CanSnapPoint Method (GoGrid)

In This Topic

This predicate is called by GoView.GoView.SnapPoint to decide whether this grid should take part.

Syntax

public virtual bool CanSnapPoint( 
   PointF p,
   GoObject obj,
   GoView view
)

Parameters

p: a PointF in document coordinates
obj: the object being moved or resized (may be null/nothing)
view: the GoView in which the snapping is occuring; may be null/nothing

Return Value

true if GoView.GoView.SnapPoint should call GoGrid.SnapPoint

Remarks

This considers the SnapDrag property (or the SnapResize property if resizing). If is not null and the current Tool is either GoToolResizing or GoToolDragging, this method checks whether the GoView.LastInput point is within the grid; if the view is null or another type of tool is currently in use, it checks whether the given point is within the grid. This predicate is false if GoObject.CanView returns false, but this predicate is not affected by the value of Style or any other properties that control this grid's appearance. To avoid confusion in some common cases, this predicate is also false if the is this grid itself, or if this grid GoObject.IsChildOf the , or if this grid is part of the view's Selection.

Reference

GoGrid Class
GoGrid Members

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