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    Class GraphicsPathAbstract

    GraphicsPath is used to path complex shapes for stroking, filling, and clipping.

    Hierarchy (View Summary)

    • Obj
      • GraphicsPath
    Index

    Constructors

    Properties

    type$: Type

    Methods

    • Create circular arc centered at x, y with given radius. The start angle and sweep angle are measured in degrees. East is 0°, north 90°, west is 180°, and south is 270°. Positive sweeps are counterclockwise and negative sweeps are clockwise.

      Parameters

      • x: number
      • y: number
      • radius: number
      • start: number
      • sweep: number

      Returns this

    • Intersect the current clipping shape with this path. This call terminates the current pathing operation.

      Returns this

    • Close the path by add a line from current point back to starting point.

      Returns this

    • Return a negative integer, zero, or a positive integer if this object is less than, equal to, or greater than the specified object:

      this < that   =>  <0
      this == that => 0
      this > that => >0

      This method may also be accessed via the < <= <=> >= and > shortcut operators. If not overridden the default implementation compares the toStr representations. Also see docLang.

      Examples:

      3.compare(8)  =>  -1
      8.compare(3) => 1
      8.compare(8) => 0
      3 <=> 8 => -1 // shortcut for 3.compare(8)

      Parameters

      Returns number

    • Add a Bézier curve to the path. The cp1 and cp2 parameters specify the first and second control points; x and y specify the end point.

      Parameters

      • cp1x: number
      • cp1y: number
      • cp2x: number
      • cp2y: number
      • x: number
      • y: number

      Returns this

    • Stroke the the current path using current stroke and paint. This call terminates the current pathing operation.

      Returns this

    • Compare this object to the specified for equality. This method may be accessed via the == and != shortcut operators. If not overridden the default implementation compares for reference equality using the === operator. If this method is overridden, then hash() must also be overridden such that any two objects which return true for equals() must return the same value for hash(). This method must accept null and return false.

      Parameters

      Returns boolean

    • Fill the current path with current paint. This call terminates the current pathing operation.

      Returns this

    • Return a unique hashcode for this object. If a class overrides hash() then it must ensure if equals() returns true for any two objects then they have same hash code.

      Returns number

    • Return if this Obj is immutable and safe to share between threads:

      • an instance of a const class
      • the result of toImmutable on List, Map, or Buf
      • a Func object may or may not be immutable - see sys::Func.
      • other instances are assumed mutable and return false

      Returns boolean

    • Add a line to the path from current point to given point.

      Parameters

      • x: number
      • y: number

      Returns this

    • Move the current point without creating a line.

      Parameters

      • x: number
      • y: number

      Returns this

    • Add a quadratic Bézier curve to the path. The cpx and cpy specify the control point; the x and y specify the end point.

      Parameters

      • cpx: number
      • cpy: number
      • x: number
      • y: number

      Returns this

    • Get an immutable representation of this instance or throw NotImmutableErr if this object cannot be represented as an immutable:

      • if type is const, return this
      • if already an immutable List, Map, Buf, or Func return this
      • if a List, then attempt to perform a deep clone by calling toImmutable on all items
      • if a Map, then attempt to perform a deep clone by calling toImmutable on all values (keys are already immutable)
      • some Funcs can be made immutable - see sys::Func
      • if a Buf create immutable copy, see sys::Buf
      • any other object throws NotImmutableErr

      Returns Readonly<this>

    • Return a string representation of this object.

      Returns string

    • Trap a dynamic call for handling. Dynamic calls are invoked with the -> shortcut operator:

      a->x        a.trap("x", null)
      a->x() a.trap("x", null)
      a->x = b a.trap("x", [b])
      a->x(b) a.trap("x", [b])
      a->x(b, c) a.trap("x", [b, c])

      The default implementation provided by Obj attempts to use reflection. If name maps to a method, it is invoked with the specified arguments. If name maps to a field and args.size is zero, get the field. If name maps to a field and args.size is one, set the field and return args[0]. Otherwise throw UnknownSlotErr.

      Parameters

      Returns JsObj

    • Get the Type instance which represents this object's class. Also seeType.of or Pod.of.

      Returns Type

    • This method called whenever an it-block is applied to an object. The default implementation calls the function with this, and then returns this.

      Parameters

      • f: (arg0: this) => void

      Returns this

    • Write x.toStr to standard output followed by newline. If x is null then print "null". If no argument is provided then print an empty line.

      Parameters

      Returns void