public NativeSkiaView(Android.Content.Context context, SkiaView skiaView)
: base(context)
{
this.skiaView = skiaView;
this.iskiaView = skiaView;
this.Click += OnTapped;
}
void OnLoaded(object sender, RoutedEventArgs e)
{
Transform = PresentationSource.FromVisual(this).CompositionTarget.TransformToDevice;
Controller = new GameController(this);
Controller.Startup(new FileStorage());
SkiaView.InvalidateVisual();
}
private void DrawCircle()
{
var skiaView = new SkiaView()
{
WidthRequest = 40,
HeightRequest = 40
};
skiaView.OnPaintSurface = (surface, imageInfo) =>
{
var centerX = 20;
var centerY = 20;
var canvas = surface.Canvas;
canvas.Clear();
var fill = new SKPaint()
{
IsAntialias = true,
Style = SKPaintStyle.Fill,
Color = SKColor.Parse("#ff0000")
};
canvas.DrawCircle(centerX, centerY, 20, fill);
};
this.layout.Children.Add(skiaView);
}
void AddImage_Clicked(System.Object sender, System.EventArgs e)
{
var index = _rand.Next(0, _buffer.Count());
index = 13;
var im = SKImage.FromEncodedData(_buffer.ElementAt(index)).ToTextureImage(SkiaView.GRContext);
var img = new MyImage()
{
Image = im
};
if (_numberOfImages % 8 == 0)
{
_lastX = 0;
_lastY += imagesize + _padding;
}
else
{
_lastX += imagesize + _padding;
}
img.Destination = new SKRect(_lastX, _lastY, _lastX + imagesize, _lastY + imagesize);
_images.Add(img);
_numberOfImages++;
SkiaView.InvalidateSurface();
}
private void Pinch_PinchUpdated(object sender, PinchGestureUpdatedEventArgs e)
{
if (e.Status == GestureStatus.Started)
{
_startScale = _lastScale;
}
else if (e.Status == Xamarin.Forms.GestureStatus.Running)
{
_currentScale += (e.Scale - 1) * _startScale;
_currentScale = Math.Max(0.003, _currentScale);
_currentMatrix.ScaleX = (float)_currentScale;
_currentMatrix.ScaleY = (float)_currentScale;
SkiaView.InvalidateSurface();
}
}
void RemoveImage_Clicked(System.Object sender, System.EventArgs e)
{
if (_images.Count() != 0)
{
_images.RemoveAt(_images.Count() - 1);
_numberOfImages--;
if (_numberOfImages % 5 == 0)
{
_lastX = 0;
_lastY -= imagesize + _padding;
}
else
{
_lastX -= imagesize + _padding;
}
}
SkiaView.InvalidateSurface();
}
void Quality_SelectedIndexChanged(System.Object sender, System.EventArgs e)
{
switch (QualityPicker.SelectedIndex)
{
case 0:
_quality = SKFilterQuality.None;
break;
case 1:
_quality = SKFilterQuality.Low;
break;
case 2:
_quality = SKFilterQuality.Medium;
break;
case 3:
_quality = SKFilterQuality.High;
break;
}
SkiaView.InvalidateSurface();
}
private void SkiaView_Touch(object sender, SkiaSharp.Views.Forms.SKTouchEventArgs e)
{
switch (e.ActionType)
{
case SkiaSharp.Views.Forms.SKTouchAction.Entered:
_dragX = e.Location.X;
_dragY = e.Location.Y;
break;
case SkiaSharp.Views.Forms.SKTouchAction.Moved:
_currentMatrix.TransX = _dragX + e.Location.X;
_currentMatrix.TransY = _dragY + e.Location.Y;
SkiaView.InvalidateSurface();
break;
case SkiaSharp.Views.Forms.SKTouchAction.Released:
break;
default:
break;
}
}
private void DrawSvg()
{
var skiaView = new SkiaView()
{
WidthRequest = 125,
HeightRequest = 125
};
skiaView.OnPaintSurface = (surface, imageInfo) =>
{
using (var s = this.GetType().Assembly.GetManifestResourceStream("Samples.star.svg"))
{
var svg = new SkiaSharp.Extended.Svg.SKSvg();
svg.Load(s);
var sx = Convert.ToSingle(skiaView.WidthRequest / svg.CanvasSize.Width);
