private void owner_MouseDownPicked(object sender, HitEventArgs e)
{
if (e.MouseEvent.Button != MouseButtons.Left)
{
return;
}
TimelinePath hitPath = e.HitRecord.HitPath;
bool isResizing = false;
switch (e.HitRecord.Type)
{
case HitType.IntervalResizeLeft:
if (Owner.IsEditable(hitPath) && (
Owner.Selection.SelectionContains(hitPath) ||
Owner.Select <IEvent>(hitPath)))
{
IInterval hitInterval = e.HitRecord.HitTimelineObject as IInterval;
m_resizer = new Resizer(Side.Left, ScaleMode.InPlace, hitInterval.Start, Owner);
isResizing = true;
}
break;
case HitType.IntervalResizeRight:
if (Owner.IsEditable(hitPath) && (
Owner.Selection.SelectionContains(hitPath) ||
Owner.Select <IEvent>(hitPath)))
{
IInterval hitInterval = e.HitRecord.HitTimelineObject as IInterval;
m_resizer = new Resizer(Side.Right, ScaleMode.InPlace, hitInterval.Start + hitInterval.Length, Owner);
isResizing = true;
}
break;
case HitType.Custom:
{
HitRecordObject hitManipulator = e.HitRecord.HitObject as HitRecordObject;
if (hitManipulator != null)
{
if (hitManipulator.Side == Side.Left)
{
m_resizer = new Resizer(Side.Left, ScaleMode.TimePeriod, m_worldMin, Owner);
}
else
{
m_resizer = new Resizer(Side.Right, ScaleMode.TimePeriod, m_worldMax, Owner);
}
isResizing = true;
}
}
break;
default:
m_resizer = null;
break;
}
Owner.IsResizingSelection = isResizing; //legacy. obsolete.
}
private void owner_MouseMovePicked(object sender, HitEventArgs e)
{
if (e.MouseEvent.Button == MouseButtons.None)
{
HitRecord hitRecord = e.HitRecord;
TimelinePath hitPath = hitRecord.HitPath;
switch (hitRecord.Type)
{
case HitType.IntervalResizeLeft:
case HitType.IntervalResizeRight:
if (Owner.IsEditable(hitPath))
{
Owner.Cursor = Cursors.SizeWE;
}
break;
//one of the scale manipulator's handles?
case HitType.Custom:
if (hitRecord.HitObject == m_leftHitObject ||
hitRecord.HitObject == m_rightHitObject)
{
Owner.Cursor = Cursors.SizeWE;
}
break;
default:
break;
}
}
}
/// <summary>
/// Gets the last track as determined by the associated ITimeline</summary>
/// <returns>Last track as TimelinePath</returns>
protected TimelinePath GetLastTrack()
{
TimelinePath last = null;
foreach (TimelinePath track in Owner.AllTracks)
{
last = track;
}
return(last);
}
/// <summary>
/// Gets the last group as determined by the associated ITimeline</summary>
/// <returns>Last group as TimelinePath</returns>
protected TimelinePath GetLastGroup()
{
TimelinePath last = null;
foreach (TimelinePath group in Owner.AllGroups)
{
last = group;
}
return(last);
}
/// <summary>
/// Adds range of tracks to selection, from anchor to given target.
/// Handles selecting a track, taking into account selecting ranges of tracks.</summary>
/// <param name="target">Track as TimelinePath</param>
protected virtual void SelectTracks(TimelinePath target)
{
// add range of tracks, from anchor to target?
if ((Control.ModifierKeys & Keys.Shift) != Keys.None)
{
if (Anchor != null && Anchor.Last is ITrack && SelectionContext != null)
{
SelectionContext.SetRange(GetRangeOfTracks(Anchor, target));
return;
}
}
// simply add this target track, using the current modifier keys to determine how
Owner.Select <ITrack>(target);
}
private void owner_MouseMovePicked(object sender, HitEventArgs e)
{
string toolTipText = null;
if (m_active)
{
e.Handled = true;
if (e.HitRecord.Type == HitType.Interval &&
e.MouseEvent.Button == MouseButtons.None &&
!m_owner.IsUsingMouse &&
m_owner.IsEditable(e.HitRecord.HitPath))
{
SetCursor();
TimelinePath hitPath = e.HitRecord.HitPath;
IInterval hitObject = (IInterval)e.HitRecord.HitTimelineObject;
float worldX = GdiUtil.InverseTransform(m_owner.Transform, e.MouseEvent.Location.X);
//Make sure the snap-to indicator line is drawn.
