/// <summary>
/// Overridden because a root collection container is not
/// managed in the same manner as a typical
/// <see cref="CpMediaContainer"/>.
/// Immediately after adding the spider to the container's listing
/// of spiders, the current listing of roots is compared against
/// the spider's IsMatch() method and then the spider is notified
/// of its matches.
/// </summary>
/// <param name="spider"></param>
/// <param name="stateObject">allows additional information to be sent along with the spider</param>
protected override void SubscribeSpider(CdsSpider spider, object stateObject)
{
lock (this.m_Spiders.SyncRoot)
{
// attempt to find the spider in the current list
bool hasSpider = this.IsSpiderSubscribed(spider);
// don't add the spider if it's already added
if (hasSpider == false)
{
this.m_Spiders.Add(new WeakReference(spider, true));
}
}
ArrayList matched;
lock (this.m_Roots)
{
matched = new ArrayList(this.m_Roots.Count);
foreach (CpRootContainer r in this.m_Roots)
{
if (spider.IsMatch(r) == true)
{
matched.Add(r);
r.IncrementSpiderMatches();
}
}
}
spider.NotifySinkAdd(this, matched);
}
private CdsSpider GetSpider(CpMediaContainer mc)
{
if (InvokeRequired == true)
{
int tt = 5;
}
CdsSpider spider;
lock (this.m_ContainerToSpider)
{
spider = (CdsSpider) this.m_ContainerToSpider[mc];
if (spider == null)
{
spider = new CdsSpider();
spider.OnMatchesAdded += new CdsSpider.Delegate_OnMatchesChanged(this.Sink_SpiderOnMatchesAdded);
spider.OnMatchesCleared += new CdsSpider.Delegate_OnMatchesChanged(this.Sink_SpiderOnMatchesCleared);
spider.OnMatchesRemoved += new CdsSpider.Delegate_OnMatchesChanged(this.Sink_SpiderOnMatchesRemoved);
spider.OnUpdateDone += new CdsSpider.Delegate_OnMatchesChanged(this.Sink_SpiderOnMatchesUpdated);
if (deviceTree.SelectedNode != null)
{
IMediaContainer selected = deviceTree.SelectedNode.Tag as IMediaContainer;
if (selected != null)
{
if (mc.Parent == selected)
{
spider.Comparer = MainForm.MatchContainers;
}
else if (mc.Parent != null)
{
if (
(mc.Parent.Parent == selected) &&
(! (selected is CpRootCollectionContainer)) &&
(selected != null)
)
{
spider.Comparer = MainForm.MatchContainers;
}
else
{
spider.Comparer = MainForm.MatchNever;
}
}
else
{
spider.Comparer = MainForm.MatchNever;
}
}
else
{
spider.Comparer = MainForm.MatchNever;
}
}
else
{
spider.Comparer = MainForm.MatchNever;
}
spider.Sorter = null;
spider.MonitorThis = mc;
this.m_ContainerToSpider[mc] = spider;
}
spider.Tag = DateTime.Now;
}
return spider;
}
/// <summary>
/// Clears the GUI's listing of items for the currently selected container.
/// </summary>
/// <param name="spider"></param>
/// <param name="objects">should be null</param>
private void ClearItemView(CdsSpider spider, IList emptyList)
{
lock (this.LockGuiListing)
{
mediaListView.BeginUpdate();
mediaListView.Items.Clear();
mediaListView.EndUpdate();
}
}
/// <summary>
/// Adds to the GUI's listing of items for the currently selected container.