var sy = Convert.ToSingle(skiaView.HeightRequest / svg.CanvasSize.Height);
var matrix = SKMatrix.MakeScale(sx, sy);
surface.Canvas.DrawPicture(svg.Picture, ref matrix);
}
};
this.layout.Children.Add(skiaView);
}
public override void Attach(SkiaView skiaView)
{
var viewInitialX = skiaView.X - _xToastRatio * skiaView.X;
var viewInitialY = skiaView.Y - _yToastRatio * skiaView.Y;
var viewInitialOpacity = skiaView.Opacity - _opacityToastRatio * skiaView.Opacity;
var viewTargetX = skiaView.X;
var viewTargetY = skiaView.Y;
var viewTargetOpacity = skiaView.Opacity;
_initialX = viewInitialX - viewTargetX;
_initialY = viewInitialY - viewTargetY;
_initialOpacity = viewInitialOpacity - viewTargetOpacity;
_previousAnimatedOpacity = _initialOpacity;
_previousAnimatedX = _initialX;
_previousAnimatedY = _initialY;
skiaView.X += _initialX;
skiaView.Y += _initialY;
skiaView.Opacity += _initialOpacity;
this.Animate("toastY", p => _animatedY = (float)p, _initialY, 0, 4, _positionToastMs, Easing.CubicOut);
this.Animate("toastX", p => _animatedX = (float)p, _initialX, 0, 4, _positionToastMs, Easing.CubicOut);
this.Animate("toastOpacity", p => _animatedOpacity = (float)p, _initialOpacity, 0, 4, _opacityToastMs, Easing.CubicOut);
Task.Run(() =>
{
Task.Delay((int)Math.Max(_opacityToastMs, _positionToastMs)).Wait();
Dispose();
});
base.Attach(skiaView);
}
private async Task DrawScaledUpImage()
{
if (_applyDitherBitmap == null)
{
return;
}
if (SkiaView.CanvasSize.Width > 0)
{
int newCanvasWidth = (int)SkiaView.CanvasSize.Width;
int newCanvasHeight = (int)(SkiaView.CanvasSize.Width * (_applyDitherBitmap.Height / (double)_applyDitherBitmap.Width));
if ((int)SkiaView.CanvasSize.Width > (int)SkiaView.CanvasSize.Height)
{
newCanvasWidth = (int)(SkiaView.CanvasSize.Height * (_applyDitherBitmap.Width / (double)_applyDitherBitmap.Height));
newCanvasHeight = (int)SkiaView.CanvasSize.Height;
}
_drawBitmap = new SKBitmap(newCanvasWidth, newCanvasHeight);
}
_applyDitherBitmap.ScalePixels(_drawBitmap, SKFilterQuality.None);
SkiaView.InvalidateSurface();
}
public void Invalidate()
{
SkiaView.InvalidateVisual();
}
public NativeSkiaView(SkiaView skiaView)
{
this.skiaView = skiaView;
this.SizeChanged += OnSizeChanged;
this.Tapped += OnTapped;
}
public NativeSkiaView(SkiaView skiaView)
{
this.skiaView = skiaView;
AddGestureRecognizer(new UITapGestureRecognizer(OnTapped));
}
public NativeSkiaView(SkiaView skiaView)
{
this.skiaView = skiaView;
}
void ZoomOut_Clicked(System.Object sender, System.EventArgs e)
{
_currentMatrix.ScaleX -= _zoomFactor;
_currentMatrix.ScaleY -= _zoomFactor;
SkiaView.InvalidateSurface();
}
public virtual void Attach(SkiaView skiaView)
{
View = skiaView;
}
public NativeSkiaView(Android.Content.Context context, SkiaView skiaView) : base(context)
{
_skiaView = skiaView;
}
public NativeSkiaView(SkiaView skiaView) => this.skiaView = skiaView;
public NativeSkiaView(Android.Content.Context context, SkiaView skiaView) : base(context)
{
this.skiaView = skiaView;
this.iskiaView = skiaView;
this.Click += OnTapped;
}
public virtual void Detach()
{
View = null;
}
public NativeSkiaView(SkiaView skiaView)
{
this.skiaView = skiaView;
this.SizeChanged += OnSizeChanged;
}
public NativeSkiaView(Android.Content.Context context, SkiaView skiaView)
: base(context)
{
this.skiaView = skiaView;
}
