module Prawn::SVG::Extensions::AdditionalGradientTransforms
Public Instance Methods
gradient_coordinates(gradient)
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Calls superclass method
# File lib/prawn/svg/extensions/additional_gradient_transforms.rb, line 3 def gradient_coordinates(gradient) # As of Prawn 2.2.0, apply_transformations is used as purely a boolean. # # Here we're using it to optionally pass in a 6-tuple transformation matrix that gets applied to the # gradient. This should be added to Prawn properly, and then this monkey patch will not be necessary. if gradient.apply_transformations.is_a?(Array) x1, y1, x2, y2, transformation = super a, b, c, d, e, f = transformation na, nb, nc, nd, ne, nf = gradient.apply_transformations matrix = Matrix[[a, c, e], [b, d, f], [0, 0, 1]] * Matrix[[na, nc, ne], [nb, nd, nf], [0, 0, 1]] new_transformation = matrix.to_a[0..1].transpose.flatten [x1, y1, x2, y2, new_transformation] else super end end