/// <summary>
/// Clears all children of UI objects and rebuilds the timeline.
/// </summary>
public void RebuildTimeline()
{
toggledNodes.Clear();
foreach (Object child in Timelines.Children)
{
if (child is TimelinePanel) // Only TimelinePanel objects since Timelines also contains separating lines
{
TimelinePanel timeline = (TimelinePanel)child;
timeline.Children.Clear();
}
}
foreach (Object child in Blocks.Children)
{
if (child is TimelinePanel) // Only TimelinePanel objects since Timelines also contains separating lines
{
TimelinePanel blockPanel = (TimelinePanel)child;
blockPanel.Children.Clear();
}
}
Timelines.Children.Clear();
Ticks.Children.Clear();
TicksBar.Children.Clear();
TimeStamps.Children.Clear();
Blocks.Children.Clear();
eventTypeList.Clear();
eventUserList.Clear();
BuildTimeline();
}
/// <summary>
/// Draws ticks below the nodes to represent the seconds of each timeline interval
/// </summary>
/// <param name="beginDate">begin date of a timeline period</param>
/// <param name="endDate"> end date of a timeline period</param>
private void AddTicks(DateTime beginDate, DateTime endDate)
{
TimelinePanel timelinePanel = MakeTimelinePanel(beginDate, endDate);
AddTicksBar(beginDate, endDate);
int timePeriod = (int)endDate.Subtract(beginDate).TotalSeconds;
for (int i = 0; i < timePeriod; i++)
{
Line tick = new Line();
tick.Stroke = Brushes.Black;
tick.X1 = 10;
tick.X2 = 10;
tick.Y1 = 0;
tick.Y2 = 20;
tick.StrokeThickness = 1;
TimelinePanel.SetDate(tick, beginDate);
timelinePanel.Children.Add(tick);
beginDate = beginDate.AddSeconds(1);
}
Ticks.Children.Add(timelinePanel);
Line separationLine = MakeTimelineSeparatingLine();
separationLine.Visibility = Visibility.Hidden; // Hidden since this line is added only for proper spacing
Ticks.Children.Add(separationLine);
}
/// <summary>
/// Creates a TimelinePanel for Blocks
/// </summary>
/// <param name="beginDate">begin date of timeline</param>
/// <param name="endDate">end date of timeline</param>
/// <returns>TimelinePanel that can space Blocks according to time</returns>
private TimelinePanel MakeBlockPanel(DateTime beginDate, DateTime endDate)
{
TimelinePanel timelinePanel = new TimelinePanel
{
UnitTimeSpan = new TimeSpan(0, 0, 0, 10),
UnitSize = 200,
BeginDate = beginDate,
EndDate = endDate,
KeepOriginalOrderForOverlap = true
};
return(timelinePanel);
}
/// <summary>
/// Creates a TimelinePanel
/// </summary>
/// <param name="beginDate">begin date of timeline</param>
/// <param name="endDate">end date of timeline</param>
/// <returns>TimelinePanel that can space graphical objects according to time</returns>
private TimelinePanel MakeTimelinePanel(DateTime beginDate, DateTime endDate)
{
TimelinePanel timelinePanel = new TimelinePanel
{
UnitTimeSpan = new TimeSpan(0, 0, 0, 1),
UnitSize = App.nodeCollection.nodeList[0].Width,
BeginDate = beginDate,
EndDate = endDate,
KeepOriginalOrderForOverlap = true
};
return(timelinePanel);
}
/// <summary>
/// Draws a line to connect a node to a timeline
/// </summary>
/// <param name="timelinePanel">timeline panel to hold and position connection lines</param>
/// <param name="eventTime">time used as position for where to draw a connecting line</param>
private void ConnectNodeToTimeline(TimelinePanel timelinePanel, DateTime eventTime)
{
Line connectorLine = new Line();
connectorLine.Stroke = Brushes.LightSteelBlue;
connectorLine.X1 = 10;
connectorLine.X2 = 10;
connectorLine.Y1 = 0;
connectorLine.Y2 = 15;
connectorLine.StrokeThickness = 1;
TimelinePanel.SetDate(connectorLine, eventTime);
timelinePanel.Children.Add(connectorLine);
}
/// <summary>
/// Creates a timeline with the given events and adds it to the UI.
