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
35 #include "boost/shared_ptr.hpp"
37 #include "pbd/floating.h"
38 #include "pbd/memento_command.h"
39 #include "pbd/stl_delete.h"
40 #include "pbd/stacktrace.h"
42 #include "ardour/automation_list.h"
43 #include "ardour/dB.h"
44 #include "ardour/debug.h"
45 #include "ardour/parameter_types.h"
46 #include "ardour/tempo.h"
48 #include "evoral/Curve.hpp"
50 #include "canvas/debug.h"
52 #include "automation_line.h"
53 #include "control_point.h"
54 #include "gui_thread.h"
55 #include "rgb_macros.h"
56 #include "ardour_ui.h"
57 #include "public_editor.h"
58 #include "selection.h"
59 #include "time_axis_view.h"
60 #include "point_selection.h"
61 #include "automation_time_axis.h"
63 #include "ardour/event_type_map.h"
64 #include "ardour/session.h"
65 #include "ardour/value_as_string.h"
70 using namespace ARDOUR;
72 using namespace Editing;
74 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
75 * This will not be deleted by AutomationLine.
77 AutomationLine::AutomationLine (const string& name,
79 ArdourCanvas::Item& parent,
80 boost::shared_ptr<AutomationList> al,
81 const ParameterDescriptor& desc,
82 Evoral::TimeConverter<double, framepos_t>* converter)
86 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
87 , _parent_group (parent)
89 , _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 desc.unit == ParameterDescriptor::DB) {
125 set_uses_gain_mapping (true);
128 interpolation_changed (alist->interpolation ());
133 AutomationLine::~AutomationLine ()
135 vector_delete (&control_points);
138 if (_our_time_converter) {
139 delete _time_converter;
144 AutomationLine::event_handler (GdkEvent* event)
146 return PublicEditor::instance().canvas_line_event (event, line, this);
150 AutomationLine::is_stepped() const
152 return (_desc.toggled ||
153 (alist && alist->interpolation() == AutomationList::Discrete));
157 AutomationLine::update_visibility ()
159 if (_visible & Line) {
160 /* Only show the line when there are some points, otherwise we may show an out-of-date line
161 when automation points have been removed (the line will still follow the shape of the
164 if (control_points.size() >= 2) {
170 if (_visible & ControlPoints) {
171 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
174 } else if (_visible & SelectedControlPoints) {
175 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
176 if ((*i)->get_selected()) {
183 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
190 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
191 if (_visible & ControlPoints) {
202 AutomationLine::hide ()
204 /* leave control points setting unchanged, we are just hiding the
208 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
212 AutomationLine::control_point_box_size ()
214 if (_height > TimeAxisView::preset_height (HeightLarger)) {
216 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
223 AutomationLine::set_height (guint32 h)
228 double bsz = control_point_box_size();
230 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
231 (*i)->set_size (bsz);
239 AutomationLine::set_line_color (uint32_t color)
242 line->set_outline_color (color);
246 AutomationLine::set_uses_gain_mapping (bool yn)
248 if (yn != _uses_gain_mapping) {
249 _uses_gain_mapping = yn;
255 AutomationLine::nth (uint32_t n)
257 if (n < control_points.size()) {
258 return control_points[n];
265 AutomationLine::nth (uint32_t n) const
267 if (n < control_points.size()) {
268 return control_points[n];
275 AutomationLine::modify_point_y (ControlPoint& cp, double y)
277 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
278 and needs to be converted to a canvas unit distance.
