Class: NPlaylist

Inherits:
Object
  • Object
show all
Defined in:
lib/ncurses_ui.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(scr, row, col, color, active_color, w, h, l) ⇒ NPlaylist

Returns a new instance of NPlaylist.



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# File 'lib/ncurses_ui.rb', line 317

def initialize scr, row, col, color, active_color, w, h, l
  @list = l
  @row = row
  @col = col
  @width = w
  @height = h
  @color = color
  @active_color = active_color
  @apos = -1
  @win = Curses::Window.new height, width, @row, @col
  @dirty = true
  refresh
end

Instance Attribute Details

#dirty ⇒ Object

Returns the value of attribute dirty.



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# File 'lib/ncurses_ui.rb', line 316

def dirty
  @dirty
end

#list=(value) ⇒ Object (writeonly)

Sets the attribute list

Parameters:

  • value —

    the value to set the attribute list to.



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# File 'lib/ncurses_ui.rb', line 315

def list=(value)
  @list = value
end

Instance Method Details

#active=(pos) ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 361

def active=(pos)
  @apos = pos
  @dirty = true
end

#close ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 409

def close
  @win.close
end

#height ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 340

def height
  h = [@row + @height, Curses.lines].min - @row
  if h <= 0
    Curses.lines - @row + h
  else
    h
  end
end

#height=(val) ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 355

def height=(val)
  @height = val
  resize
  refresh
end

#refresh ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 371

def refresh
  return unless @dirty
  if !@list.is_a?(Array) || @list.empty?
    Nutils.print @win, 1, 2, "Empty playlist", @color, width - 3
  else
    r = 1
    size = height - 2
    offset = ([[size/2.0, @apos].max, [@list.size, size].max-(size/2.0)].min - size/2.0).ceil

    @list[offset..@list.size].each do |t|
      tl = t["title"]
      if @apos == r - 1 + offset
        tl = ">#{tl}"
        color = @active_color
      else
        tl = " #{tl}"
        color = @color
      end
      tr = "[%6s]" % Nutils.timestr(t["duration"]) 
      tr = "[D]#{tr}" if t["downloadable"]
      wr = tr.size
      wl = width - 3- wr
      Nutils.print @win, r, 1, tl, color, wl+1
      Nutils.print @win, r, 2+wl, tr, color, wr
      r += 1
      if(r >= height - 1)
        # print arrow down
        break
      end
    end
  end
  @win.attron(Colors.map(@color)) if @color
  @win.box 0, 0
  @win.attroff(Colors.map(@color)) if @color
  @win.refresh
  @dirty = false
end

#resize ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 366

def resize
  @win.resize height, width
  @dirty = true
end

#width ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 331

def width
  w = [@col + @width, Curses.cols].min - @col
  if w <= 0
    Curses.cols - @col + w
  else
    w
  end
end

#width=(val) ⇒ Object 



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# File 'lib/ncurses_ui.rb', line 349

def width=(val)
  @width = val
  resize
  refresh
end