/// </summary>
/// <param name="nodesCluster">list of events that belong in 1 timeline</param>
private void AddTimeline(List <Node.Node> nodesCluster)
{
DateTime beginDate = DateTimeRoundDown(nodesCluster[0].aEvent.EventTime, maxRealTimeSpan);
DateTime endDate = beginDate.AddMinutes(1);
TimelinePanel timelinePanel = MakeTimelinePanel(beginDate, endDate);
TimelinePanel blockPanel = MakeBlockPanel(beginDate, endDate);
List <StackedNodes> stackedNodesList = GetStackedNodes(nodesCluster);
// Add all nodes that stack onto a timeline
foreach (StackedNodes stackedNode in stackedNodesList)
{
stackedNode.Click += DotPress;
stackedNode.MouseEnter += HoverStackedNodes;
stackedNode.MouseLeave += HoverStackedNodes;
stackedNode.Style = (Style)Resources["StackedNode"];
TimelinePanel.SetDate(stackedNode, stackedNode.events[0].EventTime);
stackedNode.Content = stackedNode.events.Count.ToString();
allNodes.Add(stackedNode);
timelinePanel.Children.Add(stackedNode);
ConnectNodeToTimeline(timelinePanel, stackedNode.events[0].EventTime);
// Adds invisible blocks as padding for a nice vertical allignment.
int numBlocksNeeded = maxStackedNodes - stackedNode.nodes.Count;
TextBlock alignmentBlock = new TextBlock
{
Style = (Style)Resources["TimelineBlock"],
Visibility = Visibility.Collapsed,
Height = numBlocksNeeded * 70
};
stackedNode.alignmentBlock = alignmentBlock;
TimelinePanel.SetDate(stackedNode.alignmentBlock, stackedNode.nodes[0].GetBlockTime());
blockPanel.Children.Add(stackedNode.alignmentBlock);
// Adds the actual node blocks
foreach (Node.Node node in stackedNode.nodes)
{
node.IsChecked = false;
node.block.Style = (Style)Resources["TimelineBlock"];
TimelinePanel.SetDate(node.block, node.GetBlockTime());
blockPanel.Children.Add(node.block);
}
}
// Add all other nodes onto a timeline
foreach (Node.Node node in nodesCluster)
{
node.MouseEnter -= HoverNode;
node.MouseLeave -= HoverNode;
node.MouseEnter += HoverNode;
node.MouseLeave += HoverNode;
TimelinePanel.SetDate(node, node.aEvent.EventTime);
allNodes.Add(node);
timelinePanel.Children.Add(node);
ConnectNodeToTimeline(timelinePanel, node.aEvent.EventTime);
// Adds invisible block as padding for a nice vertical allignment.
TextBlock alignmentBlock = new TextBlock
{
Style = (Style)Resources["TimelineBlock"],
Visibility = Visibility.Collapsed,
Height = (maxStackedNodes - 1) * 70
};
node.alignmentBlock = alignmentBlock;
TimelinePanel.SetDate(node.alignmentBlock, node.GetBlockTime());
blockPanel.Children.Add(node.alignmentBlock);
// Adds the actual node blocks
node.IsChecked = false;
node.block.Style = (Style)Resources["TimelineBlock"];
TimelinePanel.SetDate(node.block, node.GetBlockTime());
blockPanel.Children.Add(node.block);
}
Timelines.Children.Add(timelinePanel);
Blocks.Children.Add(blockPanel);
Line separationLine = MakeTimelineSeparatingLine();
Line blockSeperation = MakeBlockPanelSeparation();
Blocks.Children.Add(blockSeperation);
Timelines.Children.Add(separationLine);
AddTicks(beginDate, endDate);
AddTimeStamp(beginDate, endDate);
}
