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.
22 /* isinf() & isnan() are C99 standards, which older MSVC doesn't provide */
23 #define isinf(val) !((bool)_finite((double)val))
24 #define isnan(val) (bool)_isnan((double)val)
32 #include "boost/shared_ptr.hpp"
34 #include "pbd/floating.h"
35 #include "pbd/memento_command.h"
36 #include "pbd/stl_delete.h"
37 #include "pbd/stacktrace.h"
39 #include "ardour/automation_list.h"
40 #include "ardour/dB.h"
41 #include "ardour/debug.h"
42 #include "ardour/tempo.h"
44 #include "evoral/Curve.hpp"
46 #include "canvas/debug.h"
48 #include "automation_line.h"
49 #include "control_point.h"
50 #include "gui_thread.h"
51 #include "rgb_macros.h"
52 #include "ardour_ui.h"
53 #include "public_editor.h"
54 #include "selection.h"
55 #include "time_axis_view.h"
56 #include "point_selection.h"
57 #include "automation_time_axis.h"
59 #include "ardour/event_type_map.h"
60 #include "ardour/session.h"
65 using namespace ARDOUR;
67 using namespace Editing;
69 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
70 * This will not be deleted by AutomationLine.
72 AutomationLine::AutomationLine (const string& name, TimeAxisView& tv, ArdourCanvas::Item& parent,
73 boost::shared_ptr<AutomationList> al,
74 Evoral::TimeConverter<double, framepos_t>* converter)
78 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
79 , _parent_group (parent)
81 , _maximum_time (max_framepos)
84 _our_time_converter = false;
86 _our_time_converter = true;
91 update_pending = false;
93 _uses_gain_mapping = false;
96 terminal_points_can_slide = true;
99 group = new ArdourCanvas::Container (&parent);
100 CANVAS_DEBUG_NAME (group, "region gain envelope group");
102 line = new ArdourCanvas::PolyLine (group);
103 CANVAS_DEBUG_NAME (line, "region gain envelope line");
104 line->set_data ("line", this);
105 line->set_outline_width (2.0);
106 line->set_covers_threshold (4.0);
108 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
110 trackview.session()->register_with_memento_command_factory(alist->id(), this);
112 if (alist->parameter().type() == GainAutomation ||
113 alist->parameter().type() == EnvelopeAutomation) {
114 set_uses_gain_mapping (true);
117 interpolation_changed (alist->interpolation ());
122 AutomationLine::~AutomationLine ()
124 vector_delete (&control_points);
127 if (_our_time_converter) {
128 delete _time_converter;
133 AutomationLine::event_handler (GdkEvent* event)
135 return PublicEditor::instance().canvas_line_event (event, line, this);
139 AutomationLine::update_visibility ()
141 if (_visible & Line) {
142 /* Only show the line there are some points, otherwise we may show an out-of-date line
143 when automation points have been removed (the line will still follow the shape of the
146 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
152 if (_visible & ControlPoints) {
153 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
156 } else if (_visible & SelectedControlPoints) {
157 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
158 if ((*i)->get_selected()) {
165 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
172 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
180 AutomationLine::hide ()
182 /* leave control points setting unchanged, we are just hiding the
186 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
190 AutomationLine::control_point_box_size ()
192 if (alist->interpolation() == AutomationList::Discrete) {
193 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
197 if (_height > TimeAxisView::preset_height (HeightLarger)) {
199 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
206 AutomationLine::set_height (guint32 h)
211 double bsz = control_point_box_size();
213 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
214 (*i)->set_size (bsz);
222 AutomationLine::set_line_color (uint32_t color)
225 line->set_outline_color (color);
229 AutomationLine::set_uses_gain_mapping (bool yn)
231 if (yn != _uses_gain_mapping) {
232 _uses_gain_mapping = yn;
238 AutomationLine::nth (uint32_t n)
240 if (n < control_points.size()) {
241 return control_points[n];
248 AutomationLine::nth (uint32_t n) const
250 if (n < control_points.size()) {
251 return control_points[n];
258 AutomationLine::modify_point_y (ControlPoint& cp, double y)
260 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
261 and needs to be converted to a canvas unit distance.
