Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Image_Decorator
interface IImagePersistor
{
void Save(Image image, string name);
}
class FilePersistor : IImagePersistor
{
public void Save(Image image, string name)
{
var stream = File.Open(name);
stream.Write(RawData, 0, Length);
stream.Close();
}
}
class FormatAwarePersistorDecorator : IImagePersistor
{
private IImagePersistor m_innerPersitor;
public FormatAwarePersistorDecorator(IImagePersistor persistor)
{
if (persistor == null)
{
throw new ArgumentNullException();
}
m_innerPersitor = persistor;
}
void IImagePersistor.Save(Image image, string name)
{
//vyber image.RawData/Transformuj podle přípony souboru (klidně další pomocné objekty v pozadí)
Image newImageWithSpecialFormat = Convert(image.RawData, name);
m_innerPersitor.Save(newImageWithSpecialFormat);
}
}
class Image
{
private IImagePersistor m_imagePersistor;
public Image()
{
m_imagePersistor = new FormatAwarePersistorDecorator(new FilePersistor());
}
public IImagePersistor ImagePersistor
{
get
{
return m_imagePersistor;
}
set
{
m_imagePersistor = value ?? FormatAwarePersistorDecorator(new FilePersistor());
}
}
public int Length
{
get;
private set;
}
public Byte[] RawData
{
get;
set;
}
public void Save(string name)
{
m_imagePersistor.Save(this, name);
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment