/// <summary>
/// Loads image from a file.
/// </summary>
/// <param name="fileName">Name of file with image.</param>
/// <returns><see cref="CodedImage"/> instance with pixels data initialized from loaded file.</returns>
protected override CodedImage LoadImageCore(string fileName)
{
var bitmap = new Bitmap(fileName);
var indexedImage = IndexedImageExtensions.FromBitmap(bitmap);
var codedImage = CodedImage.FromIndexedImage(indexedImage);
return(codedImage);
}
public void TestFromIndexedImage()
{
var indexedImage = new IndexedImage {
Size = new Size(2, 3)
};
var codedImage = CodedImage.FromIndexedImage(indexedImage);
Assert.AreEqual(indexedImage.Size, codedImage.Size);
int[] indexedPixels, codedPixels;
using (indexedImage.LockPixels(out indexedPixels))
using (codedImage.LockPixels(out codedPixels))
{
Assert.AreSame(indexedPixels, codedPixels, "Should use same pixels array");
}
}
void buttonSave_Click(object sender, EventArgs e)
{
var bitmap = pictureBox1.Image as Bitmap;
if (bitmap == null)
{
return;
}
using (var saveDialog = new SaveFileDialog {
Filter = "SAE scheme (*.sa4)|*.sa4|PNG image (*.png)|*.png|JPG image (*.jpg)|*.jpg"
})
{
if (saveDialog.ShowDialog(this) == DialogResult.OK)
{
switch (saveDialog.FilterIndex)
{
case 1:
var image = CodedImage.FromIndexedImage(IndexedImageExtensions.FromBitmap(bitmap));
using (var stream = new FileStream(saveDialog.FileName, FileMode.Create))
{
image.SaveToStream(stream);
}
break;
case 2:
bitmap.Save(saveDialog.FileName, ImageFormat.Png);
break;
case 3:
bitmap.Save(saveDialog.FileName, ImageFormat.Jpeg);
break;
default:
bitmap.Save(saveDialog.FileName);
break;
}
}
}
}