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 #include "boost/shared_ptr.hpp"
27 #include "pbd/floating.h"
28 #include "pbd/memento_command.h"
29 #include "pbd/stl_delete.h"
30 #include "pbd/stacktrace.h"
32 #include "ardour/automation_list.h"
33 #include "ardour/dB.h"
34 #include "ardour/debug.h"
36 #include "evoral/Curve.hpp"
38 #include "automation_line.h"
39 #include "control_point.h"
40 #include "gui_thread.h"
41 #include "rgb_macros.h"
42 #include "ardour_ui.h"
43 #include "public_editor.h"
45 #include "selection.h"
46 #include "time_axis_view.h"
47 #include "point_selection.h"
48 #include "automation_time_axis.h"
50 #include "ardour/event_type_map.h"
51 #include "ardour/session.h"
56 using namespace ARDOUR;
58 using namespace Editing;
60 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
61 * This will not be deleted by AutomationLine.
63 AutomationLine::AutomationLine (const string& name, TimeAxisView& tv, ArdourCanvas::Group& parent,
64 boost::shared_ptr<AutomationList> al,
65 Evoral::TimeConverter<double, framepos_t>* converter)
69 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
70 , _parent_group (parent)
72 , _maximum_time (max_framepos)
75 _time_converter = converter;
76 _our_time_converter = false;
78 _time_converter = new Evoral::IdentityConverter<double, framepos_t>;
79 _our_time_converter = true;
84 update_pending = false;
86 _uses_gain_mapping = false;
89 terminal_points_can_slide = true;
92 group = new ArdourCanvas::Group (&parent);
94 line = new ArdourCanvas::Curve (group);
95 line->set_data ("line", this);
97 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
99 trackview.session()->register_with_memento_command_factory(alist->id(), this);
101 if (alist->parameter().type() == GainAutomation ||
102 alist->parameter().type() == EnvelopeAutomation) {
103 set_uses_gain_mapping (true);
106 interpolation_changed (alist->interpolation ());
111 AutomationLine::~AutomationLine ()
113 vector_delete (&control_points);
116 if (_our_time_converter) {
117 delete _time_converter;
122 AutomationLine::event_handler (GdkEvent* event)
124 return PublicEditor::instance().canvas_line_event (event, line, this);
128 AutomationLine::show ()
130 if (_visible & Line) {
131 /* Only show the line there are some points, otherwise we may show an out-of-date line
132 when automation points have been removed (the line will still follow the shape of the
135 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
144 if (_visible & ControlPoints) {
145 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
146 (*i)->set_visible (true);
149 } else if (_visible & SelectedControlPoints) {
150 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
151 (*i)->set_visible ((*i)->get_selected());
154 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
155 (*i)->set_visible (false);
161 AutomationLine::hide ()
163 set_visibility (VisibleAspects (0));
167 AutomationLine::control_point_box_size ()
169 if (alist->interpolation() == AutomationList::Discrete) {
170 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
174 if (_height > TimeAxisView::preset_height (HeightLarger)) {
176 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
183 AutomationLine::set_height (guint32 h)
188 double bsz = control_point_box_size();
190 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
191 (*i)->set_size (bsz);
199 AutomationLine::set_line_color (uint32_t color)
202 line->set_outline_color (color);
206 AutomationLine::set_uses_gain_mapping (bool yn)
208 if (yn != _uses_gain_mapping) {
209 _uses_gain_mapping = yn;
215 AutomationLine::nth (uint32_t n)
217 if (n < control_points.size()) {
218 return control_points[n];
225 AutomationLine::nth (uint32_t n) const
227 if (n < control_points.size()) {
228 return control_points[n];
235 AutomationLine::modify_point_y (ControlPoint& cp, double y)
237 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
238 and needs to be converted to a canvas unit distance.
