52 lines
2.0 KiB
C#
52 lines
2.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Drawing;
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using DevComponents.AdvTree.Layout;
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using DevComponents.DotNetBar;
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namespace DevComponents.AdvTree.Display
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{
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internal class NodeGroupLineDisplay
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{
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private static readonly int LineMargin = 4;
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public void DrawGroupLine(NodeRendererEventArgs e)
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{
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Color lineColor = e.Color;
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Node node = e.Node;
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if (lineColor.IsEmpty || lineColor.A == 0 || node.Cells.Count == 0) return;
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Graphics g = e.Graphics;
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Rectangle r = node.Bounds;
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Cell lastCell = node.Cells[node.Cells.Count - 1];
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if (lastCell.CheckBoxVisible && CellLayout.GetCheckBoxHorizontalAlign(lastCell.CheckBoxAlignment, true, eView.Tile) == eHorizontalAlign.Right)
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{
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r.Width -= (lastCell.CheckBoxBounds.Right - r.X) + LineMargin;
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r.X = lastCell.CheckBoxBounds.Right + LineMargin;
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}
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else if (!lastCell.ImageBoundsRelative.IsEmpty && CellLayout.GetHorizontalAlign(lastCell.ImageAlignment, true, eView.Tile) == eHorizontalAlign.Right)
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{
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r.Width -= (lastCell.ImageBounds.Right - r.X) + LineMargin;
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r.X = lastCell.ImageBounds.Right + LineMargin;
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}
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else if (e.Style.TextAlignment == eStyleTextAlignment.Near)
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{
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Rectangle textBounds = lastCell.TextBounds;
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if (lastCell.TextMarkupBody == null)
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textBounds.Width = TextDrawing.MeasureString(g, lastCell.Text, e.Style.Font).Width;
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r.Width -= (textBounds.Right - r.X) + LineMargin;
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r.X = textBounds.Right + LineMargin;
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}
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else
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return;
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using (Pen pen = new Pen(lineColor, 1))
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{
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g.DrawLine(pen, r.X, r.Y + r.Height / 2, r.Right, r.Y + r.Height / 2);
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}
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}
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}
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}
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