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441 lines
14 KiB
C#
441 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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namespace HuizhongLibrary.MyAlphaControl
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{
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public partial class AlphaLabel : UserControl
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{
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private Bitmap m_BackgroundImage;
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/// <summary>
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/// 背景图片
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/// </summary>
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public new Bitmap BackgroundImage
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{
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get { return m_BackgroundImage; }
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set
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{
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m_BackgroundImage = value;
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}
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}
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private StringPool m_ScrollText = new StringPool();
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/// <summary>
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/// 滚动文字列表
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/// </summary>
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public StringPool ScrollText
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{
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get { return m_ScrollText; }
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set { m_ScrollText = value; }
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}
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private int m_ScrollTop = 0;
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public int ScrollTop
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{
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get { return m_ScrollTop; }
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set { m_ScrollTop = value; }
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}
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private int m_ScrollLeft = 0;
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public int ScrollLeft
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{
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get { return m_ScrollLeft; }
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set { m_ScrollLeft = value; }
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}
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private string m_MoveDirection = "None";
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/// <summary>
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/// 移动方向(None,Left,Right,Top,Boottom)
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/// </summary>
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public string MoveDirection
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{
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get { return m_MoveDirection; }
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set { m_MoveDirection = value; }
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}
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private int m_DurationStep = 5;
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/// <summary>
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/// 每次移动多少个像素(默认一个像素，最慢的移动速度)
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/// </summary>
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public int DurationStep
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{
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get { return m_DurationStep; }
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set { m_DurationStep = value; }
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}
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private StringFormat m_TextAlign = new StringFormat();
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/// <summary>
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/// 文本对齐
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/// </summary>
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public StringFormat TextAlign
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{
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get { return m_TextAlign; }
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set { m_TextAlign = value; }
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}
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private int m_Interval = 1;
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public int Interval
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{
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get { return m_Interval; }
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set { m_Interval = value; }
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}
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private int m_TimeOut = 30;
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public int TimeOut
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{
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get { return m_TimeOut; }
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set { m_TimeOut = value; }
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}
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private bool m_TickEnable = false;
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/// <summary>
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/// 是否启用倒计时
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/// </summary>
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public bool TickEnable
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{
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get { return m_TickEnable; }
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set
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{
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m_TickEnable = value;
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if (value == true) { StartTimeer(); }
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else { StopTimeer(); }
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}
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}
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private Color m_BorderColor = Color.Black;
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/// <summary>
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/// 边框粗细
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/// </summary>
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public Color BorderColor
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{
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get { return m_BorderColor; }
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set { m_BorderColor = value; }
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}
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private bool m_Visible = true;
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public new bool Visible
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{
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get { return m_Visible; }
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set
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{
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m_Visible = value;
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base.Visible = value;
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}
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}
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private string m_NullText = "";
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/// <summary>
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/// 空时显示的文本
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/// </summary>
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public string NullText
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{
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get { return m_NullText; }
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set { m_NullText = value; }
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}
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public bool ShowDateTime = false; //是否显示时间
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public string DateTimeFormat = "yyyy年M月d日HH:mm:ss";
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public int MaxRowNumber = 1;
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/// <summary>
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/// 当倒计时正常终止时触发
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/// </summary>
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public event Action<AlphaLabel> TimeTick;
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private int ScrollTextWidth = 0;
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private int SRCCOPY = 13369376;
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private Graphics G1;
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private Graphics G2;
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private IntPtr hdc1;
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private IntPtr hdc2;
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public AlphaLabel()
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{
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TextAlign.LineAlignment = StringAlignment.Near;
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TextAlign.Alignment = StringAlignment.Near;
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InitializeComponent();
