private void CanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
float maxRadius = 0.75f * Math.Min(info.Width, info.Height) / 2;
float minRadius = 0.25f * maxRadius;
float xRadius = minRadius * scale + maxRadius * (1 - scale);
float yRadius = maxRadius * scale + minRadius * (1 - scale);
using (SKPaint paint = new SKPaint())
{
paint.Style = SKPaintStyle.Stroke;
paint.Color = SKColors.Blue;
paint.StrokeWidth = 50;
paint.IsAntialias = true;
canvas.DrawOval(info.Width / 2, info.Height / 2, xRadius, yRadius, paint);
paint.Style = SKPaintStyle.Fill;
paint.Color = SKColors.SkyBlue;
canvas.DrawOval(info.Width / 2, info.Height / 2, xRadius, yRadius, paint);
}
}
void BoundingBox_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
if (ViewModel.lastPrediction?.BoundingBox == null)
{
return;
}
var boundingBox = ViewModel.lastPrediction.BoundingBox;
e.Surface.Canvas.Clear();
var SKSkiaView = sender as SKCanvasView;
double scaleFactor = e.Info.Width / SKSkiaView.Width;
float width = (float)e.Info.Width;
float height = (float)e.Info.Height;
float lineStrokeWidth = 2 * (float)scaleFactor;
float boxX = (float)((width * boundingBox.Left));
float boxY = (float)((height * boundingBox.Top));
float boxWidth = (float)((width * boundingBox.Width));
float boxHeight = (float)((height * boundingBox.Height));
var paint = new SkiaSharp.SKPaint()
{
Style = SkiaSharp.SKPaintStyle.Stroke,
StrokeWidth = lineStrokeWidth,
Color = SkiaSharp.SKColors.White,
StrokeCap = SKStrokeCap.Round,
};
e.Surface.Canvas.DrawRect(boxX, boxY, boxWidth, boxHeight, paint);
}
private void Planedview_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKPaint paint = new SKPaint
{
Color = Color.LightCoral.ToSKColor(),
};
var items = GetItems();
var infoList = new List <int>();
foreach (PlanList pList in items)
{
var NumCount = 0;
foreach (Plan p in pList)
{
NumCount += p.Count;
}
infoList.Add(NumCount);
}
for (int i = 0; i < infoList.Count; i++)
{
var left = (float)info.Width * i / (infoList.Count);
var top = info.Height * infoList[i] / infoList.Max();
canvas.DrawRect(left, top, info.Width / infoList.Count, info.Height, paint);
}
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
//Fill in the whole grid space
canvas.DrawRect(info.Rect, _accentPaint);
// create path for dark color AccentDarkPaint, dispose path when done.
using (SKPath path = new SKPath())
{
//Assume drawing in a 10 by 10 coordinate system.
path.MoveTo(0, 0); //Start at point (0,0)
path.LineTo(info.Width * .7f, 0); //Line from (0,0) to (0,7) ,Draw to the right to 70 % width of the rectangle(cell)
path.LineTo(info.Width * .2f, info.Height); //Draw from point (0,7) to (2,10)
path.LineTo(0, info.Height); //Draw from point (2,10) to (0,10)
path.Close(); //Close the path, it knows to draw from 0,10 to 0,0
canvas.DrawPath(path, _accentDarkPaint); //Draw and fill path with accent dark paint color.
