2 Copyright (C) 2002-2003 Paul Davis
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.
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.
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.
25 // 'std::isnan()' is not available in MSVC.
26 #define isnan_local(val) (bool)_isnan((double)val)
28 #define isnan_local std::isnan
34 #include "boost/shared_ptr.hpp"
36 #include "pbd/floating.h"
37 #include "pbd/memento_command.h"
38 #include "pbd/stl_delete.h"
39 #include "pbd/stacktrace.h"
41 #include "ardour/automation_list.h"
42 #include "ardour/dB.h"
43 #include "ardour/debug.h"
44 #include "ardour/parameter_types.h"
45 #include "ardour/tempo.h"
47 #include "evoral/Curve.hpp"
49 #include "canvas/debug.h"
51 #include "automation_line.h"
52 #include "control_point.h"
53 #include "gui_thread.h"
54 #include "rgb_macros.h"
55 #include "public_editor.h"
56 #include "selection.h"
57 #include "time_axis_view.h"
58 #include "point_selection.h"
59 #include "automation_time_axis.h"
60 #include "ui_config.h"
62 #include "ardour/event_type_map.h"
63 #include "ardour/session.h"
64 #include "ardour/value_as_string.h"
69 using namespace ARDOUR;
71 using namespace Editing;
73 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
74 * This will not be deleted by AutomationLine.
76 AutomationLine::AutomationLine (const string& name,
78 ArdourCanvas::Item& parent,
79 boost::shared_ptr<AutomationList> al,
80 const ParameterDescriptor& desc,
81 Evoral::TimeConverter<double, framepos_t>* converter)
85 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
86 , _parent_group (parent)
88 , _maximum_time (max_framepos)
93 _our_time_converter = false;
95 _our_time_converter = true;
100 update_pending = false;
101 have_timeout = false;
102 _uses_gain_mapping = false;
105 terminal_points_can_slide = true;
108 group = new ArdourCanvas::Container (&parent, ArdourCanvas::Duple(0, 1.5));
109 CANVAS_DEBUG_NAME (group, "region gain envelope group");
111 line = new ArdourCanvas::PolyLine (group);
112 CANVAS_DEBUG_NAME (line, "region gain envelope line");
113 line->set_data ("line", this);
114 line->set_outline_width (2.0);
115 line->set_covers_threshold (4.0);
117 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
119 trackview.session()->register_with_memento_command_factory(alist->id(), this);
121 if (alist->parameter().type() == GainAutomation ||
122 alist->parameter().type() == TrimAutomation ||
123 alist->parameter().type() == EnvelopeAutomation) {
124 set_uses_gain_mapping (true);
127 interpolation_changed (alist->interpolation ());
132 AutomationLine::~AutomationLine ()
134 vector_delete (&control_points);
137 if (_our_time_converter) {
138 delete _time_converter;
143 AutomationLine::event_handler (GdkEvent* event)
145 return PublicEditor::instance().canvas_line_event (event, line, this);
149 AutomationLine::is_stepped() const
151 return (_desc.toggled ||
152 (alist && alist->interpolation() == AutomationList::Discrete));
156 AutomationLine::update_visibility ()
158 if (_visible & Line) {
159 /* Only show the line when there are some points, otherwise we may show an out-of-date line
160 when automation points have been removed (the line will still follow the shape of the
163 if (control_points.size() >= 2) {
169 if (_visible & ControlPoints) {
170 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
173 } else if (_visible & SelectedControlPoints) {
174 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
175 if ((*i)->selected()) {
182 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
189 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
190 if (_visible & ControlPoints) {
201 AutomationLine::hide ()
203 /* leave control points setting unchanged, we are just hiding the
207 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
211 AutomationLine::control_point_box_size ()
213 if (_height > TimeAxisView::preset_height (HeightLarger)) {
215 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
222 AutomationLine::set_height (guint32 h)
227 double bsz = control_point_box_size();
229 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
230 (*i)->set_size (bsz);
234 line->set_fill_y1 (_height);
236 line->set_fill_y1 (0);
243 AutomationLine::set_line_color (uint32_t color)
246 line->set_outline_color (color);
248 ArdourCanvas::SVAModifier mod = UIConfiguration::instance().modifier ("automation line fill");
250 line->set_fill_color ((color & 0xffffff00) + mod.a()*255);
254 AutomationLine::set_uses_gain_mapping (bool yn)
256 if (yn != _uses_gain_mapping) {
257 _uses_gain_mapping = yn;
263 AutomationLine::nth (uint32_t n)
265 if (n < control_points.size()) {
266 return control_points[n];
273 AutomationLine::nth (uint32_t n) const
275 if (n < control_points.size()) {
276 return control_points[n];
283 AutomationLine::modify_point_y (ControlPoint& cp, double y)
285 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
286 and needs to be converted to a canvas unit distance.
