private byte[] TransformImage(TransformationsViewModel viewModel)
{
var transformations = LoadImageTransformations(viewModel);
Bitmap bmp = null;
using (MemoryStream stm = new MemoryStream())
{
viewModel.File.CopyTo(stm);
bmp = ImageTransformer.Apply(stm, transformations);
// clear memory stream
stm.Position = 0;
stm.SetLength(0);
bmp.Save(stm, System.Drawing.Imaging.ImageFormat.Png);
return(stm.ToArray());
}
}
private void ApplyButton_Click(object sender, EventArgs e)
{
if (_file == null)
{
return;
}
List <IImageTransformation> transformations = new List <IImageTransformation>(4);
if (this.AngleNumericUpDown.Value != 0)
{
transformations.Add(
new RotationImageTransformation((double)this.AngleNumericUpDown.Value));
}
if (this.StretchHorizNumericUpDown.Value != 0 || this.StretchVertNumericUpDown.Value != 0)
{
transformations.Add(
new StretchImageTransformation(
(double)this.StretchHorizNumericUpDown.Value / 100,
(double)this.StretchVertNumericUpDown.Value / 100));
}
if (this.FlipHorizontalCheckBox.Checked || this.FlipVerticalCheckBox.Checked)
{
transformations.Add(
new FlipImageTransformation(this.FlipHorizontalCheckBox.Checked, this.FlipVerticalCheckBox.Checked));
}
if (new decimal[]
{
this.DensityAlphaNumericUpDown.Value,
this.DensityRedNumericUpDown.Value,
this.DensityGreenNumericUpDown.Value,
this.DensityBlueNumericUpDown.Value
}.Any(a => a != 100))
{
transformations.Add(
new DensityImageTransformation(
(double)this.DensityAlphaNumericUpDown.Value / 100,
(double)this.DensityRedNumericUpDown.Value / 100,
(double)this.DensityGreenNumericUpDown.Value / 100,
(double)this.DensityBlueNumericUpDown.Value / 100
));
}
DisposePreviousImage();
StartStopwatch();
if (transformations.Any())
{
var bmp = ImageTransformer.Apply(_file, transformations.ToArray());
this.ImagePictureBox.Image = bmp;
}
else
{
LoadImageFile();
}
StopStopwatch();
}