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}
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#region 画背景图片(用于假透明显示)
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public void SetBackground(Bitmap bmp)
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{
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if (bmp == null) return;
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BackgroundImage = new Bitmap(this.Bounds.Width, this.Bounds.Height);
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Graphics G2 = Graphics.FromImage(BackgroundImage);
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G2.DrawImage(bmp, new Rectangle(0, 0, this.Bounds.Width, this.Bounds.Height), new Rectangle(this.Left, this.Top, this.Bounds.Width, this.Bounds.Height), GraphicsUnit.Pixel);
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G2.Dispose();
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//this.BorderStyle = BorderStyle.None;
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//this.BackColor=Color.Transparent;
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}
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#endregion
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#region 重画文字
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//private byte[] CacheImage = null;
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public void DrawString(int x, int y, string s)
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{
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Bitmap bmp = null;
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if (BackgroundImage == null)
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{
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bmp = new Bitmap(this.Bounds.Width, this.Bounds.Height);
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}
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else
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{
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//复制图片
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//CacheImage = CustomIO.GetPhoto(this.BackgroundImage);
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bmp = (Bitmap)BackgroundImage.Clone();
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}
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G1 = this.CreateGraphics();
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G2 = Graphics.FromImage(bmp);
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hdc1 = G1.GetHdc();
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hdc2 = G2.GetHdc();
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if (BackgroundImage == null) G2.Clear(this.BackColor);
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Brush backBrush = new SolidBrush(this.ForeColor);
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G2.DrawString(s, this.Font, backBrush, x, y);
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backBrush.Dispose();
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SystemInfo.BitBlt(hdc1, 0, 0, Width, Height, hdc2, 0, 0, SRCCOPY);
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G1.ReleaseHdc(hdc1);
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G2.ReleaseHdc(hdc2);
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G1.Dispose();
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G2.Dispose();
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bmp.Dispose();
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//if (pictureBox1.Image != null) pictureBox1.Image.Dispose();
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//pictureBox1.Image = bmp;
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//GC.Collect();
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}
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#endregion
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#region 移动文字
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public void MoveText()
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{
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if (this.MoveDirection == "Left")
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{
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if (this.ScrollLeft <= -this.ScrollTextWidth) { this.ScrollLeft = this.Width; AddScrollTextIndex(); }
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this.ScrollLeft -= this.DurationStep;
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}
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if (this.MoveDirection == "Right")
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{
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if (this.ScrollLeft >= this.Width) { this.ScrollLeft = -this.ScrollTextWidth; AddScrollTextIndex(); }
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this.ScrollLeft += this.DurationStep;
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}
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if (this.MoveDirection == "Top")
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{
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if (this.ScrollTop <= 0) { this.ScrollTop = this.Height; AddScrollTextIndex(); }
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this.ScrollTop -= this.DurationStep;
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}
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if (this.MoveDirection == "Bottom")
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{
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if (this.ScrollTop >= this.Height) { this.ScrollTop = 0; AddScrollTextIndex(); }
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this.ScrollTop += this.DurationStep;
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}
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this.DrawString(this.ScrollLeft, this.ScrollTop, this.Text);
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}
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#endregion
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#region 增加索引
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void AddScrollTextIndex()
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{
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if (string.IsNullOrEmpty(this.Text) == false) ScrollText.CheckIn(this.Text);
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if (ScrollText.Available == 0) this.Text = this.NullText;
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this.Text = ScrollText.CheckOut();
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InitScrollTextSize();
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//ScrollTextIndex++;
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//if (ScrollTextIndex >= this.ScrollText.Count)
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//{
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// ScrollTextIndex = 0;
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//}
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}
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#endregion
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#region 计算文字大小
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private SizeF MeasureString(string Text, Font font)
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{
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Bitmap bmp = new Bitmap(1, 1, System.Drawing.Imaging.PixelFormat.Format32bppRgb);
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Graphics g = Graphics.FromImage(bmp);
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SizeF s = g.MeasureString(Text, font);
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return s;
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}
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#endregion
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#region 开始计时
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Timer time1 = new Timer();
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private int TimeNumber=0;
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public void StartTimeer()
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{
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TimeNumber = this.TimeOut;
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time1.Interval = this.Interval * 1000;
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time1.Tick += time1_Tick;
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time1.Enabled = true;
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}
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void time1_Tick(object sender, EventArgs e)
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{
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if (ShowDateTime == true)
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{
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this.Text = DateTime.Now.ToString(DateTimeFormat);
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}
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else
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{
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if (this.TimeNumber == 0)
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{
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StopTimeer();
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TimeNumber = this.TimeOut;
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if (this.TimeTick != null) this.TimeTick(this);
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return;
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}
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this.Text = TimeNumber.ToString();
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TimeNumber--;
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}
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this.Refresh();
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}
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#endregion
