public void Initialize()
{
SetBackgroundColor(Color.Transparent);
_scale = Resources.DisplayMetrics.Density;
_canvas = new SKCanvasView(Context);
_canvas.PaintSurface += CanvasOnPaintSurface;
AddView(_canvas);
Map = new Map();
_renderer = new Rendering.Skia.MapRenderer();
TryInitializeViewport();
Touch += MapView_Touch;
_gestureDetector = new GestureDetector(Context, new GestureDetector.SimpleOnGestureListener());
_gestureDetector.SingleTapConfirmed += OnSingleTapped;
_gestureDetector.DoubleTap += OnDoubleTapped;
}
public MonkeyThroughKeyholePage()
{
Title = "Monkey through Keyhole";
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
string resourceID = "SkiaSharpFormsDemos.Media.SeatedMonkey.jpg";
Assembly assembly = GetType().GetTypeInfo().Assembly;
using (Stream stream = assembly.GetManifestResourceStream(resourceID))
using (SKManagedStream skStream = new SKManagedStream(stream))
{
bitmap = SKBitmap.Decode(skStream);
}
}
private void Initialize()
{
var window = new Window("SkiaSharp");
window.BackButtonPressed += OnBackButtonPressed;
window.AvailableRotations = DisplayRotation.Degree_0 | DisplayRotation.Degree_180 | DisplayRotation.Degree_270 | DisplayRotation.Degree_90;
window.Show();
var skiaView = new SKCanvasView(window);
skiaView.PaintSurface += OnPaintSurface;
skiaView.Show();
var conformant = new Conformant(window);
conformant.Show();
conformant.SetContent(skiaView);
}
public void Draw(SKCanvasView skCanvasView, SKCanvas skCanvas)
{
skCanvas.Clear();
if (_highlightState == null)
{
return;
}
if (_skPaint == null)
{
_skPaint = CreateHighlightSkPaint(skCanvasView, _highlightSettings, _highlightState.HighlightPath);
}
var strokeDash = _highlightState.StrokeDash;
// Comment the next line to see whole path without dash effect
_skPaint.PathEffect = SKPathEffect.CreateDash(strokeDash.Intervals, strokeDash.Phase);
skCanvas.DrawPath(_highlightState.HighlightPath.Path, _skPaint);
}
protected override void OnElementChanged(ElementChangedEventArgs <Layout> e)
{
base.OnElementChanged(e);
_clipper = new SKClipperView(Forms.NativeParent);
_clipper.Show();
_clipper.PassEvents = true;
_clipper.PaintSurface += OnCliperPaint;
Control.Children.Add(_clipper);
BackgroundCanvas?.StackAbove(_clipper);
_shadowCanvasView = new SKCanvasView(Forms.NativeParent);
_shadowCanvasView.Show();
_shadowCanvasView.PassEvents = true;
_shadowCanvasView.PaintSurface += OnShadowPaint;
Control.Children.Add(_shadowCanvasView);
_shadowCanvasView.Lower();
_shadowCanvasView.SetClip(null);
}
public CornerToCornerGradientPage()
{
Title = "Corner-to-Corner Gradient";
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
TapGestureRecognizer tap = new TapGestureRecognizer();
tap.Tapped += (sender, args) =>
{
drawBackground ^= true;
canvasView.InvalidateSurface();
};
canvasView.GestureRecognizers.Add(tap);
}
public MainPage()
{
Title = "MyTests";
InitializeComponent();
_cam = new Camera(5, 9, 16);
_hlist.Add(new Sphere(new Vector3(0, 0, 2), 1.0, new Lamberian(new Vector3(0.8, 0.3, 0.3))));
_hlist.Add(new Sphere(new Vector3(0, -100, 20), 100.0, new Lamberian(new Vector3(0.8, 0.8, 0.0))));
_hlist.Add(new Sphere(new Vector3(2, 0, 2), 1.0, new Metal(new Vector3(0.8, 0.6, 0.2), 0.0)));
_hlist.Add(new Sphere(new Vector3(-2, 0, 2), 1.0, new Dielectric(1.5)));
canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
}
private void CreateTouchInterface()
{
this.Content = null;
_touchPoints.Clear();
if (this.VerticalTouchPoints <= 0 || this.HorizontalTouchPoints <= 0)
{
return;
}
_canvas = new SKCanvasView();
