/// <summary>
/// Garbage collection
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tmrCleanup_Tick(object sender, EventArgs e)
{
if (Settings.Instance != null)
{
if (MeteredConnection.IsMetered(Settings.Instance.MeteredSSIDs))
{
return;
}
if (Settings.Instance.LastUsage > Settings.Instance.MaxQueries * 0.95) //Don't wipe out if usage is too high.
{
return;
}
}
if (!cleanupRunning)
{
try{
CleanupTasks();
//if (tasks.Count == 0)
//CleanupFiles();
}
catch (Exception) { }
}
}
private void tmrUpdate_Tick(object sender, EventArgs e)
{
if (updateRunning)
{
return;
}
updateRunning = true;
Random r = new Random();
if (Settings.Instance == null)
{
if (!LoadSettings())
{
updateRunning = false;
return;
}
}
if (!MeteredConnection.IsMetered(Settings.Instance.MeteredSSIDs))
{
Settings.Instance.PurgeCachedResults(new TimeSpan(1, 0, 0));
if (Settings.Instance.CachedResults.Count == 0 || UnderThreshold())
{
GetMoreResults();
}
}
if (Settings.Instance.CachedResults.Count > 0)
{
int rand = r.Next(0, Settings.Instance.CachedResults.Count - 1);
while (Settings.Instance.CachedResults.Count > 0 && !File.Exists(Settings.Instance.CachedResults[rand].Path))
{
Settings.Instance.RemoveCachedResult(Settings.Instance.CachedResults[rand]);
if (Settings.Instance.CachedResults.Count > 0)
{
rand = r.Next(0, Settings.Instance.CachedResults.Count - 1);
}
}
if (Settings.Instance.CachedResults.Count > 0)
{
foreach (Screen screen in Screen.AllScreens)
{
rand = r.Next(0, Settings.Instance.CachedResults.Count - 1);
SetImage(screen, Settings.Instance.CachedResults[rand]);
}
}
else
{
List <string> files = new List <string>();
files.AddRange(Directory.GetFiles(Settings.Instance.CacheDirectory, "*.jpg"));
files.AddRange(Directory.GetFiles(Settings.Instance.CacheDirectory, "*.png"));
if (files != null && files.Count > 0)
{
foreach (Screen screen in Screen.AllScreens)
{
rand = r.Next(0, files.Count - 1);
SetImage(screen, files[rand]);
}
}
}
}
if (Settings.Instance.UpdateMin != Settings.Instance.UpdateMax)
{
tmrUpdate.Interval = r.Next(Settings.Instance.UpdateMin * 1000, Settings.Instance.UpdateMax * 1000);
}
else
{
tmrUpdate.Interval = Settings.Instance.UpdateMin * 1000;
}
updateRunning = false;
}
/// <summary>
/// Timer function to handle Cache and displaying next image.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tmrUpdate_Tick(object sender, EventArgs e)
{
if (Settings.Instance == null)
{
if (!LoadSettings())
{
lblNotConfigured.Visible = true;
if (this.Height - lblNotConfigured.Height > 0 && this.Width - lblNotConfigured.Width > 0)
{
//lblNotConfigured should move around.
lblNotConfigured.Left = ThreadSafeRandom.ThisThreadsRandom.Next(0, this.Width - lblNotConfigured.Width);
lblNotConfigured.Top = ThreadSafeRandom.ThisThreadsRandom.Next(0, this.Height - lblNotConfigured.Height);
}
return;
}
}
else if (lblNotConfigured.Visible)
{
lblNotConfigured.Visible = false;
}
if (!Settings.Instance.ShowDescription)
{
pnlDescription.Visible = false;
}
if (PlaylistIndex < Playlist.Count)
{
SetImage();
}
try
{
//Handle stale cache items only if not on a metered WiFi connection.
//Not actually tested this yet!
if (!MeteredConnection.IsMetered(Settings.Instance.MeteredSSIDs))
{
if (Settings.Instance.LastUsage < Settings.Instance.MaxQueries * 0.9 && tasks.Count == 0) //Don't wipe out if usage is too high.
{
Settings.Instance.PurgeCachedResults(new TimeSpan(1, 0, 0));
}
if (Settings.Instance.CachedResults.Count == 0 || UnderThreshold())
{
GetMoreResults();
}
}
if (Settings.Instance.CachedResults.Count > 0)
{
int rand = ThreadSafeRandom.ThisThreadsRandom.Next(0, Settings.Instance.CachedResults.Count - 1);
//Remove Cache item if the image isn't on the file system. (Assume removed externally)
while (Settings.Instance.CachedResults.Count > 0 && !File.Exists(Settings.Instance.CachedResults[rand].Path))
{
Settings.Instance.RemoveCachedResult(Settings.Instance.CachedResults[rand]);
if (Settings.Instance.CachedResults.Count > 0)
{
rand = ThreadSafeRandom.ThisThreadsRandom.Next(0, Settings.Instance.CachedResults.Count - 1);
}
}
if (Settings.Instance.CachedResults.Count > 0)
{
rand = ThreadSafeRandom.ThisThreadsRandom.Next(0, Settings.Instance.CachedResults.Count - 1);
SetImage(Settings.Instance.CachedResults[rand]);
}
else
{
//Fallback if there are images but cache is empty for some reason?
List <string> files = new List <string>();
files.AddRange(Directory.GetFiles(Settings.Instance.CacheDirectory, "*.jpg"));
files.AddRange(Directory.GetFiles(Settings.Instance.CacheDirectory, "*.png"));
if (files != null && files.Count > 0)
{
rand = ThreadSafeRandom.ThisThreadsRandom.Next(0, files.Count - 1);
SetImage(files[rand]);
}
}
this.BackgroundImageLayout = Settings.Instance.Layout;
}
}
catch (Exception) { }
if (Settings.Instance.UpdateMin != Settings.Instance.UpdateMax)
{
tmrUpdate.Interval = ThreadSafeRandom.ThisThreadsRandom.Next(Settings.Instance.UpdateMin * 1000, Settings.Instance.UpdateMax * 1000);
}
else
{
tmrUpdate.Interval = Settings.Instance.UpdateMin * 1000;
}
//if (lblNotConfigured.Text.Equals("OK", StringComparison.InvariantCultureIgnoreCase))
// lblNotConfigured.Visible = false;
}