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343 lines
12 KiB
C#
343 lines
12 KiB
C#
// ***********************************************************************
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// Assembly : HZH_Controls
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// Created : 08-29-2019
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//
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// ***********************************************************************
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// <copyright file="UCTrackBar.cs">
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// Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
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// </copyright>
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//
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// Blog: https://www.cnblogs.com/bfyx
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// GitHub：https://github.com/kwwwvagaa/NetWinformControl
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// gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
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//
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// If you use this code, please keep this note.
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// ***********************************************************************
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.ComponentModel;
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namespace HZH_Controls.Controls
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{
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/// <summary>
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/// Class UCTrackBar.
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/// Implements the <see cref="System.Windows.Forms.Control" />
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/// </summary>
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/// <seealso cref="System.Windows.Forms.Control" />
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[DefaultEvent("ValueChanged")]
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public class UCTrackBar : Control
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{
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/// <summary>
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/// Occurs when [value changed].
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/// </summary>
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[Description("值改变事件"), Category("自定义")]
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public event EventHandler ValueChanged;
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/// <summary>
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/// The dcimal digits
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/// </summary>
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private int dcimalDigits = 0;
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/// <summary>
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/// Gets or sets the dcimal digits.
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/// </summary>
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/// <value>The dcimal digits.</value>
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[Description("值小数精确位数"), Category("自定义")]
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public int DcimalDigits
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{
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get { return dcimalDigits; }
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set { dcimalDigits = value; }
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}
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/// <summary>
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/// The line width
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/// </summary>
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private float lineWidth = 10;
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/// <summary>
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/// Gets or sets the width of the line.
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/// </summary>
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/// <value>The width of the line.</value>
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[Description("线宽度"), Category("自定义")]
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public float LineWidth
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{
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get { return lineWidth; }
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set { lineWidth = value; }
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}
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/// <summary>
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/// The minimum value
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/// </summary>
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private float minValue = 0;
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/// <summary>
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/// Gets or sets the minimum value.
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/// </summary>
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/// <value>The minimum value.</value>
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[Description("最小值"), Category("自定义")]
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public float MinValue
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{
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get { return minValue; }
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set
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{
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if (minValue > m_value)
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return;
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minValue = value;
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this.Refresh();
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}
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}
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/// <summary>
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/// The maximum value
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/// </summary>
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private float maxValue = 100;
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/// <summary>
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/// Gets or sets the maximum value.
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/// </summary>
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/// <value>The maximum value.</value>
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[Description("最大值"), Category("自定义")]
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public float MaxValue
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{
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get { return maxValue; }
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set
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{
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if (value < m_value)
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return;
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maxValue = value;
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this.Refresh();
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}
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}
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/// <summary>
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/// The m value
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/// </summary>
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private float m_value = 0;
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/// <summary>
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/// Gets or sets the value.
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/// </summary>
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/// <value>The value.</value>
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[Description("值"), Category("自定义")]
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public float Value
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{
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get { return this.m_value; }
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set
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{
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if (value > maxValue || value < minValue)
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return;
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var v = (float)Math.Round((double)value, dcimalDigits);
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if (m_value == v)
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return;
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this.m_value = v;
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this.Refresh();
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if (ValueChanged != null)
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{
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ValueChanged(this, null);
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}
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}
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}
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/// <summary>
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/// The m line color
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/// </summary>
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private Color m_lineColor = Color.FromArgb(228, 231, 237);
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/// <summary>
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/// Gets or sets the color of the line.
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/// </summary>
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/// <value>The color of the line.</value>
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[Description("线颜色"), Category("自定义")]
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public Color LineColor
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{
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get { return m_lineColor; }
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set
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{
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m_lineColor = value;
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this.Refresh();
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}
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}
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/// <summary>
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/// The m value color
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/// </summary>
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private Color m_valueColor = Color.FromArgb(255, 77, 59);
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/// <summary>
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/// Gets or sets the color of the value.
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/// </summary>
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/// <value>The color of the value.</value>
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[Description("值颜色"), Category("自定义")]
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public Color ValueColor
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{
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get { return m_valueColor; }
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set
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{
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m_valueColor = value;
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this.Refresh();
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}
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}
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/// <summary>
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/// The is show tips
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/// </summary>
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private bool isShowTips = true;
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/// <summary>
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/// Gets or sets a value indicating whether this instance is show tips.
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/// </summary>
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/// <value><c>true</c> if this instance is show tips; otherwise, <c>false</c>.</value>
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[Description("点击滑动时是否显示数值提示"), Category("自定义")]
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public bool IsShowTips
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{
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get { return isShowTips; }
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set { isShowTips = value; }
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}
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/// <summary>
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/// Gets or sets the tips format.
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/// </summary>
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/// <value>The tips format.</value>
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[Description("显示数值提示的格式化形式"), Category("自定义")]
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public string TipsFormat { get; set; }
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/// <summary>
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/// The m line rectangle
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/// </summary>
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RectangleF m_lineRectangle;
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/// <summary>
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/// The m track rectangle
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/// </summary>
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RectangleF m_trackRectangle;
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/// <summary>
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/// Initializes a new instance of the <see cref="UCTrackBar" /> class.
