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);
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() == EnvelopeAutomation ||
123 desc.unit == ParameterDescriptor::DB) {
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 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)->get_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);
238 AutomationLine::set_line_color (uint32_t color)
241 line->set_outline_color (color);
245 AutomationLine::set_uses_gain_mapping (bool yn)
247 if (yn != _uses_gain_mapping) {
248 _uses_gain_mapping = yn;
254 AutomationLine::nth (uint32_t n)
256 if (n < control_points.size()) {
257 return control_points[n];
264 AutomationLine::nth (uint32_t n) const
266 if (n < control_points.size()) {
267 return control_points[n];
274 AutomationLine::modify_point_y (ControlPoint& cp, double y)
276 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
277 and needs to be converted to a canvas unit distance.
282 y = _height - (y * _height);
284 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
286 trackview.editor().session()->begin_reversible_command (_("automation event move"));
287 trackview.editor().session()->add_command (
288 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
290 cp.move_to (x, y, ControlPoint::Full);
292 reset_line_coords (cp);
294 if (line_points.size() > 1) {
295 line->set_steps (line_points, is_stepped());
299 sync_model_with_view_point (cp);
302 update_pending = false;
304 trackview.editor().session()->add_command (
305 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
307 trackview.editor().session()->commit_reversible_command ();
308 trackview.editor().session()->set_dirty ();
312 AutomationLine::reset_line_coords (ControlPoint& cp)
314 if (cp.view_index() < line_points.size()) {
315 line_points[cp.view_index()].x = cp.get_x ();
316 line_points[cp.view_index()].y = cp.get_y ();
321 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
323 update_pending = true;
325 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
326 sync_model_with_view_point (**i);
331 AutomationLine::get_verbose_cursor_string (double fraction) const
333 std::string s = fraction_to_string (fraction);
334 if (_uses_gain_mapping) {
342 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
344 std::string s = fraction_to_string (fraction);
345 if (_uses_gain_mapping) {
349 std::string d = fraction_to_relative_string (original, fraction);
356 if (_uses_gain_mapping) {
367 * @param fraction y fraction
368 * @return string representation of this value, using dB if appropriate.
371 AutomationLine::fraction_to_string (double fraction) const
373 if (_uses_gain_mapping) {
375 if (fraction == 0.0) {
376 snprintf (buf, sizeof (buf), "-inf");
378 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
382 view_to_model_coord_y (fraction);
383 return ARDOUR::value_as_string (_desc, fraction);
386 return ""; /*NOTREACHED*/
390 * @param original an old y-axis fraction
391 * @param fraction the new y fraction
392 * @return string representation of the difference between original and fraction, using dB if appropriate.
395 AutomationLine::fraction_to_relative_string (double original, double fraction) const
399 if (original == fraction) {
403 if (_uses_gain_mapping) {
404 if (original == 0.0) {
405 /* there is no sensible representation of a relative
406 change from -inf dB, so return an empty string.
409 } else if (fraction == 0.0) {
410 snprintf (buf, sizeof (buf), "-inf");
412 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
413 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
414 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
417 view_to_model_coord_y (original);
418 view_to_model_coord_y (fraction);
419 return ARDOUR::value_as_string (_desc, fraction - original);
426 * @param s Value string in the form as returned by fraction_to_string.
427 * @return Corresponding y fraction.
430 AutomationLine::string_to_fraction (string const & s) const
437 sscanf (s.c_str(), "%lf", &v);
439 if (_uses_gain_mapping) {
440 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
443 model_to_view_coord (dummy, v);
449 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
450 * are other selected points.
452 * @param cp Point to drag.
453 * @param x Initial x position (units).
454 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
457 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
459 trackview.editor().session()->begin_reversible_command (_("automation event move"));
460 trackview.editor().session()->add_command (
461 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
463 _drag_points.clear ();
464 _drag_points.push_back (cp);
466 if (cp->get_selected ()) {
467 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
468 if (*i != cp && (*i)->get_selected()) {
469 _drag_points.push_back (*i);
474 start_drag_common (x, fraction);
477 /** Start dragging a line vertically (with no change in x)
478 * @param i1 Control point index of the `left' point on the line.
