Class: Bash_Visual::HorizontalScroll

Inherits:
Scroll
  • Object
show all
Defined in:
lib/bash-visual/horizontal_scroll.rb

Constant Summary collapse

DEFAULT_SEPARATOR = 
"\u2502"

Constants inherited from Scroll

Scroll::BACKWARD, Scroll::BEGINNING, Scroll::ENDING, Scroll::FORWARD

Instance Attribute Summary

Attributes inherited from Scroll

#console

Attributes included from FixedObject

#height, #width, #x, #y

Instance Method Summary collapse

Methods inherited from Scroll

#add, form_block, #prefix, #prefix=, #scroll

Methods included from FixedObject

#position, #size

Constructor Details

#initialize(options) ⇒ HorizontalScroll

Returns a new instance of HorizontalScroll.



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# File 'lib/bash-visual/horizontal_scroll.rb', line 6

def initialize options
  super

  @separator =
    if @separator == true;                  DEFAULT_SEPARATOR
    elsif @s.instance_of? String;   @separator[0]
    else                                    nil
  end
end

Instance Method Details

#get_x_position(available_area_width, message_width = 0) ⇒ Object 



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# File 'lib/bash-visual/horizontal_scroll.rb', line 16

def get_x_position available_area_width, message_width = 0
  if (@start == BEGINNING)
    @x + (@width - available_area_width)
  else
    @x + available_area_width - message_width
  end
end

#print_message(message, font, available_area) ⇒ Object 



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

def print_message message, font, available_area

  available_area_width, available_area_height = available_area

  block_width = msg_block_width =
      case
        when @fixed_message_block_size
          @fixed_message_block_size
        when @max_message_block_size
          @max_message_block_size
        else
          available_area_width
      end

  msg_block_width -= @separator.size if @separator
  msg_block_width = available_area_width if msg_block_width > available_area_width

  msg_block_height = @adapt ? available_area_height : 1

  message = Scroll.form_block message, [msg_block_width, msg_block_height], @fixed_message_block_size
  if @separator
    message.map! do |row|
      row + @separator
    end
  end

  write(get_x_position(available_area_width, block_width), @y, message, font)

  [available_area_width - block_width, available_area_height]
end