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