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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using RealTimeGraphEx.Models;
using RealTimeGraphEx.Enums;
namespace RealTimeGraphEx.FastGraphs
{
public class RealTimeGraphExEllipseScroll : RealTimeGraphExLineScroll
{
#region Cross Thread Fields
protected OpacityTypeEnum _opacityAnimationType;
protected int _ellipseXRadius;
protected int _ellipseYRadius;
#endregion
#region Constructors
public RealTimeGraphExEllipseScroll()
: base()
{
}
#endregion
#region Properties
public OpacityTypeEnum OpacityAnimationType
{
get { return (OpacityTypeEnum)GetValue(OpacityAnimationTypeProperty); }
set { SetValue(OpacityAnimationTypeProperty, value); }
}
public static readonly DependencyProperty OpacityAnimationTypeProperty =
DependencyProperty.Register("OpacityAnimationType", typeof(OpacityTypeEnum), typeof(RealTimeGraphExEllipseScroll), new PropertyMetadata(OpacityTypeEnum.None, new PropertyChangedCallback(CrossModelChanged)));
public int EllipseXRadius
{
get { return (int)GetValue(EllipseXRadiusProperty); }
set { SetValue(EllipseXRadiusProperty, value); }
}
public static readonly DependencyProperty EllipseXRadiusProperty =
DependencyProperty.Register("EllipseXRadius", typeof(int), typeof(RealTimeGraphExEllipseScroll), new PropertyMetadata(5));
public int EllipseYRadius
{
get { return (int)GetValue(EllipseYRadiusProperty); }
set { SetValue(EllipseYRadiusProperty, value); }
}
public static readonly DependencyProperty EllipseYRadiusProperty =
DependencyProperty.Register("EllipseYRadius", typeof(int), typeof(RealTimeGraphExEllipseScroll), new PropertyMetadata(5));
#endregion
#region Override Methods
protected override void OnSetCrossThreadFields()
{
base.OnSetCrossThreadFields();
this.Dispatcher.Invoke(() =>
{
_opacityAnimationType = OpacityAnimationType;
_ellipseXRadius = EllipseXRadius;
_ellipseYRadius = EllipseYRadius;
}, System.Windows.Threading.DispatcherPriority.Send);
}
/// <summary>
/// Draw the actual polygon on the image.
/// </summary>
/// <param name="bmp"></param>
protected override void OnDrawVisuals(WriteableBitmap bmp)
{
Color stroke = _graphController.dataSeries.GetStrokeColor() != null ? _graphController.dataSeries.GetStrokeColor().Value : _stroke;
Color fill = _graphController.dataSeries.GetFillColor() != null ? _graphController.dataSeries.GetFillColor().Value : _fill;
double scale = GetPolygonScaleFactor();
for (int i = 0; i < graphPolygon.Count; i++)
{
var point = graphPolygon[i];
Color processedLineColor = stroke;
Color processedFillColor = fill;
if (_opacityAnimationType == OpacityTypeEnum.FadeOut)
{
byte opacity = (byte)((((i) * 100 / _maxPoints) * 255) / 100);
processedLineColor.A = opacity;
processedFillColor.A = opacity;
}
if (_fillGraph)
{
bmp.FillEllipseCentered((int)(i * scale), (int)ConvertYToImageYFliped(point), _ellipseXRadius, _ellipseYRadius, processedFillColor);
}
bmp.DrawEllipseCentered((int)(i * scale), (int)ConvertYToImageYFliped(point), _ellipseXRadius, _ellipseYRadius, processedLineColor);
}
}
#endregion
}
}
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