/// <summary>
/// Adds the given <paramref name="element"/> to the <paramref name="layer">track</paramref>.
/// </summary>
/// <param name="element">The element being added.</param>
/// <param name="layer">The track where the element is going to be added.</param>
public void AddElement(TimelineElement element, Track layer)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
if (element.Id == Guid.Empty)
{
throw new ArgumentException("The element Id cannot be empty.", "element");
}
TimelineElement prevElement = null;
foreach (var entry in layer.Shots.Where(entry => entry.Position < element.Position))
{
prevElement = entry;
}
if (prevElement == null)
{
layer.Shots.Insert(0, element);
}
else
{
layer.Shots.Insert(layer.Shots.IndexOf(prevElement) + 1, element);
}
this.OnElementAdded(element);
var videoInOut = element.Asset as VideoAssetInOut;
if (videoInOut != null && videoInOut.AddMarkersToSequence)
{
this.AddPlayByPlayMarkersToTimeline(element.Position.TotalSeconds, videoInOut);
}
}
/// <summary>
/// Compares the position of the given elements.
/// </summary>
/// <param name="element1">The first element.</param>
/// <param name="element2">The second element.</param>
/// <returns>Returns a value indicating which element should be first.</returns>
private static int CompareElements(TimelineElement element1, TimelineElement element2)
{
return(element1.Position.CompareTo(element2.Position));
}
/// <summary>
/// Tries to link the given <paramref name="element"/> to a previous element in the timeline.
/// </summary>
/// <param name="element">The element being linked.</param>
/// <param name="previousElement">The previous element being linked to the element.</param>
/// <returns>True if the link is effective;otherwise false.</returns>
public bool LinkPreviousElement(TimelineElement element, TimelineElement previousElement)
{
return(this.LinkNextElement(previousElement, element));
}
/// <summary>
/// Get the element within the specific range.
/// </summary>
/// <param name="startTimeCode">The start time to look to the element.</param>
/// <param name="endTimeCode">The end time to look to the element.</param>
/// <param name="layer">The track where the element should be searched.</param>
/// <param name="elementToIgnore">The element being ignored in the search.</param>
/// <returns>The element within the range or null.</returns>
public TimelineElement GetElementWithinRange(TimeCode startTimeCode, TimeCode endTimeCode, Track layer, TimelineElement elementToIgnore)
{
foreach (var entry in layer.Shots)
{
var entryStart = entry.Position;
var entryEnd = entry.Position + entry.Duration;
if (entry == elementToIgnore)
{
continue;
}
if (startTimeCode == entryStart || endTimeCode == entryEnd)
{
return(entry);
}
if (startTimeCode > entryStart && startTimeCode < entryEnd)
{
return(entry);
}
if (endTimeCode > entryStart && endTimeCode < entryEnd)
{
return(entry);
}
if (startTimeCode < entryStart && endTimeCode > entryEnd)
{
return(entry);
}
if (startTimeCode > entryStart && startTimeCode < entryEnd)
{
return(entry);
}
}
return(null);
}
/// <summary>
/// Initializes a new instance of the <see cref="TimelineElementEventArgs"/> class.
/// </summary>
/// <param name="timelineElement">The timeline element.</param>
public TimelineElementEventArgs(TimelineElement timelineElement)
{
this.Element = timelineElement;
}
/// <summary>
/// Sets the memento.
/// </summary>
/// <param name="element">The <see cref="TimelineElement"/>.</param>
public void SetMemento(TimelineElement element)
{
this.InPosition = element.inPosition;
this.OutPosition = element.OutPosition;
this.Position = element.Position;
}
private bool ShouldRemovePlayByPlayMarkers(TimelineElement timelineElement)
{
var videoInOut = timelineElement.Asset as VideoAssetInOut;
return(videoInOut != null && videoInOut.AddMarkersToSequence);
}
/// <summary>
/// Get the element that is within the range of the given <paramref name="position"/>.
/// </summary>
/// <param name="position">The position used to find the elements.</param>
/// <param name="layer">The track where the element is going to be searched.</param>
/// <param name="elementToIgnore">The element being ingnored in the search.</param>
/// <returns>The element within the position or null.</returns>
public TimelineElement GetElementAtPosition(TimeCode position, Track layer, TimelineElement elementToIgnore)
{
return(layer.Shots.Where(entry => entry != elementToIgnore).FirstOrDefault(entry => entry.Position <= position && (entry.Position + entry.Duration) >= position));
}
public TimelineElementEventArgs(TimelineElement timelineElement, RefreshSource source)
{
this.Element = timelineElement;
this.RefreshSource = source;
}
/// <summary>
/// Initializes a new instance of the <see cref="TimelineElementEventArgs"/> class.
/// </summary>
/// <param name="timelineElement">The timeline element.</param>
public TimelineElementEventArgs(TimelineElement timelineElement) : this(timelineElement, RefreshSource.Any)
{
}