The old code could not snap to the grid, because it had a lot of confusion about pixels vs. time, and between line-origin-relative time and absolute time
1513 lines
39 KiB
C++
1513 lines
39 KiB
C++
/*
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* Copyright (C) 2005-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
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* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
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* Copyright (C) 2006 Hans Fugal <hans@fugal.net>
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* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2007 Doug McLain <doug@nostar.net>
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* Copyright (C) 2013-2017 Robin Gareus <robin@gareus.org>
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* Copyright (C) 2014-2016 Nick Mainsbridge <mainsbridge@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <cmath>
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#ifdef COMPILER_MSVC
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#include <float.h>
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// 'std::isnan()' is not available in MSVC.
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#define isnan_local(val) (bool)_isnan((double)val)
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#else
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#define isnan_local std::isnan
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#endif
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#include <climits>
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#include <vector>
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#include "boost/shared_ptr.hpp"
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#include "pbd/floating.h"
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#include "pbd/memento_command.h"
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#include "pbd/stl_delete.h"
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#include "ardour/automation_list.h"
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#include "ardour/dB.h"
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#include "ardour/debug.h"
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#include "ardour/parameter_types.h"
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#include "ardour/tempo.h"
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#include "temporal/range.h"
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#include "evoral/Curve.h"
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#include "canvas/debug.h"
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#include "automation_line.h"
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#include "control_point.h"
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#include "gui_thread.h"
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#include "rgb_macros.h"
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#include "public_editor.h"
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#include "selection.h"
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#include "time_axis_view.h"
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#include "point_selection.h"
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#include "automation_time_axis.h"
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#include "ui_config.h"
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#include "ardour/event_type_map.h"
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#include "ardour/session.h"
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#include "ardour/value_as_string.h"
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#include "pbd/i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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using namespace Editing;
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using namespace Temporal;
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#define SAMPLES_TO_TIME(x) (get_origin().distance (x))
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/** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session samples.
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* This will not be deleted by AutomationLine.
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*/
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AutomationLine::AutomationLine (const string& name,
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TimeAxisView& tv,
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ArdourCanvas::Item& parent,
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boost::shared_ptr<AutomationList> al,
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const ParameterDescriptor& desc)
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: trackview (tv)
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, _name (name)
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, _height (0)
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, _view_index_offset (0)
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, alist (al)
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, _visible (Line)
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, terminal_points_can_slide (true)
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, update_pending (false)
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, have_reset_timeout (false)
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, no_draw (false)
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, _is_boolean (false)
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, _parent_group (parent)
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, _offset (0)
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, _maximum_time (timepos_t::max (al->time_domain()))
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, _fill (false)
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, _desc (desc)
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{
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group = new ArdourCanvas::Container (&parent, ArdourCanvas::Duple(0, 1.5));
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CANVAS_DEBUG_NAME (group, "region gain envelope group");
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line = new ArdourCanvas::PolyLine (group);
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CANVAS_DEBUG_NAME (line, "region gain envelope line");
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line->set_data ("line", this);
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line->set_outline_width (2.0);
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line->set_covers_threshold (4.0);
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line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
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trackview.session()->register_with_memento_command_factory(alist->id(), this);
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interpolation_changed (alist->interpolation ());
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connect_to_list ();
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}
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AutomationLine::~AutomationLine ()
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{
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delete group; // deletes child items
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for (std::vector<ControlPoint *>::iterator i = control_points.begin(); i != control_points.end(); i++) {
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(*i)->unset_item ();
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delete *i;
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}
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control_points.clear ();
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}
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timepos_t
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AutomationLine::get_origin() const
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{
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/* this is the default for all non-derived AutomationLine classes: the
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origin is zero, in whatever time domain the list we represent uses.
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*/
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return timepos_t (the_list()->time_domain());
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}
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bool
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AutomationLine::event_handler (GdkEvent* event)
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{
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return PublicEditor::instance().canvas_line_event (event, line, this);
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}
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bool
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AutomationLine::is_stepped() const
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{
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return (_desc.toggled ||
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(alist && alist->interpolation() == AutomationList::Discrete));
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}
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void
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AutomationLine::update_visibility ()
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{
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if (_visible & Line) {
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/* Only show the line when there are some points, otherwise we may show an out-of-date line
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when automation points have been removed (the line will still follow the shape of the
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old points).