243 y = _height - (y * _height);
245 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
247 trackview.editor().session()->begin_reversible_command (_("automation event move"));
248 trackview.editor().session()->add_command (
249 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0)
252 cp.move_to (x, y, ControlPoint::Full);
254 reset_line_coords (cp);
256 if (line_points.size() > 1) {
257 line->set (line_points);
261 sync_model_with_view_point (cp);
264 update_pending = false;
266 trackview.editor().session()->add_command (
267 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state())
270 trackview.editor().session()->commit_reversible_command ();
271 trackview.editor().session()->set_dirty ();
275 AutomationLine::reset_line_coords (ControlPoint& cp)
277 if (cp.view_index() < line_points.size()) {
278 line_points[cp.view_index()].x = cp.get_x ();
279 line_points[cp.view_index()].y = cp.get_y ();
284 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
286 update_pending = true;
288 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
289 sync_model_with_view_point (**i);
294 AutomationLine::get_verbose_cursor_string (double fraction) const
296 std::string s = fraction_to_string (fraction);
297 if (_uses_gain_mapping) {
305 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
307 std::string s = fraction_to_string (fraction);
308 if (_uses_gain_mapping) {
312 std::string d = fraction_to_relative_string (original, fraction);
319 if (_uses_gain_mapping) {
330 * @param fraction y fraction
331 * @return string representation of this value, using dB if appropriate.
334 AutomationLine::fraction_to_string (double fraction) const
338 if (_uses_gain_mapping) {
339 if (fraction == 0.0) {
340 snprintf (buf, sizeof (buf), "-inf");
342 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
345 view_to_model_coord_y (fraction);
346 if (EventTypeMap::instance().is_integer (alist->parameter())) {
347 snprintf (buf, sizeof (buf), "%d", (int)fraction);
349 snprintf (buf, sizeof (buf), "%.2f", fraction);
357 * @param original an old y-axis fraction
358 * @param fraction the new y fraction
359 * @return string representation of the difference between original and fraction, using dB if appropriate.
362 AutomationLine::fraction_to_relative_string (double original, double fraction) const
366 if (original == fraction) {
370 if (_uses_gain_mapping) {
371 if (original == 0.0) {
372 /* there is no sensible representation of a relative
373 change from -inf dB, so return an empty string.
376 } else if (fraction == 0.0) {
377 snprintf (buf, sizeof (buf), "-inf");
379 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
380 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
381 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
384 view_to_model_coord_y (original);
385 view_to_model_coord_y (fraction);
386 if (EventTypeMap::instance().is_integer (alist->parameter())) {
387 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
389 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
397 * @param s Value string in the form as returned by fraction_to_string.
398 * @return Corresponding y fraction.
401 AutomationLine::string_to_fraction (string const & s) const
408 sscanf (s.c_str(), "%lf", &v);
410 if (_uses_gain_mapping) {
411 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
414 model_to_view_coord (dummy, v);
420 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
421 * are other selected points.
423 * @param cp Point to drag.
424 * @param x Initial x position (units).
425 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
428 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
430 trackview.editor().session()->begin_reversible_command (_("automation event move"));
431 trackview.editor().session()->add_command (
432 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0)
435 _drag_points.clear ();
436 _drag_points.push_back (cp);
438 if (cp->get_selected ()) {
439 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
440 if (*i != cp && (*i)->get_selected()) {
441 _drag_points.push_back (*i);
446 start_drag_common (x, fraction);
449 /** Start dragging a line vertically (with no change in x)
450 * @param i1 Control point index of the `left' point on the line.
451 * @param i2 Control point index of the `right' point on the line.
452 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
455 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
457 trackview.editor().session()->begin_reversible_command (_("automation range move"));
458 trackview.editor().session()->add_command (
459 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0)
462 _drag_points.clear ();
464 for (uint32_t i = i1; i <= i2; i++) {
465 _drag_points.push_back (nth (i));
468 start_drag_common (0, fraction);
471 /** Start dragging multiple points (with no change in x)
472 * @param cp Points to drag.
473 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
476 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
478 trackview.editor().session()->begin_reversible_command (_("automation range move"));
479 trackview.editor().session()->add_command (
480 new MementoCommand<AutomationList> (memento_command_binder(), state, 0)
484 start_drag_common (0, fraction);
487 struct ControlPointSorter
489 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
490 if (floateq (a->get_x(), b->get_x(), 1)) {
491 return a->view_index() < b->view_index();
493 return a->get_x() < b->get_x();
497 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
498 : line (al), before_x (0), after_x (DBL_MAX)
503 AutomationLine::ContiguousControlPoints::compute_x_bounds ()
505 uint32_t sz = size();
507 if (sz > 0 && sz < line.npoints()) {
509 /* determine the limits on x-axis motion for this
510 contiguous range of control points
513 if (front()->view_index() > 0) {
514 before_x = line.nth (front()->view_index() - 1)->get_x();
517 /* if our last point has a point after it in the line,
518 we have an "after" bound
521 if (back()->view_index() < (line.npoints() - 2)) {
522 after_x = line.nth (back()->view_index() + 1)->get_x();
528 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
534 /* get the maximum distance we can move any of these points along the x-axis
537 double tx; /* possible position a point would move to, given dx */
541 /* check the last point, since we're moving later in time */
544 /* check the first point, since we're moving earlier in time */
548 tx = cp->get_x() + dx; // new possible position if we just add the motion
549 tx = max (tx, before_x); // can't move later than following point
550 tx = min (tx, after_x); // can't move earlier than preceeding point
551 return tx - cp->get_x ();
555 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
557 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
558 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
559 line.reset_line_coords (**i);
563 /** Common parts of starting a drag.
