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"
43 #include "evoral/Curve.hpp"
45 #include "canvas/debug.h"
47 #include "automation_line.h"
48 #include "control_point.h"
49 #include "gui_thread.h"
50 #include "rgb_macros.h"
51 #include "ardour_ui.h"
52 #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::Group& 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 _time_converter = converter;
85 _our_time_converter = false;
87 _time_converter = new Evoral::IdentityConverter<double, framepos_t>;
88 _our_time_converter = true;
93 update_pending = false;
95 _uses_gain_mapping = false;
98 terminal_points_can_slide = true;
101 group = new ArdourCanvas::Group (&parent);
102 CANVAS_DEBUG_NAME (group, "region gain envelope group");
104 line = new ArdourCanvas::PolyLine (group);
105 CANVAS_DEBUG_NAME (line, "region gain envelope line");
106 line->set_data ("line", this);
107 line->set_outline_width (2.0);
109 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
111 trackview.session()->register_with_memento_command_factory(alist->id(), this);
113 if (alist->parameter().type() == GainAutomation ||
114 alist->parameter().type() == EnvelopeAutomation) {
115 set_uses_gain_mapping (true);
118 interpolation_changed (alist->interpolation ());
123 AutomationLine::~AutomationLine ()
125 vector_delete (&control_points);
128 if (_our_time_converter) {
129 delete _time_converter;
134 AutomationLine::event_handler (GdkEvent* event)
136 return PublicEditor::instance().canvas_line_event (event, line, this);
140 AutomationLine::show ()
142 if (_visible & Line) {
143 /* Only show the line there are some points, otherwise we may show an out-of-date line
144 when automation points have been removed (the line will still follow the shape of the
147 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
154 /* if the line is not visible, then no control points should be visible */
155 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
161 if (_visible & ControlPoints) {
162 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
165 } else if (_visible & SelectedControlPoints) {
166 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
167 if ((*i)->get_selected()) {
174 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
181 AutomationLine::hide ()
183 /* leave control points setting unchanged, we are just hiding the
187 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
191 AutomationLine::control_point_box_size ()
193 if (alist->interpolation() == AutomationList::Discrete) {
194 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
198 if (_height > TimeAxisView::preset_height (HeightLarger)) {
200 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
207 AutomationLine::set_height (guint32 h)
212 double bsz = control_point_box_size();
214 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
215 (*i)->set_size (bsz);
223 AutomationLine::set_line_color (uint32_t color)
226 line->set_outline_color (color);
230 AutomationLine::set_uses_gain_mapping (bool yn)
232 if (yn != _uses_gain_mapping) {
233 _uses_gain_mapping = yn;
239 AutomationLine::nth (uint32_t n)
241 if (n < control_points.size()) {
242 return control_points[n];
249 AutomationLine::nth (uint32_t n) const
251 if (n < control_points.size()) {
252 return control_points[n];
259 AutomationLine::modify_point_y (ControlPoint& cp, double y)
261 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
262 and needs to be converted to a canvas unit distance.
267 y = _height - (y * _height);
269 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
271 trackview.editor().session()->begin_reversible_command (_("automation event move"));
272 trackview.editor().session()->add_command (
273 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
275 cp.move_to (x, y, ControlPoint::Full);
277 reset_line_coords (cp);
279 if (line_points.size() > 1) {
280 line->set (line_points);
284 sync_model_with_view_point (cp);
287 update_pending = false;
289 trackview.editor().session()->add_command (
290 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
292 trackview.editor().session()->commit_reversible_command ();
293 trackview.editor().session()->set_dirty ();
297 AutomationLine::reset_line_coords (ControlPoint& cp)
299 if (cp.view_index() < line_points.size()) {
300 line_points[cp.view_index()].x = cp.get_x ();
301 line_points[cp.view_index()].y = cp.get_y ();
306 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
308 update_pending = true;
310 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
311 sync_model_with_view_point (**i);
316 AutomationLine::get_verbose_cursor_string (double fraction) const
318 std::string s = fraction_to_string (fraction);
319 if (_uses_gain_mapping) {
327 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
329 std::string s = fraction_to_string (fraction);
330 if (_uses_gain_mapping) {
334 std::string d = fraction_to_relative_string (original, fraction);
341 if (_uses_gain_mapping) {
352 * @param fraction y fraction
353 * @return string representation of this value, using dB if appropriate.