_canvas.IgnorePixelScaling = false;
_canvas.EnableTouchEvents = true;
_canvas.PaintSurface += CanvasOnPaintSurface;
_canvas.Touch += CanvasOnTouch;
this.Content = _canvas;
}
public MainPage()
{
InitializeComponent();
PopulatePointsList();
string resourceID = "SolixTest.Resources.image.png";
Assembly assembly = GetType().GetTypeInfo().Assembly;
using (Stream stream = assembly.GetManifestResourceStream(resourceID))
{
bitmap = SKBitmap.Decode(stream);
}
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
var Content = canvasView;
}
public ClippingTextPage()
{
Title = "Clipping Text";
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
string resourceID = "SkiaSharpFormsDemos.Media.PageOfCode.png";
Assembly assembly = GetType().GetTypeInfo().Assembly;
using (Stream stream = assembly.GetManifestResourceStream(resourceID))
using (SKManagedStream skStream = new SKManagedStream(stream))
{
bitmap = SKBitmap.Decode(skStream);
}
}
public TileAlignmentPage()
{
Title = "Tile Alignment";
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
// Add tap handler
TapGestureRecognizer tap = new TapGestureRecognizer();
tap.Tapped += (sender, args) =>
{
isAligned ^= true;
canvasView.InvalidateSurface();
};
canvasView.GestureRecognizers.Add(tap);
Content = canvasView;
}
public PredictionResultsPage(MediaDetails media, ImagePrediction prediction)
{
Title = ApplicationResource.PagePredictionResultsTitle;
BindingContext = viewModel = new PredictionResultsViewModel(Navigation, media, prediction);
viewModel.PredictionsChanged += OnPredictionsChanged;
var screenSize = new Size(App.ScreenWidth, App.ScreenHeight);
// Image View
photoView = new Image();
photoView.Source = ImageSource.FromFile(media.FullPath);
AbsoluteLayout.SetLayoutBounds(photoView, new Rectangle(0, 0, 1, 1));
AbsoluteLayout.SetLayoutFlags(photoView, AbsoluteLayoutFlags.All);
// Canvas View
canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
AbsoluteLayout.SetLayoutBounds(canvasView, new Rectangle(0, 0, 1, 1));
AbsoluteLayout.SetLayoutFlags(canvasView, AbsoluteLayoutFlags.All);
// Slider view
Slider confidenceSlider = new Slider()
{
Minimum = 0, Maximum = 1
};
confidenceSlider.SetBinding(Slider.ValueProperty, new Binding("Confidence"));
AbsoluteLayout.SetLayoutBounds(confidenceSlider, new Rectangle(.5, 1, .8, .1));
AbsoluteLayout.SetLayoutFlags(confidenceSlider, AbsoluteLayoutFlags.All);
var layout = new AbsoluteLayout();
layout.Margin = new Thickness(10);
layout.Children.Add(photoView);
layout.Children.Add(canvasView);
layout.Children.Add(confidenceSlider);
layout.SizeChanged += Layout_SizeChanged;
Content = layout;
var orientation = ImageUtils.GetImageOrientation(media.FullPath);
imageBytes = File.ReadAllBytes(media.FullPath);
masterBitmap = ImageUtils.HandleOrientation(SKBitmap.Decode(imageBytes), orientation);
}
private void _readyOption(
PageComponentType pcType,
IGameOption opt,
EventHandler PressFunc = null
)
{
if (null == opt)
{
return;
}
if (null != opt.SubOptions)
{
_readyOptionSet(
pcType,
opt.SubOptions,
PressFunc
);
return;
}
SKCanvasView Img = new SKCanvasView();
IFlorineSkiaConnectable conn = opt as IFlorineSkiaConnectable;
if (null != conn)
{
conn.ConnectCanvasView(Img);
}
IFlorineSkiaEventDriver econn = opt as IFlorineSkiaEventDriver;
if (null != econn)
{
if (null != PressFunc)
{
econn.OnEventTriggered += PressFunc;
}
}
_components.Add(
new PageComponent(
_inc(pcType),
Img
)
);
}
public ConveyorBeltPage()
{
Title = "Conveyor Belt";
canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
