#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# DESCRIPTION: Compute and output the bounding box of a cell (all layers)
#
# Run the script with
#   klayout -rm cell_bbox.rbm ...
# or put the script as "cell_bbox.rbm" into the installation path (on Unix for version <=0.21:
# set $KLAYOUTPATH to the installation folder).
#

class MenuAction < RBA::Action
  def initialize( title, shortcut, &action )
    self.title = title
    self.shortcut = shortcut
    @action = action
  end
  def triggered
    @action.call( self )
  end
private
  @action
end

$cell_bbox_handler = MenuAction.new( "Cell Bounding Box", "" ) {

  app = RBA::Application.instance

  mw = app.main_window
  view = mw.current_view
  cv = view.cellview(view.active_cellview_index)

  if !cv.is_valid?
    return
  end

  cell = cv.cell
  dbu = cv.layout.dbu

  text = "Cell: #{cv.layout.cell_name(cv.cell_index)}\n\n"
  text += "xmin: #{cell.bbox.left*dbu} micron\n"
  text += "ymin: #{cell.bbox.bottom*dbu} micron\n"
  text += "xmax: #{cell.bbox.right*dbu} micron\n"
  text += "ymax: #{cell.bbox.top*dbu} micron\n\n"
  text += "width: #{cell.bbox.width*dbu} micron\n" 
  text += "height: #{cell.bbox.height*dbu} micron" 

  RBA::MessageBox::info("Cell Information", text, RBA::MessageBox::b_ok)
}

app = RBA::Application.instance
mw = app.main_window

menu = mw.menu
menu.insert_item("tools_menu.end", "cell_bbox", $cell_bbox_handler)