float delta = m_owner.GetSnapOffset(new[] { worldX }, s_snapOptions);
worldX += delta;
worldX = m_owner.ConstrainFrameOffset(worldX);
Matrix localToWorld = TimelineControl.CalculateLocalToWorld(hitPath);
if (worldX <= GdiUtil.Transform(localToWorld, hitObject.Start) ||
worldX >= GdiUtil.Transform(localToWorld, hitObject.Start + hitObject.Length))
{
// Clear the results since a split is impossible.
m_owner.GetSnapOffset(new float[] { }, s_snapOptions);
}
else
{
toolTipText = worldX.ToString();
}
}
}
if (toolTipText != null)
{
m_toolTip.Show(toolTipText, m_owner, e.MouseEvent.Location);
}
else
{
m_toolTip.Hide(m_owner);
}
}
/// <summary>
/// Adds range of groups to selection, from anchor to given target.
/// Handles selecting a group, taking into account selecting ranges of groups.
/// If no anchor, just selects target.</summary>
/// <param name="target">Timeline path</param>
protected virtual void SelectGroups(TimelinePath target)
{
// Add range of groups, from anchor to target? Holding down Ctrl or Alt simultaneously
// still does a range selection in Visual Studio's Solution Explorer.
if ((Control.ModifierKeys & Keys.Shift) != Keys.None)
{
if (Anchor != null && Anchor.Last is IGroup && SelectionContext != null)
{
SelectionContext.SetRange(GetRangeOfGroups(Anchor, target));
return;
}
}
// simply add this target group, using the current modifier keys to determine how
Owner.Select <IGroup>(target);
}
/// <summary>
/// Event handler for the TimelineControl.MouseDownPicked event</summary>
/// <param name="sender">The TimelineControl that we are attached to</param>
/// <param name="e">HitEventArgs</param>
protected virtual void Owner_MouseDownPicked(object sender, HitEventArgs e)
{
HitRecord hitRecord = e.HitRecord;
TimelinePath hitObject = hitRecord.HitPath;
if (hitObject != null)
{
Keys modifiers = Control.ModifierKeys;
if (e.MouseEvent.Button == MouseButtons.Left)
{
if (modifiers == Keys.None && SelectionContext != null &&
SelectionContext.SelectionContains(hitObject))
{
// The hit object is already selected. Wait until the mouse up to see if there was
// a drag or not. If no drag, then set the selection set to be this one object.
m_mouseDownHitRecord = hitRecord;
m_mouseDownPos = e.MouseEvent.Location;
}
else if (modifiers == Keys.Control)
{
// Either this object is not already selected or Shift key is being held down.
// to be consistent with the Windows interface.
m_mouseDownHitRecord = hitRecord;
m_mouseDownPos = e.MouseEvent.Location;
}
else if ((modifiers & Keys.Alt) == 0)
{
// The 'Alt' key might mean something different. If no Alt key, we can update the
// selection immediately.
UpdateSelection(hitRecord, modifiers);
}
}
else if (e.MouseEvent.Button == MouseButtons.Right)
{
if (modifiers == Keys.None && SelectionContext != null &&
!SelectionContext.SelectionContains(hitObject))
{
// The hit object is not already selected and a right-click landed on it. Select it.
UpdateSelection(hitRecord, modifiers);
}
}
}
}
// get track that contains y value
private TimelinePath GetTargetTrack(
float y,
TimelineLayout layout,
IList <ITrack> tracks)
{
TimelinePath testPath = new TimelinePath((ITimelineObject)null);
foreach (ITrack track in tracks)
{
testPath.Last = track;
RectangleF targetBounds = layout[testPath];
if (targetBounds.Top <= y && targetBounds.Bottom >= y)
{
return(testPath);
}
}
return(null);
}
/// <summary>
/// Updates the selection set, given the hit object and the modifier keys</summary>
/// <param name="hitRecord">HitRecord</param>
/// <param name="modifiers">Modifier keys</param>
private void UpdateSelection(HitRecord hitRecord, Keys modifiers)
{
TimelinePath hitObject = hitRecord.HitPath;
bool hitIsValidAnchor = true;
switch (hitRecord.Type)
{
case HitType.GroupMove:
SelectGroups(hitObject);
break;
case HitType.TrackMove:
SelectTracks(hitObject);
break;
case HitType.Interval:
case HitType.Key:
case HitType.Marker:
SelectEvents(hitObject);
Owner.Constrain = (modifiers & Owner.ConstrainModifierKeys) != 0;
break;
default:
Anchor = null;
hitIsValidAnchor = false;
break;
}
if (hitIsValidAnchor)
{
// If the Shift key is not held down or the current Anchor is null, or the user
// has switched between track and group, or the user has picked an event, then
// update the Anchor. IEvents are always additive with the shift key.
