Module: Puzzlize::ModelInstanceMethods

Defined in:
lib/puzzlize/model_instance_methods.rb

Instance Method Summary collapse

Instance Method Details

#default_puzzle_image_path ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 7

def default_puzzle_image_path
  self.send(self.class.get_puzzlize_attribute_name).path(:medium)
end

#default_puzzle_image_url ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 3

def default_puzzle_image_url
  self.send(self.class.get_puzzlize_attribute_name).url(:medium)
end

#determine_parameters ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 43

def determine_parameters
  @file_location = self.default_puzzle_image_path
  @source_file = Magick::Image.read(@file_location).first
  @cutter = Puzzlize::Cutter.new
  @cutter.piece_size = (@source_file.columns * 0.25).to_i
  @cutter.image_width = @source_file.columns
  @cutter.image_height = @source_file.rows
  @source_file = @source_file.crop(*(@cutter.piece_fitting_diamentions + [true]))
end

#make_all_piece ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 117

def make_all_piece
  @cutter.vertical_pieces.times do |y_axis|
    @cutter.horizontal_pieces.times do |x_axis|
      make_single_piece(x_axis, y_axis)
    end
  end
end

#make_puzzle ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 31

def make_puzzle
  if puzzle_created?
    determine_parameters
    make_all_piece
    update_piece_information
  end
end

#make_single_piece(row_x, row_y) ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 65

def make_single_piece(row_x, row_y)
  # get the source image and crop it to the appropriate size.
  bg = @source_file.crop(*(@cutter.piece_points(row_x, row_y) + [true]))

  # This will be the final image output
  img = Magick::Image.new(bg.columns,bg.rows)
  img.compression = Magick::LZWCompression

  # draw the image that is suppose to be invisible.
  gc = Magick::Draw.new
  gc.stroke_antialias(false)
  gc.stroke_width(0)

  # first start with black box.
  gc.fill('#000000')
  gc.rectangle(0,0,bg.columns, bg.rows)

  # draw rectangles around the edges of the images aka "buffers"
  # that will later be made transperant
  gc.fill('#09f700')
  @cutter.rectangle_locations(row_x, row_y).each do |a_rectangle|
    gc.rectangle(*a_rectangle) unless a_rectangle.nil?
  end

  # draw the up to 4 connectors
  connector_types = @cutter.connector_types(row_x, row_y)
  @cutter.connector_locations(row_x, row_y).each_with_index do |connector, index|
    unless connector.nil?
      gc.fill('#09f700') if connector_types[index] == -1
      gc.fill('#000000') if connector_types[index] == 1
      points = connector
      points << (connector[0] + @cutter.connector_radius)
      points << connector[1]
      gc.circle(*points)
    end
  end

  # draw the image and composite the background image (bg) and set the transparency.
  # Creating a cookie cutter affect.
  gc.draw(img)
  img = img.matte_replace((bg.columns / 2).to_i,(bg.rows / 2).to_i)
  img = bg.composite(img, Magick::CenterGravity, Magick::OverCompositeOp)
  img = img.transparent('#09f700')
  
  Rails.logger.debug { "[puzzle_maker] writing image to #{@file_location.sub(/\..*$/, "-#{row_x}_#{row_y}.gif")}".inspect } if defined? Rails
  img.write(piece_file_name(row_x, row_y, @file_location))
end

#piece_file_name(row_x, row_y, file_location) ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 113

def piece_file_name(row_x, row_y, file_location)
  file_location.sub(/\..*$/, "-#{row_x}_#{row_y}.gif")
end

#puzzle_created? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/puzzlize/model_instance_methods.rb', line 39

def puzzle_created?
  !self.vertical_pieces?
end

#puzzle_images_urls ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 11

def puzzle_images_urls
  output = []
  self.vertical_pieces.to_i.times do |y_axis|
    self.horizontal_pieces.to_i.times do |x_axis|
      output << piece_file_name(x_axis, y_axis, self.default_puzzle_image_url)
    end
  end
  output
end

#puzzle_pieces_names ⇒ Object 



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# File 'lib/puzzlize/model_instance_methods.rb', line 21

def puzzle_pieces_names
  output = []
  self.vertical_pieces.to_i.times do |y_axis|
    self.horizontal_pieces.to_i.times do |x_axis|
      output << "puzzle_#{x_axis}-#{y_axis}"
    end
  end
  output
end

#update_piece_information ⇒ Object

this is isolated because supermodel treats update_attributes the same as save ActiveRecord does not do this.



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# File 'lib/puzzlize/model_instance_methods.rb', line 55

def update_piece_information
  self.update_attributes({
    :vertical_pieces => @cutter.vertical_pieces, 
    :horizontal_pieces => @cutter.horizontal_pieces, 
    :vertical_piece_size => @cutter.real_piece_size, 
    :horizontal_piece_size => @cutter.real_piece_size,
    :image_width => @cutter.image_width,
    :image_height => @cutter.image_height})
end