// Create the path for the bucket starting with the handle
bucketPath.AddRect(new SKRect(-5, -3, 25, 3));
// Sides
bucketPath.AddRoundedRect(new SKRect(25, -19, 27, 18), 10, 10,
SKPathDirection.CounterClockwise);
bucketPath.AddRoundedRect(new SKRect(63, -19, 65, 18), 10, 10,
SKPathDirection.CounterClockwise);
// Five slats
for (int i = 0; i < 5; i++)
{
bucketPath.MoveTo(25, -19 + 8 * i);
bucketPath.LineTo(25, -13 + 8 * i);
bucketPath.ArcTo(50, 50, 0, SKPathArcSize.Small,
SKPathDirection.CounterClockwise, 65, -13 + 8 * i);
bucketPath.LineTo(65, -19 + 8 * i);
bucketPath.ArcTo(50, 50, 0, SKPathArcSize.Small,
SKPathDirection.Clockwise, 25, -19 + 8 * i);
bucketPath.Close();
}
// Arc to suggest the hidden side
bucketPath.MoveTo(25, -17);
bucketPath.ArcTo(50, 50, 0, SKPathArcSize.Small,
SKPathDirection.Clockwise, 65, -17);
bucketPath.LineTo(65, -19);
bucketPath.ArcTo(50, 50, 0, SKPathArcSize.Small,
SKPathDirection.CounterClockwise, 25, -19);
bucketPath.Close();
// Make it a little bigger and correct the orientation
bucketPath.Transform(SKMatrix.MakeScale(-2, 2));
bucketPath.Transform(SKMatrix.MakeRotationDegrees(90));
}
public PixelDimensionsPage()
{
Title = "Pixel Dimensions";
// Load the bitmap from a resource
string resourceID = "SkiaSharpFormsDemos.Media.Banana.jpg";
Assembly assembly = GetType().GetTypeInfo().Assembly;
using (Stream stream = assembly.GetManifestResourceStream(resourceID))
{
bitmap = SKBitmap.Decode(stream);
}
// Create the SKCanvasView and set the PaintSurface handler
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
}
//CONSTRUCTOR
public CongestionControlDraw()
{
textSize = 5;
strokeWidth = 0.2f;
// crate the canvas
skiaview = new SKCanvasView();
skiaview.PaintSurface += PaintSurface;
AddGestureRecognizers();
stateR = CongestionControl.stateR;
stateT = CongestionControl.stateT;
maxCwnd = CongestionControl.maxCwnd;
numberOfRounds = CongestionControl.numberOfRounds;
xWidth = 92f / (numberOfRounds + 1);
yWidth = 93f / (maxCwnd + 1);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
// Get our button from the layout resource,
// and attach an event to it
_canvasView = FindViewById <SKCanvasView>(Resource.Id.canvasView);
_canvasView.PaintSurface += OnPaint;
_touchHandler = new TouchHandler()
{
UseTouchSlop = true
};
_touchHandler.RegisterEvents(_canvasView);
_touchHandler.TouchAction += OnTouch;
}
public void Initialize()
{
SetBackgroundColor(Color.Transparent);
_density = PixelsPerDeviceIndependentUnit;
_canvas = new SKCanvasView(Context)
{
IgnorePixelScaling = true
};
_canvas.PaintSurface += CanvasOnPaintSurface;
AddView(_canvas);
Map = new Map();
TryInitializeViewport(ScreenWidth, ScreenHeight);
Touch += MapView_Touch;
_gestureDetector = new GestureDetector(Context, new GestureDetector.SimpleOnGestureListener());
_gestureDetector.SingleTapConfirmed += OnSingleTapped;
_gestureDetector.DoubleTap += OnDoubleTapped;
}
public CakeOrientation(CarbonFootprint co2, SKCanvasView canvasView)
{
this.CanvasView = canvasView;
this.Width = (float)canvasView.Width;
this.Height = (float)canvasView.Height;
this.CurrentlySelected = null;
this.Center = new SKPoint(Width / 2, Height / 2);
this.Thickness = Width / 10;
this.IconOffset = Width / 50;
this.IconRadius = Width / 12;
this.Radius = Math.Min(Width / 2, Height / 2) - 1.5f * Width / 12;
//System.Diagnostics.Debug.WriteLine("Width: " + size.Width);
this.TotalValues = 0;
this.CO2 = co2;
this.PopOver = new PopOver(Radius - Thickness * 1.3f, Width / 5, Width / 14, Width / 18);
this.BoldFont = new SKPaint
{
