Logo Search packages:      
Sourcecode: ardour version File versions  Download package

region_editor.cc

/*
    Copyright (C) 2001 Paul Davis 

    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.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    $Id: region_editor.cc,v 1.38 2005/08/23 01:14:09 taybin Exp $
*/

#include <ardour/audioregion.h>
#include <ardour/utils.h>
#include <gtkmmext/utils.h>
#include <gtkmmext/stop_signal.h>
#include <cmath>

#include "region_editor.h"
#include "regionview.h"
#include "ardour_ui.h"
#include "utils.h"

#include "i18n.h"

using namespace ARDOUR;
using namespace SigC;
using namespace std;

AudioRegionEditor::AudioRegionEditor (Session&s, AudioRegion& r, AudioRegionView& rv)
      : ArdourDialog ("audio region editor"),
        _session (s),
        _region (r),
        _region_view (rv),
        name_label (_("NAME:")),
        lock_button (_("lock")),
        mute_button (_("mute")),
        opaque_button (_("opaque")),
        raise_arrow (GTK_ARROW_UP, GTK_SHADOW_OUT),
        lower_arrow (GTK_ARROW_DOWN, GTK_SHADOW_OUT),
        layer_label (_("Layer")),
        audition_label (_("play")),
        time_table (3, 2),
        start_clock ("AudioRegionEditorClock", true),
        end_clock ("AudioRegionEditorClock", true),
        length_clock ("AudioRegionEditorClock", true, true),
        sync_offset_clock ("AudioRegionEditorClock", true, true),
        envelope_loop_table (1, 3),
        envelope_label (_("ENVELOPE")),
        fade_in_table (4, 3),
        fade_in_length_adjustment (5.0, 0.0, 10000, 0.05, 1),
        fade_in_length_spinner (fade_in_length_adjustment, 10),
        fade_out_table (4, 3),
        fade_out_length_adjustment (5.0, 0.0, 10000, 0.05, 1),
        fade_out_length_spinner (fade_out_length_adjustment, 10)

{
      start_clock.set_session (&_session);
      end_clock.set_session (&_session);
      length_clock.set_session (&_session);

      name_entry.set_name ("AudioRegionEditorEntry");
      name_label.set_name ("AudioRegionEditorLabel");

      name_entry.focus_in_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      name_entry.focus_out_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      
      name_hbox.set_spacing (5);
      name_hbox.pack_start (name_label, false, false);
      name_hbox.pack_start (name_entry, false, false);

      raise_button.add (raise_arrow);
      lower_button.add (lower_arrow);
      layer_frame.set_name ("BaseFrame");
      layer_frame.set_shadow_type (GTK_SHADOW_IN);
      layer_frame.add (layer_value_label);
      layer_label.set_name ("AudioRegionEditorLabel");
      layer_value_label.set_name ("AudioRegionEditorLabel");
      Gtkmmext::set_usize_to_display_given_text (layer_value_label, "99", 5, 2);

      layer_hbox.set_spacing (5);
      layer_hbox.pack_start (layer_label, false, false);
      layer_hbox.pack_start (layer_frame, false, false);
#if 0
      layer_hbox.pack_start (raise_button, false, false);
      layer_hbox.pack_start (lower_button, false, false);
#endif

      audition_button.add (audition_label);

      mute_button.set_name ("AudioRegionEditorToggleButton");
      opaque_button.set_name ("AudioRegionEditorToggleButton");
      lock_button.set_name ("AudioRegionEditorToggleButton");
      envelope_active_button.set_name ("AudioRegionEditorToggleButton");
      envelope_view_button.set_name ("AudioRegionEditorToggleButton");
      fade_in_active_button.set_name ("AudioRegionEditorToggleButton");
      fade_out_active_button.set_name ("AudioRegionEditorToggleButton");
      audition_button.set_name ("AudioRegionEditorToggleButton");