283 y = _height - (y * _height);
285 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
287 trackview.editor().begin_reversible_command (_("automation event move"));
288 trackview.editor().session()->add_command (
289 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
291 cp.move_to (x, y, ControlPoint::Full);
294 sync_model_with_view_point (cp);
297 reset_line_coords (cp);
299 if (line_points.size() > 1) {
300 line->set_steps (line_points, is_stepped());
303 update_pending = false;
305 trackview.editor().session()->add_command (
306 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
308 trackview.editor().commit_reversible_command ();
309 trackview.editor().session()->set_dirty ();
313 AutomationLine::reset_line_coords (ControlPoint& cp)
315 if (cp.view_index() < line_points.size()) {
316 line_points[cp.view_index()].x = cp.get_x ();
317 line_points[cp.view_index()].y = cp.get_y ();
322 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
324 update_pending = true;
327 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
328 moved = sync_model_with_view_point (**i) || moved;
335 AutomationLine::get_verbose_cursor_string (double fraction) const
337 std::string s = fraction_to_string (fraction);
338 if (_uses_gain_mapping) {
346 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
348 std::string s = fraction_to_string (fraction);
349 if (_uses_gain_mapping) {
353 std::string d = fraction_to_relative_string (original, fraction);
360 if (_uses_gain_mapping) {
371 * @param fraction y fraction
372 * @return string representation of this value, using dB if appropriate.
375 AutomationLine::fraction_to_string (double fraction) const
377 if (_uses_gain_mapping) {
379 if (_desc.type == GainAutomation) {
380 if (fraction == 0.0) {
381 snprintf (buf, sizeof (buf), "-inf");
383 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, _desc.upper)));
386 float coeff = _desc.lower + fraction * (_desc.upper - _desc.lower);
388 snprintf (buf, sizeof (buf), "-inf");
390 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (coeff));
395 view_to_model_coord_y (fraction);
396 return ARDOUR::value_as_string (_desc, fraction);
399 return ""; /*NOTREACHED*/
403 * @param original an old y-axis fraction
404 * @param fraction the new y fraction
405 * @return string representation of the difference between original and fraction, using dB if appropriate.
408 AutomationLine::fraction_to_relative_string (double original, double fraction) const
412 if (original == fraction) {
416 if (_uses_gain_mapping) {
417 if (original == 0.0) {
418 /* there is no sensible representation of a relative
419 change from -inf dB, so return an empty string.
422 } else if (fraction == 0.0) {
423 snprintf (buf, sizeof (buf), "-inf");
425 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
426 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
427 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
430 view_to_model_coord_y (original);
431 view_to_model_coord_y (fraction);
432 return ARDOUR::value_as_string (_desc, fraction - original);
439 * @param s Value string in the form as returned by fraction_to_string.
440 * @return Corresponding y fraction.
443 AutomationLine::string_to_fraction (string const & s) const
450 sscanf (s.c_str(), "%lf", &v);
452 if (_uses_gain_mapping) {
453 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
456 model_to_view_coord (dummy, v);
462 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
463 * are other selected points.
465 * @param cp Point to drag.
466 * @param x Initial x position (units).
467 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
470 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
472 trackview.editor().begin_reversible_command (_("automation event move"));
473 trackview.editor().session()->add_command (
474 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
476 _drag_points.clear ();
477 _drag_points.push_back (cp);
479 if (cp->get_selected ()) {
480 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
481 if (*i != cp && (*i)->get_selected()) {
482 _drag_points.push_back (*i);
487 start_drag_common (x, fraction);
490 /** Start dragging a line vertically (with no change in x)
491 * @param i1 Control point index of the `left' point on the line.
492 * @param i2 Control point index of the `right' point on the line.
493 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
496 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
498 trackview.editor().begin_reversible_command (_("automation range move"));
499 trackview.editor().session()->add_command (
500 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
502 _drag_points.clear ();
504 for (uint32_t i = i1; i <= i2; i++) {
505 _drag_points.push_back (nth (i));
508 start_drag_common (0, fraction);
511 /** Start dragging multiple points (with no change in x)
512 * @param cp Points to drag.
