Class: Textbringer::PresentationMode

Inherits:
FundamentalMode
  • Object
show all
Defined in:
lib/textbringer/modes/presentation_mode.rb

Constant Summary collapse

PRESENTATION_MODE_MAP = 
Keymap.new

Instance Method Summary collapse

Constructor Details

#initialize(buffer) ⇒ PresentationMode

Returns a new instance of PresentationMode.



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# File 'lib/textbringer/modes/presentation_mode.rb', line 33

def initialize(buffer)
  super(buffer)
  buffer.keymap = PRESENTATION_MODE_MAP
  show_current_slide
end

Instance Method Details

#backward_slide ⇒ Object 



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# File 'lib/textbringer/modes/presentation_mode.rb', line 79

def backward_slide
  @buffer[:slide_list].backward_slide
  show_current_slide
end

#forward_slide ⇒ Object 



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# File 'lib/textbringer/modes/presentation_mode.rb', line 74

def forward_slide
  @buffer[:slide_list].forward_slide
  show_current_slide
end

#quit_presentation ⇒ Object 



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# File 'lib/textbringer/modes/presentation_mode.rb', line 84

def quit_presentation
  Window.delete_other_windows
  buffer = Buffer["*Code*"]
  if buffer
    buffer.kill
  end
  src_buffer = @buffer[:source_buffer]
  pos = @buffer[:slide_list].current.start_pos
  kill_buffer(@buffer)
  switch_to_buffer(src_buffer)
  src_buffer.goto_char(pos)
  Window.current.recenter
  Window.redraw
end

#show_current_slide ⇒ Object 



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# File 'lib/textbringer/modes/presentation_mode.rb', line 39

def show_current_slide
  Window.delete_other_windows
  Window.redraw
  @buffer.read_only = false
  begin
    @buffer.clear
    slide_list = buffer[:slide_list]
    slide = slide_list.current
    if slide
      @buffer.insert("\n" * @buffer[:presentation_top_margin])
      left_margin = " " * @buffer[:presentation_left_margin]
      @buffer.insert("#{left_margin}#{slide.title}\n\n")
      body = slide.body
      img_re = /!\[.*?\]\((.*\.(?:jpg|png))\)/
      img = body.slice(img_re, 1)
      code_re = /^```([a-z]+)?\n(.*?)^```$/m
      lang, code = body.scan(code_re)[0]
      s = body.sub(img_re, "").sub(code_re, "").
        gsub(/\[(.*?)\]\(https?:.*?\)/, '\1').
        strip.gsub(/^/, left_margin)
      @buffer.insert(s)
      beginning_of_buffer
      if img
        show_image(img, s)
      end
      if code
        show_code(code, lang)
      end
      show_slide_number(slide_list)
    end
  ensure
    @buffer.read_only = true
  end
end