//методы
public static QueryResult<byte[]> FillSize(byte[] inputBytes, ImageTargetParameters parameters)
{
bool hasExceptions = false;
MemoryStream outputStream = new MemoryStream();
try
{
MemoryStream inputStream = new MemoryStream(inputBytes);
using (Image inputImage = Image.FromStream(inputStream))
{
ImageNewSizes sizes = new ImageNewSizes(inputImage.Width, inputImage.Height);
if (sizes.IsEmpty)
{
return new QueryResult<byte[]>(null, true);
}
PickResizeType(parameters, sizes);
if (sizes.IsEmpty)
{
return new QueryResult<byte[]>(null, true);
}
SaveToStream(inputImage, outputStream, parameters, sizes);
}
}
catch(Exception exception)
{
hasExceptions = true;
}
return new QueryResult<byte[]>(outputStream.ToArray(), hasExceptions);
}
private static void SaveToStream(Image inputImage, Stream outputStream
, ImageTargetParameters parameters, ImageNewSizes sizes)
{
using (Bitmap newImage = new Bitmap(sizes.Width, sizes.Height))
{
using (Graphics g = Graphics.FromImage(newImage))
{
g.SmoothingMode = SmoothingMode.HighSpeed;
g.InterpolationMode = InterpolationMode.Bilinear;
g.PixelOffsetMode = PixelOffsetMode.HighSpeed;
g.Clear(Color.White);
if (parameters.RoundCorners)
{
GraphicsPath roundPath = CreateRoundPath(sizes.DrawingRegion, 6);
g.SetClip(roundPath);
}
g.DrawImage(inputImage,sizes.DrawingRegion, sizes.CropRegion, GraphicsUnit.Pixel);
}
newImage.Save(outputStream, parameters.TargetFormat);
}
}
private static void PickResizeType(ImageTargetParameters parameters, ImageNewSizes sizes)
{
if (parameters.ResizeType == ImageResizeType.FitRatio)
{
LowerAllProportionally(parameters.Width, parameters.Height, sizes);
RaiseToLowestProportionally(parameters.Width, parameters.Height, sizes);
}
else if (parameters.ResizeType == ImageResizeType.FitAndFill)
{
LowerAllProportionally(parameters.Width, parameters.Height, sizes);
RaiseToLowestProportionally(parameters.Width, parameters.Height, sizes);
AddSpaceOnBorders(parameters.Width, parameters.Height, sizes);
}
else if (parameters.ResizeType == ImageResizeType.FitHeightAndCropWidth)
{
LowerAllProportionally(parameters.Width, parameters.Height, sizes);
RaiseHeightProportionally(parameters.Height, sizes);
CutAll(parameters.Width, parameters.Height, sizes);
}
else if (parameters.ResizeType == ImageResizeType.FitWidthAndCropHeight)
{
LowerAllProportionally(parameters.Width, parameters.Height, sizes);
RaiseWidthProportionally(parameters.Width, sizes);
CutAll(parameters.Width, parameters.Height, sizes);
}
else if (parameters.ResizeType == ImageResizeType.FitWidthAndSqueezeHeight)
{
LowerAllProportionally(parameters.Width, parameters.Height, sizes);
RaiseWidthProportionally(parameters.Width, sizes);
FillHeightIfBigger(parameters.Height, sizes);
}
}