处理GIF部分
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging; namespace AnimatePaint
{
/// <summary>
/// 处理gif动画
/// </summary>
public class AnimateImage
{
private Image _image;
private FrameDimension _frameDimension;
private bool _bCanAnimate;
private int _iFrameCount = 1, _iCurrentFrame = 0; public event EventHandler OnFrameChanged;
public Image Image { get { return _image;} }
public bool CanAnimate { get { return _bCanAnimate;} }
public int FrameCount { get { return _iFrameCount; } }
public int CurrentFrame { get { return _iCurrentFrame; } } private void FrameChanged(object sender, EventArgs e)
{
_iCurrentFrame = _iCurrentFrame + 1 >= _iFrameCount ? 0 : _iCurrentFrame + 1;
lock (_image)
{
_image.SelectActiveFrame(_frameDimension, _iCurrentFrame);
if (OnFrameChanged != null)
{
OnFrameChanged(sender, e);
}
}
} public AnimateImage(Image img)
{
_image = img;
lock (_image)
{
_bCanAnimate = ImageAnimator.CanAnimate(_image);
if (_bCanAnimate)
{
Guid[] guids = _image.FrameDimensionsList;
_frameDimension = new FrameDimension(guids[0]);
_iFrameCount = _image.GetFrameCount(_frameDimension);
}
}
} public void Play()
{
if (_bCanAnimate)
{
lock (_image)
{
ImageAnimator.Animate(_image, new EventHandler(FrameChanged));
}
}
} public void Stop()
{
if (_bCanAnimate)
{
lock (_image)
{
ImageAnimator.StopAnimate(_image, new EventHandler(FrameChanged));
}
}
} public void Reset()
{
if (_bCanAnimate)
{
ImageAnimator.StopAnimate(_image, new EventHandler(FrameChanged));
lock (_image)
{
_image.SelectActiveFrame(_frameDimension, 0);
_iCurrentFrame = 0;
}
}
} }
}
自定义控件部分
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Windows.Forms; namespace AnimatePicture
{
public partial class AnimatePictureBox : PictureBox
{
private AnimatePaint.AnimateImage _animateimg; private void image_OnFrameChanged(object sender, EventArgs e)
{
Invalidate();
} public AnimatePictureBox()
{
SetStyle(ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint | ControlStyles.UserPaint, true);
} public void LoadGIF(string strFileName)
{
_animateimg = new AnimatePaint.AnimateImage(Image.FromFile(strFileName));
_animateimg.OnFrameChanged += new EventHandler(image_OnFrameChanged);
_animateimg.Play();
} protected override void OnPaint(PaintEventArgs pe)
{
base.OnPaint(pe);
if (_animateimg != null)
if (_animateimg.Image != null)
lock (_animateimg.Image)
{
pe.Graphics.DrawImage(_animateimg.Image, new Point(0, 0));
}
}
}
}