      ARDOUR_UI::instance()->tooltips().set_tip (mute_button, _("mute this region"));
      ARDOUR_UI::instance()->tooltips().set_tip (opaque_button, _("regions underneath this one cannot be heard"));
      ARDOUR_UI::instance()->tooltips().set_tip (lock_button, _("prevent any changes to this region"));
      ARDOUR_UI::instance()->tooltips().set_tip (envelope_active_button, _("use the gain envelope during playback"));
      ARDOUR_UI::instance()->tooltips().set_tip (envelope_view_button, _("show the gain envelope"));
      ARDOUR_UI::instance()->tooltips().set_tip (fade_in_active_button, _("use fade in curve during playback"));
      ARDOUR_UI::instance()->tooltips().set_tip (fade_out_active_button, _("use fade out curve during playback"));
      ARDOUR_UI::instance()->tooltips().set_tip (audition_button, _("audition this region"));

      mute_button.unset_flags (GTK_CAN_FOCUS);
      opaque_button.unset_flags (GTK_CAN_FOCUS);
      lock_button.unset_flags (GTK_CAN_FOCUS);
      envelope_active_button.unset_flags (GTK_CAN_FOCUS);
      envelope_view_button.unset_flags (GTK_CAN_FOCUS);
      fade_in_active_button.unset_flags (GTK_CAN_FOCUS);
      fade_out_active_button.unset_flags (GTK_CAN_FOCUS);
      audition_button.unset_flags (GTK_CAN_FOCUS);
      
      mute_button.set_events (mute_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      opaque_button.set_events (opaque_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      lock_button.set_events (lock_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      envelope_active_button.set_events (envelope_active_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      envelope_view_button.set_events (envelope_view_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      fade_in_active_button.set_events (fade_in_active_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      fade_out_active_button.set_events (fade_out_active_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));
      audition_button.set_events (audition_button.get_events() & ~(GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK));

      top_row_button_hbox.set_border_width (5);
      top_row_button_hbox.set_spacing (5);
      top_row_button_hbox.set_homogeneous (false);
      top_row_button_hbox.pack_start (mute_button, false, false);
      top_row_button_hbox.pack_start (opaque_button, false, false);
      top_row_button_hbox.pack_start (lock_button, false, false);
      top_row_button_hbox.pack_start (layer_hbox, false, false, 5);
      top_row_button_hbox.pack_end (audition_button, false, false);
      
      top_row_hbox.pack_start (name_hbox, true, true);
      top_row_hbox.pack_end (top_row_button_hbox, true, true);

      start_label.set_name ("AudioRegionEditorLabel");
      start_label.set_text (_("START:"));
      end_label.set_name ("AudioRegionEditorLabel");
      end_label.set_text (_("END:"));
      length_label.set_name ("AudioRegionEditorLabel");
      length_label.set_text (_("LENGTH:"));
      
      time_table.set_col_spacings (2);
      time_table.set_row_spacings (5);
      time_table.set_border_width (5);

      start_alignment.set (1.0, 0.5);
      end_alignment.set (1.0, 0.5);
      length_alignment.set (1.0, 0.5);

      start_alignment.add (start_label);
      end_alignment.add (end_label);
      length_alignment.add (length_label);

      time_table.attach (start_alignment, 0, 1, 0, 1);
      time_table.attach (start_clock, 1, 2, 0, 1, 0, 0);

      time_table.attach (end_alignment, 0, 1, 1, 2);
      time_table.attach (end_clock, 1, 2, 1, 2, 0, 0);

      time_table.attach (length_alignment, 0, 1, 2, 3);
      time_table.attach (length_clock, 1, 2, 2, 3, 0, 0);

      envelope_label.set_name ("AudioRegionEditorLabel");

      envelope_active_button_label.set_text (_("active"));
      envelope_active_button.add (envelope_active_button_label);
      envelope_view_button_label.set_text (_("visible"));
      envelope_view_button.add (envelope_view_button_label);

      envelope_loop_table.set_border_width (5);
      envelope_loop_table.set_row_spacings (2);
      envelope_loop_table.attach (envelope_label, 0, 1, 0, 1, 0, 0);
      envelope_loop_table.attach (envelope_active_button, 0, 1, 1, 2, GTK_FILL|GTK_EXPAND, 0);
      envelope_loop_table.attach (envelope_view_button, 0, 1, 2, 3, GTK_FILL|GTK_EXPAND, 0);

