public void ComputeTiles_AllLevelsOfSquareLogo()
{
var tester = new Action <int, int, int> ((inputSide, expectedTileCount, expectedFirstTileSize) =>
{
var tiles = DeepZoomImage.ComputeTiles(new Size(inputSide, inputSide), 254, 1);
var e = tiles.GetEnumerator();
e.MoveNext();
var firstTile = e.Current;
var actualRectangle = firstTile.First;
var expectedRectangle = new Rectangle(0, 0, expectedFirstTileSize, expectedFirstTileSize);
Assert.AreEqual(expectedRectangle, actualRectangle);
var actualTileCount = 1;
while (e.MoveNext())
{
actualTileCount++;
}
Assert.AreEqual(expectedTileCount, actualTileCount);
}
);
tester(700, 9, 255);
tester(350, 4, 255);
tester(175, 1, 175);
tester(88, 1, 88);
tester(44, 1, 44);
tester(22, 1, 22);
tester(11, 1, 11);
tester(6, 1, 6);
tester(3, 1, 3);
tester(2, 1, 2);
tester(1, 1, 1);
}
private static void CheckRectangleBySize(int width, int height)
{
var expected = new System.Windows.Rect(new System.Windows.Size(width, height));
var actual = DeepZoomImage.CreateRectangle(new Size(width, height));
AssertAreEqual(expected, actual);
}
public void ComputeTiles_SizeOfTile()
{
var size = new Size(254, 254);
var actual = DeepZoomImage.ComputeTiles(size, 254, 1);
var expected = new[] { new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(size), "0_0") };
EnumerableExtensions.EnumerateSame(expected, actual);
}
private static Size TestComputeLevelSize(Size itemImageSize, int levelNumber)
{
var settings = new Settings
{
ItemImageSize = itemImageSize,
};
var dzi = new DeepZoomImage(settings);
return(dzi.ComputeLevelSize(levelNumber));
}
private static IEnumerable <Pair <Rectangle, string> > TestComputeTiles(Size levelSize, int tileSize, int tileOverlap)
{
var settings = new Settings
{
TileSize = tileSize,
TileOverlap = tileOverlap,
};
var dzi = new DeepZoomImage(settings);
return(dzi.ComputeTiles(levelSize));
}
public void Resize_Half()
{
using (var inputStream = AssemblyExtensions.OpenScopedResourceStream <DeepZoomImageTest> ("1200x1500.png"))
using (var sourceBitmap = new Bitmap(inputStream))
using (var targetBitmap = DeepZoomImage.Resize(sourceBitmap, 600, 750))
using (var actualStream = new MemoryStream())
{
targetBitmap.Save(actualStream, ImageFormat.Png);
ProgramTest.AssertStreamsAreEqual <DeepZoomImageTest> ("600x750.png", actualStream);
}
}
private static void CheckRectangleWithTwoPoints(int x1, int y1, int x2, int y2)
{
// The constructor below is documented as:
// "Initializes a new instance of the Rect structure that is
// exactly large enough to contain the two specified points."
var expected = new System.Windows.Rect
(
new System.Windows.Point(x1, y1),
new System.Windows.Point(x2 + 1, y2 + 1)
);
var actual = DeepZoomImage.CreateRectangle(new Point(x1, y1), new Point(x2, y2));
AssertAreEqual(expected, actual);
}
public void ComputeTiles_TwoPixelsBiggerThanTileWithOverlapOfTwo()
{
var size = new Size(256, 256);
var actual = DeepZoomImage.ComputeTiles(size, 254, 2);
var expected = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(255, 255)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 252), new Point(255, 255)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(252, 0), new Point(255, 255)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(252, 252), new Point(255, 255)), "1_1"),
};
EnumerableExtensions.EnumerateSame(expected, actual);
}
public void ComputeTiles_OnePixelBiggerThanTile()
{
var size = new Size(255, 255);
var actual = DeepZoomImage.ComputeTiles(size, 254, 1);
var expected = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(254, 254)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 253), new Point(254, 254)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 0), new Point(254, 254)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 253), new Point(254, 254)), "1_1"),
};
EnumerableExtensions.EnumerateSame(expected, actual);
}
public void ComputeTiles_BiggerThanTileWithOverlapOfThree()
{
var size = new Size(300, 375);
var actual = DeepZoomImage.ComputeTiles(size, 254, 3);
var expected = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(256, 256)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 251), new Point(256, 374)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(251, 0), new Point(299, 256)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(251, 251), new Point(299, 374)), "1_1"),
};
EnumerableExtensions.EnumerateSame(expected, actual);
}
public void ComputeLevelSize_SquareLogo()
{
Assert.AreEqual(new Size(700, 700), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 11));
Assert.AreEqual(new Size(700, 700), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 10));
Assert.AreEqual(new Size(350, 350), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 9));
Assert.AreEqual(new Size(175, 175), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 8));
Assert.AreEqual(new Size(88, 88), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 7));
Assert.AreEqual(new Size(44, 44), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 6));
Assert.AreEqual(new Size(22, 22), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 5));
Assert.AreEqual(new Size(11, 11), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 4));
Assert.AreEqual(new Size(6, 6), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 3));
Assert.AreEqual(new Size(3, 3), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 2));
Assert.AreEqual(new Size(2, 2), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 1));