if ((modifiers & Keys.Shift) == 0 ||
Anchor == null ||
(Anchor.Last is IGroup && hitObject.Last is ITrack) ||
(Anchor.Last is ITrack && hitObject.Last is IGroup) ||
(Anchor.Last is IEvent && hitObject.Last is IEvent))
{
Anchor = hitObject;
}
}
}
// private because this may be moved to TimelineControl
private TimelinePath GetOwningTrack(TimelinePath begin)
{
if (begin.Last is IKey)
{
TimelinePath trackPath = new TimelinePath(begin);
trackPath.Last = ((IKey)begin.Last).Track;
return(trackPath);
}
if (begin.Last is IInterval)
{
TimelinePath trackPath = new TimelinePath(begin);
trackPath.Last = ((IInterval)begin.Last).Track;
return(trackPath);
}
if (begin.Last is ITrack)
{
return(begin);
}
return(null);
}
// private because this may be moved to TimelineControl
private bool Overlaps(TimelinePath path, float beginTime, float endTime)
{
IEvent e = (IEvent)path.Last;
Matrix localToWorld = TimelineControl.CalculateLocalToWorld(path);
float start = GdiUtil.Transform(localToWorld, e.Start);
float length = GdiUtil.TransformVector(localToWorld, e.Length);
// If the length is zero, then count an exact match with beginTime or endTime as
// being an overlap.
if (length == 0)
{
return(!(
start > endTime ||
start + length < beginTime));
}
// Otherwise, don't count an exact match.
return(!(
start >= endTime ||
start + length <= beginTime));
}
/// <summary>
/// Gets the range of tracks from 'begin' to 'end', inclusive, as determined by the order
/// that they are presented by the ITimelineDocument. The result always has 'begin'
/// as the first ITimelineObject and 'end' as the last. If 'begin' and 'end' are the same,
/// then the result has only the one ITimelineObject.</summary>
/// <param name="begin">Beginning timeline path</param>
/// <param name="end">Ending timeline path</param>
/// <returns>Enumeration of timeline paths in the given range.
/// A timeline path is a sequence of objects in timelines, e.g., groups, tracks, events.</returns>
protected virtual IEnumerable <TimelinePath> GetRangeOfTracks(TimelinePath begin, TimelinePath end)
{
TimelinePath lastTrackToFind = null;
List <TimelinePath> range = new List <TimelinePath>();
foreach (TimelinePath track in Owner.AllTracks)
{
if (lastTrackToFind == null)
{
if (track == begin)
{
lastTrackToFind = end;
}
else if (track == end)
{
lastTrackToFind = begin;
}
}
if (lastTrackToFind != null)
{
range.Add(track);
}
if (track == lastTrackToFind)
{
break;
}
}
if (lastTrackToFind == begin)
{
range.Reverse();
}
return(range);
}
private void owner_MouseDownPicked(object sender, HitEventArgs e)
{
TimelinePath hitPath = e.HitRecord.HitPath;
IInterval hitInterval = e.HitRecord.HitTimelineObject as IInterval;
if (m_active &&
e.MouseEvent.Button == MouseButtons.Left &&
!m_owner.IsUsingMouse &&
m_owner.IsEditable(hitPath))
{
if (hitInterval != null &&
e.HitRecord.Type == HitType.Interval)
{
float worldX =
Sce.Atf.GdiUtil.InverseTransform(m_owner.Transform, e.MouseEvent.Location.X);
worldX += m_owner.GetSnapOffset(new[] { worldX }, s_snapOptions);
Matrix localToWorld = TimelineControl.CalculateLocalToWorld(hitPath);
float fraction =
(worldX - GdiUtil.Transform(localToWorld, hitInterval.Start)) /
GdiUtil.TransformVector(localToWorld, hitInterval.Length);
if (m_owner.Selection.SelectionContains(hitInterval))
{
SplitSelectedIntervals(fraction);
}
else
{
SplitUnselectedInterval(hitInterval, fraction);
}
}
Active = false;
e.Handled = true; //don't let subsequent listeners get this event
}
}
/// <summary>
/// Gets the range of groups from 'begin' to 'end', inclusive, as determined by the order
/// that they are presented by the ITimelineDocument. The result always has 'begin'
/// as the first ITimelineObject and 'end' as the last. If 'begin' and 'end' are the same,
/// then the result has only the one ITimelineObject.</summary>
/// <param name="begin">Beginning timeline path</param>
/// <param name="end">Ending timeline path</param>
/// <returns>Enumeration of timeline paths in the given range.
