void SearchItemPicker_SelectedIndexChanged(object sender, EventArgs e)
{
ToggleSearchBtn();
SearchingGraphObject SGObj = (SearchingGraphObject)BindingContext;
// change colour of old entry
Entry oldEntry = CurrentEntriesOnGraph.Where(p => p.Value == SGObj.SearchItemValue)
.FirstOrDefault();
if (!(oldEntry is null))
{
oldEntry.Color = SKColor.Parse("#FF1493");
}
SGObj.SearchItemValue = searchItemPicker.SelectedIndex;
Entry searchItemEntry = CurrentEntriesOnGraph.Where(p => p.Value == SGObj.SearchItemValue)
.FirstOrDefault();
int index = CurrentEntriesOnGraph.ToList().IndexOf(searchItemEntry);
if (SGObj.SearchItemValue > 0)
{
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse("#0000FF");
}
DisplayGraph(CurrentEntriesOnGraph);
}
private async void ClearMarkersOnGraph(IEnumerable <Entry> markers)
{
if (markers != null &&
markers.Count() != 0)
{
SearchingGraphObject SGObj = (SearchingGraphObject)BindingContext;
// change colour of current markers back
foreach (Entry marker in markers)
{
if (marker.Value != SGObj.SearchItemValue)
{
int index = CurrentEntriesOnGraph.ToList().IndexOf(marker);
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse(App.GraphColour);
DisplayGraph(CurrentEntriesOnGraph);
await Task.Delay(SGObj.SpeedDictionary[SGObj.Speed]);
}
}
CurrentMarkers.Clear();
}
}
private async Task ChangeOperationEntry <T>(T operation) where T : ISearchOperation
{
if (operation.Entry != null)
{
SearchingGraphObject SGObj = (SearchingGraphObject)BindingContext;
int index = CurrentEntriesOnGraph.ToList().IndexOf(operation.Entry);
if (operation.IsSearchItem is false)
{
Console.WriteLine(index);
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse(operation.ChangeToColour);
DisplayGraph(CurrentEntriesOnGraph);
await Task.Delay(SGObj.SpeedDictionary[SGObj.Speed]);
// change back to original colour
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse(App.GraphColour);
}
else if (operation.IsSearchItem is true)
{
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse(operation.ChangeToColour);
}
DisplayGraph(CurrentEntriesOnGraph);
}
}
private async Task HandleMarkers(InterpolationOperation operation)
{
if (operation.Markers != null &&
operation.Markers.Length != 0)
{
SearchingGraphObject SGObj = (SearchingGraphObject)BindingContext;
if (CurrentMarkers.Count() != 0)
{
// change colour of current markers on graph
ClearMarkersOnGraph(CurrentMarkers);
await Task.Delay(SGObj.SpeedDictionary[SGObj.Speed]);
}
// add new markers
foreach (Entry entry in operation.Markers)
{
int index = CurrentEntriesOnGraph.ToList().IndexOf(entry);
CurrentEntriesOnGraph.ToArray()[index].Color = SKColor.Parse(operation.ChangeToColour);
CurrentMarkers.Add(entry);
}
DisplayGraph(CurrentEntriesOnGraph);
await Task.Delay(SGObj.SpeedDictionary[SGObj.Speed]);
}
}