Assert.AreEqual (Status.Ok, GdipDeleteFontFamily (font_family), "second");
 101                 }
 102
 103                 // Bitmap
 104
 105                 [DllImport ("gdiplus.dll")]
 106                 internal static extern Status GdipCreateBitmapFromScan0 (int width, int height, int stride, PixelFormat format, IntPtr scan0, out IntPtr bmp);
 107
 108                 [Test]
 109                 public void CreateBitmapFromScan0 ()
 110                 {
 111                         IntPtr bmp;
 112                         Assert.AreEqual (Status.InvalidParameter, GdipCreateBitmapFromScan0 (-1, 10, 10, PixelFormat.Format32bppArgb, IntPtr.Zero, out bmp), "negative width");
 113                 }
 114
 115                 // Brush
 116
 117                 [DllImport ("gdiplus.dll")]
 118                 static internal extern Status GdipDeleteBrush (IntPtr brush);
 119
 120                 [Test]
 121                 public void DeleteBrush ()
 122                 {
 123                         Assert.AreEqual (Status.InvalidParameter, GdipDeleteBrush (IntPtr.Zero), "GdipDeleteBrush");
 124                 }
 125
 126                 // GraphicsPath
 127
 128                 [DllImport ("gdiplus.dll")]
 129                 internal static extern Status GdipCreatePath (FillMode brushMode, out IntPtr path);
 130
 131                 [DllImport ("gdiplus.dll")]
 132                 internal static extern Status GdipGetPointCount (IntPtr path, out int count);
 133
 134                 [DllImport ("gdiplus.dll")]
 135                 internal static extern Status GdipGetPathPoints (IntPtr path, [Out] PointF[] points, int count);
 136
 137                 [DllImport ("gdiplus.dll")]
 138                 internal static extern Status GdipGetPathTypes (IntPtr path, [Out] byte[] types, int count);
 139
 140                 [Test]
 141                 public void GetPointCount_Zero ()
 142                 {
 143                         IntPtr path;
 144                         Assert.AreEqual (Status.Ok, GdipCreatePath (FillMode.Alternate, out path), "GdipCreatePath");
 145                         Assert.IsTrue (path != IntPtr.Zero, "Handle");
 146
 147                         int count;
 148                         Assert.AreEqual (Status.Ok, GdipGetPointCount (path, out count), "GdipGetPointCount");
 149                         Assert.AreEqual (0, count, "Count");
 150
 151                         PointF[] points = new PointF[count];
 152                         Assert.AreEqual (Status.InvalidParameter, GdipGetPathPoints (path, points, count), "GdipGetPathPoints");
 153                         // can't get the points if the count is zero!
 154
 155                         byte[] types = new byte[count];
 156                         Assert.AreEqual (Status.InvalidParameter, GdipGetPathTypes (path, types, count), "GdipGetPathTypes");
 157                         // can't get the types if the count is zero!
 158                 }
 159
 160                 // Image
 161
 162                 [DllImport ("gdiplus.dll")]
 163                 internal static extern Status GdipDisposeImage (IntPtr image);
 164
 165                 [Test]
 166                 public void DisposeImage ()
 167                 {
 168                         // invalid image pointer (null)
 169                         Assert.AreEqual (Status.InvalidParameter, GdipDisposeImage (IntPtr.Zero), "null");
 170
 171                         IntPtr image;
 172                         GdipCreateBitmapFromScan0 (10, 10, 0, PixelFormat.Format32bppArgb, IntPtr.Zero, out image);
 173                         Assert.AreEqual (Status.Ok, GdipDisposeImage (image), "first");
 174                 }
 175
 176                 [Test]
 177                 [Category ("NotWorking")]
 178                 public void DisposeImage_Dual ()
 179                 {
 180                         IntPtr image;
 181                         GdipCreateBitmapFromScan0 (10, 10, 0, PixelFormat.Format32bppArgb, IntPtr.Zero, out image);
 182                         // first dispose
 183                         Assert.AreEqual (Status.Ok, GdipDisposeImage (image), "first");
 184                         // second dispose
 185                         Assert.AreEqual (Status.ObjectBusy, GdipDisposeImage (image), "second");
 186                 }
 187
 188
 189                 [DllImport ("gdiplus.dll")]
 190                 internal static extern Status GdipGetImageThumbnail (IntPtr image, uint width, uint height, out IntPtr thumbImage, IntPtr callback, IntPtr callBackData);
 191
 192                 [Test]
