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using System;
using System.ComponentModel;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
namespace KHPANEL
{
public class CircularProgressBar : Control
{
#region Enums
public enum _ProgressShape
{
Round,
Flat
}
public enum _TextMode
{
None,
Value,
Percentage,
Custom
}
#endregion
#region Private Variables
private long _Value;
private long _Maximum = 100;
private int _LineWitdh = 1;
private float _BarWidth = 14f;
private Color _ProgressColor1 = Color.Orange;
private Color _ProgressColor2 = Color.Orange;
private Color _LineColor = Color.Silver;
private LinearGradientMode _GradientMode = LinearGradientMode.ForwardDiagonal;
private _ProgressShape ProgressShapeVal;
private _TextMode ProgressTextMode;
#endregion
#region Contructor
public CircularProgressBar()
{
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
SetStyle(ControlStyles.Opaque, true);
this.BackColor = SystemColors.Control;
this.ForeColor = Color.DimGray;
this.Size = new Size(130, 130);
this.Font = new Font("Segoe UI", 15);
this.MinimumSize = new Size(100, 100);
this.DoubleBuffered = true;
this.LineWidth = 1;
this.LineColor = Color.DimGray;
Value = 57;
ProgressShape = _ProgressShape.Flat;
TextMode = _TextMode.Percentage;
}
#endregion
#region Public Custom Properties
/// <summary>Determina el Valor del Progreso</summary>
[Description("Valor Entero que determina la posision de la Barra de Progreso."), Category("Behavior")]
public long Value
{
get { return _Value; }
set
{
if (value > _Maximum)
value = _Maximum;
_Value = value;
Invalidate();
}
}
[Description("Obtiene o Establece el Valor Maximo de la barra de Progreso."), Category("Behavior")]
public long Maximum
{
get { return _Maximum; }
set
{
if (value < 1)
value = 1;
_Maximum = value;
Invalidate();
}
}
[Description("Color Inicial de la Barra de Progreso"), Category("Appearance")]
public Color BarColor1
{
get { return _ProgressColor1; }
set
{
_ProgressColor1 = value;
Invalidate();
}
}
[Description("Color Final de la Barra de Progreso"), Category("Appearance")]
public Color BarColor2
{
get { return _ProgressColor2; }
set
{
_ProgressColor2 = value;
Invalidate();
}
}
[Description("Ancho de la Barra de Progreso"), Category("Appearance")]
public float BarWidth
{
get { return _BarWidth; }
set
{
_BarWidth = value;
Invalidate();
}
}
[Description("Modo del Gradiente de Color"), Category("Appearance")]
public LinearGradientMode GradientMode
{
get { return _GradientMode; }
set
{
_GradientMode = value;
Invalidate();
}
}
[Description("Color de la Linea Intermedia"), Category("Appearance")]
public Color LineColor
{
get { return _LineColor; }
set
{
_LineColor = value;
Invalidate();
}
}
[Description("Ancho de la Linea Intermedia"), Category("Appearance")]
public int LineWidth
{
get { return _LineWitdh; }
set
{
_LineWitdh = value;
Invalidate();
}
}
[Description("Obtiene o Establece la Forma de los terminales de la barra de progreso."), Category("Appearance")]
public _ProgressShape ProgressShape
{
get { return ProgressShapeVal; }
set
{
ProgressShapeVal = value;
Invalidate();
}
}
[Description("Obtiene o Establece el Modo como se muestra el Texto dentro de la barra de Progreso."), Category("Behavior")]
public _TextMode TextMode
{
get { return ProgressTextMode; }
set
{
ProgressTextMode = value;
Invalidate();
}
}
[Description("Obtiene el Texto que se muestra dentro del Control"), Category("Behavior")]
public override string Text { get; set; }
#endregion
#region EventArgs
protected override void OnResize(EventArgs e)
{
base.OnResize(e);
SetStandardSize();
}
protected override void OnSizeChanged(EventArgs e)
{
base.OnSizeChanged(e);
SetStandardSize();
}
protected override void OnPaintBackground(PaintEventArgs p)
{
base.OnPaintBackground(p);
}
#endregion
#region Methods
private void SetStandardSize()
{
int _Size = Math.Max(Width, Height);
Size = new Size(_Size, _Size);
}
public void Increment(int Val)
{
this._Value += Val;
Invalidate();
}
public void Decrement(int Val)
{
this._Value -= Val;
Invalidate();
}
#endregion
#region Events
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
using (Bitmap bitmap = new Bitmap(this.Width, this.Height))
{
using (Graphics graphics = Graphics.FromImage(bitmap))
{
graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
//graphics.Clear(Color.Transparent); //<-- this.BackColor, SystemColors.Control, Color.Transparent
PaintTransparentBackground(this, e);
//Dibuja el circulo blanco interior:
using (Brush mBackColor = new SolidBrush(this.BackColor))
{
graphics.FillEllipse(mBackColor,
18, 18,
(this.Width - 0x30) + 12,
(this.Height - 0x30) + 12);
}
// Dibuja la delgada Linea gris del medio:
using (Pen pen2 = new Pen(LineColor, this.LineWidth))
{
graphics.DrawEllipse(pen2,
18, 18,
(this.Width - 0x30) + 12,
(this.Height - 0x30) + 12);
}
//Dibuja la Barra de Progreso
using (LinearGradientBrush brush = new LinearGradientBrush(this.ClientRectangle,
this._ProgressColor1, this._ProgressColor2, this.GradientMode))
{
using (Pen pen = new Pen(brush, this.BarWidth))
{
switch (this.ProgressShapeVal)
{
case _ProgressShape.Round:
pen.StartCap = LineCap.Round;
pen.EndCap = LineCap.Round;
break;
case _ProgressShape.Flat:
pen.StartCap = LineCap.Flat;
pen.EndCap = LineCap.Flat;
break;
}
//Aqui se dibuja realmente la Barra de Progreso
graphics.DrawArc(pen,
0x12, 0x12,
(this.Width - 0x23) - 2,
(this.Height - 0x23) - 2,
-90,
(int)Math.Round((double)((360.0 / ((double)this._Maximum)) * this._Value)));
}
}
#region Dibuja el Texto de Progreso
switch (this.TextMode)
{
case _TextMode.None:
this.Text = string.Empty;
break;
case _TextMode.Value:
this.Text = _Value.ToString();
break;
case _TextMode.Percentage:
this.Text = Convert.ToString(Convert.ToInt32((100 / _Maximum) * _Value));
break;
default:
break;
}
if (this.Text != string.Empty)
{
using (Brush FontColor = new SolidBrush(this.ForeColor))
{
int ShadowOffset = 2;
SizeF MS = graphics.MeasureString(this.Text, this.Font);
SolidBrush shadowBrush = new SolidBrush(Color.FromArgb(100, this.ForeColor));
//Sombra del Texto:
graphics.DrawString(this.Text, this.Font, shadowBrush,
Convert.ToInt32(Width / 2 - MS.Width / 2) + ShadowOffset,
Convert.ToInt32(Height / 2 - MS.Height / 2) + ShadowOffset
);
//Texto del Control:
graphics.DrawString(this.Text, this.Font, FontColor,
Convert.ToInt32(Width / 2 - MS.Width / 2),
Convert.ToInt32(Height / 2 - MS.Height / 2));
}
}
#endregion
//Aqui se Dibuja todo el Control:
e.Graphics.DrawImage(bitmap, 0, 0);
graphics.Dispose();
bitmap.Dispose();
}
}
}
private static void PaintTransparentBackground(Control c, PaintEventArgs e)
{
if (c.Parent == null || !Application.RenderWithVisualStyles)
return;
ButtonRenderer.DrawParentBackground(e.Graphics, c.ClientRectangle, c);
}
/// <summary>Dibuja un Circulo Relleno de Color con los Bordes perfectos.</summary>
/// <param name="g">'Canvas' del Objeto donde se va a dibujar</param>
/// <param name="brush">Color y estilo del relleno</param>
/// <param name="centerX">Centro del Circulo, en el eje X</param>
/// <param name="centerY">Centro del Circulo, en el eje Y</param>
/// <param name="radius">Radio del Circulo</param>
private void FillCircle(Graphics g, Brush brush, float centerX, float centerY, float radius)
{
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBilinear;
g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
g.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
using (System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath())
{
g.FillEllipse(brush, centerX - radius, centerY - radius,
radius + radius, radius + radius);
}
}
#endregion
}
}