307 lines
9.4 KiB
C#
307 lines
9.4 KiB
C#
/******************************************************************************
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* SunnyUI 开源控件库、工具类库、扩展类库、多页面开发框架。
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* CopyRight (C) 2012-2021 ShenYongHua(沈永华).
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* QQ群：56829229 QQ：17612584 EMail：SunnyUI@QQ.Com
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*
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* Blog: https://www.cnblogs.com/yhuse
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* Gitee: https://gitee.com/yhuse/SunnyUI
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* GitHub: https://github.com/yhuse/SunnyUI
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*
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* SunnyUI.dll can be used for free under the GPL-3.0 license.
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* If you use this code, please keep this note.
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* 如果您使用此代码，请保留此说明。
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******************************************************************************
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* 文件名称: UITrackBar.cs
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* 文件说明: 进度指示条
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* 当前版本: V3.0
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* 创建日期: 2020-01-01
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*
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* 2020-01-01: V2.2.0 增加文件说明
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* 2021-04-11: V3.0.2 增加垂直显示方式
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******************************************************************************/
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace Sunny.UI
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{
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[DefaultEvent("ValueChanged")]
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[DefaultProperty("Value")]
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[ToolboxItem(true)]
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public sealed class UITrackBar : UIControl
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{
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public event EventHandler ValueChanged;
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public UITrackBar()
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{
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SetStyleFlags();
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Width = 150;
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Height = 29;
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ShowText = false;
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ShowRect = false;
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fillColor = UIColor.LightBlue;
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foreColor = UIColor.Blue;
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rectColor = UIColor.Blue;
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}
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public enum BarDirection
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{
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/// <summary>
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/// 水平的
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/// </summary>
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Horizontal,
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/// <summary>
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/// 竖直的
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/// </summary>
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Vertical
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}
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private BarDirection direction = BarDirection.Horizontal;
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[DefaultValue(BarDirection.Horizontal)]
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[Description("线条方向"), Category("SunnyUI")]
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public BarDirection Direction
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{
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get => direction;
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set
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{
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direction = value;
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Invalidate();
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}
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}
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private int _maximum = 100;
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private int _minimum;
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private int trackBarValue;
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[DefaultValue(false)]
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[Description("是否只读"), Category("SunnyUI")]
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public bool ReadOnly { get; set; }
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[DefaultValue(100)]
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[Description("最大值"), Category("SunnyUI")]
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public int Maximum
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{
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get => _maximum;
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set
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{
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_maximum = value;
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if (_maximum <= _minimum)
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_minimum = _maximum - 1;
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Invalidate();
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}
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}
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[DefaultValue(0)]
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[Description("最小值"), Category("SunnyUI")]
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public int Minimum
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{
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get => _minimum;
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set
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{
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_minimum = value;
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if (_minimum >= _maximum)
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_maximum = _minimum + 1;
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Invalidate();
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}
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}
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[DefaultValue(0)]
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[Description("当前值"), Category("SunnyUI")]
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public int Value
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{
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get => trackBarValue;
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set
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{
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int v = Math.Min(Math.Max(Minimum, value), Maximum);
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if (trackBarValue != v)
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{
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trackBarValue = v;
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Invalidate();
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}
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ValueChanged?.Invoke(this, EventArgs.Empty);
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}
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}
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public override void SetStyleColor(UIBaseStyle uiColor)
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{
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base.SetStyleColor(uiColor);
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rectDisableColor = uiColor.TrackDisableColor;
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rectColor = uiColor.TrackBarRectColor;
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fillColor = uiColor.TrackBarFillColor;
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foreColor = uiColor.TrackBarForeColor;
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Invalidate();
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}
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protected override void OnPaintFill(Graphics g, GraphicsPath path)
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{
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g.Clear(fillColor);
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if (Direction == BarDirection.Horizontal)
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{
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g.FillRoundRectangle(rectDisableColor,
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new Rectangle(5, Height / 2 - 3, Width - 1 - 10, 6), 6);
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int len = (int)((Value - Minimum) * 1.0 * (Width - 1 - 10) / (Maximum - Minimum));
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if (len > 0)
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{
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g.FillRoundRectangle(foreColor, new Rectangle(5, Height / 2 - 3, len, 6), 6);