356 AutomationLine::fraction_to_string (double fraction) const
360 if (_uses_gain_mapping) {
361 if (fraction == 0.0) {
362 snprintf (buf, sizeof (buf), "-inf");
364 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
367 view_to_model_coord_y (fraction);
368 if (EventTypeMap::instance().is_integer (alist->parameter())) {
369 snprintf (buf, sizeof (buf), "%d", (int)fraction);
371 snprintf (buf, sizeof (buf), "%.2f", fraction);
379 * @param original an old y-axis fraction
380 * @param fraction the new y fraction
381 * @return string representation of the difference between original and fraction, using dB if appropriate.
384 AutomationLine::fraction_to_relative_string (double original, double fraction) const
388 if (original == fraction) {
392 if (_uses_gain_mapping) {
393 if (original == 0.0) {
394 /* there is no sensible representation of a relative
395 change from -inf dB, so return an empty string.
398 } else if (fraction == 0.0) {
399 snprintf (buf, sizeof (buf), "-inf");
401 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
402 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
403 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
406 view_to_model_coord_y (original);
407 view_to_model_coord_y (fraction);
408 if (EventTypeMap::instance().is_integer (alist->parameter())) {
409 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
411 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
419 * @param s Value string in the form as returned by fraction_to_string.
420 * @return Corresponding y fraction.
423 AutomationLine::string_to_fraction (string const & s) const
430 sscanf (s.c_str(), "%lf", &v);
432 if (_uses_gain_mapping) {
433 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
436 model_to_view_coord (dummy, v);
442 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
443 * are other selected points.
445 * @param cp Point to drag.
446 * @param x Initial x position (units).
447 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
450 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
452 trackview.editor().session()->begin_reversible_command (_("automation event move"));
453 trackview.editor().session()->add_command (
454 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
456 _drag_points.clear ();
457 _drag_points.push_back (cp);
459 if (cp->get_selected ()) {
460 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
461 if (*i != cp && (*i)->get_selected()) {
462 _drag_points.push_back (*i);
467 start_drag_common (x, fraction);
470 /** Start dragging a line vertically (with no change in x)
471 * @param i1 Control point index of the `left' point on the line.
472 * @param i2 Control point index of the `right' point on the line.
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_line (uint32_t i1, uint32_t i2, float fraction)
478 trackview.editor().session()->begin_reversible_command (_("automation range move"));
479 trackview.editor().session()->add_command (
480 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
482 _drag_points.clear ();
484 for (uint32_t i = i1; i <= i2; i++) {
485 _drag_points.push_back (nth (i));
488 start_drag_common (0, fraction);
491 /** Start dragging multiple points (with no change in x)
492 * @param cp Points to drag.
493 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
496 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
498 trackview.editor().session()->begin_reversible_command (_("automation range move"));
499 trackview.editor().session()->add_command (
500 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
503 start_drag_common (0, fraction);
506 struct ControlPointSorter
508 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
509 if (floateq (a->get_x(), b->get_x(), 1)) {
510 return a->view_index() < b->view_index();
512 return a->get_x() < b->get_x();
516 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
517 : line (al), before_x (0), after_x (DBL_MAX)
522 AutomationLine::ContiguousControlPoints::compute_x_bounds ()
524 uint32_t sz = size();
526 if (sz > 0 && sz < line.npoints()) {
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();
536 /* if our last point has a point after it in the line,
537 we have an "after" bound
540 if (back()->view_index() < (line.npoints() - 2)) {
541 after_x = line.nth (back()->view_index() + 1)->get_x();
547 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
553 /* get the maximum distance we can move any of these points along the x-axis
556 double tx; /* possible position a point would move to, given dx */
560 /* check the last point, since we're moving later in time */
563 /* check the first point, since we're moving earlier in time */
567 tx = cp->get_x() + dx; // new possible position if we just add the motion
568 tx = max (tx, before_x); // can't move later than following point
569 tx = min (tx, after_x); // can't move earlier than preceeding point
570 return tx - cp->get_x ();
574 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
576 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
577 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
578 line.reset_line_coords (**i);
582 /** Common parts of starting a drag.
583 * @param x Starting x position in units, or 0 if x is being ignored.
