public void DrawGroupLine(NodeRendererEventArgs e)
{
Color lineColor = e.Color;
Node node = e.Node;
if (lineColor.IsEmpty || lineColor.A == 0 || node.Cells.Count == 0) return;
Graphics g = e.Graphics;
Rectangle r = node.Bounds;
Cell lastCell = node.Cells[node.Cells.Count - 1];
if (lastCell.CheckBoxVisible && CellLayout.GetCheckBoxHorizontalAlign(lastCell.CheckBoxAlignment, true, eView.Tile) == eHorizontalAlign.Right)
{
r.Width -= (lastCell.CheckBoxBounds.Right - r.X) + LineMargin;
r.X = lastCell.CheckBoxBounds.Right + LineMargin;
}
else if (!lastCell.ImageBoundsRelative.IsEmpty && CellLayout.GetHorizontalAlign(lastCell.ImageAlignment, true, eView.Tile) == eHorizontalAlign.Right)
{
r.Width -= (lastCell.ImageBounds.Right - r.X) + LineMargin;
r.X = lastCell.ImageBounds.Right + LineMargin;
}
else if (e.Style.TextAlignment == eStyleTextAlignment.Near)
{
Rectangle textBounds = lastCell.TextBounds;
if (lastCell.TextMarkupBody == null)
textBounds.Width = TextDrawing.MeasureString(g, lastCell.Text, e.Style.Font).Width;
r.Width -= (textBounds.Right - r.X) + LineMargin;
r.X = textBounds.Right + LineMargin;
}
else
return;
using (Pen pen = new Pen(lineColor, 1))
{
g.DrawLine(pen, r.X, r.Y + r.Height / 2, r.Right, r.Y + r.Height / 2);
}
}
/// <summary>
/// Raises RenderNodeBackground event.
/// </summary>
/// <param name="e">Event arguments.</param>
protected virtual void OnRenderNodeBackground(NodeRendererEventArgs e)
{
if(RenderNodeBackground!=null)
RenderNodeBackground(this,e);
}
/// <summary>
/// Draws node 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 OnRenderNodeBackground method so events can occur.
/// </summary>
/// <param name="e">Information provided for rendering.</param>
public virtual void DrawNodeBackground(NodeRendererEventArgs e)
{
OnRenderNodeBackground(e);
}
/// <summary>
/// Raises RenderNodeBackground event.
/// </summary>
/// <param name="e">Event arguments.</param>
protected virtual void OnRenderTileGroupLine(NodeRendererEventArgs e)
{
if (RenderTileGroupLine != null)
RenderTileGroupLine(this, e);
}
/// <summary>
/// Draws node group line when in tile view. 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 OnRenderTileGroupLine method so events can occur.
/// </summary>
/// <param name="e">Information provided for rendering.</param>
public virtual void DrawTileGroupLine(NodeRendererEventArgs e)
{
OnRenderTileGroupLine(e);
}