public void Draw()
{
if (SelectedItem == null) return;
if (gArcs == null) return;
gArcs.Children.Clear();
var a = 360.0/Segments;
if (SelectedItem.Element != null)
{
ccCenter.Content = SelectedItem.Element;
pBack.Visibility = Visibility.Collapsed;
//ccCenter.Visibility = Visibility.Visible;
}
else if (SelectedItem.Icon != null && SelectedItem == RootItem)
{
iCenterIcon.Source = new BitmapImage(new Uri(SelectedItem.Icon, UriKind.RelativeOrAbsolute));
iCenterIcon.Visibility = Visibility.Visible;
pBack.Visibility = Visibility.Collapsed;
}
else
{
iCenterIcon.Visibility = Visibility.Collapsed;
pBack.Visibility = Visibility.Visible;
//ccCenter.Visibility = Visibility.Collapsed;
}
if (!Open)
{
BackgroundBrush = null;
return;
}
BackgroundBrush = Brushes.White;
for (var i = 0; i < Segments; i++)
{
var mi = SelectedItem.Items.FirstOrDefault(k => k.Position == i);
var s = new Arc
{
Width = Size,
Height = Size,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Stretch = Stretch.None,
StartAngle = i*a,
StrokeThickness = 0,
Stroke = null,
EndAngle = (i + 1)*a - 1
};
if (mi != null && mi.Items != null && mi.Items.Count > 0)
{
s.Fill = AccentBrush;
s.MouseDown += (e, si) => SelectItem(mi);
s.TouchDown += (e, si) => SelectItem(mi);
}
else
{
s.Fill = SecondAccentBrush;
}
s.ArcThickness = 0;
s.ArcThicknessUnit = UnitType.Pixel;
gArcs.Children.Add(s);
s.BeginAnimation(Arc.ArcThicknessProperty,
new DoubleAnimation(ArrowArcSize, new Duration(new TimeSpan(0, 0, 0, 0, 200))));
const double dDegToRad = Math.PI/180.0;
if (mi == null) continue;
var f = new Arc
{
Width = Size - (ArrowArcSize*2) - 3,
Height = Size - (ArrowArcSize*2) - 3,
HorizontalAlignment = HorizontalAlignment.Center,
VerticalAlignment = VerticalAlignment.Center,
Stretch = Stretch.None,
StartAngle = i*a,
StrokeThickness = 0,
Stroke = null,
EndAngle = (i + 1)*a - 1,
Tag = i
};
if (mi.Fill == null) mi.Fill = Brushes.Transparent;
f.Fill = mi.Fill;
f.ArcThickness = ItemSize;
f.ArcThicknessUnit = UnitType.Pixel;
f.MouseDown += (sender, e) => SelectItem(mi);
//var eventAsObservable = Observable.FromEventPattern<TouchEventArgs>(f, "TouchDown");
//eventAsObservable.Throttle(TimeSpan.FromMilliseconds(200)).Subscribe(k => Execute.OnUIThread(() => SelectItem(mi)));
// Only subscribe to TouchDown on Windows 7: On Windows 8, it causes
var win8Version = new Version(6, 2, 9200, 0);
if (Environment.OSVersion.Platform == PlatformID.Win32NT &&
Environment.OSVersion.Version < win8Version)
{
f.TouchDown += (e, si) => SelectItem(mi);
}
//f.TouchDown += (sender, e) => SelectItem(mi);
gArcs.Children.Add(f);
f.UpdateLayout();
var sp = new StackPanel {Opacity = 0, IsHitTestVisible = false};
if (mi.Element != null)
{
var vb = new Viewbox {Width = 20, Height = 20, Stretch = Stretch.Uniform};
var pa = new Path {Data = Geometry.Parse(mi.Element), Fill = Brushes.Black};
vb.Child = pa;
sp.Children.Add(vb);
}
else if (!string.IsNullOrEmpty(mi.Icon))
{
var img = new Image {Width = 20, Height = 20, Stretch = Stretch.UniformToFill};
var binding = new Binding {Source = mi, Path = new PropertyPath("Icon"), Mode = BindingMode.OneWay};
//img.Source = new BitmapImage(new Uri(mi.Icon, UriKind.RelativeOrAbsolute));
img.SetBinding(Image.SourceProperty, binding);
sp.Children.Add(img);
}
else
{
var b = new Border {Background = null, Width = 20, Height = 20};
sp.Children.Add(b);
}
var tb = new TextBlock {Text = mi.Title};
var bind = new Binding {Source = mi, Path = new PropertyPath("Title"), Mode = BindingMode.OneWay};
tb.SetBinding(TextBlock.TextProperty, bind);
var r = MenuCenterSize/2 + ItemSize - 10;
var dX = r*Math.Sin((i + 0.5)*a*dDegToRad);
// We invert the Y coordinate, because the origin in controls
// is the upper left corner, rather than the lower left
var dY = -r*Math.Cos((i + 0.5)*a*dDegToRad);
tb.Foreground = Brushes.Black;
tb.FontSize = 9;
f.TranslatePoint(new Point(ItemSize/2, ItemSize/2), gArcs);
tb.TextAlignment = TextAlignment.Center;
tb.HorizontalAlignment = HorizontalAlignment.Center;
sp.RenderTransform = new TranslateTransform(dX, dY + Size/2 - 15);
sp.Tag = i;
sp.Children.Add(tb);
gArcs.Children.Add(sp);
sp.BeginAnimation(OpacityProperty,
new DoubleAnimation(1.0, new Duration(new TimeSpan(0, 0, 0, 0, 200))));
if (mi.Items == null || mi.Items.Count <= 0) continue;
var rp = new RegularPolygon
{
IsHitTestVisible = false,
PointCount = 3,
Width = 8,
Height = 8,
Fill = Brushes.White,
Margin = new Thickness(-4, 0, 0, 0)
};
var r2 = Size/2 - (ArrowArcSize/2) + (rp.Width/2);
rp.RenderTransform = new TransformGroup
{
Children = new TransformCollection
{
new RotateTransform((i + 0.5)*a),
new TranslateTransform(
r2*Math.Sin((i + 0.5)*a*dDegToRad) + 5,
-r2*Math.Cos((i + 0.5)*a*dDegToRad) + 5
)
}
};
gArcs.Children.Add(rp);
}
//if (SelectedItem.Items == null || SelectedItem.Items.Count <= 0) return;
//foreach (var i in SelectedItem.Items)
// if (i.Fill != null)
// {
// }
}