IsAntialias = true,
Style = SKPaintStyle.Fill,
TextAlign = SKTextAlign.Center,
Typeface = SKTypeface.FromFile("OpenSans-Bold.ttf")
};
this.NormalFont = new SKPaint
{
IsAntialias = true,
Style = SKPaintStyle.Fill,
TextAlign = SKTextAlign.Center,
Typeface = SKTypeface.FromFile("OpenSans-Normal.ttf")
};
foreach (IEmission Emission in CO2.Emissions)
{
TotalValues += (float)Emission.KgCO2;
}
PiecesOfCake = new PieceOfCake[co2.Emissions.Length];
InitializeCake();
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
Controller = new LS.UI.GameController(this);
Controller.Startup(new FileStorage());
Canvas = new CanvasView(View.Frame)
{
IgnorePixelScaling = true
};
Canvas.PaintSurface += OnPlatformPaint;
View.AddSubview(Canvas);
Canvas.AutoresizingMask = NSViewResizingMask.MinXMargin | NSViewResizingMask.MinYMargin |
NSViewResizingMask.MaxXMargin | NSViewResizingMask.MaxYMargin | NSViewResizingMask.HeightSizable |
NSViewResizingMask.WidthSizable;
}
private void menuItemCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
if (sender == null)
{
return;
}
SKCanvasView canvasView = (SKCanvasView)sender;
GHMenuItem menuitem = (GHMenuItem)canvasView.BindingContext;
if (menuitem != null)
{
//SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear(SKColors.Transparent);
//float width = info.Width;
//float height = info.Height;
float canvaswidth = canvasView.CanvasSize.Width;
float canvasheight = canvasView.CanvasSize.Height;
int signed_glyph = menuitem.Glyph;
int glyph = Math.Abs(signed_glyph);
bool hflip = (signed_glyph < 0);
if (glyph < _gamePage.Glyph2Tile.Length)
{
int ntile = _gamePage.Glyph2Tile[glyph];
int sheet_idx = _gamePage.TileSheetIdx(ntile);
int tile_x = _gamePage.TileSheetX(ntile);
int tile_y = _gamePage.TileSheetY(ntile);
int tile_extra_y = GHConstants.TileHeight / 2;
SKRect sourcerect = new SKRect(tile_x, tile_y + tile_extra_y, tile_x + GHConstants.TileWidth, tile_y + GHConstants.TileHeight);
SKRect targetrect = new SKRect(0, 0, canvaswidth, canvasheight);
canvas.DrawBitmap(_gamePage.TileMap[sheet_idx], sourcerect, targetrect);
}
}
}
public App()
{
_canvasView = new SKCanvasView {
HeightRequest = 100, WidthRequest = 100
};
// use a closure so can bind to our contextual items data
// painting on rapidly triggered callback means OpenGL surface calcs are done
// and dimensions known at that point
_canvasView.PaintSurface += (object sender, SKPaintSurfaceEventArgs paintArgs) => {
SKImageInfo info = paintArgs.Info;
SKSurface surface = paintArgs.Surface;
SKCanvas canvas = surface.Canvas;
Debug.WriteLine($"canvas bounds {canvas.LocalClipBounds}");
canvas.Clear();
DrawImageFromResource(canvas, _paint);
};
// The root page of your application
var content = new ContentPage
{
Title = "SkiaImageDraw",
Content = new StackLayout
{
VerticalOptions = LayoutOptions.Center,
Children =
{
new Label {
HorizontalTextAlignment = TextAlignment.Center,
Text = "png drawn by Image then within Skia canvas"
},
new Image {
Source = "day_shift.png"
},
_canvasView
}
}
};
MainPage = new NavigationPage(content);
}
protected override void OnElementChanged(ElementChangedEventArgs<Layout> e)
{
if (Control == null)
{
SetNativeControl(new Canvas(Forms.NativeParent));
_canvasView = new SKCanvasView(Forms.NativeParent);
_canvasView.PaintSurface += OnPaintSurface;
_canvasView.Show();
Control.Children.Add(_canvasView);
Interop.evas_object_clip_unset(_canvasView);
Control.LayoutUpdated += OnLayoutUpdated;
if (ShadowsElement.Shades is INotifyCollectionChanged items)
{
items.CollectionChanged += OnShadesCollectionChanged;