}
//Similarly, create path for Extra Dark color AccentExtraDarkPaint
using (SKPath path = new SKPath())
{
path.MoveTo(0, 0);
path.LineTo(info.Width * .33f, 0);
path.LineTo(0, info.Height * .6f);
path.Close();
canvas.DrawPath(path, _accentExtraDarkPaint);
}
}
private void canvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKPaint paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = Color.Red.ToSKColor(),
StrokeWidth = 25
};
paint.Style = SKPaintStyle.Fill;
paint.Color = SKColors.Red;
float x, y;
x = (float)(info.Height * Math.Sin(angle));
y = (float)(info.Height * Math.Cos(angle));
canvas.DrawLine(info.Width / 2, info.Height / 2, info.Width / 2 - x, info.Height - y, paint);
paint.Color = SKColors.Yellow;
canvas.DrawLine(info.Width / 2, info.Height / 2, info.Width / 2 + x, y, paint);
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
int cornerRadius = info.Width / 14;
using (SKPath path = new SKPath())
{
path.MoveTo(0, 0);
path.LineTo(info.Width - cornerRadius, 0);
path.CubicTo(info.Width, 0, info.Width, info.Height, info.Width - cornerRadius, info.Height);
path.LineTo(cornerRadius, info.Height);
path.QuadTo(0, info.Height, 0, info.Height - cornerRadius);
path.LineTo(0, 0);
SKPaint paint = new SKPaint
{
Style = SKPaintStyle.StrokeAndFill,
Color = ((Color)App.Current.Resources["secondMessage"]).ToSKColor(),
StrokeWidth = 1,
IsAntialias = true
};
canvas.DrawPath(path, paint);
}
}
private void Paint_RoundRect_withoutBorder(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
using (SKPaint paint = new SKPaint())
{
var radius = info.Height / 2;
SKRect rect;
//half of the strokewidth to get border inside is added to left-top and subtracted from bottom-right
rect = new SKRect(info.Rect.Left, info.Rect.Top, info.Rect.Right, info.Rect.Bottom);
SKColor borderColor = ((Color)Application.Current.Resources["ButtonBackgroundColor"]).ToSKColor();
paint.Color = borderColor;
//paint.StrokeWidth = 5;
//paint.Style = SKPaintStyle.Stroke;
paint.IsAntialias = true;
paint.Style = SKPaintStyle.Fill;
canvas.DrawRoundRect(rect, radius, radius, paint);
//canvas.DrawColor(borderColor, SKBlendMode.ColorDodge);
}
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
var scale = ((SKCanvasView)sender).CanvasSize.Width / 20;
SKPath path = new SKPath();
path.MoveTo(-1 * scale, -1 * scale);
path.LineTo(0 * scale, -1 * scale);
path.LineTo(0 * scale, 0 * scale);
path.LineTo(1 * scale, 0 * scale);
path.LineTo(1 * scale, 1 * scale);
path.LineTo(0 * scale, 1 * scale);
path.LineTo(0 * scale, 0 * scale);
path.LineTo(-1 * scale, 0 * scale);
path.LineTo(-1 * scale, -1 * scale);
SKMatrix matrix = SKMatrix.MakeScale(2 * scale, 2 * scale);
SKPaint paint = new SKPaint();
paint.PathEffect = SKPathEffect.Create2DPath(matrix, path);
paint.Color = Color.LightGray.ToSKColor();
paint.IsAntialias = true;
var patternRect = new SKRect(0, 0, ((SKCanvasView)sender).CanvasSize.Width, ((SKCanvasView)sender).CanvasSize.Height);
canvas.Save();
canvas.DrawRect(patternRect, paint);
canvas.Restore();
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
if (!isinit)
{
return;
}
SKCanvas canvas = e.Surface.Canvas;
int width = e.Info.Width;
int height = e.Info.Height;
canvas.Clear();
canvas.Translate(width / 2, height / 2);
for (int i = 0; i < 360; i = i + 360 / mpoint)
{
float cx = (float)(Math.Cos(i * Math.PI / 180) * cRadius);
float cy = (float)(-Math.Sin(i * Math.PI / 180) * cRadius);
canvas.DrawCircle(cx, cy, mPointRadius, p);
}
//WaveDataUpdate();
FftDataVisualizer();
if (fftdata == null)
{
return;
}
int step = (int)Math.Round((double)fftdata.Length / mpoint);
int j = 0;;
