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(position, size, params = {}) ⇒ Object

Parameters:

  • position (Array)
  • size (Array) 


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

def draw_border(position, size, params = {})
  x, y          = *position
  width, height = *size
  raise 'width,height must be great than 1' if (width < 2 or height < 2)

  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(position, size, color = :white) ⇒ Object

Parameters:

  • position (Array)
  • size (Array) 


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# File 'lib/bash-visual/painter.rb', line 24

def draw_filled_rectangle(position, size, color = :white)
  x, y          = *position
  width, height = *size
  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(position, size, text = '', params = {}) ⇒ Object

Parameters:

  • position (Array)
  • size (Array)
  • text (String) (defaults to: '')
  • params (Hash) (defaults to: {}) 


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# File 'lib/bash-visual/painter.rb', line 74

def draw_window(position, size, text = '', params = {})
  x, y          = *position
  width, height = *size
  raise 'width,height must be great than 2' if (width < 3 or height < 3)

  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
           wrap[0] + text.to_s[0, text_width] + wrap[1]
         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