public ActionResult Thumb(string size, ThumbnailMethod mode, int q, string fn, WaterMarkingPosition?position)
{
Response.Cache.SetOmitVaryStar(true);
var filePath = StringUtility.XBase64Decode(fn);
var arrSize = size.ToLower().Split('x');
var dirRoot = AttachmentSvc.GetFullPath($@"thumb\{mode}-{size}-{position}");
var filePathAbs = Path.Combine(dirRoot, filePath);
var dirPath = Path.GetDirectoryName(filePathAbs);
if (string.IsNullOrEmpty(dirPath))
{
return(HttpNotFound("-File Not Found-"));
}
if (!Directory.Exists(dirPath))
{
Directory.CreateDirectory(dirPath);
}
var fileExt = Path.GetExtension(filePathAbs);
if (!System.IO.File.Exists(filePathAbs))
{
var iThumb = new ImgThumbUtillity()
{
QualityLevel = q
};
var filePathSrc = AttachmentSvc.GetFullPath(filePath);
iThumb.MakeThumbnail(filePathSrc, filePathAbs, fileExt, StringUtility.ConvertToInt(arrSize[0]), StringUtility.ConvertToInt(arrSize[1]), mode, position, SysConfigRepository.WaterMarkingPath);
}
var fileContentType = AttachmentSvc.GetFileContentType(fileExt);
return(File(filePathAbs, fileContentType));
}
public breinImage GetThumbnailImage(int width, int height, ThumbnailMethod method)
{
breinImage image;
double imageRatio = (double)_image.Width / _image.Height;
double thumbRatio = (double)width / height;
if (method == ThumbnailMethod.Crop)
{
int imgWidth = width;
int imgHeight = height;
if (imageRatio < thumbRatio)
{
imgHeight = (_image.Height * width) / _image.Width;
}
else
{
imgWidth = (_image.Width * height) / _image.Height;
}
image = new breinImage(width, height);
DrawScaledImage(image._image, _image, (width - imgWidth) / 2, (height - imgHeight) / 2, imgWidth, imgHeight);
}
else if (method == ThumbnailMethod.Pad)
{
// Rewritten to fix issue #1. Thanks to Cosmin!
float hRatio = _image.Height / (float)height;
float wRatio = _image.Width / (float)width;
float newRatio = hRatio > wRatio ? hRatio : wRatio;
int imgHeight = (int)(_image.Height / newRatio);
int imgWidth = (int)(_image.Width / newRatio);
image = new breinImage(width, height, _backgroundColor);
DrawScaledImage(image._image, _image, (width - imgWidth) / 2, (height - imgHeight) / 2, imgWidth, imgHeight);
}
else // ThumbnailMethod.Fit
{
if (imageRatio < thumbRatio)
{
width = (_image.Width * height) / _image.Height;
}
else
{
height = (_image.Height * width) / _image.Width;
}
image = new breinImage(width, height);
DrawScaledImage(image._image, _image, 0, 0, width, height);
}
return(image);
}
// Constructor method
public WebpageThumbnail(string data, int browserWidth, int browserHeight, int thumbnailWidth, int thumbnailHeight, ThumbnailMethod method)
{
this.Method = method;
if (method == ThumbnailMethod.Url)
{
this.Url = data;
}
else if (method == ThumbnailMethod.Html)
{
this.Html = data;
}
this.BrowserWidth = browserWidth;
this.BrowserHeight = browserHeight;
this.Height = thumbnailHeight;
this.Width = thumbnailWidth;
}
public Thumbnail1(string data, int browserWidth, int browserHeight, int thumbnailWidth, int thumbnailHeight, ThumbnailMethod method)
{
this.Method = method;
if (method == ThumbnailMethod.Url)
{
this.Url = data;
}
else if (method == ThumbnailMethod.Html)
{
this.Html = data;
}
this.BrowserWidth = 1089; // ;// browserWidth;
this.BrowserHeight = 860; // browserHeight;
this.Height = 2552; // thumbnailHeight;
this.Width = 3302; // thumbnailWidth;
}
public KalikoImage GetThumbnailImage(int width, int height, ThumbnailMethod method)
{
ScalingBase scaleEngine;
switch (method)
{
case ThumbnailMethod.Fit:
scaleEngine = new FitScaling(width, height);
break;
case ThumbnailMethod.Pad:
scaleEngine = new PadScaling(width, height);
