Class SnappingService

This class is accountable for calculating snapping related transformations for position and size.

Inheritance
System.Object
GraphServiceBase
SnappingService
Inherited Members
Namespace: Telerik.Windows.Diagrams.Core
Assembly: Telerik.Windows.Diagrams.Core.dll

Syntax

public class SnappingService : GraphServiceBase, ISnappingService

Constructors

SnappingService(IGraphInternal)

Initializes a new instance of the SnappingService class.

Declaration
public SnappingService(IGraphInternal graph)
Parameters
IGraphInternal graph

The graph.

Methods

ClearSnap()

Clears after the snap action.

Declaration
public virtual void ClearSnap()
Implements

InitializeSnap(IEnumerable<IShape>, IDiagramItem, Boolean, Boolean, Point)

Initializes the snap action.

Declaration
public virtual void InitializeSnap(IEnumerable<IShape> staticItems, IDiagramItem mainItem, bool isSnapToItemsEnabled, bool isSnapToGridEnabled, Point initialPosition)
Parameters
System.Collections.Generic.IEnumerable<IShape> staticItems

The static items - the items that you don't drag at the moment.
IDiagramItem mainItem

The main item - the item that drag started from.
System.Boolean isSnapToItemsEnabled

The is snap to items enabled.
System.Boolean isSnapToGridEnabled

The is snap to grid enabled.
System.Windows.Point initialPosition

The initial position.
Implements

SetSnappingEngine(SnappingEngine)

Changes the snapping engine.

Declaration
public virtual void SetSnappingEngine(SnappingEngine snappingEngine)
Parameters
SnappingEngine snappingEngine

Implements

SnapItems(IEnumerable<IDiagramItem>, Point)

Snaps the new dragging position.

Declaration
public virtual Point SnapItems(IEnumerable<IDiagramItem> selectedItems, Point newPosition)
Parameters
System.Collections.Generic.IEnumerable<IDiagramItem> selectedItems

The selected items.
System.Windows.Point newPosition

The new position.
Returns
System.Windows.Point

Implements

SnapPoint(Point)

Snaps point.

Declaration
public virtual Point SnapPoint(Point point)
Parameters
System.Windows.Point point

The point to snap.
Returns
System.Windows.Point

The snapped point.
Implements

Events

SnappingLinesCalculated

Occurs when snapping lines have been calculated.

Declaration
public event EventHandler<SnappingLinesCalculatedEventArgs> SnappingLinesCalculated
Event Type
System.EventHandler<SnappingLinesCalculatedEventArgs>

Implements

Extension Methods