584 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
587 AutomationLine::start_drag_common (double x, float fraction)
591 _last_drag_fraction = fraction;
592 _drag_had_movement = false;
595 /* they are probably ordered already, but we have to make sure */
597 _drag_points.sort (ControlPointSorter());
601 /** Should be called to indicate motion during a drag.
602 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
603 * @param fraction New y fraction.
604 * @return x position and y fraction that were actually used (once clamped).
607 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
609 if (_drag_points.empty()) {
610 return pair<double,float> (x,fraction);
613 double dx = ignore_x ? 0 : (x - _drag_x);
614 double dy = fraction - _last_drag_fraction;
616 if (!_drag_had_movement) {
618 /* "first move" ... do some stuff that we don't want to do if
619 no motion ever took place, but need to do before we handle
623 /* partition the points we are dragging into (potentially several)
624 * set(s) of contiguous points. this will not happen with a normal
625 * drag, but if the user does a discontiguous selection, it can.
628 uint32_t expected_view_index = 0;
631 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
632 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
633 contig.reset (new ContiguousControlPoints (*this));
634 contiguous_points.push_back (contig);
636 contig->push_back (*i);
637 expected_view_index = (*i)->view_index() + 1;
640 if (contiguous_points.back()->empty()) {
641 contiguous_points.pop_back ();
644 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
645 (*ccp)->compute_x_bounds ();
649 /* OK, now on to the stuff related to *this* motion event. First, for
650 * each contiguous range, figure out the maximum x-axis motion we are
651 * allowed (because of neighbouring points that are not moving.
653 * if we are moving forwards with push, we don't need to do this,
654 * since all later points will move too.
657 if (dx < 0 || ((dx > 0) && !with_push)) {
658 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
659 double dxt = (*ccp)->clamp_dx (dx);
660 if (fabs (dxt) < fabs (dx)) {
668 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
669 double const y = ((_height - (*i)->get_y()) / _height) + dy;
680 /* and now move each section */
682 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
683 (*ccp)->move (dx, dy);
686 final_index = contiguous_points.back()->back()->view_index () + 1;
688 uint32_t i = final_index;
689 while ((p = nth (i)) != 0 && p->can_slide()) {
690 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
691 reset_line_coords (*p);
696 /* update actual line coordinates (will queue a redraw)
699 if (line_points.size() > 1) {
700 line->set (line_points);
704 _drag_distance += dx;
706 _last_drag_fraction = fraction;
707 _drag_had_movement = true;
708 did_push = with_push;
710 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
713 /** Should be called to indicate the end of a drag */
715 AutomationLine::end_drag (bool with_push, uint32_t final_index)
717 if (!_drag_had_movement) {
722 sync_model_with_view_points (_drag_points);
726 uint32_t i = final_index;
727 while ((p = nth (i)) != 0 && p->can_slide()) {
728 sync_model_with_view_point (*p);
735 update_pending = false;
737 trackview.editor().session()->add_command (
738 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
740 trackview.editor().session()->set_dirty ();
743 contiguous_points.clear ();
747 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
749 /* find out where the visual control point is.
750 initial results are in canvas units. ask the
751 line to convert them to something relevant.
754 double view_x = cp.get_x();
755 double view_y = 1.0 - (cp.get_y() / _height);
757 /* if xval has not changed, set it directly from the model to avoid rounding errors */
759 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
760 view_x = (*cp.model())->when - _offset;
762 view_x = trackview.editor().pixel_to_sample (view_x);
763 view_x = _time_converter->from (view_x + _offset);
766 update_pending = true;
768 view_to_model_coord_y (view_y);
770 alist->modify (cp.model(), view_x, view_y);
774 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
776 ControlPoint *bcp = 0;
777 ControlPoint *acp = 0;
780 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
782 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
784 if ((*i)->get_x() <= unit_xval) {
786 if (!bcp || (*i)->get_x() > bcp->get_x()) {
788 before = bcp->view_index();
791 } else if ((*i)->get_x() > unit_xval) {
793 after = acp->view_index();
802 AutomationLine::is_last_point (ControlPoint& cp)
804 // If the list is not empty, and the point is the last point in the list
806 if (alist->empty()) {
810 AutomationList::const_iterator i = alist->end();
813 if (cp.model() == i) {
821 AutomationLine::is_first_point (ControlPoint& cp)
823 // If the list is not empty, and the point is the first point in the list
825 if (!alist->empty() && cp.model() == alist->begin()) {
832 // This is copied into AudioRegionGainLine
834 AutomationLine::remove_point (ControlPoint& cp)
836 trackview.editor().session()->begin_reversible_command (_("remove control point"));
837 XMLNode &before = alist->get_state();
839 alist->erase (cp.model());
841 trackview.editor().session()->add_command(
842 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
844 trackview.editor().session()->commit_reversible_command ();
845 trackview.editor().session()->set_dirty ();
848 /** Get selectable points within an area.