564 * @param x Starting x position in units, or 0 if x is being ignored.
565 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
568 AutomationLine::start_drag_common (double x, float fraction)
572 _last_drag_fraction = fraction;
573 _drag_had_movement = false;
576 /* they are probably ordered already, but we have to make sure */
578 _drag_points.sort (ControlPointSorter());
582 /** Should be called to indicate motion during a drag.
583 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
584 * @param fraction New y fraction.
585 * @return x position and y fraction that were actually used (once clamped).
588 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
590 if (_drag_points.empty()) {
591 return pair<double,float> (x,fraction);
594 double dx = ignore_x ? 0 : (x - _drag_x);
595 double dy = fraction - _last_drag_fraction;
597 if (!_drag_had_movement) {
599 /* "first move" ... do some stuff that we don't want to do if
600 no motion ever took place, but need to do before we handle
604 /* partition the points we are dragging into (potentially several)
605 * set(s) of contiguous points. this will not happen with a normal
606 * drag, but if the user does a discontiguous selection, it can.
609 uint32_t expected_view_index = 0;
612 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
613 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
614 contig.reset (new ContiguousControlPoints (*this));
615 contiguous_points.push_back (contig);
617 contig->push_back (*i);
618 expected_view_index = (*i)->view_index() + 1;
621 if (contiguous_points.back()->empty()) {
622 contiguous_points.pop_back ();
625 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
626 (*ccp)->compute_x_bounds ();
630 /* OK, now on to the stuff related to *this* motion event. First, for
631 * each contiguous range, figure out the maximum x-axis motion we are
632 * allowed (because of neighbouring points that are not moving.
634 * if we are moving forwards with push, we don't need to do this,
635 * since all later points will move too.
638 if (dx < 0 || ((dx > 0) && !with_push)) {
639 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
640 double dxt = (*ccp)->clamp_dx (dx);
641 if (fabs (dxt) < fabs (dx)) {
649 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
650 double const y = ((_height - (*i)->get_y()) / _height) + dy;
661 /* and now move each section */
663 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
664 (*ccp)->move (dx, dy);
667 final_index = contiguous_points.back()->back()->view_index () + 1;
669 uint32_t i = final_index;
670 while ((p = nth (i)) != 0 && p->can_slide()) {
671 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
672 reset_line_coords (*p);
677 /* update actual line coordinates (will queue a redraw)
680 if (line_points.size() > 1) {
681 line->set (line_points);
685 _drag_distance += dx;
687 _last_drag_fraction = fraction;
688 _drag_had_movement = true;
689 did_push = with_push;
691 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
694 /** Should be called to indicate the end of a drag */
696 AutomationLine::end_drag (bool with_push, uint32_t final_index)
698 if (!_drag_had_movement) {
703 sync_model_with_view_points (_drag_points);
707 uint32_t i = final_index;
708 while ((p = nth (i)) != 0 && p->can_slide()) {
709 sync_model_with_view_point (*p);
716 update_pending = false;
718 trackview.editor().session()->add_command (
719 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state())
722 trackview.editor().session()->set_dirty ();
725 contiguous_points.clear ();
729 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
731 /* find out where the visual control point is.
732 initial results are in canvas units. ask the
733 line to convert them to something relevant.
