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"
55 #include "selection.h"
56 #include "time_axis_view.h"
57 #include "point_selection.h"
58 #include "automation_time_axis.h"
60 #include "ardour/event_type_map.h"
61 #include "ardour/session.h"
66 using namespace ARDOUR;
68 using namespace Editing;
70 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
71 * This will not be deleted by AutomationLine.
73 AutomationLine::AutomationLine (const string& name, TimeAxisView& tv, ArdourCanvas::Group& parent,
74 boost::shared_ptr<AutomationList> al,
75 Evoral::TimeConverter<double, framepos_t>* converter)
79 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
80 , _parent_group (parent)
82 , _maximum_time (max_framepos)
85 _time_converter = converter;
86 _our_time_converter = false;
88 _time_converter = new Evoral::IdentityConverter<double, framepos_t>;
89 _our_time_converter = true;
94 update_pending = false;
96 _uses_gain_mapping = false;
99 terminal_points_can_slide = true;
102 group = new ArdourCanvas::Group (&parent);
103 CANVAS_DEBUG_NAME (group, "region gain envelope group");
105 line = new ArdourCanvas::PolyLine (group);
106 CANVAS_DEBUG_NAME (line, "region gain envelope line");
107 line->set_data ("line", this);
108 line->set_outline_width (2.0);
109 line->set_covers_threshold (4.0);
111 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
113 trackview.session()->register_with_memento_command_factory(alist->id(), this);
115 if (alist->parameter().type() == GainAutomation ||
116 alist->parameter().type() == EnvelopeAutomation) {
117 set_uses_gain_mapping (true);
120 interpolation_changed (alist->interpolation ());
125 AutomationLine::~AutomationLine ()
127 vector_delete (&control_points);
130 if (_our_time_converter) {
131 delete _time_converter;
136 AutomationLine::event_handler (GdkEvent* event)
138 return PublicEditor::instance().canvas_line_event (event, line, this);
142 AutomationLine::update_visibility ()
144 if (_visible & Line) {
145 /* Only show the line there are some points, otherwise we may show an out-of-date line
146 when automation points have been removed (the line will still follow the shape of the
149 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
155 if (_visible & ControlPoints) {
156 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
159 } else if (_visible & SelectedControlPoints) {
160 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
161 if ((*i)->get_selected()) {
168 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
175 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
183 AutomationLine::hide ()
185 /* leave control points setting unchanged, we are just hiding the
189 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
193 AutomationLine::control_point_box_size ()
195 if (alist->interpolation() == AutomationList::Discrete) {
196 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
200 if (_height > TimeAxisView::preset_height (HeightLarger)) {
202 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
209 AutomationLine::set_height (guint32 h)
214 double bsz = control_point_box_size();
216 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
217 (*i)->set_size (bsz);
225 AutomationLine::set_line_color (uint32_t color)
228 line->set_outline_color (color);
232 AutomationLine::set_uses_gain_mapping (bool yn)
234 if (yn != _uses_gain_mapping) {
235 _uses_gain_mapping = yn;
241 AutomationLine::nth (uint32_t n)
243 if (n < control_points.size()) {
244 return control_points[n];
251 AutomationLine::nth (uint32_t n) const
253 if (n < control_points.size()) {
254 return control_points[n];
261 AutomationLine::modify_point_y (ControlPoint& cp, double y)
263 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
264 and needs to be converted to a canvas unit distance.
269 y = _height - (y * _height);
271 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
273 trackview.editor().session()->begin_reversible_command (_("automation event move"));
274 trackview.editor().session()->add_command (
275 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
277 cp.move_to (x, y, ControlPoint::Full);
279 reset_line_coords (cp);
281 if (line_points.size() > 1) {
282 line->set (line_points);
286 sync_model_with_view_point (cp);
289 update_pending = false;
291 trackview.editor().session()->add_command (
292 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
294 trackview.editor().session()->commit_reversible_command ();
295 trackview.editor().session()->set_dirty ();
299 AutomationLine::reset_line_coords (ControlPoint& cp)
301 if (cp.view_index() < line_points.size()) {
302 line_points[cp.view_index()].x = cp.get_x ();
303 line_points[cp.view_index()].y = cp.get_y ();
308 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
310 update_pending = true;
312 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
313 sync_model_with_view_point (**i);
318 AutomationLine::get_verbose_cursor_string (double fraction) const
320 std::string s = fraction_to_string (fraction);
321 if (_uses_gain_mapping) {
329 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
331 std::string s = fraction_to_string (fraction);
332 if (_uses_gain_mapping) {
336 std::string d = fraction_to_relative_string (original, fraction);
343 if (_uses_gain_mapping) {
354 * @param fraction y fraction
355 * @return string representation of this value, using dB if appropriate.
