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Name	Size	Permission
document	[ DIR ]	drwxr-xr-x
font	[ DIR ]	drwxr-xr-x
graphics	[ DIR ]	drwxr-xr-x
images	[ DIR ]	drwxr-xr-x
security	[ DIR ]	drwxr-xr-x
table	[ DIR ]	drwxr-xr-x
text	[ DIR ]	drwxr-xr-x
document.rb	23.32 KB	-rw-r--r--
encoding.rb	2.61 KB	-rw-r--r--
errors.rb	2.92 KB	-rw-r--r--
font.rb	13.46 KB	-rw-r--r--
font_metric_cache.rb	1.06 KB	-rw-r--r--
graphics.rb	19.4 KB	-rw-r--r--
grid.rb	6.44 KB	-rw-r--r--
image_handler.rb	896 B	-rw-r--r--
images.rb	6.42 KB	-rw-r--r--
measurement_extensions.rb	671 B	-rw-r--r--
measurements.rb	995 B	-rw-r--r--
outline.rb	11.32 KB	-rw-r--r--
repeater.rb	3.26 KB	-rw-r--r--
security.rb	10.4 KB	-rw-r--r--
soft_mask.rb	2.09 KB	-rw-r--r--
stamp.rb	4.43 KB	-rw-r--r--
table.rb	24.46 KB	-rw-r--r--
text.rb	16.76 KB	-rw-r--r--
transformation_stack.rb	1.13 KB	-rw-r--r--
utilities.rb	998 B	-rw-r--r--
version.rb	44 B	-rw-r--r--
view.rb	2.56 KB	-rw-r--r--

Code Editor : stamp.rb

# stamp.rb : Implements a repeatable stamp
#
# Copyright October 2009, Daniel Nelson. All Rights Reserved.
#
# This is free software. Please see the LICENSE and COPYING files for details.
#
module Prawn
  # The Prawn::Stamp module is used to create content that will be
  # included multiple times in a document. Using a stamp has three
  # advantages over creating content anew each time it is placed on
  # the page:
  #   i.   faster document creation
  #   ii.  smaller final document
  #   iii. faster display on subsequent displays of the repeated
  #   element because the viewer application can cache the rendered
  #   results
  #
  # Example:
  #   pdf.create_stamp("my_stamp") {
  #     pdf.fill_circle([10, 15], 5)
  #     pdf.draw_text("hello world", :at => [20, 10])
  #   }
  #   pdf.stamp("my_stamp")
  #
  module Stamp
    # @group Stable API

# Renders the stamp named <tt>name</tt> to the page
    # raises <tt>Prawn::Errors::InvalidName</tt> if name.empty?
    # raises <tt>Prawn::Errors::UndefinedObjectName</tt> if no stamp
    # has been created with this name
    #
    # Example:
    #   pdf.create_stamp("my_stamp") {
    #     pdf.fill_circle([10, 15], 5)
    #     pdf.text("hello world", :at => [20, 10])
    #   }
    #   pdf.stamp("my_stamp")
    #
    def stamp(name)
      dictionary_name, dictionary = stamp_dictionary(name)
      renderer.add_content "/#{dictionary_name} Do"
      update_annotation_references dictionary.data[:Annots]
      state.page.xobjects.merge!(dictionary_name => dictionary)
    end

# Renders the stamp named <tt>name</tt> at a position offset from
    # the initial coords at which the elements of the stamp was
    # created
    #
    # Example:
    #   pdf.create_stamp("circle") do
    #     pdf.fill_circle([0, 0], 25)
    #   end
    #   # draws a circle at 100, 100
    #   pdf.stamp_at("circle", [100, 100])
    #
    # See stamp() for exceptions that might be raised
    #
    def stamp_at(name, point)
      translate(point[0], point[1]) { stamp(name) }
    end

# Creates a re-usable stamp named <tt>name</tt>
    #
    # raises <tt>Prawn::Errors::NameTaken</tt> if a stamp already
    # exists in this document with this name
    # raises <tt>Prawn::Errors::InvalidName</tt> if name.empty?
    #
    # Example:
    #   pdf.create_stamp("my_stamp") {
    #     pdf.fill_circle([10, 15], 5)
    #     pdf.draw_text("hello world", :at => [20, 10])
    #   }
    #
    def create_stamp(name, &block)
      dictionary = create_stamp_dictionary(name)

state.page.stamp_stream(dictionary, &block)
    end

private

def stamp_dictionary_registry
      @stamp_dictionary_registry ||= {}
    end

def next_stamp_dictionary_id
      stamp_dictionary_registry.length + 1
    end

def stamp_dictionary(name)
      raise Prawn::Errors::InvalidName if name.empty?
      if stamp_dictionary_registry[name].nil?
        raise Prawn::Errors::UndefinedObjectName
      end

dict = stamp_dictionary_registry[name]

dictionary_name = dict[:stamp_dictionary_name]
      dictionary = dict[:stamp_dictionary]
      [dictionary_name, dictionary]
    end

def create_stamp_dictionary(name)
      raise Prawn::Errors::InvalidName if name.empty?
      raise Prawn::Errors::NameTaken unless stamp_dictionary_registry[name].nil?
      # BBox origin is the lower left margin of the page, so we need
      # it to be the full dimension of the page, or else things that
      # should appear near the top or right margin are invisible
      dictionary = ref!(
        Type: :XObject,
        Subtype: :Form,
        BBox: [
          0, 0,
          state.page.dimensions[2], state.page.dimensions[3]
        ]
      )

dictionary_name = "Stamp#{next_stamp_dictionary_id}"

stamp_dictionary_registry[name] = {
        stamp_dictionary_name: dictionary_name,
        stamp_dictionary: dictionary
      }
      dictionary
    end

# Referencing annotations from a stamp XObject doesn't result
    # in a working link. Instead, the references must be appended
    # to the /Annot dictionary of the object that contains the
    # call to the stamp object.
    def update_annotation_references(annots)
      if annots && annots.any?
        state.page.dictionary.data[:Annots] ||= []
        state.page.dictionary.data[:Annots] |= annots
      end
    end

def freeze_stamp_graphics
      update_colors
      write_line_width
      write_stroke_cap_style
      write_stroke_join_style
      write_stroke_dash
    end
  end
end

${this.title}

Code Editor : stamp.rb