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)
92 _our_time_converter = false;
94 _our_time_converter = true;
99 update_pending = false;
100 have_timeout = false;
101 _uses_gain_mapping = false;
104 terminal_points_can_slide = true;
107 group = new ArdourCanvas::Container (&parent, ArdourCanvas::Duple(0, 1.5));
108 CANVAS_DEBUG_NAME (group, "region gain envelope group");
110 line = new ArdourCanvas::PolyLine (group);
111 CANVAS_DEBUG_NAME (line, "region gain envelope line");
112 line->set_data ("line", this);
113 line->set_outline_width (2.0);
114 line->set_covers_threshold (4.0);
116 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
118 trackview.session()->register_with_memento_command_factory(alist->id(), this);
120 if (alist->parameter().type() == GainAutomation ||
121 alist->parameter().type() == TrimAutomation ||
122 alist->parameter().type() == EnvelopeAutomation) {
123 set_uses_gain_mapping (true);
126 interpolation_changed (alist->interpolation ());
131 AutomationLine::~AutomationLine ()
133 vector_delete (&control_points);
136 if (_our_time_converter) {
137 delete _time_converter;
142 AutomationLine::event_handler (GdkEvent* event)
144 return PublicEditor::instance().canvas_line_event (event, line, this);
148 AutomationLine::is_stepped() const
150 return (_desc.toggled ||
151 (alist && alist->interpolation() == AutomationList::Discrete));
155 AutomationLine::update_visibility ()
157 if (_visible & Line) {
158 /* Only show the line when there are some points, otherwise we may show an out-of-date line
159 when automation points have been removed (the line will still follow the shape of the
162 if (control_points.size() >= 2) {
168 if (_visible & ControlPoints) {
169 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
172 } else if (_visible & SelectedControlPoints) {
173 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
174 if ((*i)->get_selected()) {
181 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
188 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
189 if (_visible & ControlPoints) {
200 AutomationLine::hide ()
202 /* leave control points setting unchanged, we are just hiding the
206 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
210 AutomationLine::control_point_box_size ()
212 if (_height > TimeAxisView::preset_height (HeightLarger)) {
214 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
221 AutomationLine::set_height (guint32 h)
226 double bsz = control_point_box_size();
228 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
229 (*i)->set_size (bsz);
237 AutomationLine::set_line_color (uint32_t color)
240 line->set_outline_color (color);
244 AutomationLine::set_uses_gain_mapping (bool yn)
246 if (yn != _uses_gain_mapping) {
247 _uses_gain_mapping = yn;
253 AutomationLine::nth (uint32_t n)
255 if (n < control_points.size()) {
256 return control_points[n];
263 AutomationLine::nth (uint32_t n) const
265 if (n < control_points.size()) {
266 return control_points[n];
273 AutomationLine::modify_point_y (ControlPoint& cp, double y)
275 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
276 and needs to be converted to a canvas unit distance.
281 y = _height - (y * _height);
283 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
285 trackview.editor().begin_reversible_command (_("automation event move"));
286 trackview.editor().session()->add_command (
287 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
289 cp.move_to (x, y, ControlPoint::Full);
292 sync_model_with_view_point (cp);
295 reset_line_coords (cp);
297 if (line_points.size() > 1) {
298 line->set_steps (line_points, is_stepped());
301 update_pending = false;
303 trackview.editor().session()->add_command (
304 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
306 trackview.editor().commit_reversible_command ();
307 trackview.editor().session()->set_dirty ();
311 AutomationLine::reset_line_coords (ControlPoint& cp)
313 if (cp.view_index() < line_points.size()) {
314 line_points[cp.view_index()].x = cp.get_x ();
315 line_points[cp.view_index()].y = cp.get_y ();
320 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
322 update_pending = true;
325 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
326 moved = sync_model_with_view_point (**i) || moved;
333 AutomationLine::get_verbose_cursor_string (double fraction) const
335 std::string s = fraction_to_string (fraction);
336 if (_uses_gain_mapping) {
344 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
346 std::string s = fraction_to_string (fraction);
347 if (_uses_gain_mapping) {
351 std::string d = fraction_to_relative_string (original, fraction);
358 if (_uses_gain_mapping) {
369 * @param fraction y fraction
370 * @return string representation of this value, using dB if appropriate.