      /* fade in */

      fade_in_table.set_border_width (5);
      fade_in_table.set_homogeneous (false);

      fade_in_label.set_name ("AudioRegionEditorLabel");
      fade_in_active_button_label.set_name ("AudioRegionEditorSmallLabel");
      fade_in_length_label.set_name ("AudioRegionEditorSmallLabel");

      fade_in_label.set_text (_("FADE IN"));
      fade_in_active_button_label.set_text (_("active"));
      fade_in_length_label.set_text (_("msecs"));

      fade_in_active_button.add (fade_in_active_button_label);

      fade_in_length_spinner.set_name("GenericSpinner");

      fade_in_length_spinner.set_digits (3);

      fade_in_length_spinner.focus_in_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      fade_in_length_spinner.focus_out_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      fade_in_length_spinner.activate.connect (slot (*this, &AudioRegionEditor::activation));

      Gtkmmext::set_usize_to_display_given_text (fade_in_length_spinner, "500g", 20, -1);

      fade_in_label_align.add (fade_in_label);
      fade_in_label_align.set (0.5);


      fade_in_table.attach (fade_in_label_align,   0, 2, 0, 1, GTK_FILL|GTK_EXPAND, 0, 0, 0);

      fade_in_table.attach (fade_in_length_label,   0, 1, 1, 2, GTK_EXPAND, 0, 0, 0);
      fade_in_table.attach (fade_in_length_spinner, 0, 1, 2, 3, GTK_FILL|GTK_EXPAND, 0, 0, 0);

      fade_in_table.attach (fade_in_active_button,        0, 2, 3, 5, GTK_FILL|GTK_EXPAND, 0);

      /* fade out */

      fade_out_table.set_border_width (5);
      fade_out_table.set_homogeneous (false);

      fade_out_label.set_name ("AudioRegionEditorLabel");
      fade_out_active_button_label.set_name ("AudioRegionEditorSmallLabel");
      fade_out_length_label.set_name ("AudioRegionEditorSmallLabel");

      fade_out_label.set_text (_("FADE OUT"));
      fade_out_active_button_label.set_text (_("active"));
      fade_out_length_label.set_text (_("msecs"));

      fade_out_active_button.add (fade_out_active_button_label);

      fade_out_length_spinner.set_name("GenericSpinner");
      
      fade_out_length_spinner.set_digits (3);

      fade_out_length_spinner.focus_in_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      fade_out_length_spinner.focus_out_event.connect (slot (*this, &AudioRegionEditor::focus_change));
      fade_out_length_spinner.activate.connect (slot (*this, &AudioRegionEditor::activation));

      Gtkmmext::set_usize_to_display_given_text (fade_out_length_spinner, "500g", 20, -1);

      fade_out_label_align.add (fade_out_label);
      fade_out_label_align.set (0.5);

      fade_out_table.attach (fade_out_label_align,   0, 2, 0, 1, GTK_FILL|GTK_EXPAND, 0, 0, 0);

      fade_out_table.attach (fade_out_length_label,   0, 1, 1, 2, GTK_EXPAND, 0, 0, 0);
      fade_out_table.attach (fade_out_length_spinner, 0, 1, 2, 3, GTK_FILL|GTK_EXPAND, 0, 0, 0);

      fade_out_table.attach (fade_out_active_button,        0, 2, 3, 5, GTK_FILL|GTK_EXPAND, 0);

      lower_hbox.pack_start (time_table, true, true);
      lower_hbox.pack_start (sep1, false, false);
      lower_hbox.pack_start (envelope_loop_table, true, true);
      lower_hbox.pack_start (sep2, false, false);
      lower_hbox.pack_start (fade_in_table, true, true);
      lower_hbox.pack_start (fade_out_table, true, true);

      upper_vbox.pack_start (top_row_hbox, true, true);
      upper_vbox.pack_start (sep3, false, false);
      upper_vbox.pack_start (lower_hbox, true, true);

      add (upper_vbox);
      set_name ("AudioRegionEditorWindow");
      add_events (GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK);

      delete_event.connect (bind (slot (just_hide_it), static_cast<Window *> (this)));

      string title = _("ardour: region ");
      title += _region.name();
      set_title (title);

      name_changed ();
      bounds_changed (Change (StartChanged|LengthChanged|PositionChanged));
      envelope_active_changed ();
      mute_changed ();
      opacity_changed ();
      lock_changed ();
      layer_changed ();
      fade_in_changed ();
      fade_out_changed ();

