using System;
using System.Diagnostics;
using System.Drawing.Drawing2D;
using System.Globalization;
// Source : http://www.codeproject.com/vb/net/custompanel.asp
namespace Nolme.WinForms
{
[FlagsAttribute()] public enum CornerCurveModes
{
None = 0,
TopLeft = 1,
TopRight = 2,
TopLeftTopRight = 3,
BottomLeft = 4,
TopLeftBottomLeft = 5,
TopRightBottomLeft = 6,
TopLeftTopRightBottomLeft = 7,
BottomRight = 8,
BottomRightTopLeft = 9,
BottomRightTopRight = 10,
BottomRightTopLeftTopRight = 11,
BottomRightBottomLeft = 12,
BottomRightTopLeftBottomLeft = 13,
BottomRightTopRightBottomLeft = 14,
All = 15
}
/*public enum LinearGradientMode
{
Horizontal = 0,
Vertical = 1,
ForwardDiagonal = 2,
BackwardDiagonal = 3,
None = 4
}*/
[System.Drawing.ToolboxBitmapAttribute(typeof(System.Windows.Forms.Panel))]
public class CustomPanel : System.Windows.Forms.Panel
{
// Fields
private System.Drawing.Color m_BackColor1 = System.Drawing.SystemColors.Window;
private System.Drawing.Color m_BackColor2 = System.Drawing.SystemColors.Window;
private LinearGradientMode m_GradientMode = LinearGradientMode.Horizontal;
private System.Windows.Forms.BorderStyle m_BorderStyle = System.Windows.Forms.BorderStyle.None;
private System.Drawing.Color m_BorderColor = System.Drawing.SystemColors.WindowFrame;
private int m_BorderWidth = 1;
private int m_Curvature;
// Properties
// Shadow the Backcolor property so that the base class will still render with a transparent backcolor
private CornerCurveModes m_CurveMode = CornerCurveModes.All;
[System.ComponentModel.DefaultValueAttribute(typeof(System.Drawing.Color), "Window"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The primary background color used to display text and graphics in the control.")]
public new System.Drawing.Color BackColor
{
get
{
return this.m_BackColor1;
}
set
{
this.m_BackColor1 = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(System.Drawing.Color), "Window"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The secondary background color used to paint the control.")]
public System.Drawing.Color BackColor2
{
get
{
return this.m_BackColor2;
}
set
{
this.m_BackColor2 = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(LinearGradientMode), "None"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The gradient direction used to paint the control.")]
public LinearGradientMode GradientMode
{
get
{
return this.m_GradientMode;
}
set
{
this.m_GradientMode = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(System.Windows.Forms.BorderStyle), "None"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The border style used to paint the control.")]
public new System.Windows.Forms.BorderStyle BorderStyle
{
get
{
return this.m_BorderStyle;
}
set
{
this.m_BorderStyle = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(System.Drawing.Color), "WindowFrame"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The border color used to paint the control.")]
public System.Drawing.Color BorderColor
{
get
{
return this.m_BorderColor;
}
set
{
this.m_BorderColor = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(int), "1"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The width of the border used to paint the control.")]
public int BorderWidth
{
get
{
return this.m_BorderWidth;
}
set
{
this.m_BorderWidth = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(int), "0"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The radius of the curve used to paint the corners of the control.")]
public int Curvature
{
get
{
return this.m_Curvature;
}
set
{
this.m_Curvature = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
[System.ComponentModel.DefaultValueAttribute(typeof(CornerCurveModes), "All"), System.ComponentModel.CategoryAttribute("Appearance"), System.ComponentModel.DescriptionAttribute("The style of the curves to be drawn on the control.")]
public CornerCurveModes CurveMode
{
get
{
return this.m_CurveMode;
}
set
{
this.m_CurveMode = value;
if (this.DesignMode == true)
{
this.Invalidate();
}
}
}
private int adjustedCurve
{
get
{
int curve = 0;
if (!(this.m_CurveMode == CornerCurveModes.None))
{
if (this.m_Curvature > (this.ClientRectangle.Width / 2))
{
curve = DoubleToInt(this.ClientRectangle.Width / 2);
}
else
{
curve = this.m_Curvature;
}
if (curve > (this.ClientRectangle.Height / 2))
{
curve = DoubleToInt(this.ClientRectangle.Height / 2);
}
}
return curve;
}
}
public CustomPanel() : base()
{
this.SetDefaultControlStyles();
this.customInitialisation();
}
private void SetDefaultControlStyles()
{
this.SetStyle(System.Windows.Forms.ControlStyles.DoubleBuffer, true);
this.SetStyle(System.Windows.Forms.ControlStyles.AllPaintingInWmPaint, false);
this.SetStyle(System.Windows.Forms.ControlStyles.ResizeRedraw, true);
this.SetStyle(System.Windows.Forms.ControlStyles.UserPaint, true);
this.SetStyle(System.Windows.Forms.ControlStyles.SupportsTransparentBackColor, true);
}
private void customInitialisation()
{
this.SuspendLayout();
base.BackColor = System.Drawing.Color.Transparent;
this.BorderStyle = System.Windows.Forms.BorderStyle.None;