Assert.AreEqual(new Size(1, 1), DeepZoomImage.ComputeLevelSize(SquareLogoSize, 0));
}
public void ComputeLevelSize_PowerOfTwo()
{
Assert.AreEqual(new Size(1024, 512), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 11));
Assert.AreEqual(new Size(1024, 512), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 10));
Assert.AreEqual(new Size(512, 256), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 9));
Assert.AreEqual(new Size(256, 128), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 8));
Assert.AreEqual(new Size(128, 64), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 7));
Assert.AreEqual(new Size(64, 32), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 6));
Assert.AreEqual(new Size(32, 16), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 5));
Assert.AreEqual(new Size(16, 8), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 4));
Assert.AreEqual(new Size(8, 4), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 3));
Assert.AreEqual(new Size(4, 2), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 2));
Assert.AreEqual(new Size(2, 1), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 1));
Assert.AreEqual(new Size(1, 1), DeepZoomImage.ComputeLevelSize(PowerOfTwoSize, 0));
}
public void ComputeLevelSize_Typical()
{
Assert.AreEqual(new Size(1200, 1500), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 12));
Assert.AreEqual(new Size(1200, 1500), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 11));
Assert.AreEqual(new Size(600, 750), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 10));
Assert.AreEqual(new Size(300, 375), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 9));
Assert.AreEqual(new Size(150, 188), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 8));
Assert.AreEqual(new Size(75, 94), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 7));
Assert.AreEqual(new Size(38, 47), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 6));
Assert.AreEqual(new Size(19, 24), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 5));
Assert.AreEqual(new Size(10, 12), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 4));
Assert.AreEqual(new Size(5, 6), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 3));
Assert.AreEqual(new Size(3, 3), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 2));
Assert.AreEqual(new Size(2, 2), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 1));
Assert.AreEqual(new Size(1, 1), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 0));
}
public void Slice_Typical()
{
var tiles = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(254, 254)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 253), new Point(254, 374)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 0), new Point(299, 254)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 253), new Point(299, 374)), "1_1"),
};
var streams = new Dictionary <string, MemoryStream>
{
{ "0_0", new MemoryStream() },
{ "0_1", new MemoryStream() },
{ "1_0", new MemoryStream() },
{ "1_1", new MemoryStream() },
};
var settings = new Settings {
PostImageEncoding = ImageFormat.Png,
};
var dzi = new DeepZoomImage(settings);
try
{
using (var inputStream = AssemblyExtensions.OpenScopedResourceStream <DeepZoomImageTest> ("300x375.png"))
using (var sourceBitmap = new Bitmap(inputStream))
{
dzi.Slice(sourceBitmap, tiles, tilename => streams[tilename]);
}
foreach (var keyValuePair in streams)
{
var expectedResourceFileName = keyValuePair.Key + ".png";
var actualStream = keyValuePair.Value;
ProgramTest.AssertStreamsAreEqual <DeepZoomImageTest> (expectedResourceFileName, actualStream);
}
}
finally
{
foreach (var stream in streams.Values)
{
stream.Close();
stream.Dispose();
}
}
}
public void ComputeTiles_OriginalSize()
{
var size = new Size(1200, 1500);
var actual = DeepZoomImage.ComputeTiles(size, 254, 1);
var expected = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(254, 254)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 253), new Point(254, 508)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 507), new Point(254, 762)), "0_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 761), new Point(254, 1016)), "0_3"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 1015), new Point(254, 1270)), "0_4"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 1269), new Point(254, 1499)), "0_5"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 0), new Point(508, 254)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 253), new Point(508, 508)), "1_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 507), new Point(508, 762)), "1_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 761), new Point(508, 1016)), "1_3"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 1015), new Point(508, 1270)), "1_4"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 1269), new Point(508, 1499)), "1_5"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 0), new Point(762, 254)), "2_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 253), new Point(762, 508)), "2_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 507), new Point(762, 762)), "2_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 761), new Point(762, 1016)), "2_3"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 1015), new Point(762, 1270)), "2_4"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 1269), new Point(762, 1499)), "2_5"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 0), new Point(1016, 254)), "3_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 253), new Point(1016, 