373 AutomationLine::fraction_to_string (double fraction) const
375 if (_uses_gain_mapping) {
377 if (_desc.type == GainAutomation || _desc.type == EnvelopeAutomation || _desc.lower == 0) {
378 if (fraction == 0.0) {
379 snprintf (buf, sizeof (buf), "-inf");
381 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, _desc.upper)));
384 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
385 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
386 snprintf (buf, sizeof (buf), "%.1f", lower_db + fraction * range_db);
390 view_to_model_coord_y (fraction);
391 return ARDOUR::value_as_string (_desc, fraction);
394 return ""; /*NOTREACHED*/
398 * @param original an old y-axis fraction
399 * @param fraction the new y fraction
400 * @return string representation of the difference between original and fraction, using dB if appropriate.
403 AutomationLine::fraction_to_relative_string (double original, double fraction) const
407 if (original == fraction) {
411 if (_uses_gain_mapping) {
412 if (original == 0.0) {
413 /* there is no sensible representation of a relative
414 change from -inf dB, so return an empty string.
417 } else if (fraction == 0.0) {
418 snprintf (buf, sizeof (buf), "-inf");
420 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
421 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
422 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
425 view_to_model_coord_y (original);
426 view_to_model_coord_y (fraction);
427 return ARDOUR::value_as_string (_desc, fraction - original);
434 * @param s Value string in the form as returned by fraction_to_string.
435 * @return Corresponding y fraction.
438 AutomationLine::string_to_fraction (string const & s) const
445 sscanf (s.c_str(), "%lf", &v);
447 if (_uses_gain_mapping) {
448 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
451 model_to_view_coord (dummy, v);
457 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
458 * are other selected points.
460 * @param cp Point to drag.
461 * @param x Initial x position (units).
462 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
465 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
467 trackview.editor().session()->add_command (
468 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
470 _drag_points.clear ();
471 _drag_points.push_back (cp);
473 if (cp->get_selected ()) {
474 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
475 if (*i != cp && (*i)->get_selected()) {
476 _drag_points.push_back (*i);
481 start_drag_common (x, fraction);
484 /** Start dragging a line vertically (with no change in x)
485 * @param i1 Control point index of the `left' point on the line.
486 * @param i2 Control point index of the `right' point on the line.
487 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
490 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
492 trackview.editor().session()->add_command (
493 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
495 _drag_points.clear ();
497 for (uint32_t i = i1; i <= i2; i++) {
498 _drag_points.push_back (nth (i));
501 start_drag_common (0, fraction);
504 /** Start dragging multiple points (with no change in x)
505 * @param cp Points to drag.
506 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
509 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
511 trackview.editor().session()->add_command (
512 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
515 start_drag_common (0, fraction);
518 struct ControlPointSorter
520 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
521 if (floateq (a->get_x(), b->get_x(), 1)) {
522 return a->view_index() < b->view_index();
524 return a->get_x() < b->get_x();
528 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
529 : line (al), before_x (0), after_x (DBL_MAX)
534 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
536 uint32_t sz = size();
538 if (sz > 0 && sz < line.npoints()) {
539 const TempoMap& map (e.session()->tempo_map());
541 /* determine the limits on x-axis motion for this
542 contiguous range of control points
545 if (front()->view_index() > 0) {
546 before_x = line.nth (front()->view_index() - 1)->get_x();
548 const framepos_t pos = e.pixel_to_sample(before_x);
549 const Meter& meter = map.meter_at (pos);
550 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
551 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
552 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
554 before_x += one_tick_in_pixels;
557 /* if our last point has a point after it in the line,
558 we have an "after" bound
561 if (back()->view_index() < (line.npoints() - 1)) {
562 after_x = line.nth (back()->view_index() + 1)->get_x();
564 const framepos_t pos = e.pixel_to_sample(after_x);
565 const Meter& meter = map.meter_at (pos);
566 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
567 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
568 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
570 after_x -= one_tick_in_pixels;
576 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
582 /* get the maximum distance we can move any of these points along the x-axis
585 double tx; /* possible position a point would move to, given dx */
589 /* check the last point, since we're moving later in time */
592 /* check the first point, since we're moving earlier in time */
596 tx = cp->get_x() + dx; // new possible position if we just add the motion
597 tx = max (tx, before_x); // can't move later than following point
598 tx = min (tx, after_x); // can't move earlier than preceeding point
599 return tx - cp->get_x ();
603 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
605 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
606 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
607 line.reset_line_coords (**i);
611 /** Common parts of starting a drag.
