60 lines
1.4 KiB
C#
60 lines
1.4 KiB
C#
|
using System;
|
|||
|
|
using System.Collections.Generic;
|
|||
|
|
using System.ComponentModel;
|
|||
|
|
using System.Data;
|
|||
|
|
using System.Drawing;
|
|||
|
|
using System.Text;
|
|||
|
|
using System.Windows.Forms;
|
|||
|
|
using System.Drawing.Imaging;
|
|||
|
|
|
|||
|
|
namespace PDADemo
|
|||
|
|
{
|
|||
|
|
public partial class PictureControl : Control
|
|||
|
|
{
|
|||
|
|
private int imageIndex = 0;
|
|||
|
|
|
|||
|
|
public int ImageIndex
|
|||
|
|
{
|
|||
|
|
get { return imageIndex; }
|
|||
|
|
set
|
|||
|
|
{
|
|||
|
|
imageIndex = value;
|
|||
|
|
this.Invalidate();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private Image backgroundImage;
|
|||
|
|
|
|||
|
|
public Image BackgroundImage
|
|||
|
|
{
|
|||
|
|
get { return backgroundImage; }
|
|||
|
|
set { backgroundImage = value; }
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public PictureControl()
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
protected override void OnPaint(PaintEventArgs pe)
|
|||
|
|
{
|
|||
|
|
// TODO: 在此处添加自定义绘制代码
|
|||
|
|
|
|||
|
|
SolidBrush brush = new SolidBrush(SystemColors.ActiveCaption);
|
|||
|
|
pe.Graphics.FillRectangle(brush, this.ClientRectangle);
|
|||
|
|
brush.Dispose();
|
|||
|
|
|
|||
|
|
if (this.BackgroundImage != null)
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
ImageAttributes attr = new ImageAttributes();
|
|||
|
|
attr.SetColorKey(Color.Magenta, Color.Magenta);
|
|||
|
|
|
|||
|
|
pe.Graphics.DrawImage(this.backgroundImage, this.ClientRectangle, imageIndex * 16, 0, 16, 16, GraphicsUnit.Pixel, attr);
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
// 调用基类 OnPaint
|
|||
|
|
base.OnPaint(pe);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|