Module: CarrierWave::ImageVoodoo

Extended by:
ActiveSupport::Concern
Defined in:
lib/carrierwave_imagevoodoo.rb,
lib/carrierwave_imagevoodoo/version.rb

Defined Under Namespace

Modules: ClassMethods

Constant Summary collapse

VERSION = 
"0.0.5"

Instance Method Summary collapse

Instance Method Details

#convert(format) ⇒ Object 



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# File 'lib/carrierwave_imagevoodoo.rb', line 31

def convert format
  manipulate! do |image|
    yield(image) if block_given?
    image.save "#{current_path.chomp(File.extname(f))}.#{format}"
  end
end

#resize_to_fill(new_width, new_height) ⇒ Object 



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# File 'lib/carrierwave_imagevoodoo.rb', line 54

def resize_to_fill(new_width, new_height)
  manipulate! do |image|
    cols = image.width
    rows = image.height
    width, height = extract_dimensions_for_crop(image.width, image.height, new_width, new_height)
    x_offset, y_offset = extract_placement_for_crop(width, height, new_width, new_height)

    # check if if new dimensions are too small for the new image
    if width < new_width
      width = new_width
      height = (new_width.to_f*(image.height.to_f/image.width.to_f)).round
    elsif height < new_height
      height = new_height
      width = (new_height.to_f*(image.width.to_f/image.height.to_f)).round
    end

    image.resize( width, height ) do |i2|

      # check to make sure offset is not negative
      if x_offset < 0
        x_offset = 0
      end
      if y_offset < 0
        y_offset = 0
      end

      i2.with_crop( x_offset, y_offset, new_width + x_offset, new_height + y_offset) do |file|
        file.save( self.current_path )
      end
    end
  end
end

#resize_to_fit(width, height) ⇒ Object 



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# File 'lib/carrierwave_imagevoodoo.rb', line 46

def resize_to_fit width, height
  manipulate! do |image|
    if (width != image.width) || (height != image.height)
      resize_to_fit!(image, width, height)
    end
  end
end

#resize_to_limit(width, height) ⇒ Object 



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# File 'lib/carrierwave_imagevoodoo.rb', line 38

def resize_to_limit width, height
  manipulate! do |image|
    if (width < image.width) || (height < image.height)
      resize_to_fit!(image, width, height)
    end
  end
end