blob: 2e1791619976dc94af0a3793bc5ecfc729958e52 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
using System.ComponentModel;
using System.Drawing;
using AppKit;
using CoreImage;
namespace Xamarin.Forms.Platform.MacOS
{
public class ActivityIndicatorRenderer : ViewRenderer<ActivityIndicator, NSProgressIndicator>
{
static CIColorPolynomial s_currentColorFilter;
static NSColor s_currentColor;
protected override void OnElementChanged(ElementChangedEventArgs<ActivityIndicator> e)
{
if (e.NewElement != null)
{
if (Control == null)
SetNativeControl(new NSProgressIndicator(RectangleF.Empty) { Style = NSProgressIndicatorStyle.Spinning });
UpdateColor();
UpdateIsRunning();
}
base.OnElementChanged(e);
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (e.PropertyName == ActivityIndicator.ColorProperty.PropertyName)
UpdateColor();
else if (e.PropertyName == ActivityIndicator.IsRunningProperty.PropertyName)
UpdateIsRunning();
}
void UpdateColor()
{
var color = Element.Color;
if (s_currentColorFilter == null && color.IsDefault)
return;
if (color.IsDefault)
Control.ContentFilters = new CIFilter[0];
var newColor = Element.Color.ToNSColor();
if (Equals(s_currentColor, newColor))
return;
s_currentColor = newColor;
s_currentColorFilter = new CIColorPolynomial
{
RedCoefficients = new CIVector(s_currentColor.RedComponent),
BlueCoefficients = new CIVector(s_currentColor.BlueComponent),
GreenCoefficients = new CIVector(s_currentColor.GreenComponent)
};
Control.ContentFilters = new CIFilter[] { s_currentColorFilter };
}
void UpdateIsRunning()
{
if (Element.IsRunning)
Control.StartAnimation(this);
else
Control.StopAnimation(this);
}
}
}
|