/// A timeline path is a sequence of objects in timelines, e.g., groups, tracks, events.</returns>
protected virtual IEnumerable <TimelinePath> GetRangeOfGroups(TimelinePath begin, TimelinePath end)
{
TimelinePath lastGroupToFind = null;
List <TimelinePath> range = new List <TimelinePath>();
foreach (TimelinePath group in Owner.AllGroups)
{
if (lastGroupToFind == null)
{
if (group == begin)
{
lastGroupToFind = end;
}
else if (group == end)
{
lastGroupToFind = begin;
}
}
if (lastGroupToFind != null)
{
range.Add(group);
}
if (group == lastGroupToFind)
{
break;
}
}
if (lastGroupToFind == begin)
{
range.Reverse();
}
return(range);
}
// gets move information, for drawing ghosts and for performing actual move operation
private GhostInfo[] GetMoveGhostInfo(Matrix worldToView, TimelineLayout layout)
{
// get start and y offsets in timeline space
PointF dragOffset = m_owner.GetDragOffset();
// Get snapping points along the timeline (in world coordinates).
List <float> movingPoints = new List <float>(2);
TimelinePath snapperPath;
if (m_mouseMoveHitRecord != null)
{
snapperPath = m_mouseMoveHitRecord.HitPath;//use the last clicked event (interval, key or marker)
}
else
{
snapperPath = m_owner.Selection.LastSelected as TimelinePath;//moving a group or track, for example
}
IEvent snapperEvent = snapperPath != null ? snapperPath.Last as IEvent : null;
if (snapperEvent != null)
{
Matrix localToWorld = TimelineControl.CalculateLocalToWorld(snapperPath);
float worldStart = GdiUtil.Transform(localToWorld, snapperEvent.Start + dragOffset.X);
movingPoints.Add(worldStart);
if (snapperEvent.Length > 0.0f)
{
movingPoints.Add(GdiUtil.Transform(localToWorld, snapperEvent.Start + dragOffset.X + snapperEvent.Length));
}
}
// Get the offset from one of the world snap points to the closest non-selected object.
float snapOffset;
try
{
s_snapOptions.FilterContext = snapperEvent;
s_snapOptions.Filter = new TimelineControl.SnapFilter(MoveSnapFilter);
snapOffset = m_owner.GetSnapOffset(movingPoints, s_snapOptions);
}
finally
{
s_snapOptions.FilterContext = null;
s_snapOptions.Filter = null;
}
// adjust dragOffset to "snap-to" nearest event
dragOffset.X += snapOffset;
// get offsets in client space
float xOffset = dragOffset.X * worldToView.Elements[0];
float yOffset = dragOffset.Y * worldToView.Elements[3];
TimelinePath[] targets = GetMoveTargets(layout);
GhostInfo[] ghosts = new GhostInfo[targets.Length];
int i = -1;
foreach (TimelinePath path in m_owner.Selection.Selection)
{
i++;
ITimelineObject timelineObject = path.Last;
RectangleF bounds = layout[path];
TimelinePath targetPath = targets[i];
ITimelineObject target = targetPath != null ? targetPath.Last : null;
float start = 0;
float length = 0;
bool valid = true;
IInterval interval = timelineObject as IInterval;
IKey key = timelineObject as IKey;
IMarker marker = timelineObject as IMarker;
ITrack track = timelineObject as ITrack;
IGroup group = timelineObject as IGroup;
ITimelineReference reference = timelineObject as ITimelineReference;
if (interval != null)
{
ITrack targetTrack = target as ITrack;
start = interval.Start + dragOffset.X;
length = interval.Length;
valid =
targetTrack != null &&
m_owner.Constraints.IsStartValid(interval, ref start) &&
