Class: Aniview::View::Menu

Inherits:
Object
  • Object
show all
Includes:
Util, Observable
Defined in:
lib/aniview/view/menu.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Util

decode_object, encode_object, error_message, format_duration, format_progress, format_size, mounted_filesystem?, parse_format, readline

Constructor Details

#initialize(refresh_function: :items, interface:, name:, pref:, format:, term:, children: true, visible: false, logger: nil) ⇒ Menu

Returns a new instance of Menu.



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# File 'lib/aniview/view/menu.rb', line 15

def initialize(refresh_function: :items, interface:, name:, pref:, format:, term:, children: true, visible: false, logger: nil)
  @attributes       = {}

  @logger = logger

  @refresh_function = refresh_function
  @interface        = interface
  @attributes["t"]  = name
  @pref             = pref
  @format           = format
  @term             = term
  @children         = children

  @expanded         = -1
  @selected         = 0

  @items_formatted  = {}
  @items_hash       = {}
  @hashmap          = {}
  @lu               = 0

  @oldRows          = @term.rows

  refresh

  @view             = [0, @term.rows - 3]

  @updated = true

  if @interface.singleton_class.include? Observable
    @interface.add_observer(self, :refresh)
  end
end

Instance Attribute Details

#attributes ⇒ Object

Returns the value of attribute attributes.



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# File 'lib/aniview/view/menu.rb', line 12

def attributes
  @attributes
end

#format ⇒ Object

Returns the value of attribute format.



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# File 'lib/aniview/view/menu.rb', line 13

def format
  @format
end

Instance Method Details

#adjustView ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 176

def adjustView
  buffer = 2
  bottom = @term.rows-3
    
  diff = 0
  if @selected < @view[0] + buffer #and @selected > buffer
    while @selected < @view[0] + buffer
      @view[0]-=1
      @view[1]-=1
    end
  elsif @selected > @view[1] - (buffer+1) and @selected < getLen - buffer
    while @selected > @view[1] - (buffer+1) and @selected < getLen - buffer
      @view[0]+=1
      @view[1]+=1
    end
  end
    
  diff = 0      - @view[0] if @view[0] < 0
  diff = bottom - @view[1] if @view[1] < bottom
    
  @view[0] += diff
  @view[1] += diff
end

#auto_update(s: :start) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 59

def auto_update s: :start
  case s
  when :start
    @update_thread = Thread.new do
      while true
        refresh
        changed
        notify_observers
        sleep 1
      end
    end
  when :stop
    @update_thread.exit if @update_thread
  end
end

#change_screen_size(redraw: true) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 84

def change_screen_size redraw: true
  #@term.rows = lines
  #@term.cols = cols
  @items_formatted = {}
  @items_hash = {}
  @lu = 0
  refresh
  
  #if @term.rows > @oldRows

  diff = @term.rows - @oldRows
  #@view[0] += diff
  @view[1] += diff
    
  @oldRows = @term.rows
  adjustView
  draw if redraw
end

#color(index) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 168

def color(index)
  if index == @selected
    return Aniview::View::Color.public_send(@pref.get("clr")["selected"])
  else 
    return Aniview::View::Color.public_send(@pref.get("clr")["secondary"])
  end
end

#control(key) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 306

def control(key)
  sel = resolve_selected
  if key == @pref.get("keybindings")["menu_nav_up"]
    moveCursor("up")
  elsif key == @pref.get("keybindings")["menu_nav_down"]
    moveCursor("down")
  else
    customControl(key, sel)
  end
  changed
  notify_observers
end

#customControl(key, sel) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 319

def customControl(key, sel); end

#draw ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 256

def draw

  #refresh @items_formatted
  #refreshFormats

  #set the view
  line_on = @view[0]
  lines_to_draw = @view[1]

  #print the menu title
  lo="\e[1;1H"
  print lo + @cl["m"] + @title_formatted + "\e[K"
    
  #get the resolved start positions
  resolved_start_position = resolve_selected line_on
  outer_index = resolved_start_position["out"]
  inner_index = resolved_start_position["in"]
  