for (int i = 0; i < 360; i = i + 360 / mpoint)
{
if (fftdata[j] < 0)
{
fftdata[j] = 127;
}
var value = fftdata[j];
var meterHeight = value * (500 - cRadius) / 256;
float cx = (float)(Math.Cos(i * Math.PI / 180) * cRadius);
float cy = (float)(-Math.Sin(i * Math.PI / 180) * cRadius);
float cx1 = (float)(Math.Cos(i * Math.PI / 180) * (cRadius + meterHeight));
float cy1 = (float)(-Math.Sin(i * Math.PI / 180) * (cRadius + meterHeight));
canvas.DrawLine(cx, cy, cx1, cy1, p);
j++;
}
//double angle = 0;
//using (SKPath path = new SKPath())
//{
// path.Rewind();
// for (int i = 0; i < mpoint; i++, angle += (360f / mpoint))
// {
// float posX = (float)((cRadius + pointdata[i]) * Math.Cos(RadianToDegree(angle)));
// float posY = (float)((cRadius + pointdata[i]) * Math.Sin(RadianToDegree(angle)));
// if (i == 0)
// path.MoveTo(posX, posY);
// else
// path.LineTo(posX, posY);
// }
// path.Close();
// canvas.DrawPath(path, p);
//}
}
void rozzirefresh(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKPath Diagonale1 = new SKPath();
SKPoint p = new SKPoint(0, 0);
Diagonale1.MoveTo(p);
p = new SKPoint(200, 200);
Diagonale1.LineTo(p);
p = new SKPoint(400, 0);
Diagonale1.LineTo(p);
SKPaint paint1 = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = SKColors.DarkGreen,
StrokeWidth = 3
};
canvas.DrawPath(Diagonale1, paint1);
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
canvas.DrawRect(info.Rect, _accentPaint);
using (SKPath path = new SKPath())
{
path.MoveTo(0, 0);
path.LineTo(info.Width * 0.7f, 0);
path.LineTo(info.Width * .2f, info.Height);
path.LineTo(0, info.Height);
path.Close();
canvas.DrawPath(path, _accentDarkPaint);
}
using (SKPath path = new SKPath())
{
path.MoveTo(0, 0);
path.LineTo(info.Width * 0.33f, 0);
path.LineTo(0, info.Height * .6f);
path.Close();
canvas.DrawPath(path, _accentExtraDarkPaint);
}
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
using (SKPaint paint = new SKPaint())
{
// define the color for the shadow
SKColor shadowColor = ((Color)Application.Current.Resources["ButtonBackgroundColor"]).ToSKColor();
paint.IsDither = true;
paint.IsAntialias = true;
paint.Color = shadowColor;
// create filter for drop shadow
paint.ImageFilter = SKImageFilter.CreateDropShadow(
dx: 0, dy: 0,
sigmaX: 40, sigmaY: 40,
color: shadowColor,
shadowMode: SKDropShadowImageFilterShadowMode.DrawShadowOnly);
// define where I want to draw the object
var margin = info.Width / 10;
var shadowBounds = new SKRect(margin, -40, info.Width - margin, 10);
canvas.DrawRoundRect(shadowBounds, 10, 10, paint);
}
}
private void BackgroundGradient_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
// get the brush based on the theme
SKColor gradientStart = ((Color)Application.Current.Resources["BackgroundGradientStartColor"]).ToSKColor();
SKColor gradientMid = ((Color)Application.Current.Resources["BackgroundGradientMidColor"]).ToSKColor();
SKColor gradientEnd = ((Color)Application.Current.Resources["BackgroundGradientEndColor"]).ToSKColor();
// gradient backround
/*backgroundBrush.Shader = SKShader.CreateRadialGradient
* (new SKPoint(0, info.Height * .8f),
* info.Height * .8f,
* new SKColor[] { gradientStart, gradientMid, gradientEnd },
* new float[] { 0, .5f, 1 },
* SKShaderTileMode.Clamp);*/
backgroundBrush.Shader = SKShader.CreateLinearGradient(
new SKPoint(0, 0),
new SKPoint(info.Width, info.Height),
new SKColor[] {
gradientStart, gradientEnd
},
new float[] { 0, 1 },
SKShaderTileMode.Clamp);
SKRect backgroundBounds = new SKRect(0, 0, info.Width, info.Height);
canvas.DrawRect(backgroundBounds, backgroundBrush);
}
