Class: Prune::Elements::Page

Inherits:
Base
  • Object
show all
Defined in:
lib/prune/elements/page.rb

Constant Summary collapse

FONT_OPTIONS = 
[
  :name,          # Font name.
  :size,          # Font size.
  :bold,          # Bold(boolean).
  :italic,        # Italic(boolean).
  :mode,          # Font color mode.
  :fill_color,    # Color inside font.
  :stroke_color,  # Color around font.
]

Instance Attribute Summary collapse

Attributes inherited from Base

#document

Instance Method Summary collapse

Methods inherited from Base

#reference, #register, #to_s

Methods included from Functions

#mm_to_pt, #pt_to_mm

Methods included from PObjects

pa, pd, ph, pl, pn, ps

Constructor Details

#initialize(document, media_box, options = {}) ⇒ Page

Initialize.



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# File 'lib/prune/elements/page.rb', line 28

def initialize(document, media_box, options = {})
  super(document)
  # Set stream.
  @stream = Stream.new(@document)

  # Set dictionary.
  @media_box = media_box
  @content = pd(
    pn(:Type) => pn(:Page),
    pn(:Parent) => @document.pages.reference,
    pn(:MediaBox) => pa(*@media_box),
    pn(:Contents) => @stream.reference,
    pn(:Resources) => pd(
      pn(:ProcSet) => @document.proc_set.reference))

  # Set page margin by option in millimeters(default 10mm).
  %w[top left right bottom].each do |position|
    value = options["margin_#{position}".to_sym] || 10.0
    value = mm_to_pt(value)
    instance_variable_set("@margin_#{position}", value)
  end

  # Set initial position.
  @x = @margin_left
  @y = @media_box[3] - @margin_top

  # Set page default font.
  initialize_font(options)
  # Initialize page shapes.
  @shape_ids = []
  @shapes = {}
  # Register element to document.
  register
end

Instance Attribute Details

#current_font ⇒ Object

Returns the value of attribute current_font.



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# File 'lib/prune/elements/page.rb', line 11

def current_font
  @current_font
end

#default_font ⇒ Object (readonly)

Returns the value of attribute default_font.



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# File 'lib/prune/elements/page.rb', line 6

def default_font
  @default_font
end

#margin_bottom ⇒ Object

Returns the value of attribute margin_bottom.



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# File 'lib/prune/elements/page.rb', line 15

def margin_bottom
  @margin_bottom
end

#margin_left ⇒ Object

Returns the value of attribute margin_left.



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# File 'lib/prune/elements/page.rb', line 12

def margin_left
  @margin_left
end

#margin_right ⇒ Object

Returns the value of attribute margin_right.



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# File 'lib/prune/elements/page.rb', line 13

def margin_right
  @margin_right
end

#margin_top ⇒ Object

Returns the value of attribute margin_top.



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# File 'lib/prune/elements/page.rb', line 14

def margin_top
  @margin_top
end

#shape_ids ⇒ Object

Returns the value of attribute shape_ids.



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# File 'lib/prune/elements/page.rb', line 7

def shape_ids
  @shape_ids
end

#shapes ⇒ Object

Returns the value of attribute shapes.



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# File 'lib/prune/elements/page.rb', line 8

def shapes
  @shapes
end

#x ⇒ Object

Returns the value of attribute x.



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# File 'lib/prune/elements/page.rb', line 9

def x
  @x
end

#y ⇒ Object

Returns the value of attribute y.



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# File 'lib/prune/elements/page.rb', line 10

def y
  @y
end

Instance Method Details

#height ⇒ Object

Get height of the page(pt).



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# File 'lib/prune/elements/page.rb', line 74

def height
  @media_box[3] - @margin_top - @margin_bottom
end

#set_font(key, font) ⇒ Object

Set font to use.



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# File 'lib/prune/elements/page.rb', line 79

def set_font(key, font)
  # Add :Font key to content hash unless there is no key
  unless @content[pn(:Resources)].has_key?(pn(:Font))
    @content[pn(:Resources)].update(pn(:Font) => pd)
  end
  # Add font symbol to :Font hash
  unless @content[pn(:Resources)][pn(:Font)].has_key?(key)
    @content[pn(:Resources)][pn(:Font)].update(key => font.reference)
  end
end

#stream ⇒ Object

Get stream object.



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# File 'lib/prune/elements/page.rb', line 64

def stream
  @stream.stream
end

#width ⇒ Object

Get width of the page(pt).



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# File 'lib/prune/elements/page.rb', line 69

def width
  @media_box[2] - @margin_left - @margin_right
end