internal void FireEventCreated(
FrameworkElement element,
TimelineDisplayEvent de
)
{
OnEventCreated?.Invoke(element, de);
}
public object CreateEvent(
TimelineEvent e,
TimelineDisplayEvent de
)
{
FrameworkElement element;
Debug.Assert(e != null);
if (m_elementPool.Count == 0)
{
element = CreateEventElement() as FrameworkElement;
}
else
{
element = m_elementPool.Pop() as FrameworkElement;
}
element.DataContext = de;
element.SetValue(Canvas.ZIndexProperty, (e.Row + 1) * MIN_EVENT_ZINDEX);
m_canvas.Children.Add(element);
if (m_parent.IsMainBand)
{
m_parent.TimelineTray.FireEventCreated(element, de);
m_parent.FireEventCreated(element, de);
}
return(element);
}
internal void FireEventCreated(
TimelineDisplayEvent de
)
{
if (OnEventCreated != null)
{
OnEventCreated(de);
}
}
internal void FireOnEventVisible(
FrameworkElement element,
TimelineDisplayEvent de
)
{
if (OnEventVisible != null)
{
OnEventVisible(element, de);
}
}
internal void FireEventCreated(
FrameworkElement element,
TimelineDisplayEvent de
)
{
if (OnEventCreated != null)
{
OnEventCreated(element, de);
}
}
///
/// <summary>
/// Calculate top position and width of each event</summary>
///
public void CalculateEventPositions(
)
{
TimelineDisplayEvent pos;
Debug.Assert(m_events != null);
if (m_dispEvents == null)
{
return;
}
Utilities.Trace(this);
foreach (TimelineEvent e in m_events)
{
if (!m_dispEvents.ContainsKey(e))
{
pos = new TimelineDisplayEvent(e, m_parent.TimelineTray, this);
if (m_savedDispEvents != null && m_savedDispEvents.ContainsKey(e))
{
pos.Selected = m_savedDispEvents[e].Selected;
if (pos.Selected && !string.IsNullOrEmpty(TimelineDisplayEvent.SelectedEventImageUrl))
{
m_savedDispEvents[e].Event.TeaserEventImage = e.TeaserEventImage;
e.TeaserEventImage = TimelineDisplayEvent.SelectedEventImageUrl;
}
else if (!pos.Selected)
{
e.TeaserEventImage = m_savedDispEvents[e].Event.TeaserEventImage;
}
}
m_dispEvents.Add(e, pos);
}
else
{
pos = m_dispEvents[e];
}
Debug.Assert(e.Row >= 0, "Need first call CalculateEventRows for main band");
if (pos.Top == -1 || pos.TimelineTray.RecalculateEventTopPosition)
{
pos.SetCalculatedTop(e.Row * m_maxEventHeight + TOP_MARGIN);
}
pos.ActualEventPixelWidth = TimeSpanToPixels(e.EndDate - e.StartDate);
pos.ActualEventPixelWidth = Math.Max(3.0, pos.ActualEventPixelWidth);
pos.EventPixelWidth = Math.Min(PixelWidth * 2, pos.ActualEventPixelWidth);
}
}
///
/// <summary>
/// Once visual element is deleted we mark that there are no currently
/// playing videos</summary>
///
private void OnEventDeleted(
FrameworkElement element,
TimelineLibrary.TimelineDisplayEvent de
)
{
MediaElement me;
me = element.FindName("MediaPlayer") as MediaElement;
if (me == m_playing && me != null)
{
m_playing.Stop();
m_playing = null;
}
}
///
/// <summary>
/// Calculate top position and width of each event</summary>
///
public void CalculateEventPositions(
)
{
TimelineDisplayEvent pos;
double maxWidth = 0;
Debug.Assert(AllEvents != null);
if (m_dispEvents == null)
{
return;
}
Utilities.Trace(this);
foreach (TimelineEvent e in AllEvents)
{
if (!m_dispEvents.ContainsKey(e))
{
pos = new TimelineDisplayEvent(e, m_parent.TimelineTray, this);