612 * @param x Starting x position in units, or 0 if x is being ignored.
613 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
616 AutomationLine::start_drag_common (double x, float fraction)
620 _last_drag_fraction = fraction;
621 _drag_had_movement = false;
624 /* they are probably ordered already, but we have to make sure */
626 _drag_points.sort (ControlPointSorter());
630 /** Should be called to indicate motion during a drag.
631 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
632 * @param fraction New y fraction.
633 * @return x position and y fraction that were actually used (once clamped).
636 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
638 if (_drag_points.empty()) {
639 return pair<double,float> (x,fraction);
642 double dx = ignore_x ? 0 : (x - _drag_x);
643 double dy = fraction - _last_drag_fraction;
645 if (!_drag_had_movement) {
647 /* "first move" ... do some stuff that we don't want to do if
648 no motion ever took place, but need to do before we handle
652 /* partition the points we are dragging into (potentially several)
653 * set(s) of contiguous points. this will not happen with a normal
654 * drag, but if the user does a discontiguous selection, it can.
657 uint32_t expected_view_index = 0;
660 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
661 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
662 contig.reset (new ContiguousControlPoints (*this));
663 contiguous_points.push_back (contig);
665 contig->push_back (*i);
666 expected_view_index = (*i)->view_index() + 1;
669 if (contiguous_points.back()->empty()) {
670 contiguous_points.pop_back ();
673 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
674 (*ccp)->compute_x_bounds (trackview.editor());
676 _drag_had_movement = true;
679 /* OK, now on to the stuff related to *this* motion event. First, for
680 * each contiguous range, figure out the maximum x-axis motion we are
681 * allowed (because of neighbouring points that are not moving.
683 * if we are moving forwards with push, we don't need to do this,
684 * since all later points will move too.
687 if (dx < 0 || ((dx > 0) && !with_push)) {
688 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
689 double dxt = (*ccp)->clamp_dx (dx);
690 if (fabs (dxt) < fabs (dx)) {
697 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
698 double const y = ((_height - (*i)->get_y()) / _height) + dy;
709 /* and now move each section */
711 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
712 (*ccp)->move (dx, dy);
715 final_index = contiguous_points.back()->back()->view_index () + 1;
717 uint32_t i = final_index;
718 while ((p = nth (i)) != 0 && p->can_slide()) {
719 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
720 reset_line_coords (*p);
725 /* update actual line coordinates (will queue a redraw)
728 if (line_points.size() > 1) {
729 line->set_steps (line_points, is_stepped());
732 double const result_frac = _last_drag_fraction + dy;
733 _drag_distance += dx;
735 _last_drag_fraction = result_frac;
736 did_push = with_push;
738 return pair<double, float> (_drag_x + dx, result_frac);
741 /** Should be called to indicate the end of a drag */
743 AutomationLine::end_drag (bool with_push, uint32_t final_index)
745 if (!_drag_had_movement) {
750 bool moved = sync_model_with_view_points (_drag_points);
754 uint32_t i = final_index;
755 while ((p = nth (i)) != 0 && p->can_slide()) {
756 moved = sync_model_with_view_point (*p) || moved;
763 update_pending = false;
766 /* A point has moved as a result of sync (clamped to integer or boolean
767 value), update line accordingly. */
768 line->set_steps (line_points, is_stepped());
771 trackview.editor().session()->add_command (
772 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
774 trackview.editor().session()->set_dirty ();
777 contiguous_points.clear ();
781 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
783 /* find out where the visual control point is.