m_owner.Constraints.IsLengthValid(interval, ref length);
if (valid)
{
yOffset = layout[target].Y - layout[interval.Track].Y;
TimelinePath testPath = new TimelinePath(targetPath);
foreach (IInterval other in targetTrack.Intervals)
{
// skip selected intervals, since they are moving too
testPath.Last = other;
if (m_owner.Selection.SelectionContains(testPath))
{
continue;
}
if (!m_owner.Constraints.IsIntervalValid(interval, ref start, ref length, other))
{
valid = false;
break;
}
}
}
}
else if (reference != null)
{
// don't allow for vertical repositioning yet
start = reference.Start + dragOffset.X;
valid = true;
}
else if (key != null)
{
start = key.Start + dragOffset.X;
ITrack targetTrack = target as ITrack;
valid =
targetTrack != null &&
m_owner.Constraints.IsStartValid(key, ref start);
if (valid)
{
yOffset = layout[targetTrack].Y - layout[key.Track].Y;
}
}
else if (marker != null)
{
start = marker.Start + dragOffset.X;
yOffset = 0;
valid = m_owner.Constraints.IsStartValid(marker, ref start);
}
else if (track != null)
{
xOffset = 0;
if (target == null)
{
target =
(m_owner.DragDelta.Y < 0) ? GetLastTrack() : GetFirstTrack();
}
}
else if (group != null)
{
xOffset = 0;
if (target == null)
{
IList <IGroup> groups = m_owner.TimelineDocument.Timeline.Groups;
target = (m_owner.DragDelta.Y < 0) ? groups[0] : groups[groups.Count - 1];
}
}
bounds.Offset(xOffset, yOffset);
ghosts[i] = new GhostInfo(timelineObject, target, start, length, bounds, valid);
}
return(ghosts);
}
/// <summary>
/// Gets the range of events that intersect the rectangle that encloses 'begin' and 'end'</summary>
/// <param name="begin">Beginning timeline path</param>
/// <param name="end">Ending timeline path</param>
/// <returns>Enumeration of timeline paths that intersect the rectangle.
/// A timeline path is a sequence of objects in timelines, e.g., groups, tracks, events.</returns>
protected virtual IEnumerable <TimelinePath> GetRangeOfEvents(TimelinePath begin, TimelinePath end)
{
// Get the range of tracks between these two events.
bool searchMarkers = false;
System.Collections.IEnumerable rangeOfTracks;
if (begin.Last is IMarker || end.Last is IMarker)
{
rangeOfTracks = Owner.AllTracks;
searchMarkers = true;
}
else
{
TimelinePath beginTrack = GetOwningTrack(begin);
TimelinePath endTrack = GetOwningTrack(end);
rangeOfTracks = GetRangeOfTracks(beginTrack, endTrack);
}
// Get the range of times to look for.
float beginStart, beginEnd;
TimelineControl.CalculateRange(begin, out beginStart, out beginEnd);
float endStart, endEnd;
TimelineControl.CalculateRange(end, out endStart, out endEnd);
float beginTime = Math.Min(beginStart, endStart);
float endTime = Math.Max(beginEnd, endEnd);
// Look through all the IEvents of these tracks.
List <TimelinePath> range = new List <TimelinePath>();
foreach (TimelinePath testPath in rangeOfTracks)
{
ITrack track = (ITrack)testPath.Last;
foreach (IKey key in track.Keys)
{
testPath.Last = key;
if (Overlaps(testPath, beginTime, endTime))
{
range.Add(new TimelinePath(testPath));
}
}
foreach (IInterval interval in track.Intervals)
{
testPath.Last = interval;
if (Overlaps(testPath, beginTime, endTime))
{
range.Add(new TimelinePath(testPath));
}
}
}
// Look for markers?