736 double view_x = cp.get_x();
737 double view_y = 1.0 - (cp.get_y() / _height);
739 /* if xval has not changed, set it directly from the model to avoid rounding errors */
741 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
742 view_x = (*cp.model())->when - _offset;
744 view_x = trackview.editor().pixel_to_sample (view_x);
745 view_x = _time_converter->from (view_x + _offset);
748 update_pending = true;
750 view_to_model_coord_y (view_y);
752 alist->modify (cp.model(), view_x, view_y);
756 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
758 ControlPoint *bcp = 0;
759 ControlPoint *acp = 0;
762 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
764 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
766 if ((*i)->get_x() <= unit_xval) {
768 if (!bcp || (*i)->get_x() > bcp->get_x()) {
770 before = bcp->view_index();
773 } else if ((*i)->get_x() > unit_xval) {
775 after = acp->view_index();
784 AutomationLine::is_last_point (ControlPoint& cp)
786 // If the list is not empty, and the point is the last point in the list
788 if (alist->empty()) {
792 AutomationList::const_iterator i = alist->end();
795 if (cp.model() == i) {
803 AutomationLine::is_first_point (ControlPoint& cp)
805 // If the list is not empty, and the point is the first point in the list
807 if (!alist->empty() && cp.model() == alist->begin()) {
814 // This is copied into AudioRegionGainLine
816 AutomationLine::remove_point (ControlPoint& cp)
818 trackview.editor().session()->begin_reversible_command (_("remove control point"));
819 XMLNode &before = alist->get_state();
821 alist->erase (cp.model());
823 trackview.editor().session()->add_command(
824 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state())
827 trackview.editor().session()->commit_reversible_command ();
828 trackview.editor().session()->set_dirty ();
831 /** Get selectable points within an area.
832 * @param start Start position in session frames.
833 * @param end End position in session frames.
834 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
835 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
836 * @param result Filled in with selectable things; in this case, ControlPoints.
839 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
841 /* convert fractions to display coordinates with 0 at the top of the track */
842 double const bot_track = (1 - topfrac) * trackview.current_height ();
843 double const top_track = (1 - botfrac) * trackview.current_height ();
845 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
846 double const model_when = (*(*i)->model())->when;
848 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
849 (as it is the session frame position of the start of the source)
852 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
854 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
855 results.push_back (*i);
861 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
867 AutomationLine::set_selected_points (PointSelection const & points)
869 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
870 (*i)->set_selected (false);
873 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
874 (*i)->set_selected (true);
880 void AutomationLine::set_colors ()
882 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
883 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
889 AutomationLine::list_changed ()
891 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
893 if (!update_pending) {
894 update_pending = true;
895 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
900 AutomationLine::reset_callback (const Evoral::ControlList& events)
906 if (events.empty()) {
907 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
910 control_points.clear ();
915 /* hide all existing points, and the line */
917 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
924 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
926 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
928 double tx = (*ai)->when;
929 double ty = (*ai)->value;
931 /* convert from model coordinates to canonical view coordinates */
933 model_to_view_coord (tx, ty);
935 if (std::isnan (tx) || std::isnan (ty)) {
936 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
941 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
945 /* convert x-coordinate to a canvas unit coordinate (this takes
946 * zoom and scroll into account).
949 tx = trackview.editor().sample_to_pixel_unrounded (tx);
951 /* convert from canonical view height (0..1.0) to actual
952 * height coordinates (using X11's top-left rooted system)
955 ty = _height - (ty * _height);
957 add_visible_control_point (vp, pi, tx, ty, ai, np);
961 /* discard extra CP's to avoid confusing ourselves */
963 while (control_points.size() > vp) {
964 ControlPoint* cp = control_points.back();
965 control_points.pop_back ();
969 if (!terminal_points_can_slide) {
970 control_points.back()->set_can_slide(false);
975 /* reset the line coordinates given to the CanvasLine */
977 while (line_points.size() < vp) {
978 line_points.push_back (ArdourCanvas::Duple (0,0));
981 while (line_points.size() > vp) {
982 line_points.pop_back ();
985 for (uint32_t n = 0; n < vp; ++n) {
986 line_points[n].x = control_points[n]->get_x();
987 line_points[n].y = control_points[n]->get_y();
990 line->set (line_points);
992 if (_visible && alist->interpolation() != AutomationList::Discrete) {
997 set_selected_points (trackview.editor().get_selection().points);
1001 AutomationLine::reset ()
1003 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1004 update_pending = false;
1005 have_timeout = false;
1011 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1015 AutomationLine::queue_reset ()