291 y = _height - (y * _height);
293 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
295 trackview.editor().begin_reversible_command (_("automation event move"));
296 trackview.editor().session()->add_command (
297 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
299 cp.move_to (x, y, ControlPoint::Full);
302 sync_model_with_view_point (cp);
305 reset_line_coords (cp);
307 if (line_points.size() > 1) {
308 line->set_steps (line_points, is_stepped());
311 update_pending = false;
313 trackview.editor().session()->add_command (
314 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
316 trackview.editor().commit_reversible_command ();
317 trackview.editor().session()->set_dirty ();
321 AutomationLine::reset_line_coords (ControlPoint& cp)
323 if (cp.view_index() < line_points.size()) {
324 line_points[cp.view_index()].x = cp.get_x ();
325 line_points[cp.view_index()].y = cp.get_y ();
330 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
332 update_pending = true;
335 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
336 moved = sync_model_with_view_point (**i) || moved;
343 AutomationLine::get_verbose_cursor_string (double fraction) const
345 std::string s = fraction_to_string (fraction);
346 if (_uses_gain_mapping) {
354 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
356 std::string s = fraction_to_string (fraction);
357 if (_uses_gain_mapping) {
361 std::string d = fraction_to_relative_string (original, fraction);
368 if (_uses_gain_mapping) {
379 * @param fraction y fraction
380 * @return string representation of this value, using dB if appropriate.
383 AutomationLine::fraction_to_string (double fraction) const
385 if (_uses_gain_mapping) {
387 if (_desc.type == GainAutomation || _desc.type == EnvelopeAutomation || _desc.lower == 0) {
388 if (fraction == 0.0) {
389 snprintf (buf, sizeof (buf), "-inf");
391 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, _desc.upper)));
394 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
395 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
396 snprintf (buf, sizeof (buf), "%.1f", lower_db + fraction * range_db);
400 view_to_model_coord_y (fraction);
401 return ARDOUR::value_as_string (_desc, fraction);
404 return ""; /*NOTREACHED*/
408 * @param original an old y-axis fraction
409 * @param fraction the new y fraction
410 * @return string representation of the difference between original and fraction, using dB if appropriate.
413 AutomationLine::fraction_to_relative_string (double original, double fraction) const
417 if (original == fraction) {
421 if (_uses_gain_mapping) {
422 if (original == 0.0) {
423 /* there is no sensible representation of a relative
424 change from -inf dB, so return an empty string.
427 } else if (fraction == 0.0) {
428 snprintf (buf, sizeof (buf), "-inf");
430 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
431 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
432 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
435 view_to_model_coord_y (original);
436 view_to_model_coord_y (fraction);
437 return ARDOUR::value_as_string (_desc, fraction - original);
444 * @param s Value string in the form as returned by fraction_to_string.
445 * @return Corresponding y fraction.
448 AutomationLine::string_to_fraction (string const & s) const
455 sscanf (s.c_str(), "%lf", &v);
457 if (_uses_gain_mapping) {
458 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
461 model_to_view_coord (dummy, v);
467 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
468 * are other selected points.
470 * @param cp Point to drag.
471 * @param x Initial x position (units).
472 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
475 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
477 trackview.editor().session()->add_command (
478 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
480 _drag_points.clear ();
481 _drag_points.push_back (cp);
483 if (cp->selected ()) {
484 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
485 if (*i != cp && (*i)->selected()) {
486 _drag_points.push_back (*i);
491 start_drag_common (x, fraction);
494 /** Start dragging a line vertically (with no change in x)
495 * @param i1 Control point index of the `left' point on the line.
496 * @param i2 Control point index of the `right' point on the line.
497 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
500 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
502 trackview.editor().session()->add_command (
503 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
505 _drag_points.clear ();
507 for (uint32_t i = i1; i <= i2; i++) {
508 _drag_points.push_back (nth (i));
511 start_drag_common (0, fraction);
514 /** Start dragging multiple points (with no change in x)
515 * @param cp Points to drag.
