/// <summary>
/// Loads the image thumbnail to image cache in a background thread.
/// When the loading is complete, invalidate the item rectangle to make it redraw.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="entry">The entry.</param>
/// <param name="cache">The cache.</param>
/// <param name="bounds">The bounds.</param>
private void LoadImageToCache(int index, Entry entry, ImageCache cache, Rectangle bounds)
{
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += delegate(object sender, DoWorkEventArgs args)
{
Image thumbnailImage = new Bitmap(bounds.Width, bounds.Height);
using (Image image = Image.FromFile(entry.PhotoPath))
{
this.DrawToFit(Graphics.FromImage(thumbnailImage), image, new Rectangle(0, 0, bounds.Width, bounds.Height));
}
cache.AddCachedImage(entry, thumbnailImage);
};
worker.RunWorkerCompleted += delegate(object sender, RunWorkerCompletedEventArgs args)
{
// Start the timer to do the fade in animation.
Timer timer = new Timer();
timer.Interval = 1;
long initialTimestamp = DateTime.Now.Ticks;
timer.Tick += delegate(object s, EventArgs e)
{
long diff = (DateTime.Now.Ticks - initialTimestamp) / 10000;
int alpha = (int)(255 - (255 * diff / PhotoFadeInTime));
if (alpha <= 0)
{
if (this.PhotoAlphaValues.ContainsKey(entry))
{
this.PhotoAlphaValues.Remove(entry);
}
timer.Stop();
}
else
{
if (this.PhotoAlphaValues.ContainsKey(entry))
{
this.PhotoAlphaValues[entry] = alpha;
}
else
{
this.PhotoAlphaValues.Add(entry, alpha);
}
}
this.Invalidate(this.GetItemRectangle(index));
};
timer.Start();
};
worker.RunWorkerAsync();
}
/// <summary>
/// Loads the image thumbnail to image cache in a background thread.
/// When the loading is complete, invalidate the item rectangle to make it redraw.
/// </summary>
/// <param name="index">The index.</param>
/// <param name="entry">The entry.</param>
/// <param name="cache">The cache.</param>
/// <param name="bounds">The bounds.</param>
private void LoadImageToCache(int index, Entry entry, ImageCache cache, Rectangle bounds)
{
BackgroundWorker worker = new BackgroundWorker();
worker.DoWork += delegate(object sender, DoWorkEventArgs args)
{
Image thumbnailImage = new Bitmap(bounds.Width, bounds.Height);
using (Image image = Image.FromFile(entry.PhotoPath))
{
this.DrawToFit(Graphics.FromImage(thumbnailImage), image, new Rectangle(0, 0, bounds.Width, bounds.Height));
}
cache.AddCachedImage(entry, thumbnailImage);
};
worker.RunWorkerCompleted += delegate(object sender, RunWorkerCompletedEventArgs args)
{
// Start the timer to do the fade in animation.
Timer timer = new Timer();
timer.Interval = 1;
long initialTimestamp = DateTime.Now.Ticks;
timer.Tick += delegate(object s, EventArgs e)
{
long diff = (DateTime.Now.Ticks - initialTimestamp) / 10000;
int alpha = (int)(255 - (255 * diff / PhotoFadeInTime));
if (alpha <= 0)
{
if (this.PhotoAlphaValues.ContainsKey(entry))
{
this.PhotoAlphaValues.Remove(entry);
}
timer.Stop();
}
else
{
if (this.PhotoAlphaValues.ContainsKey(entry))
{
this.PhotoAlphaValues[entry] = alpha;
}
else
{
this.PhotoAlphaValues.Add(entry, alpha);
}
}
this.Invalidate(this.GetItemRectangle(index));
};
timer.Start();
};
worker.RunWorkerAsync();
}