/// <summary>
/// Handles the Mouse-Up situation.
/// </summary>
/// <param name="e">The GeoMouseArcs class describes the mouse condition along with geographic coordinates.</param>
protected override void OnMouseUp(GeoMouseArgs e)
{
if (_standBy)
{
return;
}
if (_featureSet == null || _featureSet.IsDisposed)
{
return;
}
if (e.Button == MouseButtons.Left || e.Button == MouseButtons.Right)
{
// Add the current point to the featureset
if (_featureSet.FeatureType == FeatureType.Point)
{
// Begin snapping changes
Coordinate snappedCoord = _coordinateDialog.Coordinate;
ComputeSnappedLocation(e, ref snappedCoord);
// End snapping changes
Topology.Point pt = new Topology.Point(snappedCoord); // Snapping changes
Feature f = new Feature(pt);
_featureSet.Features.Add(f);
_featureSet.ShapeIndices = null; // Reset shape indices
_featureSet.UpdateExtent();
_layer.AssignFastDrawnStates();
_featureSet.InvalidateVertices();
return;
}
if (e.Button == MouseButtons.Right)
{
_context.Show((Control)Map, e.Location);
}
else
{
if (_coordinates == null)
{
_coordinates = new List <Coordinate>();
}
// Begin snapping changes
Coordinate snappedCoord = e.GeographicLocation;
ComputeSnappedLocation(e, ref snappedCoord);
// End snapping changes
_coordinates.Add(snappedCoord); // Snapping changes
if (_coordinates.Count > 1)
{
Point p1 = Map.ProjToPixel(_coordinates[_coordinates.Count - 1]);
Point p2 = Map.ProjToPixel(_coordinates[_coordinates.Count - 2]);
Rectangle invalid = SymbologyGlobal.GetRectangle(p1, p2);
invalid.Inflate(20, 20);
Map.Invalidate(invalid);
}
}
}
base.OnMouseUp(e);
}
/// <summary>
/// Finish the shape.
/// </summary>
/// <param name="sender">The object sender.</param>
/// <param name="e">An empty EventArgs class.</param>
public void FinishShape(object sender, EventArgs e)
{
if (_featureSet != null && !_featureSet.IsDisposed)
{
Feature f = null;
if (_featureSet.FeatureType == FeatureType.MultiPoint)
{
f = new Feature(new MultiPoint(_coordinates.CastToPointArray()));
}
if (_featureSet.FeatureType == FeatureType.Line || _featureSet.FeatureType == FeatureType.Polygon)
{
// if (_coordinates == null || _coordinates.Count < 2) return;
FinishPart(sender, e);
if (_parts == null || _parts.Count <= 0)
{
return;
}
Shape shp = new Shape(_featureSet.FeatureType);
foreach (List <Coordinate> part in _parts)
{
// In order to avoid exceptions
if (part != null && part.Count >= 2)
{
shp.AddPart(part, _featureSet.CoordinateType);
}
}
f = new Feature(shp);
}
if (f != null)
{
_featureSet.Features.Add(f);
}
_featureSet.ShapeIndices = null; // Reset shape indices
_featureSet.UpdateExtent();
_layer.AssignFastDrawnStates();
_featureSet.InvalidateVertices();
}
_coordinates = new List <Coordinate>();
_parts = new List <List <Coordinate> >();
}