private ImageInfo ResizeImage(ImageSet set, int width, int height)
{
lock (set) {
ImageInfo info = new ImageInfo(set);
info.Width = width;
info.Height = height;
info.Date = DateTime.UtcNow;
info.ImageFormat = set.PrimaryImage.ImageFormat;
set.ResizedImages.Add(info);
using (System.Drawing.Bitmap bmp = (System.Drawing.Bitmap)System.Drawing.Bitmap.FromFile(set.PrimaryImage.Path))
using (System.Drawing.Bitmap newBmp = new System.Drawing.Bitmap(width, height))
using (System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(newBmp)) {
graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphic.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphic.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphic.DrawImage(bmp, 0, 0, width, height);
MemoryStream ms = new MemoryStream();
newBmp.Save(ms, info.ImageFormat);
using (var fs = ProtectedFileStream.OpenExclusiveWriter(info.Path)) {
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(ms.ToArray());
}
}
return(info);
}
}
public ImageSet GetImageSet(Guid id)
{
lock (this) {
ImageSet set = null;
lock (imageInfoCache) {
imageInfoCache.TryGetValue(id, out set);
}
return(set);
}
}
public List <ImageSize> AvailableSizes(Guid id)
{
ImageSet set = GetImageSet(id);
if (set != null)
{
return(set.ResizedImages.Select(_ => _.Size).Concat(new ImageSize[] { set.PrimaryImage.Size }).ToList());
}
else
{
return(null);
}
}
private ImageSet GetOrCreateImageSet(Guid id)
{
ImageSet imageSet;
lock (this) {
imageSet = GetImageSet(id);
if (imageSet == null)
{
imageSet = new ImageSet(this, id);
imageInfoCache[id] = imageSet;
}
}
return(imageSet);
}
private static void DeleteImageSet(ImageSet imageSet, bool includeResized)
{
try {
if (imageSet.PrimaryImage != null)
{
int retries = 0;
bool successful = false;
while (retries < 3 && !successful)
{
try
{
File.Delete(imageSet.PrimaryImage.Path);
successful = true;
}
catch (Exception e)
{
Logger.ReportException("Error attempting to delete image: " + imageSet.PrimaryImage.Path + ". Will retry...", e);
retries++;
}
}
}
if (includeResized)
{
foreach (var resized in imageSet.ResizedImages)
{
int retries = 0;
bool successful = false;
while (retries < 3 && !successful)
{
try
{
File.Delete(resized.Path);
successful = true;
}
catch (Exception e)
{
Logger.ReportException("Error attempting to delete image: " + resized.Path + ". Will retry...", e);
retries++;
}
}
}
}
} finally {
imageSet.ResizedImages = new List <ImageInfo>();
imageSet.PrimaryImage = null;
}
}
public string GetImagePath(Guid id, int width, int height)
{
ImageSet set = GetImageSet(id);
if (set != null && set.PrimaryImage != null)
{
lock (set) {
var image = set.ResizedImages.FirstOrDefault(info => info.Width == width && info.Height == height);
if (image != null)
{
return(image.Path);
}
else
{
return(ResizeImage(set, width, height).Path);
}
}
}
// no such image
return(null);
}
public ImageInfo(ImageSet parent)
{
this.Parent = parent;
}
private ImageInfo ResizeImage(ImageSet set, int width, int height)
{
lock (set) {
ImageInfo info = new ImageInfo(set);
info.Width = width;
info.Height = height;
info.Date = DateTime.UtcNow;
info.ImageFormat = set.PrimaryImage.ImageFormat;
set.ResizedImages.Add(info);
using (System.Drawing.Bitmap bmp = (System.Drawing.Bitmap)System.Drawing.Bitmap.FromFile(set.PrimaryImage.Path))
using (System.Drawing.Bitmap newBmp = new System.Drawing.Bitmap(width, height))
using (System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(newBmp)) {
graphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
graphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
graphic.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
graphic.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
graphic.DrawImage(bmp, 0, 0, width, height);
MemoryStream ms = new MemoryStream();
newBmp.Save(ms, info.ImageFormat);
using (var fs = ProtectedFileStream.OpenExclusiveWriter(info.Path)) {
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(ms.ToArray());
}
}
return info;
}
}
private ImageSet GetOrCreateImageSet(Guid id)
{
ImageSet imageSet;
lock (this) {
imageSet = GetImageSet(id);
if (imageSet == null) {
imageSet = new ImageSet(this, id);
imageInfoCache[id] = imageSet;
}
}
return imageSet;
}
private void AddToCache(IMediaLocation item)
{
if (item is IFolderMediaLocation) {
return;
}
var extension = System.IO.Path.GetExtension(item.Path).ToLower();
ImageFormat imageFormat = null;
if (extension == ".png") {