516 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
519 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
521 trackview.editor().session()->add_command (
522 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
525 start_drag_common (0, fraction);
528 struct ControlPointSorter
530 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
531 if (floateq (a->get_x(), b->get_x(), 1)) {
532 return a->view_index() < b->view_index();
534 return a->get_x() < b->get_x();
538 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
539 : line (al), before_x (0), after_x (DBL_MAX)
544 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
546 uint32_t sz = size();
548 if (sz > 0 && sz < line.npoints()) {
549 const TempoMap& map (e.session()->tempo_map());
551 /* determine the limits on x-axis motion for this
552 contiguous range of control points
555 if (front()->view_index() > 0) {
556 before_x = line.nth (front()->view_index() - 1)->get_x();
558 const framepos_t pos = e.pixel_to_sample(before_x);
559 const Meter& meter = map.meter_at_frame (pos);
560 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at_frame (pos), e.session()->frame_rate())
561 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
562 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
564 before_x += one_tick_in_pixels;
567 /* if our last point has a point after it in the line,
568 we have an "after" bound
571 if (back()->view_index() < (line.npoints() - 1)) {
572 after_x = line.nth (back()->view_index() + 1)->get_x();
574 const framepos_t pos = e.pixel_to_sample(after_x);
575 const Meter& meter = map.meter_at_frame (pos);
576 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at_frame (pos), e.session()->frame_rate())
577 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
578 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
580 after_x -= one_tick_in_pixels;
586 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
592 /* get the maximum distance we can move any of these points along the x-axis
595 double tx; /* possible position a point would move to, given dx */
599 /* check the last point, since we're moving later in time */
602 /* check the first point, since we're moving earlier in time */
606 tx = cp->get_x() + dx; // new possible position if we just add the motion
607 tx = max (tx, before_x); // can't move later than following point
608 tx = min (tx, after_x); // can't move earlier than preceeding point
609 return tx - cp->get_x ();
613 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
615 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
616 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
617 line.reset_line_coords (**i);
621 /** Common parts of starting a drag.
622 * @param x Starting x position in units, or 0 if x is being ignored.
623 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
626 AutomationLine::start_drag_common (double x, float fraction)
630 _last_drag_fraction = fraction;
631 _drag_had_movement = false;
634 /* they are probably ordered already, but we have to make sure */
636 _drag_points.sort (ControlPointSorter());
640 /** Should be called to indicate motion during a drag.
641 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
642 * @param fraction New y fraction.
643 * @return x position and y fraction that were actually used (once clamped).
646 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
648 if (_drag_points.empty()) {
649 return pair<double,float> (x,fraction);
652 double dx = ignore_x ? 0 : (x - _drag_x);
653 double dy = fraction - _last_drag_fraction;
655 if (!_drag_had_movement) {
657 /* "first move" ... do some stuff that we don't want to do if
658 no motion ever took place, but need to do before we handle
662 /* partition the points we are dragging into (potentially several)
663 * set(s) of contiguous points. this will not happen with a normal
664 * drag, but if the user does a discontiguous selection, it can.
667 uint32_t expected_view_index = 0;
670 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
671 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
672 contig.reset (new ContiguousControlPoints (*this));
673 contiguous_points.push_back (contig);
675 contig->push_back (*i);
676 expected_view_index = (*i)->view_index() + 1;
679 if (contiguous_points.back()->empty()) {
680 contiguous_points.pop_back ();
683 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
684 (*ccp)->compute_x_bounds (trackview.editor());
686 _drag_had_movement = true;
689 /* OK, now on to the stuff related to *this* motion event. First, for
690 * each contiguous range, figure out the maximum x-axis motion we are
691 * allowed (because of neighbouring points that are not moving.
693 * if we are moving forwards with push, we don't need to do this,
694 * since all later points will move too.