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*/
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if (line_points.size() >= 2) {
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line->show();
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} else {
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line->hide ();
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}
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if (_visible & ControlPoints) {
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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(*i)->show ();
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}
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} else if (_visible & SelectedControlPoints) {
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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if ((*i)->selected()) {
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(*i)->show ();
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} else {
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(*i)->hide ();
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}
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}
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} else {
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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(*i)->hide ();
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}
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}
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} else {
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line->hide ();
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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if (_visible & ControlPoints) {
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(*i)->show ();
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} else {
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(*i)->hide ();
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}
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}
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}
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}
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bool
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AutomationLine::get_uses_gain_mapping () const
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{
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switch (_desc.type) {
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case GainAutomation:
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case BusSendLevel:
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case EnvelopeAutomation:
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case TrimAutomation:
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case InsertReturnLevel:
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return true;
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default:
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return false;
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}
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}
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void
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AutomationLine::hide ()
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{
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/* leave control points setting unchanged, we are just hiding the
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overall line
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*/
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set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
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}
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double
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AutomationLine::control_point_box_size ()
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{
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float uiscale = UIConfiguration::instance().get_ui_scale();
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uiscale = std::max<float> (1.f, powf (uiscale, 1.71));
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if (_height > TimeAxisView::preset_height (HeightLarger)) {
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return rint (8.0 * uiscale);
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} else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
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return rint (6.0 * uiscale);
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}
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return rint (4.0 * uiscale);
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}
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void
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AutomationLine::set_height (guint32 h)
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{
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if (h != _height) {
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_height = h;
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double bsz = control_point_box_size();
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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(*i)->set_size (bsz);
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}
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if (_fill) {
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line->set_fill_y1 (_height);
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} else {
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line->set_fill_y1 (0);
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}
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reset ();
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}
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}
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void
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AutomationLine::set_line_color (uint32_t color)
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{
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_line_color = color;
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line->set_outline_color (color);
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Gtkmm2ext::SVAModifier mod = UIConfiguration::instance().modifier ("automation line fill");
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line->set_fill_color ((color & 0xffffff00) + mod.a()*255);
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}
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ControlPoint*
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AutomationLine::nth (uint32_t n)
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{
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if (n < control_points.size()) {
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return control_points[n];
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} else {
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return 0;
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}
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}
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ControlPoint const *
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AutomationLine::nth (uint32_t n) const
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{
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if (n < control_points.size()) {
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return control_points[n];
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} else {
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return 0;
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}
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}
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void
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AutomationLine::modify_point_y (ControlPoint& cp, double y)
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{
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/* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
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and needs to be converted to a canvas unit distance.
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*/
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y = max (0.0, y);
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y = min (1.0, y);
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y = _height - (y * _height);
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trackview.editor().begin_reversible_command (_("automation event move"));
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trackview.editor().session()->add_command (
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new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
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cp.move_to (cp.get_x(), y, ControlPoint::Full);
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alist->freeze ();
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sync_model_with_view_point (cp);
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alist->thaw ();
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reset_line_coords (cp);
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if (line_points.size() > 1) {
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line->set_steps (line_points, is_stepped());
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}
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update_pending = false;
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trackview.editor().session()->add_command (
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new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
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trackview.editor().commit_reversible_command ();
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trackview.editor().session()->set_dirty ();
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}
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void
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AutomationLine::reset_line_coords (ControlPoint& cp)
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{
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if (cp.view_index() < line_points.size()) {
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line_points[cp.view_index() + _view_index_offset].x = cp.get_x ();
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line_points[cp.view_index() + _view_index_offset].y = cp.get_y ();
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}
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}
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bool
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AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
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{
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update_pending = true;
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bool moved = false;
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for (auto const & vp : cp) {
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moved = sync_model_with_view_point (*vp) || moved;
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}
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return moved;
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}
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string
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AutomationLine::get_verbose_cursor_string (double fraction) const
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{
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return fraction_to_string (fraction);
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}
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string
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AutomationLine::get_verbose_cursor_relative_string (double fraction, double delta) const
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{
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std::string s = fraction_to_string (fraction);
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std::string d = delta_to_string (delta);
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return s + " (" + d + ")";
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}
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/**
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* @param fraction y fraction
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* @return string representation of this value, using dB if appropriate.
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*/
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string
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AutomationLine::fraction_to_string (double fraction) const
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{
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view_to_model_coord_y (fraction);
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return ARDOUR::value_as_string (_desc, fraction);
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}
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string
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AutomationLine::delta_to_string (double delta) const
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{
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if (!get_uses_gain_mapping () && _desc.logarithmic) {
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return "x " + ARDOUR::value_as_string (_desc, delta);
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} else {
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return u8"\u0394 " + ARDOUR::value_as_string (_desc, delta);
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}
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}
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/**
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* @param s Value string in the form as returned by fraction_to_string.
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* @return Corresponding y fraction.
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*/
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double
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AutomationLine::string_to_fraction (string const & s) const
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{
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double v;
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sscanf (s.c_str(), "%lf", &v);
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switch (_desc.type) {
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case GainAutomation:
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case BusSendLevel:
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case EnvelopeAutomation:
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case TrimAutomation:
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case InsertReturnLevel:
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if (s == "-inf") { /* translation */
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v = 0;
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} else {
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v = dB_to_coefficient (v);
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}
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break;
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default:
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break;
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}
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return model_to_view_coord_y (v);
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}
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/** Start dragging a single point, possibly adding others if the supplied point is selected and there
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* are other selected points.
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*
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* @param cp Point to drag.
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* @param x Initial x position (units).
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* @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
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*/
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void
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AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
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{
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trackview.editor().session()->add_command (
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new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
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_drag_points.clear ();
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_drag_points.push_back (cp);
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if (cp->selected ()) {
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for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
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if (*i != cp && (*i)->selected()) {
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_drag_points.push_back (*i);
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}
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}
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}
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start_drag_common (x, fraction);
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}
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/** Start dragging a line vertically (with no change in x)
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* @param i1 Control point index of the `left' point on the line.
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* @param i2 Control point index of the `right' point on the line.
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* @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
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*/
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void
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AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
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{
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trackview.editor().session()->add_command (
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new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
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_drag_points.clear ();
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for (uint32_t i = i1; i <= i2; i++) {
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_drag_points.push_back (nth (i));
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}
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start_drag_common (0, fraction);
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}
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/** Start dragging multiple points (with no change in x)
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* @param cp Points to drag.