479 * @param i2 Control point index of the `right' point on the line.
480 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
483 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
485 trackview.editor().session()->begin_reversible_command (_("automation range move"));
486 trackview.editor().session()->add_command (
487 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
489 _drag_points.clear ();
491 for (uint32_t i = i1; i <= i2; i++) {
492 _drag_points.push_back (nth (i));
495 start_drag_common (0, fraction);
498 /** Start dragging multiple points (with no change in x)
499 * @param cp Points to drag.
500 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
503 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
505 trackview.editor().session()->begin_reversible_command (_("automation range move"));
506 trackview.editor().session()->add_command (
507 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
510 start_drag_common (0, fraction);
513 struct ControlPointSorter
515 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
516 if (floateq (a->get_x(), b->get_x(), 1)) {
517 return a->view_index() < b->view_index();
519 return a->get_x() < b->get_x();
523 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
524 : line (al), before_x (0), after_x (DBL_MAX)
529 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
531 uint32_t sz = size();
533 if (sz > 0 && sz < line.npoints()) {
534 const TempoMap& map (e.session()->tempo_map());
536 /* determine the limits on x-axis motion for this
537 contiguous range of control points
540 if (front()->view_index() > 0) {
541 before_x = line.nth (front()->view_index() - 1)->get_x();
543 const framepos_t pos = e.pixel_to_sample(before_x);
544 const Meter& meter = map.meter_at (pos);
545 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
546 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
547 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
549 before_x += one_tick_in_pixels;
552 /* if our last point has a point after it in the line,
553 we have an "after" bound
556 if (back()->view_index() < (line.npoints() - 1)) {
557 after_x = line.nth (back()->view_index() + 1)->get_x();
559 const framepos_t pos = e.pixel_to_sample(after_x);
560 const Meter& meter = map.meter_at (pos);
561 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
562 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
563 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
565 after_x -= one_tick_in_pixels;
571 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
577 /* get the maximum distance we can move any of these points along the x-axis
580 double tx; /* possible position a point would move to, given dx */
584 /* check the last point, since we're moving later in time */
587 /* check the first point, since we're moving earlier in time */
591 tx = cp->get_x() + dx; // new possible position if we just add the motion
592 tx = max (tx, before_x); // can't move later than following point
593 tx = min (tx, after_x); // can't move earlier than preceeding point
594 return tx - cp->get_x ();
598 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
600 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
601 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
602 line.reset_line_coords (**i);
606 /** Common parts of starting a drag.
607 * @param x Starting x position in units, or 0 if x is being ignored.
608 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
611 AutomationLine::start_drag_common (double x, float fraction)
615 _last_drag_fraction = fraction;
616 _drag_had_movement = false;
619 /* they are probably ordered already, but we have to make sure */
621 _drag_points.sort (ControlPointSorter());
625 /** Should be called to indicate motion during a drag.
626 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
627 * @param fraction New y fraction.
628 * @return x position and y fraction that were actually used (once clamped).
631 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
633 if (_drag_points.empty()) {
634 return pair<double,float> (x,fraction);
637 double dx = ignore_x ? 0 : (x - _drag_x);
638 double dy = fraction - _last_drag_fraction;
640 if (!_drag_had_movement) {
642 /* "first move" ... do some stuff that we don't want to do if
643 no motion ever took place, but need to do before we handle
647 /* partition the points we are dragging into (potentially several)
648 * set(s) of contiguous points. this will not happen with a normal
649 * drag, but if the user does a discontiguous selection, it can.