      XMLNode *node  = _region.extra_xml ("GUI");
      XMLProperty *prop = 0;
      bool showing_envelope = false;

      if (node && (prop = node->property ("envelope-visible")) != 0) {
            if (prop->value() == "yes") {
                  showing_envelope = true;
            } 
      } 

      if (showing_envelope) {
            envelope_view_button.set_active (true);
      } else {
            envelope_view_button.set_active (false);
      }

      _region.StateChanged.connect (slot (*this, &AudioRegionEditor::region_changed));
      
      spin_arrow_grab = false;
      
      connect_editor_events ();
}

AudioRegionEditor::~AudioRegionEditor ()
{
}

void
AudioRegionEditor::region_changed (Change what_changed)
{
      if (what_changed & NameChanged) {
            name_changed ();
      }
      if (what_changed & BoundsChanged) {
            bounds_changed (what_changed);
      }

      if (what_changed & Region::OpacityChanged) {
            opacity_changed ();
      }
      if (what_changed & Region::MuteChanged) {
            mute_changed ();
      }
      if (what_changed & Region::LockChanged) {
            lock_changed ();
      }
      if (what_changed & Region::LayerChanged) {
            layer_changed ();
      }

      if (what_changed & AudioRegion::EnvelopeActiveChanged) {
            envelope_active_changed ();
      }
      if (what_changed & AudioRegion::FadeInChanged) {
            fade_in_changed ();
      }
      if (what_changed & AudioRegion::FadeOutChanged) {
            fade_out_changed ();
      }
      if (what_changed & AudioRegion::FadeInActiveChanged) {
            fade_in_active_changed ();
      }
      if (what_changed & AudioRegion::FadeOutActiveChanged) {
            fade_out_active_changed ();
      }
}

void
AudioRegionEditor::fade_in_realized ()
{
      fade_in_changed ();
}

void
AudioRegionEditor::fade_out_realized ()
{
      fade_out_changed ();
}

gint 
AudioRegionEditor::bpressed (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
{
      switch (ev->button) {
      case 1:
      case 2:
      case 3:
            if (ev->type == GDK_BUTTON_PRESS) { /* no double clicks here */
                  if (!spin_arrow_grab) {
                        if ((ev->window == but->gtkobj()->panel)) {
                              spin_arrow_grab = true;
                              (this->*pmf)();
                        } 
                  } 
            } 
            break;
      default:
            break;
      }
      return FALSE;
}

gint 
AudioRegionEditor::breleased (GdkEventButton* ev, Gtk::SpinButton* but, void (AudioRegionEditor::*pmf)())
{
      if (spin_arrow_grab) {
            (this->*pmf)();
            spin_arrow_grab = false;
      }
      return FALSE;
}

void
AudioRegionEditor::start_editing_fade_in ()
{
      _region.freeze ();
}

void
AudioRegionEditor::stop_editing_fade_in ()
{
      _region.thaw (_("fade in edit"));
}

void
AudioRegionEditor::start_editing_fade_out ()
{
      _region.freeze ();
}

void
AudioRegionEditor::stop_editing_fade_out ()
{
      _region.thaw (_("fade out edit"));
}

void
AudioRegionEditor::connect_editor_events ()
{
      name_entry.changed.connect (slot (*this, &AudioRegionEditor::name_entry_changed));

      start_clock.ValueChanged.connect (slot (*this, &AudioRegionEditor::start_clock_changed));
      end_clock.ValueChanged.connect (slot (*this, &AudioRegionEditor::end_clock_changed));
      length_clock.ValueChanged.connect (slot (*this, &AudioRegionEditor::length_clock_changed));

      fade_in_length_spinner.button_press_event.connect (bind (slot (*this, &AudioRegionEditor::bpressed), &fade_in_length_spinner, 
                                                 &AudioRegionEditor::start_editing_fade_in));
      fade_in_length_spinner.button_release_event.connect (bind (slot (this, &AudioRegionEditor::breleased), &fade_in_length_spinner, 
                                                   &AudioRegionEditor::stop_editing_fade_in));

      fade_out_length_spinner.button_press_event.connect (bind (slot (*this, &AudioRegionEditor::bpressed), &fade_out_length_spinner, 
                                                 &AudioRegionEditor::start_editing_fade_out));
      fade_out_length_spinner.button_release_event.connect (bind (slot (this, &AudioRegionEditor::breleased), &fade_out_length_spinner, 
                                                   &AudioRegionEditor::stop_editing_fade_out));

