Sha256: c4a3424c952b3a819b338dcd32fb8e9c33ec66b722e6ca7d03fdcb9a7850d143
Contents?: true
Size: 1.61 KB
Versions: 11
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Contents
require "rabbit/utils"
Rabbit::Utils.require_safe "poppler"
require "rabbit/image/base"
module Rabbit
module ImageManipulable
class PDF < Base
unshift_loader(self)
class << self
def match?(filename)
File.open(filename) do |f|
line = f.gets
line and /\A%PDF-1\.\d\z/ =~ line.chomp
end
rescue ArgumentError
false
end
end
def draw(canvas, x, y, params={})
if @doc and canvas.poppler_available?
default_params = {
:width => width,
:height => height,
}
canvas.draw_poppler_page(page, x, y, default_params.merge(params))
else
super
end
end
def pixbuf
@pixbuf ||= to_pixbuf
end
private
def page
index = self["page"] || 0
begin
index = Integer(index)
rescue ArgumentError
end
_page = @doc[index]
if _page.nil?
message = _("%s page isn't exist in PDF") % index.inspect
raise ImageLoadError.new("#{@filename}: #{message}")
end
_page
end
def update_size
@doc = Poppler::Document.new(uri)
@width, @height = page.size
end
def filename
File.expand_path(@filename)
end
def uri
"file://#{filename}"
end
def to_pixbuf
w = original_width
h = original_height
pixbuf = Gdk::Pixbuf.new(Gdk::Pixbuf::COLORSPACE_RGB, true, 8, w, h)
page.render(0, 0, w, h, 1.0, 0, pixbuf)
pixbuf
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems