# File lib/rabbit/image/pdf.rb, line 15 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
# File lib/rabbit/image/pdf.rb, line 31 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
# File lib/rabbit/image/pdf.rb, line 43 def pixbuf @pixbuf ||= to_pixbuf end
# File lib/rabbit/image/pdf.rb, line 69 def filename File.expand_path(@filename) end
# File lib/rabbit/image/pdf.rb, line 48 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
# File lib/rabbit/image/pdf.rb, line 77 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
# File lib/rabbit/image/pdf.rb, line 64 def update_size @document = Poppler::Document.new(uri) @width, @height = page.size end
# File lib/rabbit/image/pdf.rb, line 73 def uri "file://#{filename}" end