Sha256: 170203d2dda0ce03f226a05328dfebb0d96ceeb105944784a4eb45900271f536
Contents?: true
Size: 1.91 KB
Versions: 7
Compression:
Stored size: 1.91 KB
Contents
require "rabbit/utils"
Rabbit::Utils.require_safe "poppler"
require "rabbit/image/base"
module Rabbit
module ImageManipulable
class PDF < Base
include GetText
unshift_loader(self)
class << self
def match?(filename)
return true if File.extname(filename) == ".pdf"
File.open(filename) do |file|
line = file.gets
return false if line.nil?
begin
/\A%PDF-1\.\d\z/ =~ line.chomp
rescue ArgumentError
false
end
end
end
end
def draw(canvas, x, y, params={})
if @document 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"] || 1
begin
index = Integer(index)
rescue ArgumentError
message = _("invalid PDF page number: <%s>") % index.inspect
raise ImageLoadError.new("#{@filename}: #{message}")
end
_page = @document[index - 1]
if _page.nil?
message = _("%s page doesn't exist in PDF") % index
raise ImageLoadError.new("#{@filename}: #{message}")
end
_page
end
def update_size
@document = 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
7 entries across 7 versions & 1 rubygems