this.ResumeLayout(false);
}
protected override void OnPaintBackground(System.Windows.Forms.PaintEventArgs pevent)
{
base.OnPaintBackground(pevent);
pevent.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
System.Drawing.Drawing2D.GraphicsPath graphPath;
graphPath = this.CreatePath();
// Create Gradient Brush (Cannot be width or height 0)
System.Drawing.Drawing2D.LinearGradientBrush filler;
System.Drawing.Rectangle rect = this.ClientRectangle;
if (this.ClientRectangle.Width == 0)
{
rect.Width += 1;
}
if (this.ClientRectangle.Height == 0)
{
rect.Height += 1;
}
/*if (this.m_GradientMode == LinearGradientMode.None)
{
filler = new System.Drawing.Drawing2D.LinearGradientBrush(rect, this.m_BackColor1, this.m_BackColor1, System.Drawing.Drawing2D.LinearGradientMode.Vertical);
}
else
{
filler = new System.Drawing.Drawing2D.LinearGradientBrush(rect, this.m_BackColor1, this.m_BackColor2, ((System.Drawing.Drawing2D.LinearGradientMode)this.m_GradientMode));
}
*/
filler = new System.Drawing.Drawing2D.LinearGradientBrush(rect, this.m_BackColor1, this.m_BackColor2, ((System.Drawing.Drawing2D.LinearGradientMode)this.m_GradientMode));
pevent.Graphics.FillPath(filler, graphPath);
//filler.Dispose(); // Fxcop warning
if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.FixedSingle)
{
System.Drawing.Pen borderPen = new System.Drawing.Pen(this.m_BorderColor, this.m_BorderWidth);
pevent.Graphics.DrawPath(borderPen, graphPath);
borderPen.Dispose();
}
else if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.Fixed3D)
{
DrawBorder3D(pevent.Graphics, this.ClientRectangle);
}
else if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.None)
{
}
filler.Dispose();
graphPath.Dispose();
}
protected System.Drawing.Drawing2D.GraphicsPath CreatePath()
{
System.Drawing.Drawing2D.GraphicsPath graphPath = new System.Drawing.Drawing2D.GraphicsPath();
if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.Fixed3D)
{
graphPath.AddRectangle(this.ClientRectangle);
}
else
{
//try
//{
int curve = 0;
System.Drawing.Rectangle rect = this.ClientRectangle;
int offset = 0;
if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.FixedSingle)
{
if (this.m_BorderWidth > 1)
{
offset = DoubleToInt(this.BorderWidth / 2);
}
curve = this.adjustedCurve;
}
else if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.Fixed3D)
{
}
else if (this.m_BorderStyle == System.Windows.Forms.BorderStyle.None)
{
curve = this.adjustedCurve;
}
if (curve == 0)
{
graphPath.AddRectangle(System.Drawing.Rectangle.Inflate(rect, -offset, -offset));
}
else
{
int rectWidth = rect.Width - 1 - offset;
int rectHeight = rect.Height - 1 - offset;
int curveWidth = 1;
if ((this.m_CurveMode & CornerCurveModes.TopRight) != 0)
{
curveWidth = (curve * 2);
}
else
{
curveWidth = 1;
}
graphPath.AddArc(rectWidth - curveWidth, offset, curveWidth, curveWidth, 270, 90);
if ((this.m_CurveMode & CornerCurveModes.BottomRight) != 0)
{
curveWidth = (curve * 2);
}
else
{
curveWidth = 1;
}
graphPath.AddArc(rectWidth - curveWidth, rectHeight - curveWidth, curveWidth, curveWidth, 0, 90);
if ((this.m_CurveMode & CornerCurveModes.BottomLeft) != 0)
{
curveWidth = (curve * 2);
}
else
{
curveWidth = 1;
}
graphPath.AddArc(offset, rectHeight - curveWidth, curveWidth, curveWidth, 90, 90);
if ((this.m_CurveMode & CornerCurveModes.TopLeft) != 0)
{
curveWidth = (curve * 2);
}
else
{
curveWidth = 1;
}
graphPath.AddArc(offset, offset, curveWidth, curveWidth, 180, 90);
graphPath.CloseFigure();
}
/*} [FXCOP]
catch (System.Exception)
{
graphPath.AddRectangle(this.ClientRectangle);
}*/
}
return graphPath;
}
public static void DrawBorder3D(System.Drawing.Graphics graphics, System.Drawing.Rectangle rectangle)
{
System.Diagnostics.Debug.Assert (graphics != null);
if (graphics != null)
{
graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.Default;
graphics.DrawLine(System.Drawing.SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.Width - 1, rectangle.Y);
graphics.DrawLine(System.Drawing.SystemPens.ControlDark, rectangle.X, rectangle.Y, rectangle.X, rectangle.Height - 1);
graphics.DrawLine(System.Drawing.SystemPens.ControlDarkDark, rectangle.X + 1, rectangle.Y + 1, rectangle.Width - 1, rectangle.Y + 1);
graphics.DrawLine(System.Drawing.SystemPens.ControlDarkDark, rectangle.X + 1, rectangle.Y + 1, rectangle.X + 1, rectangle.Height - 1);
graphics.DrawLine(System.Drawing.SystemPens.ControlLight, rectangle.X + 1, rectangle.Height - 2, rectangle.Width - 2, rectangle.Height - 2);
graphics.DrawLine(System.Drawing.SystemPens.ControlLight, rectangle.Width - 2, rectangle.Y + 1, rectangle.Width - 2, rectangle.Height - 2);
graphics.DrawLine(System.Drawing.SystemPens.ControlLightLight, rectangle.X, rectangle.Height - 1, rectangle.Width - 1, rectangle.Height - 1);
graphics.DrawLine(System.Drawing.SystemPens.ControlLightLight, rectangle.Width - 1, rectangle.Y, rectangle.Width - 1, rectangle.Height - 1);
}
}
public static int DoubleToInt(double value)
{
return System.Decimal.ToInt32(System.Decimal.Floor(System.Decimal.Parse((value).ToString(CultureInfo.InvariantCulture), CultureInfo.InvariantCulture)));
}
}
}