      fade_in_length_adjustment.value_changed.connect (slot (*this, &AudioRegionEditor::fade_in_length_adjustment_changed));
      fade_out_length_adjustment.value_changed.connect (slot (*this, &AudioRegionEditor::fade_out_length_adjustment_changed));

      fade_in_active_button.toggled.connect (slot (*this, &AudioRegionEditor::fade_in_active_toggled));
      fade_out_active_button.toggled.connect (slot (*this, &AudioRegionEditor::fade_out_active_toggled));

      envelope_active_button.button_press_event.connect (slot (*this, &AudioRegionEditor::envelope_active_button_press));
      envelope_active_button.button_release_event.connect (slot (*this, &AudioRegionEditor::envelope_active_button_release));
      audition_button.toggled.connect (slot (*this, &AudioRegionEditor::audition_button_toggled));
      envelope_view_button.toggled.connect (slot (*this, &AudioRegionEditor::envelope_view_button_toggled));
      lock_button.clicked.connect (slot (*this, &AudioRegionEditor::lock_button_clicked));
      mute_button.clicked.connect (slot (*this, &AudioRegionEditor::mute_button_clicked));
      opaque_button.clicked.connect (slot (*this, &AudioRegionEditor::opaque_button_clicked));
      raise_button.clicked.connect (slot (*this, &AudioRegionEditor::raise_button_clicked));
      lower_button.clicked.connect (slot (*this, &AudioRegionEditor::lower_button_clicked));
}

void
AudioRegionEditor::start_clock_changed ()
{
      _region.set_position (start_clock.current_time(), this);
}

void
AudioRegionEditor::end_clock_changed ()
{
      _region.trim_end (end_clock.current_time(), this);

      end_clock.set (_region.position() + _region.length(), true);
}

void
AudioRegionEditor::length_clock_changed ()
{
      jack_nframes_t frames = length_clock.current_time();
      _region.trim_end (_region.position() + frames, this);

      length_clock.set (_region.length());
}

gint
AudioRegionEditor::envelope_active_button_press(GdkEventButton *ev)
{
      return stop_signal (envelope_active_button, "button_press_event");
}

gint
AudioRegionEditor::envelope_active_button_release (GdkEventButton *ev)
{
      _region.set_envelope_active (!_region.envelope_active());
      return stop_signal (envelope_active_button, "button_release_event");
}

void
AudioRegionEditor::envelope_view_button_toggled ()
{
      bool visible = envelope_view_button.get_active ();

      _region_view.set_envelope_visible (visible);
}

void
AudioRegionEditor::audition_button_toggled ()
{
      if (audition_button.get_active()) {
            _session.audition_region (_region);
      } else {
            _session.cancel_audition ();
      }
}

void
AudioRegionEditor::raise_button_clicked ()
{
      _region.raise ();
}

void
AudioRegionEditor::lower_button_clicked ()
{
      _region.lower ();
}

void
AudioRegionEditor::opaque_button_clicked ()
{
      bool ractive = _region.opaque();

      if (opaque_button.get_active() != ractive) {
            _region.set_opaque (!ractive);
      }
}

void
AudioRegionEditor::mute_button_clicked ()
{
      bool ractive = _region.muted();

      if (mute_button.get_active() != ractive) {
            _region.set_muted (!ractive);
      }
}

void
AudioRegionEditor::lock_button_clicked ()
{
      bool ractive = _region.locked();

      if (lock_button.get_active() != ractive) {
            _region.set_locked (!ractive);
      }
}

void
AudioRegionEditor::layer_changed ()
{
      char buf[8];
      snprintf (buf, sizeof(buf), "%d", (int) _region.layer() + 1);
      layer_value_label.set_text (buf);
}

void
AudioRegionEditor::name_changed ()
{
      if (name_entry.get_text() != _region.name()) {
            name_entry.set_text (_region.name());
      }
}

void
AudioRegionEditor::lock_changed ()
{
      bool yn;

      if ((yn = _region.locked()) != lock_button.get_active()) {
            lock_button.set_active (yn);
      }

      start_clock.set_sensitive (!yn);
      end_clock.set_sensitive (!yn);
      length_clock.set_sensitive (!yn);
}

void
AudioRegionEditor::envelope_active_changed ()
{
      bool yn;

      if ((yn = _region.envelope_active()) != envelope_active_button.get_active()) {
            envelope_active_button.set_active (yn);
      }
}

