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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media;
#if WINDOWS_UWP
using WContentPresenter = Windows.UI.Xaml.Controls.ContentPresenter;
namespace Xamarin.Forms.Platform.UWP
#else
namespace Xamarin.Forms.Platform.WinRT
#endif
{
public class FormsButton : Windows.UI.Xaml.Controls.Button
{
public static readonly DependencyProperty BorderRadiusProperty = DependencyProperty.Register(nameof(BorderRadius), typeof(int), typeof(FormsButton),
new PropertyMetadata(default(int), OnBorderRadiusChanged));
public static readonly DependencyProperty BackgroundColorProperty = DependencyProperty.Register(nameof(BackgroundColor), typeof(Brush), typeof(FormsButton),
new PropertyMetadata(default(Brush), OnBackgroundColorChanged));
#if WINDOWS_UWP
WContentPresenter _contentPresenter;
#else
Border _border;
#endif
public Brush BackgroundColor
{
get
{
return (Brush)GetValue(BackgroundColorProperty);
}
set
{
SetValue(BackgroundColorProperty, value);
}
}
public int BorderRadius
{
get
{
return (int)GetValue(BorderRadiusProperty);
}
set
{
SetValue(BorderRadiusProperty, value);
}
}
protected override void OnApplyTemplate()
{
base.OnApplyTemplate();
#if WINDOWS_UWP
_contentPresenter = GetTemplateChild("ContentPresenter") as WContentPresenter;
#else
_border = GetTemplateChild("Border") as Border;
#endif
UpdateBackgroundColor();
UpdateBorderRadius();
}
static void OnBackgroundColorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
((FormsButton)d).UpdateBackgroundColor();
}
static void OnBorderRadiusChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
((FormsButton)d).UpdateBorderRadius();
}
void UpdateBackgroundColor()
{
Background = Color.Transparent.ToBrush();
#if WINDOWS_UWP
if (_contentPresenter != null)
_contentPresenter.Background = BackgroundColor;
#else
if (_border != null)
_border.Background = BackgroundColor;
#endif
}
void UpdateBorderRadius()
{
#if WINDOWS_UWP
if (_contentPresenter != null)
_contentPresenter.CornerRadius = new CornerRadius(BorderRadius);
#else
if (_border != null)
_border.CornerRadius = new CornerRadius(BorderRadius);
#endif
}
}
}
|
