Class: PSD::Node::Layer

Inherits:
PSD::Node show all
Includes:
LockToOrigin
Defined in:
lib/psd/node_layer.rb

Constant Summary

Constants inherited from PSD::Node

PROPERTIES

Instance Attribute Summary collapse

Attributes inherited from PSD::Node

#children, #force_visible, #parent

Instance Method Summary collapse

Methods included from LockToOrigin

#lock_to_origin

Methods inherited from PSD::Node

#document_dimensions, #group?, #hidden?, #layer?, #psd, #visible?

Methods included from BuildPreview

#build_png, #orig_to_png, #to_png

Methods included from Image::Export::PNG

#mask_to_png, #save_as_png, #to_png, #to_png_with_mask

Methods included from Search

#children_at_path, #filter_by_comp

Methods included from Ancestry

#ancestors, #childless?, #depth, #descendants, #has_children?, #has_siblings?, #next_sibling, #only_child?, #path, #prev_sibling, #root, #root?, #siblings, #subtree

Constructor Details

#initialize(layer) ⇒ Layer

Stores a reference to the PSD::Layer



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# File 'lib/psd/node_layer.rb', line 10

def initialize(layer)
  super([])
  
  @layer = layer
  layer.node = self
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &block) ⇒ Object

If the method is missing, we blindly send it to the layer. The layer handles the case in which the method doesn’t exist.



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# File 'lib/psd/node_layer.rb', line 77

def method_missing(method, *args, &block)
  @layer.send(method, *args, &block)
end

Instance Attribute Details

#layer ⇒ Object (readonly)

Returns the value of attribute layer.



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# File 'lib/psd/node_layer.rb', line 7

def layer
  @layer
end

Instance Method Details

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/psd/node_layer.rb', line 55

def empty?
  width == 0 || height == 0
end

#hide! ⇒ Object

Tries to hide the layer by moving it way off canvas.



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# File 'lib/psd/node_layer.rb', line 39

def hide!
  # TODO actually mess with the blend modes instead of
  # just putting things way off canvas
  return if @hidden_by_kelly
  translate(100000, 10000)
  @hidden_by_kelly = true
end

#scale_path_components(xr, yr) ⇒ Object

Attempt to scale the path components of the layer.



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# File 'lib/psd/node_layer.rb', line 34

def scale_path_components(xr, yr)
  @layer.scale_path_components(xr, yr)
end

#show! ⇒ Object

Tries to re-show the canvas by moving it back to it’s original position.



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# File 'lib/psd/node_layer.rb', line 48

def show!
  if @hidden_by_kelly
    translate(-100000, -10000)
    @hidden_by_kelly = false
  end
end

#to_hash ⇒ Object

Exports this layer to a Hash.



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# File 'lib/psd/node_layer.rb', line 60

def to_hash
  super.merge({
    type: :layer,
    text: @layer.text,
    ref_x: @layer.reference_point.x,
    ref_y: @layer.reference_point.y,
    mask: @layer.mask.to_hash,
    image: {
      width: @layer.image.width,
      height: @layer.image.height,
      channels: @layer.channels_info
    }
  })
end

#translate(x = 0, y = 0) ⇒ Object

Attempt to translate the layer.



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# File 'lib/psd/node_layer.rb', line 29

def translate(x=0, y=0)
  @layer.translate x, y
end