/// </summary>
/// <param name="spider"></param>
/// <param name="addThese"></param>
private void AddItemView(CdsSpider spider, IList addThese)
{
lock (this.LockGuiListing)
{
mediaListView.BeginUpdate();
foreach (ICpMedia media in addThese)
{
if (media.IsItem)
{
CpMediaItem item = (CpMediaItem) media;
string artist = "";
if (item.MergedProperties[CommonPropertyNames.creator] != null && item.MergedProperties[CommonPropertyNames.creator].Count > 0)
{
ICdsElement propValue = (ICdsElement) item.MergedProperties[CommonPropertyNames.creator][0];
artist = propValue.StringValue;
}
string size = "";
if (item.MergedResources.Length > 0)
{
MediaResource res = (MediaResource)item.MergedResources[0];
if (res.Size.IsValid)
{
size = BuildSizeString((long) res.Size.m_Value);//BuildSizeString(long.Parse(res.Size.ToString()));
}
}
int icon = 4;
string classtype = item.Class.ToString();
switch (classtype)
{
case "object.item":
icon = 8;
break;
case "object.item.imageItem":
case "object.item.imageItem.photo":
icon = 7;
break;
case "object.item.videoItem":
case "object.item.videoItem.movie":
icon = 6;
break;
case "object.item.audioItem":
case "object.item.audioItem.musicTrack":
icon = 5;
break;
}
ListViewItem l = new ListViewItem(new string[] {item.Title,artist,size},icon);
l.Tag = item;
mediaListView.Items.Add(l);
}
}
mediaListView.EndUpdate();
}
}
private void UpdateItemView(CdsSpider spider, IList ignore)
{
lock (this.LockGuiListing)
{
ArrayList al = new ArrayList((ICollection) mediaListView.Items);
mediaListView.BeginUpdate();
foreach (ListViewItem lvi in al)
{
CpMediaItem item = (CpMediaItem) lvi.Tag;
string artist = "";
if (item.MergedProperties[CommonPropertyNames.creator] != null && item.MergedProperties[CommonPropertyNames.creator].Count > 0)
{
ICdsElement propValue = (ICdsElement) item.MergedProperties[CommonPropertyNames.creator][0];
artist = propValue.StringValue;
}
string size = "";
if (item.MergedResources.Length > 0)
{
MediaResource res = (MediaResource)item.MergedResources[0];
if (res.Size.IsValid)
{
size = BuildSizeString((long) res.Size.m_Value);//BuildSizeString(long.Parse(res.Size.ToString()));
}
}
int icon = 4;
string classtype = item.Class.ToString();
switch (classtype)
{
case "object.item":
icon = 8;
break;
case "object.item.imageItem":
case "object.item.imageItem.photo":
icon = 7;
break;
case "object.item.videoItem":
case "object.item.videoItem.movie":
icon = 6;
break;
case "object.item.audioItem":
case "object.item.audioItem.musicTrack":
icon = 5;
break;
}
lvi.SubItems[0].Text = item.Title;
lvi.SubItems[1].Text = artist;
lvi.SubItems[2].Text = size;
lvi.ImageIndex = icon;
if (mediaPropertyForm != null)
{
if (item == this.mediaPropertyForm.MediaObj)
{
this.mediaPropertyForm.MediaObj = item;
}
}
}
mediaListView.EndUpdate();
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="mediaObjects"></param>
private void Sink_SpiderOnMatchesUpdated(CdsSpider sender, IList mediaObjects)
{
this.Invoke(new Delegate_UpdateItemView(this.UpdateItemView), sender, mediaObjects);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="mediaObjects"></param>
private void Sink_SpiderOnMatchesRemoved(CdsSpider sender, IList mediaObjects)
{
if (mediaObjects.Count > 0) this.Invoke(new Delegate_UpdateItemView(this.RemoveItemView), sender, mediaObjects);
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="mediaObjects"></param>
private void Sink_SpiderOnMatchesCleared(CdsSpider sender, IList mediaObjects)
{
if (InvokeRequired == true) { Invoke(new CdsSpider.Delegate_OnMatchesChanged(Sink_SpiderOnMatchesCleared), sender, mediaObjects); return; }
if (deviceTree.SelectedNode.Tag == sender.MonitorThis) ClearItemView(sender, null);
}
/// <summary>
/// Removes from the GUI's listing of items for the currently selected container.
/// </summary>
/// <param name="spider"></param>
/// <param name="removeThese"></param>
private void RemoveItemView(CdsSpider spider, IList removeThese)
{
lock (this.LockGuiListing)
{
ArrayList removeLVI = new ArrayList(removeThese.Count);
foreach (ListViewItem lvi in mediaListView.Items)
{
if (removeThese.Contains(lvi.Tag))
{
removeLVI.Add(lvi);
}
}
if (removeLVI.Count > 0)
{
mediaListView.BeginUpdate();
foreach (ListViewItem lvi in removeLVI)
{
mediaListView.Items.Remove(lvi);
}
mediaListView.EndUpdate();
}
}
}
/// <summary>
/// Overridden because a root collection container is not
/// managed in the same manner as a typical
/// <see cref="CpMediaContainer"/>.
/// Immediately after adding the spider to the container's listing
/// of spiders, the current listing of roots is compared against
/// the spider's IsMatch() method and then the spider is notified
/// of its matches.
/// </summary>
/// <param name="spider"></param>
/// <param name="stateObject">allows additional information to be sent along with the spider</param>
protected override void SubscribeSpider(CdsSpider spider, object stateObject)
{
lock (this.m_Spiders.SyncRoot)
{
// attempt to find the spider in the current list
bool hasSpider = this.IsSpiderSubscribed(spider);
// don't add the spider if it's already added
if (hasSpider == false)
{
this.m_Spiders.Add(new WeakReference(spider, true));
}
}
ArrayList matched;
lock (this.m_Roots)
{
matched = new ArrayList(this.m_Roots.Count);
foreach (CpRootContainer r in this.m_Roots)
{
if (spider.IsMatch(r) == true)
{
matched.Add(r);
r.IncrementSpiderMatches();
}
}
}
spider.NotifySinkAdd(this, matched);
}