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.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace WccPackTool.Controls;
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public class ConsoleWriteLine : Control
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{
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private MessageCollection items;
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#region 公有属性
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[Category("WenAuto"), Description("是否显示序号"), DefaultValue(true)]
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public bool ShowLine { get; set; } = true;
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#endregion
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public ConsoleWriteLine()
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{
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base.SetStyle(ControlStyles.UserPaint | ControlStyles.DoubleBuffer | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor, true);
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base.UpdateStyles();
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this.Controls.Add(vScrollBar);
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vScrollBar.ValueChanged += VScrollBar_ValueChanged;
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this.MouseWheel += ConsoleWriteLine_MouseWheel;
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this.MouseEnter += ConsoleWriteLine_MouseEnter;
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}
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private void ConsoleWriteLine_MouseEnter(object sender, EventArgs e)
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{
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this.Select();
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}
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private void ConsoleWriteLine_MouseWheel(object sender, MouseEventArgs e)
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{
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if (e.Delta < 0)
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{
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var v = vScrollBar.Value + 1;
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if (vScrollBar.Maximum >= v)
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vScrollBar.Value++;
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}
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else
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{
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var v = vScrollBar.Value - 1;
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if (vScrollBar.Minimum <= v)
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vScrollBar.Value--;
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}
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}
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private void VScrollBar_ValueChanged(object sender, EventArgs e)
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{
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this.Invalidate(true);
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}
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private void SetVS()
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{
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var count = (int)Math.Floor((float)this.Height / 20);
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if (this.Items.Count >= count)
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{
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this.vScrollBar.Maximum = this.Items.Count - count;
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this.vScrollBar.Value = this.Items.Count - count;
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}
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else
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{
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this.vScrollBar.Maximum = 0;
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this.vScrollBar.Value = 0;
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}
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}
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private VScrollBar vScrollBar = new VScrollBar() { Dock = DockStyle.Right, Maximum = 0, Value = 0, LargeChange = 1 };
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public MessageCollection Items => items ??= new MessageCollection(this);
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public static StringFormat StringConters { get; set; }
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= new StringFormat(StringFormatFlags.NoClip | StringFormatFlags.NoWrap)
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{
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LineAlignment = StringAlignment.Center,
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Trimming = StringTrimming.EllipsisCharacter
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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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Graphics g = e.Graphics;
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g.SmoothingMode = SmoothingMode.AntiAlias; //使绘图质量最高，即消除锯齿
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g.InterpolationMode = InterpolationMode.HighQualityBicubic;
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g.CompositingQuality = CompositingQuality.HighQuality;
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g.DrawRectangle(Pens.Black, new Rectangle(0, 0, this.Width - vScrollBar.Width - 1, this.Height - 1));
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var count = (int)Math.Ceiling((float)this.Height / 20);
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var cuowei = count * 20 - this.Height;
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if (this.vScrollBar.Value == 0)
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{
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cuowei = 0;
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}
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if (count > this.Items.Count)
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{
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count = this.Items.Count;
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}
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for (int i = 0; i < count; i++)
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{
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var line = (this.vScrollBar.Value > 0 ? vScrollBar.Value - 1 : 0) + i;
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var item = this.Items[line];
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var rec = new RectangleF(3, i * 20 - cuowei, this.Width - vScrollBar.Width - 6, 20);
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var text = $"{(ShowLine ? line + 1 + ". " : "")}{item.DateTime:HH:mm:ss} {item.Text}";
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g.DrawString(text, Font, new SolidBrush(item.Color), rec, StringConters);
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}
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}
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public class MessageCollection : List<MessageItem>
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{
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private ConsoleWriteLine owner;
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public MessageCollection(ConsoleWriteLine owner)
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{
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this.owner = owner;
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}
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public void Add(string text) => this.Add(text, Color.Black);
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public void Add(string text, Color color)
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{
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this.Add(new MessageItem(text, color));
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owner.Invalidate(true);
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owner.SetVS();
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}
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public new void Clear()
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{
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base.Clear();
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owner.Invalidate(true);
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owner.SetVS();
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}
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}
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public class MessageItem
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{
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public MessageItem(string text, Color color)
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{
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Text = text;
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Color = color;
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}
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public DateTime DateTime { get; set; } = DateTime.Now;
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public string Text { get; set; } = "";
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public Color Color { get; set; } = Color.Black;
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}
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}
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