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() == 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 when there are some points, otherwise we may show an out-of-date line
160 when automation points have been removed (the line will still follow the shape of the
163 if (control_points.size() >= 2) {
169 if (_visible & ControlPoints) {
170 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
173 } else if (_visible & SelectedControlPoints) {
174 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
175 if ((*i)->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().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);
293 sync_model_with_view_point (cp);
296 reset_line_coords (cp);
298 if (line_points.size() > 1) {
299 line->set_steps (line_points, is_stepped());
302 update_pending = false;
304 trackview.editor().session()->add_command (
305 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
307 trackview.editor().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;
326 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
327 moved = sync_model_with_view_point (**i) || moved;
334 AutomationLine::get_verbose_cursor_string (double fraction) const
336 std::string s = fraction_to_string (fraction);
337 if (_uses_gain_mapping) {
345 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
347 std::string s = fraction_to_string (fraction);
348 if (_uses_gain_mapping) {
352 std::string d = fraction_to_relative_string (original, fraction);
359 if (_uses_gain_mapping) {
370 * @param fraction y fraction
371 * @return string representation of this value, using dB if appropriate.
374 AutomationLine::fraction_to_string (double fraction) const
376 if (_uses_gain_mapping) {
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, Config->get_max_gain())));
385 view_to_model_coord_y (fraction);
386 return ARDOUR::value_as_string (_desc, fraction);
389 return ""; /*NOTREACHED*/
393 * @param original an old y-axis fraction
394 * @param fraction the new y fraction
395 * @return string representation of the difference between original and fraction, using dB if appropriate.
398 AutomationLine::fraction_to_relative_string (double original, double fraction) const
402 if (original == fraction) {
406 if (_uses_gain_mapping) {
407 if (original == 0.0) {
408 /* there is no sensible representation of a relative
409 change from -inf dB, so return an empty string.
412 } else if (fraction == 0.0) {
413 snprintf (buf, sizeof (buf), "-inf");
415 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
416 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
417 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
420 view_to_model_coord_y (original);
421 view_to_model_coord_y (fraction);
422 return ARDOUR::value_as_string (_desc, fraction - original);
429 * @param s Value string in the form as returned by fraction_to_string.
430 * @return Corresponding y fraction.
433 AutomationLine::string_to_fraction (string const & s) const
440 sscanf (s.c_str(), "%lf", &v);
442 if (_uses_gain_mapping) {
443 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
446 model_to_view_coord (dummy, v);
452 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
453 * are other selected points.
455 * @param cp Point to drag.
456 * @param x Initial x position (units).
457 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
460 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
462 trackview.editor().begin_reversible_command (_("automation event move"));
463 trackview.editor().session()->add_command (
464 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
466 _drag_points.clear ();
467 _drag_points.push_back (cp);
469 if (cp->get_selected ()) {
470 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
471 if (*i != cp && (*i)->get_selected()) {
472 _drag_points.push_back (*i);
477 start_drag_common (x, fraction);
480 /** Start dragging a line vertically (with no change in x)
481 * @param i1 Control point index of the `left' point on the line.
482 * @param i2 Control point index of the `right' point on the line.
483 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
486 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
488 trackview.editor().begin_reversible_command (_("automation range move"));
489 trackview.editor().session()->add_command (
490 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
492 _drag_points.clear ();
494 for (uint32_t i = i1; i <= i2; i++) {
495 _drag_points.push_back (nth (i));
498 start_drag_common (0, fraction);
501 /** Start dragging multiple points (with no change in x)
502 * @param cp Points to drag.
503 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
506 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
508 trackview.editor().begin_reversible_command (_("automation range move"));
509 trackview.editor().session()->add_command (
510 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
513 start_drag_common (0, fraction);
516 struct ControlPointSorter
518 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
519 if (floateq (a->get_x(), b->get_x(), 1)) {
520 return a->view_index() < b->view_index();
522 return a->get_x() < b->get_x();
526 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
527 : line (al), before_x (0), after_x (DBL_MAX)
532 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
534 uint32_t sz = size();
536 if (sz > 0 && sz < line.npoints()) {
537 const TempoMap& map (e.session()->tempo_map());
539 /* determine the limits on x-axis motion for this
540 contiguous range of control points
543 if (front()->view_index() > 0) {
544 before_x = line.nth (front()->view_index() - 1)->get_x();
546 const framepos_t pos = e.pixel_to_sample(before_x);
547 const Meter& meter = map.meter_at (pos);
548 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
549 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
550 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
552 before_x += one_tick_in_pixels;
555 /* if our last point has a point after it in the line,
556 we have an "after" bound
559 if (back()->view_index() < (line.npoints() - 1)) {
560 after_x = line.nth (back()->view_index() + 1)->get_x();
562 const framepos_t pos = e.pixel_to_sample(after_x);
563 const Meter& meter = map.meter_at (pos);
564 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
565 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
566 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
568 after_x -= one_tick_in_pixels;
574 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
580 /* get the maximum distance we can move any of these points along the x-axis
583 double tx; /* possible position a point would move to, given dx */
587 /* check the last point, since we're moving later in time */
590 /* check the first point, since we're moving earlier in time */
594 tx = cp->get_x() + dx; // new possible position if we just add the motion
595 tx = max (tx, before_x); // can't move later than following point
596 tx = min (tx, after_x); // can't move earlier than preceeding point
597 return tx - cp->get_x ();
601 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
603 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
604 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
605 line.reset_line_coords (**i);
609 /** Common parts of starting a drag.
