/// <summary>
/// Function to initialize the view from the data context.
/// </summary>
/// <param name="dataContext">The data context to use.</param>
private void InitializeFromDataContext(IImageContent dataContext)
{
if (dataContext == null)
{
ResetDataContext();
return;
}
_ribbonForm.SetDataContext(dataContext);
CropResizeSettings.SetDataContext(dataContext.CropOrResizeSettings);
DimensionSettings.SetDataContext(dataContext.DimensionSettings);
GenMipMapSettings.SetDataContext(dataContext.MipMapSettings);
SetAlpha.SetDataContext(dataContext.AlphaSettings);
}
/// <summary>
/// Tints using alpha channel and memory-friendly Pipeline API
/// </summary>
private static void TintUsingAlphaMemoryFriendly(RgbColor color)
{
// reader ---> converter ---> invert -----\
// generator ---> setAlpha ---> removeAlpha ---> writer
using (var reader = ImageReader.Create("../../../../_Input/Chicago.jpg"))
using (var converter = new ColorConverter(PixelFormat.Format8bppGrayscale))
using (var invert = new Invert())
using (var generator = new ImageGenerator(reader.Width, reader.Height, PixelFormat.Format24bppRgb, color))
using (var setAlpha = new SetAlpha())
using (var removeAlpha = new RemoveAlpha(RgbColor.White))
using (var writer = ImageWriter.Create("../../../../_Output/TintUsingAlphaMemoryFriendly_" + color.ToString() + ".jpg"))
{
setAlpha.AlphaSource = reader + converter + invert;
Pipeline.Run(generator + setAlpha + removeAlpha + writer);
}
}
/// <summary>
/// Adds alpha channel using memory-friendly Pipeline API
/// </summary>
private static void AddAlphaChannelMemoryFriendly()
{
// reader ---------------> setAlpha ---> writer
// alpha ---> drawer ---/
using (var reader = ImageReader.Create("../../../../_Input/Chicago.jpg"))
using (var alpha = new ImageGenerator(reader.Width, reader.Height, PixelFormat.Format8bppGrayscale, new GrayscaleColor(0)))
using (var drawer = new Drawer())
using (var setAlpha = new SetAlpha())
using (var writer = ImageWriter.Create("../../../../_Output/AddAlphaChannelMemoryFriendly.png"))
{
drawer.Draw += (sender, e) =>
{
e.Graphics.FillEllipse(new SolidBrush(new GrayscaleColor(255)),
0, 0, reader.Width, reader.Height);
};
setAlpha.AlphaSource = alpha + drawer;
Pipeline.Run(reader + setAlpha + writer);
}
}