public void Full_Full()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Full), new ImageSize(ImageSizeMode.Max, 1), new ImageRotation(0, false), ImageQuality.@default, ImageFormat.jpg);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX, "Expected x offset does not match calculated x offset");
Assert.AreEqual(0, result.StartY, "Expected y offset does not match calculated y offset");
Assert.AreEqual(width, result.RegionWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(height, result.RegionHeight, "Expected region height does not match calculated region height");
}
public void ExactSizeShouldEqualExactSize()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Region, 500, 500, 500, 500), new ImageSize(ImageSizeMode.Distort, 1, 500, 500), new ImageRotation(0, false), ImageQuality.@default, ImageFormat.jpg);
var result = ImageRequestInterpreter.GetInterpretedValues(request, 2000, 2000, false);
Assert.AreEqual(500, result.StartX);
Assert.AreEqual(500, result.StartY);
Assert.AreEqual(500, result.RegionWidth);
Assert.AreEqual(500, result.RegionHeight);
}
public void PercentageRegionFullSize()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.PercentageRegion, 50, 50, 50, 50), new ImageSize(ImageSizeMode.Max, 1), new ImageRotation(0, false));
var result = ImageRequestInterpreter.GetInterpretedValues(request, 2000, 2000, false);
Assert.AreEqual(1000, result.StartX);
Assert.AreEqual(1000, result.StartY);
Assert.AreEqual(1000, result.RegionWidth);
Assert.AreEqual(1000, result.RegionHeight);
}
public void Full_Expanded_Yes_size_Above_Full_Max_Height()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Full), new ImageSize(ImageSizeMode.Distort, 1, width * 2, height * 4), new ImageRotation(90, false), ImageQuality.@default, ImageFormat.jpg, int.MaxValue, 300, int.MaxValue);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, true);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth, "Expected region width does not match calculated width");
Assert.AreEqual(height, result.RegionHeight, "Expected region height does not match calculated height");
Assert.AreEqual(225, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(300, result.OutputHeight, "Expected height does not match calculated height");
}
public void Pct_region_full_No_size_Above_Full_maxWidth()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.PercentageRegion, 0, 0, 100, 100), new ImageSize(ImageSizeMode.Max, 1), new ImageRotation(0, false), ImageQuality.@default, ImageFormat.jpg, 150, int.MaxValue, int.MaxValue);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth, "Expected width does not match calculated width");
Assert.AreEqual(height, result.RegionHeight, "Expected height does not match calculated height");
Assert.AreEqual(150, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(100, result.OutputHeight, "Expected height does not match calculated height");
}
public void Full_Max_MaxWidth_MaxHeight_Exact()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Full), new ImageSize(ImageSizeMode.MaintainAspectRatio, 1, 0, 2000), new ImageRotation(0, false), ImageQuality.@default, ImageFormat.jpg, 1000, 1000, int.MaxValue);
var result = ImageRequestInterpreter.GetInterpretedValues(request, 6640, 4007, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(6640, result.RegionWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(4007, result.RegionHeight, "Expected region height does not match calculated region height");
Assert.AreEqual(1000, result.OutputWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(604, result.OutputHeight, "Expected region height does not match calculated region height");
}
public void Full_Expanded_No_size_Above_Full_Max_Width()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Full), new ImageSize(ImageSizeMode.MaintainAspectRatio, 1, width, height), new ImageRotation(90, false), ImageQuality.@default, ImageFormat.jpg, 200, int.MaxValue, int.MaxValue);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth, "Expected width does not match calculated width");
Assert.AreEqual(height, result.RegionHeight, "Expected height does not match calculated height");
Assert.AreEqual(200, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(133, result.OutputHeight, "Expected height does not match calculated height");
}
public void Full_Pct_Expanded_Yes_size_Above_Full()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Full), new ImageSize(ImageSizeMode.PercentageScaled, 2), new ImageRotation(90, false), ImageQuality.@default, ImageFormat.jpg);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, true);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth);
Assert.AreEqual(height, result.RegionHeight);
