Class: Gmagick
- Inherits:
-
Prawn::Images::Image
- Object
- Prawn::Images::Image
- Gmagick
- Defined in:
- lib/prawn/gmagick.rb
Instance Attribute Summary collapse
-
#bits ⇒ Object
Returns the value of attribute bits.
-
#gimage ⇒ Object
Returns the value of attribute gimage.
-
#height ⇒ Object
Returns the value of attribute height.
-
#scaled_height ⇒ Object
Returns the value of attribute scaled_height.
-
#scaled_width ⇒ Object
Returns the value of attribute scaled_width.
-
#width ⇒ Object
Returns the value of attribute width.
Class Method Summary collapse
Instance Method Summary collapse
- #build_pdf_object(document) ⇒ Object
-
#initialize(image_blob) ⇒ Gmagick
constructor
A new instance of Gmagick.
Constructor Details
Instance Attribute Details
#bits ⇒ Object
Returns the value of attribute bits.
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# File 'lib/prawn/gmagick.rb', line 5 def bits @bits end |
#gimage ⇒ Object
Returns the value of attribute gimage.
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# File 'lib/prawn/gmagick.rb', line 7 def gimage @gimage end |
#height ⇒ Object
Returns the value of attribute height.
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# File 'lib/prawn/gmagick.rb', line 5 def height @height end |
#scaled_height ⇒ Object
Returns the value of attribute scaled_height.
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# File 'lib/prawn/gmagick.rb', line 6 def scaled_height @scaled_height end |
#scaled_width ⇒ Object
Returns the value of attribute scaled_width.
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# File 'lib/prawn/gmagick.rb', line 6 def scaled_width @scaled_width end |
#width ⇒ Object
Returns the value of attribute width.
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# File 'lib/prawn/gmagick.rb', line 5 def width @width end |
Class Method Details
Instance Method Details
#build_pdf_object(document) ⇒ Object
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# File 'lib/prawn/gmagick.rb', line 20 def build_pdf_object(document) obj = document.ref!( Type: :XObject, Subtype: :Image, ColorSpace: gimage.colorspace, Height: height, Width: width, BitsPerComponent: bits ) obj << gimage.unpack alpha_mask = self.gimage.alpha_unpack if alpha_mask.unpack("C*").uniq.length > 1 smask_obj = document.ref!( :Type => :XObject, :Subtype => :Image, :Height => height, :Width => width, :BitsPerComponent => bits, :ColorSpace => :DeviceGray, :Decode => [0, 1] ) smask_obj.stream << alpha_mask obj.data[:SMask] = smask_obj end obj end |