513 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
516 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
518 trackview.editor().begin_reversible_command (_("automation range move"));
519 trackview.editor().session()->add_command (
520 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
523 start_drag_common (0, fraction);
526 struct ControlPointSorter
528 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
529 if (floateq (a->get_x(), b->get_x(), 1)) {
530 return a->view_index() < b->view_index();
532 return a->get_x() < b->get_x();
536 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
537 : line (al), before_x (0), after_x (DBL_MAX)
542 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
544 uint32_t sz = size();
546 if (sz > 0 && sz < line.npoints()) {
547 const TempoMap& map (e.session()->tempo_map());
549 /* determine the limits on x-axis motion for this
550 contiguous range of control points
553 if (front()->view_index() > 0) {
554 before_x = line.nth (front()->view_index() - 1)->get_x();
556 const framepos_t pos = e.pixel_to_sample(before_x);
557 const Meter& meter = map.meter_at (pos);
558 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
559 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
560 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
562 before_x += one_tick_in_pixels;
565 /* if our last point has a point after it in the line,
566 we have an "after" bound
569 if (back()->view_index() < (line.npoints() - 1)) {
570 after_x = line.nth (back()->view_index() + 1)->get_x();
572 const framepos_t pos = e.pixel_to_sample(after_x);
573 const Meter& meter = map.meter_at (pos);
574 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
575 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
576 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
578 after_x -= one_tick_in_pixels;
584 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
590 /* get the maximum distance we can move any of these points along the x-axis
593 double tx; /* possible position a point would move to, given dx */
597 /* check the last point, since we're moving later in time */
600 /* check the first point, since we're moving earlier in time */
604 tx = cp->get_x() + dx; // new possible position if we just add the motion
605 tx = max (tx, before_x); // can't move later than following point
606 tx = min (tx, after_x); // can't move earlier than preceeding point
607 return tx - cp->get_x ();
611 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
613 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
614 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
615 line.reset_line_coords (**i);
619 /** Common parts of starting a drag.
620 * @param x Starting x position in units, or 0 if x is being ignored.
621 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
624 AutomationLine::start_drag_common (double x, float fraction)
628 _last_drag_fraction = fraction;
629 _drag_had_movement = false;
632 /* they are probably ordered already, but we have to make sure */
634 _drag_points.sort (ControlPointSorter());
638 /** Should be called to indicate motion during a drag.
639 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
640 * @param fraction New y fraction.
641 * @return x position and y fraction that were actually used (once clamped).
644 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
646 if (_drag_points.empty()) {
647 return pair<double,float> (x,fraction);
650 double dx = ignore_x ? 0 : (x - _drag_x);
651 double dy = fraction - _last_drag_fraction;
653 if (!_drag_had_movement) {
655 /* "first move" ... do some stuff that we don't want to do if
656 no motion ever took place, but need to do before we handle
660 /* partition the points we are dragging into (potentially several)
661 * set(s) of contiguous points. this will not happen with a normal
662 * drag, but if the user does a discontiguous selection, it can.
665 uint32_t expected_view_index = 0;
668 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
669 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
670 contig.reset (new ContiguousControlPoints (*this));
671 contiguous_points.push_back (contig);
673 contig->push_back (*i);
674 expected_view_index = (*i)->view_index() + 1;
677 if (contiguous_points.back()->empty()) {
678 contiguous_points.pop_back ();
681 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
682 (*ccp)->compute_x_bounds (trackview.editor());
686 /* OK, now on to the stuff related to *this* motion event. First, for
687 * each contiguous range, figure out the maximum x-axis motion we are
688 * allowed (because of neighbouring points that are not moving.
690 * if we are moving forwards with push, we don't need to do this,
691 * since all later points will move too.
694 if (dx < 0 || ((dx > 0) && !with_push)) {
695 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
696 double dxt = (*ccp)->clamp_dx (dx);
697 if (fabs (dxt) < fabs (dx)) {
705 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
706 double const y = ((_height - (*i)->get_y()) / _height) + dy;
717 /* and now move each section */
719 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
720 (*ccp)->move (dx, dy);
723 final_index = contiguous_points.back()->back()->view_index () + 1;
725 uint32_t i = final_index;
726 while ((p = nth (i)) != 0 && p->can_slide()) {
727 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
728 reset_line_coords (*p);
733 /* update actual line coordinates (will queue a redraw)
736 if (line_points.size() > 1) {
737 line->set_steps (line_points, is_stepped());
741 _drag_distance += dx;
743 _last_drag_fraction = fraction;
744 _drag_had_movement = true;
745 did_push = with_push;
747 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
750 /** Should be called to indicate the end of a drag */
752 AutomationLine::end_drag (bool with_push, uint32_t final_index)
754 if (!_drag_had_movement) {
759 bool moved = sync_model_with_view_points (_drag_points);
763 uint32_t i = final_index;
764 while ((p = nth (i)) != 0 && p->can_slide()) {
765 moved = sync_model_with_view_point (*p) || moved;
772 update_pending = false;
775 /* A point has moved as a result of sync (clamped to integer or boolean
776 value), update line accordingly. */
777 line->set_steps (line_points, is_stepped());
780 trackview.editor().session()->add_command (
781 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
783 trackview.editor().session()->set_dirty ();
786 contiguous_points.clear ();
790 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
792 /* find out where the visual control point is.