m_dispEvents.Add(e, pos);
}
else
{
pos = m_dispEvents[e];
}
Debug.Assert(e.Row >= 0, "Need first call CalculateEventRows for main band");
if (pos.Top == -1 || pos.TimelineTray.RecalculateEventTopPosition)
{
pos.SetCalculatedTop(e.Row * m_maxEventHeight + TOP_MARGIN);
}
pos.ActualEventPixelWidth = TimeSpanToPixels(e.EndDate - e.StartDate);
pos.ActualEventPixelWidth = Math.Max(3.0, pos.ActualEventPixelWidth);
pos.EventPixelWidth = Math.Min(PixelWidth * 2, pos.ActualEventPixelWidth);
maxWidth = Math.Max(maxWidth, pos.DescriptionWidth);
}
m_maxDescriptionWidth = PixelsToTimeSpan(maxWidth);
}
/// <summary>
/// Calculate top position and width of each event</summary>
public void CalculateEventPositions()
{
TimelineDisplayEvent pos;
Debug.Assert(AllEvents != null);
if (m_dispEvents == null)
{
return;
}
Utilities.Trace(this);
TimeSpan ts = new TimeSpan();
foreach (TimelineEvent e in AllEvents)
{
if (!m_dispEvents.ContainsKey(e))
{
pos = new TimelineDisplayEvent(e, m_parent.TimelineTray, this);
m_dispEvents.Add(e, pos);
}
else
{
pos = m_dispEvents[e];
}
Debug.Assert(e.Row >= 0, "Need first call CalculateEventRows for main band");
if (pos.Top == -1 || pos.TimelineTray.RecalculateEventTopPosition)
{
pos.SetCalculatedTop(e.Row * m_maxEventHeight + TOP_MARGIN);
}
pos.Recalculate(false);
ts = (e.EndDate - e.StartDate);
}
m_maxDescriptionWidth = ts;
}
public object CreateEvent(
TimelineEvent e,
TimelineDisplayEvent de
)
{
FrameworkElement element;
DependencyObject obj;
Button link;
Debug.Assert(e != null);
obj = m_eventTemplate.LoadContent();
element = (FrameworkElement)obj;
element.MouseEnter += OnMouseEnter;
element.MouseLeave += OnMouseLeave;
element.DataContext = de;
if (m_parent.IsMainBand)
{
element.MouseLeftButtonDown += OnLeftButtonDown;
}
element.SetValue(Canvas.ZIndexProperty, (e.Row + 1) * MIN_EVENT_ZINDEX);
link = (Button)element.FindName("EventLinkTextBlock");
if (link != null)
{
link.Click += m_parent.OnMoreInfoClick;
}
m_canvas.Children.Add(element);
if (m_parent.IsMainBand)
{
m_parent.TimelineTray.FireEventCreated(element, de);
}
return(element);
}
///
/// <summary>
/// After current data is changed this function fixes positions of all columns
/// and all events</summary>
///
private void FixPositions(
bool displayEvents,
bool animate = false,
bool updateDuration = false
)
{
double startLeft;
double posOffset;
int colcount;
long newStart;
long idxOffset;
colcount = (m_columnCount + EXTRA_COLUMNS);
posOffset = TimeSpanToPixels(CurrentDateTime - m_timeline.GetFloorTime(CurrentDateTime));
newStart = m_timeline.IndexOf(CurrentDateTime) - colcount / 2;
startLeft = (PixelWidth / 2 - ColumnPixelWidth * (colcount / 2)) - posOffset;
if (m_startIndex == INVALID_COLUMN_IDX || newStart > m_startIndex + colcount || newStart + colcount < m_startIndex)
{
//
// this is case when we draw columns for the first time, or there are no columns which data contexts
// may be reused
//
PositionColumnAndMarker(newStart, startLeft, 0, true, null);
}
else if (m_startIndex == newStart)
{
//
// this is the case when we reuse existing column context (date string)
//