784 initial results are in canvas units. ask the
785 line to convert them to something relevant.
788 double view_x = cp.get_x();
789 double view_y = 1.0 - (cp.get_y() / _height);
791 /* if xval has not changed, set it directly from the model to avoid rounding errors */
793 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
794 view_x = (*cp.model())->when - _offset;
796 view_x = trackview.editor().pixel_to_sample (view_x);
797 view_x = _time_converter->from (view_x + _offset);
800 update_pending = true;
802 view_to_model_coord_y (view_y);
804 alist->modify (cp.model(), view_x, view_y);
806 /* convert back from model to view y for clamping position (for integer/boolean/etc) */
807 model_to_view_coord_y (view_y);
808 const double point_y = _height - (view_y * _height);
809 if (point_y != cp.get_y()) {
810 cp.move_to (cp.get_x(), point_y, ControlPoint::Full);
811 reset_line_coords (cp);
819 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
821 ControlPoint *bcp = 0;
822 ControlPoint *acp = 0;
825 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
827 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
829 if ((*i)->get_x() <= unit_xval) {
831 if (!bcp || (*i)->get_x() > bcp->get_x()) {
833 before = bcp->view_index();
836 } else if ((*i)->get_x() > unit_xval) {
838 after = acp->view_index();
847 AutomationLine::is_last_point (ControlPoint& cp)
849 // If the list is not empty, and the point is the last point in the list
851 if (alist->empty()) {
855 AutomationList::const_iterator i = alist->end();
858 if (cp.model() == i) {
866 AutomationLine::is_first_point (ControlPoint& cp)
868 // If the list is not empty, and the point is the first point in the list
870 if (!alist->empty() && cp.model() == alist->begin()) {
877 // This is copied into AudioRegionGainLine
879 AutomationLine::remove_point (ControlPoint& cp)
881 trackview.editor().begin_reversible_command (_("remove control point"));
882 XMLNode &before = alist->get_state();
884 trackview.editor ().get_selection ().clear_points ();
885 alist->erase (cp.model());
887 trackview.editor().session()->add_command(
888 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
890 trackview.editor().commit_reversible_command ();
891 trackview.editor().session()->set_dirty ();
894 /** Get selectable points within an area.
895 * @param start Start position in session frames.
896 * @param end End position in session frames.
897 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
898 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
899 * @param result Filled in with selectable things; in this case, ControlPoints.
902 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
904 /* convert fractions to display coordinates with 0 at the top of the track */
905 double const bot_track = (1 - topfrac) * trackview.current_height ();
906 double const top_track = (1 - botfrac) * trackview.current_height ();
908 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
909 double const model_when = (*(*i)->model())->when;
911 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
912 (as it is the session frame position of the start of the source)
915 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
917 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
918 results.push_back (*i);
924 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
930 AutomationLine::set_selected_points (PointSelection const & points)
932 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
933 (*i)->set_selected (false);
936 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
937 (*i)->set_selected (true);
940 if (points.empty()) {
941 remove_visibility (SelectedControlPoints);
943 add_visibility (SelectedControlPoints);
950 AutomationLine::set_colors ()
952 set_line_color (UIConfiguration::instance().color ("automation line"));
953 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
959 AutomationLine::list_changed ()
961 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
963 if (!update_pending) {
964 update_pending = true;
965 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
970 AutomationLine::reset_callback (const Evoral::ControlList& events)
976 if (events.empty()) {
977 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
980 control_points.clear ();
985 /* hide all existing points, and the line */
987 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
994 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
996 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
998 double tx = (*ai)->when;
999 double ty = (*ai)->value;
1001 /* convert from model coordinates to canonical view coordinates */
1003 model_to_view_coord (tx, ty);
1005 if (isnan_local (tx) || isnan_local (ty)) {
1006 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
1011 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
1015 /* convert x-coordinate to a canvas unit coordinate (this takes
1016 * zoom and scroll into account).
