/// <devdoc>
/// Copies non-blank elements from the specified style, but will not overwrite
/// any existing style elements.
/// </devdoc>
public override void MergeWith(Style s)
{
if (s != null)
{
if (IsEmpty)
{
// Merging with an empty style is equivalent to copying,
// which is more efficient.
CopyFrom(s);
return;
}
base.MergeWith(s);
TreeNodeStyle tns = s as TreeNodeStyle;
if (tns != null && !tns.IsEmpty)
{
// Since we're already copying the registered CSS class in base.MergeWith, we don't
// need to any attributes that would be included in that class.
if (s.RegisteredCssClass.Length == 0)
{
if (tns.IsSet(PROP_VPADDING) && !this.IsSet(PROP_VPADDING))
{
this.VerticalPadding = tns.VerticalPadding;
}
if (tns.IsSet(PROP_HPADDING) && !this.IsSet(PROP_HPADDING))
{
this.HorizontalPadding = tns.HorizontalPadding;
}
}
if (tns.IsSet(PROP_NODESPACING) && !this.IsSet(PROP_NODESPACING))
{
this.NodeSpacing = tns.NodeSpacing;
}
if (tns.IsSet(PROP_CHILDNODESPADDING) && !this.IsSet(PROP_CHILDNODESPADDING))
{
this.ChildNodesPadding = tns.ChildNodesPadding;
}
if (tns.IsSet(PROP_IMAGEURL) && !this.IsSet(PROP_IMAGEURL))
{
this.ImageUrl = tns.ImageUrl;
}
}
}
}
public override void MergeWith(Style s)
{
if (s != null)
{
if (this.IsEmpty)
{
this.CopyFrom(s);
}
else
{
base.MergeWith(s);
TreeNodeStyle style = s as TreeNodeStyle;
if ((style != null) && !style.IsEmpty)
{
if (s.RegisteredCssClass.Length == 0)
{
if (style.IsSet(0x10000) && !base.IsSet(0x10000))
{
this.VerticalPadding = style.VerticalPadding;
}
if (style.IsSet(0x20000) && !base.IsSet(0x20000))
{
this.HorizontalPadding = style.HorizontalPadding;
}
}
if (style.IsSet(0x40000) && !base.IsSet(0x40000))
{
this.NodeSpacing = style.NodeSpacing;
}
if (style.IsSet(0x80000) && !base.IsSet(0x80000))
{
this.ChildNodesPadding = style.ChildNodesPadding;
}
if (style.IsSet(0x100000) && !base.IsSet(0x100000))
{
this.ImageUrl = style.ImageUrl;
}
}
}
}
}
/// <devdoc>
/// Copies non-blank elements from the specified style, overwriting existing
/// style elements if necessary.
/// </devdoc>
public override void CopyFrom(Style s)
{
if (s != null)
{
base.CopyFrom(s);
TreeNodeStyle tns = s as TreeNodeStyle;
if (tns != null && !tns.IsEmpty)
{
// Only copy the paddings if they aren't in the source Style's registered CSS class
if (s.RegisteredCssClass.Length != 0)
{
if (tns.IsSet(PROP_VPADDING))
{
ViewState.Remove("VerticalPadding");
ClearBit(PROP_VPADDING);
}
if (tns.IsSet(PROP_HPADDING))
{
ViewState.Remove("HorizontalPadding");
ClearBit(PROP_HPADDING);
}
}
else
{
if (tns.IsSet(PROP_VPADDING))
{
this.VerticalPadding = tns.VerticalPadding;
}
if (tns.IsSet(PROP_HPADDING))
{
this.HorizontalPadding = tns.HorizontalPadding;
}
}
if (tns.IsSet(PROP_NODESPACING))
{
this.NodeSpacing = tns.NodeSpacing;
}
if (tns.IsSet(PROP_CHILDNODESPADDING))
{
this.ChildNodesPadding = tns.ChildNodesPadding;
}
if (tns.IsSet(PROP_IMAGEURL))
{
this.ImageUrl = tns.ImageUrl;
}
}
}
}
public override void CopyFrom(Style s)
{
if (s != null)
{
base.CopyFrom(s);
TreeNodeStyle style = s as TreeNodeStyle;
if ((style != null) && !style.IsEmpty)
{
if (s.RegisteredCssClass.Length != 0)
{
if (style.IsSet(0x10000))
{
base.ViewState.Remove("VerticalPadding");
base.ClearBit(0x10000);
}
if (style.IsSet(0x20000))
{
base.ViewState.Remove("HorizontalPadding");
base.ClearBit(0x20000);
}
}
else
{
if (style.IsSet(0x10000))
{
this.VerticalPadding = style.VerticalPadding;
}
if (style.IsSet(0x20000))
{
this.HorizontalPadding = style.HorizontalPadding;
}
}
if (style.IsSet(0x40000))
{
this.NodeSpacing = style.NodeSpacing;
}
if (style.IsSet(0x80000))
{
this.ChildNodesPadding = style.ChildNodesPadding;
}
if (style.IsSet(0x100000))
{
this.ImageUrl = style.ImageUrl;
}
}
}
}
