private void UpdateControlInfo()
{
TimelineContext context = this.As <TimelineContext>();
string filePath;
if (Uri.IsAbsoluteUri)
{
filePath = Uri.LocalPath;
}
else
{
filePath = Uri.OriginalString;
}
string fileName = Path.GetFileName(filePath);
if (Dirty)
{
fileName += "*";
}
context.ControlInfo.Name = fileName;
context.ControlInfo.Description = filePath;
}
private bool DoCommand(object commandTag, bool doing)
{
TimelineContext context = m_contextRegistry.GetActiveContext <TimelineContext>();
if (context == null)
{
return(false);
}
document = context.As <TimelineDocument>();
if (document == null)
{
return(false);
}
if (commandTag is Command)
{
if (Do_Media_Command(commandTag, doing) == true)
{
return(true);
}
if ((Command)commandTag == Command.ToggleSplitMode)
{
if (doing && document.SplitManipulator != null)
{
document.SplitManipulator.Active = !document.SplitManipulator.Active;
}
return(true);
}
ITimelineObject target = m_contextRegistry.GetCommandTarget <ITimelineObject>();
if (target == null)
{
return(false);
}
IInterval activeInterval = target as IInterval;
ITrack activeTrack =
(activeInterval != null) ? activeInterval.Track : target.As <ITrack>();
IGroup activeGroup =
(activeTrack != null) ? activeTrack.Group : target.As <IGroup>();
ITimeline activeTimeline =
(activeGroup != null) ? activeGroup.Timeline : target.As <ITimeline>();
ITransactionContext transactionContext = context.TimelineControl.TransactionContext;
switch ((Command)commandTag)
{
case Command.RemoveGroup:
if (activeGroup == null)
{
return(false);
}
if (doing)
{
transactionContext.DoTransaction(delegate
{
activeGroup.Timeline.Groups.Remove(activeGroup);
},
"Remove Group");
}
return(true);
case Command.RemoveTrack:
if (activeTrack == null)
{
return(false);
}
if (doing)
{
transactionContext.DoTransaction(delegate
{
activeTrack.Group.Tracks.Remove(activeTrack);
},
"Remove Track");
}
return(true);
case Command.RemoveEmptyGroupsAndTracks:
if (activeTimeline == null)
{
return(false);
}
if (doing)
{
transactionContext.DoTransaction(delegate
{
IList <IGroup> groups = activeTimeline.Groups;
for (int i = 0; i < groups.Count;)
{
IList <ITrack> tracks = groups[i].Tracks;
for (int j = 0; j < tracks.Count;)
{
if (tracks[j].Intervals.Count == 0 && tracks[j].Keys.Count == 0)
{
tracks.RemoveAt(j);
}
else
{
j++;
}
}
if (tracks.Count == 0)
{
groups.RemoveAt(i);
}
else
{
i++;
}
}
},
"Remove Empty Groups and Tracks");
}
return(true);
}
}
else if (commandTag is StandardCommand)
{
switch ((StandardCommand)commandTag)
{
case StandardCommand.ViewZoomExtents:
if (doing)
{
document.TimelineControl.Frame();
}
return(true);
}
}
return(false);
}
/// <summary>
/// Loads the document at the given URI. Creates a D2dTimelineRenderer and D2dTimelineControl
/// (through TimelineDocument's Renderer property) to render and display timelines.
/// If isMasterDocument is true and if the file doesn't exist, a new document is created.</summary>
/// <param name="uri">URI of document to load</param>
/// <param name="isMasterDocument">True iff is master document</param>
/// <returns>TimelineDocument loaded</returns>
private TimelineDocument LoadOrCreateDocument(Uri uri, bool isMasterDocument)
{
// Documents need to have a absolute Uri, so that the relative references to sub-documents
// are not ambiguous, and so that the FileWatcherService can be used.
string filePath;
if (uri.IsAbsoluteUri)
{
filePath = uri.LocalPath;
}
else if (!isMasterDocument)
{
filePath = PathUtil.GetAbsolutePath(uri.OriginalString,
Path.GetDirectoryName(s_repository.ActiveDocument.Uri.LocalPath));
uri = new Uri(filePath, UriKind.Absolute);
}
else
{
filePath = PathUtil.GetAbsolutePath(uri.OriginalString, Directory.GetCurrentDirectory());
uri = new Uri(filePath, UriKind.Absolute);
}
// Check if the repository contains this Uri. Remember that document Uris have to be absolute.
bool isNewToThisEditor = true;
DomNode node = null;
TimelineDocument document = (TimelineDocument)s_repository.GetDocument(uri);
if (document != null)
{
node = document.DomNode;
isNewToThisEditor = false;
}
else if (File.Exists(filePath))
{
// read existing document using standard XML reader
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
DomXmlReader reader = new DomXmlReader(s_schemaLoader);
node = reader.Read(stream, uri);
}
}
else if (isMasterDocument)
{
// create new document by creating a Dom node of the root type defined by the schema
node = new DomNode(Schema.timelineType.Type, Schema.timelineRootElement);
}
if (node != null)
{
if (document == null)
{
document = node.Cast <TimelineDocument>();
D2dTimelineRenderer renderer = CreateTimelineRenderer();
document.Renderer = renderer;
renderer.Init(document.TimelineControl.D2dGraphics);
string fileName = Path.GetFileName(filePath);
ControlInfo controlInfo = new ControlInfo(fileName, filePath, StandardControlGroup.Center);
//Set IsDocument to true to prevent exception in command service if two files with the
// same name, but in different directories, are opened.
controlInfo.IsDocument = true;
TimelineContext timelineContext = document.Cast <TimelineContext>();
timelineContext.ControlInfo = controlInfo;
document.Uri = uri;
if (isMasterDocument)
{
s_repository.ActiveDocument = document;//adds 'document'
}
else
{
// For sub-documents, we want ActiveDocument to remain the main document so that
// TimelineValidator can identify if a sub-document or master document is being
// modified.
IDocument previous = s_repository.ActiveDocument;
s_repository.ActiveDocument = document; //adds 'document'
s_repository.ActiveDocument = previous; //restores master document
}
}
IHierarchicalTimeline hierarchical = document.Timeline as IHierarchicalTimeline;
if (hierarchical != null)
{
ResolveAll(hierarchical, new HashSet <IHierarchicalTimeline>());
}
// Listen to events if this is the first time we've seen this.
if (isNewToThisEditor)
{
// The master document/context needs to listen to events on any sub-document
// so that transactions can be cancelled correctly.
if (isMasterDocument)
{
node.AttributeChanging += DomNode_AttributeChanging;
}
else
{
DomNode masterNode = s_repository.ActiveDocument.As <DomNode>();
node.SubscribeToEvents(masterNode);
}
}
// Initialize Dom extensions now that the data is complete
node.InitializeExtensions();
}
return(document);
}