1019 tx = trackview.editor().sample_to_pixel_unrounded (tx);
1021 /* convert from canonical view height (0..1.0) to actual
1022 * height coordinates (using X11's top-left rooted system)
1025 ty = _height - (ty * _height);
1027 add_visible_control_point (vp, pi, tx, ty, ai, np);
1031 /* discard extra CP's to avoid confusing ourselves */
1033 while (control_points.size() > vp) {
1034 ControlPoint* cp = control_points.back();
1035 control_points.pop_back ();
1039 if (!terminal_points_can_slide) {
1040 control_points.back()->set_can_slide(false);
1045 /* reset the line coordinates given to the CanvasLine */
1047 while (line_points.size() < vp) {
1048 line_points.push_back (ArdourCanvas::Duple (0,0));
1051 while (line_points.size() > vp) {
1052 line_points.pop_back ();
1055 for (uint32_t n = 0; n < vp; ++n) {
1056 line_points[n].x = control_points[n]->get_x();
1057 line_points[n].y = control_points[n]->get_y();
1060 line->set_steps (line_points, is_stepped());
1062 update_visibility ();
1065 set_selected_points (trackview.editor().get_selection().points);
1069 AutomationLine::reset ()
1071 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1072 update_pending = false;
1073 have_timeout = false;
1079 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1083 AutomationLine::queue_reset ()
1085 /* this must be called from the GUI thread
1088 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1089 /* automation write pass ... defer to a timeout */
1090 /* redraw in 1/4 second */
1091 if (!have_timeout) {
1092 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1093 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1094 have_timeout = true;
1096 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1104 AutomationLine::clear ()
1106 /* parent must create and commit command */
1107 XMLNode &before = alist->get_state();
1110 trackview.editor().session()->add_command (
1111 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1115 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1123 AutomationLine::add_visibility (VisibleAspects va)
1125 VisibleAspects old = _visible;
1127 _visible = VisibleAspects (_visible | va);
1129 if (old != _visible) {
1130 update_visibility ();
1135 AutomationLine::set_visibility (VisibleAspects va)
1137 if (_visible != va) {
1139 update_visibility ();
1144 AutomationLine::remove_visibility (VisibleAspects va)
1146 VisibleAspects old = _visible;
1148 _visible = VisibleAspects (_visible & ~va);
1150 if (old != _visible) {
1151 update_visibility ();
1156 AutomationLine::track_entered()
1158 add_visibility (ControlPoints);
1162 AutomationLine::track_exited()
1164 remove_visibility (ControlPoints);
1168 AutomationLine::get_state (void)
1170 /* function as a proxy for the model */
1171 return alist->get_state();
1175 AutomationLine::set_state (const XMLNode &node, int version)
1177 /* function as a proxy for the model */
1178 return alist->set_state (node, version);
1182 AutomationLine::view_to_model_coord (double& x, double& y) const
1184 x = _time_converter->from (x);
1185 view_to_model_coord_y (y);
1189 AutomationLine::view_to_model_coord_y (double& y) const
1191 /* TODO: This should be more generic (use ParameterDescriptor)
1192 * or better yet: Controllable -> set_interface();
1194 if ( alist->parameter().type() == GainAutomation
1195 || alist->parameter().type() == EnvelopeAutomation
1196 || (_desc.logarithmic && _desc.lower == 0. && _desc.upper > _desc.lower)) {
1197 y = slider_position_to_gain_with_max (y, _desc.upper);
1198 y = max ((double)_desc.lower, y);
1199 y = min ((double)_desc.upper, y);
1200 } else if (alist->parameter().type() == TrimAutomation
1201 || (_desc.logarithmic && _desc.lower * _desc.upper > 0 && _desc.upper > _desc.lower)) {
1202 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1203 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1206 y = dB_to_coefficient (lower_db + y * range_db);
1207 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1208 alist->parameter().type() == PanElevationAutomation) {