652 uint32_t expected_view_index = 0;
655 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
656 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
657 contig.reset (new ContiguousControlPoints (*this));
658 contiguous_points.push_back (contig);
660 contig->push_back (*i);
661 expected_view_index = (*i)->view_index() + 1;
664 if (contiguous_points.back()->empty()) {
665 contiguous_points.pop_back ();
668 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
669 (*ccp)->compute_x_bounds (trackview.editor());
673 /* OK, now on to the stuff related to *this* motion event. First, for
674 * each contiguous range, figure out the maximum x-axis motion we are
675 * allowed (because of neighbouring points that are not moving.
677 * if we are moving forwards with push, we don't need to do this,
678 * since all later points will move too.
681 if (dx < 0 || ((dx > 0) && !with_push)) {
682 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
683 double dxt = (*ccp)->clamp_dx (dx);
684 if (fabs (dxt) < fabs (dx)) {
692 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
693 double const y = ((_height - (*i)->get_y()) / _height) + dy;
704 /* and now move each section */
706 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
707 (*ccp)->move (dx, dy);
710 final_index = contiguous_points.back()->back()->view_index () + 1;
712 uint32_t i = final_index;
713 while ((p = nth (i)) != 0 && p->can_slide()) {
714 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
715 reset_line_coords (*p);
720 /* update actual line coordinates (will queue a redraw)
723 if (line_points.size() > 1) {
724 line->set_steps (line_points, is_stepped());
728 _drag_distance += dx;
730 _last_drag_fraction = fraction;
731 _drag_had_movement = true;
732 did_push = with_push;
734 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
737 /** Should be called to indicate the end of a drag */
739 AutomationLine::end_drag (bool with_push, uint32_t final_index)
741 if (!_drag_had_movement) {
746 sync_model_with_view_points (_drag_points);
750 uint32_t i = final_index;
751 while ((p = nth (i)) != 0 && p->can_slide()) {
752 sync_model_with_view_point (*p);
759 update_pending = false;
761 trackview.editor().session()->add_command (
762 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
764 trackview.editor().session()->set_dirty ();
767 contiguous_points.clear ();
771 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
773 /* find out where the visual control point is.
774 initial results are in canvas units. ask the
775 line to convert them to something relevant.
778 double view_x = cp.get_x();
779 double view_y = 1.0 - (cp.get_y() / _height);
781 /* if xval has not changed, set it directly from the model to avoid rounding errors */
783 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
784 view_x = (*cp.model())->when - _offset;
786 view_x = trackview.editor().pixel_to_sample (view_x);
787 view_x = _time_converter->from (view_x + _offset);
790 update_pending = true;
792 view_to_model_coord_y (view_y);
794 alist->modify (cp.model(), view_x, view_y);
798 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
800 ControlPoint *bcp = 0;
801 ControlPoint *acp = 0;
804 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
806 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
808 if ((*i)->get_x() <= unit_xval) {
810 if (!bcp || (*i)->get_x() > bcp->get_x()) {
812 before = bcp->view_index();
815 } else if ((*i)->get_x() > unit_xval) {
817 after = acp->view_index();
826 AutomationLine::is_last_point (ControlPoint& cp)
828 // If the list is not empty, and the point is the last point in the list
830 if (alist->empty()) {
834 AutomationList::const_iterator i = alist->end();
837 if (cp.model() == i) {
845 AutomationLine::is_first_point (ControlPoint& cp)
847 // If the list is not empty, and the point is the first point in the list
849 if (!alist->empty() && cp.model() == alist->begin()) {
856 // This is copied into AudioRegionGainLine
858 AutomationLine::remove_point (ControlPoint& cp)
860 trackview.editor().session()->begin_reversible_command (_("remove control point"));
861 XMLNode &before = alist->get_state();
863 alist->erase (cp.model());
865 trackview.editor().session()->add_command(
866 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
868 trackview.editor().session()->commit_reversible_command ();
869 trackview.editor().session()->set_dirty ();
872 /** Get selectable points within an area.
873 * @param start Start position in session frames.
874 * @param end End position in session frames.
875 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
876 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
877 * @param result Filled in with selectable things; in this case, ControlPoints.