793 initial results are in canvas units. ask the
794 line to convert them to something relevant.
797 double view_x = cp.get_x();
798 double view_y = 1.0 - (cp.get_y() / _height);
800 /* if xval has not changed, set it directly from the model to avoid rounding errors */
802 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
803 view_x = (*cp.model())->when - _offset;
805 view_x = trackview.editor().pixel_to_sample (view_x);
806 view_x = _time_converter->from (view_x + _offset);
809 update_pending = true;
811 view_to_model_coord_y (view_y);
813 alist->modify (cp.model(), view_x, view_y);
815 /* convert back from model to view y for clamping position (for integer/boolean/etc) */
816 model_to_view_coord_y (view_y);
817 const double point_y = _height - (view_y * _height);
818 if (point_y != cp.get_y()) {
819 cp.move_to (cp.get_x(), point_y, ControlPoint::Full);
820 reset_line_coords (cp);
828 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
830 ControlPoint *bcp = 0;
831 ControlPoint *acp = 0;
834 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
836 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
838 if ((*i)->get_x() <= unit_xval) {
840 if (!bcp || (*i)->get_x() > bcp->get_x()) {
842 before = bcp->view_index();
845 } else if ((*i)->get_x() > unit_xval) {
847 after = acp->view_index();
856 AutomationLine::is_last_point (ControlPoint& cp)
858 // If the list is not empty, and the point is the last point in the list
860 if (alist->empty()) {
864 AutomationList::const_iterator i = alist->end();
867 if (cp.model() == i) {
875 AutomationLine::is_first_point (ControlPoint& cp)
877 // If the list is not empty, and the point is the first point in the list
879 if (!alist->empty() && cp.model() == alist->begin()) {
886 // This is copied into AudioRegionGainLine
888 AutomationLine::remove_point (ControlPoint& cp)
890 trackview.editor().begin_reversible_command (_("remove control point"));
891 XMLNode &before = alist->get_state();
893 alist->erase (cp.model());
895 trackview.editor().session()->add_command(
896 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
898 trackview.editor().commit_reversible_command ();
899 trackview.editor().session()->set_dirty ();
902 /** Get selectable points within an area.
903 * @param start Start position in session frames.
904 * @param end End position in session frames.
905 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
906 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
907 * @param result Filled in with selectable things; in this case, ControlPoints.
910 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
912 /* convert fractions to display coordinates with 0 at the top of the track */
913 double const bot_track = (1 - topfrac) * trackview.current_height ();
914 double const top_track = (1 - botfrac) * trackview.current_height ();
916 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
917 double const model_when = (*(*i)->model())->when;
919 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
920 (as it is the session frame position of the start of the source)
923 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
925 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
926 results.push_back (*i);
932 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
938 AutomationLine::set_selected_points (PointSelection const & points)
940 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
941 (*i)->set_selected (false);
944 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
945 (*i)->set_selected (true);
948 if (points.empty()) {
949 remove_visibility (SelectedControlPoints);
951 add_visibility (SelectedControlPoints);
957 void AutomationLine::set_colors ()
959 set_line_color (ARDOUR_UI::config()->color ("automation line"));
960 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
966 AutomationLine::list_changed ()
968 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
970 if (!update_pending) {
971 update_pending = true;
972 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
977 AutomationLine::reset_callback (const Evoral::ControlList& events)
983 if (events.empty()) {
984 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
987 control_points.clear ();
992 /* hide all existing points, and the line */
994 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
1001 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
1003 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
1005 double tx = (*ai)->when;
1006 double ty = (*ai)->value;
1008 /* convert from model coordinates to canonical view coordinates */
1010 model_to_view_coord (tx, ty);
1012 if (isnan_local (tx) || isnan_local (ty)) {
1013 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
1018 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
1022 /* convert x-coordinate to a canvas unit coordinate (this takes
1023 * zoom and scroll into account).