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* @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
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*/
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void
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AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
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{
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trackview.editor().session()->add_command (
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new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
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_drag_points = cp;
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start_drag_common (0, fraction);
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}
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struct ControlPointSorter
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{
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bool operator() (ControlPoint const * a, ControlPoint const * b) const {
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if (floateq (a->get_x(), b->get_x(), 1)) {
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return a->view_index() < b->view_index();
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}
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return a->get_x() < b->get_x();
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}
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};
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AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
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: line (al), before_x (timepos_t (line.the_list()->time_domain())), after_x (timepos_t::max (line.the_list()->time_domain()))
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{
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}
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void
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AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
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{
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uint32_t sz = size();
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if (sz > 0 && sz < line.npoints()) {
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const TempoMap::SharedPtr map (TempoMap::use());
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/* determine the limits on x-axis motion for this
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contiguous range of control points
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*/
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if (front()->view_index() > 0) {
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before_x = (*line.nth (front()->view_index() - 1)->model())->when;
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before_x += timepos_t (64);
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}
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/* if our last point has a point after it in the line,
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we have an "after" bound
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*/
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if (back()->view_index() < (line.npoints() - 1)) {
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after_x = (*line.nth (back()->view_index() + 1)->model())->when;
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after_x.shift_earlier (timepos_t (64));
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}
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}
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}
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Temporal::timecnt_t
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AutomationLine::ContiguousControlPoints::clamp_dt (timecnt_t const & dt, timepos_t const & line_limit)
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{
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if (empty()) {
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return dt;
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}
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/* get the maximum distance we can move any of these points along the x-axis
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*/
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ControlPoint* reference_point;
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if (dt.magnitude() > 0) {
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/* check the last point, since we're moving later in time */
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reference_point = back();
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} else {
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|
/* check the first point, since we're moving earlier in time */
|
|
reference_point = front();
|
|
}
|
|
|
|
/* possible position the "reference" point would move to, given dx */
|
|
Temporal::timepos_t possible_pos = (*reference_point->model())->when + dt; // new possible position if we just add the motion
|
|
|
|
/* Now clamp that position so that:
|
|
*
|
|
* - it is not before the origin (zero)
|
|
* - it is not beyond the line's own limit (e.g. for region automation)
|
|
* - it is not before the preceding point
|
|
* - it is not after the folloing point
|
|
*/
|
|
|
|
possible_pos = max (possible_pos, Temporal::timepos_t (possible_pos.time_domain()));
|
|
possible_pos = min (possible_pos, line_limit);
|
|
|
|
possible_pos = max (possible_pos, before_x); // can't move later than following point
|
|
possible_pos = min (possible_pos, after_x); // can't move earlier than preceding point
|
|
|
|
return (*reference_point->model())->when.distance (possible_pos);
|
|
}
|
|
|
|
void
|
|
AutomationLine::ContiguousControlPoints::move (timecnt_t const & dt, double dvalue)
|
|
{
|
|
for (auto & cp : *this) {
|
|
// compute y-axis delta
|
|
double view_y = 1.0 - cp->get_y() / line.height();
|
|
line.view_to_model_coord_y (view_y);
|
|
line.apply_delta (view_y, dvalue);
|
|
view_y = line.model_to_view_coord_y (view_y);
|
|
view_y = (1.0 - view_y) * line.height();
|
|
|
|
cp->move_to (line.dt_to_dx ((*cp->model())->when, dt), view_y, ControlPoint::Full);
|
|
line.reset_line_coords (*cp);
|
|
}
|
|
}
|
|
|
|
/** Common parts of starting a drag.
|
|
* @param x Starting x position in units, or 0 if x is being ignored.
|
|
* @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
|
|
*/
|
|
void
|
|
AutomationLine::start_drag_common (double x, float fraction)
|
|
{
|
|
_last_drag_fraction = fraction;
|
|
_drag_had_movement = false;
|
|
did_push = false;
|
|
|
|
/* they are probably ordered already, but we have to make sure */
|
|
|
|
_drag_points.sort (ControlPointSorter());
|
|
}
|
|
|
|
/** Takes a relative-to-origin position, moves it by dt, and returns a
|
|
* relative-to-origin pixel count.
|
|
*/
|
|
double
|
|
AutomationLine::dt_to_dx (timepos_t const & pos, timecnt_t const & dt)
|
|
{
|
|
/* convert a shift of pos by dt into an absolute timepos */
|
|
timepos_t const new_pos ((pos + dt + get_origin()).shift_earlier (offset()));
|
|
/* convert to pixels */
|
|
double px = trackview.editor().time_to_pixel_unrounded (new_pos);
|
|
/* convert back to pixels-relative-to-origin */
|
|
px -= trackview.editor().time_to_pixel_unrounded (get_origin());
|
|
return px;
|
|
}
|
|
|
|
/** Should be called to indicate motion during a drag.
|
|
* @param x New x position of the drag in canvas units relative to origin, or undefined if ignore_x == true.
|
|
* @param fraction New y fraction.
|
|
* @return x position and y fraction that were actually used (once clamped).
|
|
*/
|
|
pair<float, float>
|
|
AutomationLine::drag_motion (timecnt_t const & pdt, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
|
|
{
|
|
if (_drag_points.empty()) {
|
|
return pair<double,float> (fraction, _desc.is_linear () ? 0 : 1);
|
|
}
|
|
|
|
timecnt_t dt (pdt);
|
|
|
|
if (ignore_x) {
|
|
dt = timecnt_t (pdt.time_domain());
|
|
}
|
|
|
|
double dy = fraction - _last_drag_fraction;
|
|
|
|
if (!_drag_had_movement) {
|
|
|
|
/* "first move" ... do some stuff that we don't want to do if
|
|
no motion ever took place, but need to do before we handle
|
|
motion.
