protected override void OnUpdating(UltravioletTime time)
{
// ACTION: Save Image
if (Ultraviolet.GetInput().GetActions().SaveImage.IsPressed() || (Ultraviolet.GetInput().GetPrimaryTouchDevice()?.WasTapped() ?? false))
{
content.Load <SoundEffect>(GlobalSoundEffectID.Shutter).Play();
// The SurfaceSaver class contains platform-specific functionality needed to write image
// data to streams. We can pass a render target directly to the SaveAsPng() or SaveAsJpg() methods.
var saver = SurfaceSaver.Create();
// The Android and iOS platforms have restrictions on where you can save files, so we'll just
// save to the photo gallery on those devices. We'll use a partial method to implement
// this platform-specific behavior.
SaveImage(saver, rtarget);
// Alternatively, we could populate an array with the target's data using the GetData() method...
// var data = new Color[rtarget.Width * rtarget.Height];
// rtarget.GetData(data);
}
// ACTION: Exit Application
if (Ultraviolet.GetInput().GetActions().ExitApplication.IsPressed())
{
Exit();
}
// Fade out save confirmation message
if (confirmMsgOpacity > 0)
{
confirmMsgOpacity -= (1.0 / 4.0) * time.ElapsedTime.TotalSeconds;
}
base.OnUpdating(time);
}
/// <summary>
/// Saves the surface as a PNG image to the specified stream.
/// </summary>
/// <param name="stream">The stream to which to save the image data.</param>
public override void SaveAsPng(Stream stream)
{
Contract.Require(stream, nameof(stream));
var saver = SurfaceSaver.Create();
saver.SaveAsPng(this, stream);
}
/// <inheritdoc/>
public override void SaveAsJpeg(Stream stream)
{
Contract.EnsureNotDisposed(this, Disposed);
Contract.Require(stream, nameof(stream));
var saver = SurfaceSaver.Create();
saver.SaveAsJpeg(this, stream);
}
partial void SaveImage(SurfaceSaver surfaceSaver, RenderTarget2D target)
{
var saver = SurfaceSaver.Create();
var filename = $"output-{DateTime.Now:yyyyMMdd-HHmmss}.png";
var path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), filename);
using (var stream = File.OpenWrite(path))
saver.SaveAsPng(rtarget, stream);
confirmMsgText = $"Image saved to {path}";
confirmMsgOpacity = 1;
}
partial void SaveImage(SurfaceSaver surfaceSaver, RenderTarget2D target)
{
var saver = SurfaceSaver.Create();
var filename = $"output-{DateTime.Now:yyyyMMdd-HHmmss}.png";
var path = filename;
using (var stream = File.OpenWrite(path))
saver.SaveAsPng(rtarget, stream);
confirmMsgText = $"Image saved to {filename}";
confirmMsgOpacity = 1;
}
/// <inheritdoc/>
protected override void OnUpdating(UltravioletTime time)
{
// ACTION: Save Image
if (Ultraviolet.GetInput().GetActions().SaveImage.IsPressed() || (Ultraviolet.GetInput().GetTouchDevice()?.WasTapped() ?? false))
{
content.Load <SoundEffect>(GlobalSoundEffectID.Shutter).Play();
// The SurfaceSaver class contains platform-specific functionality needed to write image
// data to files. We can pass a render target directly to the SaveAsPng() or SaveAsJpg() methods.
var saver = SurfaceSaver.Create();
var filename = $"output-{DateTime.Now:yyyyMMdd-HHmmss}.png";
var path = filename;
#if ANDROID
var dir = Android.OS.Environment.GetExternalStoragePublicDirectory(
Android.OS.Environment.DirectoryPictures).AbsolutePath;
path = Path.Combine(dir, filename);
#endif
using (var stream = File.OpenWrite(path))
saver.SaveAsPng(rtarget, stream);
#if ANDROID
Android.Media.MediaScannerConnection.ScanFile(ApplicationContext, new String[] { path },
new String[] { Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension("png") }, null);
confirmMsgText = $"Image saved to photo gallery";
confirmMsgOpacity = 1;
#else
confirmMsgText = $"Image saved to {filename}";
confirmMsgOpacity = 1;
#endif
// Alternatively, we could populate an array with the target's data using the GetData() method...
// var data = new Color[rtarget.Width * rtarget.Height];
// rtarget.GetData(data);
}
// ACTION: Exit Application
if (Ultraviolet.GetInput().GetActions().ExitApplication.IsPressed())
{
Exit();
}
// Fade out save confirmation message
if (confirmMsgOpacity > 0)
{
confirmMsgOpacity -= (1.0 / 4.0) * time.ElapsedTime.TotalSeconds;
}
base.OnUpdating(time);
}
/// <inheritdoc/>
public override void SaveAsPng(Stream stream)
{
Contract.EnsureNotDisposed(this, Disposed);
Contract.Require(stream, nameof(stream));
Contract.Ensure(IsComplete, SDL2Strings.SurfaceIsNotComplete);
EnsureAllLayersMatchSrgbEncoding();
var outputSurfaceOptions = SrgbEncoded ? SurfaceOptions.SrgbColor : SurfaceOptions.LinearColor;
using (var outputSurface = Surface2D.Create(Width * Depth, Height, outputSurfaceOptions))
{
var position = 0;
for (int i = 0; i < Depth; i++)
{
GetLayer(i).Blit(outputSurface, new Rectangle(position, 0, Width, Height));
position += Width;
}
var surfaceSaver = SurfaceSaver.Create();
surfaceSaver.SaveAsPng(outputSurface, stream);
}
}