Class: Prawn::Blank::Appearance

Inherits:
Object
  • Object
show all
Defined in:
lib/prawn/blank/appearance.rb

Defined Under Namespace

Classes: Item

Constant Summary collapse

STYLE = 
{
  
  :border_color => '202020',
  :background_color => 'ffffff',
  :border_width => 1
  
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(document) ⇒ Appearance

Returns a new instance of Appearance.



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# File 'lib/prawn/blank/appearance.rb', line 30

def initialize(document)
  @document = document
  @cache = {}
  #@style = STYLE.dup
end

Instance Attribute Details

#document ⇒ Object (readonly)

Returns the value of attribute document.



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# File 'lib/prawn/blank/appearance.rb', line 20

def document
  @document
end

Instance Method Details

#button(element) ⇒ Object Also known as: button_over, button_down 



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# File 'lib/prawn/blank/appearance.rb', line 48

def button(element)
  if !element.width or element.width <= 0
    element.width = 10
  end
  if !element.height or element.height <= 0
    element.height = 10
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  return cached(:checkbox_off, width, height, style, border_style) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        bw = border_style[:W]/2.0
        document.fill_and_stroke_rectangle( [bw, height - bw], width - border_style[:W], height - border_style[:W] )
      end
    end
  end
end

#checkbox_off(element) ⇒ Object Also known as: checkbox_off_over, checkbox_off_down 



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# File 'lib/prawn/blank/appearance.rb', line 76

def checkbox_off(element)
  if !element.width or element.width <= 0
    element.width = 10
  end
  if !element.height or element.height <= 0
    element.height = 10
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  return cached(:checkbox_off, width, height, style, border_style) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        bw = border_style[:W]/2.0
        document.fill_and_stroke_rectangle( [bw, height - bw], width - border_style[:W], height - border_style[:W] )
      end
    end
  end
end

#checkbox_on(element) ⇒ Object Also known as: checkbox_on_over, checkbox_on_down 



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# File 'lib/prawn/blank/appearance.rb', line 104

def checkbox_on(element)
  if !element.width or element.width <= 0
    element.width = 10
  end
  if !element.height or element.height <= 0
    element.height = 10
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  return cached(:checkbox_on, width, height, style, border_style) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        bw = border_style[:W]/2.0
        document.fill_and_stroke_rectangle( [bw, height - bw], width - border_style[:W], height - border_style[:W] )
        document.stroke_line(0,0,width, height)
        document.stroke_line(width,0,0, height)
      end
    end
  end
end

#radio_off(element) ⇒ Object Also known as: radio_off_over, radio_off_down 



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# File 'lib/prawn/blank/appearance.rb', line 134

def radio_off(element)
  if !element.width or element.width <= 0
    element.width = 10
  end
  if !element.height or element.height <= 0
    element.height = 10
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  return cached(:radio_off, width, height, style, border_style) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        rx = (width / 2.0)
        ry = (height / 2.0)
        document.fill_and_stroke_ellipse_at([rx,ry], rx-border_style[:W], ry-border_style[:W])
      end
    end
  end
end

#radio_on(element) ⇒ Object Also known as: radio_on_over, radio_on_down 



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# File 'lib/prawn/blank/appearance.rb', line 163

def radio_on(element)
  if !element.width or element.width <= 0
    element.width = 10
  end
  if !element.height or element.height <= 0
    element.height = 10
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  return cached(:radio_on, width, height, style, border_style) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        rx = (width / 2.0)
        ry = (height / 2.0)
        document.fill_and_stroke_ellipse_at([rx,ry], rx-border_style[:W], ry-border_style[:W])
        
        document.fill_color( *denormalize_color(style[:BC]) )
        document.fill_ellipse_at([rx,ry], rx-border_style[:W]-2, ry-border_style[:W]-2)
      end
    end
  end
end

#render(dict) ⇒ Object 



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# File 'lib/prawn/blank/appearance.rb', line 36

def render(dict)
  dict = {:Subtype => :Form,
  :Resources => {:ProcSet => [:PDF, :ImageC, :ImageI, :ImageB]}}.merge(dict)
  
  result = @document.ref!(dict)
  @document.state.page.stamp_stream(result) do
    yield
  end
  @document.acroform.add_resources(result.data[:Resources])
  return result
end

#text_field(element) ⇒ Object 



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# File 'lib/prawn/blank/appearance.rb', line 195

def text_field(element)
  
  text_style = element.text_style ||= Prawn::TextStyle(@document,"Helvetica",9,'000000')
  border_style = element.border_style ||= Prawn::BorderStyle(@document,1)
  
  if !element.width or element.width <= 0
    element.width = 100
  end
  if !element.height or element.height <= 0
    element.height = text_style.size + 6 + 2 * border_style[:W]
  end
  width = element.width
  height = element.height
  style = element.style ||= Prawn::ColorStyle(@document,'ffffff','000000')
  multiline = element.multiline
  value = element.value
  return cached(:text_field, width, height, style, border_style, text_style, multiline, value) do
    render( :BBox => [0, 0, width, height] ) do
      document.canvas do
      document.save_font do
        # render background
        document.fill_color( *denormalize_color(style[:BG]) )
        document.stroke_color( *denormalize_color(style[:BC]) )
        document.line_width(border_style[:W])
        bw = border_style[:W]/2.0
        document.fill_and_stroke_rectangle( [bw, height - bw], width - border_style[:W], height - border_style[:W])
        if text_style
          document.font(text_style.font, :size=>text_style.size )
          document.fill_color( *text_style.color )
        end
        if value
          document.draw_text(value, :at =>[border_style[:W]+1, [1,height - document.font_size - border_style[:W]- 1.5].max ] )
        end
      end
      end
    end
  end
end