/// <summary>
/// Gets the background color for a treenode.
/// </summary>
/// <param name="highlight">True if the background color is part of a highlight area (e.g. selection, drop-target)</param>
public Color GetNodeBackColor(TreeNode tn, Boolean highlight)
{
if (tn == null || this.Colors == null)
return Color.Empty;
if (highlight && tn.HasStateFlag(TreeNodeStates.DropTarget))
return this.Colors.DropTargetBackground.Color;
if (highlight && tn.HasStateFlag(TreeNodeStates.Selected))
return this.Colors.SelectionBackground.Color;
if (highlight && tn.HasStateFlag(TreeNodeStates.ParentOfSelected))
return this.Colors.ParentBackground.Color;
if (highlight && !tn.BackColor.IsEmpty)
return tn.BackColor;
else if (this.Colors.AlternateBackground && this.isAlternatingTn(tn))
return this.Colors.AltBackground.Color;
else
return this.Colors.Background.Color;
}
/// <summary>
/// Gets the foreground color for a treenode.
/// </summary>
/// <param name="highlight">True if the foreground color is part of a highlight area (e.g. selection, drop-target)</param>
public Color GetNodeForeColor(TreeNode tn, Boolean highlight)
{
if (tn == null || this.Colors == null)
return Color.Empty;
if (tn.HasStateFlag(TreeNodeStates.DropTarget))
return this.Colors.DropTargetForeground.Color;
else if (tn.HasStateFlag(TreeNodeStates.Selected))
return this.Colors.SelectionForeground.Color;
else if (tn.HasStateFlag(TreeNodeStates.ParentOfSelected))
return this.Colors.ParentForeground.Color;
Color color;
if (tn.ForeColor != Color.Empty)
color = tn.ForeColor;
else
{
color = Outliner.MaxUtils.Colors.SelectContrastingColor( this.GetNodeBackColor(tn, highlight)
, this.Colors.ForegroundLight.Color
, this.Colors.ForegroundDark.Color);
}
return Color.FromArgb(this.GetNodeOpacity(tn), color);
}