gtk2_ardour/pan_automation_time_axis.cc

   1 /*
   2     Copyright (C) 2003 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 <ardour/curve.h>
  21 #include <ardour/route.h>
  22 #include <ardour/panner.h>
  23
  24 #include <gtkmm2ext/popup.h>
  25 #include <pbd/memento_command.h>
  26
  27 #include "pan_automation_time_axis.h"
  28 #include "automation_line.h"
  29 #include "canvas_impl.h"
  30 #include "route_ui.h"
  31
  32 #include "i18n.h"
  33
  34 using namespace ARDOUR;
  35 using namespace PBD;
  36 using namespace Gtk;
  37
  38 PanAutomationTimeAxisView::PanAutomationTimeAxisView (Session& s, boost::shared_ptr<Route> r, PublicEditor& e,
  39                                                       TimeAxisView& parent, Canvas& canvas, std::string n)
  40
  41         : AxisView (s),
  42           AutomationTimeAxisView (s, r, e, parent, canvas, n, X_("pan"), "")
  43 {
  44         multiline_selector.set_name ("PanAutomationLineSelector");
  45
  46         controls_table.attach (multiline_selector, 1, 5, 1, 2, Gtk::EXPAND, Gtk::EXPAND);
  47 }
  48
  49 PanAutomationTimeAxisView::~PanAutomationTimeAxisView ()
  50 {
  51 }
  52
  53 void
  54 PanAutomationTimeAxisView::add_automation_event (ArdourCanvas::Item* item, GdkEvent* event, nframes_t when, double y)
  55 {
  56         if (lines.empty()) {
  57                 /* no data, possibly caused by no outputs/inputs */
  58                 return;
  59         }
  60
  61         int line_index = 0;
  62
  63         if (lines.size() > 1) {
  64                 line_index = multiline_selector.get_active_row_number();
  65
  66                 if (line_index < 0 || line_index >= (int)lines.size()) {
  67                         Gtkmm2ext::PopUp* msg = new Gtkmm2ext::PopUp (Gtk::WIN_POS_MOUSE, 5000, true);
  68
  69                         msg->set_text (_("You need to select which line to edit"));
  70                         msg->touch ();
  71
  72                         return;
  73                 }
  74         }
  75
  76         double x = 0;
  77
  78         canvas_display->w2i (x, y);
  79
  80         /* compute vertical fractional position */
  81
  82         y = 1.0 - (y / height);
  83
  84         /* map using line */
  85
  86         lines.front()->view_to_model_y (y);
  87
  88         AutomationList& alist (lines[line_index]->the_list());
  89
  90         _session.begin_reversible_command (_("add pan automation event"));
  91         XMLNode &before = alist.get_state();
  92         alist.add (when, y);
  93         XMLNode &after = alist.get_state();
  94         _session.add_command(new MementoCommand<AutomationList>(alist, &before, &after));
  95         _session.commit_reversible_command ();
  96         _session.set_dirty ();
  97 }
  98
  99 void
 100 PanAutomationTimeAxisView::clear_lines ()
 101 {
 102         AutomationTimeAxisView::clear_lines();
 103         multiline_selector.clear();
 104 }
 105
 106 void
 107 PanAutomationTimeAxisView::add_line (AutomationLine& line)
 108 {
 109         char buf[32];
 110         snprintf(buf,32,"Line %zu",lines.size()+1);
 111         multiline_selector.append_text(buf);
 112
 113         if (lines.empty()) {
 114                 multiline_selector.set_active(0);
 115         }
 116
 117         if (lines.size() + 1 > 1 && (height > hSmall)) {
 118                 multiline_selector.show();
 119         } else {
 120                 multiline_selector.hide();
 121
 122         }
 123
 124         AutomationTimeAxisView::add_line(line);
 125 }
 126
 127 void
 128 PanAutomationTimeAxisView::set_height (uint32_t h)
 129 {
 130         AutomationTimeAxisView::set_height(h);
 131
 132         if (h >= hNormal) {
 133                 if (lines.size() > 1) {
 134                         multiline_selector.show();
 135                 }
 136         } else {
 137                 multiline_selector.hide();
 138         }
 139 }
 140
 141 void
 142 PanAutomationTimeAxisView::set_automation_state (AutoState state)
 143 {
 144         if (!ignore_state_request) {
 145                 route->panner().set_automation_state (state);
 146         }
 147 }