266 y = _height - (y * _height);
268 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
270 trackview.editor().session()->begin_reversible_command (_("automation event move"));
271 trackview.editor().session()->add_command (
272 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
274 cp.move_to (x, y, ControlPoint::Full);
276 reset_line_coords (cp);
278 if (line_points.size() > 1) {
279 line->set (line_points);
283 sync_model_with_view_point (cp);
286 update_pending = false;
288 trackview.editor().session()->add_command (
289 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
291 trackview.editor().session()->commit_reversible_command ();
292 trackview.editor().session()->set_dirty ();
296 AutomationLine::reset_line_coords (ControlPoint& cp)
298 if (cp.view_index() < line_points.size()) {
299 line_points[cp.view_index()].x = cp.get_x ();
300 line_points[cp.view_index()].y = cp.get_y ();
305 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
307 update_pending = true;
309 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
310 sync_model_with_view_point (**i);
315 AutomationLine::get_verbose_cursor_string (double fraction) const
317 std::string s = fraction_to_string (fraction);
318 if (_uses_gain_mapping) {
326 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
328 std::string s = fraction_to_string (fraction);
329 if (_uses_gain_mapping) {
333 std::string d = fraction_to_relative_string (original, fraction);
340 if (_uses_gain_mapping) {
351 * @param fraction y fraction
352 * @return string representation of this value, using dB if appropriate.
355 AutomationLine::fraction_to_string (double fraction) const
359 if (_uses_gain_mapping) {
360 if (fraction == 0.0) {
361 snprintf (buf, sizeof (buf), "-inf");
363 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
366 view_to_model_coord_y (fraction);
367 if (EventTypeMap::instance().is_integer (alist->parameter())) {
368 snprintf (buf, sizeof (buf), "%d", (int)fraction);
370 snprintf (buf, sizeof (buf), "%.2f", fraction);
378 * @param original an old y-axis fraction
379 * @param fraction the new y fraction
380 * @return string representation of the difference between original and fraction, using dB if appropriate.
383 AutomationLine::fraction_to_relative_string (double original, double fraction) const
387 if (original == fraction) {
391 if (_uses_gain_mapping) {
392 if (original == 0.0) {
393 /* there is no sensible representation of a relative
394 change from -inf dB, so return an empty string.
397 } else if (fraction == 0.0) {
398 snprintf (buf, sizeof (buf), "-inf");
400 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
401 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
402 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
405 view_to_model_coord_y (original);
406 view_to_model_coord_y (fraction);
407 if (EventTypeMap::instance().is_integer (alist->parameter())) {
408 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
410 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
418 * @param s Value string in the form as returned by fraction_to_string.
419 * @return Corresponding y fraction.
422 AutomationLine::string_to_fraction (string const & s) const
429 sscanf (s.c_str(), "%lf", &v);
431 if (_uses_gain_mapping) {
432 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
435 model_to_view_coord (dummy, v);
441 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
442 * are other selected points.
444 * @param cp Point to drag.
445 * @param x Initial x position (units).
446 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
449 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
451 trackview.editor().session()->begin_reversible_command (_("automation event move"));
452 trackview.editor().session()->add_command (
453 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
455 _drag_points.clear ();
456 _drag_points.push_back (cp);
458 if (cp->get_selected ()) {
459 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
460 if (*i != cp && (*i)->get_selected()) {
461 _drag_points.push_back (*i);
466 start_drag_common (x, fraction);
469 /** Start dragging a line vertically (with no change in x)
470 * @param i1 Control point index of the `left' point on the line.
471 * @param i2 Control point index of the `right' point on the line.
472 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
475 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
477 trackview.editor().session()->begin_reversible_command (_("automation range move"));
478 trackview.editor().session()->add_command (
479 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
481 _drag_points.clear ();
483 for (uint32_t i = i1; i <= i2; i++) {
484 _drag_points.push_back (nth (i));
487 start_drag_common (0, fraction);
490 /** Start dragging multiple points (with no change in x)
491 * @param cp Points to drag.
492 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
495 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
497 trackview.editor().session()->begin_reversible_command (_("automation range move"));
498 trackview.editor().session()->add_command (
499 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
502 start_drag_common (0, fraction);
505 struct ControlPointSorter
507 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
508 if (floateq (a->get_x(), b->get_x(), 1)) {
509 return a->view_index() < b->view_index();
511 return a->get_x() < b->get_x();
515 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
516 : line (al), before_x (0), after_x (DBL_MAX)
521 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
523 uint32_t sz = size();
525 if (sz > 0 && sz < line.npoints()) {
526 const TempoMap& map (e.session()->tempo_map());
528 /* determine the limits on x-axis motion for this
529 contiguous range of control points
532 if (front()->view_index() > 0) {
533 before_x = line.nth (front()->view_index() - 1)->get_x();
535 const framepos_t pos = e.pixel_to_sample(before_x);
536 const Meter& meter = map.meter_at (pos);
537 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
538 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
539 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
541 before_x += one_tick_in_pixels;
544 /* if our last point has a point after it in the line,
545 we have an "after" bound
548 if (back()->view_index() < (line.npoints() - 1)) {
549 after_x = line.nth (back()->view_index() + 1)->get_x();
551 const framepos_t pos = e.pixel_to_sample(after_x);
552 const Meter& meter = map.meter_at (pos);
553 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
554 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
555 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
557 after_x -= one_tick_in_pixels;
563 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
569 /* get the maximum distance we can move any of these points along the x-axis
572 double tx; /* possible position a point would move to, given dx */
576 /* check the last point, since we're moving later in time */
579 /* check the first point, since we're moving earlier in time */
583 tx = cp->get_x() + dx; // new possible position if we just add the motion
584 tx = max (tx, before_x); // can't move later than following point
585 tx = min (tx, after_x); // can't move earlier than preceeding point
586 return tx - cp->get_x ();
590 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
592 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
593 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
594 line.reset_line_coords (**i);
598 /** Common parts of starting a drag.
