SurLabel.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
namespace Asa.Face
{
/// <summary>
/// 标签控件
/// </summary>
[DefaultProperty("Text")]
[DefaultEvent("Click")]
public partial class SurLabel : BaseCtl
{
private bool _foreCus = false;
private RectangleF _textRect = new RectangleF();
private HorizontalAlignment _textAlign = HorizontalAlignment.Left;
/// <summary>
/// 标签控件
/// </summary>
public SurLabel()
{
InitializeComponent();
}
//==========属性==========
/// <summary>
/// 显示的文本的对齐方式
/// </summary>
[Browsable(true), Category(""), Description("显示的文本的对齐方式"), DefaultValue(HorizontalAlignment.Left)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public HorizontalAlignment TextAlign
{
set
{
_textAlign = value;
CalcSize();
Refresh();
}
get
{
return _textAlign;
}
}
/// <summary>
/// 前景色是否自定义，通过ForeColor指定
/// </summary>
[Browsable(true), Category(""), Description("前景色是否自定义，通过ForeColor指定"), DefaultValue(false)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public bool ForeColorCustom
{
set
{
_foreCus = value;
Refresh();
}
get
{
return _foreCus;
}
}
//==========私有==========
/// <summary>
/// 计算位置大小
/// </summary>
protected override void CalcSize()
{
base.CalcSize();
SizeF sf = CreateGraphics().MeasureString(Text, Font, Width);
switch (TextAlign)
{
case HorizontalAlignment.Left:
_textRect = new RectangleF(BorderWidth, (Height - sf.Height) / 2f, sf.Width, sf.Height);
break;
case HorizontalAlignment.Center:
_textRect = new RectangleF((Width - sf.Width) / 2f, (Height - sf.Height) / 2f, sf.Width, sf.Height);
break;
case HorizontalAlignment.Right:
_textRect = new RectangleF(Width - BorderWidth - sf.Width, (Height - sf.Height) / 2f, sf.Width, sf.Height);
break;
}
}
private void SurLabel_Paint(object sender, PaintEventArgs e)
{
BufferedGraphicsContext current = BufferedGraphicsManager.Current;
BufferedGraphics bg = current.Allocate(e.Graphics, e.ClipRectangle);
Graphics g = bg.Graphics;
g.SmoothingMode = SmoothingMode.HighQuality;
g.CompositingQuality = CompositingQuality.HighQuality;
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.Clear(Common.BACK_COLOR); //背景
if (Inside && Enabled)
{
if (BorderWidth > 0)
g.DrawRectangle(BorderInsidePen, BorderRect);
}
else
{
if (BorderWidth > 0)
g.DrawRectangle(BorderOutsidePen, BorderRect);
}
if (Enabled)
g.DrawString(Text, Font, _foreCus ? new SolidBrush(ForeColor) : Common.FORE_BRUSH, _textRect);
else
g.DrawString(Text, Font, Common.BORDER_BRUSH, _textRect);
bg.Render();
bg.Dispose();
}
}
}