1017 /* this must be called from the GUI thread
1020 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1021 /* automation write pass ... defer to a timeout */
1022 /* redraw in 1/4 second */
1023 if (!have_timeout) {
1024 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1025 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1026 have_timeout = true;
1028 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1036 AutomationLine::clear ()
1038 /* parent must create and commit command */
1039 XMLNode &before = alist->get_state();
1042 trackview.editor().session()->add_command (
1043 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state())
1048 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1053 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1061 AutomationLine::add_visibility (VisibleAspects va)
1063 _visible = VisibleAspects (_visible | va);
1068 AutomationLine::set_visibility (VisibleAspects va)
1075 AutomationLine::remove_visibility (VisibleAspects va)
1077 _visible = VisibleAspects (_visible & ~va);
1082 AutomationLine::track_entered()
1084 if (alist->interpolation() != AutomationList::Discrete) {
1085 add_visibility (ControlPoints);
1090 AutomationLine::track_exited()
1092 if (alist->interpolation() != AutomationList::Discrete) {
1093 remove_visibility (ControlPoints);
1098 AutomationLine::get_state (void)
1100 /* function as a proxy for the model */
1101 return alist->get_state();
1105 AutomationLine::set_state (const XMLNode &node, int version)
1107 /* function as a proxy for the model */
1108 return alist->set_state (node, version);
1112 AutomationLine::view_to_model_coord (double& x, double& y) const
1114 x = _time_converter->from (x);
1115 view_to_model_coord_y (y);
1119 AutomationLine::view_to_model_coord_y (double& y) const
1121 /* TODO: This should be more generic ... */
1122 if (alist->parameter().type() == GainAutomation ||
1123 alist->parameter().type() == EnvelopeAutomation) {
1124 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1127 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1128 alist->parameter().type() == PanElevationAutomation ||
1129 alist->parameter().type() == PanWidthAutomation) {
1131 } else if (alist->parameter().type() == PluginAutomation) {
1132 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1134 y = rint (y * alist->parameter().max());
1139 AutomationLine::model_to_view_coord (double& x, double& y) const
1141 /* TODO: This should be more generic ... */
1142 if (alist->parameter().type() == GainAutomation ||
1143 alist->parameter().type() == EnvelopeAutomation) {
1144 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1145 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1146 alist->parameter().type() == PanElevationAutomation ||
1147 alist->parameter().type() == PanWidthAutomation) {
1148 // vertical coordinate axis reversal
1150 } else if (alist->parameter().type() == PluginAutomation) {
1151 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1153 y = y / (double)alist->parameter().max(); /* ... like this */
1156 x = _time_converter->to (x) - _offset;
1159 /** Called when our list has announced that its interpolation style has changed */
1161 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1163 if (style == AutomationList::Discrete) {
1164 set_visibility (ControlPoints);
1167 set_visibility (Line);
1172 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1173 AutomationList::iterator model, uint32_t npoints)
1175 ControlPoint::ShapeType shape;
1177 if (view_index >= control_points.size()) {
1179 /* make sure we have enough control points */
1181 ControlPoint* ncp = new ControlPoint (*this);
1182 ncp->set_size (control_point_box_size ());
1184 control_points.push_back (ncp);
1187 if (!terminal_points_can_slide) {
1189 control_points[view_index]->set_can_slide (false);
1191 shape = ControlPoint::Start;
1193 shape = ControlPoint::Full;
1195 } else if (pi == npoints - 1) {
1196 control_points[view_index]->set_can_slide (false);
1197 shape = ControlPoint::End;
1199 control_points[view_index]->set_can_slide (true);
1200 shape = ControlPoint::Full;
1203 control_points[view_index]->set_can_slide (true);
1204 shape = ControlPoint::Full;
1207 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1209 /* finally, control visibility */
1211 if (_visible & ControlPoints) {
1212 control_points[view_index]->show ();
1213 control_points[view_index]->set_visible (true);
1215 control_points[view_index]->set_visible (false);
1220 AutomationLine::connect_to_list ()
1222 _list_connections.drop_connections ();
1224 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1226 alist->InterpolationChanged.connect (
1227 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context()
1231 MementoCommandBinder<AutomationList>*
1232 AutomationLine::memento_command_binder ()
1234 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1237 /** Set the maximum time that points on this line can be at, relative
1238 * to the start of the track or region that it is on.
1241 AutomationLine::set_maximum_time (framecnt_t t)
1243 if (_maximum_time == t) {
1252 /** @return min and max x positions of points that are in the list, in session frames */
1253 pair<framepos_t, framepos_t>
1254 AutomationLine::get_point_x_range () const
1256 pair<framepos_t, framepos_t> r (max_framepos, 0);
1258 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1259 r.first = min (r.first, session_position (i));
1260 r.second = max (r.second, session_position (i));
1267 AutomationLine::session_position (AutomationList::const_iterator p) const
1269 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1273 AutomationLine::set_offset (framepos_t off)
1275 if (_offset == off) {