358 AutomationLine::fraction_to_string (double fraction) const
362 if (_uses_gain_mapping) {
363 if (fraction == 0.0) {
364 snprintf (buf, sizeof (buf), "-inf");
366 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
369 view_to_model_coord_y (fraction);
370 if (EventTypeMap::instance().is_integer (alist->parameter())) {
371 snprintf (buf, sizeof (buf), "%d", (int)fraction);
373 snprintf (buf, sizeof (buf), "%.2f", fraction);
381 * @param original an old y-axis fraction
382 * @param fraction the new y fraction
383 * @return string representation of the difference between original and fraction, using dB if appropriate.
386 AutomationLine::fraction_to_relative_string (double original, double fraction) const
390 if (original == fraction) {
394 if (_uses_gain_mapping) {
395 if (original == 0.0) {
396 /* there is no sensible representation of a relative
397 change from -inf dB, so return an empty string.
400 } else if (fraction == 0.0) {
401 snprintf (buf, sizeof (buf), "-inf");
403 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
404 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
405 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
408 view_to_model_coord_y (original);
409 view_to_model_coord_y (fraction);
410 if (EventTypeMap::instance().is_integer (alist->parameter())) {
411 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
413 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
421 * @param s Value string in the form as returned by fraction_to_string.
422 * @return Corresponding y fraction.
425 AutomationLine::string_to_fraction (string const & s) const
432 sscanf (s.c_str(), "%lf", &v);
434 if (_uses_gain_mapping) {
435 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
438 model_to_view_coord (dummy, v);
444 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
445 * are other selected points.
447 * @param cp Point to drag.
448 * @param x Initial x position (units).
449 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
452 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
454 trackview.editor().session()->begin_reversible_command (_("automation event move"));
455 trackview.editor().session()->add_command (
456 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
458 _drag_points.clear ();
459 _drag_points.push_back (cp);
461 if (cp->get_selected ()) {
462 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
463 if (*i != cp && (*i)->get_selected()) {
464 _drag_points.push_back (*i);
469 start_drag_common (x, fraction);
472 /** Start dragging a line vertically (with no change in x)
473 * @param i1 Control point index of the `left' point on the line.
474 * @param i2 Control point index of the `right' point on the line.
475 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
478 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
480 trackview.editor().session()->begin_reversible_command (_("automation range move"));
481 trackview.editor().session()->add_command (
482 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
484 _drag_points.clear ();
486 for (uint32_t i = i1; i <= i2; i++) {
487 _drag_points.push_back (nth (i));
490 start_drag_common (0, fraction);
493 /** Start dragging multiple points (with no change in x)
494 * @param cp Points to drag.
495 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
498 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
500 trackview.editor().session()->begin_reversible_command (_("automation range move"));
501 trackview.editor().session()->add_command (
502 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
505 start_drag_common (0, fraction);
508 struct ControlPointSorter
510 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
511 if (floateq (a->get_x(), b->get_x(), 1)) {
512 return a->view_index() < b->view_index();
514 return a->get_x() < b->get_x();
518 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
519 : line (al), before_x (0), after_x (DBL_MAX)
524 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
526 uint32_t sz = size();
528 if (sz > 0 && sz < line.npoints()) {
529 const TempoMap& map (e.session()->tempo_map());
531 /* determine the limits on x-axis motion for this
532 contiguous range of control points
535 if (front()->view_index() > 0) {
536 before_x = line.nth (front()->view_index() - 1)->get_x();
538 const framepos_t pos = e.pixel_to_sample(before_x);
539 const Meter& meter = map.meter_at (pos);
540 const framecnt_t len = ceil(meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate()) / 1920.0 / meter.divisions_per_bar());
541 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
543 before_x += one_tick_in_pixels;
546 /* if our last point has a point after it in the line,
547 we have an "after" bound
550 if (back()->view_index() < (line.npoints() - 1)) {
551 after_x = line.nth (back()->view_index() + 1)->get_x();
553 const framepos_t pos = e.pixel_to_sample(after_x);
554 const Meter& meter = map.meter_at (pos);
555 const framecnt_t len = ceil(meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate()) / 1920.0 / meter.divisions_per_bar());
556 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
558 after_x -= one_tick_in_pixels;
564 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
570 /* get the maximum distance we can move any of these points along the x-axis
573 double tx; /* possible position a point would move to, given dx */
577 /* check the last point, since we're moving later in time */
580 /* check the first point, since we're moving earlier in time */
584 tx = cp->get_x() + dx; // new possible position if we just add the motion
585 tx = max (tx, before_x); // can't move later than following point
586 tx = min (tx, after_x); // can't move earlier than preceeding point
587 return tx - cp->get_x ();
591 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
593 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
594 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
595 line.reset_line_coords (**i);
599 /** Common parts of starting a drag.
