/C#/How to create a rounded custom panel c#

How to create a rounded custom panel c#

public class RoundedPanel : Panel {
    private float _thickness = 5;
    public float Thickness {
        get {
            return _thickness;
        }
        set {
            _thickness = value;
            _pen = new Pen(_borderColor,Thickness);
            Invalidate();
        }
    }

    private Color _borderColor = Color.White;
    public Color BorderColor {
        get {
            return _borderColor;
        }
        set {
            _borderColor = value;
            _pen = new Pen(_borderColor,Thickness);
            Invalidate();
        }
    }

    private int _radius = 20;
    public int Radius {
        get {
            return _radius;
        }
        set {
            _radius = value;
            Invalidate();
        }
    }

    private Pen _pen;

    public MpRoundedPanel() : base() {
        _pen = new Pen(BorderColor,Thickness);
        DoubleBuffered = true;            
    }
    private Rectangle GetLeftUpper(int e) {
        return new Rectangle(0,0,e,e);
    }
    private Rectangle GetRightUpper(int e) {
        return new Rectangle(Width - e,0,e,e);
    }
    private Rectangle GetRightLower(int e) {
        return new Rectangle(Width - e,Height - e,e,e);
    }
    private Rectangle GetLeftLower(int e) {
        return new Rectangle(0,Height - e,e,e);
    }

    private void ExtendedDraw(PaintEventArgs e) {
        e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
        GraphicsPath path = new GraphicsPath();
        path.StartFigure();
        path.AddArc(GetLeftUpper(Radius),180,90);
        path.AddLine(Radius,0,Width - Radius,0);
        path.AddArc(GetRightUpper(Radius),270,90);
        path.AddLine(Width,Radius,Width,Height - Radius);
        path.AddArc(GetRightLower(Radius),0,90);
        path.AddLine(Width - Radius,Height,Radius,Height);
        path.AddArc(GetLeftLower(Radius),90,90);
        path.AddLine(0,Height - Radius,0,Radius);
        path.CloseFigure();
        Region = new Region(path);
    }
    private void DrawSingleBorder(Graphics graphics) {
        graphics.DrawArc(_pen,new Rectangle(0,0,Radius,Radius),180,90);
        graphics.DrawArc(_pen,new Rectangle(Width - Radius - 1,-1,Radius,Radius),270,90);
        graphics.DrawArc(_pen,new Rectangle(Width - Radius - 1,Height - Radius - 1,Radius,Radius),0,90);
        graphics.DrawArc(_pen,new Rectangle(0,Height - Radius - 1,Radius,Radius),90,90);
        graphics.DrawRectangle(_pen,0.0f,0.0f,(float)Width - 1.0f,(float)Height - 1.0f);
    }
    private void Draw3DBorder(Graphics graphics) {
        DrawSingleBorder(graphics);
    }
    private void DrawBorder(Graphics graphics) {
        DrawSingleBorder(graphics);
    }
    protected override void OnPaint(PaintEventArgs e) {
        base.OnPaint(e);
        ExtendedDraw(e);
        DrawBorder(e.Graphics);
    }
}

Source: stackoverflow.com

Similar codes

11 votes194 views2 answers
C# random choice
C#
0 vote191 views2 answers
How to textbox anywhere on chart in c#
C#
1 vote182 views1 answer
C# array remove first element
C#
2 votes201 views1 answer
C# yield keyword
C#
0 vote218 views1 answer
C# getdecimal null
C#
39 votes195 views4 answers
React for loop
C#
0 vote194 views1 answer
Dotween do rotate on one axis
C#
0 vote245 views1 answer
Unity how to get the first word from string
C#Unity
9 votes213 views1 answer
You have the following c# code. stringbuilder sb = new stringbuilder(really long string); the really long string variable is a string in which a very long string is stored.
C#
26 votes185 views2 answers
Declare dictionary c#
C#