610 * @param x Starting x position in units, or 0 if x is being ignored.
611 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
614 AutomationLine::start_drag_common (double x, float fraction)
618 _last_drag_fraction = fraction;
619 _drag_had_movement = false;
622 /* they are probably ordered already, but we have to make sure */
624 _drag_points.sort (ControlPointSorter());
628 /** Should be called to indicate motion during a drag.
629 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
630 * @param fraction New y fraction.
631 * @return x position and y fraction that were actually used (once clamped).
634 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
636 if (_drag_points.empty()) {
637 return pair<double,float> (x,fraction);
640 double dx = ignore_x ? 0 : (x - _drag_x);
641 double dy = fraction - _last_drag_fraction;
643 if (!_drag_had_movement) {
645 /* "first move" ... do some stuff that we don't want to do if
646 no motion ever took place, but need to do before we handle
650 /* partition the points we are dragging into (potentially several)
651 * set(s) of contiguous points. this will not happen with a normal
652 * drag, but if the user does a discontiguous selection, it can.
655 uint32_t expected_view_index = 0;
658 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
659 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
660 contig.reset (new ContiguousControlPoints (*this));
661 contiguous_points.push_back (contig);
663 contig->push_back (*i);
664 expected_view_index = (*i)->view_index() + 1;
667 if (contiguous_points.back()->empty()) {
668 contiguous_points.pop_back ();
671 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
672 (*ccp)->compute_x_bounds (trackview.editor());
676 /* OK, now on to the stuff related to *this* motion event. First, for
677 * each contiguous range, figure out the maximum x-axis motion we are
678 * allowed (because of neighbouring points that are not moving.
680 * if we are moving forwards with push, we don't need to do this,
681 * since all later points will move too.
684 if (dx < 0 || ((dx > 0) && !with_push)) {
685 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
686 double dxt = (*ccp)->clamp_dx (dx);
687 if (fabs (dxt) < fabs (dx)) {
695 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
696 double const y = ((_height - (*i)->get_y()) / _height) + dy;
707 /* and now move each section */
709 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
710 (*ccp)->move (dx, dy);
713 final_index = contiguous_points.back()->back()->view_index () + 1;
715 uint32_t i = final_index;
716 while ((p = nth (i)) != 0 && p->can_slide()) {
717 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
718 reset_line_coords (*p);
723 /* update actual line coordinates (will queue a redraw)
726 if (line_points.size() > 1) {
727 line->set_steps (line_points, is_stepped());
731 _drag_distance += dx;
733 _last_drag_fraction = fraction;
734 _drag_had_movement = true;
735 did_push = with_push;
737 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
740 /** Should be called to indicate the end of a drag */
742 AutomationLine::end_drag (bool with_push, uint32_t final_index)
744 if (!_drag_had_movement) {
749 bool moved = sync_model_with_view_points (_drag_points);
753 uint32_t i = final_index;
754 while ((p = nth (i)) != 0 && p->can_slide()) {
755 moved = sync_model_with_view_point (*p) || moved;
762 update_pending = false;
765 /* A point has moved as a result of sync (clamped to integer or boolean
766 value), update line accordingly. */
767 line->set_steps (line_points, is_stepped());
770 trackview.editor().session()->add_command (
771 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
773 trackview.editor().session()->set_dirty ();
776 contiguous_points.clear ();
780 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
782 /* find out where the visual control point is.
783 initial results are in canvas units. ask the
784 line to convert them to something relevant.