600 * @param x Starting x position in units, or 0 if x is being ignored.
601 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
604 AutomationLine::start_drag_common (double x, float fraction)
608 _last_drag_fraction = fraction;
609 _drag_had_movement = false;
612 /* they are probably ordered already, but we have to make sure */
614 _drag_points.sort (ControlPointSorter());
618 /** Should be called to indicate motion during a drag.
619 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
620 * @param fraction New y fraction.
621 * @return x position and y fraction that were actually used (once clamped).
624 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
626 if (_drag_points.empty()) {
627 return pair<double,float> (x,fraction);
630 double dx = ignore_x ? 0 : (x - _drag_x);
631 double dy = fraction - _last_drag_fraction;
633 if (!_drag_had_movement) {
635 /* "first move" ... do some stuff that we don't want to do if
636 no motion ever took place, but need to do before we handle
640 /* partition the points we are dragging into (potentially several)
641 * set(s) of contiguous points. this will not happen with a normal
642 * drag, but if the user does a discontiguous selection, it can.
645 uint32_t expected_view_index = 0;
648 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
649 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
650 contig.reset (new ContiguousControlPoints (*this));
651 contiguous_points.push_back (contig);
653 contig->push_back (*i);
654 expected_view_index = (*i)->view_index() + 1;
657 if (contiguous_points.back()->empty()) {
658 contiguous_points.pop_back ();
661 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
662 (*ccp)->compute_x_bounds (trackview.editor());
666 /* OK, now on to the stuff related to *this* motion event. First, for
667 * each contiguous range, figure out the maximum x-axis motion we are
668 * allowed (because of neighbouring points that are not moving.
670 * if we are moving forwards with push, we don't need to do this,
671 * since all later points will move too.
674 if (dx < 0 || ((dx > 0) && !with_push)) {
675 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
676 double dxt = (*ccp)->clamp_dx (dx);
677 if (fabs (dxt) < fabs (dx)) {
685 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
686 double const y = ((_height - (*i)->get_y()) / _height) + dy;
697 /* and now move each section */
699 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
700 (*ccp)->move (dx, dy);
703 final_index = contiguous_points.back()->back()->view_index () + 1;
705 uint32_t i = final_index;
706 while ((p = nth (i)) != 0 && p->can_slide()) {
707 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
708 reset_line_coords (*p);
713 /* update actual line coordinates (will queue a redraw)
716 if (line_points.size() > 1) {
717 line->set (line_points);
721 _drag_distance += dx;
723 _last_drag_fraction = fraction;
724 _drag_had_movement = true;
725 did_push = with_push;
727 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
730 /** Should be called to indicate the end of a drag */
732 AutomationLine::end_drag (bool with_push, uint32_t final_index)
734 if (!_drag_had_movement) {
739 sync_model_with_view_points (_drag_points);
743 uint32_t i = final_index;
744 while ((p = nth (i)) != 0 && p->can_slide()) {
745 sync_model_with_view_point (*p);
752 update_pending = false;
754 trackview.editor().session()->add_command (
755 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
757 trackview.editor().session()->set_dirty ();
760 contiguous_points.clear ();
764 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
766 /* find out where the visual control point is.
767 initial results are in canvas units. ask the
768 line to convert them to something relevant.
