/// <summary> Clear all selections </summary>
public void ClearSelection()
{
foreach (var kvp in selectedcells)
{
foreach (var cell in kvp.Value)
{
rows[kvp.Key].Cells[cell].SelectedNI = false;
}
contentpanel.RowChanged(kvp.Key); // inform CP
rows[kvp.Key].SelectedNI = false;
}
selectedcells.Clear();
SelectionCleared?.Invoke();
}
/// <summary>
/// Receives the extent made by selection box or a click select to select shapes in a shapefile using intersection.
/// Afterwards, a Selection event is raised
/// </summary>
/// <param name="selectExtents"></param>
/// <param name="selectionFromSelectBox"></param>
private void Select(Extents selectExtents, bool selectionFromSelectBox = false)
{
if (_currentMapLayer != null)
{
_selectedShapeIndexes = null;
_selectionFromSelectBox = selectionFromSelectBox;
if (_currentMapLayer.LayerType == "ShapefileClass")
{
var sf = _axMap.get_Shapefile(_currentMapLayer.Handle);
if (sf != null)
{
_currentMapLayer.SelectedIndexes = null;
sf.SelectNone();
sf.SelectionAppearance = tkSelectionAppearance.saDrawingOptions;
switch (sf.ShapefileType)
{
case ShpfileType.SHP_POINT:
if (sf.Categories.Count > 0)
{
sf.SelectionAppearance = tkSelectionAppearance.saSelectionColor;
}
else
{
sf.SelectionAppearance = tkSelectionAppearance.saDrawingOptions;
sf.SelectionDrawingOptions.PointSize = sf.DefaultDrawingOptions.PointSize;
sf.SelectionDrawingOptions.PointRotation = sf.DefaultDrawingOptions.PointRotation;
sf.SelectionDrawingOptions.PointShape = sf.DefaultDrawingOptions.PointShape;
}
break;
case ShpfileType.SHP_POLYGON:
break;
case ShpfileType.SHP_POLYLINE:
break;
}
var objSelection = new object();
if (sf.SelectShapes(selectExtents, 0, SelectMode.INTERSECTION, ref objSelection))
{
_selectedShapeIndexes = (int[])objSelection;
_currentMapLayer.SelectedIndexes = _selectedShapeIndexes;
for (int n = 0; n < _selectedShapeIndexes.Length; n++)
{
sf.ShapeSelected[_selectedShapeIndexes[n]] = true;
}
if (ShapesSelected != null)
{
var lyArg = new LayerEventArg(_currentMapLayer.Handle, _selectedShapeIndexes);
ShapesSelected(this, lyArg);
}
}
else
{
SelectionCleared?.Invoke(this, EventArgs.Empty);
}
_axMap.Redraw();
Selection?.Invoke(this, EventArgs.Empty);
}
}
else if (_currentMapLayer.LayerType == "ImageClass")
{
}
}
}
void OnRightButtonDown(int x, int y)
{
Selection = null;
SelectionCleared?.Invoke();
}
private void clearSelection() => SelectionCleared?.Invoke();
/// <summary>
/// Fires the selection cleared event.
/// </summary>
/// <param name="args">The arguments.</param>
protected virtual void OnSelectionCleared(FeatureChangeArgs args)
{
SelectionCleared?.Invoke(this, args);
}