|
|
*/
|
|
|
|
/* partition the points we are dragging into (potentially several)
|
|
* set(s) of contiguous points. this will not happen with a normal
|
|
* drag, but if the user does a discontiguous selection, it can.
|
|
*/
|
|
|
|
uint32_t expected_view_index = 0;
|
|
CCP contig;
|
|
|
|
for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
|
|
if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
|
|
contig.reset (new ContiguousControlPoints (*this));
|
|
contiguous_points.push_back (contig);
|
|
}
|
|
contig->push_back (*i);
|
|
expected_view_index = (*i)->view_index() + 1;
|
|
}
|
|
|
|
if (contiguous_points.back()->empty()) {
|
|
contiguous_points.pop_back ();
|
|
}
|
|
|
|
for (auto const & ccp : contiguous_points) {
|
|
ccp->compute_x_bounds (trackview.editor());
|
|
}
|
|
_drag_had_movement = true;
|
|
}
|
|
|
|
/* OK, now on to the stuff related to *this* motion event. First, for
|
|
* each contiguous range, figure out the maximum x-axis motion we are
|
|
* allowed (because of neighbouring points that are not moving.
|
|
*
|
|
* if we are moving forwards with push, we don't need to do this,
|
|
* since all later points will move too.
|
|
*/
|
|
|
|
if (dt.is_negative() || (dt.is_positive() && !with_push)) {
|
|
const timepos_t line_limit = get_origin() + maximum_time() + _offset;
|
|
for (auto const & ccp : contiguous_points){
|
|
dt = ccp->clamp_dt (dt, line_limit);
|
|
}
|
|
}
|
|
|
|
/* compute deflection */
|
|
double delta_value;
|
|
{
|
|
double value0 = _last_drag_fraction;
|
|
double value1 = _last_drag_fraction + dy;
|
|
view_to_model_coord_y (value0);
|
|
view_to_model_coord_y (value1);
|
|
delta_value = compute_delta (value0, value1);
|
|
}
|
|
|
|
/* special case -inf */
|
|
if (delta_value == 0 && dy > 0 && !_desc.is_linear ()) {
|
|
assert (_desc.lower == 0);
|
|
delta_value = 1.0;
|
|
}
|
|
|
|
/* clamp y */
|
|
for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
|
|
double vy = 1.0 - (*i)->get_y() / _height;
|
|
view_to_model_coord_y (vy);
|
|
const double orig = vy;
|
|
apply_delta (vy, delta_value);
|
|
if (vy < _desc.lower) {
|
|
delta_value = compute_delta (orig, _desc.lower);
|
|
}
|
|
if (vy > _desc.upper) {
|
|
delta_value = compute_delta (orig, _desc.upper);
|
|
}
|
|
}
|
|
|
|
if (!dt.is_zero() || dy) {
|
|
/* and now move each section */
|
|
|
|
|
|
for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
|
|
(*ccp)->move (dt, delta_value);
|
|
}
|
|
|
|
if (with_push) {
|
|
final_index = contiguous_points.back()->back()->view_index () + 1;
|
|
ControlPoint* p;
|
|
uint32_t i = final_index;
|
|
|
|
while ((p = nth (i)) != 0 && p->can_slide()) {
|
|
|
|
p->move_to (dt_to_dx ((*p->model())->when, dt), p->get_y(), ControlPoint::Full);
|
|
reset_line_coords (*p);
|
|
++i;
|
|
}
|
|
}
|
|
|
|
/* update actual line coordinates (will queue a redraw) */
|
|
|
|
if (line_points.size() > 1) {
|
|
line->set_steps (line_points, is_stepped());
|
|
}
|
|
}
|
|
|
|
/* calculate effective delta */
|
|
ControlPoint* cp = _drag_points.front();
|
|
double vy = 1.0 - cp->get_y() / (double)_height;
|
|
view_to_model_coord_y (vy);
|
|
float val = (*(cp->model ()))->value;
|
|
float effective_delta = _desc.compute_delta (val, vy);
|
|
/* special case recovery from -inf */
|
|
if (val == 0 && effective_delta == 0 && vy > 0) {
|
|
assert (!_desc.is_linear ());
|
|
effective_delta = HUGE_VAL; // +Infinity
|
|
}
|
|
|
|
double const result_frac = _last_drag_fraction + dy;
|
|
_last_drag_fraction = result_frac;
|
|
did_push = with_push;
|
|
|
|
return pair<float, float> (result_frac, effective_delta);
|
|
}
|
|
|
|
/** Should be called to indicate the end of a drag */
|
|
void
|
|
AutomationLine::end_drag (bool with_push, uint32_t final_index)
|
|
{
|
|
if (!_drag_had_movement) {
|
|
return;
|
|
}
|
|
|
|
alist->freeze ();
|
|
bool moved = sync_model_with_view_points (_drag_points);
|
|
|
|
if (with_push) {
|
|
ControlPoint* p;
|
|
uint32_t i = final_index;
|
|
while ((p = nth (i)) != 0 && p->can_slide()) {
|
|
moved = sync_model_with_view_point (*p) || moved;
|
|
++i;
|
|
}
|
|
}
|
|
|
|
alist->thaw ();
|
|
|
|
update_pending = false;
|
|
|
|
if (moved) {
|
|
/* A point has moved as a result of sync (clamped to integer or boolean
|
|
value), update line accordingly. */
|
|
line->set_steps (line_points, is_stepped());
|
|
}
|
|
|
|
trackview.editor().session()->add_command (
|
|
new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
|
|
|
|
trackview.editor().session()->set_dirty ();
|
|
did_push = false;
|
|
|
|
contiguous_points.clear ();
|
|
}
|
|
|
|
/**
|
|
*
|
|
* get model coordinates synced with (possibly changed) view coordinates.
