private static void SetActive(FluidGridViewTriggerCollection triggers, WrapGridReference reference)
{
if (triggers.Owner.ItemsPanelRoot == null || reference == null)
{
return;
}
var owner = triggers.Owner;
//var paddingNear = reference.Orientation == Orientation.Horizontal
// ? owner.Padding.Left
// : owner.Padding.Top;
//var paddingFar = reference.Orientation == Orientation.Horizontal
// ? owner.Padding.Right
// : owner.Padding.Bottom;
var parentLength = reference.Orientation == Orientation.Horizontal
? owner.ItemsPanelRoot.ActualWidth
: owner.ItemsPanelRoot.ActualHeight;
FluidGridViewTriggerBase trigger = null;
foreach (var child in triggers)
{
if (child.MaybeActive(parentLength))
{
trigger = child;
}
}
if (trigger != null)
{
//var itemLength = trigger.GetItemLength(parentLength - paddingNear - paddingFar);
var itemLength = trigger.GetItemLength(parentLength);
if (reference.Orientation == Orientation.Horizontal)
{
reference.ItemWidth = itemLength;
}
else
{
reference.ItemHeight = itemLength;
}
var orientationOnly = GetOrientationOnly(owner);
if (!orientationOnly)
{
if (reference.Orientation == Orientation.Horizontal)
{
reference.ItemHeight = itemLength;
}
else
{
reference.ItemWidth = itemLength;
}
}
}
}
private static WrapGridReference GetReference(DependencyObject obj)
{
var sender = obj as ItemsControl;
var value = (WrapGridReference)obj.GetValue(ReferenceProperty);
if (value == null)
{
value = new WrapGridReference(sender.ItemsPanelRoot);
obj.SetValue(ReferenceProperty, value);
}
return(value);
}
private static void SetReference(DependencyObject obj, WrapGridReference value)
{
obj.SetValue(ReferenceProperty, value);
}
