Parent

Prawn::GraphicStateStack

Attributes

stack[RW]

Public Class Methods

new(previous_state = nil) click to toggle source
# File lib/prawn/document/graphics_state.rb, line 13
def initialize(previous_state = nil)
  self.stack = [GraphicState.new(previous_state)]
end

Public Instance Methods

current_state() click to toggle source
# File lib/prawn/document/graphics_state.rb, line 29
def current_state
  stack.last
end
empty?() click to toggle source
# File lib/prawn/document/graphics_state.rb, line 37
def empty?
  stack.empty?
end
present?() click to toggle source
# File lib/prawn/document/graphics_state.rb, line 33
def present?
  stack.size > 0
end
restore_graphic_state() click to toggle source
# File lib/prawn/document/graphics_state.rb, line 21
def restore_graphic_state
  if stack.empty?
    raise Prawn::Errors::EmptyGraphicStateStack, 
      "\n You have reached the end of the graphic state stack" 
  end
  stack.pop
end
save_graphic_state(graphic_state = nil) click to toggle source
# File lib/prawn/document/graphics_state.rb, line 17
def save_graphic_state(graphic_state = nil)
  stack.push(GraphicState.new(graphic_state || current_state))
end

[Validate]

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