#==============================================================================
# ■ VXAce-RGSS3-31 和風レイアウト <item>          by Claimh
#------------------------------------------------------------------------------
# アイテム画面変更
#==============================================================================

#==============================================================================
# ■ Window_J_ItemCategory
#------------------------------------------------------------------------------
# 　アイテム画面またはショップ画面で、通常アイテムや装備品の分類を選択するウィ
# ンドウです。
#==============================================================================

class Window_J_ItemCategory < Window_J_Command
  #--------------------------------------------------------------------------
  # ● 公開インスタンス変数
  #--------------------------------------------------------------------------
  attr_reader   :item_window
  #--------------------------------------------------------------------------
  # ● オブジェクト初期化
  #--------------------------------------------------------------------------
  def initialize
    super(Graphics.width-fitting_width(1), 0)
  end
  #--------------------------------------------------------------------------
  # ● 桁数の取得
  #--------------------------------------------------------------------------
  def col_max
    return 4
  end
  #--------------------------------------------------------------------------
  # ● 縦に項目が並ぶときの空白の幅を取得
  #--------------------------------------------------------------------------
  def spacing
    return 0
  end
  #--------------------------------------------------------------------------
  # ● フレーム更新
  #--------------------------------------------------------------------------
  def update
    super
    @item_window.category = current_symbol if @item_window
  end
  #--------------------------------------------------------------------------
  # ● コマンドリストの作成
  #--------------------------------------------------------------------------
  def make_command_list
    add_command(Vocab::item,     :item)
    add_command(Vocab::weapon,   :weapon)
    add_command(Vocab::armor,    :armor)
    add_command(Vocab::key_item, :key_item)
  end
  #--------------------------------------------------------------------------
  # ● アイテムウィンドウの設定
  #--------------------------------------------------------------------------
  def item_window=(item_window)
    @item_window = item_window
    update
  end
end


#==============================================================================
# ■ Window_J_ItemList
#------------------------------------------------------------------------------
# 　アイテム画面で、所持アイテムの一覧を表示するウィンドウです。
#==============================================================================

class Window_J_ItemList < Window_J_Selectable
  #--------------------------------------------------------------------------
  # ● オブジェクト初期化
  #--------------------------------------------------------------------------
  def initialize(x, y, width, height)
    super
    @category = :none
    @data = []
  end
  #--------------------------------------------------------------------------
  # ● カテゴリの設定
  #--------------------------------------------------------------------------
  def category=(category)
    return if @category == category
    @category = category
    refresh
    self.oy = 0
  end
  #--------------------------------------------------------------------------
  # ● 桁数の取得
  #--------------------------------------------------------------------------
  def col_max
    return 2
  end
  #--------------------------------------------------------------------------
  # ● 項目数の取得
  #--------------------------------------------------------------------------
  def item_max
    @data ? @data.size : 1
  end
  #--------------------------------------------------------------------------
  # ● アイテムの取得
  #--------------------------------------------------------------------------
  def item
    @data && index >= 0 ? @data[index] : nil
  end
  #--------------------------------------------------------------------------
  # ● 選択項目の有効状態を取得
  #--------------------------------------------------------------------------
  def current_item_enabled?
    enable?(@data[index])
  end
  #--------------------------------------------------------------------------
  # ● アイテムをリストに含めるかどうか
  #--------------------------------------------------------------------------
  def include?(item)
    case @category
    when :item
      item.is_a?(RPG::Item) && !item.key_item?
    when :weapon
      item.is_a?(RPG::Weapon)
    when :armor
      item.is_a?(RPG::Armor)
    when :key_item
      item.is_a?(RPG::Item) && item.key_item?
    else
      false
    end
  end
  #--------------------------------------------------------------------------
  # ● アイテムを許可状態で表示するかどうか
  #--------------------------------------------------------------------------
  def enable?(item)
    $game_party.usable?(item)
  end
  #--------------------------------------------------------------------------
  # ● アイテムリストの作成
  #--------------------------------------------------------------------------
  def make_item_list
    @data = $game_party.all_items.select {|item| include?(item) }
    @data.push(nil) if include?(nil)
  end
  #--------------------------------------------------------------------------
  # ● 前回の選択位置を復帰
  #--------------------------------------------------------------------------
  def select_last
    select(@data.index($game_party.last_item.object) || 0)
  end
  #--------------------------------------------------------------------------
  # ● 項目の描画
  #--------------------------------------------------------------------------
  def draw_item(index)
    item = @data[index]
    if item
      rect = item_rect(index)
      rect.height -= 4
      draw_item_name(item, rect.x, rect.y, enable?(item))
      draw_item_number(rect, item)
    end
  end
  #--------------------------------------------------------------------------
  # ● アイテムの個数を描画
  #--------------------------------------------------------------------------
  def draw_item_number(rect, item)
    rect.y += rect.height - line_width
    rect.height = line_width
    contents.draw_text(rect, sprintf("%2d", $game_party.item_number(item)), 1)
  end
  #--------------------------------------------------------------------------
  # ● ヘルプテキスト更新
  #--------------------------------------------------------------------------
  def update_help
    @help_window.set_item(item)
  end
  #--------------------------------------------------------------------------
  # ● リフレッシュ
  #--------------------------------------------------------------------------
  def refresh
    make_item_list
    create_contents
    draw_all_items
  end
end


#==============================================================================
# ■ Scene_Item
#------------------------------------------------------------------------------
# 　アイテム画面の処理を行うクラスです。
#==============================================================================

class Scene_Item < Scene_ItemBase
  #--------------------------------------------------------------------------
  # ● カーソルが左列にあるかの判定
  #--------------------------------------------------------------------------
  def cursor_left?
#~     @item_window.index % 2 == 0
    true
  end
  #--------------------------------------------------------------------------
  # ● ヘルプウィンドウの作成
  #--------------------------------------------------------------------------
  def create_help_window
    @help_window = Window_J_Help.new
    @help_window.viewport = @viewport
  end
  #--------------------------------------------------------------------------
  # ● カテゴリウィンドウの作成
  #--------------------------------------------------------------------------
  def create_category_window
    @category_window = Window_J_ItemCategory.new
    @category_window.viewport = @viewport
    @category_window.help_window = @help_window
    @category_window.set_handler(:ok,     method(:on_category_ok))
    @category_window.set_handler(:cancel, method(:return_scene))
  end
  #--------------------------------------------------------------------------
  # ● アイテムウィンドウの作成
  #--------------------------------------------------------------------------
  def create_item_window
    x = @help_window.width
    w = Graphics.width - (@help_window.width + @category_window.width)
    @item_window = Window_J_ItemList.new(x, 0, w, Graphics.height)
    @item_window.viewport = @viewport
    @item_window.help_window = @help_window
    @item_window.set_handler(:ok,     method(:on_item_ok))
    @item_window.set_handler(:cancel, method(:on_item_cancel))
    @category_window.item_window = @item_window
  end
end