Module: Bash_Visual::Painter

Included in:
Console
Defined in:
lib/bash-visual/painter.rb

Constant Summary collapse

BORDER_UTF =

see: en.wikipedia.org/wiki/Box-drawing_characters

["\u250C", "\u2500", "\u2510",
"\u2502", "\u2502",
"\u2514", "\u2500", "\u2518"]
BORDER_UTF_ROUND = 
["\u256D", "\u2500", "\u256E",
"\u2502", "\u2502",
"\u2570", "\u2500", "\u256F"]
BORDER_UTF_DOUBLE = 
["\u2554", "\u2550", "\u2557",
"\u2551", "\u2551",
"\u255A", "\u2550", "\u255D"]
@@default_window_wrap = 
["\u257C ", " \u257E"]

Instance Method Summary collapse

Instance Method Details

#draw_border(*positioning, &extra) ⇒ Object

Parameters:

  • positioning (Array) 


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# File 'lib/bash-visual/painter.rb', line 45

def draw_border(*positioning, &extra)
  x, y, width, height = prepare_positioning positioning do |x2, y2, width2, height2|
    next x2, y2, width2 + 2, height2 + 2
  end

  raise 'width,height must be great than 2' if (width < 2 or height < 2)

  params = block_given? ? yield : {}
  border = params[:border] ? params[:border] : BORDER_UTF
  font   = params[:font] ? params[:font] : @font

  bash = @builder.save_position
  bash << @builder.set_position(x, y)
  body_width = width - 2

  bash << @builder.write(border[0] + border[1] * body_width + border[2])

  row = @builder.move_position(-width, 1)
  row << @builder.write(border[3] + ' ' * body_width + border[4])
  bash << row*(height - 2)

  bash << @builder.move_position(-width, 1)
  bash << @builder.write(border[5] + border[6] * body_width + border[7])

  bash << @builder.restore_position
  print @builder.write(bash, font)
end

#draw_filled_rectangle(*positioning, color) ⇒ Object

Parameters:

  • positioning (Array)
  • color (Integer) 


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# File 'lib/bash-visual/painter.rb', line 26

def draw_filled_rectangle(*positioning, color)
  x, y, width, height = prepare_positioning positioning
  raise 'width,height must be great than 1' if (width < 1 or height < 1)

  color = color.background if color.is_a? Font
  font = Font.new :std, :white, color

  bash = @builder.save_position
  bash << @builder.set_position(x+1, y+1)

  row = @builder.write(' ' * width)
  row << @builder.move_position(-width, 1)
  bash << row*height

  bash << @builder.restore_position
  print @builder.write(bash, font)
end

#draw_window(*positioning, text, &params) ⇒ Object

Parameters:

  • positioning (Array)
  • text (String) 


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# File 'lib/bash-visual/painter.rb', line 76

def draw_window(*positioning, text, &params)

  x, y, width, height = prepare_positioning positioning do |x2, y2, width2, height2|
    next x2, y2, width2 + 2, height2 + 2
  end

  raise 'width,height must be great than 2' if (width < 3 or height < 3)

  params = block_given? ? yield : {}


  wrap   = params[:wrap].nil? ? @@default_window_wrap : params[:wrap]
  border = params[:border] ? params[:border] : BORDER_UTF
  font   = params[:font] ? params[:font] : @font

  body_width = width - 2
  text = if wrap
           wrap_size  = wrap[0].size + wrap[1].size
           text_width = body_width - wrap_size
           if text_width < 0
             text.to_s.slice(0, body_width)
           else
             wrap[0] + text.to_s[0, text_width] + wrap[1]
           end
         else
           text.to_s.slice(0, body_width)
         end

  text = text.center(body_width, border[1])

  bash = @builder.save_position
  bash << @builder.set_position(x, y)

  bash << @builder.write(border[0] + text + border[2])

  row = @builder.move_position(-width, 1)
  row << @builder.write(border[3] + ' ' * body_width + border[4])
  bash << row*(height - 2)

  bash << @builder.move_position(-width, 1)
  bash << @builder.write(border[5] + border[6] * body_width + border[7])

  bash << @builder.restore_position
  print @builder.write(bash, font)
end