Assert.AreEqual(width * 2, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(height * 2, result.OutputHeight, "Expected height does not match calculated height");
}
public void CheckBounds_InvalidRegion()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Region, 0, 0, 0, 100),
new ImageSize(ImageSizeMode.Distort, 1, 100, 100),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
}
public void Full_Pct_Expanded_No_size_Above_Full()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Full),
new ImageSize(ImageSizeMode.PercentageScaled, 2),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth);
Assert.AreEqual(height, result.RegionHeight);
}
public void Full_Rotated_90()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Full),
new ImageSize(ImageSizeMode.Max, 1, 0, 0),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(width, result.RegionWidth);
Assert.AreEqual(height, result.RegionHeight);
}
public void Square_Width()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Square),
new ImageSize(ImageSizeMode.MaintainAspectRatio, 1, 0, 100),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(50, result.StartX, "Expected x offset does not match calculated x offset");
Assert.AreEqual(0, result.StartY, "Expected y offset does not match calculated y offset");
Assert.AreEqual(200, result.RegionWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(200, result.RegionHeight, "Expected region height does not match calculated region height");
Assert.AreEqual(100, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(100, result.OutputHeight, "Expected height does not match calculated width");
}
public void Full_Scaled()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Full),
new ImageSize(ImageSizeMode.MaintainAspectRatio, 1, 225, 100),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(0, result.StartX, "Expected x position does not match calculated x position");
Assert.AreEqual(0, result.StartY, "Expected y position does not match calculated y position");
Assert.AreEqual(width, result.RegionWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(height, result.RegionHeight, "Expected region height does not match calculated region height");
Assert.AreEqual(150, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(100, result.OutputHeight, "Expected height does not match calculated height");
}
public void Square_Width_Height_Distorted()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Square),
new ImageSize(ImageSizeMode.Distort, 1, 150, 50),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(50, result.StartX, "Expected x position does not match calculated x position");
Assert.AreEqual(0, result.StartY, "Expected y position does not match calculated y position");
Assert.AreEqual(200, result.RegionWidth, "Expected region width does not match calculated region width");
Assert.AreEqual(200, result.RegionHeight, "Expected region height does not match calculated region height");
Assert.AreEqual(150, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(50, result.OutputHeight, "Expected height does not match calculated height");
}
public void Square_Height()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Square),
new ImageSize(ImageSizeMode.MaintainAspectRatio, 1, 0, 100),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, width, height, false);
Assert.AreEqual(50, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(height, result.RegionWidth);
Assert.AreEqual(height, result.RegionHeight);
Assert.AreEqual(100, result.OutputWidth);
Assert.AreEqual(100, result.OutputHeight);
}
public void Region_And_Size()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Region, 600, 900, 100, 100),
new ImageSize(ImageSizeMode.Distort, 1, 54, 54),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, 1000, 1000, false);
Assert.AreEqual(600, result.StartX);
Assert.AreEqual(900, result.StartY);
Assert.AreEqual(100, result.RegionWidth);
Assert.AreEqual(100, result.RegionHeight);
Assert.AreEqual(54, result.OutputWidth);
Assert.AreEqual(54, result.OutputHeight);
Assert.AreEqual(0.54f, result.OutputScale);
}
public void Full_With_Specific_Size()
{
var request = new Image.Common.ImageRequest
(
"",
new ImageRegion(ImageRegionMode.Full),
new ImageSize(ImageSizeMode.Distort, 1, 744, 501),
new ImageRotation(0, false),
ImageQuality.@default,
ImageFormat.jpg
);
var result = ImageRequestInterpreter.GetInterpretedValues(request, 1000, 1000, false);
Assert.AreEqual(0, result.StartX);
Assert.AreEqual(0, result.StartY);
Assert.AreEqual(1000, result.RegionWidth);
Assert.AreEqual(1000, result.RegionHeight);
Assert.AreEqual(744, result.OutputWidth, "Expected width does not match calculated width");
Assert.AreEqual(501, result.OutputHeight, "Expected height does not match calculated height");
//Assert.AreEqual(0.54f, result.OutputScale);
}
/// <summary>
