Class: PSD::Renderer::Canvas

Inherits:
Object
  • Object
show all
Defined in:
lib/psd/renderer/canvas.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(node, width = nil, height = nil, color = ChunkyPNG::Color::TRANSPARENT) ⇒ Canvas

Returns a new instance of Canvas.



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# File 'lib/psd/renderer/canvas.rb', line 6

def initialize(node, width = nil, height = nil, color = ChunkyPNG::Color::TRANSPARENT)
  @node = node
  @pixel_data = @node.group? ? [] : @node.image.pixel_data
  
  @width = (width || @node.width).to_i
  @height = (height || @node.height).to_i
  @left = @node.left.to_i
  @right = @node.right.to_i
  @top = @node.top.to_i
  @bottom = @node.bottom.to_i

  @opacity = @node.opacity.to_f
  @fill_opacity = @node.fill_opacity.to_f

  @canvas = ChunkyPNG::Canvas.new(@width, @height, color)

  initialize_canvas unless @node.group?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

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



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# File 'lib/psd/renderer/canvas.rb', line 44

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

Instance Attribute Details

#bottom ⇒ Object (readonly)

Returns the value of attribute bottom.



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# File 'lib/psd/renderer/canvas.rb', line 4

def bottom
  @bottom
end

#canvas ⇒ Object

Returns the value of attribute canvas.



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# File 'lib/psd/renderer/canvas.rb', line 4

def canvas
  @canvas
end

#fill_opacity ⇒ Object (readonly)

Returns the value of attribute fill_opacity.



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# File 'lib/psd/renderer/canvas.rb', line 4

def fill_opacity
  @fill_opacity
end

#height ⇒ Object (readonly)

Returns the value of attribute height.



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# File 'lib/psd/renderer/canvas.rb', line 4

def height
  @height
end

#left ⇒ Object (readonly)

Returns the value of attribute left.



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# File 'lib/psd/renderer/canvas.rb', line 4

def left
  @left
end

#node ⇒ Object (readonly)

Returns the value of attribute node.



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# File 'lib/psd/renderer/canvas.rb', line 4

def node
  @node
end

#opacity ⇒ Object (readonly)

Returns the value of attribute opacity.



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# File 'lib/psd/renderer/canvas.rb', line 4

def opacity
  @opacity
end

#right ⇒ Object (readonly)

Returns the value of attribute right.



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# File 'lib/psd/renderer/canvas.rb', line 4

def right
  @right
end

#top ⇒ Object (readonly)

Returns the value of attribute top.



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# File 'lib/psd/renderer/canvas.rb', line 4

def top
  @top
end

#width ⇒ Object (readonly)

Returns the value of attribute width.



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# File 'lib/psd/renderer/canvas.rb', line 4

def width
  @width
end

Instance Method Details

#[](x, y) ⇒ Object 



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# File 'lib/psd/renderer/canvas.rb', line 41

def [](x, y); @canvas[x, y]; end

#[]=(x, y, value) ⇒ Object 



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# File 'lib/psd/renderer/canvas.rb', line 42

def []=(x, y, value); @canvas[x, y] = value; end

#paint_to(base) ⇒ Object 



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# File 'lib/psd/renderer/canvas.rb', line 25

def paint_to(base)
  PSD.logger.debug "Painting #{node.name} to #{base.node.debug_name}"

  apply_mask
  apply_clipping_mask
  apply_layer_styles
  apply_layer_opacity
  compose_pixels(base)
end