332 lines
9.4 KiB
C#
332 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) 2012-2022 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: UIScrollingText.cs
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* 文件说明: 滚动文字
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* 当前版本: V3.1
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* 创建日期: 2020-06-29
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*
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* 2020-06-29: V2.2.6 新增控件
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* 2021-07-16: V3.0.5 增加属性控制开启滚动
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* 2022-03-19: V3.1.1 重构主题配色
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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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[ToolboxItem(true)]
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public class UIScrollingText : UIControl
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{
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private readonly Timer timer;
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private int XPos = int.MinValue;
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private int XPos1 = int.MaxValue;
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private int interval = 200;
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private int TextWidth = int.MinValue;
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public UIScrollingText()
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{
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SetStyleFlags(true, false);
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fillColor = UIStyles.Blue.ScrollingTextFillColor;
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foreColor = UIStyles.Blue.ScrollingTextForeColor;
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Reset();
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timer = new Timer();
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timer.Interval = interval;
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timer.Tick += Timer_Tick;
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}
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[DefaultValue(false), Description("是否滚动"), Category("SunnyUI")]
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public bool Active
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{
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get => timer.Enabled;
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set
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{
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timer.Enabled = value;
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if (!value)
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{
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Reset();
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}
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}
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}
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[DefaultValue(false), Description("点击暂停滚动"), Category("SunnyUI")]
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public bool ClickPause
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{
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get; set;
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}
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private void Reset()
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{
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XPos = int.MinValue;
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XPos1 = int.MaxValue;
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Invalidate();
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}
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protected override void Dispose(bool disposing)
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{
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base.Dispose(disposing);
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timer?.Stop();
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timer?.Dispose();
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}
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public void Start()
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{
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timer.Start();
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}
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public void Stop()
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{
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timer.Stop();
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}
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[DefaultValue(200), Description("刷新间隔"), Category("SunnyUI")]
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public int Interval
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{
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get => interval;
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set
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{
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interval = Math.Max(value, 50);
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timer.Stop();
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timer.Interval = interval;
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timer.Start();
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}
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}
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private int offset = 10;
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[DefaultValue(10), Description("偏移量"), Category("SunnyUI")]
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public int Offset
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{
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get => offset;
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set => offset = Math.Max(2, 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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if (XPos == int.MinValue)
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{
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Invalidate();
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}
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else
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{
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if (ScrollingType == UIScrollingType.RightToLeft)
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{
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XPos -= Offset;
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if (XPos + TextWidth < 0)
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{
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XPos = XPos1 - Offset;
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XPos1 = int.MaxValue;
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}
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}
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if (ScrollingType == UIScrollingType.LeftToRight)
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{
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XPos += Offset;
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if (XPos > Width)
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{
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XPos = XPos1 + Offset;
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XPos1 = int.MaxValue;
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}
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}
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Invalidate();
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}
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}
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protected override void OnMouseDoubleClick(MouseEventArgs e)
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{
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if (ClickPause)
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{
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timer.Enabled = !timer.Enabled;
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}
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base.OnMouseDoubleClick(e);
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}
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/// <summary>
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/// 绘制前景颜色
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/// </summary>
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/// <param name="g">绘图图面</param>
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/// <param name="path">绘图路径</param>
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protected override void OnPaintFore(Graphics g, GraphicsPath path)
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{
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SizeF sf = g.MeasureString(Text, Font);
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int y = (int)((Height - sf.Height) / 2);
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if (XPos == int.MinValue)
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{
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XPos = (int)((Width - sf.Width) / 2);
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TextWidth = (int)sf.Width;
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}
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g.DrawString(Text, Font, ForeColor, XPos, y);
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if (ScrollingType == UIScrollingType.LeftToRight)
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{
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if (TextWidth <= Width)
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{
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if (XPos + TextWidth > Width)
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{
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XPos1 = XPos - Width;
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g.DrawString(Text, Font, ForeColor, XPos1, y);
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}
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}
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else
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{
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if (XPos > 0)
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{
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if (XPos1 == int.MaxValue)
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XPos1 = Offset - TextWidth;
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else
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XPos1 += Offset;
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g.DrawString(Text, Font, ForeColor, XPos1, y);
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}
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}
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}
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if (ScrollingType == UIScrollingType.RightToLeft)
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{
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if (TextWidth <= Width)
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{
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if (XPos < 0)
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{
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XPos1 = Width + XPos;
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g.DrawString(Text, Font, ForeColor, XPos1, y);
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}
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}
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else
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{
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if (XPos + TextWidth < Width - Offset)
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{
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if (XPos1 == int.MaxValue)
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XPos1 = Width - Offset;
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else
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XPos1 -= Offset;
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g.DrawString(Text, Font, ForeColor, XPos1, y);
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}
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}
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}
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}
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/// <summary>
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/// 重载控件尺寸变更
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/// </summary>
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/// <param name="e">参数</param>
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protected override void OnSizeChanged(EventArgs e)
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{
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Reset();
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base.OnSizeChanged(e);
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}
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private UIScrollingType scrollingType;
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[DefaultValue(UIScrollingType.RightToLeft), Description("滚动方向"), Category("SunnyUI")]
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public UIScrollingType ScrollingType
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{
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get => scrollingType;
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set
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{
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scrollingType = value;
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Reset();
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Invalidate();
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}
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}
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protected override void OnTextChanged(EventArgs e)
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{
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Reset();
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base.OnTextChanged(e);
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}
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public enum UIScrollingType
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{
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RightToLeft,
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LeftToRight
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}
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/// <summary>
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/// 设置主题样式
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/// </summary>
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/// <param name="uiColor">主题样式</param>
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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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fillColor = uiColor.ScrollingTextFillColor;
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foreColor = uiColor.ScrollingTextForeColor;
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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), "243, 249, 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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[DefaultValue(typeof(Color), "244, 244, 244")]
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[Description("不可用时填充颜色"), Category("SunnyUI")]
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public Color FillDisableColor
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{
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get => fillDisableColor;
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set => SetFillDisableColor(value);
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}
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[DefaultValue(typeof(Color), "173, 178, 181")]
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[Description("不可用时边框颜色"), Category("SunnyUI")]
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public Color RectDisableColor
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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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[DefaultValue(typeof(Color), "109, 109, 103")]
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[Description("不可用时字体颜色"), Category("SunnyUI")]
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public Color ForeDisableColor
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{
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get => foreDisableColor;
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set => SetForeDisableColor(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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}
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} |