  # if we are starting in the expanded portion, skip its parent
  if resolved_start_position["in_expanded"]
    outer_index+=1
  end
    
  offset=line_on-1
    
  while line_on < lines_to_draw
    
    in_outer_region    = ! (line_on >= getLen)
    in_expanded_region = resolve_selected(line_on)["in_expanded"]
    line               = line_on-offset+1
    selected           = line_on == @selected
    
    cl  = ""
    cl = @cl["s"] if selected
    lo = "\e[#{line};1H" + cl
    
    if in_expanded_region and @children
      print @cl["2"] + lo + String(@items_formatted.values[@expanded][inner_index]) + "\e[K" unless @items_formatted.values[@expanded] == nil
      inner_index+=1
    elsif in_outer_region
      print @cl["1"] + lo + String(@items_formatted.keys[outer_index]) + "\e[K"
      outer_index+=1
    else
      print "\e[#{line};1H\e[2K\n"
    end
    
    line_on+=1
  end
end

#expand(i) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 113

def expand(i)
  return if i > @items.length
  if @expanded == i
    @selected = @expanded
    @expanded = -1
  else
    @selected = i
    @expanded = i
  end
  fixCursor
  adjustView
  changed
  notify_observers
end

#fixCursor ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 152

def fixCursor
  #wrap selector
  #@selected = getLen - 1 if @selected < 0
  #@selected = 0 if @selected >= getLen
  #
  #nowrap
  @selected = 0 if @selected < 0
  @selected = getLen - 1 if @selected >= getLen
end

#getLen ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 162

def getLen
  len = @items.length
  len += @items.values[@expanded].length if @expanded >= 0
  return len
end

#interface ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 208

def interface
  @interface
end

#moveCursor(dir) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 145

def moveCursor(dir)
  @selected -= 1 if dir == "up"
  @selected += 1 if dir == "down"
  adjustView
  fixCursor
end

#pause ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 55

def pause
  auto_update s: :stop
end

#refresh ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 103

def refresh
  @items = @interface.send(@refresh_function)
  refreshFormats
  refresh_attributes
  @expanded = -1 if @children and @items.values[@expanded] == nil
  fixCursor
  changed
  notify_observers
end

#refresh_attributes ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 321

def refresh_attributes; end

#refreshFormats ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 212

def refreshFormats
  @cl = {
    "s" => Aniview::View::Color.public_send(@pref.get("clr")["selected"]),
    "1" => Aniview::View::Color.public_send(@pref.get("clr")["primary"]),
    "2" => Aniview::View::Color.public_send(@pref.get("clr")["secondary"]),
    "m" => Aniview::View::Color.public_send(@pref.get("clr")["main"]),
  }

  nif = {}

  @items.each { |parent, children|

    parent_formatted = Util.parse_format(
      @pref.get(@format)["parent"],
      parent.attributes,
      @term.cols
    )
    
    children_formatted = []
    if @children
      children.each { |child|
        children_formatted << Util.parse_format(
          @pref.get(@format)["child"],
          child.attributes,
          @term.cols
        )
      }
    end
    
    nif.merge!(parent_formatted => children_formatted)
  }
    
  @items_formatted = nif
    
  @title_formatted = Util.parse_format(
    @pref.get(@format)["title"],
    @attributes,
    @term.cols
  )

  changed
  notify_observers
end

#resolve_selected(resolve_me = @selected) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 128

def resolve_selected(resolve_me=@selected)
  in_expanded=false
  inside = 0
  outside = resolve_me
  if @expanded > -1
    if resolve_me > @expanded and resolve_me <= (@items.values[@expanded].length + @expanded)
      outside = @expanded
      inside = resolve_me - @expanded -  1
      in_expanded=true
    elsif resolve_me > @expanded
      outside = resolve_me - @items.values[@expanded].length
    end
  end
    
  return Hash["out" => outside, "in" => inside, "in_expanded" => in_expanded]
end

#rfunc=(new_method) ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 75

def rfunc=(new_method)
  @refresh_function = new_method
  @items_formatted = {}
  @items_hash = {}
  @lu = 0
  refresh
  refreshFormats
end

#unpause ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 49

def unpause
  unless @interface.singleton_class.include? Observable
    auto_update s: :start
  end
end

#updated! ⇒ Object 



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# File 'lib/aniview/view/menu.rb', line 204

def updated!
  @updated = true
end

#updated? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/aniview/view/menu.rb', line 200

def updated?
  @updated and !(@updated = !@updated)
end