Class: Griddle::Processor::ImageMagick

Inherits:
Object
  • Object
show all
Defined in:
lib/griddle/processor/image_magick.rb

Instance Method Summary collapse

Instance Method Details

#crop ⇒ Object 



5
6
7
 
# File 'lib/griddle/processor/image_magick.rb', line 5

def crop
  `convert #{File.expand_path(@destination_file.path)} -crop #{geometry} -gravity Center #{@destination_file.path}`
end

#crop? ⇒ Boolean

Returns:

  • (Boolean) 


9
10
11
 
# File 'lib/griddle/processor/image_magick.rb', line 9

def crop?
  @style.geometry =~ /#/
end

#file_height ⇒ Object 



25
26
27
 
# File 'lib/griddle/processor/image_magick.rb', line 25

def file_height
  file_dimensions.last
end

#file_width ⇒ Object 



13
14
15
 
# File 'lib/griddle/processor/image_magick.rb', line 13

def file_width
  file_dimensions.first
end

#fit(geo = geometry) ⇒ Object 



17
18
19
 
# File 'lib/griddle/processor/image_magick.rb', line 17

def fit(geo = geometry)
  `convert #{File.expand_path(@file.path)} -resize #{geo} #{@destination_file.path}`
end

#geometry ⇒ Object 



21
22
23
 
# File 'lib/griddle/processor/image_magick.rb', line 21

def geometry
  @geometry ||= @style.geometry.gsub(/#/,'')
end

#height ⇒ Object 



29
30
31
 
# File 'lib/griddle/processor/image_magick.rb', line 29

def height
  dimensions.last
end

#process_image(file, style) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/griddle/processor/image_magick.rb', line 33

def process_image file, style
  @style = style
  @file = file
  @destination_file = Tempfile.new @file.original_filename
  if crop?
    fit(resize_geometry_for_crop)
    crop
  else
    fit
  end
  @destination_file
end

#width ⇒ Object 



46
47
48
 
# File 'lib/griddle/processor/image_magick.rb', line 46

def width
  dimensions.first
end