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Versions: 11
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Contents
module ImageMagickProcessor
def geometry
[image_details[:width], image_details[:height]]
end
def format
image_details[:format]
end
def image_data
IO.read(@temp_file)
end
def save_as(new_file_path)
return if new_file_path == @temp_file
FileUtils.mv(@temp_file, new_file_path)
end
def get_new_geometry
self.class.new(@temp_file).geometry
end
def save!
FileUtils.mv(@temp_file, file)
end
def close
log "Removing temp file: #{@temp_file}"
FileUtils.rm_f(@temp_file)
end
private
def resize(w, h)
convert "-resize #{w}x#{h}"
end
def resize_and_crop(w, h, gravity)
gravity = self.class::GRAVITIES[gravity || 'c']
convert "-resize #{w}x#{h}^^ -gravity #{gravity} -crop #{w}x#{h}+0+0 +repage"
end
def crop(width, height, x = 0, y = 0, gravity)
raise ArgumentError, "you can't give a crop offset and gravity at the same time" if x != 0 and gravity
x = '+' + x unless x[/^[+-]/]
y = '+' + y unless y[/^[+-]/]
args = "-crop #{w}x#{h}#{x}#{y} +repage"
if gravity and g = self.class::GRAVITIES[gravity]
args = "-gravity #{gravity} #{args}"
end
convert args
end
def convert(args)
@temp_file = "/tmp/#{$$}.#{File.basename(file)}"
out = `convert "#{file}" #{args} "#{@temp_file}"`
end
def image_details
@image_details ||= identify(file)
end
def identify(path)
out = `identify -ping -format '%m %w %h' "#{path}"`
format, width, height = out.split
{ :format => format.downcase,
:width => width.to_i,
:height => height.to_i }
end
end
Version data entries
11 entries across 11 versions & 1 rubygems