}
_shadesSource = ShadowsElement.Shades;
}
base.OnElementChanged(e);
}
public PrimaryColorsPage()
{
Title = "Primary Colors";
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
// Switch between additive and subtractive primaries at tap
TapGestureRecognizer tap = new TapGestureRecognizer();
tap.Tapped += (sender, args) =>
{
isSubtractive ^= true;
canvasView.InvalidateSurface();
};
canvasView.GestureRecognizers.Add(tap);
Content = canvasView;
}
public PosterizePage()
{
Title = "Posterize";
unsafe
{
uint *ptr = (uint *)bitmap.GetPixels().ToPointer();
int pixelCount = bitmap.Width * bitmap.Height;
for (int i = 0; i < pixelCount; i++)
{
*ptr++ &= 0xE0E0E0FF;
}
}
SKCanvasView canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Content = canvasView;
}
public ModelViewSurface(RodModelVM viewModel, SKCanvasView view)
{
RModelView = view;
modelVM = viewModel;
RModelView.PaintSurface += OnPaintSurface;
RModelView.SizeChanged += OnViewSizeChanged;
ModelViewFragment = new IssoPoint2D()
{
X = 0, Y = 0
};
StartPt = new IssoPoint2D()
{
X = 0, Y = 0
};
EndPt = new IssoPoint2D()
{
X = 0, Y = 0
};
Grid = new SurfaceGrid();
}
public XFrame()
{
//this.HasShadow = false;
//this.Padding = 0;
this.BackgroundColor = Color.Transparent;
canvasView = new SKCanvasView();
canvasView.PaintSurface += OnCanvasViewPaintSurface;
Console.WriteLine(":::::>>>>> COLOR " + BaseColor);
InitAll();
//Content = canvasView;
// Draw Rectangle
}
private async void Button_Clicked(object sender, EventArgs e)
{
Success.IsVisible = false;
//var webClient = new WebClient();
//byte[] imageData = webClient.DownloadData("https://kasikornbank.com/SiteCollectionDocuments/about/img/logo/logo.png");
ICreateReceipt photoLibrary = DependencyService.Get <ICreateReceipt>();
string filename = DateTime.Now.ToString("yyyyMMdd-hhmmss");
string extension = ".png";
var data = CreateImage();
bool result = await photoLibrary.SavePhotoAsync(data, "Xamarin", filename + extension);
SKCanvasView sKCanvasView = new SKCanvasView();
sKCanvasView.HeightRequest = 300;
sKCanvasView.HorizontalOptions = LayoutOptions.CenterAndExpand;
sKCanvasView.WidthRequest = 50;
sKCanvasView.PaintSurface += SKCanvasView_PaintSurface;
stack.Children.Add(sKCanvasView);
Success.IsVisible = true;
}
public ShapeView(EvasObject parent) : base(parent)
{
_skPaint = new SKPaint();
_skPaint.IsAntialias = true;
_skCanvasView = new SKCanvasView(parent);
_skCanvasView.PaintSurface += OnPaintSurface;
_skCanvasView.Show();
Children.Add(_skCanvasView);
LayoutUpdated += OnLayoutUpdated;
_pathFillBounds = new SKRect();
_pathStrokeBounds = new SKRect();
_skPaint.StrokeCap = SKStrokeCap.Butt;
_skPaint.StrokeJoin = SKStrokeJoin.Miter;
_strokeWidth = 1f;
_strokeDashOffset = 0f;
_strokeMiterLimit = 10f;
_stretch = Stretch.None;
}
public void Initialize()
{
Xamarin.Forms.View view;
if (UseGPU)
{
// Use GPU backend
_glView = new SKGLView
{
HasRenderLoop = false,
EnableTouchEvents = true,
};
// Events
_glView.Touch += OnTouch;
_glView.PaintSurface += OnGLPaintSurface;
_invalidate = () => { RunOnUIThread(() => _glView.InvalidateSurface()); };
view = _glView;
}
else
{
// Use CPU backend
_canvasView = new SKCanvasView
{
EnableTouchEvents = true,
};
// Events
_canvasView.Touch += OnTouch;
_canvasView.PaintSurface += OnPaintSurface;
_invalidate = () => { RunOnUIThread(() => _canvasView.InvalidateSurface()); };
view = _canvasView;
}
view.SizeChanged += OnSizeChanged;
Content = view;
Map = new Map();
BackgroundColor = Color.White;
_initialized = true;
}
