private void ClearOutOfRangeItems()
{
if (this.previewCount <= 0)
{
return;
}
// Determine which slots are in range of a client
bool[] inRange = new bool[this.previewCount];
foreach (PreviewImageServiceClient client in this.clients.Items)
{
inRange[client.PreviewIndex] = true;
for (int i = 1; i <= PreviewImageCacheDistance; i++)
{
if (client.PreviewIndex - i >= 0)
{
inRange[client.PreviewIndex - i] = true;
}
if (client.PreviewIndex + i < this.previewCount)
{
inRange[client.PreviewIndex + i] = true;
}
}
}
// Remove out of range items from work queue
var newWorkQueue = new Queue <PreviewImageJob>();
while (this.previewImageWorkQueue.Count > 0)
{
PreviewImageJob job = this.previewImageWorkQueue.Dequeue();
if (inRange[job.PreviewIndex])
{
newWorkQueue.Enqueue(job);
}
}
// Remove out of range cache entries
for (int i = 0; i < this.previewCount; i++)
{
if (!inRange[i])
{
this.previewImageCache[i] = null;
}
}
}
private void ClearOutOfRangeItems()
{
// Remove out of range items from work queue
var newWorkQueue = new Queue <PreviewImageJob>();
while (this.previewImageWorkQueue.Count > 0)
{
PreviewImageJob job = this.previewImageWorkQueue.Dequeue();
if (Math.Abs(job.PreviewNumber - this.SelectedPreview) <= PreviewImageCacheDistance)
{
newWorkQueue.Enqueue(job);
}
}
// Remove out of range cache entries
for (int i = 0; i < this.previewCount; i++)
{
if (Math.Abs(i - this.SelectedPreview) > PreviewImageCacheDistance)
{
this.previewImageCache[i] = null;
}
}
}