/// <summary>
/// Called when the respective <see cref="MapShapeLayer" /> is invalidated and its contents are cleared.
/// </summary>
/// <param name="layer">The shape layer.</param>
protected internal override void OnShapeLayerCleared(MapShapeLayer layer)
{
if (layer == null)
{
return;
}
base.OnShapeLayerCleared(layer);
var context = new SelectionChangeContext()
{
Layer = layer
};
for (int i = this.selectedModels.Count - 1; i >= 0; i--)
{
var shape = this.map == null ? null : this.map.FindShapeForModel(this.selectedModels[i]);
if (shape == null || shape.LayerId != layer.Id)
{
continue;
}
context.Shape = shape;
context.Model = this.selectedModels[i];
this.DeselectShape(context);
}
this.NotifySelectionChanged(context);
}
/// <summary>
/// Initiates a hit test on the specified <see cref="Point"/> location.
/// </summary>
/// <param name="location">The location.</param>
/// <param name="shapeLayer">The <see cref="MapShapeLayer"/> instance whose shapes to hit test.
/// Default value is null i.e. hit testing is performed on all layers (starting from the top-most one) and the first positive match is returned.</param>
/// <returns></returns>
public IMapShape HitTest(Point location, MapShapeLayer shapeLayer = null)
{
int layerZIndex = -1;
if (shapeLayer != null)
{
layerZIndex = shapeLayer.ZIndex;
}
var result = this.D2DSurface.HitTest(location, layerZIndex);
if (result != null)
{
return(result.Model as IMapShape);
}
return(null);
}
/// <summary>
/// Called when the respective <see cref="MapShapeLayer" /> is invalidated and its contents are cleared.
/// </summary>
/// <param name="layer">The shape layer.</param>
protected internal override void OnShapeLayerCleared(MapShapeLayer layer)
{
base.OnShapeLayerCleared(layer);
this.HideToolTip();
}
/// <summary>
/// Called when the respective <see cref="MapShapeLayer"/> is invalidated and its contents are cleared.
/// </summary>
/// <param name="layer">The shape layer.</param>
protected internal virtual void OnShapeLayerCleared(MapShapeLayer layer)
{
}
/// <summary>
/// Performs the core logic behind the <see cref="Process"/> routine.
/// </summary>
/// <param name="context"></param>
/// <param name="container"></param>
protected virtual void ProcessCore(MapShapeLabelLayoutContext context, MapShapeLayer container)
{
}
/// <summary>
/// Applies the custom layout logic given the provided layout context and layer.
/// </summary>
/// <param name="context"></param>
/// <param name="container"></param>
public void Process(MapShapeLabelLayoutContext context, MapShapeLayer container)
{
this.ProcessCore(context, container);
}
