/// <summary>
/// Adds an overlay of markers to the map. Attempts to retreive the overlay data if it already exists
/// otherwise the overlay is created and displayed on the map.
/// </summary>
/// <param name="trackData">Track data to be displayed</param>
void AddMarkerOverlay(TrackGridData trackData)
{
GMapOverlay markersOverlay;
if (!overlays.TryGetValue(trackData.Track, out markersOverlay))
{
markersOverlay = new GMapOverlay();
foreach (GpsPoint point in trackData.Track.Points)
{
AddMarker(markersOverlay, point, trackData.Marker);
}
overlays[trackData.Track] = markersOverlay;
}
gMap.Overlays.Add(markersOverlay);
gMap.Refresh();
//bug in GMap places new points at wrong position
double zoom = gMap.Zoom;
gMap.Zoom = zoom - 1;
gMap.Zoom = zoom;
}
private void LoadTracks(string[] fileNames)
{
GpsLogParser p;
foreach (string file in fileNames)
{
p = new GpsLogParser(file);
GpsTrack track = p.ReadGpsLog();
TrackGridData data = new TrackGridData(track, file);
AddTrackToGrid(data);
}
}
/// <summary>
/// Modifies existing overlays with new data (currently only in the form of a different marker.
/// </summary>
/// <param name="data"></param>
/// <remarks>Read-write settings for the map data means that if the data is currently displayed on the
/// map the only way to modify it is to delete it and make a new overlay with updated data.</remarks>
void UpdateTrackOverlay(TrackGridData data)
{
GMapOverlay overlay;
if (overlays.TryGetValue(data.Track, out overlay))
{
// a replacement overlay is not generated until it is needed for display.
overlays.Remove(data.Track);
// if the data exists as an overlay on the map it means it is currently being displayed and will need to be redrawn
if (gMap.Overlays.Contains(overlay))
{
gMap.Overlays.Remove(overlay);
AddMarkerOverlay(data);
}
}
}
/// <summary>
/// Currently the only cell value that the user can modify is the check box that determines if the track data is displayed on the map
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tracksGridView_CellValueChanged(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == Display.Index && e.RowIndex != -1)
{
DataGridViewRow row = tracksGridView.Rows[e.RowIndex];
TrackGridData trackData = (TrackGridData)row.Tag;
if ((bool)row.Cells[Display.Index].Value)
{
AddMarkerOverlay(trackData);
}
else
{
gMap.Overlays.Remove(overlays[trackData.Track]);
}
}
gMap.Refresh();
}
void AddTrackToGrid(TrackGridData trackData)
{
DataGridViewRow row = (DataGridViewRow)tracksGridView.RowTemplate.Clone();
row.CreateCells(tracksGridView);
row.Cells[Display.Index].Value = false;
row.Cells[displayFormat.Index].Value = "Edit";
row.Cells[startTime.Index].Value = trackData.Track.StartPretty;
row.Cells[endTime.Index].Value = trackData.Track.EndPretty;
row.Cells[minLatitude.Index].Value = trackData.Track.MinLatitudePretty;
row.Cells[maxLatitude.Index].Value = trackData.Track.MaxLatitudePretty;
row.Cells[minLongitude.Index].Value = trackData.Track.MinLongitudePretty;
row.Cells[maxLongitude.Index].Value = trackData.Track.MaxLongitudePretty;
row.Tag = trackData;
tracksGridView.Rows.Add(row); //false, track.StartDate, track.EndDate, track.MinLatitude, track.MaxLatitude, track.MinLongitude, track.MaxLongitude);
UpdateGridSize();
}
/// <summary>
/// Currently only handles clicks to the "Format Edit" button for changing the parker image of a track.
/// Launches a new window for selecting the marker type.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void tracksGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
var senderGrid = (DataGridView)sender;
if (senderGrid.Columns[e.ColumnIndex] is DataGridViewButtonColumn &&
e.RowIndex >= 0)
{
TrackGridData data = (TrackGridData)senderGrid.Rows[e.RowIndex].Tag;
using (var f = new Markers(data.Marker))
{
var result = f.ShowDialog();
if (result == DialogResult.OK && f.Marker != data.Marker)
{
TrackGridData newData = new TrackGridData(data.Track, data.FileName);
newData.Marker = f.Marker;
senderGrid.Rows[e.RowIndex].Tag = newData;
UpdateTrackOverlay(newData);
}
}
}
}
public TimeDistanceFilterForm(TrackGridData trackData)
{
InitializeComponent();
this.trackData = trackData;
}
