protected StyleSheetCollection GetParentStyleSheets(object from)
{
StyleSheetCollection styleSheets = new StyleSheetCollection();
if (from == null)
{
return(styleSheets);
}
var current = GetParent(from);
while (current != null)
{
var styleSheet = GetStyleSheet(current);
if (!ReferenceEquals(styleSheet, null))
{
styleSheets.Add(styleSheet);
}
else if (current is IStyleSheetHolder styleSheetHolder)
{
if (styleSheetHolder.AttachedStyleSheet != null)
{
styleSheets.Add(styleSheetHolder.AttachedStyleSheet);
}
}
current = GetParent(current);
}
return(styleSheets);
}
private StyleSheetCollection UninitializeBaseStyleSheet(StyleSheetCollection styleSheetCollection)
{
if (styleSheetCollection == null)
{
return(null);
}
foreach (var added in styleSheetCollection)
{
added.PropertyChanged -= BaseStyleSheet_PropertyChanged;
}
styleSheetCollection.CollectionChanged -= BaseStyleSheets_CollectionChanged;
return(styleSheetCollection);
}
protected StyleSheetCollection GetParentStyleSheets(object from)
{
StyleSheetCollection styleSheets = new StyleSheetCollection();
if (from == null)
{
return(styleSheets);
}
var current = GetParent(from);
while (current != null)
{
var styleSheet = GetStyleSheet(current);
if (styleSheet != null)
{
styleSheets.Add(styleSheet);
}
current = GetParent(current);
}
return(styleSheets);
}