599 * @param x Starting x position in units, or 0 if x is being ignored.
600 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
603 AutomationLine::start_drag_common (double x, float fraction)
607 _last_drag_fraction = fraction;
608 _drag_had_movement = false;
611 /* they are probably ordered already, but we have to make sure */
613 _drag_points.sort (ControlPointSorter());
617 /** Should be called to indicate motion during a drag.
618 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
619 * @param fraction New y fraction.
620 * @return x position and y fraction that were actually used (once clamped).
623 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
625 if (_drag_points.empty()) {
626 return pair<double,float> (x,fraction);
629 double dx = ignore_x ? 0 : (x - _drag_x);
630 double dy = fraction - _last_drag_fraction;
632 if (!_drag_had_movement) {
634 /* "first move" ... do some stuff that we don't want to do if
635 no motion ever took place, but need to do before we handle
639 /* partition the points we are dragging into (potentially several)
640 * set(s) of contiguous points. this will not happen with a normal
641 * drag, but if the user does a discontiguous selection, it can.
644 uint32_t expected_view_index = 0;
647 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
648 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
649 contig.reset (new ContiguousControlPoints (*this));
650 contiguous_points.push_back (contig);
652 contig->push_back (*i);
653 expected_view_index = (*i)->view_index() + 1;
656 if (contiguous_points.back()->empty()) {
657 contiguous_points.pop_back ();
660 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
661 (*ccp)->compute_x_bounds (trackview.editor());
665 /* OK, now on to the stuff related to *this* motion event. First, for
666 * each contiguous range, figure out the maximum x-axis motion we are
667 * allowed (because of neighbouring points that are not moving.
669 * if we are moving forwards with push, we don't need to do this,
670 * since all later points will move too.
673 if (dx < 0 || ((dx > 0) && !with_push)) {
674 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
675 double dxt = (*ccp)->clamp_dx (dx);
676 if (fabs (dxt) < fabs (dx)) {
684 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
685 double const y = ((_height - (*i)->get_y()) / _height) + dy;
696 /* and now move each section */
698 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
699 (*ccp)->move (dx, dy);
702 final_index = contiguous_points.back()->back()->view_index () + 1;
704 uint32_t i = final_index;
705 while ((p = nth (i)) != 0 && p->can_slide()) {
706 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
707 reset_line_coords (*p);
712 /* update actual line coordinates (will queue a redraw)
715 if (line_points.size() > 1) {
716 line->set (line_points);
720 _drag_distance += dx;
722 _last_drag_fraction = fraction;
723 _drag_had_movement = true;
724 did_push = with_push;
726 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
729 /** Should be called to indicate the end of a drag */
731 AutomationLine::end_drag (bool with_push, uint32_t final_index)
733 if (!_drag_had_movement) {
738 sync_model_with_view_points (_drag_points);
742 uint32_t i = final_index;
743 while ((p = nth (i)) != 0 && p->can_slide()) {
744 sync_model_with_view_point (*p);
751 update_pending = false;
753 trackview.editor().session()->add_command (
754 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
756 trackview.editor().session()->set_dirty ();
759 contiguous_points.clear ();
763 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
765 /* find out where the visual control point is.
766 initial results are in canvas units. ask the
767 line to convert them to something relevant.
