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【CSharp】 wpf 图片操作类

作者:蓝言觅ぷ雨 / 发布于2012/7/9/ 546

ImageBrush BitmapImage

<div>/// <summary>
 /// 解析字节数组成图片
 /// </summary>
 /// <param name="byteArray"></param>
 /// <returns></returns>
 public static BitmapImage ByteArrayToBitmapImage(byte[] byteArray)
 {
 BitmapImage bmp = null;
 try
 {
 bmp = new BitmapImage();
 bmp.BeginInit();
 bmp.StreamSource = new MemoryStream(byteArray);
 bmp.EndInit();
 }
 catch
 {
 bmp = null;
 }
 return bmp;
 }
<div>
 /// <summary>
 /// 图片数据解析成字节流数组(用于存储到数据库)
 /// </summary>
 /// <param name="bmp"></param>
 /// <returns></returns>
 public static byte[] BitmapImageToByteArray(BitmapImage bmp)
 {
 byte[] byteArray = null;
 try
 {
 Stream sMarket = bmp.StreamSource;
 if (sMarket != null && sMarket.Length > 0)
 {
 sMarket.Position = 0;
 using (BinaryReader br = new BinaryReader(sMarket))
 {
 byteArray = br.ReadBytes((int)sMarket.Length);
 }
 }
 }
 catch
 {
 }
 return byteArray;
 }
<div> /// <summary>
 /// 根据图片的路径解析成图片资源
 /// </summary>
 /// <param name="filePath"></param>
 /// <returns></returns>
 public static byte[] BitmapImageToByteArray(String filePath)
 {</div>
<div> byte[] byteArray = null ;
 if(File.Exists(filePath))
 byteArray = File.ReadAllBytes(filePath);
 return byteArray;
 }
<div> /// <summary>
 /// 根据图片的相对路径 返回 BitmapImage对象的实例化
 /// </summary>
 /// <param name="imgPath">图片的相对路径(如:@"/images/star.png")</param>
 /// <returns></returns>
 public static BitmapImage GetBitmapImage(string imgPath)
 {
 try
 {
 if (!imgPath.StartsWith("/"))
 {
 imgPath = "/" + imgPath;
 }
 return new BitmapImage(new Uri("Pack://application:,,," + imgPath));
 }
 catch
 {
 return EmptyImageSource;
 }
 }
<div> /// <summary>
 /// 根据图片的相对路径 获取Image对象
 /// </summary>
 /// <param name="imgPath">图片的相对路径(如:@"/images/star.png")</param>
 /// <returns></returns>
 public static Image GetImage(string imgPath)
 {
 if (File.Exists(imgPath))
 {
 Image im = new Image();
 im.Source = GetBitmapImage(imgPath);
 return im;
 }
 else
 return null;
 }
<div> /// <summary>
 /// 根据图片的相对路径 获取ImageBrush对象 (此对象资源可以直接用于绑定控件的Background属性)
 /// </summary>
 /// <param name="imgPath">图片的相对路径(如:@"/images/star.png")</param>
 /// <returns></returns>
 public static ImageBrush GetImageBrush(string imgPath)
 {
 if (File.Exists(imgPath))
 {
 ImageBrush ib = new ImageBrush();
 ib.ImageSource = GetBitmapImage(imgPath);
 return ib;
 }
 else
 return null;
 }

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　wpf图片操作类　

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