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SnappingService

Class

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

Definition

Namespace:Telerik.Windows.Diagrams.Core

Assembly:Telerik.WinControls.RadDiagram.dll

Syntax:

public class SnappingService : GraphServiceBase, ISnappingService

Inheritance: objectGraphServiceBaseSnappingService

Implements: ISnappingService

Inherited Members GraphServiceBase.Graph

Constructors

SnappingService(IGraphInternal)

Initializes a new instance of the SnappingService class.

public SnappingService(IGraphInternal graph)

Parameters:graphIGraphInternal

The graph.

Methods

ClearSnap()

Clears after the snap action.

public virtual void ClearSnap()

Implements: ISnappingService.ClearSnap()

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

Initializes the snap action.

public virtual void InitializeSnap(IEnumerable<IShape> staticItems, IDiagramItem mainItem, bool isSnapToItemsEnabled, bool isSnapToGridEnabled, Point initialPosition)

Parameters:staticItemsIEnumerable<IShape>

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

mainItemIDiagramItem

The main item - the item that drag started from.

isSnapToItemsEnabledbool

The is snap to items enabled.

isSnapToGridEnabledbool

The is snap to grid enabled.

initialPositionPoint

The initial position.

Implements: ISnappingService.InitializeSnap(IEnumerable<IShape>, IDiagramItem, bool, bool, Point)

SetSnappingEngine(SnappingEngine)

Changes the snapping engine.

public virtual void SetSnappingEngine(SnappingEngine snappingEngine)

Parameters:snappingEngineSnappingEngine

Implements: ISnappingService.SetSnappingEngine(SnappingEngine)

SnapItems(IEnumerable<IDiagramItem>, Point)

Snaps the new dragging position.

public virtual Point SnapItems(IEnumerable<IDiagramItem> selectedItems, Point newPosition)

Parameters:selectedItemsIEnumerable<IDiagramItem>

The selected items.

newPositionPoint

The new position.

Returns:

Point

Implements: ISnappingService.SnapItems(IEnumerable<IDiagramItem>, Point)

SnapPoint(Point)

Snaps point.

public virtual Point SnapPoint(Point point)

Parameters:pointPoint

The point to snap.

Returns:

Point

The snapped point.

Implements: ISnappingService.SnapPoint(Point)

Events

SnappingLinesCalculated

EventHandler<SnappingLinesCalculatedEventArgs>

Occurs when snapping lines have been calculated.

public event EventHandler<SnappingLinesCalculatedEventArgs> SnappingLinesCalculated

Implements: ISnappingService.SnappingLinesCalculated