Instance Method

centerScanRect(_:)

Converts the corners of a specified rectangle to lie on the center of device pixels, which is useful in compensating for rendering overscanning when the coordinate system has been scaled.

Declaration

func centerScanRect(_ rect: NSRect) -> NSRect

Parameters

aRect

The rectangle whose corners are to be converted.

Return Value

The adjusted rectangle.

Discussion

This method converts the given rectangle to device coordinates, adjusts the rectangle to lie in the center of the pixels, and converts the resulting rectangle back to the view’s coordinate system. Note that this method does not take into account any transformations performed using the NSAffineTransform class or Quartz 2D routines.

See Also

Converting Coordinate Values

func backingAlignedRect(NSRect, options: AlignmentOptions) -> NSRect

Returns a backing store pixel-aligned rectangle in local view coordinates.

func convertFromBacking(NSPoint) -> NSPoint

Converts a point from its pixel aligned backing store coordinate system to the view’s interior coordinate system.

func convertToBacking(NSPoint) -> NSPoint

Converts a point from the view’s interior coordinate system to its pixel aligned backing store coordinate system.

func convertFromLayer(NSPoint) -> NSPoint

Convert the point from the layer's interior coordinate system to the view’s interior coordinate system.

func convertToLayer(NSPoint) -> NSPoint

Convert the size from the view’s interior coordinate system to the layer's interior coordinate system.

func convertFromBacking(NSRect) -> NSRect

Converts a rectangle from its pixel aligned backing store coordinate system to the view’s interior coordinate system.

func convertToBacking(NSRect) -> NSRect

Converts a rectangle from the view’s interior coordinate system to its pixel aligned backing store coordinate system.

func convertFromLayer(NSRect) -> NSRect

Convert the rectangle from the layer's interior coordinate system to the view’s interior coordinate system.

func convertToLayer(NSRect) -> NSRect

Convert the size from the view’s interior coordinate system to the layer's interior coordinate system.

func convertFromBacking(NSSize) -> NSSize

Converts a size from its pixel aligned backing store coordinate system to the view’s interior coordinate system.

func convertToBacking(NSSize) -> NSSize

Converts a size from the view’s interior coordinate system to its pixel aligned backing store coordinate system.

func convertFromLayer(NSSize) -> NSSize

Convert the size from the layer's interior coordinate system to the view’s interior coordinate system.

func convertToLayer(NSSize) -> NSSize

Convert the size from the view’s interior coordinate system to the layer's interior coordinate system.

func convert(NSPoint, from: NSView?) -> NSPoint

Converts a point from the coordinate system of a given view to that of the view.

func convert(NSPoint, to: NSView?) -> NSPoint

Converts a point from the view’s coordinate system to that of a given view.

func convert(NSSize, from: NSView?) -> NSSize

Converts a size from another view’s coordinate system to that of the view.

func convert(NSSize, to: NSView?) -> NSSize

Converts a size from the view’s coordinate system to that of another view.

func convert(NSRect, from: NSView?) -> NSRect

Converts a rectangle from the coordinate system of another view to that of the view.

func convert(NSRect, to: NSView?) -> NSRect

Converts a rectangle from the view’s coordinate system to that of another view.