if (searchMarkers)
{
foreach (TimelinePath testPath in Owner.AllMarkers)
{
if (Overlaps(testPath, beginTime, endTime))
{
range.Add(testPath);
}
}
}
return(range);
}
// gets objects of appropriate type that are underneath the moving selected objects
private TimelinePath[] GetMoveTargets(TimelineLayout layout)
{
// get groups and visible tracks
List <IGroup> groups = new List <IGroup>();
List <ITrack> visibleTracks = new List <ITrack>();
foreach (IGroup group in m_owner.TimelineDocument.Timeline.Groups)
{
groups.Add(group);
IList <ITrack> tracks = group.Tracks;
bool expanded = group.Expanded;
bool collapsible = tracks.Count > 1;
bool collapsed = collapsible && !expanded;
if (!collapsed)
{
foreach (ITrack track in tracks)
{
visibleTracks.Add(track);
}
}
}
TimelinePath[] targets = new TimelinePath[m_owner.Selection.SelectionCount];
RectangleF bounds;
TimelinePath testPath = new TimelinePath((ITimelineObject)null);
int i = -1;
foreach (TimelinePath path in m_owner.Selection.Selection)
{
i++;
IGroup group = path.Last as IGroup;
if (group != null)
{
foreach (IGroup targetGroup in groups)
{
Point p = m_owner.DragPoint;
testPath.Last = targetGroup;
RectangleF targetBounds = layout[testPath];
if (targetBounds.Top <= p.Y && targetBounds.Bottom >= p.Y)
{
targets[i] = new TimelinePath(testPath);
break;
}
}
continue;
}
ITrack track = path.Last as ITrack;
if (track != null)
{
foreach (ITrack targetTrack in visibleTracks)
{
Point p = m_owner.DragPoint;
testPath.Last = targetTrack;
RectangleF targetBounds = layout[testPath];
if (targetBounds.Top <= p.Y && targetBounds.Bottom >= p.Y)
{
targets[i] = new TimelinePath(testPath);
break;
}
}
continue;
}
IInterval interval = path.Last as IInterval;
if (interval != null)
{
track = interval.Track;
if (track != null)
{
testPath.Last = track;
bounds = layout[testPath];
float y = bounds.Top + bounds.Height * 0.5f + m_owner.DragDelta.Y;
targets[i] = GetTargetTrack(y, layout, visibleTracks);
continue;
}
}
IKey key = path.Last as IKey;
if (key != null)
{
track = key.Track;
if (track != null)
{
testPath.Last = track;
bounds = layout[testPath];
float y = bounds.Top + bounds.Height * 0.5f + m_owner.DragDelta.Y;
targets[i] = GetTargetTrack(y, layout, visibleTracks);
continue;
}
}
// ignore Markers, as they don't hit targets
}
return(targets);
}
/// <summary>
/// Creates and caches resize information, for drawing ghosts and for performing
/// actual resize operations</summary>
/// <param name="layout">TimelineLayout</param>
/// <param name="worldDrag">Drag offset</param>
/// <param name="worldToView">World to view transformation matrix</param>
/// <returns>Array of GhostInfo</returns>
internal GhostInfo[] CreateGhostInfo(TimelineLayout layout, float worldDrag, Matrix worldToView)
{
// Get snap-from point in world coordinates.
float[] movingPoints = new[] { worldDrag + m_originalBoundary };
float snapOffset = m_owner.GetSnapOffset(movingPoints, null);
// adjust dragOffset to snap-to nearest event
worldDrag += snapOffset;
DragOffsetWithSnap = worldDrag;
GhostInfo[] ghosts = new GhostInfo[m_selection.Count];
IEnumerator <TimelinePath> events = m_selection.GetEnumerator();
m_worldGhostMin = float.MaxValue;
m_worldGhostMax = float.MinValue;
for (int i = 0; i < ghosts.Length; i++)
{
events.MoveNext();
IEvent curr = (IEvent)events.Current.Last;
RectangleF bounds = layout[events.Current];
float viewStart = bounds.Left;
float viewEnd = viewStart + bounds.Width;
float worldStart = curr.Start;
float worldEnd = worldStart + curr.Length;
Resize(
worldDrag,
worldToView,
ref viewStart, ref viewEnd,
ref worldStart, ref worldEnd);
float worldLength = worldEnd - worldStart;
bounds = new RectangleF(viewStart, bounds.Y, viewEnd - viewStart, bounds.Height);
if (m_worldGhostMin > worldStart)
{
m_worldGhostMin = worldStart;
}
if (m_worldGhostMax < worldEnd)
{
m_worldGhostMax = worldEnd;
}
bool valid = true;
IInterval interval = curr as IInterval;
if (interval != null)
{
TimelinePath testPath = new TimelinePath(events.Current);
foreach (IInterval other in interval.Track.Intervals)
{
// Skip this interval if it's part of the selection because we have to assume
// that the track began in a valid state and that all of the selected objects
// will still be valid relative to each other. We only need to check that the
// scaled objects are valid relative to the stationary objects.
testPath.Last = other;
if (Mode == ScaleMode.TimePeriod &&
m_selection.Contains(testPath))
{
continue;
}
else if (other == interval)
{
continue;
}
if (!m_owner.Constraints.IsIntervalValid(interval, ref worldStart, ref worldLength, other))
{
valid = false;
break;
}
}
}
ghosts[i] = new GhostInfo(curr, null, worldStart, worldLength, bounds, valid);
}
m_ghosts = ghosts;
return(ghosts);
}