protected SizeF GetIntrinsicSize(float defaultWidth = 100, float defaultHeight = 44)
{
var minHeight = TypedVirtualView.GetEnvironment <float?>(SkiaEnvironmentKeys.IntrinsicSize.Height) ?? defaultHeight;
var minWidth = TypedVirtualView.GetEnvironment <float?>(SkiaEnvironmentKeys.IntrinsicSize.Width) ?? defaultWidth;
return(new SizeF(minWidth, minHeight));
}
protected override void DrawBackground(SKCanvas canvas, Color defaultBackgroundColor, RectangleF dirtyRect)
{
var defaultColor = TypedVirtualView.GetBackgroundColor(Color.Transparent, state: ControlState.Default);
Color calculateDefaultBackgroundColor()
{
var c = defaultColor;
c = CurrentState switch
{
ControlState.Disabled => c.Lerp(Color.Grey, .5),
ControlState.Hovered => c.Lerp(Color.Grey, .1),
ControlState.Pressed => c.Lerp(Color.Grey, .5),
_ => c
};
return(c);
};
var backgroundColor = TypedVirtualView.GetBackgroundColor(state: CurrentState) ?? calculateDefaultBackgroundColor();
var radius = (this).GetEnvironment <float>(accentRadius);
if (radius <= 0 || radius >= 1)
{
base.DrawBackground(canvas, defaultColor, dirtyRect);
base.DrawBackground(canvas, backgroundColor, dirtyRect);
return;
}
base.DrawBackground(canvas, defaultColor, dirtyRect);
var paint = new SKPaint();
paint.Color = backgroundColor.ToSKColor();
var circleRadius = 5f.Lerp(Math.Max(dirtyRect.Width, dirtyRect.Height) * 2f, radius);
canvas.DrawCircle(animationPoint, circleRadius, paint);
}
public override void DragInteraction(PointF[] points)
{
base.DragInteraction(points);
if (!isTracking)
{
return;
}
//Only track the first point;
var point = points[0];
var percent = (point.X - TrackRect.X) / TrackRect.Width;
TypedVirtualView.PercentChanged(percent);
}
public virtual void DrawThumb(SKCanvas canvas, float progress, float hSpace, RectangleF rectangle)
{
using var paint = new SKPaint();
var fillColor = TypedVirtualView.GetThumbColor(defaultThumbColor, CurrentState).ToSKColor();
ThumbRect.X = (rectangle.Width - (hSpace * 2) - ThumbRect.Width) * progress + hSpace;
ThumbRect.Y = rectangle.Y + (rectangle.Height - ThumbRect.Height) / 2;
TouchTargetRect.Center(ThumbRect.Center());
var knobRect = ThumbRect.ToSKRect();
using var knobPath = new SKPath();
knobPath.Reset();
knobPath.AddOval(knobRect, SKPathDirection.Clockwise);
paint.Reset();
paint.IsAntialias = true;
paint.Style = SKPaintStyle.Fill;
paint.Color = fillColor;
canvas.DrawPath(knobPath, paint);
}
public virtual void DrawProgress(SKCanvas canvas, float progress, float hSpace, RectangleF rectangle)
{
using var paint = new SKPaint();
var fillColor = TypedVirtualView.GetProgressColor(defaultProgressColor, CurrentState).ToSKColor();
var width = (rectangle.Width - (hSpace * 2)) * progress;
var height = defaultHeight;
var y = rectangle.Y + ((rectangle.Height - height) / 2);
var highlightRect = new RectangleF(hSpace, y, width, height).ToSKRect();
var trackRect = highlightRect;
using var trackPath = new SKPath();
trackPath.Reset();
trackPath.AddRoundRect(trackRect, 1f, 1f, SKPathDirection.Clockwise);
paint.Reset();
paint.IsAntialias = true;
paint.Style = SKPaintStyle.Fill;
paint.Color = fillColor;
canvas.DrawPath(trackPath, paint);
}
public virtual void DrawTrack(SKCanvas canvas, float hSpace, RectangleF rectangle)
{
using var paint = new SKPaint();
var fillColor = TypedVirtualView.GetTrackColor(defaultTrackColor, CurrentState).ToSKColor();
TrackRect.Width = rectangle.Width - (hSpace * 2);
TrackRect.Height = defaultHeight;
TrackRect.Y = rectangle.Y + ((rectangle.Height - TrackRect.Height) / 2);
TrackRect.X = hSpace;
var highlightRect = TrackRect.ToSKRect();
//var highlightRect = rectangle.ApplyPadding(new Thickness(hSpace, vSpace)).ToSKRect();
using var highlightPath = new SKPath();
highlightPath.Reset();
highlightPath.AddRoundRect(highlightRect, 1f, 1f, SKPathDirection.Clockwise);
paint.Reset();
paint.IsAntialias = true;
paint.Style = SKPaintStyle.Fill;
paint.Color = fillColor;
canvas.DrawPath(highlightPath, paint);
}
public override string AccessibilityText() => (TypedVirtualView?.GetPercent() ?? 0).ToString("P");
