Post comments

Need help?

Introduction

Features

• TitileText
• NoOfCircles
• AnimationSpeed
• IsTransperant
• CirclesColor

Source Code (Download here)

using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Drawing.Drawing2D;

namespace Owf.Controls
{
  public partial class OwfProgressControl : Control
  {
    private const int SideMargin = 2;
    private int _angle = 0;

    private string _titileText = "Loading..";
    [Browsable(true), DefaultValue("Loading..")]
    public string TitileText
    {
      get { return _titileText; }
      set { _titileText = value; Invalidate(); }
    }

    private int _noOfCircles = 5;
    [Browsable(true), DefaultValue(5)]
    public int NoOfCircles
    {
      get { return _noOfCircles; }
      set { _noOfCircles = value; Invalidate(); }
    }

    private Int16 _animationSpeed = 75;
    [Browsable(true), DefaultValue(75)]
    public Int16 AnimationSpeed
    {
      get { return _animationSpeed; }
      set
      {
        if (value > 100) value = 100;
        if (value < 1) value = 1;

        _animationSpeed = value;
        this.drawTimer.Interval = 101 - _animationSpeed;
        Invalidate();
      }
    }

    [Browsable(true), DefaultValue(true)]
    public bool IsTransperant
    {
      get { return this.BackColor == Color.Transparent; }
      set
      {
        if (value)
          this.BackColor = Color.Transparent;
        else
          this.BackColor = SystemColors.Control;
      }
    }

    private Color _circlesColor = Color.Black;
    [Browsable(true), DefaultValue("Color.Black")]
    public Color CirclesColor
    {
      get { return _circlesColor; }
      set { _circlesColor = value; Invalidate(); }
    }

    public OwfProgressControl()
    {
      InitializeComponent();
      SetStyles();
    }

    public OwfProgressControl(IContainer container)
    {
      container.Add(this);
      InitializeComponent();
      SetStyles();
    }

    private void SetStyles()
    {
      SetStyle(ControlStyles.DoubleBuffer, true);
      SetStyle(ControlStyles.AllPaintingInWmPaint, true);
      SetStyle(ControlStyles.ResizeRedraw, true);
      SetStyle(ControlStyles.SupportsTransparentBackColor, true);
    }

    private void OwfProgressControl_Paint(object sender, PaintEventArgs e)
    {
      float maxDiameter = Math.Min(this.Height, this.Width) - 2 * SideMargin;
      float center = Math.Min(this.Height, this.Width) / 2;
      e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;

      // Draw circles
      for (int i = 1; i <= _noOfCircles; i++)
      {
        float a1 = ((maxDiameter / (float)_noOfCircles) * i) / 2.0F;

        RectangleF rect = new RectangleF(center - a1, center - a1, 2.0F * a1, 2.0F * a1);
        if (i % 4 == 0)
          e.Graphics.DrawArc(new Pen(this._circlesColor), rect, _angle, 300);
        else if (i % 4 == 1)
          e.Graphics.DrawArc(new Pen(this._circlesColor), rect, 360 - _angle + 90, 300);
        else if (i % 4 == 2)
          e.Graphics.DrawArc(new Pen(this._circlesColor), rect, 360 - _angle + 180, 300);
        else
          e.Graphics.DrawArc(new Pen(this._circlesColor), rect, 360 - _angle + 270, 300);
      }

      // Draw Text
      SizeF stringSize = e.Graphics.MeasureString(_titileText, this.Font);
      e.Graphics.DrawString(this._titileText, this.Font, new SolidBrush(this.ForeColor), 
        maxDiameter + 3 * SideMargin, ((float)this.Height - stringSize.Height) / 2);
    }

    private void drawTimer_Tick(object sender, EventArgs e)
    {
      _angle = (_angle + 5) % 360;
      Invalidate();
    }
  }
}

				

Some Other Cool samples

Post comments

Need help?