using System;
|
using System.Drawing;
|
using System.Windows.Forms;
|
|
namespace IStation.WinFrmUI
|
{
|
/// <summary>
|
/// 图片按钮
|
/// </summary>
|
public partial class ImageButton : PictureBox
|
{
|
#region constructor
|
|
public ImageButton()
|
{
|
InitializeComponent();
|
_toolTip = new ToolTip(components);
|
SizeMode = PictureBoxSizeMode.AutoSize;
|
MouseEnter += ImageButton_MouseEnter;
|
MouseLeave += ImageButton_MouseLeave;
|
MouseDown += ImageButton_MouseDown;
|
MouseUp += ImageButton_MouseUp;
|
}
|
|
#endregion
|
|
#region property
|
|
public new Image Image
|
{
|
get { return base.Image; }
|
set
|
{
|
base.Image = value;
|
_imageNormal = value;
|
}
|
}
|
|
private Image _imageNormal;
|
|
public Image ImageNormal
|
{
|
get { return _imageNormal; }
|
set
|
{
|
_imageNormal = value;
|
base.Image = value;
|
}
|
}
|
|
private Image _imageOver;
|
|
public Image ImageOver
|
{
|
get { return _imageOver; }
|
set { _imageOver = value; }
|
}
|
|
private Image _imageDown;
|
|
public Image ImageDown
|
{
|
get { return _imageDown; }
|
set { _imageDown = value; }
|
}
|
|
public string ToolTip
|
{
|
get { return _toolTip == null ? "" : _toolTip.GetToolTip(this); }
|
set
|
{
|
if (_toolTip != null) _toolTip.SetToolTip(this, value);
|
}
|
}
|
|
#endregion
|
|
#region field
|
|
private readonly ToolTip _toolTip;
|
|
/// <summary>
|
/// 鼠标已经leave标识
|
/// </summary>
|
private bool _mouseLeft;
|
|
#endregion
|
|
protected void ImageButton_MouseEnter(object sender, EventArgs e)
|
{
|
_mouseLeft = false;
|
if (_imageOver != null) base.Image = _imageOver;
|
}
|
|
protected void ImageButton_MouseLeave(object sender, EventArgs e)
|
{
|
_mouseLeft = true;
|
if (_imageNormal != null) base.Image = _imageNormal;
|
}
|
|
protected void ImageButton_MouseDown(object sender, MouseEventArgs e)
|
{
|
if (_imageDown != null) base.Image = _imageDown;
|
}
|
|
protected void ImageButton_MouseUp(object sender, MouseEventArgs e)
|
{
|
if (!_mouseLeft && _imageOver != null) base.Image = _imageOver;
|
}
|
|
protected override void OnPaint(PaintEventArgs pe)
|
{
|
base.OnPaint(pe);
|
}
|
}
|
}
|