private void OnCanvasViewPaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKPaint paint = new SKPaint()
{
Style = SKPaintStyle.Stroke,
Color = Color.Red.ToSKColor(),
StrokeWidth = 50,
IsAntialias = true
};
canvas.DrawCircle(info.Width / 2, info.Height / 2, 100, paint);
if (showFill)
{
paint.Style = SKPaintStyle.Fill;
paint.Color = SKColors.Blue;
canvas.DrawCircle(info.Width / 2, info.Height / 2, 100, paint);
}
}
void canvasFront_PaintSurface(System.Object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKCanvas canvas = e.Surface.Canvas;
canvas.Clear();
SKMatrix matrix = DrawHelper.GetFullSvgScaledMatrix(e.Info.Width, e.Info.Height, pictureFront);
canvas.DrawPicture(pictureFront, ref matrix);
float offsetY = e.Info.Height / 5;
foreach (DrawItem item in DrawData.DrawnPathsFront)
{
SKPath p = new SKPath(item.Path);
float offsetCalcY = (float)DrawHelper.GetOffsetCalculationsForFullDisplay(item.Area, offsetY);
float offsetCalcX = ((e.Info.Width - matrix.TransX) / 2.0f) * 0.375f;
p.Transform(SKMatrix.CreateScaleTranslation(0.25f, 0.25f, offsetCalcX, offsetCalcY));
_data.Add(new SvgData
{
BodyRegion = item.Area.ToString(),
IsFront = true,
StrokeColor = item.Paint.Color.ToFormsColor(),
StrokeWidth = item.Paint.StrokeWidth,
SvgPath = p.ToSvgPathData(),
ConcernName = item.Name
});
canvas.DrawPath(p, DrawHelper.GetScaledPaintObject(item.Paint.Color, item.Paint.StrokeWidth));
}
imageDataF = e.Surface.Snapshot();
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
var info = e.Info;
var canvas = e.Surface.Canvas;
canvas.Clear();
if (BackgroundColor != Color.Transparent)
{
var fillpaint = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = BackgroundColor.ToSKColor(),
};
var fillradius = Math.Min(info.Width, info.Height) / 2;
canvas.DrawCircle(info.Width / 2, info.Height / 2, fillradius, fillpaint);
}
var paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = BorderColor.ToSKColor(),
StrokeWidth = (float)BorderWidth,
};
var radius = (Math.Min(info.Width, info.Height) / 2) - paint.StrokeWidth;
canvas.DrawCircle(info.Width / 2, info.Height / 2, radius, paint);
}
/// <summary>
/// CanvasView PaintSurface maiking a panel
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
// paint object for circles
SKPaint circlePaint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = Color.FromHex("#75D59F").ToSKColor(),
StrokeWidth = 3,
IsAntialias = true
};
SKPaint filledCirclePaint = new SKPaint
{
Style = SKPaintStyle.StrokeAndFill,
Color = Color.FromHex("#75D59F").ToSKColor(),
StrokeWidth = 3,
IsAntialias = true
};
SKPaint dottendLinePaint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = Color.FromHex("#75D59F").ToSKColor(),
StrokeWidth = 3,
IsAntialias = true,
PathEffect = SKPathEffect.CreateDash(new float[] { 20, 15 }, 0)
};
float margin = 40;
float radius = 15;
float linePadding = 100;
canvas.DrawCircle(new SKPoint(margin, info.Height / 2), radius, filledCirclePaint);
canvas.DrawCircle(new SKPoint(margin, info.Height / 2), radius * 2, circlePaint);
canvas.DrawLine(
new SKPoint(linePadding, info.Height / 2),
new SKPoint(info.Width / 2 - linePadding, +info.Height / 2),
circlePaint
);
canvas.DrawCircle(new SKPoint(info.Width / 2, info.Height / 2), radius, circlePaint);
canvas.DrawLine(
new SKPoint(info.Width / 2 + linePadding, info.Height / 2),
new SKPoint(info.Width - linePadding, info.Height / 2),
dottendLinePaint
);
canvas.DrawCircle(new SKPoint(info.Width - margin, info.Height / 2), radius, circlePaint);
}
void canvasView_PaintSurface(System.Object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
var imageInfo = e.Info;
var surface = e.Surface;
var canvas = surface.Canvas;
canvas.Clear();
