C# Round Border Label

 

라운드된 외곽선이 있는 커스텀 라벨 컨트롤

• 네 귀퉁이 별로 각각 라운드 여부를 지정 가능
• 라운드 너비, 배경 색상, 외곽선 색상/두께 변경 가능

 

RoundLabel.cs

using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;

namespace RoundBorderLabel {
    public class RoundLabel :Label {

        public int cornerRadius = 15; //라운드 너비
        public Color borderColor = Color.DarkGray;//외곽선 색상
        public int borderWidth = 1;//외곽선 두께
        public Color backColor = Color.LightGray;//배경 색상

        public bool isFillLeftTop = false;//왼쪽위 사각으로 채우기(라운드 적용X)
        public bool isFillRightTop = false;//오른쪽위 사각으로 채우기(라운드 적용X)
        public bool isFillLeftBtm = false;//왼쪽아래 사각으로 채우기(라운드 적용X)
        public bool isFillRightBtm = false;//오른쪽아래 사각으로 채우기(라운드 적용X)

        //int diminisher = 1;

        public RoundLabel() {
            this.DoubleBuffered = true;
        }

        protected override void OnPaint(PaintEventArgs e) {
            base.OnPaint(e);
            using(var graphicsPath = _getRoundRectangle(this.ClientRectangle)) {
                e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

                var brush = new SolidBrush(backColor);
                var pen = new Pen(borderColor, borderWidth);
                e.Graphics.FillPath(brush, graphicsPath);
                e.Graphics.DrawPath(pen, graphicsPath);

                TextRenderer.DrawText(e.Graphics, Text, this.Font, this.ClientRectangle, this.ForeColor);
            }
        }

        private GraphicsPath _getRoundRectangle(Rectangle rectangle) {
            GraphicsPath path = new GraphicsPath();

            //path.AddArc(rectangle.X, rectangle.Y, cornerRadius, cornerRadius, 180, 90);

            int left = rectangle.X;
            int top = rectangle.Y;
            int right = rectangle.X + rectangle.Width - borderWidth;
            int bottom = rectangle.Y + rectangle.Height - borderWidth;

            if(isFillLeftTop) {//좌상
                path.AddLine(left, top + cornerRadius, left, top);
                path.AddLine(left, top, left + cornerRadius, top);
            } else {
                path.AddArc(rectangle.X, rectangle.Y, cornerRadius, cornerRadius, 180, 90);
            }
            if(isFillRightTop) {//우상
                path.AddLine(right - cornerRadius, top, right, top);
                path.AddLine(right, top, right, top + cornerRadius);
            } else {
                path.AddArc(rectangle.X + rectangle.Width - cornerRadius - borderWidth, rectangle.Y, cornerRadius, cornerRadius, 270, 90);
            }
            if(isFillRightBtm) {//우하
                path.AddLine(right, bottom - cornerRadius, right, bottom);
                path.AddLine(right, bottom, right - cornerRadius, bottom);
            } else {
                path.AddArc(rectangle.X + rectangle.Width - cornerRadius - borderWidth, rectangle.Y + rectangle.Height - cornerRadius - borderWidth, cornerRadius, cornerRadius, 0, 90);
            }
            if(isFillLeftBtm) {//좌하
                path.AddLine(left + cornerRadius, bottom, left, bottom);
                path.AddLine(left, bottom, left, bottom - cornerRadius);
            } else {
                path.AddArc(rectangle.X, rectangle.Y + rectangle.Height - cornerRadius - borderWidth, cornerRadius, cornerRadius, 90, 90);
            }

            path.CloseAllFigures();

            return path;
        }
    }
}

 

사용

roundLabel2.borderWidth = 2;
roundLabel2.borderColor = Color.Red;
roundLabel2.backColor = Color.LightYellow;

roundLabel3.borderColor = Color.LightGreen;
roundLabel3.backColor = Color.LightGreen;

roundLabel4.isFillLeftTop = true;
roundLabel4.isFillRightTop = true;
roundLabel4.isFillLeftBtm = true;
roundLabel4.isFillRightBtm = true;
roundLabel4.borderColor = Color.DarkBlue;
roundLabel4.backColor = Color.LightBlue;

roundLabel5.cornerRadius = 30;
roundLabel5.isFillLeftBtm = true;
roundLabel5.isFillRightBtm = true;
roundLabel5.borderWidth = 2;
roundLabel5.borderColor = Color.DarkCyan;
roundLabel5.backColor = Color.AntiqueWhite;

roundLabel6.cornerRadius = 30;
roundLabel6.isFillRightTop = true;
roundLabel6.isFillRightBtm = true;
roundLabel6.borderColor = Color.DarkKhaki;
roundLabel6.backColor = Color.LightCoral;

roundLabel7.cornerRadius = 50;

roundLabel8.cornerRadius = 30;
roundLabel8.borderColor = Color.Black;
roundLabel8.backColor = Color.Transparent;

roundLabel9.cornerRadius = 30;
roundLabel9.borderColor = Color.Transparent;
roundLabel9.backColor = Color.Transparent;

 

프로젝트 소스 다운↓↓↓

RoundBorderLabel.zip

0.02MB