787 double view_x = cp.get_x();
788 double view_y = 1.0 - (cp.get_y() / _height);
790 /* if xval has not changed, set it directly from the model to avoid rounding errors */
792 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
793 view_x = (*cp.model())->when - _offset;
795 view_x = trackview.editor().pixel_to_sample (view_x);
796 view_x = _time_converter->from (view_x + _offset);
799 update_pending = true;
801 view_to_model_coord_y (view_y);
803 alist->modify (cp.model(), view_x, view_y);
805 /* convert back from model to view y for clamping position (for integer/boolean/etc) */
806 model_to_view_coord_y (view_y);
807 const double point_y = _height - (view_y * _height);
808 if (point_y != cp.get_y()) {
809 cp.move_to (cp.get_x(), point_y, ControlPoint::Full);
810 reset_line_coords (cp);
818 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
820 ControlPoint *bcp = 0;
821 ControlPoint *acp = 0;
824 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
826 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
828 if ((*i)->get_x() <= unit_xval) {
830 if (!bcp || (*i)->get_x() > bcp->get_x()) {
832 before = bcp->view_index();
835 } else if ((*i)->get_x() > unit_xval) {
837 after = acp->view_index();
846 AutomationLine::is_last_point (ControlPoint& cp)
848 // If the list is not empty, and the point is the last point in the list
850 if (alist->empty()) {
854 AutomationList::const_iterator i = alist->end();
857 if (cp.model() == i) {
865 AutomationLine::is_first_point (ControlPoint& cp)
867 // If the list is not empty, and the point is the first point in the list
869 if (!alist->empty() && cp.model() == alist->begin()) {
876 // This is copied into AudioRegionGainLine
878 AutomationLine::remove_point (ControlPoint& cp)
880 trackview.editor().begin_reversible_command (_("remove control point"));
881 XMLNode &before = alist->get_state();
883 alist->erase (cp.model());
885 trackview.editor().session()->add_command(
886 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
888 trackview.editor().commit_reversible_command ();
889 trackview.editor().session()->set_dirty ();
892 /** Get selectable points within an area.
893 * @param start Start position in session frames.
894 * @param end End position in session frames.
895 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
896 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
897 * @param result Filled in with selectable things; in this case, ControlPoints.
900 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
902 /* convert fractions to display coordinates with 0 at the top of the track */
903 double const bot_track = (1 - topfrac) * trackview.current_height ();
904 double const top_track = (1 - botfrac) * trackview.current_height ();
906 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
907 double const model_when = (*(*i)->model())->when;
909 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
910 (as it is the session frame position of the start of the source)
913 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
915 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
916 results.push_back (*i);
922 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
928 AutomationLine::set_selected_points (PointSelection const & points)
930 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
931 (*i)->set_selected (false);
934 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
935 (*i)->set_selected (true);
938 if (points.empty()) {
939 remove_visibility (SelectedControlPoints);
941 add_visibility (SelectedControlPoints);
947 void AutomationLine::set_colors ()
949 set_line_color (ARDOUR_UI::config()->color ("automation line"));
950 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
956 AutomationLine::list_changed ()
958 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
960 if (!update_pending) {
961 update_pending = true;
962 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
967 AutomationLine::reset_callback (const Evoral::ControlList& events)
973 if (events.empty()) {
974 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
977 control_points.clear ();
982 /* hide all existing points, and the line */
984 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
991 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
993 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
995 double tx = (*ai)->when;
996 double ty = (*ai)->value;
998 /* convert from model coordinates to canonical view coordinates */
1000 model_to_view_coord (tx, ty);
1002 if (isnan_local (tx) || isnan_local (ty)) {
1003 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
1008 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
1012 /* convert x-coordinate to a canvas unit coordinate (this takes
1013 * zoom and scroll into account).
1016 tx = trackview.editor().sample_to_pixel_unrounded (tx);
1018 /* convert from canonical view height (0..1.0) to actual
1019 * height coordinates (using X11's top-left rooted system)
1022 ty = _height - (ty * _height);
1024 add_visible_control_point (vp, pi, tx, ty, ai, np);
1028 /* discard extra CP's to avoid confusing ourselves */
1030 while (control_points.size() > vp) {
1031 ControlPoint* cp = control_points.back();
1032 control_points.pop_back ();
1036 if (!terminal_points_can_slide) {
1037 control_points.back()->set_can_slide(false);
1042 /* reset the line coordinates given to the CanvasLine */
1044 while (line_points.size() < vp) {
1045 line_points.push_back (ArdourCanvas::Duple (0,0));
1048 while (line_points.size() > vp) {
1049 line_points.pop_back ();
1052 for (uint32_t n = 0; n < vp; ++n) {
1053 line_points[n].x = control_points[n]->get_x();
1054 line_points[n].y = control_points[n]->get_y();
1057 line->set_steps (line_points, is_stepped());
1059 update_visibility ();