697 if (dx < 0 || ((dx > 0) && !with_push)) {
698 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
699 double dxt = (*ccp)->clamp_dx (dx);
700 if (fabs (dxt) < fabs (dx)) {
707 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
708 double const y = ((_height - (*i)->get_y()) / _height) + dy;
719 /* and now move each section */
721 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
722 (*ccp)->move (dx, dy);
725 final_index = contiguous_points.back()->back()->view_index () + 1;
727 uint32_t i = final_index;
728 while ((p = nth (i)) != 0 && p->can_slide()) {
729 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
730 reset_line_coords (*p);
735 /* update actual line coordinates (will queue a redraw)
738 if (line_points.size() > 1) {
739 line->set_steps (line_points, is_stepped());
742 double const result_frac = _last_drag_fraction + dy;
743 _drag_distance += dx;
745 _last_drag_fraction = result_frac;
746 did_push = with_push;
748 return pair<double, float> (_drag_x + dx, result_frac);
751 /** Should be called to indicate the end of a drag */
753 AutomationLine::end_drag (bool with_push, uint32_t final_index)
755 if (!_drag_had_movement) {
760 bool moved = sync_model_with_view_points (_drag_points);
764 uint32_t i = final_index;
765 while ((p = nth (i)) != 0 && p->can_slide()) {
766 moved = sync_model_with_view_point (*p) || moved;
773 update_pending = false;
776 /* A point has moved as a result of sync (clamped to integer or boolean
777 value), update line accordingly. */
778 line->set_steps (line_points, is_stepped());
781 trackview.editor().session()->add_command (
782 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
784 trackview.editor().session()->set_dirty ();
787 contiguous_points.clear ();
791 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
793 /* find out where the visual control point is.
794 initial results are in canvas units. ask the
795 line to convert them to something relevant.
798 double view_x = cp.get_x();
799 double view_y = 1.0 - (cp.get_y() / _height);
801 /* if xval has not changed, set it directly from the model to avoid rounding errors */
803 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
804 view_x = (*cp.model())->when - _offset;
806 view_x = trackview.editor().pixel_to_sample (view_x);
807 view_x = _time_converter->from (view_x + _offset);
810 update_pending = true;
812 view_to_model_coord_y (view_y);
814 alist->modify (cp.model(), view_x, view_y);
816 /* convert back from model to view y for clamping position (for integer/boolean/etc) */
817 model_to_view_coord_y (view_y);
818 const double point_y = _height - (view_y * _height);
819 if (point_y != cp.get_y()) {
820 cp.move_to (cp.get_x(), point_y, ControlPoint::Full);
821 reset_line_coords (cp);
829 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
831 ControlPoint *bcp = 0;
832 ControlPoint *acp = 0;
835 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
837 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
839 if ((*i)->get_x() <= unit_xval) {
841 if (!bcp || (*i)->get_x() > bcp->get_x()) {
843 before = bcp->view_index();
846 } else if ((*i)->get_x() > unit_xval) {
848 after = acp->view_index();
857 AutomationLine::is_last_point (ControlPoint& cp)
859 // If the list is not empty, and the point is the last point in the list
861 if (alist->empty()) {
865 AutomationList::const_iterator i = alist->end();
868 if (cp.model() == i) {
876 AutomationLine::is_first_point (ControlPoint& cp)
878 // If the list is not empty, and the point is the first point in the list
880 if (!alist->empty() && cp.model() == alist->begin()) {
887 // This is copied into AudioRegionGainLine
889 AutomationLine::remove_point (ControlPoint& cp)
891 trackview.editor().begin_reversible_command (_("remove control point"));
892 XMLNode &before = alist->get_state();
894 trackview.editor ().get_selection ().clear_points ();
895 alist->erase (cp.model());
897 trackview.editor().session()->add_command(
898 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
900 trackview.editor().commit_reversible_command ();
901 trackview.editor().session()->set_dirty ();
904 /** Get selectable points within an area.
905 * @param start Start position in session frames.
906 * @param end End position in session frames.
907 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
908 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
909 * @param result Filled in with selectable things; in this case, ControlPoints.
