Class: Minimage::Processor::MiniMagick

Inherits:
Base
  • Object
show all
Defined in:
lib/minimage/processor/mini_magick.rb

Instance Attribute Summary

Attributes inherited from Base

#stream

Instance Method Summary collapse

Methods inherited from Base

#initialize

Constructor Details

This class inherits a constructor from Minimage::Processor::Base

Instance Method Details

#fill(width, height, gravity = :center) ⇒ Object 



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# File 'lib/minimage/processor/mini_magick.rb', line 24

def fill(width, height, gravity = :center)
  manipulate! do |img|
    if width && height
      width   = width.to_i
      height  = height.to_i
      gravity = :center unless gravity
      gravity = gravity.to_s.capitalize.gsub(/(?:_)([a-z\d]*)/i) { $1.capitalize }
      cols, rows = img[:dimensions]
      img.combine_options do |c|
        if width != cols || height != rows
          scale_x = width/cols.to_f
          scale_y = height/rows.to_f
          if scale_x >= scale_y
            cols = (scale_x * (cols + 0.5)).round
            rows = (scale_x * (rows + 0.5)).round
            c.resize "#{cols}"
          else
            cols = (scale_y * (cols + 0.5)).round
            rows = (scale_y * (rows + 0.5)).round
            c.resize "x#{rows}"
          end
        end
        c.gravity gravity
        c.background "rgba(255,255,255,0.0)"
        c.extent "#{width}x#{height}" if cols != width || rows != height
      end
    else
      img.resize "#{width}" if width
      img.resize "x#{height}" if height
    end
    img
  end
end

#fit(width, height = nil, gravity = nil) ⇒ Object 



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# File 'lib/minimage/processor/mini_magick.rb', line 58

def fit(width, height = nil, gravity = nil)
  manipulate! do |img|
    img.resize "#{width}x#{height}" if width && height
    img.resize "#{width}" if width
    img.resize "x#{height}" if height
    img
  end
end

#format(format) ⇒ Object 



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# File 'lib/minimage/processor/mini_magick.rb', line 8

def format(format)
  manipulate! do |img|
    img.format format.to_s.downcase
    img
  end
end

#limit(width, height = nil, gravity = nil) ⇒ Object 



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# File 'lib/minimage/processor/mini_magick.rb', line 15

def limit(width, height = nil, gravity = nil)
  manipulate! do |img|
    img.resize "#{width}x#{height}>" if width && height
    img.resize "#{width}" if width
    img.resize "x#{height}" if height
    img
  end
end

#scale(width, height = nil, gravity = nil) ⇒ Object 



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# File 'lib/minimage/processor/mini_magick.rb', line 67

def scale(width, height = nil, gravity = nil)
  manipulate! do |img|
    img.resize "#{width}x#{height}!" if width && height
    img.resize "#{width}" if width
    img.resize "x#{height}" if height
    img
  end
end