1062 set_selected_points (trackview.editor().get_selection().points);
1066 AutomationLine::reset ()
1068 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1069 update_pending = false;
1070 have_timeout = false;
1076 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1080 AutomationLine::queue_reset ()
1082 /* this must be called from the GUI thread
1085 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1086 /* automation write pass ... defer to a timeout */
1087 /* redraw in 1/4 second */
1088 if (!have_timeout) {
1089 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1090 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1091 have_timeout = true;
1093 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1101 AutomationLine::clear ()
1103 /* parent must create and commit command */
1104 XMLNode &before = alist->get_state();
1107 trackview.editor().session()->add_command (
1108 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1112 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1120 AutomationLine::add_visibility (VisibleAspects va)
1122 VisibleAspects old = _visible;
1124 _visible = VisibleAspects (_visible | va);
1126 if (old != _visible) {
1127 update_visibility ();
1132 AutomationLine::set_visibility (VisibleAspects va)
1134 if (_visible != va) {
1136 update_visibility ();
1141 AutomationLine::remove_visibility (VisibleAspects va)
1143 VisibleAspects old = _visible;
1145 _visible = VisibleAspects (_visible & ~va);
1147 if (old != _visible) {
1148 update_visibility ();
1153 AutomationLine::track_entered()
1155 add_visibility (ControlPoints);
1159 AutomationLine::track_exited()
1161 remove_visibility (ControlPoints);
1165 AutomationLine::get_state (void)
1167 /* function as a proxy for the model */
1168 return alist->get_state();
1172 AutomationLine::set_state (const XMLNode &node, int version)
1174 /* function as a proxy for the model */
1175 return alist->set_state (node, version);
1179 AutomationLine::view_to_model_coord (double& x, double& y) const
1181 x = _time_converter->from (x);
1182 view_to_model_coord_y (y);
1186 AutomationLine::view_to_model_coord_y (double& y) const
1188 /* TODO: This should be more generic (use ParameterDescriptor) */
1189 if (alist->parameter().type() == GainAutomation ||
1190 alist->parameter().type() == EnvelopeAutomation) {
1191 y = slider_position_to_gain_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 * (double)(alist->get_max_y() - alist->get_min_y()) + alist->get_min_y();
1201 if (_desc.integer_step) {
1203 } else if (_desc.toggled) {
1204 y = (y > 0.5) ? 1.0 : 0.0;
1210 AutomationLine::model_to_view_coord_y (double& y) const
1212 /* TODO: This should be more generic (use ParameterDescriptor) */
1213 if (alist->parameter().type() == GainAutomation ||
1214 alist->parameter().type() == EnvelopeAutomation) {
1215 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1216 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1217 alist->parameter().type() == PanElevationAutomation) {
1219 } else if (alist->parameter().type() == PanWidthAutomation) {
1222 y = (y - alist->get_min_y()) / (double)(alist->get_max_y() - alist->get_min_y());
1227 AutomationLine::model_to_view_coord (double& x, double& y) const
1229 model_to_view_coord_y (y);
1230 x = _time_converter->to (x) - _offset;
1233 /** Called when our list has announced that its interpolation style has changed */
1235 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1237 if (line_points.size() > 1) {
1238 line->set_steps(line_points, is_stepped());
1243 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1244 AutomationList::iterator model, uint32_t npoints)
1246 ControlPoint::ShapeType shape;
1248 if (view_index >= control_points.size()) {
1250 /* make sure we have enough control points */
1252 ControlPoint* ncp = new ControlPoint (*this);
1253 ncp->set_size (control_point_box_size ());
1255 control_points.push_back (ncp);
1258 if (!terminal_points_can_slide) {
1260 control_points[view_index]->set_can_slide (false);
1262 shape = ControlPoint::Start;
1264 shape = ControlPoint::Full;
1266 } else if (pi == npoints - 1) {
1267 control_points[view_index]->set_can_slide (false);
1268 shape = ControlPoint::End;
1270 control_points[view_index]->set_can_slide (true);
1271 shape = ControlPoint::Full;
1274 control_points[view_index]->set_can_slide (true);
1275 shape = ControlPoint::Full;
1278 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1280 /* finally, control visibility */
1282 if (_visible & ControlPoints) {
1283 control_points[view_index]->show ();
1285 control_points[view_index]->hide ();
1290 AutomationLine::connect_to_list ()
1292 _list_connections.drop_connections ();
1294 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1296 alist->InterpolationChanged.connect (
1297 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1300 MementoCommandBinder<AutomationList>*
1301 AutomationLine::memento_command_binder ()
1303 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1306 /** Set the maximum time that points on this line can be at, relative
1307 * to the start of the track or region that it is on.
1310 AutomationLine::set_maximum_time (framecnt_t t)
1312 if (_maximum_time == t) {
1321 /** @return min and max x positions of points that are in the list, in session frames */
1322 pair<framepos_t, framepos_t>
1323 AutomationLine::get_point_x_range () const
1325 pair<framepos_t, framepos_t> r (max_framepos, 0);
1327 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1328 r.first = min (r.first, session_position (i));
1329 r.second = max (r.second, session_position (i));
1336 AutomationLine::session_position (AutomationList::const_iterator p) const
1338 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1342 AutomationLine::set_offset (framepos_t off)
1344 if (_offset == off) {