/// <summary>
/// 创建缩图文件
/// </summary>
/// <param name="vpath">topimg的路径</param>
/// <param name="thumb">压图字段的值</param>
/// <returns>处理后的图片路径</returns>
public static string Thumb_Compress(string vpath, string thumb, int destWidth, int destHeight)
{
if (string.IsNullOrEmpty(vpath))
{
return(thumb);
}
if (!File.Exists(function.VToP(vpath)))
{
return(thumb);
}
if (!SafeSC.IsImage(vpath))
{
return(thumb);
}
//----------------------------
ImgHelper imghelp = new ImgHelper();
//为空或不存在,则重新生成缩图名称
if (string.IsNullOrEmpty(thumb) || !File.Exists(function.VToP(thumb)))
{
string fname = Path.GetFileNameWithoutExtension(vpath);
string ext = Path.GetExtension(vpath);
string thumb_fname = fname + ".thumb" + ext;
thumb = vpath.Substring(0, vpath.LastIndexOf("/") + 1) + thumb_fname;
}
else
{
return(thumb);
}
//如图片小于设定,则也不压缩,直接返回其路径即可
//int destWidth = SiteConfig.ThumbsConfig.ThumbsWidth;
//int destHeight = SiteConfig.ThumbsConfig.ThumbsHeight;
//生成缩图保存
Image img = ImgHelper.ReadImgToMS(vpath);
if ((destWidth + destHeight) < 1)
{
ImgHelper.SaveImage(thumb, img);
}
else if (img.Width <= destWidth && img.Height <= destHeight)
{
ImgHelper.SaveImage(thumb, img);
}
else
{
Bitmap bmp = imghelp.ZoomImg(vpath, destHeight, destWidth);
imghelp.SaveImg(thumb, bmp);
}
return(thumb);
}
/*---------------从配置文件中增加水印--------------------*/
/// <summary>
/// 读取配置文件,增加水印
/// </summary>
/// <vpath>需水印图片虚拟路径</vpath>
/// <returns>水印后的路径</returns>
public static string AddWater(string svpath)
{
if (!SafeSC.IsImage(svpath) || !WaterModuleConfig.WaterConfig.IsUsed)
{
return(svpath);
}
string sppath = function.VToP(svpath);
string vdir = Path.GetDirectoryName(sppath) + "\\";
string fname = "wd_" + Path.GetFileName(svpath);
string savePath = function.PToV(vdir + fname);
System.Drawing.Image img = Image.FromFile(sppath);
img = AddWater(img);
Bitmap bmp = new Bitmap(img);
savePath = new ImgHelper().SaveImg(savePath, bmp);
img.Dispose(); bmp.Dispose();
return(savePath);
}
/*---------------从配置文件中增加水印--------------------*/
/// <summary>
/// 读取配置文件,增加水印
/// </summary>
/// <vpath>需水印图片虚拟路径</vpath>
/// <returns>水印后的路径</returns>
public static string AddWater(string svpath)
{
if (!SafeSC.IsImage(svpath) || !WaterModuleConfig.WaterConfig.IsUsed)
{
return(svpath);
}
string[] exps = { ".jpg", ".bmp", ".png" };
if (!exps.Contains(Path.GetExtension(svpath).ToLower()))
{
return(svpath);
}
string sppath = function.VToP(svpath);
string vdir = Path.GetDirectoryName(sppath) + "\\";
string fname = "wd_" + Path.GetFileName(svpath);
string savePath = function.PToV(vdir + fname);
Image img = Image.FromFile(sppath);
img = AddWater(img);
Bitmap bmp = new Bitmap(img);
savePath = new ImgHelper().SaveImg(savePath, bmp);
img.Dispose(); bmp.Dispose();
return(savePath);
}