Reputation: 647
I found this implementation of CircularProgressBar
.
This is the .cs
file:
public partial class CircularProgressBar : UserControl
{
public CircularProgressBar()
{
InitializeComponent();
Angle = (Percentage * 360) / 100;
RenderArc();
}
public int Radius
{
get { return (int)GetValue(RadiusProperty); }
set { SetValue(RadiusProperty, value); }
}
public Brush SegmentColor
{
get { return (Brush)GetValue(SegmentColorProperty); }
set { SetValue(SegmentColorProperty, value); }
}
public int StrokeThickness
{
get { return (int)GetValue(StrokeThicknessProperty); }
set { SetValue(StrokeThicknessProperty, value); }
}
public double Percentage
{
get { return (double)GetValue(PercentageProperty); }
set { SetValue(PercentageProperty, value); }
}
public double Angle
{
get { return (double)GetValue(AngleProperty); }
set { SetValue(AngleProperty, value); }
}
// Using a DependencyProperty as the backing store for Percentage. This enables animation, styling, binding, etc...
public static readonly DependencyProperty PercentageProperty =
DependencyProperty.Register("Percentage", typeof(double), typeof(CircularProgressBar), new PropertyMetadata(65d, new PropertyChangedCallback(OnPercentageChanged)));
// Using a DependencyProperty as the backing store for StrokeThickness. This enables animation, styling, binding, etc...
public static readonly DependencyProperty StrokeThicknessProperty =
DependencyProperty.Register("StrokeThickness", typeof(int), typeof(CircularProgressBar), new PropertyMetadata(1));
// Using a DependencyProperty as the backing store for SegmentColor. This enables animation, styling, binding, etc...
public static readonly DependencyProperty SegmentColorProperty =
DependencyProperty.Register("SegmentColor", typeof(Brush), typeof(CircularProgressBar), new PropertyMetadata(new SolidColorBrush(Colors.Red)));
// Using a DependencyProperty as the backing store for Radius. This enables animation, styling, binding, etc...
public static readonly DependencyProperty RadiusProperty =
DependencyProperty.Register("Radius", typeof(int), typeof(CircularProgressBar), new PropertyMetadata(105, new PropertyChangedCallback(OnPropertyChanged)));
// Using a DependencyProperty as the backing store for Angle. This enables animation, styling, binding, etc...
public static readonly DependencyProperty AngleProperty =
DependencyProperty.Register("Angle", typeof(double), typeof(CircularProgressBar), new PropertyMetadata(120d, new PropertyChangedCallback(OnPropertyChanged)));
private static void OnPercentageChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
CircularProgressBar circle = sender as CircularProgressBar;
circle.Angle = (circle.Percentage * 270) / 100;
}
private static void OnPropertyChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
CircularProgressBar circle = sender as CircularProgressBar;
circle.RenderArc();
}
public void RenderArc()
{
Point startPoint = new Point(Radius, 0);
Point endPoint = ComputeCartesianCoordinate(Angle, Radius);
endPoint.X += Radius;
endPoint.Y += Radius;
pathRoot.Width = Radius * 2 + StrokeThickness;
pathRoot.Height = Radius * 2 + StrokeThickness;
pathRoot.Margin = new Thickness(StrokeThickness, StrokeThickness, 0, 0);
bool largeArc = Angle > 180.0;
Size outerArcSize = new Size(Radius, Radius);
pathFigure.StartPoint = startPoint;
if (startPoint.X == Math.Round(endPoint.X) && startPoint.Y == Math.Round(endPoint.Y))
endPoint.X -= 0.01;
arcSegment.Point = endPoint;
arcSegment.Size = outerArcSize;
arcSegment.IsLargeArc = largeArc;
}
private Point ComputeCartesianCoordinate(double angle, double radius)
{
// convert to radians
double angleRad = (Math.PI / 180.0) * (angle - 90);
double x = radius * Math.Cos(angleRad);
double y = radius * Math.Sin(angleRad);
return new Point(x, y);
}
}
Because i didn't want complete Circular
but only half one i have changed this:
private static void OnPercentageChanged(DependencyObject sender, DependencyPropertyChangedEventArgs args)
{
CircularProgressBar circle = sender as CircularProgressBar;
circle.Angle = (circle.Percentage * 360) / 100;
}
And put the value of 180
instead of 360
.
Now i want to add the same control in my application but this time i want this Circular
to be in complete Circle
so my question is how can i do that ?
Upvotes: 1
Views: 52
Reputation: 9713
You can create another dependency property which will act as the mode for the circular progress bar.
public enum Modes
{
Full = 360,
Half = 180
}
public Modes CircularMode
{
get { return (Modes)GetValue(CircularModeProperty); }
set { SetValue(CircularModeProperty, value); }
}
public static readonly DependencyProperty CircularModeProperty =
DependencyProperty.Register("CircularMode", typeof(Modes), typeof(CircularProgressBar), new PropertyMetadata(Modes.Full));
You can then use this value in your calculation:
circle.Angle = (circle.Percentage * (int)circle.CircularMode) / 100;
Usage:
<xyz:CircularProgressBar CircularMode="Half" ...
Or
<xyz:CircularProgressBar CircularMode="Full" ...
Note: 'xyz' is just an example namespace definition, this will very likely be different in your application.
Upvotes: 1