880 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
882 /* convert fractions to display coordinates with 0 at the top of the track */
883 double const bot_track = (1 - topfrac) * trackview.current_height ();
884 double const top_track = (1 - botfrac) * trackview.current_height ();
886 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
887 double const model_when = (*(*i)->model())->when;
889 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
890 (as it is the session frame position of the start of the source)
893 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
895 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
896 results.push_back (*i);
902 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
908 AutomationLine::set_selected_points (PointSelection const & points)
910 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
911 (*i)->set_selected (false);
914 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
915 (*i)->set_selected (true);
918 if (points.empty()) {
919 remove_visibility (SelectedControlPoints);
921 add_visibility (SelectedControlPoints);
927 void AutomationLine::set_colors ()
929 set_line_color (ARDOUR_UI::config()->color ("automation line"));
930 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
936 AutomationLine::list_changed ()
938 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
940 if (!update_pending) {
941 update_pending = true;
942 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
947 AutomationLine::reset_callback (const Evoral::ControlList& events)
953 if (events.empty()) {
954 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
957 control_points.clear ();
962 /* hide all existing points, and the line */
964 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
971 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
973 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
975 double tx = (*ai)->when;
976 double ty = (*ai)->value;
978 /* convert from model coordinates to canonical view coordinates */
980 model_to_view_coord (tx, ty);
982 if (isnan_local (tx) || isnan_local (ty)) {
983 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
988 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
992 /* convert x-coordinate to a canvas unit coordinate (this takes
993 * zoom and scroll into account).
996 tx = trackview.editor().sample_to_pixel_unrounded (tx);
998 /* convert from canonical view height (0..1.0) to actual
999 * height coordinates (using X11's top-left rooted system)
1002 ty = _height - (ty * _height);
1004 add_visible_control_point (vp, pi, tx, ty, ai, np);
1008 /* discard extra CP's to avoid confusing ourselves */
1010 while (control_points.size() > vp) {
1011 ControlPoint* cp = control_points.back();
1012 control_points.pop_back ();
1016 if (!terminal_points_can_slide) {
1017 control_points.back()->set_can_slide(false);
1022 /* reset the line coordinates given to the CanvasLine */
1024 while (line_points.size() < vp) {
1025 line_points.push_back (ArdourCanvas::Duple (0,0));
1028 while (line_points.size() > vp) {
1029 line_points.pop_back ();
1032 for (uint32_t n = 0; n < vp; ++n) {
1033 line_points[n].x = control_points[n]->get_x();
1034 line_points[n].y = control_points[n]->get_y();
1037 line->set_steps (line_points, is_stepped());
1039 update_visibility ();
1042 set_selected_points (trackview.editor().get_selection().points);
1046 AutomationLine::reset ()
1048 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1049 update_pending = false;
1050 have_timeout = false;
1056 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1060 AutomationLine::queue_reset ()
1062 /* this must be called from the GUI thread
1065 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1066 /* automation write pass ... defer to a timeout */
1067 /* redraw in 1/4 second */
1068 if (!have_timeout) {
1069 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1070 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1071 have_timeout = true;
1073 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1081 AutomationLine::clear ()
1083 /* parent must create and commit command */
1084 XMLNode &before = alist->get_state();
1087 trackview.editor().session()->add_command (
1088 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1092 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1100 AutomationLine::add_visibility (VisibleAspects va)
1102 VisibleAspects old = _visible;
1104 _visible = VisibleAspects (_visible | va);
1106 if (old != _visible) {
1107 update_visibility ();
1112 AutomationLine::set_visibility (VisibleAspects va)
1114 if (_visible != va) {
1116 update_visibility ();