break;
default:
scaleEngine = new CropScaling(width, height);
break;
}
return(Scale(scaleEngine));
}
public KalikoImage GetThumbnailImage(int width, int height, ThumbnailMethod method) {
ScalingBase scaleEngine;
switch (method) {
case ThumbnailMethod.Fit:
scaleEngine = new FitScaling(width, height);
break;
case ThumbnailMethod.Pad:
scaleEngine = new PadScaling(width, height);
break;
default:
scaleEngine = new CropScaling(width, height);
break;
}
return Scale(scaleEngine);
}
public static string ThumbUrl(this UrlHelper urlHelper, string fn, string size, WaterMarkingPosition position, ThumbnailMethod mode = ThumbnailMethod.Crop, string defUrl = "")
{
if (string.IsNullOrEmpty(fn))
{
return(defUrl);
}
fn = StringUtility.XBase64Encode(fn);
var result = urlHelper.GenerateUrl("WaterThumbnail", "Thumb", "Utility", new { size, mode, fn, position });
return(GetImgSiteFile(result));
}
/// <summary>
/// 缩略图的截图模式是：当原图宽高比按照缩略图时缩放
/// </summary>
/// <param name="originalImagePath"></param>
/// <param name="thumbnailPath"></param>
/// <param name="extName"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="scale">Crop:取中间部分;Fit:按比例缩放，自动调整尺寸;Pad:按比例缩放，保持尺寸，不足部分填白</param>
/// <param name="position">水印位置</param>
/// <param name="waterMarkingPath">水印图片路劲</param>
public void MakeThumbnail(string originalImagePath, string thumbnailPath, string extName, int width, int height, ThumbnailMethod scale = ThumbnailMethod.Fit, WaterMarkingPosition?position = null, string waterMarkingPath = "")
{
if (!File.Exists(originalImagePath))
{
return;
}
var image = new KalikoImage(originalImagePath)
{
BackgroundColor = Color.White
};
var format = GetImageFormat(extName);
ScalingBase scalingBase = null;
switch (scale)
{
case ThumbnailMethod.Crop:
scalingBase = new CropScaling(width, height);
break;
case ThumbnailMethod.Fit:
scalingBase = new FitScaling(width, height);
break;
case ThumbnailMethod.Pad:
scalingBase = new PadScaling(width, height);
break;
default:
scalingBase = new CropScaling(width, height);
break;
}
var imageThumb = image.Scale(scalingBase);
AddWaterMarking(position, waterMarkingPath, imageThumb);
imageThumb.SaveImage(thumbnailPath, format);
image.Dispose();
imageThumb.Dispose();
}
public breinImage GetThumbnailImage(int width, int height, ThumbnailMethod method)
{
breinImage image;
double imageRatio = (double)_image.Width / _image.Height;
double thumbRatio = (double)width / height;
if(method == ThumbnailMethod.Crop ) {
int imgWidth = width;
int imgHeight = height;
if(imageRatio < thumbRatio) {
imgHeight = (_image.Height * width) / _image.Width;
}
else {
imgWidth = (_image.Width * height) / _image.Height;
}
image = new breinImage(width, height);
DrawScaledImage(image._image, _image, (width - imgWidth) / 2, (height - imgHeight) / 2, imgWidth, imgHeight);
}
else if(method == ThumbnailMethod.Pad) {
// Rewritten to fix issue #1. Thanks to Cosmin!
float hRatio = _image.Height / (float)height;
float wRatio = _image.Width / (float)width;
float newRatio = hRatio > wRatio ? hRatio : wRatio;
int imgHeight = (int)(_image.Height / newRatio);
int imgWidth = (int)(_image.Width / newRatio);
image = new breinImage(width, height, _backgroundColor);
DrawScaledImage(image._image, _image, (width - imgWidth) / 2, (height - imgHeight) / 2, imgWidth, imgHeight);
}
else { // ThumbnailMethod.Fit
if(imageRatio < thumbRatio) {
width = (_image.Width * height) / _image.Height;
}
else {
height = (_image.Height * width) / _image.Width;
}
image = new breinImage(width, height);
DrawScaledImage(image._image, _image, 0, 0, width, height);
}
return image;
}
