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Versions: 10
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Contents
require 'rsvg2'
require 'rexml/document'
require_relative '../frame'
require_relative 'abstract_image_reader'
module Phantom
module SVG
module Parser
# JPEG reader.
class JPEGReader < AbstractImageReader
# Read jpeg file from path.
def read(path, _options = {})
reset
return if path.nil? || path.empty?
frame = create_frame(path)
@frames << frame
@width = "#{frame.width}px"
@height = "#{frame.height}px"
end
private
# Create frame.
def create_frame(path, duration = nil)
pixbuf = Gdk::Pixbuf.new(path)
frame = Phantom::SVG::Frame.new
frame.width = "#{pixbuf.width}px"
frame.height = "#{pixbuf.height}px"
frame.viewbox.set_from_text("0 0 #{pixbuf.width} #{pixbuf.height}")
frame.surfaces = create_surfaces(path, pixbuf.width, pixbuf.height)
frame.duration = duration unless duration.nil?
frame.namespaces = { 'xmlns' => 'http://www.w3.org/2000/svg',
'xlink' => 'http://www.w3.org/1999/xlink' }
frame
end
# Create surfaces.
def create_surfaces(path, width, height)
bin = File.binread(path)
base64 = [bin].pack('m')
image = REXML::Element.new('image')
image.add_attributes(
'width' => width,
'height' => height,
'xlink:href' => "data:image/jpeg;base64,#{base64}"
)
[image]
end
end # class JPEGReader
end # module Parser
end # module SVG
end # module Phantom
Version data entries
10 entries across 10 versions & 1 rubygems