771 double view_x = cp.get_x();
772 double view_y = 1.0 - (cp.get_y() / _height);
774 /* if xval has not changed, set it directly from the model to avoid rounding errors */
776 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
777 view_x = (*cp.model())->when - _offset;
779 view_x = trackview.editor().pixel_to_sample (view_x);
780 view_x = _time_converter->from (view_x + _offset);
783 update_pending = true;
785 view_to_model_coord_y (view_y);
787 alist->modify (cp.model(), view_x, view_y);
791 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
793 ControlPoint *bcp = 0;
794 ControlPoint *acp = 0;
797 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
799 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
801 if ((*i)->get_x() <= unit_xval) {
803 if (!bcp || (*i)->get_x() > bcp->get_x()) {
805 before = bcp->view_index();
808 } else if ((*i)->get_x() > unit_xval) {
810 after = acp->view_index();
819 AutomationLine::is_last_point (ControlPoint& cp)
821 // If the list is not empty, and the point is the last point in the list
823 if (alist->empty()) {
827 AutomationList::const_iterator i = alist->end();
830 if (cp.model() == i) {
838 AutomationLine::is_first_point (ControlPoint& cp)
840 // If the list is not empty, and the point is the first point in the list
842 if (!alist->empty() && cp.model() == alist->begin()) {
849 // This is copied into AudioRegionGainLine
851 AutomationLine::remove_point (ControlPoint& cp)
853 trackview.editor().session()->begin_reversible_command (_("remove control point"));
854 XMLNode &before = alist->get_state();
856 alist->erase (cp.model());
858 trackview.editor().session()->add_command(
859 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
861 trackview.editor().session()->commit_reversible_command ();
862 trackview.editor().session()->set_dirty ();
865 /** Get selectable points within an area.
866 * @param start Start position in session frames.
867 * @param end End position in session frames.
868 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
869 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
870 * @param result Filled in with selectable things; in this case, ControlPoints.
873 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
875 /* convert fractions to display coordinates with 0 at the top of the track */
876 double const bot_track = (1 - topfrac) * trackview.current_height ();
877 double const top_track = (1 - botfrac) * trackview.current_height ();
879 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
880 double const model_when = (*(*i)->model())->when;
882 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
883 (as it is the session frame position of the start of the source)
886 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
888 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
889 results.push_back (*i);
895 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
901 AutomationLine::set_selected_points (PointSelection const & points)
903 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
904 (*i)->set_selected (false);
907 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
908 (*i)->set_selected (true);
914 void AutomationLine::set_colors ()
916 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
917 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
923 AutomationLine::list_changed ()
925 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
927 if (!update_pending) {
928 update_pending = true;
929 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
934 AutomationLine::reset_callback (const Evoral::ControlList& events)
940 if (events.empty()) {
941 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
944 control_points.clear ();
949 /* hide all existing points, and the line */
951 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
958 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
960 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
962 double tx = (*ai)->when;
963 double ty = (*ai)->value;
965 /* convert from model coordinates to canonical view coordinates */
967 model_to_view_coord (tx, ty);
969 if (isnan (tx) || isnan (ty)) {
970 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
975 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
979 /* convert x-coordinate to a canvas unit coordinate (this takes
980 * zoom and scroll into account).
983 tx = trackview.editor().sample_to_pixel_unrounded (tx);
985 /* convert from canonical view height (0..1.0) to actual
986 * height coordinates (using X11's top-left rooted system)
989 ty = _height - (ty * _height);
991 add_visible_control_point (vp, pi, tx, ty, ai, np);
995 /* discard extra CP's to avoid confusing ourselves */
997 while (control_points.size() > vp) {
998 ControlPoint* cp = control_points.back();
999 control_points.pop_back ();
1003 if (!terminal_points_can_slide) {
1004 control_points.back()->set_can_slide(false);
1009 /* reset the line coordinates given to the CanvasLine */
1011 while (line_points.size() < vp) {
1012 line_points.push_back (ArdourCanvas::Duple (0,0));
1015 while (line_points.size() > vp) {
1016 line_points.pop_back ();
1019 for (uint32_t n = 0; n < vp; ++n) {
1020 line_points[n].x = control_points[n]->get_x();
1021 line_points[n].y = control_points[n]->get_y();
1024 line->set (line_points);
1026 update_visibility ();
1029 set_selected_points (trackview.editor().get_selection().points);
1033 AutomationLine::reset ()
1035 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1036 update_pending = false;
1037 have_timeout = false;
1043 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1047 AutomationLine::queue_reset ()
1049 /* this must be called from the GUI thread
1052 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1053 /* automation write pass ... defer to a timeout */
