■ ProgressBar 클래스에서 상태 진행바를 사용하는 방법을 보여준다.
▶ StateProgressBar.cs
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using System.Drawing; using System.Windows.Forms; using System.Windows.Forms.VisualStyles; namespace TestProject { /// <summary> /// 상태 진행바 /// </summary> public class StateProgressBar : ProgressBar { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 클래스명 /// </summary> private const string CLASS_NAME = "PROGRESS"; /// <summary> /// 렌더러 /// </summary> private VisualStyleRenderer renderer = null; /// <summary> /// 바 상태 /// </summary> private ProgressBarState barState = ProgressBarState.NORMAL; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region 바 상태 - BarState /// <summary> /// 바 상태 /// </summary> public ProgressBarState BarState { get { return this.barState; } set { this.barState = value; } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - StateProgressBar() /// <summary> /// 생성자 /// </summary> public StateProgressBar() { base.SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer, true); if(Application.RenderWithVisualStyles && VisualStyleRenderer.IsElementDefined(VisualStyleElement.ProgressBar.Bar.Normal)) { this.renderer = new VisualStyleRenderer(VisualStyleElement.ProgressBar.Bar.Normal); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Protected #region 페인트시 처리하기 - OnPaint(e) /// <summary> /// 페인트시 처리하기 /// </summary> /// <param name="e">이벤트 인자</param> protected override void OnPaint(PaintEventArgs e) { if(this.renderer == null) { return; } int backgroundPart = (int)ProgressBarPart.TRANSPARENT_BAR; int backgroundState = (int)TransparentBarState.NORMAL; int foregroundPart = (int)ProgressBarPart.FILL; int foregroundState = (int)FillState.NORMAL; switch(this.barState) { case ProgressBarState.NORMAL : break; case ProgressBarState.ERROR : foregroundState = (int)FillState.ERROR; break; case ProgressBarState.PAUSED : foregroundState = (int)FillState.PAUSED; break; case ProgressBarState.PARTIAL : backgroundState = (int)TransparentBarState.PARTIAL; foregroundState = (int)FillState.PARTIAL; break; } this.renderer.SetParameters(CLASS_NAME, backgroundPart, backgroundState); this.renderer.DrawBackground(e.Graphics, this.ClientRectangle); int chunkWidth = (int)((double)ClientSize.Width * (double)(Value - Minimum) / (double)(Maximum - Minimum)); Rectangle chunkRectangle = new Rectangle(0, 0, chunkWidth, ClientSize.Height); this.renderer.SetParameters(CLASS_NAME, foregroundPart, foregroundState); this.renderer.DrawBackground(e.Graphics, chunkRectangle); } #endregion } } |