849 * @param start Start position in session frames.
850 * @param end End position in session frames.
851 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
852 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
853 * @param result Filled in with selectable things; in this case, ControlPoints.
856 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
858 /* convert fractions to display coordinates with 0 at the top of the track */
859 double const bot_track = (1 - topfrac) * trackview.current_height ();
860 double const top_track = (1 - botfrac) * trackview.current_height ();
862 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
863 double const model_when = (*(*i)->model())->when;
865 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
866 (as it is the session frame position of the start of the source)
869 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
871 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
872 results.push_back (*i);
878 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
884 AutomationLine::set_selected_points (PointSelection const & points)
886 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
887 (*i)->set_selected (false);
890 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
891 (*i)->set_selected (true);
897 void AutomationLine::set_colors ()
899 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
900 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
906 AutomationLine::list_changed ()
908 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
910 if (!update_pending) {
911 update_pending = true;
912 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
917 AutomationLine::reset_callback (const Evoral::ControlList& events)
923 if (events.empty()) {
924 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
927 control_points.clear ();
932 /* hide all existing points, and the line */
934 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
941 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
943 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
945 double tx = (*ai)->when;
946 double ty = (*ai)->value;
948 /* convert from model coordinates to canonical view coordinates */
950 model_to_view_coord (tx, ty);
952 if (isnan (tx) || isnan (ty)) {
953 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
958 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
962 /* convert x-coordinate to a canvas unit coordinate (this takes
963 * zoom and scroll into account).
966 tx = trackview.editor().sample_to_pixel_unrounded (tx);
968 /* convert from canonical view height (0..1.0) to actual
969 * height coordinates (using X11's top-left rooted system)
972 ty = _height - (ty * _height);
974 add_visible_control_point (vp, pi, tx, ty, ai, np);
978 /* discard extra CP's to avoid confusing ourselves */
980 while (control_points.size() > vp) {
981 ControlPoint* cp = control_points.back();
982 control_points.pop_back ();
986 if (!terminal_points_can_slide) {
987 control_points.back()->set_can_slide(false);
992 /* reset the line coordinates given to the CanvasLine */
994 while (line_points.size() < vp) {
995 line_points.push_back (ArdourCanvas::Duple (0,0));
998 while (line_points.size() > vp) {
999 line_points.pop_back ();
1002 for (uint32_t n = 0; n < vp; ++n) {
1003 line_points[n].x = control_points[n]->get_x();
1004 line_points[n].y = control_points[n]->get_y();
1007 line->set (line_points);
1009 if (_visible && alist->interpolation() != AutomationList::Discrete) {
1014 set_selected_points (trackview.editor().get_selection().points);
1018 AutomationLine::reset ()
1020 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1021 update_pending = false;
1022 have_timeout = false;
1028 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1032 AutomationLine::queue_reset ()
1034 /* this must be called from the GUI thread
1037 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1038 /* automation write pass ... defer to a timeout */
1039 /* redraw in 1/4 second */
1040 if (!have_timeout) {
1041 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1042 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1043 have_timeout = true;
1045 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1053 AutomationLine::clear ()
1055 /* parent must create and commit command */
1056 XMLNode &before = alist->get_state();
1059 trackview.editor().session()->add_command (
1060 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1064 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1069 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1077 AutomationLine::add_visibility (VisibleAspects va)
1079 VisibleAspects old = _visible;
1081 _visible = VisibleAspects (_visible | va);
1083 if (old != _visible) {
1089 AutomationLine::set_visibility (VisibleAspects va)