/// Calculates the region, offset and final output image size
/// </summary>
/// <param name="request"></param>
/// <param name="originalWidth">Original width (pixels) of the source image</param>
/// <param name="originalHeight">Original height (pixels) of the source image</param>
/// <param name="allowSizeAboveFull">Allow output image dimensions to exceed that of the source image, but constrained by <see cref="ImageRequest.MaxWidth"/>,<see cref="ImageRequest.MaxHeight"/>,<see cref="ImageRequest.MaxArea"/></param>
/// <returns></returns>
static public ProcessState GetInterpretedValues(ImageRequest request, int originalWidth, int originalHeight, bool allowSizeAboveFull)
{
request.CheckRequest();
ProcessState state = new ProcessState();
state.StartX = state.StartY = state.RegionHeight = state.RegionWidth = 0;
state.OutputScale = state.ImageScale = 1;
switch (request.Region.Mode)
{
case ImageRegionMode.PercentageRegion:
state.StartX = Convert.ToInt32(request.Region.X / 100 * originalWidth);
state.StartY = Convert.ToInt32(request.Region.Y / 100 * originalHeight);
state.OutputWidth = state.RegionWidth = Convert.ToInt32(request.Region.Width / 100 * originalWidth);
state.OutputHeight = state.RegionHeight = Convert.ToInt32(request.Region.Height / 100 * originalHeight);
break;
case ImageRegionMode.Region:
state.StartX = Convert.ToInt32(request.Region.X);
state.StartY = Convert.ToInt32(request.Region.Y);
state.OutputWidth = state.RegionWidth = Convert.ToInt32(request.Region.Width);
state.OutputHeight = state.RegionHeight = Convert.ToInt32(request.Region.Height);
break;
case ImageRegionMode.Square:
state.OutputWidth = state.OutputHeight = state.RegionHeight = state.RegionWidth = Math.Min(originalWidth, originalHeight);
// pick the middle of the image
state.StartX = state.RegionWidth == originalWidth ? 0 : Convert.ToInt32(Math.Round((originalWidth - originalHeight) / 2f));
state.StartY = state.RegionHeight == originalHeight ? 0 : Convert.ToInt32(Math.Round((originalHeight - originalWidth) / 2f));
break;
default:
state.OutputWidth = state.RegionWidth = originalWidth;
state.OutputHeight = state.RegionHeight = originalHeight;
break;
}
CheckBounds(state);
switch (request.Size.Mode)
{
case ImageSizeMode.Max:
case ImageSizeMode.Full:
// no changes needed as scale and OutputWidth/Height are set
break;
case ImageSizeMode.PercentageScaled:
state.OutputWidth = Convert.ToInt32(state.RegionWidth * request.Size.Percent.Value);
state.OutputHeight = Convert.ToInt32(state.RegionHeight * request.Size.Percent.Value);
state.OutputScale = request.Size.Percent.Value;
break;
case ImageSizeMode.Distort:
float scaledx, scaledy = 1f;
scaledy = request.Size.Height / (float)state.RegionHeight;
scaledx = request.Size.Width / (float)state.RegionWidth;
state.OutputWidth = Convert.ToInt32(state.RegionWidth * scaledx);
state.OutputHeight = Convert.ToInt32(state.RegionHeight * scaledy);
if (scaledx < scaledy)
{
state.OutputScale = scaledx;
}
else
{
state.OutputScale = scaledy;
}
if (request.Region.Mode != ImageRegionMode.Full)
{
if (scaledx < scaledy)
{
state.ImageScale = scaledx;
}
else
{
state.ImageScale = scaledy;
}
}
break;
case ImageSizeMode.MaintainAspectRatio:
if (request.Size.Width != 0 && request.Size.Height == 0)
{
var scale = request.Size.Width / (float)state.RegionWidth;
state.OutputWidth = Convert.ToInt32(state.RegionWidth * scale);
state.OutputHeight = Convert.ToInt32(state.RegionHeight * scale);
state.OutputScale = scale;
}
else if (request.Size.Width == 0 && request.Size.Height != 0)
{
var scale = request.Size.Height / (float)state.RegionHeight;
state.OutputWidth = Convert.ToInt32(state.RegionWidth * scale);
state.OutputHeight = Convert.ToInt32(state.RegionHeight * scale);
state.OutputScale = scale;
}
else
{
var originalScale = originalWidth / (float)originalHeight;
var scale = Math.Min((request.Size.Height / (float)state.RegionHeight), (request.Size.Width / (float)state.RegionWidth));
state.OutputWidth = Convert.ToInt32(state.RegionWidth * scale);
state.OutputHeight = Convert.ToInt32(state.RegionHeight * scale);
state.OutputScale = scale;
if (request.Region.Mode != ImageRegionMode.Full)
{
state.ImageScale = scale;
}
}
break;
}
// final bounds reduction
float max_scale = 1f;
(state.OutputWidth, state.OutputHeight, max_scale)
= ScaleOutput(request.MaxWidth, request.MaxHeight, state.OutputWidth, state.OutputHeight, allowSizeAboveFull);
state.OutputScale = Math.Min(max_scale, state.ImageScale);
state.CheckBounds();
return(state);
}
public void RegionShouldNotAllowUnsigned()
{
var request = new Image.Common.ImageRequest("", new ImageRegion(ImageRegionMode.Region, -1, 0, 500, 500), new ImageSize(ImageSizeMode.Max, 1), new ImageRotation(0, false));
var result = ImageRequestInterpreter.GetInterpretedValues(request, 2000, 2000, false);
}