1054 /* redraw in 1/4 second */
1055 if (!have_timeout) {
1056 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1057 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1058 have_timeout = true;
1060 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1068 AutomationLine::clear ()
1070 /* parent must create and commit command */
1071 XMLNode &before = alist->get_state();
1074 trackview.editor().session()->add_command (
1075 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1079 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1084 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1092 AutomationLine::add_visibility (VisibleAspects va)
1094 VisibleAspects old = _visible;
1096 _visible = VisibleAspects (_visible | va);
1098 if (old != _visible) {
1099 update_visibility ();
1104 AutomationLine::set_visibility (VisibleAspects va)
1106 if (_visible != va) {
1108 update_visibility ();
1113 AutomationLine::remove_visibility (VisibleAspects va)
1115 VisibleAspects old = _visible;
1117 _visible = VisibleAspects (_visible & ~va);
1119 if (old != _visible) {
1120 update_visibility ();
1125 AutomationLine::track_entered()
1127 if (alist->interpolation() != AutomationList::Discrete) {
1128 add_visibility (ControlPoints);
1133 AutomationLine::track_exited()
1135 if (alist->interpolation() != AutomationList::Discrete) {
1136 remove_visibility (ControlPoints);
1141 AutomationLine::get_state (void)
1143 /* function as a proxy for the model */
1144 return alist->get_state();
1148 AutomationLine::set_state (const XMLNode &node, int version)
1150 /* function as a proxy for the model */
1151 return alist->set_state (node, version);
1155 AutomationLine::view_to_model_coord (double& x, double& y) const
1157 x = _time_converter->from (x);
1158 view_to_model_coord_y (y);
1162 AutomationLine::view_to_model_coord_y (double& y) const
1164 /* TODO: This should be more generic ... */
1165 if (alist->parameter().type() == GainAutomation ||
1166 alist->parameter().type() == EnvelopeAutomation) {
1167 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1170 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1171 alist->parameter().type() == PanElevationAutomation) {
1173 } else if (alist->parameter().type() == PanWidthAutomation) {
1175 } else if (alist->parameter().type() == PluginAutomation) {
1176 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1178 y = rint (y * alist->parameter().max());
1183 AutomationLine::model_to_view_coord (double& x, double& y) const
1185 /* TODO: This should be more generic ... */
1186 if (alist->parameter().type() == GainAutomation ||
1187 alist->parameter().type() == EnvelopeAutomation) {
1188 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1189 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1190 alist->parameter().type() == PanElevationAutomation) {
1192 } else if (alist->parameter().type() == PanWidthAutomation) {
1194 } else if (alist->parameter().type() == PluginAutomation) {
1195 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1197 y = y / (double)alist->parameter().max(); /* ... like this */
1200 x = _time_converter->to (x) - _offset;
1203 /** Called when our list has announced that its interpolation style has changed */
1205 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1207 if (style == AutomationList::Discrete) {
1208 set_visibility (ControlPoints);
1211 set_visibility (Line);
1216 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1217 AutomationList::iterator model, uint32_t npoints)
1219 ControlPoint::ShapeType shape;
1221 if (view_index >= control_points.size()) {
1223 /* make sure we have enough control points */
1225 ControlPoint* ncp = new ControlPoint (*this);
1226 ncp->set_size (control_point_box_size ());
1228 control_points.push_back (ncp);
1231 if (!terminal_points_can_slide) {
1233 control_points[view_index]->set_can_slide (false);
1235 shape = ControlPoint::Start;
1237 shape = ControlPoint::Full;
1239 } else if (pi == npoints - 1) {
1240 control_points[view_index]->set_can_slide (false);
1241 shape = ControlPoint::End;
1243 control_points[view_index]->set_can_slide (true);
1244 shape = ControlPoint::Full;
1247 control_points[view_index]->set_can_slide (true);
1248 shape = ControlPoint::Full;
1251 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1253 /* finally, control visibility */
1255 if (_visible & ControlPoints) {
1256 control_points[view_index]->show ();
1258 control_points[view_index]->hide ();
1263 AutomationLine::connect_to_list ()
1265 _list_connections.drop_connections ();
1267 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1269 alist->InterpolationChanged.connect (
1270 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1273 MementoCommandBinder<AutomationList>*
1274 AutomationLine::memento_command_binder ()
1276 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1279 /** Set the maximum time that points on this line can be at, relative
1280 * to the start of the track or region that it is on.
1283 AutomationLine::set_maximum_time (framecnt_t t)
1285 if (_maximum_time == t) {
1294 /** @return min and max x positions of points that are in the list, in session frames */
1295 pair<framepos_t, framepos_t>
1296 AutomationLine::get_point_x_range () const
1298 pair<framepos_t, framepos_t> r (max_framepos, 0);
1300 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1301 r.first = min (r.first, session_position (i));
1302 r.second = max (r.second, session_position (i));
1309 AutomationLine::session_position (AutomationList::const_iterator p) const
1311 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1315 AutomationLine::set_offset (framepos_t off)
1317 if (_offset == off) {