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/// </summary>
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public UCTrackBar()
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{
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this.Size = new Size(250, 30);
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this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
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this.SetStyle(ControlStyles.DoubleBuffer, true);
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this.SetStyle(ControlStyles.ResizeRedraw, true);
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this.SetStyle(ControlStyles.Selectable, true);
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this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
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this.SetStyle(ControlStyles.UserPaint, true);
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this.MouseDown += UCTrackBar_MouseDown;
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this.MouseMove += UCTrackBar_MouseMove;
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this.MouseUp += UCTrackBar_MouseUp;
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}
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/// <summary>
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/// The BLN down
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/// </summary>
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bool blnDown = false;
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/// <summary>
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/// Handles the MouseDown event of the UCTrackBar control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs" /> instance containing the event data.</param>
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void UCTrackBar_MouseDown(object sender, MouseEventArgs e)
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{
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if (m_lineRectangle.Contains(e.Location) || m_trackRectangle.Contains(e.Location))
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{
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blnDown = true;
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Value = minValue+((float)e.Location.X / (float)this.Width) * (maxValue - minValue);
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ShowTips();
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}
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}
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/// <summary>
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/// Handles the MouseMove event of the UCTrackBar control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs" /> instance containing the event data.</param>
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void UCTrackBar_MouseMove(object sender, MouseEventArgs e)
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{
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if (blnDown)
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{
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Value = minValue + ((float)e.Location.X / (float)this.Width) * (maxValue - minValue);
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ShowTips();
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}
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}
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/// <summary>
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/// Handles the MouseUp event of the UCTrackBar control.
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/// </summary>
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/// <param name="sender">The source of the event.</param>
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/// <param name="e">The <see cref="MouseEventArgs" /> instance containing the event data.</param>
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void UCTrackBar_MouseUp(object sender, MouseEventArgs e)
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{
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blnDown = false;
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if (frmTips != null && !frmTips.IsDisposed)
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{
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frmTips.Close();
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frmTips = null;
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}
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}
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/// <summary>
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/// The FRM tips
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/// </summary>
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Forms.FrmAnchorTips frmTips = null;
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/// <summary>
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/// Shows the tips.
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/// </summary>
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private void ShowTips()
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{
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if (isShowTips)
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{
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string strValue = Value.ToString();
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if (!string.IsNullOrEmpty(TipsFormat))
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{
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try
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{
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strValue = Value.ToString(TipsFormat);
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}
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catch { }
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}
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var p = this.PointToScreen(new Point((int)m_trackRectangle.X, (int)m_trackRectangle.Y));
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if (frmTips == null || frmTips.IsDisposed || !frmTips.Visible)
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{
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frmTips = Forms.FrmAnchorTips.ShowTips(new Rectangle(p.X, p.Y, (int)m_trackRectangle.Width, (int)m_trackRectangle.Height), strValue, Forms.AnchorTipsLocation.TOP, ValueColor, autoCloseTime: -1);
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}
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else
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{
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frmTips.RectControl = new Rectangle(p.X, p.Y, (int)m_trackRectangle.Width, (int)m_trackRectangle.Height);
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frmTips.StrMsg = strValue;
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}
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}
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}
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/// <summary>
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/// Handles the <see cref="E:Paint" /> event.
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/// </summary>
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/// <param name="e">The <see cref="PaintEventArgs" /> instance containing the event data.</param>
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protected override void OnPaint(PaintEventArgs e)
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{
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base.OnPaint(e);
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Graphics g = e.Graphics;
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g.SetGDIHigh();
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m_lineRectangle = new RectangleF(lineWidth, (this.Size.Height - lineWidth) / 2, this.Size.Width - lineWidth * 2, lineWidth);
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GraphicsPath pathLine = ControlHelper.CreateRoundedRectanglePath(m_lineRectangle, 5);
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g.FillPath(new SolidBrush(m_lineColor), pathLine);
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GraphicsPath valueLine = ControlHelper.CreateRoundedRectanglePath(new RectangleF(lineWidth, (this.Size.Height - lineWidth) / 2, ((float)(m_value - minValue) / (float)(maxValue - minValue)) * m_lineRectangle.Width, lineWidth), 5);
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g.FillPath(new SolidBrush(m_valueColor), valueLine);
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m_trackRectangle = new RectangleF(m_lineRectangle.Left - lineWidth + (((float)(m_value - minValue) / (float)(maxValue - minValue)) * (this.Size.Width - lineWidth * 2)), (this.Size.Height - lineWidth * 2) / 2, lineWidth * 2, lineWidth * 2);
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g.FillEllipse(new SolidBrush(m_valueColor), m_trackRectangle);
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g.FillEllipse(Brushes.White, new RectangleF(m_trackRectangle.X + m_trackRectangle.Width / 4, m_trackRectangle.Y + m_trackRectangle.Height / 4, m_trackRectangle.Width / 2, m_trackRectangle.Height / 2));
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}
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}
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}
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