if (webBitmap != null)
{
canvas.DrawBitmap(webBitmap, new SKRect(0, 0, imageInfo.Width, imageInfo.Height));
}
foreach (var contour in completedPaths)
{
paint.Color = contour.Color;
if (contour.ToolType == "Pen")
{
canvas.DrawPath(contour.Path, paint);
}
else if (contour.ToolType == "Box")
{
x1 = contour.Path.Points.FirstOrDefault().X;
y1 = contour.Path.Points.FirstOrDefault().Y;
x2 = contour.Path.Points.Max(x => x.X);
y2 = contour.Path.Points.Max(y => y.Y);
canvas.DrawRect(new SKRect(x1, y1, x2, y2), paint);
}
else if (contour.ToolType == "Text")
{
if (contour.Text != null)
{
var x = contour.Path.Points.FirstOrDefault().X;
var y = contour.Path.Points.FirstOrDefault().Y;
textPaint.Color = contour.Color;
canvas.DrawText(contour.Text, x, y, textPaint);
}
else
{
if (Device.RuntimePlatform == Device.iOS)
{
Entry.Focus();
}
}
}
}
foreach (var path in inProgressPaths.Values)
{
canvas.DrawPath(path, paint);
}
}
private void DefaultCanvas_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
// Skia stuff happens
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
var minSize = Math.Min(info.Size.Height / 2, info.Size.Width / 2);
var rulesDistance = 5;
canvas.Clear();
SKRect containerRectangle = new SKRect(0, 0, minSize, minSize);
canvas.Translate((e.Info.Width / 2) - containerRectangle.MidX, (e.Info.Height / 2) - containerRectangle.MidY);
using (SKPath path = new SKPath())
{
path.AddArc(containerRectangle, startDegree, endDegree);
canvas.DrawPath(path, gaugleDefaultColor);
}
using (SKPath path = new SKPath())
{
var anglePercent = (endDegree * Percent) / 100;
path.AddArc(containerRectangle, startDegree, (float)anglePercent);
canvas.DrawPath(path, gaugleFillColor);
}
circleMidX = containerRectangle.MidX;
circleMidY = containerRectangle.MidY;
canvas.Translate(circleMidX, circleMidY);
canvas.DrawCircle(0, 0, 8, rectFillColor);
canvas.RotateDegrees(360);
if (usePercentage)
{
angle = Math.PI * (startDegree + (endDegree * Percent) / 100) / 180.0;
}
radius = containerRectangle.Height / 2;
cx = (float)(radius * Math.Cos(angle));
cy = (float)(radius * Math.Sin(angle));
canvas.DrawCircle(cx, cy, 35, rectFillColor); // x=cos(angle)*rayon et y =sin(angle)*rayon
canvas.RotateDegrees(startDegree - 45);
for (int angle = 0; angle <= endDegree; angle += 5)
{
var size = (float)(containerRectangle.Height / 2.5) + rulesDistance;
canvas.DrawLine(size, size, size + 10, size + 10, blackFillColor);
canvas.RotateDegrees(5);
}
}
private void onCanvasViewPaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKCanvas c = e.Surface.Canvas;
if (this.bitmap != null)
{
c.Clear();
c.DrawBitmap(this.bitmap, new SKPoint(0, 0));
}
}
private void onCanvasViewPaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKCanvas c = e.Surface.Canvas;
c.Clear();
drawBackgroundGrid(c);
c.SetMatrix(matrix);
if (this.Bitmap != null)
{
c.DrawBitmap(this.Bitmap, new SKPoint(0, 0));
}
}
void Handle_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
//throw new NotImplementedException();
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
//SKBitmap sKBitmap = SKBitmap.Decode(stream);
//canvas.DrawBitmap(sKBitmap, info.Rect);
}
private void Tela(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
e.Surface.Canvas.Clear();
SKPath linea = new SKPath();
SKPoint p = new SKPoint(50, 50);
linea.MoveTo(p);
p = new SKPoint(250, 50);
linea.LineTo(p);
p = new SKPoint(250, 350);
linea.LineTo(p);
p = new SKPoint(50, 350);
linea.LineTo(p);
p = new SKPoint(50, 48);
linea.LineTo(p);
SKPoint poligono = new SKPoint(70 + 62, -25 + 200);
linea.MoveTo(poligono);
p = new SKPoint(105 + 62, -25 + 200);
linea.LineTo(p);