 193                 [Category ("NotWorking")] // libgdiplus doesn't implement GdipGetImageThumbnail (it is done inside S.D)
 194                 public void GetImageThumbnail ()
 195                 {
 196                         IntPtr ptr;
 197
 198                         // invalid image pointer (null)
 199                         Assert.AreEqual (Status.InvalidParameter, GdipGetImageThumbnail (IntPtr.Zero, 10, 10, out ptr, IntPtr.Zero, IntPtr.Zero));
 200
 201                         IntPtr image;
 202                         GdipCreateBitmapFromScan0 (10, 10, 0, PixelFormat.Format32bppArgb, IntPtr.Zero, out image);
 203                         try {
 204                                 // invalid width (0)
 205                                 Assert.AreEqual (Status.OutOfMemory, GdipGetImageThumbnail (image, 0, 10, out ptr, IntPtr.Zero, IntPtr.Zero));
 206                                 // invalid width (negative)
 207                                 Assert.AreEqual (Status.OutOfMemory, GdipGetImageThumbnail (image, 0x8000000, 10, out ptr, IntPtr.Zero, IntPtr.Zero));
 208                                 // invalid height (0)
 209                                 Assert.AreEqual (Status.OutOfMemory, GdipGetImageThumbnail (image, 10, 0, out ptr, IntPtr.Zero, IntPtr.Zero));
 210                                 // invalid height (negative)
 211                                 Assert.AreEqual (Status.OutOfMemory, GdipGetImageThumbnail (image, 10, 0x8000000, out ptr, IntPtr.Zero, IntPtr.Zero));
 212                         }
 213                         finally {
 214                                 GdipDisposeImage (image);
 215                         }
 216                 }
 217
 218                 // PathGradientBrush
 219
 220                 [DllImport ("gdiplus.dll")]
 221                 static internal extern Status GdipCreatePathGradient (PointF[] points, int count, WrapMode wrapMode, out IntPtr brush);
 222
 223                 [DllImport ("gdiplus.dll")]
 224                 static internal extern Status GdipGetPathGradientBlendCount (IntPtr brush, out int count);
 225
 226                 [DllImport ("gdiplus.dll")]
 227                 static internal extern Status GdipGetPathGradientPresetBlend (IntPtr brush, int[] blend, float[] positions, int count);
 228
 229
 230                 [Test]
 231                 public void CreatePathGradient ()
 232                 {
 233                         PointF[] points = null;
 234                         IntPtr brush;
 235                         Assert.AreEqual (Status.OutOfMemory, GdipCreatePathGradient (points, 0, WrapMode.Clamp, out brush), "null");
 236
 237                         points = new PointF [0];
 238                         Assert.AreEqual (Status.OutOfMemory, GdipCreatePathGradient (points, 0, WrapMode.Clamp, out brush), "empty");
 239
 240                         points = new PointF[1];
 241                         Assert.AreEqual (Status.OutOfMemory, GdipCreatePathGradient (points, 1, WrapMode.Clamp, out brush), "one");
 242
 243                         points = new PointF[2] { new PointF (1, 2), new PointF (20, 30) };
 244                         Assert.AreEqual (Status.Ok, GdipCreatePathGradient (points, 2, WrapMode.Clamp, out brush), "two");
 245
 246                         int count;
 247                         Assert.AreEqual (Status.Ok, GdipGetPathGradientBlendCount (brush, out count), "GdipGetPathGradientBlendCount");
 248                         Assert.AreEqual (1, count, "blend count");
 249
 250                         int[] colors = new int[count];
 251                         float[] positions = new float[count];
 252                         Assert.AreEqual (Status.InvalidParameter, GdipGetPathGradientPresetBlend (brush, colors, positions, count), "GdipGetPathGradientBlend");
 253                         // can't call that for 1 count!
 254
 255                         Assert.AreEqual (Status.Ok, GdipDeleteBrush (brush), "GdipDeleteBrush");
 256                 }
 257
 258
 259                 // Region
 260
 261                 [DllImport ("gdiplus.dll")]
 262                 static internal extern Status GdipCreateRegionRgnData (byte[] data, int size, out IntPtr region);
 263
 264                 [Test]
 265                 public void CreateRegionRgnData ()
 266                 {
 267                         IntPtr region;
 268                         Assert.AreEqual (Status.InvalidParameter, GdipCreateRegionRgnData (null, 0, out region));
 269
 270                         byte[] data = new byte[0];
 271                         Assert.AreEqual (Status.GenericError, GdipCreateRegionRgnData (data, 0, out region));
 272                 }
 273         }
 274 }