private SizeF GetItemSize(Graphics g, FomulaItem item)
{
return g.MeasureString(item.ItemName, this.Font);
}
private void MergeNum(FomulaItem pre, FomulaItem cur, int curItemIndex)
{
}
private void DrawItem(Graphics g, FomulaItem item, RectangleF rect, bool selected)
{
Color textColor = selected ? this.selTextColor : this.ForeColor;
Color bkColor = selected ? this.selBackColor : this.BackColor;
g.FillRectangle(new SolidBrush(bkColor), rect);
g.DrawString(item.ItemName, this.Font, new SolidBrush(textColor), rect);
}