1091 if (_visible != va) {
1098 AutomationLine::remove_visibility (VisibleAspects va)
1100 VisibleAspects old = _visible;
1102 _visible = VisibleAspects (_visible & ~va);
1104 if (old != _visible) {
1110 AutomationLine::track_entered()
1112 if (alist->interpolation() != AutomationList::Discrete) {
1113 add_visibility (ControlPoints);
1118 AutomationLine::track_exited()
1120 if (alist->interpolation() != AutomationList::Discrete) {
1121 remove_visibility (ControlPoints);
1126 AutomationLine::get_state (void)
1128 /* function as a proxy for the model */
1129 return alist->get_state();
1133 AutomationLine::set_state (const XMLNode &node, int version)
1135 /* function as a proxy for the model */
1136 return alist->set_state (node, version);
1140 AutomationLine::view_to_model_coord (double& x, double& y) const
1142 x = _time_converter->from (x);
1143 view_to_model_coord_y (y);
1147 AutomationLine::view_to_model_coord_y (double& y) const
1149 /* TODO: This should be more generic ... */
1150 if (alist->parameter().type() == GainAutomation ||
1151 alist->parameter().type() == EnvelopeAutomation) {
1152 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1155 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1156 alist->parameter().type() == PanElevationAutomation) {
1158 } else if (alist->parameter().type() == PanWidthAutomation) {
1160 } else if (alist->parameter().type() == PluginAutomation) {
1161 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1163 y = rint (y * alist->parameter().max());
1168 AutomationLine::model_to_view_coord (double& x, double& y) const
1170 /* TODO: This should be more generic ... */
1171 if (alist->parameter().type() == GainAutomation ||
1172 alist->parameter().type() == EnvelopeAutomation) {
1173 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1174 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1175 alist->parameter().type() == PanElevationAutomation) {
1177 } else if (alist->parameter().type() == PanWidthAutomation) {
1179 } else if (alist->parameter().type() == PluginAutomation) {
1180 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1182 y = y / (double)alist->parameter().max(); /* ... like this */
1185 x = _time_converter->to (x) - _offset;
1188 /** Called when our list has announced that its interpolation style has changed */
1190 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1192 if (style == AutomationList::Discrete) {
1193 set_visibility (ControlPoints);
1196 set_visibility (Line);
1201 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1202 AutomationList::iterator model, uint32_t npoints)
1204 ControlPoint::ShapeType shape;
1206 if (view_index >= control_points.size()) {
1208 /* make sure we have enough control points */
1210 ControlPoint* ncp = new ControlPoint (*this);
1211 ncp->set_size (control_point_box_size ());
1213 control_points.push_back (ncp);
1216 if (!terminal_points_can_slide) {
1218 control_points[view_index]->set_can_slide (false);
1220 shape = ControlPoint::Start;
1222 shape = ControlPoint::Full;
1224 } else if (pi == npoints - 1) {
1225 control_points[view_index]->set_can_slide (false);
1226 shape = ControlPoint::End;
1228 control_points[view_index]->set_can_slide (true);
1229 shape = ControlPoint::Full;
1232 control_points[view_index]->set_can_slide (true);
1233 shape = ControlPoint::Full;
1236 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1238 /* finally, control visibility */
1240 if (_visible & ControlPoints) {
1241 control_points[view_index]->show ();
1243 control_points[view_index]->hide ();
1248 AutomationLine::connect_to_list ()
1250 _list_connections.drop_connections ();
1252 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1254 alist->InterpolationChanged.connect (
1255 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1258 MementoCommandBinder<AutomationList>*
1259 AutomationLine::memento_command_binder ()
1261 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1264 /** Set the maximum time that points on this line can be at, relative
1265 * to the start of the track or region that it is on.
1268 AutomationLine::set_maximum_time (framecnt_t t)
1270 if (_maximum_time == t) {
1279 /** @return min and max x positions of points that are in the list, in session frames */
1280 pair<framepos_t, framepos_t>
1281 AutomationLine::get_point_x_range () const
1283 pair<framepos_t, framepos_t> r (max_framepos, 0);
1285 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1286 r.first = min (r.first, session_position (i));
1287 r.second = max (r.second, session_position (i));
1294 AutomationLine::session_position (AutomationList::const_iterator p) const
1296 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1300 AutomationLine::set_offset (framepos_t off)
1302 if (_offset == off) {