1210 } else if (alist->parameter().type() == PanWidthAutomation) {
1213 y = y * (double)(alist->get_max_y() - alist->get_min_y()) + alist->get_min_y();
1214 if (_desc.integer_step) {
1216 } else if (_desc.toggled) {
1217 y = (y > 0.5) ? 1.0 : 0.0;
1223 AutomationLine::model_to_view_coord_y (double& y) const
1225 /* TODO: This should be more generic (use ParameterDescriptor) */
1226 if ( alist->parameter().type() == GainAutomation
1227 || alist->parameter().type() == EnvelopeAutomation
1228 || (_desc.logarithmic && _desc.lower == 0. && _desc.upper > _desc.lower)) {
1229 y = gain_to_slider_position_with_max (y, _desc.upper);
1230 } else if (alist->parameter().type() == TrimAutomation
1231 || (_desc.logarithmic && _desc.lower * _desc.upper > 0 && _desc.upper > _desc.lower)) {
1232 const double lower_db = accurate_coefficient_to_dB (_desc.lower);
1233 const double range_db = accurate_coefficient_to_dB (_desc.upper) - lower_db;
1234 y = (accurate_coefficient_to_dB (y) - lower_db) / range_db;
1235 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1236 alist->parameter().type() == PanElevationAutomation) {
1238 } else if (alist->parameter().type() == PanWidthAutomation) {
1241 y = (y - alist->get_min_y()) / (double)(alist->get_max_y() - alist->get_min_y());
1246 AutomationLine::model_to_view_coord (double& x, double& y) const
1248 model_to_view_coord_y (y);
1249 x = _time_converter->to (x) - _offset;
1252 /** Called when our list has announced that its interpolation style has changed */
1254 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1256 if (line_points.size() > 1) {
1257 line->set_steps(line_points, is_stepped());
1262 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1263 AutomationList::iterator model, uint32_t npoints)
1265 ControlPoint::ShapeType shape;
1267 if (view_index >= control_points.size()) {
1269 /* make sure we have enough control points */
1271 ControlPoint* ncp = new ControlPoint (*this);
1272 ncp->set_size (control_point_box_size ());
1274 control_points.push_back (ncp);
1277 if (!terminal_points_can_slide) {
1279 control_points[view_index]->set_can_slide (false);
1281 shape = ControlPoint::Start;
1283 shape = ControlPoint::Full;
1285 } else if (pi == npoints - 1) {
1286 control_points[view_index]->set_can_slide (false);
1287 shape = ControlPoint::End;
1289 control_points[view_index]->set_can_slide (true);
1290 shape = ControlPoint::Full;
1293 control_points[view_index]->set_can_slide (true);
1294 shape = ControlPoint::Full;
1297 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1299 /* finally, control visibility */
1301 if (_visible & ControlPoints) {
1302 control_points[view_index]->show ();
1304 control_points[view_index]->hide ();
1309 AutomationLine::connect_to_list ()
1311 _list_connections.drop_connections ();
1313 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1315 alist->InterpolationChanged.connect (
1316 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1319 MementoCommandBinder<AutomationList>*
1320 AutomationLine::memento_command_binder ()
1322 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1325 /** Set the maximum time that points on this line can be at, relative
1326 * to the start of the track or region that it is on.
1329 AutomationLine::set_maximum_time (framecnt_t t)
1331 if (_maximum_time == t) {
1340 /** @return min and max x positions of points that are in the list, in session frames */
1341 pair<framepos_t, framepos_t>
1342 AutomationLine::get_point_x_range () const
1344 pair<framepos_t, framepos_t> r (max_framepos, 0);
1346 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1347 r.first = min (r.first, session_position (i));
1348 r.second = max (r.second, session_position (i));
1355 AutomationLine::session_position (AutomationList::const_iterator p) const
1357 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1361 AutomationLine::set_offset (framepos_t off)
1363 if (_offset == off) {