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}
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g.FillRoundRectangle(fillColor.IsValid() ? fillColor : Color.White,
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new Rectangle(len, (Height - BarSize) / 2, 10, BarSize), 5);
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using (Pen pen = new Pen(rectColor, 2))
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{
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g.SetHighQuality();
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g.DrawRoundRectangle(pen,
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new Rectangle(len + 1, (Height - BarSize) / 2 + 1, 8, BarSize - 2), 5);
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g.SetDefaultQuality();
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}
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}
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if (Direction == BarDirection.Vertical)
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{
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g.FillRoundRectangle(rectDisableColor,
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new Rectangle(Width / 2 - 3, 5, 6, Height - 1 - 10), 6);
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int len = (int)((Value - Minimum) * 1.0 * (Height - 1 - 10) / (Maximum - Minimum));
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if (len > 0)
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{
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g.FillRoundRectangle(foreColor, new Rectangle(Width / 2 - 3, Height - len - 5, 6, len), 6);
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}
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g.FillRoundRectangle(fillColor.IsValid() ? fillColor : Color.White,
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new Rectangle((Width - BarSize) / 2, Height - len - 10 - 1, BarSize, 10), 5);
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using (Pen pen = new Pen(rectColor, 2))
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{
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g.SetHighQuality();
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g.DrawRoundRectangle(pen,
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new Rectangle((Width - BarSize) / 2 + 1, Height - len - 10, BarSize - 2, 8), 5);
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g.SetDefaultQuality();
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}
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}
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}
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private int trackBarSize = 20;
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[DefaultValue(20)]
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[Description("按钮大小"), Category("SunnyUI")]
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public int BarSize
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{
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get => trackBarSize;
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set
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{
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trackBarSize = Math.Max(12, value);
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Invalidate();
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}
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}
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protected override void OnMouseClick(MouseEventArgs e)
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{
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base.OnMouseClick(e);
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if (!ReadOnly)
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{
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if (Direction == BarDirection.Horizontal)
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{
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int len = e.X - 5;
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int value = (len * 1.0 * (Maximum - Minimum) / (Width - 10)).RoundEx() + Minimum;
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Value = Math.Min(Math.Max(Minimum, value), Maximum);
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}
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if (Direction == BarDirection.Vertical)
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{
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int len = Height - 10 - e.Y;
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int value = (len * 1.0 * (Maximum - Minimum) / (Height - 10)).RoundEx() + Minimum;
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Value = Math.Min(Math.Max(Minimum, value), Maximum);
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}
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}
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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if (IsPress && !ReadOnly)
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{
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if (Direction == BarDirection.Horizontal)
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{
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int len = e.X - 5;
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int value = (len * 1.0 * (Maximum - Minimum) / (Width - 10)).RoundEx() + Minimum;
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Value = Math.Min(Math.Max(Minimum, value), Maximum);
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}
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if (Direction == BarDirection.Vertical)
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{
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int len = Height - 10 - e.Y;
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int value = (len * 1.0 * (Maximum - Minimum) / (Height - 10)).RoundEx() + Minimum;
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Value = Math.Min(Math.Max(Minimum, value), Maximum);
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}
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}
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}
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protected override void OnMouseDown(MouseEventArgs e)
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{
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base.OnMouseDown(e);
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IsPress = true;
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Invalidate();
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}
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protected override void OnMouseUp(MouseEventArgs e)
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{
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base.OnMouseUp(e);
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IsPress = false;
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Invalidate();
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}
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/// <summary>
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/// 填充颜色，当值为背景色或透明色或空值则不填充
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/// </summary>
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[Description("填充颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "235, 243, 255")]
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public Color FillColor
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{
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get => fillColor;
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set => SetFillColor(value);
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}
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/// <summary>
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/// 字体颜色
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/// </summary>
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[Description("字体颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "80, 160, 255")]
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public override Color ForeColor
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{
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get => foreColor;
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set => SetForeColor(value);
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}
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/// <summary>
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/// 边框颜色
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/// </summary>
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[Description("边框颜色"), Category("SunnyUI")]
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[DefaultValue(typeof(Color), "80, 160, 255")]
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public Color RectColor
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{
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get => rectColor;
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set => SetRectColor(value);
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}
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[DefaultValue(typeof(Color), "173, 178, 181")]
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[Description("不可用时颜色"), Category("SunnyUI")]
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public Color DisableColor
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{
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get => rectDisableColor;
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set => SetRectDisableColor(value);
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}
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}
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} |