912 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
914 /* convert fractions to display coordinates with 0 at the top of the track */
915 double const bot_track = (1 - topfrac) * trackview.current_height ();
916 double const top_track = (1 - botfrac) * trackview.current_height ();
918 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
919 double const model_when = (*(*i)->model())->when;
921 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
922 (as it is the session frame position of the start of the source)
925 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
927 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
928 results.push_back (*i);
934 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
940 AutomationLine::set_selected_points (PointSelection const & points)
942 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
943 (*i)->set_selected (false);
946 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
947 (*i)->set_selected (true);
950 if (points.empty()) {
951 remove_visibility (SelectedControlPoints);
953 add_visibility (SelectedControlPoints);
960 AutomationLine::set_colors ()
962 set_line_color (UIConfiguration::instance().color ("automation line"));
963 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
969 AutomationLine::list_changed ()
971 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
973 if (!update_pending) {
974 update_pending = true;
975 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
980 AutomationLine::reset_callback (const Evoral::ControlList& events)
986 if (events.empty()) {
987 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
990 control_points.clear ();
995 /* hide all existing points, and the line */
997 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
1004 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
1006 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
1008 double tx = (*ai)->when;
1009 double ty = (*ai)->value;
1011 /* convert from model coordinates to canonical view coordinates */
1013 model_to_view_coord (tx, ty);
1015 if (isnan_local (tx) || isnan_local (ty)) {
1016 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
1021 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
1025 /* convert x-coordinate to a canvas unit coordinate (this takes
1026 * zoom and scroll into account).
1029 tx = trackview.editor().sample_to_pixel_unrounded (tx);
1031 /* convert from canonical view height (0..1.0) to actual
1032 * height coordinates (using X11's top-left rooted system)
1035 ty = _height - (ty * _height);
1037 add_visible_control_point (vp, pi, tx, ty, ai, np);
1041 /* discard extra CP's to avoid confusing ourselves */
1043 while (control_points.size() > vp) {
1044 ControlPoint* cp = control_points.back();
1045 control_points.pop_back ();
1049 if (!terminal_points_can_slide) {
1050 control_points.back()->set_can_slide(false);
1055 /* reset the line coordinates given to the CanvasLine */
1057 while (line_points.size() < vp) {
1058 line_points.push_back (ArdourCanvas::Duple (0,0));
1061 while (line_points.size() > vp) {
1062 line_points.pop_back ();
1065 for (uint32_t n = 0; n < vp; ++n) {
1066 line_points[n].x = control_points[n]->get_x();
1067 line_points[n].y = control_points[n]->get_y();
1070 line->set_steps (line_points, is_stepped());
1072 update_visibility ();
1075 set_selected_points (trackview.editor().get_selection().points);
1079 AutomationLine::reset ()
1081 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1082 update_pending = false;
1083 have_timeout = false;
1089 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1093 AutomationLine::queue_reset ()
1095 /* this must be called from the GUI thread
1098 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1099 /* automation write pass ... defer to a timeout */
1100 /* redraw in 1/4 second */
1101 if (!have_timeout) {
1102 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1103 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1104 have_timeout = true;
1106 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1114 AutomationLine::clear ()
1116 /* parent must create and commit command */
1117 XMLNode &before = alist->get_state();
1120 trackview.editor().session()->add_command (
1121 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1125 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1133 AutomationLine::add_visibility (VisibleAspects va)
1135 VisibleAspects old = _visible;
1137 _visible = VisibleAspects (_visible | va);
1139 if (old != _visible) {
1140 update_visibility ();
1145 AutomationLine::set_visibility (VisibleAspects va)
1147 if (_visible != va) {
1149 update_visibility ();
1154 AutomationLine::remove_visibility (VisibleAspects va)
1156 VisibleAspects old = _visible;
1158 _visible = VisibleAspects (_visible & ~va);
1160 if (old != _visible) {
1161 update_visibility ();
1166 AutomationLine::track_entered()
1168 add_visibility (ControlPoints);
1172 AutomationLine::track_exited()
1174 remove_visibility (ControlPoints);
1178 AutomationLine::get_state (void)
1180 /* function as a proxy for the model */
1181 return alist->get_state();
1185 AutomationLine::set_state (const XMLNode &node, int version)
1187 /* function as a proxy for the model */
1188 return alist->set_state (node, version);
