451 lines
14 KiB
C#
451 lines
14 KiB
C#
/******************************************************************************
|
||
* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
|
||
* CopyRight (C) 2012-2024 ShenYongHua(沈永华).
|
||
* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
|
||
*
|
||
* Blog: https://www.cnblogs.com/yhuse
|
||
* Gitee: https://gitee.com/yhuse/SunnyUI
|
||
* GitHub: https://github.com/yhuse/SunnyUI
|
||
*
|
||
* SunnyUI can be used for free under the GPL-3.0 license.
|
||
* If you use this code, please keep this note.
|
||
* 如果您使用此代码，请保留此说明。
|
||
******************************************************************************
|
||
* 文件名称: UIAnalogMeterRender.cs
|
||
* 文件说明: 仪表渲染类
|
||
* 文件作者: Luca Bonotto
|
||
* 开源协议: CPOL
|
||
* 引用地址: https://www.codeproject.com/Articles/24945/Analog-Meter
|
||
******************************************************************************/
|
||
|
||
/*
|
||
* Creato da SharpDevelop.
|
||
* Utente: lucabonotto
|
||
* Data: 03/04/2008
|
||
* Ora: 14.34
|
||
*
|
||
* To change this template use Tools | Options | Coding | Edit Standard Headers.
|
||
*/
|
||
|
||
using System;
|
||
using System.Drawing;
|
||
using System.Drawing.Drawing2D;
|
||
|
||
#pragma warning disable 1591
|
||
|
||
namespace Sunny.UI
|
||
{
|
||
/// <summary>
|
||
/// Base class for the renderers of the analog meter
|
||
/// </summary>
|
||
public class LBAnalogMeterRenderer
|
||
{
|
||
#region Variables
|
||
|
||
/// <summary>
|
||
/// Control to render
|
||
/// </summary>
|
||
private UIAnalogMeter meter;
|
||
|
||
#endregion Variables
|
||
|
||
#region Properies
|
||
|
||
public UIAnalogMeter AnalogMeter
|
||
{
|
||
set { this.meter = value; }
|
||
get { return this.meter; }
|
||
}
|
||
|
||
#endregion Properies
|
||
|
||
#region Virtual method
|
||
|
||
/// <summary>
|
||
/// Draw the background of the control
|
||
/// </summary>
|
||
/// <param name="gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawBackground(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the body of the control
|
||
/// </summary>
|
||
/// <param name="Gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawBody(Graphics Gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the scale of the control
|
||
/// </summary>
|
||
/// <param name="Gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawDivisions(Graphics Gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the thresholds
|
||
/// </summary>
|
||
/// <param name="gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawThresholds(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Drawt the unit measure of the control
|
||
/// </summary>
|
||
/// <param name="gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawUM(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the current value in numerical form
|
||
/// </summary>
|
||
/// <param name="gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawValue(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the needle
|
||
/// </summary>
|
||
/// <param name="Gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawNeedle(Graphics Gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the needle cover at the center
|
||
/// </summary>
|
||
/// <param name="Gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawNeedleCover(Graphics Gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
/// <summary>
|
||
/// Draw the glass effect
|
||
/// </summary>
|
||
/// <param name="Gr"></param>
|
||
/// <param name="rc"></param>
|
||
/// <returns></returns>
|
||
public virtual bool DrawGlass(Graphics Gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
#endregion Virtual method
|
||
}
|
||
|
||
/// <summary>
|
||
/// Default renderer class for the analog meter
|
||
/// </summary>
|
||
public class LBDefaultAnalogMeterRenderer : LBAnalogMeterRenderer
|
||
{
|
||
public override bool DrawBackground(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
public override bool DrawBody(Graphics Gr, RectangleF rc)
|
||
{
|
||
if (this.AnalogMeter == null)
|
||
return false;
|
||
|
||
Color bodyColor = this.AnalogMeter.BodyColor;