|
|
*
|
|
* For example, we call this in ::end_drag(), when we have probably moved a
|
|
* point in the view, and now want to "push" that change back into the
|
|
* corresponding model point.
|
|
*/
|
|
bool
|
|
AutomationLine::sync_model_with_view_point (ControlPoint& cp)
|
|
{
|
|
/* find out where the visual control point is.
|
|
* ControlPoint uses canvas-units. The origin
|
|
* is the RegionView's top-left corner.
|
|
*/
|
|
double view_x = cp.get_x();
|
|
|
|
/* model time is relative to the Region (regardless of region->start offset) */
|
|
timepos_t model_time = (*cp.model())->when;
|
|
|
|
const timepos_t origin (get_origin());
|
|
|
|
/* convert to absolute time on timeline */
|
|
const timepos_t absolute_time = model_time + origin;
|
|
|
|
/* now convert to pixels relative to start of region, which matches view_x */
|
|
const double model_x = trackview.editor().time_to_pixel_unrounded (absolute_time) - trackview.editor().time_to_pixel_unrounded (origin);
|
|
|
|
if (view_x != model_x) {
|
|
|
|
/* convert the current position in the view (units:
|
|
* region-relative pixels) into samples, then use that to
|
|
* create a timecnt_t that measures the distance from the
|
|
* origin for this line.
|
|
*
|
|
* Note that the offset and origin is irrelevant here,
|
|
* pixel_to_sample() islinear only depending on zoom level.
|
|
*/
|
|
|
|
const timepos_t view_samples (trackview.editor().pixel_to_sample (view_x));
|
|
|
|
/* measure distance from RegionView origin (this preserves time domain) */
|
|
|
|
if (model_time.time_domain() == Temporal::AudioTime) {
|
|
model_time = timepos_t (timecnt_t (view_samples, origin).samples());
|
|
} else {
|
|
model_time = timepos_t (timecnt_t (view_samples, origin).beats());
|
|
}
|
|
|
|
/* convert RegionView to Region position (account for region->start() _offset) */
|
|
model_time += _offset;
|
|
}
|
|
|
|
update_pending = true;
|
|
|
|
double view_y = 1.0 - cp.get_y() / (double)_height;
|
|
view_to_model_coord_y (view_y);
|
|
|
|
alist->modify (cp.model(), model_time, view_y);
|
|
|
|
/* convert back from model to view y for clamping position (for integer/boolean/etc) */
|
|
view_y = model_to_view_coord_y (view_y);
|
|
const double point_y = _height - (view_y * _height);
|
|
if (point_y != cp.get_y()) {
|
|
cp.move_to (cp.get_x(), point_y, ControlPoint::Full);
|
|
reset_line_coords (cp);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
|
|
{
|
|
ControlPoint *bcp = 0;
|
|
ControlPoint *acp = 0;
|
|
double unit_xval;
|
|
|
|
unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
|
|
|
|
for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
|
|
|
|
if ((*i)->get_x() <= unit_xval) {
|
|
|
|
if (!bcp || (*i)->get_x() > bcp->get_x()) {
|
|
bcp = *i;
|
|
before = bcp->view_index();
|
|
}
|
|
|
|
} else if ((*i)->get_x() > unit_xval) {
|
|
acp = *i;
|
|
after = acp->view_index();
|
|
break;
|
|
}
|
|
}
|
|
|
|
return bcp && acp;
|
|
}
|
|
|
|
bool
|
|
AutomationLine::is_last_point (ControlPoint& cp)
|
|
{
|
|
// If the list is not empty, and the point is the last point in the list
|
|
|
|
if (alist->empty()) {
|
|
return false;
|
|
}
|
|
|
|
AutomationList::const_iterator i = alist->end();
|
|
--i;
|
|
|
|
if (cp.model() == i) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
AutomationLine::is_first_point (ControlPoint& cp)
|
|
{
|
|
// If the list is not empty, and the point is the first point in the list
|
|
|
|
if (!alist->empty() && cp.model() == alist->begin()) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
// This is copied into AudioRegionGainLine
|
|
void
|
|
AutomationLine::remove_point (ControlPoint& cp)
|
|
{
|
|
trackview.editor().begin_reversible_command (_("remove control point"));
|
|
XMLNode &before = alist->get_state();
|
|
|
|
trackview.editor ().get_selection ().clear_points ();
|
|
alist->erase (cp.model());
|
|
|
|
trackview.editor().session()->add_command(
|
|
new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
|
|
|
|
trackview.editor().commit_reversible_command ();
|
|
trackview.editor().session()->set_dirty ();
|
|
}
|
|
|
|
/** Get selectable points within an area.
|
|
* @param start Start position in session samples.
|
|
* @param end End position in session samples.
|
|
* @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
|
|
* @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
|
|
* @param result Filled in with selectable things; in this case, ControlPoints.