PositionColumnAndMarker(newStart, startLeft, 0, false, null);
}
else
{
idxOffset = m_startIndex - newStart;
ShiftArray(m_columns, idxOffset, out m_columns);
ShiftArray(m_columnMarkers, idxOffset, out m_columnMarkers);
PositionColumnAndMarker(newStart, startLeft, 0, false, null);
if (idxOffset > 0)
{
for (int i = 0; i < idxOffset; ++i)
{
SetColumnDataContext(newStart + i, i);
}
}
else
{
for (int i = colcount + (int)idxOffset; i < colcount; ++i)
{
SetColumnDataContext(newStart + i, i);
}
}
}
m_startIndex = Math.Max(0, newStart);
if (displayEvents)
{
DisplayEvents(animate);
}
if (updateDuration)
{
foreach (var ve in m_visibleEvents)
{
var evnt = ve.Key;
TimelineDisplayEvent tde = m_dispEvents[evnt];
tde.Recalculate();
}
}
}
///
/// <summary>
/// Once visual element is deleted we mark that there are no currently
/// playing videos</summary>
///
private new void OnEventDeleted(
FrameworkElement element,
TimelineLibrary.TimelineDisplayEvent de
)
{
}
internal void FireOnEventVisible(FrameworkElement element, TimelineDisplayEvent de)
{
OnEventVisible?.Invoke(element, de);
}
internal void FireOnEventVisible(
FrameworkElement element,
TimelineDisplayEvent de
)
{
if (OnEventVisible != null)
{
OnEventVisible(element, de);
}
}
internal void FireEventDeleted(
FrameworkElement element,
TimelineDisplayEvent de
)
{
if (OnEventDeleted != null)
{
OnEventDeleted(element, de);
}
}
///
/// <summary>
/// This event fires when event is about to be displayed on the screen,
/// we attach event handlers to stop/play mediaplayer link here</summary>
///
void OnEventCreated(
FrameworkElement element,
TimelineDisplayEvent de
)
{
MediaElement me;
TimelineLibrary.Hyperlink link;
me = element.FindName("MediaPlayer") as MediaElement;
link = element.FindName("StopPlayButton") as TimelineLibrary.Hyperlink;
if (me != null && link != null)
{
link.Tag = me;
link.Click += new RoutedEventHandler(OnButtonClick);
me.MediaEnded += new RoutedEventHandler(OnMediaEnded);
me.Tag = false;
}
}
///
/// <summary>
/// Once new visual element is created for timeline event we attach
/// event handlers to it's elements</summary>
///
private new void OnEventCreated(
FrameworkElement element,
TimelineDisplayEvent de
)
{
Grid b;
Border bsize;
Border bdescr;
Border bduration;
Hyperlink hlink;
b = element.FindName("EventTemplateRoot") as Grid;
bsize = element.FindName("ResizeButton") as Border;
bdescr = element.FindName("EventDescriptionBorder") as Border;
bduration = element.FindName("DurationChangeBorder") as Border;
hlink = element.FindName("EditButton") as Hyperlink;
if (hlink != null)
{
hlink.Click += OnEditClick;
hlink.Tag = de;
}
if (bdescr != null)
{
bdescr.MouseLeftButtonDown += CaptureMouse;
bdescr.MouseLeftButtonUp += ReleaseMouse;
bdescr.MouseMove += OnDescriptionMouseMove;
bdescr.Tag = element;
}
if (bduration != null)
{
bduration.MouseLeftButtonDown += CaptureMouse;
bduration.MouseLeftButtonUp += ReleaseMouse;
bduration.MouseMove += OnBDurationMouseMove;
bduration.Tag = element;
}
if (bsize != null)
{
bsize.MouseLeftButtonDown += CaptureMouse;
bsize.MouseLeftButtonUp += ReleaseMouse;
bsize.MouseMove += OnResizeMouseMove;
bsize.Tag = b;
}
}
