A class that can be used by IInputMode implementations and similar code to manage interactive snapping of elements to other elements during a drag-like operation.

Namespace: yWorks.Canvas.Input
Assembly: yWorks.yFilesWPF.Viewer (in yWorks.yFilesWPF.Viewer.dll) Version: 2.2.0.2 (2.2.0.2)

Syntax

C#
public class SnapContext

Visual Basic
Public Class SnapContext

Remarks

This class should be used by the drag implementation as follows:

To initialize the operation InitializeDrag(IInputModeContext, PointD) needs to be called.
Method DragInitialized()()()()needs to be called after the mode has performed all of its own initialization.
Then a series of zero or more invocations of either HandleMove(PointD) or DisableSnapping()()()() needs to be called for each incremental movement of the user's input device.
If HandleMove(PointD) had been called, the mode should perform the move and report back to the instance by calling the Dragged(PointD, SnapState) method.
If the operation is canceled by the user CancelDrag()()()() should be called.
If the operation is finalized the DragFinished(PointD) method should be called.

Inheritance Hierarchy

System..::..Object
yWorks.Canvas.Input..::..SnapContext
yWorks.yFiles.UI.Input..::..GraphSnapContext

Syntax

Remarks

Inheritance Hierarchy

See Also