p = new SKPoint(120 + 62, 5 + 200);
linea.LineTo(p);
p = new SKPoint(105 + 62, 35 + 200);
linea.LineTo(p);
p = new SKPoint(70 + 62, 35 + 200);
linea.LineTo(p);
p = new SKPoint(55 + 62, 5 + 200);
linea.LineTo(p);
p = new SKPoint(70 + 62, -25 + 200);
linea.LineTo(p);
SKPaint paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
Color = SKColors.Red,
StrokeWidth = 5,
};
e.Surface.Canvas.DrawPath(linea, paint);
}
private void PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
float max = 0;
foreach (TotalEntry ent in totalDict.Values)
{
if (ent.mileSum > max)
{
max = (float)ent.mileSum;
}
}
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKPaint paintA = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = Color.Red.ToSKColor(),
StrokeWidth = 3
};
SKPaint paintBG = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = Color.LightGray.ToSKColor(),
StrokeWidth = 3
};
SKPaint font = new SKPaint
{
Style = SKPaintStyle.Fill,
Color = Color.Black.ToSKColor(),
StrokeWidth = 10,
TextSize = 40 * info.Width / info.Height
};
canvas.DrawRect(0, 0, info.Width, info.Height, paintBG);
float width = (info.Width / ((totalDict.Values.Count * 2) + 1));
int i = 1;
foreach (TotalEntry ent in totalDict.Values)
{
float value = (float)ent.mileSum;
float perc = value / (max * 1.2f);
float height = info.Height * perc;
canvas.DrawRect(width * i, info.Height - height, width, height, paintA);
canvas.DrawText(ent.key.ToString().Substring(0, 3), width * i, info.Height - height, font);
i += 2;
}
}
private void PaintSurface2(SK.SKPaintSurfaceEventArgs e)
{
var canvas = e.Surface.Canvas;
canvas.Clear(SKColors.Green);
var canvasSize = e.Info.Rect;
var paint = new SKPaint
{
Color = SKColors.SkyBlue,
StrokeCap = SKStrokeCap.Round
};
//Path based on
//https://docs.microsoft.com/en-us/xamarin/graphics-games/skiasharp/introduction
var path = new SKPath();
path.MoveTo(71.4311121f, 56f);
path.CubicTo(68.6763107f, 56.0058575f, 65.9796704f, 57.5737917f, 64.5928855f, 59.965729f);
path.LineTo(43.0238921f, 97.5342563f);
path.CubicTo(41.6587026f, 99.9325978f, 41.6587026f, 103.067402f, 43.0238921f, 105.465744f);
path.LineTo(64.5928855f, 143.034271f);
path.CubicTo(65.9798162f, 145.426228f, 68.6763107f, 146.994582f, 71.4311121f, 147f);
path.LineTo(114.568946f, 147f);
path.CubicTo(117.323748f, 146.994143f, 120.020241f, 145.426228f, 121.407172f, 143.034271f);
path.LineTo(142.976161f, 105.465744f);
path.CubicTo(144.34135f, 103.067402f, 144.341209f, 99.9325978f, 142.976161f, 97.5342563f);
path.LineTo(121.407172f, 59.965729f);
path.CubicTo(120.020241f, 57.5737917f, 117.323748f, 56.0054182f, 114.568946f, 56f);
path.Close();
var pathSize = path.Bounds;
canvas.Translate(canvasSize.MidX, canvasSize.MidY);
var shortSideRatio = Math.Min(canvasSize.Width / pathSize.Width, canvasSize.Height / pathSize.Width);
canvas.Scale(0.9f * shortSideRatio);
canvas.RotateDegrees(rotation);
canvas.Translate(-pathSize.MidX, -pathSize.MidY);
canvas.DrawPath(path, paint);
path = SKPath.ParseSvgPathData("M71.4 78.75 L76.4 78.75 L92.99 101.5 L76.4 124.24 L71.4 124.25 L87.99 101.5 Z");
paint.Color = SKColors.White;
paint.Style = SKPaintStyle.Fill;
canvas.DrawPath(path, paint);
path = SKPath.ParseSvgPathData("M114.57 78.75 L109.54 78.75 L92.99 101.5 L109.57 124.24 L114.57 124.25 L97.99 101.5 Z");
canvas.DrawPath(path, paint);
}
private void CardBackground_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs args)
{
// seems that PaintSurface is called before the
// binding context is set sometimes
if (_viewModel == null)
{
return;
}
SKImageInfo info = args.Info;
SKSurface surface = args.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