|
|
*/
|
|
void
|
|
AutomationLine::get_selectables (timepos_t const & start, timepos_t const & end, double botfrac, double topfrac, list<Selectable*>& results)
|
|
{
|
|
/* convert fractions to display coordinates with 0 at the top of the track */
|
|
double const bot_track = (1 - topfrac) * trackview.current_height ();
|
|
double const top_track = (1 - botfrac) * trackview.current_height ();
|
|
|
|
for (auto const & cp : control_points) {
|
|
|
|
const timepos_t w = session_position ((*cp->model())->when);
|
|
|
|
|
|
if (w >= start && w <= end && cp->get_y() >= bot_track && cp->get_y() <= top_track) {
|
|
results.push_back (cp);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
|
|
{
|
|
// hmmm ....
|
|
}
|
|
|
|
void
|
|
AutomationLine::set_selected_points (PointSelection const & points)
|
|
{
|
|
for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
|
|
(*i)->set_selected (false);
|
|
}
|
|
|
|
for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
|
|
(*i)->set_selected (true);
|
|
}
|
|
|
|
if (points.empty()) {
|
|
remove_visibility (SelectedControlPoints);
|
|
} else {
|
|
add_visibility (SelectedControlPoints);
|
|
}
|
|
|
|
set_colors ();
|
|
}
|
|
|
|
void
|
|
AutomationLine::set_colors ()
|
|
{
|
|
set_line_color (UIConfiguration::instance().color ("automation line"));
|
|
for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
|
|
(*i)->set_color ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::list_changed ()
|
|
{
|
|
DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
|
|
|
|
if (!update_pending) {
|
|
update_pending = true;
|
|
Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::tempo_map_changed ()
|
|
{
|
|
if (alist->time_domain() != Temporal::BeatTime) {
|
|
return;
|
|
}
|
|
|
|
reset ();
|
|
}
|
|
|
|
void
|
|
AutomationLine::reset_callback (const Evoral::ControlList& events)
|
|
{
|
|
uint32_t vp = 0;
|
|
uint32_t pi = 0;
|
|
uint32_t np;
|
|
|
|
if (events.empty()) {
|
|
for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
|
|
delete *i;
|
|
}
|
|
control_points.clear ();
|
|
line->hide();
|
|
line_points.clear ();
|
|
return;
|
|
}
|
|
|
|
/* hide all existing points, and the line */
|
|
|
|
for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
|
|
(*i)->hide();
|
|
}
|
|
|
|
line->hide ();
|
|
np = events.size();
|
|
|
|
Evoral::ControlList& e (const_cast<Evoral::ControlList&> (events));
|
|
AutomationList::iterator preceding (e.end());
|
|
AutomationList::iterator following (e.end());
|
|
|
|
for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
|
|
|
|
/* drop points outside our range */
|
|
|
|
if (((*ai)->when < _offset)) {
|
|
preceding = ai;
|
|
continue;
|
|
}
|
|
|
|
if ((*ai)->when >= _offset + _maximum_time) {
|
|
following = ai;
|
|
break;
|
|
}
|
|
|
|
double ty = model_to_view_coord_y ((*ai)->value);
|
|
|
|
if (isnan_local (ty)) {
|
|
warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
|
|
_name) << endmsg;
|
|
continue;
|
|
}
|
|
|
|
/* convert from canonical view height (0..1.0) to actual
|
|
* height coordinates (using X11's top-left rooted system)
|
|
*/
|
|
|
|
ty = _height - (ty * _height);
|
|
|
|
/* tx is currently the distance of this point from
|
|
* _offset, which may be either:
|
|
*
|
|
* a) zero, for an automation line not connected to a
|
|
* region
|
|
*
|
|
* b) some non-zero value, corresponding to the start
|
|
* of the region within its source(s). Remember that
|
|
* this start is an offset within the source, not a
|
|
* position on the timeline.
|
|
*
|
|
* We need to convert tx to a global position, and to
|
|
* do that we need to measure the distance from the
|
|
* result of get_origin(), which tells ut the timeline
|
|
* position of _offset
|
|
*/
|
|
|
|
timecnt_t tx = model_to_view_coord_x ((*ai)->when);
|
|
|
|
/* convert x-coordinate to a canvas unit coordinate (this takes
|
|
* zoom and scroll into account).
