public void DrawFlowChart()
{
foreach (var p in allParticipants)
{
ParticipantInfoBlock pInfoBlock = ConstructParticipantInfoBlock(p);
allParticipantInfoBlock.Add(pInfoBlock);
parentPanelToDisplayOn.Controls.Add(pInfoBlock);
UpdateParticipantInfoPanelPosition(pInfoBlock);
}
}
private ParticipantInfoBlock ConstructParticipantInfoBlock(Participant p)
{
ParticipantInfoBlock pInfoBlock = new ParticipantInfoBlock(p);
int initialX = parentPanelToDisplayOn.Width;
int initialY = parentPanelToDisplayOn.Top + (parentPanelToDisplayOn.Height / 2);
pInfoBlock.Left = initialX;
pInfoBlock.Top = initialY;
return(pInfoBlock);
}
public void UpdateParticipantInfoPanelPosition(ParticipantInfoBlock pInfo)
{
if (pInfo == null)
{
throw new NullReferenceException("Participant pInfo is null");
}
Participant updatedParticipantValue = allParticipants.Find(p => p.UserName == pInfo.CurrentParticipant.UserName);
pInfo.CurrentParticipant = updatedParticipantValue;
Block newPos = CalculateParticipantInfoPositionInGrid(pInfo.CurrentParticipant);
newPos.IsOccupied = true;
pInfo.block = newPos;
pInfo.UpdateBlockColor(newPos.BlockColor);
pInfo.NewPosition = new Point(newPos.BlockPosition.X, newPos.BlockPosition.Y);
}
private void RearrangePartitionInfoBlocksInTheFlowChart()
{
if (allParticipants.Count > allParticipantInfoBlock.Count)
{
List <Participant> newParticipants = new List <Participant>();
foreach (Participant participant in allParticipants)
{
bool exists = allParticipantInfoBlock.FindIndex(p => p.CurrentParticipant.UserName == participant.UserName) >= 0;
if (!exists)
{
newParticipants.Add(participant);
}
}
//now construct the new participants
foreach (Participant p in newParticipants)
{
ParticipantInfoBlock pInfoBlock = ConstructParticipantInfoBlock(p);
allParticipantInfoBlock.Add(pInfoBlock);
parentPanelToDisplayOn.Controls.Add(pInfoBlock);
}
}
//since after queue position changes for participants, their info position needs to be changed
//to do that set all blocks occupy property to false so that all the blocks are available
//and rearrange the allParticipantInfoBlock list order by desc
foreach (ParticipantInfoBlock participantInfoBlock in allParticipantInfoBlock)
{
if (participantInfoBlock.block == null)
{
participantInfoBlock.block = CalculateParticipantInfoPositionInGrid(participantInfoBlock.CurrentParticipant);
}
participantInfoBlock.block.IsOccupied = false;
participantInfoBlock.CurrentParticipant = allParticipants.Find(p => p.UserName == participantInfoBlock.CurrentParticipant.UserName);
}
allParticipantInfoBlock = allParticipantInfoBlock.OrderByDescending(item => item.CurrentParticipant.QueuePosition).ToList();
foreach (ParticipantInfoBlock participantInfoBlock in allParticipantInfoBlock)
{
UpdateParticipantInfoPanelPosition(participantInfoBlock);
}
}