770 double view_x = cp.get_x();
771 double view_y = 1.0 - (cp.get_y() / _height);
773 /* if xval has not changed, set it directly from the model to avoid rounding errors */
775 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
776 view_x = (*cp.model())->when - _offset;
778 view_x = trackview.editor().pixel_to_sample (view_x);
779 view_x = _time_converter->from (view_x + _offset);
782 update_pending = true;
784 view_to_model_coord_y (view_y);
786 alist->modify (cp.model(), view_x, view_y);
790 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
792 ControlPoint *bcp = 0;
793 ControlPoint *acp = 0;
796 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
798 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
800 if ((*i)->get_x() <= unit_xval) {
802 if (!bcp || (*i)->get_x() > bcp->get_x()) {
804 before = bcp->view_index();
807 } else if ((*i)->get_x() > unit_xval) {
809 after = acp->view_index();
818 AutomationLine::is_last_point (ControlPoint& cp)
820 // If the list is not empty, and the point is the last point in the list
822 if (alist->empty()) {
826 AutomationList::const_iterator i = alist->end();
829 if (cp.model() == i) {
837 AutomationLine::is_first_point (ControlPoint& cp)
839 // If the list is not empty, and the point is the first point in the list
841 if (!alist->empty() && cp.model() == alist->begin()) {
848 // This is copied into AudioRegionGainLine
850 AutomationLine::remove_point (ControlPoint& cp)
852 trackview.editor().session()->begin_reversible_command (_("remove control point"));
853 XMLNode &before = alist->get_state();
855 alist->erase (cp.model());
857 trackview.editor().session()->add_command(
858 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
860 trackview.editor().session()->commit_reversible_command ();
861 trackview.editor().session()->set_dirty ();
864 /** Get selectable points within an area.
865 * @param start Start position in session frames.
866 * @param end End position in session frames.
867 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
868 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
869 * @param result Filled in with selectable things; in this case, ControlPoints.
872 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
874 /* convert fractions to display coordinates with 0 at the top of the track */
875 double const bot_track = (1 - topfrac) * trackview.current_height ();
876 double const top_track = (1 - botfrac) * trackview.current_height ();
878 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
879 double const model_when = (*(*i)->model())->when;
881 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
882 (as it is the session frame position of the start of the source)
885 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
887 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
888 results.push_back (*i);
894 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
900 AutomationLine::set_selected_points (PointSelection const & points)
902 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
903 (*i)->set_selected (false);
906 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
907 (*i)->set_selected (true);
913 void AutomationLine::set_colors ()
915 set_line_color (ARDOUR_UI::config()->get_AutomationLine());
916 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
922 AutomationLine::list_changed ()
924 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
926 if (!update_pending) {
927 update_pending = true;
928 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
933 AutomationLine::reset_callback (const Evoral::ControlList& events)
939 if (events.empty()) {
940 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
943 control_points.clear ();
948 /* hide all existing points, and the line */
950 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
957 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
959 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
961 double tx = (*ai)->when;
962 double ty = (*ai)->value;
964 /* convert from model coordinates to canonical view coordinates */
966 model_to_view_coord (tx, ty);
968 if (isnan (tx) || isnan (ty)) {
969 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
974 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
978 /* convert x-coordinate to a canvas unit coordinate (this takes
979 * zoom and scroll into account).
982 tx = trackview.editor().sample_to_pixel_unrounded (tx);
984 /* convert from canonical view height (0..1.0) to actual
985 * height coordinates (using X11's top-left rooted system)
988 ty = _height - (ty * _height);
990 add_visible_control_point (vp, pi, tx, ty, ai, np);
994 /* discard extra CP's to avoid confusing ourselves */
996 while (control_points.size() > vp) {
997 ControlPoint* cp = control_points.back();
998 control_points.pop_back ();
1002 if (!terminal_points_can_slide) {
1003 control_points.back()->set_can_slide(false);
1008 /* reset the line coordinates given to the CanvasLine */
1010 while (line_points.size() < vp) {
1011 line_points.push_back (ArdourCanvas::Duple (0,0));
1014 while (line_points.size() > vp) {
1015 line_points.pop_back ();
1018 for (uint32_t n = 0; n < vp; ++n) {
1019 line_points[n].x = control_points[n]->get_x();
1020 line_points[n].y = control_points[n]->get_y();
1023 line->set (line_points);
1025 update_visibility ();
1028 set_selected_points (trackview.editor().get_selection().points);
1032 AutomationLine::reset ()
1034 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1035 update_pending = false;
1036 have_timeout = false;
1042 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1046 AutomationLine::queue_reset ()
1048 /* this must be called from the GUI thread
1051 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1052 /* automation write pass ... defer to a timeout */