1026 tx = trackview.editor().sample_to_pixel_unrounded (tx);
1028 /* convert from canonical view height (0..1.0) to actual
1029 * height coordinates (using X11's top-left rooted system)
1032 ty = _height - (ty * _height);
1034 add_visible_control_point (vp, pi, tx, ty, ai, np);
1038 /* discard extra CP's to avoid confusing ourselves */
1040 while (control_points.size() > vp) {
1041 ControlPoint* cp = control_points.back();
1042 control_points.pop_back ();
1046 if (!terminal_points_can_slide) {
1047 control_points.back()->set_can_slide(false);
1052 /* reset the line coordinates given to the CanvasLine */
1054 while (line_points.size() < vp) {
1055 line_points.push_back (ArdourCanvas::Duple (0,0));
1058 while (line_points.size() > vp) {
1059 line_points.pop_back ();
1062 for (uint32_t n = 0; n < vp; ++n) {
1063 line_points[n].x = control_points[n]->get_x();
1064 line_points[n].y = control_points[n]->get_y();
1067 line->set_steps (line_points, is_stepped());
1069 update_visibility ();
1072 set_selected_points (trackview.editor().get_selection().points);
1076 AutomationLine::reset ()
1078 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1079 update_pending = false;
1080 have_timeout = false;
1086 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1090 AutomationLine::queue_reset ()
1092 /* this must be called from the GUI thread
1095 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1096 /* automation write pass ... defer to a timeout */
1097 /* redraw in 1/4 second */
1098 if (!have_timeout) {
1099 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1100 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1101 have_timeout = true;
1103 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1111 AutomationLine::clear ()
1113 /* parent must create and commit command */
1114 XMLNode &before = alist->get_state();
1117 trackview.editor().session()->add_command (
1118 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1122 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1130 AutomationLine::add_visibility (VisibleAspects va)
1132 VisibleAspects old = _visible;
1134 _visible = VisibleAspects (_visible | va);
1136 if (old != _visible) {
1137 update_visibility ();
1142 AutomationLine::set_visibility (VisibleAspects va)
1144 if (_visible != va) {
1146 update_visibility ();
1151 AutomationLine::remove_visibility (VisibleAspects va)
1153 VisibleAspects old = _visible;
1155 _visible = VisibleAspects (_visible & ~va);
1157 if (old != _visible) {
1158 update_visibility ();
1163 AutomationLine::track_entered()
1165 add_visibility (ControlPoints);
1169 AutomationLine::track_exited()
1171 remove_visibility (ControlPoints);
1175 AutomationLine::get_state (void)
1177 /* function as a proxy for the model */
1178 return alist->get_state();
1182 AutomationLine::set_state (const XMLNode &node, int version)
1184 /* function as a proxy for the model */
1185 return alist->set_state (node, version);
1189 AutomationLine::view_to_model_coord (double& x, double& y) const
1191 x = _time_converter->from (x);
1192 view_to_model_coord_y (y);
1196 AutomationLine::view_to_model_coord_y (double& y) const
1198 /* TODO: This should be more generic (use ParameterDescriptor)
1199 * or better yet: Controllable -> set_interface();
1201 if ( alist->parameter().type() == GainAutomation
1202 || alist->parameter().type() == EnvelopeAutomation
1203 || (_desc.unit == ParameterDescriptor::DB && _desc.lower == 0.)) {
1204 y = slider_position_to_gain_with_max (y, _desc.upper);
1205 y = max ((double)_desc.lower, y);
1206 y = min ((double)_desc.upper, y);
1207 } else if (alist->parameter().type() == TrimAutomation
1208 || (_desc.unit == ParameterDescriptor::DB && _desc.lower > 0 && _desc.upper > _desc.lower)) {
1209 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1210 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1213 y = dB_to_coefficient (lower_db + y * range_db);
