Shape building blocks

Base protocol which all shapes must implement.

Note: If you implement your own shapes, see Drawing.shapeDecoder!

Simplified representation of three ordered affine transforms (translate, rotate, scale) that can be applied to ShapeWithTransform.

Enhancement to Shape protocol that allows you to simply specify a boundingRect property and have hitTest implemented automatically.

Enhancement to Shape protocol that has a transform property, meaning it can be translated, rotated, and scaled relative to its original characteristics.

Enhancement to Shape protocol that enforces requirements necessary for a shape to be used with the selection tool. This includes ShapeWithBoundingRect to render the selection rect around the shape, and ShapeWithTransform to allow the shape to be moved from its original position

Enhancement to Shape adding properties to match all UserSettings properties. There is a convenience method apply(userSettings:) which updates the shape to match the given values.

Like ShapeWithStandardState, but ignores UserSettings.fillColor.

Special case of Shape where the shape is defined by exactly two points. This case is used to share code between the line, ellipse, and rectangle shapes and tools.

Special case of Shape where the shape is defined by exactly three points.