// draw top hero color
canvas.DrawRoundRect(
rect: new SKRect(0, (float)_cardTopAnimPosition, info.Width, info.Height),
r: new SKSize(_cornerRadius, _cornerRadius),
paint: _heroPaint);
// work out the gradient needs to be
var gradientRect = new SKRect(0, _gradientTransitionY, info.Width,
_gradientTransitionY + _gradientHeight);
// create the gradient
var gradientPaint = new SKPaint()
{
Style = SKPaintStyle.Fill
};
gradientPaint.Shader = SKShader.CreateLinearGradient
(
start: new SKPoint(0, _gradientTransitionY),
end: new SKPoint(0, _gradientTransitionY + _gradientHeight),
colors: new SKColor[] { _heroColor, SKColors.White },
colorPos: new float[] { 0, 1 },
SKShaderTileMode.Clamp
);
// draw the gradient
canvas.DrawRect(gradientRect, gradientPaint);
// draw the white bit
SKRect bottomRect = new SKRect(0, _gradientTransitionY + _gradientHeight,
info.Width, info.Height);
canvas.DrawRect(bottomRect, new SKPaint()
{
Color = SKColors.White
});
}
private void Section_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
double wid = DeviceDisplay.MainDisplayInfo.Width;
double hei = DeviceDisplay.MainDisplayInfo.Height;
// get density
float density = info.Size.Width / (float)this.Width;
DrawSvgAtPoint(canvas, new SKPoint(0, 0), new Size(wid, hei), "ICA_Gospel_App.SVGs.Section1.S1E1.svg");
}
private void SKCanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
var skImageInfo = e.Info;
var skSurface = e.Surface;
var skCanvas = skSurface.Canvas;
var skCanvasWidth = skImageInfo.Width;
var skCanvasHeight = skImageInfo.Height;
skCanvas.Clear();
skCanvas.Translate((float)skCanvasWidth / 2, (float)skCanvasHeight / 2);
SKPaint skpaintWhiteStroke = new SKPaint()
{
Style = SKPaintStyle.Stroke,
Color = SKColors.Red,
StrokeWidth = 40,
IsAntialias = true,
StrokeCap = SKStrokeCap.Round
};
SKRect skRectangle = new SKRect();
skRectangle.Size = new SKSize(300, 300);
skRectangle.Location = new SKPoint(-150, -150);
_sweepAngle = 0 * scale + 360 * (1 - scale);
float startAngle = -90;
float sweepAngle = _sweepAngle; // (75 / 100) * 360
SKPath skPath = new SKPath();
skPath.AddArc(skRectangle, startAngle, sweepAngle);
skCanvas.DrawPath(skPath, skpaintWhiteStroke);
// filler animation
skpaintWhiteStroke.Style = SKPaintStyle.Fill;
skpaintWhiteStroke.Color = SKColors.DarkOrange;
_sweepRadius = 0 * scale + 130 * (1 - scale);
skCanvas.DrawCircle(0, 0, _sweepRadius, skpaintWhiteStroke);
}
private void CanvasView_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
SKImageInfo info = e.Info;
SKSurface surface = e.Surface;
SKCanvas canvas = surface.Canvas;
canvas.Clear();
SKRect rect = new SKRect();
rect.Top = (float)0;
rect.Bottom = (float)info.Height;
rect.Left = (float)0;
rect.Right = (float)info.Width;
SKPaint paint = new SKPaint()
{
Style = SKPaintStyle.StrokeAndFill,
StrokeWidth = 10,
IsAntialias = true,
};
SKPoint start = new SKPoint()
{
X = info.Width / 2,
Y = (float)0
};
SKPoint end = new SKPoint()
{
X = info.Width / 2,
Y = (float)rect.Bottom
};
paint.Shader = SKShader.CreateLinearGradient(
start,
end,
new SKColor[] { SKColors.Blue, SKColors.Transparent },
null,
SKShaderTileMode.Clamp
);
canvas.DrawRect(rect, paint);
}
private void PaintSample_PaintSurface(object sender, SkiaSharp.Views.Forms.SKPaintSurfaceEventArgs e)
{
// 1 - Getting current surface
var surface = e.Surface;
// 2 - Getting the canvas to draw
var canvas = surface.Canvas;
// 3. Clearing the canvas
canvas.Clear(SKColors.Bisque);
stroke.StrokeWidth = 2;
stroke.Style = SKPaintStyle.Stroke;
foreach (var touchPath in temporaryPaths)
{
canvas.DrawPath(touchPath.Value, stroke);
}
}