Class: Skia::PathEffect

Inherits:
Base
  • Object
show all
Defined in:
lib/skia/path_effect.rb

Instance Attribute Summary

Attributes inherited from Base

#ptr

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#null?, release_callback, #to_ptr

Constructor Details

#initialize(ptr) ⇒ PathEffect

Returns a new instance of PathEffect.



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# File 'lib/skia/path_effect.rb', line 5

def initialize(ptr)
  super(ptr, :sk_path_effect_unref)
end

Class Method Details

.dash(intervals, phase: 0.0) ⇒ Object

Raises:



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# File 'lib/skia/path_effect.rb', line 15

def self.dash(intervals, phase: 0.0)
  unless intervals.is_a?(Array) && intervals.length >= 2
    raise ArgumentError, 'intervals must be an array with at least 2 elements'
  end

  interval_values = intervals.map(&:to_f)
  intervals_ptr = FFI::MemoryPointer.new(:float, interval_values.length)
  intervals_ptr.write_array_of_float(interval_values)

  ptr = Native.sk_path_effect_create_dash(intervals_ptr, interval_values.length, phase.to_f)
  raise Error, 'Failed to create dash path effect' if ptr.nil? || ptr.null?

  new(ptr)
end

.wrap(ptr) ⇒ Object 



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# File 'lib/skia/path_effect.rb', line 9

def self.wrap(ptr)
  return nil if ptr.nil? || ptr.null?

  new(ptr)
end