1053 /* redraw in 1/4 second */
1054 if (!have_timeout) {
1055 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1056 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1057 have_timeout = true;
1059 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1067 AutomationLine::clear ()
1069 /* parent must create and commit command */
1070 XMLNode &before = alist->get_state();
1073 trackview.editor().session()->add_command (
1074 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1078 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1083 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1091 AutomationLine::add_visibility (VisibleAspects va)
1093 VisibleAspects old = _visible;
1095 _visible = VisibleAspects (_visible | va);
1097 if (old != _visible) {
1098 update_visibility ();
1103 AutomationLine::set_visibility (VisibleAspects va)
1105 if (_visible != va) {
1107 update_visibility ();
1112 AutomationLine::remove_visibility (VisibleAspects va)
1114 VisibleAspects old = _visible;
1116 _visible = VisibleAspects (_visible & ~va);
1118 if (old != _visible) {
1119 update_visibility ();
1124 AutomationLine::track_entered()
1126 if (alist->interpolation() != AutomationList::Discrete) {
1127 add_visibility (ControlPoints);
1132 AutomationLine::track_exited()
1134 if (alist->interpolation() != AutomationList::Discrete) {
1135 remove_visibility (ControlPoints);
1140 AutomationLine::get_state (void)
1142 /* function as a proxy for the model */
1143 return alist->get_state();
1147 AutomationLine::set_state (const XMLNode &node, int version)
1149 /* function as a proxy for the model */
1150 return alist->set_state (node, version);
1154 AutomationLine::view_to_model_coord (double& x, double& y) const
1156 x = _time_converter->from (x);
1157 view_to_model_coord_y (y);
1161 AutomationLine::view_to_model_coord_y (double& y) const
1163 /* TODO: This should be more generic ... */
1164 if (alist->parameter().type() == GainAutomation ||
1165 alist->parameter().type() == EnvelopeAutomation) {
1166 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1169 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1170 alist->parameter().type() == PanElevationAutomation) {
1172 } else if (alist->parameter().type() == PanWidthAutomation) {
1174 } else if (alist->parameter().type() == PluginAutomation) {
1175 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1177 y = rint (y * alist->parameter().max());
1182 AutomationLine::model_to_view_coord (double& x, double& y) const
1184 /* TODO: This should be more generic ... */
1185 if (alist->parameter().type() == GainAutomation ||
1186 alist->parameter().type() == EnvelopeAutomation) {
1187 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1188 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1189 alist->parameter().type() == PanElevationAutomation) {
1191 } else if (alist->parameter().type() == PanWidthAutomation) {
1193 } else if (alist->parameter().type() == PluginAutomation) {
1194 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1196 y = y / (double)alist->parameter().max(); /* ... like this */
1199 x = _time_converter->to (x) - _offset;
1202 /** Called when our list has announced that its interpolation style has changed */
1204 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1206 if (style == AutomationList::Discrete) {
1207 set_visibility (ControlPoints);
1210 set_visibility (Line);
1215 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1216 AutomationList::iterator model, uint32_t npoints)
1218 ControlPoint::ShapeType shape;
1220 if (view_index >= control_points.size()) {
1222 /* make sure we have enough control points */
1224 ControlPoint* ncp = new ControlPoint (*this);
1225 ncp->set_size (control_point_box_size ());
1227 control_points.push_back (ncp);
1230 if (!terminal_points_can_slide) {
1232 control_points[view_index]->set_can_slide (false);
1234 shape = ControlPoint::Start;
1236 shape = ControlPoint::Full;
1238 } else if (pi == npoints - 1) {
1239 control_points[view_index]->set_can_slide (false);
1240 shape = ControlPoint::End;
1242 control_points[view_index]->set_can_slide (true);
1243 shape = ControlPoint::Full;
1246 control_points[view_index]->set_can_slide (true);
1247 shape = ControlPoint::Full;
1250 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1252 /* finally, control visibility */
1254 if (_visible & ControlPoints) {
1255 control_points[view_index]->show ();
1257 control_points[view_index]->hide ();
1262 AutomationLine::connect_to_list ()
1264 _list_connections.drop_connections ();
1266 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1268 alist->InterpolationChanged.connect (
1269 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1272 MementoCommandBinder<AutomationList>*
1273 AutomationLine::memento_command_binder ()
1275 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1278 /** Set the maximum time that points on this line can be at, relative
1279 * to the start of the track or region that it is on.
1282 AutomationLine::set_maximum_time (framecnt_t t)
1284 if (_maximum_time == t) {
1293 /** @return min and max x positions of points that are in the list, in session frames */
1294 pair<framepos_t, framepos_t>
1295 AutomationLine::get_point_x_range () const
1297 pair<framepos_t, framepos_t> r (max_framepos, 0);
1299 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1300 r.first = min (r.first, session_position (i));
1301 r.second = max (r.second, session_position (i));
1308 AutomationLine::session_position (AutomationList::const_iterator p) const
1310 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1314 AutomationLine::set_offset (framepos_t off)
1316 if (_offset == off) {