|
|
*/
|
|
|
|
double px = trackview.editor().duration_to_pixels_unrounded (tx);
|
|
add_visible_control_point (vp, pi, px, ty, ai, np);
|
|
vp++;
|
|
}
|
|
|
|
/* discard extra CP's to avoid confusing ourselves */
|
|
|
|
while (control_points.size() > vp) {
|
|
ControlPoint* cp = control_points.back();
|
|
control_points.pop_back ();
|
|
delete cp;
|
|
}
|
|
|
|
if (!terminal_points_can_slide && !control_points.empty()) {
|
|
control_points.back()->set_can_slide(false);
|
|
}
|
|
|
|
if (vp) {
|
|
|
|
/* reset the line coordinates given to the CanvasLine */
|
|
|
|
/* 2 extra in case we need hidden points for line start and end */
|
|
|
|
line_points.resize (vp + 2, ArdourCanvas::Duple (0, 0));
|
|
|
|
ArdourCanvas::Points::size_type n = 0;
|
|
|
|
/* potentially insert front hidden (line) point to make the line draw from
|
|
* zero to the first actual point
|
|
*/
|
|
|
|
_view_index_offset = 0;
|
|
|
|
if (control_points[0]->get_x() != 0 && preceding != e.end()) {
|
|
double ty = model_to_view_coord_y (e.unlocked_eval (_offset));
|
|
|
|
if (isnan_local (ty)) {
|
|
warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""), _name) << endmsg;
|
|
|
|
|
|
} else {
|
|
line_points[n].y = _height - (ty * _height);
|
|
line_points[n].x = 0;
|
|
_view_index_offset = 1;
|
|
++n;
|
|
}
|
|
}
|
|
|
|
for (auto const & cp : control_points) {
|
|
line_points[n].x = cp->get_x();
|
|
line_points[n].y = cp->get_y();
|
|
++n;
|
|
}
|
|
|
|
/* potentially insert final hidden (line) point to make the line draw
|
|
* from the last point to the very end
|
|
*/
|
|
|
|
double px = trackview.editor().duration_to_pixels_unrounded (model_to_view_coord_x (_offset + _maximum_time));
|
|
|
|
if (control_points[control_points.size() - 1]->get_x() != px && following != e.end()) {
|
|
double ty = model_to_view_coord_y (e.unlocked_eval (_offset + _maximum_time));
|
|
|
|
if (isnan_local (ty)) {
|
|
warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""), _name) << endmsg;
|
|
|
|
|
|
} else {
|
|
line_points[n].y = _height - (ty * _height);
|
|
line_points[n].x = px;
|
|
++n;
|
|
}
|
|
}
|
|
|
|
line_points.resize (n);
|
|
line->set_steps (line_points, is_stepped());
|
|
|
|
update_visibility ();
|
|
}
|
|
|
|
set_selected_points (trackview.editor().get_selection().points);
|
|
}
|
|
|
|
void
|
|
AutomationLine::reset ()
|
|
{
|
|
DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
|
|
update_pending = false;
|
|
have_reset_timeout = false;
|
|
|
|
if (no_draw) {
|
|
return;
|
|
}
|
|
|
|
/* TODO: abort any drags in progress, e.g. dragging points while writing automation
|
|
* (the control-point model, used by AutomationLine::drag_motion, will be invalid).
|
|
*
|
|
* Note: reset() may also be called from an aborted drag (LineDrag::aborted)
|
|
* maybe abort in list_changed(), interpolation_changed() and ... ?
|
|
* XXX
|
|
*/
|
|
|
|
alist->apply_to_points (*this, &AutomationLine::reset_callback);
|
|
}
|
|
|
|
void
|
|
AutomationLine::queue_reset ()
|
|
{
|
|
/* this must be called from the GUI thread */
|
|
|
|
if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
|
|
/* automation write pass ... defer to a timeout */
|
|
/* redraw in 1/4 second */
|
|
if (!have_reset_timeout) {
|
|
DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
|
|
Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
|
|
have_reset_timeout = true;
|
|
} else {
|
|
DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
|
|
}
|
|
} else {
|
|
reset ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::clear ()
|
|
{
|
|
/* parent must create and commit command */
|
|
XMLNode &before = alist->get_state();
|
|
alist->clear();
|
|
|
|
trackview.editor().session()->add_command (
|
|
new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
|
|
}
|
|
|
|
void
|
|
AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
|
|
{
|
|
alist = list;
|
|
queue_reset ();
|
|
connect_to_list ();
|
|
}
|
|
|
|
void
|
|
AutomationLine::add_visibility (VisibleAspects va)
|
|
{
|
|
VisibleAspects old = _visible;
|
|
|
|
_visible = VisibleAspects (_visible | va);
|
|
|
|
if (old != _visible) {
|
|
update_visibility ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::set_visibility (VisibleAspects va)
|
|
{
|
|
if (_visible != va) {
|
|
_visible = va;
|
|
update_visibility ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::remove_visibility (VisibleAspects va)
|
|
{
|
|
VisibleAspects old = _visible;
|
|
|
|
_visible = VisibleAspects (_visible & ~va);
|
|
|
|
if (old != _visible) {
|
|
update_visibility ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::track_entered()
|
|
{
|
|
add_visibility (ControlPoints);
|
|
}
|
|
|
|
void
|
|
AutomationLine::track_exited()
|
|
{
|
|
remove_visibility (ControlPoints);
|
|
}
|
|
|
|
XMLNode &
|
|
AutomationLine::get_state () const
|
|
{
|
|
/* function as a proxy for the model */
|
|
return alist->get_state();
|
|
}
|
|
|
|
int
|
|
AutomationLine::set_state (const XMLNode &node, int version)
|
|
{
|
|
/* function as a proxy for the model */
|
|
return alist->set_state (node, version);
|
|
}
|
|
|
|
void
|
|
AutomationLine::view_to_model_coord_y (double& y) const
|
|
{
|
|
if (alist->default_interpolation () != alist->interpolation()) {
|
|
switch (alist->interpolation()) {
|
|
case AutomationList::Discrete:
|
|
/* toggles and MIDI only -- see is_stepped() */
|
|
assert (alist->default_interpolation () == AutomationList::Linear);
|
|
break;
|
|
case AutomationList::Linear:
|
|
y = y * (_desc.upper - _desc.lower) + _desc.lower;
|
|
return;
|
|
default:
|
|
/* types that default to linear, can't be use
|
|
* Logarithmic or Exponential interpolation.
