/// <summary>
/// Raises RenderTreeBackground event.
/// </summary>
/// <param name="e">Event data.</param>
protected virtual void OnRenderTreeBackground(TreeBackgroundRendererEventArgs e)
{
if(RenderTreeBackground!=null)
RenderTreeBackground(this, e);
}
/// <summary>
/// Draws the tree background. If you need to provide custom rendering this is the method that you should override in your custom rendered. If you
/// do not want default rendering to occur do not call the base implementation. You can call OnRenderTreeBackground method so events can occur.
/// </summary>
/// <param name="e">Information provided for rendering.</param>
public override void DrawTreeBackground(TreeBackgroundRendererEventArgs e)
{
TreeGX tree = e.TreeGX;
Graphics g = e.Graphics;
if(!tree.BackColor.IsEmpty)
{
using(SolidBrush brush=new SolidBrush(tree.BackColor))
g.FillRectangle(brush,tree.DisplayRectangle);
}
ElementStyleDisplayInfo info=new ElementStyleDisplayInfo();
info.Bounds=tree.DisplayRectangle;
info.Graphics=g;
info.Style=tree.BackgroundStyle;
ElementStyleDisplay.Paint(info);
base.DrawTreeBackground (e);
}
/// <summary>
/// Draws the tree background. If you need to provide custom rendering this is the method that you should override in your custom rendered. If you
/// do not want default rendering to occur do not call the base implementation. You can call OnRenderTreeBackground method so events can occur.
/// </summary>
/// <param name="e">Information provided for rendering.</param>
public virtual void DrawTreeBackground(TreeBackgroundRendererEventArgs e)
{
OnRenderTreeBackground(e);
}
