public bool Handles(PublishedEvent evt)
{
return(EventHandlers.Any(c => c.Handles(evt)));
}
/**
* Used to generate a UIComponent making use of all applied constraints and modifiers.
* Modifiers and constraints are applied in the same order as they are defined
*/
public void Build(UILayer layer)
{
#region Inherit/Defaults
DefaultAttributes.X = Parent?.DefaultAttributes.X ?? 0;
DefaultAttributes.Y = Parent?.DefaultAttributes.Y ?? 0;
DefaultAttributes.Width = Parent?.DefaultAttributes.Width ?? DefaultAttributes.Width;
DefaultAttributes.Height = Parent?.DefaultAttributes.Height ?? DefaultAttributes.Height;
if (DefaultAttributes.StackDirection == StackDirection.Inherit)
{
DefaultAttributes.StackDirection = Parent?.DefaultAttributes.StackDirection ?? StackDirection.None;
}
if (DefaultAttributes.Overflow == Overflow.Inherit)
{
DefaultAttributes.Overflow = Parent?.DefaultAttributes.Overflow ?? Overflow.Show;
}
if (DefaultAttributes.Sizing == Sizing.Inherit)
{
DefaultAttributes.Sizing = Parent?.DefaultAttributes.Sizing ?? Sizing.Proportion;
}
if (DefaultAttributes.Position == Position.Inherit)
{
DefaultAttributes.Position = Parent?.DefaultAttributes.Position ?? Position.Relative;
}
if (DefaultAttributes.JustifyText == JustifyText.Inherit)
{
DefaultAttributes.JustifyText = Parent?.DefaultAttributes.JustifyText ?? JustifyText.Start;
}
if (DefaultAttributes.TextWrap == TextWrap.Inherit)
{
DefaultAttributes.TextWrap = Parent?.DefaultAttributes.TextWrap ?? TextWrap.Wrap;
}
if (DefaultAttributes.FontScaleMode == FontScaleMode.Inherit)
{
DefaultAttributes.FontScaleMode = Parent?.DefaultAttributes.FontScaleMode ?? FontScaleMode.FontSizeScale;
}
if (DefaultAttributes.VerticalAlignText == VerticalAlignText.Inherit)
{
DefaultAttributes.VerticalAlignText = Parent?.DefaultAttributes.VerticalAlignText ?? VerticalAlignText.Start;
}
#endregion
#region Apply Contraints/ Build Indexes
if (EventHandlers.Any())
{
layer.AddEventComponent(this);
}
if (Focusable)
{
layer.AddTabIndexComponent(this);
}
if (Updateable)
{
layer.AddUpdateIndexComponent(this);
}
#endregion
//If the parent node is null then we stop here
if (Parent != null)
{
if (Parent.DefaultAttributes.Sizing == Sizing.Proportion)
{
#region Proportional Container Positioning
int totalProportionNumber = Parent.Children.Sum(x => x.DefaultAttributes.Grow);
int leadingProportionNumber = Parent.Children.TakeWhile(child => child.Index != Index).Sum(x => x.DefaultAttributes.Grow);
//Correctly render in the correct stack direction
switch (Parent.DefaultAttributes.StackDirection)
{
case StackDirection.Horizontal:
int oneProportionWidth = DefaultAttributes.Width / totalProportionNumber;
DefaultAttributes.X += leadingProportionNumber * oneProportionWidth;
DefaultAttributes.OffsetX = leadingProportionNumber * oneProportionWidth;
DefaultAttributes.Width = oneProportionWidth * DefaultAttributes.Grow;
break;
case StackDirection.Vertical:
int oneProportionHeight = DefaultAttributes.Height / totalProportionNumber;
DefaultAttributes.Y += leadingProportionNumber * oneProportionHeight;
DefaultAttributes.OffsetY = leadingProportionNumber * oneProportionHeight;
DefaultAttributes.Height = oneProportionHeight * DefaultAttributes.Grow;
break;
}
#endregion
}
else if (Parent.DefaultAttributes.Sizing == Sizing.Dimension)
{
#region Dimensional Container Positioning
switch (Parent.DefaultAttributes.StackDirection)
{
case StackDirection.Horizontal:
int nextWidth = Index * Parent.Children[0].DefaultAttributes.Width;
DefaultAttributes.X += nextWidth;
DefaultAttributes.OffsetX = nextWidth;
break;
case StackDirection.Vertical:
int nextHeight = Index * Parent.Children[0].DefaultAttributes.Height;
DefaultAttributes.Y += nextHeight;
DefaultAttributes.OffsetY = nextHeight;
break;
}
#endregion
}
}
foreach (UIConstraint uiConstraint in Constraints)
{
uiConstraint.Apply(this);
}
RenderAttributes = DefaultAttributes.CascadeAttributes(DefaultAttributes);
}
