/// <summary>
/// Event handler for a value change on a radio button on this pie.
/// </summary>
/// <param name="sender"></param>
/// <param name="slice"></param>
private void PieSlice_ChangeSelectedEvent(object sender, PieSlice slice)
{
if (slice != null && slice.OriginalRadialMenuButton.Type == RadialMenuButton.ButtonType.Radio)
{
SelectedItem = slice.OriginalRadialMenuButton;
}
foreach (var ps in PieSlices.Where(ps => ps.OriginalRadialMenuButton.Type == RadialMenuButton.ButtonType.Radio &&
ps.OriginalRadialMenuButton.MenuSelected && ps.StartAngle != slice.StartAngle))
{
ps.OriginalRadialMenuButton.MenuSelected = false;
ps.UpdateSliceForRadio();
}
}
/// <summary>
/// Draw or redraw the pie by generating PieSlices from passed RadialMenuButtons.
/// Previously created PieSlices on this Pie will be thrown away.
/// </summary>
public void Draw()
{
foreach (var pieSlice in PieSlices)
{
pieSlice.ChangeMenuRequestEvent -= SourceRadialMenu.ChangeMenu;
pieSlice.ChangeSelectedEvent -= PieSlice_ChangeSelectedEvent;
}
PieSlices.Clear();
var startAngle = StartAngle;
// Setup Background Ellipse
if (SourceRadialMenu.HasBackgroundEllipse)
{
BackgroundEllipse.Height = Height;
BackgroundEllipse.Width = Width;
BackgroundEllipse.StrokeThickness = SourceRadialMenu.OuterThickness;
BackgroundEllipse.Stroke = new SolidColorBrush(SourceRadialMenu.OuterDisabledColor);
BackgroundEllipse.Fill = new SolidColorBrush(SourceRadialMenu.BackgroundEllipseFill);
}
// Draw PieSlices for each Slice Object
foreach (var slice in Slices)
{
var sliceSize = 360.00 / Slices.Count;
var pieSlice = new PieSlice
{
StartAngle = startAngle,
Angle = sliceSize,
Radius = Size / 2,
Height = Height,
Width = Width,
// Arc & Stroke
StrokeColor = slice.StrokeColor ?? SourceRadialMenu.InnerNormalColor,
StrokeThickness = slice.StrokeThickness ?? 0,
OuterArcThickness = slice.OuterThickness ?? SourceRadialMenu.OuterThickness,
// The defaults below use OneNote-like purple colors
InnerNormalColor = slice.InnerNormalColor ?? SourceRadialMenu.InnerNormalColor,
InnerHoverColor = slice.InnerHoverColor ?? SourceRadialMenu.InnerHoverColor,
InnerTappedColor = slice.InnerTappedColor ?? SourceRadialMenu.InnerTappedColor,
InnerReleasedColor = slice.InnerReleasedColor ?? SourceRadialMenu.InnerReleasedColor,
OuterNormalColor = slice.OuterNormalColor ?? SourceRadialMenu.OuterNormalColor,
OuterDisabledColor = slice.OuterDisabledColor ?? SourceRadialMenu.OuterDisabledColor,
OuterHoverColor = slice.OuterHoverColor ?? SourceRadialMenu.OuterHoverColor,
OuterTappedColor = slice.OuterTappedColor ?? SourceRadialMenu.OuterTappedColor,
IndicationArcStrokeThickness = slice.IndicationArcStrokeThickness ?? SourceRadialMenu.IndicationArcStrokeThickness,
IndicationArcColor = slice.IndicationArcColor ?? SourceRadialMenu.IndicationArcColor,
IndicationArcDistanceFromEdge = slice.IndicationArcDistanceFromEdge ?? SourceRadialMenu.IndicationArcDistanceFromEdge,
UseIndicationArc = slice.UseIndicationArc ?? SourceRadialMenu.UseIndicationArcs,
// Label
IconSize = slice.IconSize,
Icon = slice.Icon,
IconFontFamily = slice.IconFontFamily,
IconForegroundBrush = slice.IconForegroundBrush,
IconImage = slice.IconImage,
IconImageSideLength = (Size / 2) * .25,
IsLabelHidden = slice.IsLabelHidden,
Label = slice.Label,
LabelSize = slice.LabelSize,
// Original Button
OriginalRadialMenuButton = slice,
// Access Keys
OuterAccessKey = slice.OuterAccessKey,
InnerAccessKey = slice.InnerAccessKey
};
if (slice.Type == RadialMenuButton.ButtonType.Custom)
{
pieSlice.CustomValue = (string)slice.Value;
}
// Allow slice to call the change request method on the radial menu
pieSlice.ChangeMenuRequestEvent += SourceRadialMenu.ChangeMenu;
// Allow slice to call the change selected request to clear all other radio buttons
pieSlice.ChangeSelectedEvent += PieSlice_ChangeSelectedEvent;
PieSlices.Add(pieSlice);
startAngle += sliceSize;
}
FindSelectedPieSlice();
}