void
AudioRegionEditor::opacity_changed ()
{
      bool yn;
      if ((yn = _region.opaque()) != opaque_button.get_active()) {
            opaque_button.set_active (yn);
      }
}

void
AudioRegionEditor::mute_changed ()
{
      bool yn;
      if ((yn = _region.muted()) != mute_button.get_active()) {
            mute_button.set_active (yn);
      }
}

void
AudioRegionEditor::bounds_changed (Change what_changed)
{
      if (what_changed & Change ((PositionChanged|LengthChanged))) {
            start_clock.set (_region.position(), true);
            end_clock.set (_region.position() + _region.length(), true);
            length_clock.set (_region.length(), true);
      }
}

gint
AudioRegionEditor::focus_change (GdkEventFocus *ev)
{
      if (ev->in) {
            ARDOUR_UI::instance()->allow_focus (true);
      } else {
            ARDOUR_UI::instance()->allow_focus (false);
      }
      return TRUE;
}

void
AudioRegionEditor::activation ()
{
      ARDOUR_UI::instance()->allow_focus (false);
}     

void
AudioRegionEditor::name_entry_changed ()
{
      if (name_entry.get_text() != _region.name()) {
            _region.set_name (name_entry.get_text());
      }
}

void
AudioRegionEditor::fade_in_changed ()
{
      float msecs = fade_in_length_adjustment.get_value();
      jack_nframes_t sr = _session.frame_rate();
      jack_nframes_t adj_frames = (jack_nframes_t) floor (msecs * (sr/1000.0f));
      jack_nframes_t frames;
      bool x;

      if (adj_frames != (frames = (jack_nframes_t) _region.fade_in().back()->when)) {
            fade_in_length_adjustment.set_value ((frames * 1000.0f) / sr);
      }

      if ((x = _region.fade_in_active()) != fade_in_active_button.get_active()) {
            fade_in_active_button.set_active (x);
      }
}

void
AudioRegionEditor::fade_out_changed ()
{
      float msecs = fade_out_length_adjustment.get_value();
      jack_nframes_t sr = _session.frame_rate();
      jack_nframes_t adj_frames = (jack_nframes_t) floor (msecs * (sr/1000.0f));
      jack_nframes_t frames;
      bool x;
      if (adj_frames != (frames = (jack_nframes_t) _region.fade_out().back()->when)) {
            fade_out_length_adjustment.set_value ((frames * 1000.0f) / sr);
      }

      if ((x = _region.fade_out_active()) != fade_out_active_button.get_active()) {
            fade_out_active_button.set_active (x);
      }
}

void
AudioRegionEditor::fade_in_length_adjustment_changed ()
{
      jack_nframes_t fade_length = (jack_nframes_t) floor (fade_in_length_adjustment.get_value() * _session.frame_rate() * 0.001); 
      fade_length = max (fade_length, (jack_nframes_t) 64);
      fade_length = min (fade_length, _region.length());
      
      _region.set_fade_in_length (fade_length);
      /* region is frozen, no worries */
      fade_in_changed();
}

void
AudioRegionEditor::fade_out_length_adjustment_changed ()
{
      jack_nframes_t fade_length = (jack_nframes_t) floor (fade_out_length_adjustment.get_value() * _session.frame_rate() * 0.001); 
      fade_length = max (fade_length, (jack_nframes_t) 64);
      fade_length = min (fade_length, _region.length());
      
      _region.set_fade_out_length (fade_length);      
      /* region is frozen, no worries */
      fade_out_changed();
}

void
AudioRegionEditor::fade_in_active_toggled ()
{
      _region.set_fade_in_active (fade_in_active_button.get_active());
}

void
AudioRegionEditor::fade_out_active_toggled ()
{
      _region.set_fade_out_active (fade_out_active_button.get_active());
}

void
AudioRegionEditor::fade_out_active_changed ()
{
      bool x;

      if ((x = _region.fade_out_active()) != fade_out_active_button.get_active()) {
            fade_out_active_button.set_active (x);
      }
}

void
AudioRegionEditor::fade_in_active_changed ()
{
      bool x;

      if ((x = _region.fade_in_active()) != fade_in_active_button.get_active()) {
            fade_in_active_button.set_active (x);
      }
}

Generated by  Doxygen 1.6.0   Back to index