|
||
Color cDark = LBColorManager.StepColor(bodyColor, 20);
|
||
using LinearGradientBrush br1 = new LinearGradientBrush(rc, bodyColor, cDark, 45);
|
||
Gr.FillEllipse(br1, rc);
|
||
|
||
float drawRatio = this.AnalogMeter.GetDrawRatio();
|
||
|
||
RectangleF _rc = rc;
|
||
_rc.X += 3 * drawRatio;
|
||
_rc.Y += 3 * drawRatio;
|
||
_rc.Width -= 6 * drawRatio;
|
||
_rc.Height -= 6 * drawRatio;
|
||
|
||
using LinearGradientBrush br2 = new LinearGradientBrush(_rc, cDark, bodyColor, 45);
|
||
Gr.FillEllipse(br2, _rc);
|
||
|
||
return true;
|
||
}
|
||
|
||
public override bool DrawThresholds(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
public override bool DrawDivisions(Graphics Gr, RectangleF rc)
|
||
{
|
||
if (this.AnalogMeter == null)
|
||
return false;
|
||
|
||
PointF needleCenter = this.AnalogMeter.GetNeedleCenter();
|
||
float startAngle = this.AnalogMeter.GetStartAngle();
|
||
float endAngle = this.AnalogMeter.GetEndAngle();
|
||
float scaleDivisions = this.AnalogMeter.ScaleDivisions;
|
||
float scaleSubDivisions = this.AnalogMeter.ScaleSubDivisions;
|
||
float drawRatio = this.AnalogMeter.GetDrawRatio();
|
||
double minValue = this.AnalogMeter.MinValue;
|
||
double maxValue = this.AnalogMeter.MaxValue;
|
||
Color scaleColor = this.AnalogMeter.ScaleColor;
|
||
|
||
float cx = needleCenter.X;
|
||
float cy = needleCenter.Y;
|
||
float w = rc.Width;
|
||
float h = rc.Height;
|
||
|
||
float incr = LBMath.GetRadian((endAngle - startAngle) / ((scaleDivisions - 1) * (scaleSubDivisions + 1)));
|
||
float currentAngle = LBMath.GetRadian(startAngle);
|
||
float radius = (float)(w / 2 - (w * 0.08));
|
||
float rulerValue = (float)minValue;
|
||
|
||
using Pen pen = new Pen(scaleColor, (2 * drawRatio));
|
||
using SolidBrush br = new SolidBrush(scaleColor);
|
||
|
||
PointF ptStart = new PointF(0, 0);
|
||
PointF ptEnd = new PointF(0, 0);
|
||
int n = 0;
|
||
for (; n < scaleDivisions; n++)
|
||
{
|
||
//Draw Thick Line
|
||
ptStart.X = (float)(cx + radius * Math.Cos(currentAngle));
|
||
ptStart.Y = (float)(cy + radius * Math.Sin(currentAngle));
|
||
ptEnd.X = (float)(cx + (radius - w / 20) * Math.Cos(currentAngle));
|
||
ptEnd.Y = (float)(cy + (radius - w / 20) * Math.Sin(currentAngle));
|
||
Gr.DrawLine(pen, ptStart, ptEnd);
|
||
|
||
//Draw Strings
|
||
using Font font = new Font(this.AnalogMeter.Font.FontFamily, (float)(6F * drawRatio));
|
||
|
||
float tx = (float)(cx + (radius - (20 * drawRatio)) * Math.Cos(currentAngle));
|
||
float ty = (float)(cy + (radius - (20 * drawRatio)) * Math.Sin(currentAngle));
|
||
double val = Math.Round(rulerValue);
|
||
String str = String.Format("{0,0:D}", (int)val);
|
||
Gr.DrawString(str, font, scaleColor, new Rectangle((int)(tx - w), (int)(ty - h), (int)(w * 2), (int)(h * 2)), ContentAlignment.MiddleCenter);
|
||
|
||
rulerValue += (float)((maxValue - minValue) / (scaleDivisions - 1));
|
||
|
||
if (n == scaleDivisions - 1)
|
||
break;
|
||
|
||
if (scaleDivisions <= 0)
|
||
currentAngle += incr;
|
||
else
|
||
{
|
||
for (int j = 0; j <= scaleSubDivisions; j++)
|
||
{
|
||
currentAngle += incr;
|
||
ptStart.X = (float)(cx + radius * Math.Cos(currentAngle));
|
||
ptStart.Y = (float)(cy + radius * Math.Sin(currentAngle));
|
||
ptEnd.X = (float)(cx + (radius - w / 50) * Math.Cos(currentAngle));
|
||
ptEnd.Y = (float)(cy + (radius - w / 50) * Math.Sin(currentAngle));
|
||
Gr.DrawLine(pen, ptStart, ptEnd);
|
||
}
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
public override bool DrawUM(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
public override bool DrawValue(Graphics gr, RectangleF rc)
|
||
{
|
||
return false;
|
||
}
|
||
|
||
public override bool DrawNeedle(Graphics Gr, RectangleF rc)
|
||
{
|
||
if (this.AnalogMeter == null)
|
||
return false;
|
||
|
||
float w, h;
|
||
w = rc.Width;
|
||
h = rc.Height;
|
||
|
||
double minValue = this.AnalogMeter.MinValue;
|
||
double maxValue = this.AnalogMeter.MaxValue;
|
||
double currValue = this.AnalogMeter.Value;
|
||
float startAngle = this.AnalogMeter.GetStartAngle();
|
||
float endAngle = this.AnalogMeter.GetEndAngle();
