gtk2_ardour/control_point_dialog.cc

   1 /*
   2     Copyright (C) 2000-2008 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "control_point_dialog.h"
  21 #include "control_point.h"
  22 #include "automation_line.h"
  23 #include "i18n.h"
  24 #include <gtkmm/stock.h>
  25
  26 /**
  27  *    ControlPointDialog constructor.
  28  *
  29  *    @param p ControlPoint to edit.
  30  */
  31
  32 ControlPointDialog::ControlPointDialog (ControlPoint* p)
  33         : ArdourDialog (_("Control point")),
  34           point_ (p)
  35 {
  36         assert (point_);
  37
  38         double const y_fraction = 1.0 - (p->get_y () / p->line().height ());
  39
  40         value_.set_text (p->line().fraction_to_string (y_fraction));
  41
  42         Gtk::HBox* b = Gtk::manage (new Gtk::HBox ());
  43
  44         b->pack_start (*Gtk::manage (new Gtk::Label (_("Value"))));
  45         b->pack_start (value_);
  46
  47         if (p->line ().get_uses_gain_mapping ()) {
  48                 b->pack_start (*Gtk::manage (new Gtk::Label (_("dB"))));
  49         }
  50
  51         get_vbox ()->pack_end (*b);
  52         b->show_all ();
  53
  54         add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
  55         add_button (Gtk::Stock::APPLY, Gtk::RESPONSE_ACCEPT);
  56         set_default_response (Gtk::RESPONSE_ACCEPT);
  57 }
  58
  59 double
  60 ControlPointDialog::get_y_fraction () const
  61 {
  62         return point_->line().string_to_fraction (value_.get_text ());
  63 }