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#region 停止计时
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public void StopTimeer()
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{
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time1.Tick -= time1_Tick;
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time1.Enabled = false;
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}
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#endregion
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#region 刷新
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public new void Refresh()
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{
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Bitmap bmp = null;
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if (BackgroundImage == null)
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{
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bmp = new Bitmap(this.Bounds.Width, this.Bounds.Height);
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}
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else
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{
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bmp = (Bitmap)BackgroundImage.Clone();
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}
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//G1 = this.CreateGraphics();
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G2 = Graphics.FromImage(bmp);
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//hdc1 = G1.GetHdc();
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//hdc2 = G2.GetHdc();
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if (BackgroundImage == null) G2.Clear(this.BackColor);
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Brush backBrush = new SolidBrush(this.ForeColor);
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//if (this.Border > 0) g.DrawRectangle(new Pen(BorderColor, this.Border), this.Bounds);
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//if (string.IsNullOrEmpty(this.Text) == false) g.DrawString(this.Text, this.Font, backBrush, new RectangleF(0, 0, this.Bounds.Width, this.Bounds.Height), TextAlign);
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if (string.IsNullOrEmpty(this.Text) == false)
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{
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G2.DrawString(this.Text, this.Font, backBrush, new RectangleF(0, 0, this.Width, this.Height), this.TextAlign);
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//if (TextAlign.Alignment == StringAlignment.Near)
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//{
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// G2.DrawString(this.Text, this.Font, backBrush, 0, 0);
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//}
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//if (TextAlign.Alignment == StringAlignment.Center)
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//{
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// float TextWidth = MeasureString(this.Text, this.Font).Width;
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// float x = (this.Width - TextWidth) / 2;
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// G2.DrawString(this.Text, this.Font, backBrush, x, 0);
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//}
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//if (TextAlign.Alignment == StringAlignment.Far)
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//{
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// float TextWidth = MeasureString(this.Text + "AA", this.Font).Width;
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// float x = (this.Width - TextWidth);
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// G2.DrawString(this.Text, this.Font, backBrush, x, 0);
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//}
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}
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backBrush.Dispose();
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//SystemInfo.BitBlt(hdc1, 0, 0, Width, Height, hdc2, 0, 0, SRCCOPY);
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//G1.ReleaseHdc(hdc1);
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//G2.ReleaseHdc(hdc2);
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//G1.Dispose();
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//G2.Dispose();
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//bmp.Dispose();
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if (pictureBox1.Image != null) pictureBox1.Image.Dispose();
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pictureBox1.Image = bmp;
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}
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#endregion
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#region 新增文本行
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public void AddRowText(string Text)
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{
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if (this.ScrollText.Available == this.MaxRowNumber)
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{
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this.ScrollText.CheckOut();
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}
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this.ScrollText.CheckIn(Text);
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string ss = "";
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for (int i = 0; i < this.ScrollText.Available; i++)
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{
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ss+=this.ScrollText.Peek()+ "\n";
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}
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ss = ss.Substring(0, ss.Length - 1);
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this.Text = ss;
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}
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#endregion
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#region 清除文本
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public void ClearRowText()
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{
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this.ScrollText.Clear();
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this.Text = "";
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}
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#endregion
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#region 移除滚动文字
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public void Remove(string item)
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{
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this.ScrollText.Remove(item);
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if (this.Text == item) this.Text = "";
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if (ScrollText.Available == 0)
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{
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this.Text = this.NullText;
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}
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else
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{
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this.Text = this.ScrollText.CheckOut();
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}
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if (this.MoveDirection == "Left")
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{
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this.ScrollLeft = this.Width;
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}
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if (this.MoveDirection == "Right")
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{
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this.ScrollLeft = 0;
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}
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if (this.MoveDirection == "Top")
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{
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this.ScrollTop = this.Height;
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}
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if (this.MoveDirection == "Bottom")
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{
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this.ScrollTop = 0;
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}
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InitScrollTextSize();
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}
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#endregion
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#region 初始化文字大小
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public void InitScrollTextSize()
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{
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this.ScrollTextWidth =Convert.ToInt32(MeasureString(this.Text, this.Font).Width);
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}
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#endregion
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#region 隐藏背景控件
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public void VisiblePictureBox()
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{
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pictureBox1.Visible = false;
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}
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#endregion
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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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}
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}
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}
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