|
||
PointF needleCenter = this.AnalogMeter.GetNeedleCenter();
|
||
|
||
float radius = (float)(w / 2 - (w * 0.12));
|
||
float val = (float)(maxValue - minValue);
|
||
|
||
val = (float)((100 * (currValue - minValue)) / val);
|
||
val = ((endAngle - startAngle) * val) / 100;
|
||
val += startAngle;
|
||
|
||
float angle = LBMath.GetRadian(val);
|
||
|
||
float cx = needleCenter.X;
|
||
float cy = needleCenter.Y;
|
||
|
||
PointF ptStart = new PointF(0, 0);
|
||
PointF ptEnd = new PointF(0, 0);
|
||
|
||
using GraphicsPath pth1 = new GraphicsPath();
|
||
|
||
ptStart.X = cx;
|
||
ptStart.Y = cy;
|
||
angle = LBMath.GetRadian(val + 10);
|
||
ptEnd.X = (float)(cx + (w * .09F) * Math.Cos(angle));
|
||
ptEnd.Y = (float)(cy + (w * .09F) * Math.Sin(angle));
|
||
pth1.AddLine(ptStart, ptEnd);
|
||
|
||
ptStart = ptEnd;
|
||
angle = LBMath.GetRadian(val);
|
||
ptEnd.X = (float)(cx + radius * Math.Cos(angle));
|
||
ptEnd.Y = (float)(cy + radius * Math.Sin(angle));
|
||
pth1.AddLine(ptStart, ptEnd);
|
||
|
||
ptStart = ptEnd;
|
||
angle = LBMath.GetRadian(val - 10);
|
||
ptEnd.X = (float)(cx + (w * .09F) * Math.Cos(angle));
|
||
ptEnd.Y = (float)(cy + (w * .09F) * Math.Sin(angle));
|
||
pth1.AddLine(ptStart, ptEnd);
|
||
|
||
pth1.CloseFigure();
|
||
|
||
using SolidBrush br = new SolidBrush(this.AnalogMeter.NeedleColor);
|
||
using Pen pen = new Pen(this.AnalogMeter.NeedleColor);
|
||
Gr.DrawPath(pen, pth1);
|
||
Gr.FillPath(br, pth1);
|
||
|
||
return true;
|
||
}
|
||
|
||
public override bool DrawNeedleCover(Graphics Gr, RectangleF rc)
|
||
{
|
||
if (this.AnalogMeter == null)
|
||
return false;
|
||
|
||
Color clr = this.AnalogMeter.NeedleColor;
|
||
RectangleF _rc = rc;
|
||
float drawRatio = this.AnalogMeter.GetDrawRatio();
|
||
|
||
Color clr1 = Color.FromArgb(70, clr);
|
||
|
||
_rc.Inflate(5 * drawRatio, 5 * drawRatio);
|
||
|
||
using SolidBrush brTransp = new SolidBrush(clr1);
|
||
Gr.FillEllipse(brTransp, _rc);
|
||
|
||
clr1 = clr;
|
||
Color clr2 = LBColorManager.StepColor(clr, 75);
|
||
using LinearGradientBrush br1 = new LinearGradientBrush(rc, clr1, clr2, 45);
|
||
Gr.FillEllipse(br1, rc);
|
||
return true;
|
||
}
|
||
|
||
public override bool DrawGlass(Graphics Gr, RectangleF rc)
|
||
{
|
||
if (this.AnalogMeter == null)
|
||
return false;
|
||
|
||
if (this.AnalogMeter.ViewGlass == false)
|
||
return true;
|
||
|
||
Color clr1 = Color.FromArgb(40, 200, 200, 200);
|
||
Color clr2 = Color.FromArgb(0, 200, 200, 200);
|
||
using LinearGradientBrush br1 = new LinearGradientBrush(rc, clr1, clr2, 45);
|
||
Gr.FillEllipse(br1, rc);
|
||
|
||
return true;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Manager for color
|
||
/// </summary>
|
||
public class LBColorManager : Object
|
||
{
|
||
public static double BlendColour(double fg, double bg, double alpha)
|
||
{
|
||
double result = bg + (alpha * (fg - bg));
|
||
if (result < 0.0)
|
||
result = 0.0;
|
||
if (result > 255)
|
||
result = 255;
|
||
return result;
|
||
}
|
||
|
||
public static Color StepColor(Color clr, int alpha)
|
||
{
|
||
if (alpha == 100)
|
||
return clr;
|
||
|
||
byte a = clr.A;
|
||
byte r = clr.R;
|
||
byte g = clr.G;
|
||
byte b = clr.B;
|
||
float bg = 0;
|
||
|
||
int _alpha = Math.Min(alpha, 200);
|
||
_alpha = Math.Max(alpha, 0);
|
||
double ialpha = ((double)(_alpha - 100.0)) / 100.0;
|
||
|
||
if (ialpha > 100)
|
||
{
|
||
// blend with white
|
||
bg = 255.0F;
|
||
ialpha = 1.0F - ialpha; // 0 = transparent fg; 1 = opaque fg
|
||
}
|
||
else
|
||
{
|
||
// blend with black
|
||
bg = 0.0F;
|
||
ialpha = 1.0F + ialpha; // 0 = transparent fg; 1 = opaque fg
|
||
}
|
||
|
||
r = (byte)(LBColorManager.BlendColour(r, bg, ialpha));
|
||
g = (byte)(LBColorManager.BlendColour(g, bg, ialpha));
|
||
b = (byte)(LBColorManager.BlendColour(b, bg, ialpha));
|
||
|
||
return Color.FromArgb(a, r, g, b);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// Mathematic Functions
|
||
/// </summary>
|
||
public class LBMath : Object
|
||
{
|
||
public static float GetRadian(float val)
|
||
{
|
||
return (float)(val * Math.PI / 180);
|
||
}
|
||
}
|
||
} |