1214 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1215 alist->parameter().type() == PanElevationAutomation) {
1217 } else if (alist->parameter().type() == PanWidthAutomation) {
1220 y = y * (double)(alist->get_max_y() - alist->get_min_y()) + alist->get_min_y();
1221 if (_desc.integer_step) {
1223 } else if (_desc.toggled) {
1224 y = (y > 0.5) ? 1.0 : 0.0;
1230 AutomationLine::model_to_view_coord_y (double& y) const
1232 /* TODO: This should be more generic (use ParameterDescriptor) */
1233 if ( alist->parameter().type() == GainAutomation
1234 || alist->parameter().type() == EnvelopeAutomation
1235 || (_desc.unit == ParameterDescriptor::DB && _desc.lower == 0.)) {
1236 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1237 } else if (alist->parameter().type() == TrimAutomation
1238 || (_desc.unit == ParameterDescriptor::DB && _desc.lower > 0 && _desc.upper > _desc.lower)) {
1239 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1240 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1241 y = (accurate_coefficient_to_dB (y) - lower_db) / range_db;
1242 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1243 alist->parameter().type() == PanElevationAutomation) {
1245 } else if (alist->parameter().type() == PanWidthAutomation) {
1248 y = (y - alist->get_min_y()) / (double)(alist->get_max_y() - alist->get_min_y());
1253 AutomationLine::model_to_view_coord (double& x, double& y) const
1255 model_to_view_coord_y (y);
1256 x = _time_converter->to (x) - _offset;
1259 /** Called when our list has announced that its interpolation style has changed */
1261 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1263 if (line_points.size() > 1) {
1264 line->set_steps(line_points, is_stepped());
1269 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1270 AutomationList::iterator model, uint32_t npoints)
1272 ControlPoint::ShapeType shape;
1274 if (view_index >= control_points.size()) {
1276 /* make sure we have enough control points */
1278 ControlPoint* ncp = new ControlPoint (*this);
1279 ncp->set_size (control_point_box_size ());
1281 control_points.push_back (ncp);
1284 if (!terminal_points_can_slide) {
1286 control_points[view_index]->set_can_slide (false);
1288 shape = ControlPoint::Start;
1290 shape = ControlPoint::Full;
1292 } else if (pi == npoints - 1) {
1293 control_points[view_index]->set_can_slide (false);
1294 shape = ControlPoint::End;
1296 control_points[view_index]->set_can_slide (true);
1297 shape = ControlPoint::Full;
1300 control_points[view_index]->set_can_slide (true);
1301 shape = ControlPoint::Full;
1304 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1306 /* finally, control visibility */
1308 if (_visible & ControlPoints) {
1309 control_points[view_index]->show ();
1311 control_points[view_index]->hide ();
1316 AutomationLine::connect_to_list ()
1318 _list_connections.drop_connections ();
1320 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1322 alist->InterpolationChanged.connect (
1323 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1326 MementoCommandBinder<AutomationList>*
1327 AutomationLine::memento_command_binder ()
1329 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1332 /** Set the maximum time that points on this line can be at, relative
1333 * to the start of the track or region that it is on.
1336 AutomationLine::set_maximum_time (framecnt_t t)
1338 if (_maximum_time == t) {
1347 /** @return min and max x positions of points that are in the list, in session frames */
1348 pair<framepos_t, framepos_t>
1349 AutomationLine::get_point_x_range () const
1351 pair<framepos_t, framepos_t> r (max_framepos, 0);
1353 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1354 r.first = min (r.first, session_position (i));
1355 r.second = max (r.second, session_position (i));
1362 AutomationLine::session_position (AutomationList::const_iterator p) const
1364 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1368 AutomationLine::set_offset (framepos_t off)
1370 if (_offset == off) {