Class: CliPix::Image

Inherits:
Object
  • Object
show all
Defined in:
lib/cli_pix/image.rb

Constant Summary collapse

DEFAULT_OPTIONS = 
{
  autoscale: true,
  size: nil,
  flop: false,
  flip: false,
  mode: :color,
  preprocess: false
}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(image, options = {}) ⇒ Image

Returns a new instance of Image.



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# File 'lib/cli_pix/image.rb', line 36

def initialize(image, options = {})
  @image = image
  @options = DEFAULT_OPTIONS.merge options
end

Instance Attribute Details

#image ⇒ Object (readonly)

Returns the value of attribute image.



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# File 'lib/cli_pix/image.rb', line 34

def image
  @image
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/cli_pix/image.rb', line 34

def options
  @options
end

Class Method Details

.from_blob ⇒ Object 



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# File 'lib/cli_pix/image.rb', line 23

def read(blob, options = {})
  image = MiniMagick::Image.read(blob)
  self.new(image, options)
end

.open(url, options = {}) ⇒ Object Also known as: from_url, from_file 



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# File 'lib/cli_pix/image.rb', line 25

def open(url, options = {})
  image = MiniMagick::Image.open(url)
  self.new(image, options)
end

.read(blob, options = {}) ⇒ Object 



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# File 'lib/cli_pix/image.rb', line 19

def read(blob, options = {})
  image = MiniMagick::Image.read(blob)
  self.new(image, options)
end

Instance Method Details

#animate(framerate = 0.2) ⇒ Object 



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# File 'lib/cli_pix/image.rb', line 49

def animate(framerate = 0.2)
  self.read do |text|
    # clear terminal
    clear_screen! 
    puts text
    # wait
    sleep framerate
  end
end

#display ⇒ Object 



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# File 'lib/cli_pix/image.rb', line 41

def display
  self.read do |text|
    # clear terminal
    clear_screen!
    puts text
  end
end

#read ⇒ Object

yields each text frame to the block



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# File 'lib/cli_pix/image.rb', line 60

def read
  process_image!
  if options[:preprocess]
    # | / - \  
     = "|/-\\"
    text_frames = image.frames.map.with_index do |frame, index|
      print "Loading frame #{index + 1}/#{image.frames.length}... #{spinner[index % 4]} \r"
      if options[:mode] == :color
        convert_to_color(frame.get_pixels)
      else
        convert_to_ascii(frame.get_pixels)
      end
    end

    text_frames.each do |text_frame|
      yield text_frame
    end
  else
    image.frames.each do |frame|
      if options[:mode] == :color
        yield convert_to_color(frame.get_pixels)
      else
        yield convert_to_ascii(frame.get_pixels)
      end
    end
  end
end