1192 AutomationLine::view_to_model_coord (double& x, double& y) const
1194 x = _time_converter->from (x);
1195 view_to_model_coord_y (y);
1199 AutomationLine::view_to_model_coord_y (double& y) const
1201 /* TODO: This should be more generic (use ParameterDescriptor)
1202 * or better yet: Controllable -> set_interface();
1205 if ( alist->parameter().type() == GainAutomation
1206 || alist->parameter().type() == EnvelopeAutomation
1207 || (_desc.logarithmic && _desc.lower == 0. && _desc.upper > _desc.lower)) {
1208 y = slider_position_to_gain_with_max (y, _desc.upper);
1209 y = max ((double)_desc.lower, y);
1210 y = min ((double)_desc.upper, y);
1211 } else if (alist->parameter().type() == TrimAutomation
1212 || (_desc.logarithmic && _desc.lower * _desc.upper > 0 && _desc.upper > _desc.lower)) {
1213 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1214 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1217 y = dB_to_coefficient (lower_db + y * range_db);
1218 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1219 alist->parameter().type() == PanElevationAutomation) {
1221 y = max ((double) _desc.lower, y);
1222 y = min ((double) _desc.upper, y);
1223 } else if (alist->parameter().type() == PanWidthAutomation) {
1225 y = max ((double) _desc.lower, y);
1226 y = min ((double) _desc.upper, y);
1228 y = y * (double)(alist->get_max_y() - alist->get_min_y()) + alist->get_min_y();
1229 if (_desc.integer_step) {
1231 } else if (_desc.toggled) {
1232 y = (y > 0.5) ? 1.0 : 0.0;
1234 y = max ((double) _desc.lower, y);
1235 y = min ((double) _desc.upper, y);
1240 AutomationLine::model_to_view_coord_y (double& y) const
1242 /* TODO: This should be more generic (use ParameterDescriptor) */
1243 if ( alist->parameter().type() == GainAutomation
1244 || alist->parameter().type() == EnvelopeAutomation
1245 || (_desc.logarithmic && _desc.lower == 0. && _desc.upper > _desc.lower)) {
1246 y = gain_to_slider_position_with_max (y, _desc.upper);
1247 } else if (alist->parameter().type() == TrimAutomation
1248 || (_desc.logarithmic && _desc.lower * _desc.upper > 0 && _desc.upper > _desc.lower)) {
1249 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1250 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1251 y = (accurate_coefficient_to_dB (y) - lower_db) / range_db;
1252 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1253 alist->parameter().type() == PanElevationAutomation) {
1255 } else if (alist->parameter().type() == PanWidthAutomation) {
1258 y = (y - alist->get_min_y()) / (double)(alist->get_max_y() - alist->get_min_y());
1263 AutomationLine::model_to_view_coord (double& x, double& y) const
1265 model_to_view_coord_y (y);
1266 x = _time_converter->to (x) - _offset;
1269 /** Called when our list has announced that its interpolation style has changed */
1271 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1273 if (line_points.size() > 1) {
1274 line->set_steps(line_points, is_stepped());
1279 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1280 AutomationList::iterator model, uint32_t npoints)
1282 ControlPoint::ShapeType shape;
1284 if (view_index >= control_points.size()) {
1286 /* make sure we have enough control points */
1288 ControlPoint* ncp = new ControlPoint (*this);
1289 ncp->set_size (control_point_box_size ());
1291 control_points.push_back (ncp);
1294 if (!terminal_points_can_slide) {
1296 control_points[view_index]->set_can_slide (false);
1298 shape = ControlPoint::Start;
1300 shape = ControlPoint::Full;
1302 } else if (pi == npoints - 1) {
1303 control_points[view_index]->set_can_slide (false);
1304 shape = ControlPoint::End;
1306 control_points[view_index]->set_can_slide (true);
1307 shape = ControlPoint::Full;
1310 control_points[view_index]->set_can_slide (true);
1311 shape = ControlPoint::Full;
1314 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1316 /* finally, control visibility */
1318 if (_visible & ControlPoints) {
1319 control_points[view_index]->show ();
1321 control_points[view_index]->hide ();
1326 AutomationLine::connect_to_list ()
1328 _list_connections.drop_connections ();
1330 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1332 alist->InterpolationChanged.connect (
1333 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1336 MementoCommandBinder<AutomationList>*
1337 AutomationLine::memento_command_binder ()
1339 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1342 /** Set the maximum time that points on this line can be at, relative
1343 * to the start of the track or region that it is on.
1346 AutomationLine::set_maximum_time (framecnt_t t)
1348 if (_maximum_time == t) {
1357 /** @return min and max x positions of points that are in the list, in session frames */
1358 pair<framepos_t, framepos_t>
1359 AutomationLine::get_point_x_range () const
1361 pair<framepos_t, framepos_t> r (max_framepos, 0);
1363 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1364 r.first = min (r.first, session_position (i));
1365 r.second = max (r.second, session_position (i));
1372 AutomationLine::session_position (AutomationList::const_iterator p) const
1374 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1378 AutomationLine::set_offset (framepos_t off)
1380 if (_offset == off) {