[DEVEXPRESS/WINFORM] TreeList 클래스 : 커스텀 그리기

TestProject.zip

다운로드

▶ MainForm.cs

using System;
using System.Drawing;
using System.Drawing.Drawing2D;

using DevExpress.XtraEditors;
using DevExpress.XtraTreeList;
using DevExpress.XtraTreeList.Columns;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : XtraForm
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            Load                                  += Form_Load;
            this.treeList.CustomDrawColumnHeader  += treeList_CustomDrawColumnHeader;
            this.treeList.CustomDrawNodeIndicator += treeList_CustomDrawNodeIndicator;
            this.treeList.CustomDrawFooter        += treeList_CustomDrawFooter;
            this.treeList.CustomDrawFooterCell    += treeList_CustomDrawFooterCell;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 폼 로드시 처리하기 - Form_Load(sender, e)

        /// <summary>
        /// 폼 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Form_Load(object sender, EventArgs e)
        {
            this.treeList.RowHeight                              = 25;
            this.treeList.OptionsView.AutoWidth                  = false;
            this.treeList.OptionsView.ShowSummaryFooter          = true;
            this.treeList.OptionsBehavior.ReadOnly               = true;
            this.treeList.OptionsBehavior.PopulateServiceColumns = true;
            this.treeList.KeyFieldName                           = "ID";
            this.treeList.ParentFieldName                        = "RegionID";

            this.treeList.DataSource = SalesData.GetSalesDataList();

            this.treeList.Columns[this.treeList.KeyFieldName   ].Visible = false;
            this.treeList.Columns[this.treeList.ParentFieldName].Visible = false;

            TreeListColumn salesColumn = this.treeList.Columns["Sales"];

            salesColumn.AllNodesSummary        = true;
            salesColumn.SummaryFooter          = SummaryItemType.Sum;
            salesColumn.SummaryFooterStrFormat = "합계 : {0:c0}";

            this.treeList.BestFitColumns();
        }

        #endregion
        #region 트리 리스트 컬럼 헤더 커스텀 그리기 - treeList_CustomDrawColumnHeader(sender, e)

        /// <summary>
        /// 트리 리스트 컬럼 헤더 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void treeList_CustomDrawColumnHeader(object sender, CustomDrawColumnHeaderEventArgs e)
        {
            if(e.Pressed)
            {
                PaintSunkenBackground(e);
            }
            else
            {
                PaintRaisedBackground(e);
            }

            if(e.ColumnType == HitInfoType.Column)
            {
                PaintHorizontalAlignedText(e, e.Column.GetCaption(), StringAlignment.Near);
            }

            e.Handled = true;
        }

        #endregion
        #region 트리 리스트 노드 지시자 커스텀 그리기 - treeList_CustomDrawNodeIndicator(sender, e)

        /// <summary>
        /// 트리 리스트 노드 지시자 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void treeList_CustomDrawNodeIndicator(object sender, CustomDrawNodeIndicatorEventArgs e)
        {
            PaintRaisedBackground(e);

            e.Handled = true;
        }

        #endregion
        #region 트리 리스트 FOOTER 커스텀 그리기 - treeList_CustomDrawFooter(sender, e)

        /// <summary>
        /// 트리 리스트 FOOTER 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void treeList_CustomDrawFooter(object sender, CustomDrawEventArgs e)
        {
            PaintRaisedBackground(e);

            e.Handled = true;
        }

        #endregion
        #region 트리 리스트 FOOTER 셀 커스텀 그리기 - treeList_CustomDrawFooterCell(sender, e)

        /// <summary>
        /// 트리 리스트 FOOTER 셀 커스텀 그리기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void treeList_CustomDrawFooterCell(object sender, CustomDrawFooterCellEventArgs e)
        {
            if(e.Text == string.Empty)
            {
                return;
            }

            PaintSunkenBackground(e);

            PaintHorizontalAlignedText(e, e.Text, StringAlignment.Far);

            e.Handled = true;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 돌출 배경 칠하기 - PaintRaisedBackground(e)

        /// <summary>
        /// 돌출 배경 칠하기
        /// </summary>
        /// <param name="e">이벤트 인자</param>
        private void PaintRaisedBackground(CustomDrawEventArgs e)
        {
            Brush brush = e.Cache.GetGradientBrush(e.Bounds, Color.Yellow, Color.Gold, LinearGradientMode.Vertical);

            e.Cache.FillRectangle(brush, e.Bounds);

            e.Cache.DrawRectangle(e.Cache.GetPen(Color.LightGray), e.Bounds);
        }

        #endregion
        #region 함몰 배경 칠하기 - PaintSunkenBackground(e)

        /// <summary>
        /// 함몰 배경 칠하기
        /// </summary>
        /// <param name="e">이벤트 인자</param>
        private void PaintSunkenBackground(CustomDrawEventArgs e)
        {
            Brush brush = e.Cache.GetGradientBrush(e.Bounds, Color.CornflowerBlue, Color.LightGray, LinearGradientMode.Vertical);

            e.Cache.FillRectangle(brush, e.Bounds);

            e.Cache.DrawRectangle(e.Cache.GetPen(Color.LightGray), e.Bounds);
        }

        #endregion
        #region 수평 정렬 텍스트 칠하기 - PaintHorizontalAlignedText(e, text, alignment)

        /// <summary>
        /// 수평 정렬 텍스트 칠하기
        /// </summary>
        /// <param name="e">이벤트 인자</param>
        /// <param name="text">텍스트</param>
        /// <param name="alignment">정렬</param>
        private void PaintHorizontalAlignedText(CustomDrawEventArgs e, String text, StringAlignment alignment)
        {
            Brush textBrush = e.Cache.GetSolidBrush(Color.Black);

            StringFormat stringFormat = e.Appearance.GetStringFormat();

            stringFormat.Alignment     = alignment;
            stringFormat.LineAlignment = StringAlignment.Center;
            stringFormat.FormatFlags   = StringFormatFlags.NoWrap;
            stringFormat.Trimming      = StringTrimming.EllipsisCharacter;

            e.Cache.DrawString(text, e.Appearance.Font, textBrush, e.Bounds, stringFormat);
        }

        #endregion
    }
}