|
|
* "Curved" is invalid for automation (only x-fads)
|
|
*/
|
|
assert (0);
|
|
break;
|
|
}
|
|
}
|
|
y = _desc.from_interface (y);
|
|
}
|
|
|
|
double
|
|
AutomationLine::compute_delta (double from, double to) const
|
|
{
|
|
return _desc.compute_delta (from, to);
|
|
}
|
|
|
|
void
|
|
AutomationLine::apply_delta (double& val, double delta) const
|
|
{
|
|
if (val == 0 && !_desc.is_linear () && delta >= 1.0) {
|
|
/* recover from -inf */
|
|
val = 1.0 / _height;
|
|
view_to_model_coord_y (val);
|
|
return;
|
|
}
|
|
val = _desc.apply_delta (val, delta);
|
|
}
|
|
|
|
double
|
|
AutomationLine::model_to_view_coord_y (double y) const
|
|
{
|
|
if (alist->default_interpolation () != alist->interpolation()) {
|
|
switch (alist->interpolation()) {
|
|
case AutomationList::Discrete:
|
|
/* toggles and MIDI only -- see is_stepped */
|
|
assert (alist->default_interpolation () == AutomationList::Linear);
|
|
break;
|
|
case AutomationList::Linear:
|
|
return (y - _desc.lower) / (_desc.upper - _desc.lower);
|
|
default:
|
|
/* types that default to linear, can't be use
|
|
* Logarithmic or Exponential interpolation.
|
|
* "Curved" is invalid for automation (only x-fads)
|
|
*/
|
|
assert (0);
|
|
break;
|
|
}
|
|
}
|
|
return _desc.to_interface (y);
|
|
}
|
|
|
|
timecnt_t
|
|
AutomationLine::model_to_view_coord_x (timepos_t const & when) const
|
|
{
|
|
/* @param when is a distance (with implicit origin) from the start of the
|
|
* source. So we subtract the offset (from the region if this is
|
|
* related to a region; zero otherwise) to get the distance (again,
|
|
* implicit origin) from the start of the line.
|
|
*
|
|
* Then we construct a timecnt_t from this duration, and the origin of
|
|
* the line on the timeline.
|
|
*/
|
|
|
|
return timecnt_t (when.earlier (_offset), get_origin());
|
|
}
|
|
|
|
/** Called when our list has announced that its interpolation style has changed */
|
|
void
|
|
AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
|
|
{
|
|
if (line_points.size() > 1) {
|
|
reset ();
|
|
line->set_steps(line_points, is_stepped());
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
|
|
AutomationList::iterator model, uint32_t npoints)
|
|
{
|
|
ControlPoint::ShapeType shape;
|
|
|
|
if (view_index >= control_points.size()) {
|
|
|
|
/* make sure we have enough control points */
|
|
|
|
ControlPoint* ncp = new ControlPoint (*this);
|
|
ncp->set_size (control_point_box_size ());
|
|
|
|
control_points.push_back (ncp);
|
|
}
|
|
|
|
if (!terminal_points_can_slide) {
|
|
if (pi == 0) {
|
|
control_points[view_index]->set_can_slide (false);
|
|
if (tx == 0) {
|
|
shape = ControlPoint::Start;
|
|
} else {
|
|
shape = ControlPoint::Full;
|
|
}
|
|
} else if (pi == npoints - 1) {
|
|
control_points[view_index]->set_can_slide (false);
|
|
shape = ControlPoint::End;
|
|
} else {
|
|
control_points[view_index]->set_can_slide (true);
|
|
shape = ControlPoint::Full;
|
|
}
|
|
} else {
|
|
control_points[view_index]->set_can_slide (true);
|
|
shape = ControlPoint::Full;
|
|
}
|
|
|
|
control_points[view_index]->reset (tx, ty, model, view_index, shape);
|
|
|
|
/* finally, control visibility */
|
|
|
|
if (_visible & ControlPoints) {
|
|
control_points[view_index]->show ();
|
|
} else {
|
|
control_points[view_index]->hide ();
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::dump (std::ostream& ostr) const
|
|
{
|
|
for (auto const & cp : control_points) {
|
|
if (cp->model() != alist->end()) {
|
|
ostr << '#' << cp->view_index() << " @ " << cp->get_x() << ", " << cp->get_y() << " for " << (*cp->model())->value << " @ " << (*(cp->model()))->when << std::endl;
|
|
} else {
|
|
ostr << "dead point\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AutomationLine::connect_to_list ()
|
|
{
|
|
_list_connections.drop_connections ();
|
|
|
|
alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
|
|
|
|
alist->InterpolationChanged.connect (
|
|
_list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
|
|
}
|
|
|
|
MementoCommandBinder<AutomationList>*
|
|
AutomationLine::memento_command_binder ()
|
|
{
|
|
return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
|
|
}
|
|
|
|
/** Set the maximum time that points on this line can be at, relative
|
|
* to the start of the track or region that it is on.
|
|
*/
|
|
void
|
|
AutomationLine::set_maximum_time (Temporal::timepos_t const & t)
|
|
{
|
|
if (_maximum_time == t) {
|
|
return;
|
|
}
|
|
|
|
_maximum_time = t;
|
|
reset ();
|
|
}
|
|
|
|
|
|
/** @return min and max x positions of points that are in the list, in session samples */
|
|
pair<timepos_t, timepos_t>
|
|
AutomationLine::get_point_x_range () const
|
|
{
|
|
pair<timepos_t, timepos_t> r (timepos_t::max (the_list()->time_domain()), timepos_t::zero (the_list()->time_domain()));
|
|
|
|
for (auto const & cp : *the_list()) {
|
|
const timepos_t w (session_position (cp->when));
|
|
r.first = min (r.first, w);
|
|
r.second = max (r.second, w);
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
timepos_t
|
|
AutomationLine::session_position (timepos_t const & when) const
|
|
{
|
|
return when + get_origin();
|
|
}
|
|
|
|
void
|
|
AutomationLine::set_offset (timepos_t const & off)
|
|
{
|
|
_offset = off;
|
|
reset ();
|
|
}
|