1121 AutomationLine::remove_visibility (VisibleAspects va)
1123 VisibleAspects old = _visible;
1125 _visible = VisibleAspects (_visible & ~va);
1127 if (old != _visible) {
1128 update_visibility ();
1133 AutomationLine::track_entered()
1135 add_visibility (ControlPoints);
1139 AutomationLine::track_exited()
1141 remove_visibility (ControlPoints);
1145 AutomationLine::get_state (void)
1147 /* function as a proxy for the model */
1148 return alist->get_state();
1152 AutomationLine::set_state (const XMLNode &node, int version)
1154 /* function as a proxy for the model */
1155 return alist->set_state (node, version);
1159 AutomationLine::view_to_model_coord (double& x, double& y) const
1161 x = _time_converter->from (x);
1162 view_to_model_coord_y (y);
1166 AutomationLine::view_to_model_coord_y (double& y) const
1168 /* TODO: This should be more generic (use ParameterDescriptor) */
1169 if (alist->parameter().type() == GainAutomation ||
1170 alist->parameter().type() == EnvelopeAutomation) {
1171 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1174 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1175 alist->parameter().type() == PanElevationAutomation) {
1177 } else if (alist->parameter().type() == PanWidthAutomation) {
1180 y = y * (double)(alist->get_max_y() - alist->get_min_y()) + alist->get_min_y();
1181 if (_desc.toggled || _desc.integer_step) {
1188 AutomationLine::model_to_view_coord_y (double& y) const
1190 /* TODO: This should be more generic (use ParameterDescriptor) */
1191 if (alist->parameter().type() == GainAutomation ||
1192 alist->parameter().type() == EnvelopeAutomation) {
1193 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1194 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1195 alist->parameter().type() == PanElevationAutomation) {
1197 } else if (alist->parameter().type() == PanWidthAutomation) {
1200 y = (y - alist->get_min_y()) / (double)(alist->get_max_y() - alist->get_min_y());
1205 AutomationLine::model_to_view_coord (double& x, double& y) const
1207 model_to_view_coord_y (y);
1208 x = _time_converter->to (x) - _offset;
1211 /** Called when our list has announced that its interpolation style has changed */
1213 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1215 if (line_points.size() > 1) {
1216 line->set_steps(line_points, is_stepped());
1221 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1222 AutomationList::iterator model, uint32_t npoints)
1224 ControlPoint::ShapeType shape;
1226 if (view_index >= control_points.size()) {
1228 /* make sure we have enough control points */
1230 ControlPoint* ncp = new ControlPoint (*this);
1231 ncp->set_size (control_point_box_size ());
1233 control_points.push_back (ncp);
1236 if (!terminal_points_can_slide) {
1238 control_points[view_index]->set_can_slide (false);
1240 shape = ControlPoint::Start;
1242 shape = ControlPoint::Full;
1244 } else if (pi == npoints - 1) {
1245 control_points[view_index]->set_can_slide (false);
1246 shape = ControlPoint::End;
1248 control_points[view_index]->set_can_slide (true);
1249 shape = ControlPoint::Full;
1252 control_points[view_index]->set_can_slide (true);
1253 shape = ControlPoint::Full;
1256 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1258 /* finally, control visibility */
1260 if (_visible & ControlPoints) {
1261 control_points[view_index]->show ();
1263 control_points[view_index]->hide ();
1268 AutomationLine::connect_to_list ()
1270 _list_connections.drop_connections ();
1272 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1274 alist->InterpolationChanged.connect (
1275 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1278 MementoCommandBinder<AutomationList>*
1279 AutomationLine::memento_command_binder ()
1281 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1284 /** Set the maximum time that points on this line can be at, relative
1285 * to the start of the track or region that it is on.
1288 AutomationLine::set_maximum_time (framecnt_t t)
1290 if (_maximum_time == t) {
1299 /** @return min and max x positions of points that are in the list, in session frames */
1300 pair<framepos_t, framepos_t>
1301 AutomationLine::get_point_x_range () const
1303 pair<framepos_t, framepos_t> r (max_framepos, 0);
1305 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1306 r.first = min (r.first, session_position (i));
1307 r.second = max (r.second, session_position (i));
1314 AutomationLine::session_position (AutomationList::const_iterator p) const
1316 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1320 AutomationLine::set_offset (framepos_t off)
1322 if (_offset == off) {