/*
*
* /// <summary>
* /// 格式化图片
* /// </summary>
* /// <param name="originalImagePath">源图物理路径</param>
* /// <param name="formatImagePath">新图物理路径</param>
* /// <param name="formatWidth">格式化宽度</param>
* /// <param name="formatHeight">格式化高度</param>
* /// <param name="cut">是否裁剪，true:裁剪、false:不裁剪</param>
* /// <param name="picFormat">图片输出格式</param>
* public static void FormatPicture(string originalPath, string formatPath, int formatWidth, int formatHeight, bool cut, PictureFormat picFormat)
* {
* System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalPath);
*
* int towidth = formatWidth;
* int toheight = formatHeight;
*
* int x = 0;
* int y = 0;
* int ow = originalImage.Width;
* int oh = originalImage.Height;
*
* if (cut)
* {
* //指定高宽裁减（不变形）
* if ((double)originalImage.Width / (double)originalImage.Height > (double)towidth / (double)toheight)
* {
* oh = originalImage.Height;
* ow = originalImage.Height * towidth / toheight;
* y = 0;
* x = (originalImage.Width - ow) / 2;
* }
* else
* {
* ow = originalImage.Width;
* oh = originalImage.Width * formatHeight / towidth;
* x = 0;
* y = (originalImage.Height - oh) / 2;
* }
* }
* else
* {
* //默认指定高度宽度，失真缩放
*
* //指定宽度缩放
* if (formatHeight <= 0)
* {
* formatWidth = originalImage.Width * formatHeight / originalImage.Height;
* }
*
* //指定高度缩放
* else if (formatWidth <= 0)
* {
* formatHeight = originalImage.Height * formatWidth / originalImage.Width;
* }
* }
*
* //新建一个bmp图片
* System.Drawing.Image image = new System.Drawing.Bitmap(formatWidth, formatHeight);
* //新建一个画板
* System.Drawing.Graphics graphics = System.Drawing.Graphics.FromImage(image);
* //设置高质量插值法
* graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;
* //设置高质量,低速度呈现平滑程度
* graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
* //清空画布并以透明背景色填充
* graphics.Clear(System.Drawing.Color.Transparent);
* //在指定位置并且按指定大小绘制原图片的指定部分
* graphics.DrawImage(
* originalImage,
* new System.Drawing.Rectangle(0, 0, formatWidth, formatHeight),
* new System.Drawing.Rectangle(x, y, ow, oh),
* System.Drawing.GraphicsUnit.Pixel
* );
* originalImage.Dispose();
*
* System.Drawing.Imaging.ImageFormat imageFormat = GetImageFormat(picFormat);
*
* //以指定格式保存图片
* try
* {
* image.Save(formatPath, imageFormat);
* }
* catch (Exception ex)
* {
* throw ex;
* }
* finally
* {
* //originalImage.Dispose();
* image.Dispose();
* graphics.Dispose();
* }
* }
*
*/
/// <summary>
/// 格式化图片
/// </summary>
/// <param name="originalImagePath">源图物理路径</param>
/// <param name="formatImagePath">新图物理路径</param>
/// <param name="formatWidth">格式化宽度</param>
/// <param name="formatHeight">格式化高度</param>
/// <param name="cut">是否裁剪，true:裁剪、false:不裁剪</param>
/// <param name="picFormat">图片输出格式</param>
public static void FormatPicture(string originalPath, string formatPath, int formatWidth, int formatHeight, bool cut, PictureFormat picFormat)
{
Byte[] fileBinary = File.ReadAllBytes(originalPath);
Byte[] formatBinary = FormatPicture(fileBinary, formatWidth, formatHeight, cut, picFormat);
if (formatBinary != null)
{
FileConvert.SaveFile(formatPath, formatBinary);
}
}
/// <summary>
/// 打包压缩文件并返回二进制
/// </summary>
/// <param name="kvList"></param>
/// <param name="tempFolder"></param>
/// <param name="path"></param>
/// <returns></returns>
public byte[] ZipFileBinarys(IList <KVPair> fileList, string tempFolder)
{
string sourceDirectoryName = tempFolder + Guid.NewGuid().ToString();
string destinationArchiveFileName = sourceDirectoryName + ".zip";
if (!Directory.Exists(sourceDirectoryName))
{
Directory.CreateDirectory(sourceDirectoryName);
}
foreach (KVPair kv in fileList)
{
if (kv.Value == null)
{
continue;
}
byte[] byteArray;
if (kv.Value.GetType().Equals(typeof(byte[])))
{
byteArray = (byte[])kv.Value;
}
else
{
byteArray = System.Text.Encoding.UTF8.GetBytes(kv.Value.ToString());
}
FileConvert.SaveFile(sourceDirectoryName + "/" + kv.Key, byteArray);
}
ZipFile.CreateFromDirectory(sourceDirectoryName, destinationArchiveFileName);
FileStream stream = new FileStream(destinationArchiveFileName, FileMode.Open);
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
stream.Close();
return(buffer);
}
