using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Windows.Forms;
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using System.Drawing.Drawing2D;
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using System.Drawing;
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using System.ComponentModel;
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using Timer = System.Windows.Forms.Timer;
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namespace HotelPms.Share.Windows.Component
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{
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public class AntLabel : Label
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{
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private int m_BeginX = 0;
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private Timer timer1;
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private System.ComponentModel.IContainer components;
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private StringFormat sf = null;
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private bool m_AnimationEnabled = false;
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public bool AnimationEnabled
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{
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get { return m_AnimationEnabled; }
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set
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{
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m_AnimationEnabled = value;
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timer1.Enabled = m_AnimationEnabled;
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this.Invalidate();
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}
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}
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private int m_Interval = 300;
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public int Interval
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{
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get { return m_Interval; }
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set
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{
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m_Interval = value;
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if (timer1 != null)
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{
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timer1.Interval = m_Interval;
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this.Invalidate();
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}
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}
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}
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public AntLabel()
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{
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InitializeComponent();
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sf = new StringFormat();
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sf.Alignment = StringAlignment.Center;
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sf.LineAlignment = StringAlignment.Center;
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timer1.Enabled = false;
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}
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private LinearGradientMode m_GradientMode = LinearGradientMode.Vertical;
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[Description("EndBackColor"), Category("CTextBoxArray動作")]
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public LinearGradientMode GradientMode
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{
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get { return m_GradientMode; }
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set { m_GradientMode = value; this.Invalidate(); }
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}
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private Color m_EndBackColor = Color.FromArgb(120, 150, 150);
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[Description("EndBackColor"), Category("CTextBoxArray動作")]
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public Color EndBackColor
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{
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get { return m_EndBackColor; }
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set { m_EndBackColor = value; this.Invalidate(); }
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}
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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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int offset = 3;
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Rectangle r = new Rectangle(offset, offset, this.ClientRectangle.Width - offset, this.ClientRectangle.Height - offset);
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if (m_AnimationEnabled)
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{
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using (LinearGradientBrush lgb = new LinearGradientBrush(new Rectangle(m_BeginX, 0, this.Width, this.Height), Color.White, Color.Gainsboro, LinearGradientMode.Horizontal))
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{
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Color[] colors = new Color[]
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{
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Color.FromArgb(255, 0, 0),
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Color.FromArgb(255, 0, 0),
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Color.FromArgb(255, 128, 0),
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Color.FromArgb(255, 255, 0),
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Color.FromArgb(0, 255, 0),
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Color.FromArgb(0, 255, 128),
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Color.FromArgb(0, 255, 255),
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Color.FromArgb(0, 128, 255),
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Color.FromArgb(0, 0, 255),
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Color.FromArgb(0, 0, 255),
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};
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int num_colors = colors.Length;
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float[] blend_positions = new float[num_colors];
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for (int i = 0; i < num_colors; i++)
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{
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blend_positions[i] = i / (num_colors - 1f);
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}
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ColorBlend color_blend = new ColorBlend();
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color_blend.Colors = colors;
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color_blend.Positions = blend_positions;
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lgb.InterpolationColors = color_blend;
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//e.Graphics.Clear(this.BackColor);
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using (LinearGradientBrush brush = new LinearGradientBrush(this.ClientRectangle, m_EndBackColor, BackColor, m_GradientMode))
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{
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brush.SetSigmaBellShape(0.4f, 0.45f); //创建基于钟形曲线的渐变过渡过程。
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e.Graphics.FillRectangle(brush, this.ClientRectangle);
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}
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// Draw the string again.
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e.Graphics.DrawString(this.Text, this.Font, lgb, r, sf);
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}
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}
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else
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{
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using (Brush defBrush = new SolidBrush(this.ForeColor))
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{
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//e.Graphics.Clear(this.BackColor);
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using (LinearGradientBrush brush = new LinearGradientBrush(this.ClientRectangle, m_EndBackColor, BackColor, m_GradientMode))
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{
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brush.SetSigmaBellShape(0.4f, 0.45f); //创建基于钟形曲线的渐变过渡过程。
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e.Graphics.FillRectangle(brush, this.ClientRectangle);
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}
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e.Graphics.DrawString(this.Text, this.Font, defBrush, r, sf);
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}
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}
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}
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private void InitializeComponent()
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{
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this.components = new System.ComponentModel.Container();
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this.timer1 = new System.Windows.Forms.Timer(this.components);
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this.SuspendLayout();
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//
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// timer1
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//
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this.timer1.Interval = 1000;
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this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
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this.ResumeLayout(false);
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}
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private void timer1_Tick(object sender, EventArgs e)
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{
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try
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{
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timer1.Enabled = false;
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m_BeginX += 5;
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if (m_BeginX > this.Width) { m_BeginX = 0; }
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this.Invalidate();
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}
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catch { }
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finally
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{
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timer1.Enabled = true;
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}
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}
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}
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}
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