Class: ImageSqueeze::Processor

Inherits:

Object

• Object
• ImageSqueeze::Processor

Defined in:

lib/image_squeeze/processors/processor.rb

Direct Known Subclasses

GIFToPNGProcessor, GifsicleProcessor, JPEGTranNonProgressiveProcessor, JPEGTranProgressiveProcessor, OptiPNGProcessor, PNGCrushProcessor, PNGToNonProgressiveJPEGProcessor, PNGToProgressiveJPEGProcessor

Instance Attribute Summary

• #filename ⇒ Object readonly

  Returns the value of attribute filename.

Class Method Summary

• .handles?(image_type) ⇒ Boolean
• .input_type ⇒ Object
• .output_extension ⇒ Object

  override if you want a different output extensions.

• .squeeze(filename, output_filename) ⇒ Object

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename.

# File 'lib/image_squeeze/processors/processor.rb', line 3

def filename
  @filename
end

Class Method Details

.handles?(image_type) ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/image_squeeze/processors/processor.rb', line 9

def self.handles?(image_type)
  image_type == input_type
end

.input_type ⇒ Object

# File 'lib/image_squeeze/processors/processor.rb', line 13

def self.input_type
  raise "#{to_s}#input_type should be defined in subclass"
end

.output_extension ⇒ Object

override if you want a different output extensions

# File 'lib/image_squeeze/processors/processor.rb', line 18

def self.output_extension
  ImageSqueeze::IMAGE_TYPE_TO_EXTENSION[input_type]
end

.squeeze(filename, output_filename) ⇒ Object

# File 'lib/image_squeeze/processors/processor.rb', line 5

def self.squeeze(filename, output_filename)
  raise "#{to_s}#squeeze should be defined in subclass and should convert filename to something at output_filename"
end