508)), "3_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 507), new Point(1016, 762)), "3_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 761), new Point(1016, 1016)), "3_3"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 1015), new Point(1016, 1270)), "3_4"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(761, 1269), new Point(1016, 1499)), "3_5"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 0), new Point(1199, 254)), "4_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 253), new Point(1199, 508)), "4_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 507), new Point(1199, 762)), "4_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 761), new Point(1199, 1016)), "4_3"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 1015), new Point(1199, 1270)), "4_4"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(1015, 1269), new Point(1199, 1499)), "4_5"),
};
EnumerableExtensions.EnumerateSame(expected, actual);
}
public void ComputeTiles_BigWithDoubleOverlap()
{
var size = new Size(700, 700);
var actual = DeepZoomImage.ComputeTiles(size, 254, 1);
var expected = new[]
{
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 0), new Point(254, 254)), "0_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 253), new Point(254, 508)), "0_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(0, 507), new Point(254, 699)), "0_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 0), new Point(508, 254)), "1_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 253), new Point(508, 508)), "1_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(253, 507), new Point(508, 699)), "1_2"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 0), new Point(699, 254)), "2_0"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 253), new Point(699, 508)), "2_1"),
new Pair <Rectangle, string>(DeepZoomImage.CreateRectangle(new Point(507, 507), new Point(699, 699)), "2_2"),
};
EnumerableExtensions.EnumerateSame(expected, actual);
}
public void Slice_SquareLogo()
{
Assert.AreEqual(10, DeepZoomImage.DetermineMaximumLevel(SquareLogoSize));
using (var sourceBitmap = new Bitmap(SquareLogoSize.Width, SquareLogoSize.Height))
{
var tester = new Action <int, IEnumerable <Size> > ((level, expectedSliceSizes) =>
{
var levelSize = DeepZoomImage.ComputeLevelSize(SquareLogoSize, level);
var tiles = DeepZoomImage.ComputeTiles(levelSize, 254, 1);
var slices = DeepZoomImage.Slice(sourceBitmap, tiles);
var actualSliceSizes = slices.Map(pair => pair.First.Size);
EnumerableExtensions.EnumerateSame(expectedSliceSizes, actualSliceSizes);
}
);
tester(10, new[]
{
new Size(255, 255), new Size(255, 256), new Size(255, 193),
new Size(256, 255), new Size(256, 256), new Size(256, 193),
new Size(193, 255), new Size(193, 256), new Size(193, 193),
}
);
tester(9, new[]
{
new Size(255, 255), new Size(255, 97),
new Size(97, 255), new Size(97, 97),
}
);
tester(8, new[] { new Size(175, 175) });
tester(7, new[] { new Size(88, 88) });
tester(6, new[] { new Size(44, 44) });
tester(5, new[] { new Size(22, 22) });
tester(4, new[] { new Size(11, 11) });
tester(3, new[] { new Size(6, 6) });
tester(2, new[] { new Size(3, 3) });
tester(1, new[] { new Size(2, 2) });
tester(0, new[] { new Size(1, 1) });
}
}
private static Size TestComputeLevelSize(Size itemImageSize, int levelNumber)
{
var settings = new Settings
{
ItemImageSize = itemImageSize,
};
var dzi = new DeepZoomImage (settings);
return dzi.ComputeLevelSize (levelNumber);
}
public void Slice_Typical ()
{
var tiles = new[]
{
new Pair<Rectangle, string>(DeepZoomImage.CreateRectangle (new Point( 0, 0), new Point(254, 254)), "0_0"),
new Pair<Rectangle, string>(DeepZoomImage.CreateRectangle (new Point( 0, 253), new Point(254, 374)), "0_1"),
new Pair<Rectangle, string>(DeepZoomImage.CreateRectangle (new Point(253, 0), new Point(299, 254)), "1_0"),
new Pair<Rectangle, string>(DeepZoomImage.CreateRectangle (new Point(253, 253), new Point(299, 374)), "1_1"),
};
var streams = new Dictionary<string, MemoryStream>
{
{"0_0", new MemoryStream()},
{"0_1", new MemoryStream()},
{"1_0", new MemoryStream()},
{"1_1", new MemoryStream()},
};
var settings = new Settings { PostImageEncoding = ImageFormat.Png, };
var dzi = new DeepZoomImage (settings);
try
{
using (var inputStream = AssemblyExtensions.OpenScopedResourceStream<DeepZoomImageTest> ("300x375.png"))
using (var sourceBitmap = new Bitmap (inputStream))
{
dzi.Slice (sourceBitmap, tiles, tilename => streams[tilename]);
}
foreach (var keyValuePair in streams)
{
var expectedResourceFileName = keyValuePair.Key + ".png";
var actualStream = keyValuePair.Value;
ProgramTest.AssertStreamsAreEqual<DeepZoomImageTest> (expectedResourceFileName, actualStream);
}
}
finally
{
foreach (var stream in streams.Values)
{
stream.Close ();
stream.Dispose ();
}
}
}
private static IEnumerable<Pair<Rectangle, string>> TestComputeTiles (Size levelSize, int tileSize, int tileOverlap)
{
var settings = new Settings
{
TileSize = tileSize,
TileOverlap = tileOverlap,
};
var dzi = new DeepZoomImage (settings);
return dzi.ComputeTiles (levelSize);
}
public void ComputeLevelSize_Base()
{
Assert.AreEqual(new Size(1, 1), DeepZoomImage.ComputeLevelSize(PortraitImageSize, 0));
}
public void DetermineMaximumLevel_Base()
{
Assert.AreEqual(11, DeepZoomImage.DetermineMaximumLevel(new Size(1200, 1500)));
Assert.AreEqual(10, DeepZoomImage.DetermineMaximumLevel(new Size(1024, 512)));
Assert.AreEqual(0, DeepZoomImage.DetermineMaximumLevel(new Size(1, 1)));
}
