iOS & macOS Charting Documentation - SciChart iOS & macOS Charts SDK v4.x

ISCIResizingGrip

@protocol ISCIResizingGrip <NSObject>

Defines the protocol for Resizing Grip which is used to resize ISCIAnnotation instance.

-onDrawGripAt:inCGContext:
Draw this resizing grip at specified point.
Declaration
Objective-C

- (void)onDrawGripAt:(CGPoint)point inCGContext:(nonnull CGContextRef)context;
Swift

func onDraw(at point: CGPoint, in context: CGContext)
Parameters

point

The coordinates of point to draw in pixels.

context

The CGContext to draw resizing grip on.
-isHitAtPoint:andDrawnPoint:
Checks whether this reising grip is hit.
Declaration
Objective-C

- (BOOL)isHitAtPoint:(CGPoint)hitPoint andDrawnPoint:(CGPoint)drawnPoint;
Swift

func isHit(at hitPoint: CGPoint, andDrawnPoint drawnPoint: CGPoint) -> Bool
Parameters

hitPoint

The hit test point in pixels.

drawnPoint

The point where resizing grip was drawn.

Return Value

YES - if hit test point is within resizing grip, otherwise NO;