imageFormat = ImageFormat.Png;
} else if (extension == ".jpg") {
imageFormat = ImageFormat.Jpeg;
} else if (extension == ".gif") {
imageFormat = ImageFormat.Gif;
}
else if (extension == ".bmp")
{
imageFormat = ImageFormat.Bmp;
}
else
{
// bad file in image cache
File.Delete(item.Path);
return;
}
var match = infoRegex.Match(item.Name);
if (match == null || match.Groups[1].Value == null) {
// bad file
File.Delete(item.Path);
return;
}
bool isPrimary = match.Groups[1].Value == "z";
Guid id = new Guid(match.Groups[2].Value);
int width = -1;
int height = -1;
if (!string.IsNullOrEmpty(match.Groups[3].Value)) {
width = Int32.Parse(match.Groups[3].Value);
}
if (!string.IsNullOrEmpty(match.Groups[4].Value)) {
height = Int32.Parse(match.Groups[4].Value);
}
var imageSet = GetImageSet(id);
if (imageSet == null) {
imageSet = new ImageSet(this, id);
imageInfoCache[id] = imageSet;
}
var info = new ImageInfo(imageSet);
info.ImageFormat = imageFormat;
info.Date = item.DateModified > item.DateCreated ? item.DateModified : item.DateCreated;
//upgrade logic
if (width == -1 || height == -1) {
Image image = Image.FromFile(item.Path);
isPrimary = true;
info.Width = image.Width;
info.Height = image.Height;
imageSet.PrimaryImage = info;
image.Dispose();
File.Move(item.Path, info.Path);
} else {
info.Width = width;
info.Height = height;
}
if (isPrimary) {
imageSet.PrimaryImage = info;
} else {
imageSet.ResizedImages.Add(info);
}
}
private static void DeleteImageSet(ImageSet imageSet, bool includeResized)
{
try {
if (imageSet.PrimaryImage != null) {
int retries = 0;
bool successful = false;
while (retries < 3 && !successful)
{
try
{
File.Delete(imageSet.PrimaryImage.Path);
successful = true;
}
catch (Exception e)
{
Logger.ReportException("Error attempting to delete image: " + imageSet.PrimaryImage.Path + ". Will retry...", e);
retries++;
}
}
}
if (includeResized)
{
foreach (var resized in imageSet.ResizedImages)
{
int retries = 0;
bool successful = false;
while (retries < 3 && !successful)
{
try
{
File.Delete(resized.Path);
successful = true;
}
catch (Exception e)
{
Logger.ReportException("Error attempting to delete image: " + resized.Path + ". Will retry...", e);
retries++;
}
}
}
}
} finally {
imageSet.ResizedImages = new List<ImageInfo>();
imageSet.PrimaryImage = null;
}
}
private static void ClearImageSet(ImageSet imageSet)
{
imageSet.PrimaryImage = null;
imageSet.ResizedImages = new List<ImageInfo>();
}
private static void ClearImageSet(ImageSet imageSet)
{
imageSet.PrimaryImage = null;
imageSet.ResizedImages = new List <ImageInfo>();
}
public ImageInfo(ImageSet parent)
{
this.Parent = parent;
}
public virtual string GetImagePath(Guid id)
{
ImageSet set = GetImageSet(id);
return(set != null && set.PrimaryImage != null ? set.PrimaryImage.Path : null);
}
private void AddToCache(IMediaLocation item)
{
if (item is IFolderMediaLocation)
{
return;
}
var extension = System.IO.Path.GetExtension(item.Path).ToLower();
ImageFormat imageFormat = null;
if (extension == ".png")
{
imageFormat = ImageFormat.Png;
}
else if (extension == ".jpg")
{
imageFormat = ImageFormat.Jpeg;
}
else if (extension == ".gif")
{
imageFormat = ImageFormat.Gif;
}
else if (extension == ".bmp")
{
imageFormat = ImageFormat.Bmp;
}
else
{
// bad file in image cache
File.Delete(item.Path);
return;
}
var match = infoRegex.Match(item.Name);
if (match == null || match.Groups[1].Value == null)
{
// bad file
File.Delete(item.Path);
return;
}
bool isPrimary = match.Groups[1].Value == "z";
Guid id = new Guid(match.Groups[2].Value);
int width = -1;
int height = -1;
if (!string.IsNullOrEmpty(match.Groups[3].Value))
{
width = Int32.Parse(match.Groups[3].Value);
}
if (!string.IsNullOrEmpty(match.Groups[4].Value))
{
height = Int32.Parse(match.Groups[4].Value);
}
var imageSet = GetImageSet(id);
if (imageSet == null)
{
imageSet = new ImageSet(this, id);
imageInfoCache[id] = imageSet;
}
var info = new ImageInfo(imageSet);
info.ImageFormat = imageFormat;
info.Date = item.DateModified > item.DateCreated ? item.DateModified : item.DateCreated;
//upgrade logic
if (width == -1 || height == -1)
{
Image image = Image.FromFile(item.Path);
isPrimary = true;
info.Width = image.Width;
info.Height = image.Height;
imageSet.PrimaryImage = info;
image.Dispose();
File.Move(item.Path, info.Path);
}
else
{
info.Width = width;
info.Height = height;
}
if (isPrimary)
{
imageSet.PrimaryImage = info;
}
else
{
imageSet.ResizedImages.Add(info);
}
}