/// <summary>
/// Treats the given image and saves the result.
/// Creates the chapter file needed for the epub related to the image.
/// If the image width / height ratio is over 0.75, it will not be treated.
/// </summary>
/// <param name="imageOriginal">Image to be treated.</param>
/// <param name="imageIndex">Index of the current image in the list of treated images.</param>
/// <param name="imagePath">Path of the image to treat.</param>
private void SaveImage(Bitmap imageOriginal, ref int imageIndex, string imagePath)
{
if (imageOriginal.Width / imageOriginal.Height > 0.75)
{
ratioErrors.Add(imagePath);
return;
}
using (Bitmap treatedImage = ImageTreater.GetInstance().TreatImage(imageOriginal, Data.Height, Data.Grayscale, Data.Trimming, Data.TrimmingValue, Data.LeftMargin, Data.TrimmingMethod))
{
treatedImage.Save(imagesFolderPath + "I" + imageIndex.ToString() + ".jpg", codec, parameters);
}
builderContent1.AppendLine("\t\t<item xmlns=\"\" id=\"P" + imageIndex.ToString() + "\" href=\"P" + imageIndex.ToString() + ".xml\" media-type=\"application/xhtml+xml\"/>");
builderContent2.AppendLine("\t\t<itemref xmlns=\"\" idref=\"P" + imageIndex.ToString() + "\" linear=\"yes\"/>");
builderToc1.AppendLine("\t\t<navPoint xmlns=\"\" id=\"N" + imageIndex.ToString() + "\" playOrder=\"" + imageIndex.ToString() + "\"><navLabel><text>P" + imageIndex.ToString() + "</text></navLabel><content src=\"P" + imageIndex.ToString() + ".xml\"/></navPoint>");
StringBuilder chapter = new StringBuilder();
chapter.Append(builderChapter1.ToString());
chapter.AppendLine("\t\t<img style=\"margin:0\" src=\"Images/I" + imageIndex.ToString() + ".jpg\" />");
chapter.Append(builderChapter2.ToString());
StreamWriter chapterWriter = new StreamWriter(oebpsFolderPath + "P" + imageIndex.ToString() + ".xml", false);
chapterWriter.Write(chapter.ToString());
chapterWriter.Close();
imageIndex++;
}
/// <summary>
/// Attempts to read the image files and checks if they are Double Pages.
/// Sends each of the resulting images for treatment.
/// </summary>
private void ProcessImages()
{
int imageIndex = 1;
foreach (string path in Data.Files)
{
Bitmap from = null;
try
{
from = new Bitmap(path);
}
catch
{
imageErrors.Add(path);
}
if (from == null)
{
continue;
}
using (from)
{
List <Bitmap> images = ImageTreater.GetInstance().HandleDoublePage(from, Data.DoublePage, Data.Offset);
foreach (Bitmap image in images)
{
SaveImage(image, ref imageIndex, path);
image.Dispose();
}
}
TreatedImages++;
}
}
private void SetImage2(Bitmap bitmap, MemoryStream stream)
{
using (Bitmap treatedImage = ImageTreater.GetInstance().TreatImage(bitmap, Data.Height, Data.Grayscale, Data.Trimming, Data.TrimmingValue, Data.LeftMargin, Data.TrimmingMethod))
{
treatedImage.Save(stream, codec, parameters);
}
Image2 = BitmapFrame.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
}
/// <summary>
/// Returns the single instance of the ImageTreater class.
/// </summary>
/// <returns>A single instance of the ImageTreater class.</returns>
public static ImageTreater GetInstance()
{
lock (typeof(ImageTreater))
{
if (instance == null)
{
instance = new ImageTreater();
}
}
return(instance);
}
/// <summary>
/// Displays the selected image as it will appear in the epub file.
/// </summary>
private void TreatImage()
{
ImagePath = Data.Files[currentImageIndex];
using (MemoryStream stream = new MemoryStream())
{
Bitmap imageToTreat = null;
try
{
imageToTreat = new Bitmap(Data.Files[currentImageIndex]);
}
catch
{
Image1 = null;
Image2 = null;
Error = Data.Files[currentImageIndex];
ShowError = true;
}
if (imageToTreat != null)
{
ShowError = false;
using (imageToTreat)
{
List <Bitmap> images = ImageTreater.GetInstance().HandleDoublePage(imageToTreat, Data.DoublePage, Data.Offset);
if (images.Count == 1)
{
SetImage1(images[0], stream);
images[0].Dispose();
Image2 = null;
}
else if (images.Count == 2)
{
SetImage1(images[0], stream);
images[0].Dispose();
stream.Flush();
SetImage2(images[1], stream);
images[1].Dispose();
}
}
}
}
}