128 lines
3.8 KiB
C#
128 lines
3.8 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) 2012-2020 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: UIWaitingBar.cs
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* 文件说明: 等待滚动条控件
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* 当前版本: V2.2
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* 创建日期: 2020-07-20
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*
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* 2020-07-20: V2.2.6 新增等待滚动条控件
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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.Windows.Forms;
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namespace Sunny.UI
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{
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[ToolboxItem(true)]
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public sealed class UIWaitingBar : UIControl
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{
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private System.Windows.Forms.Timer timer = new System.Windows.Forms.Timer();
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public UIWaitingBar()
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{
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MinimumSize = new Size(70, 23);
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Size = new Size(300, 29);
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ShowText = false;
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PaintOther += UIWaitingBar_PaintOther;
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fillColor = UIColor.LightBlue;
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foreColor = UIColor.Blue;
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timer.Interval = 200;
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timer.Tick += Timer_Tick;
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timer.Start();
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}
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private void UIWaitingBar_PaintOther(object sender, PaintEventArgs e)
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{
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e.Graphics.FillRoundRectangle(rectColor, (int)dz + 1, 1, sliderWidth, Height - 3, Radius);
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}
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//d是度数，不是弧度
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private double d;
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private double dz;
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private int blockCount = 20;
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[DefaultValue(20)]
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[Description("显示块个数，此数越大，移动速度越快"), Category("SunnyUI")]
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public int BlockCount
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{
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get => blockCount;
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set => blockCount = Math.Max(10, value);
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}
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private void Timer_Tick(object sender, EventArgs e)
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{
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//移动距离要减去滑块本身的宽度
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double dMoveDistance = Width - SliderWidth - 3;
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//需要变化的次数
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double dStep = dMoveDistance / blockCount;
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//每次变化所增加的度数
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double dPer = 180.0 / dStep;
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d += dPer;
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if (d > 360)
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{
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//一个周期是360度
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d = 0;
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}
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//通过公式：弧度=度*π/180，将度数i转为Math.Sin()所需要的弧度数
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dz = dMoveDistance * (1 + Math.Sin((d - 90) * Math.PI / 180)) / 2;
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Invalidate();
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}
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[DefaultValue(200)]
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[Description("移动显示时间间隔"), Category("SunnyUI")]
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public int Interval
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{
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get => timer.Interval;
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set
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{
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timer.Stop();
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timer.Interval = Math.Max(50, value);
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timer.Start();
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}
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}
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private int sliderWidth = 60;
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[DefaultValue(60)]
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[Description("滑块宽度"), Category("SunnyUI")]
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public int SliderWidth
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{
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get => sliderWidth;
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set
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{
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sliderWidth = value;
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Invalidate();
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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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if (uiColor.IsCustom()) return;
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fillColor = uiColor.ProcessBarFillColor;
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foreColor = uiColor.ProcessBarForeColor;
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Invalidate();
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}
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}
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} |