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);
108 line->set_covers_threshold (4.0);
110 line->Event.connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
112 trackview.session()->register_with_memento_command_factory(alist->id(), this);
114 if (alist->parameter().type() == GainAutomation ||
115 alist->parameter().type() == EnvelopeAutomation) {
116 set_uses_gain_mapping (true);
119 interpolation_changed (alist->interpolation ());
124 AutomationLine::~AutomationLine ()
126 vector_delete (&control_points);
129 if (_our_time_converter) {
130 delete _time_converter;
135 AutomationLine::event_handler (GdkEvent* event)
137 return PublicEditor::instance().canvas_line_event (event, line, this);
141 AutomationLine::update_visibility ()
143 if (_visible & Line) {
144 /* Only show the line there are some points, otherwise we may show an out-of-date line
145 when automation points have been removed (the line will still follow the shape of the
148 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
154 if (_visible & ControlPoints) {
155 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
158 } else if (_visible & SelectedControlPoints) {
159 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
160 if ((*i)->get_selected()) {
167 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
179 AutomationLine::hide ()
181 /* leave control points setting unchanged, we are just hiding the
185 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
189 AutomationLine::control_point_box_size ()
191 if (alist->interpolation() == AutomationList::Discrete) {
192 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
196 if (_height > TimeAxisView::preset_height (HeightLarger)) {
198 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
205 AutomationLine::set_height (guint32 h)
210 double bsz = control_point_box_size();
212 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
213 (*i)->set_size (bsz);
221 AutomationLine::set_line_color (uint32_t color)
224 line->set_outline_color (color);
228 AutomationLine::set_uses_gain_mapping (bool yn)
230 if (yn != _uses_gain_mapping) {
231 _uses_gain_mapping = yn;
237 AutomationLine::nth (uint32_t n)
239 if (n < control_points.size()) {
240 return control_points[n];
247 AutomationLine::nth (uint32_t n) const
249 if (n < control_points.size()) {
250 return control_points[n];
257 AutomationLine::modify_point_y (ControlPoint& cp, double y)
259 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
260 and needs to be converted to a canvas unit distance.
265 y = _height - (y * _height);
267 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
269 trackview.editor().session()->begin_reversible_command (_("automation event move"));
270 trackview.editor().session()->add_command (
271 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
273 cp.move_to (x, y, ControlPoint::Full);
275 reset_line_coords (cp);
277 if (line_points.size() > 1) {
278 line->set (line_points);
282 sync_model_with_view_point (cp);
285 update_pending = false;
287 trackview.editor().session()->add_command (
288 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
290 trackview.editor().session()->commit_reversible_command ();
291 trackview.editor().session()->set_dirty ();
295 AutomationLine::reset_line_coords (ControlPoint& cp)
297 if (cp.view_index() < line_points.size()) {
298 line_points[cp.view_index()].x = cp.get_x ();
299 line_points[cp.view_index()].y = cp.get_y ();
304 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
306 update_pending = true;
308 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
309 sync_model_with_view_point (**i);
314 AutomationLine::get_verbose_cursor_string (double fraction) const
316 std::string s = fraction_to_string (fraction);
317 if (_uses_gain_mapping) {
325 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
327 std::string s = fraction_to_string (fraction);
328 if (_uses_gain_mapping) {
332 std::string d = fraction_to_relative_string (original, fraction);
339 if (_uses_gain_mapping) {
350 * @param fraction y fraction
351 * @return string representation of this value, using dB if appropriate.
354 AutomationLine::fraction_to_string (double fraction) const
358 if (_uses_gain_mapping) {
359 if (fraction == 0.0) {
360 snprintf (buf, sizeof (buf), "-inf");
362 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
365 view_to_model_coord_y (fraction);
366 if (EventTypeMap::instance().is_integer (alist->parameter())) {
367 snprintf (buf, sizeof (buf), "%d", (int)fraction);
369 snprintf (buf, sizeof (buf), "%.2f", fraction);
377 * @param original an old y-axis fraction
378 * @param fraction the new y fraction
379 * @return string representation of the difference between original and fraction, using dB if appropriate.
382 AutomationLine::fraction_to_relative_string (double original, double fraction) const
386 if (original == fraction) {
390 if (_uses_gain_mapping) {
391 if (original == 0.0) {
392 /* there is no sensible representation of a relative
393 change from -inf dB, so return an empty string.
396 } else if (fraction == 0.0) {
397 snprintf (buf, sizeof (buf), "-inf");
399 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
400 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
401 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
404 view_to_model_coord_y (original);
405 view_to_model_coord_y (fraction);
406 if (EventTypeMap::instance().is_integer (alist->parameter())) {
407 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
409 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
417 * @param s Value string in the form as returned by fraction_to_string.
418 * @return Corresponding y fraction.
421 AutomationLine::string_to_fraction (string const & s) const
428 sscanf (s.c_str(), "%lf", &v);
430 if (_uses_gain_mapping) {
431 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
434 model_to_view_coord (dummy, v);
440 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
441 * are other selected points.
443 * @param cp Point to drag.
444 * @param x Initial x position (units).
445 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
448 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
450 trackview.editor().session()->begin_reversible_command (_("automation event move"));
451 trackview.editor().session()->add_command (
452 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
454 _drag_points.clear ();
455 _drag_points.push_back (cp);
457 if (cp->get_selected ()) {
458 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
459 if (*i != cp && (*i)->get_selected()) {
460 _drag_points.push_back (*i);
465 start_drag_common (x, fraction);
468 /** Start dragging a line vertically (with no change in x)
469 * @param i1 Control point index of the `left' point on the line.
470 * @param i2 Control point index of the `right' point on the line.
471 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
474 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
476 trackview.editor().session()->begin_reversible_command (_("automation range move"));
477 trackview.editor().session()->add_command (
478 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
480 _drag_points.clear ();
482 for (uint32_t i = i1; i <= i2; i++) {
483 _drag_points.push_back (nth (i));
486 start_drag_common (0, fraction);
489 /** Start dragging multiple points (with no change in x)
490 * @param cp Points to drag.
491 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
494 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
496 trackview.editor().session()->begin_reversible_command (_("automation range move"));
497 trackview.editor().session()->add_command (
498 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
501 start_drag_common (0, fraction);
504 struct ControlPointSorter
506 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
507 if (floateq (a->get_x(), b->get_x(), 1)) {
508 return a->view_index() < b->view_index();
510 return a->get_x() < b->get_x();
514 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
515 : line (al), before_x (0), after_x (DBL_MAX)
520 AutomationLine::ContiguousControlPoints::compute_x_bounds ()
522 uint32_t sz = size();
524 if (sz > 0 && sz < line.npoints()) {
526 /* determine the limits on x-axis motion for this
527 contiguous range of control points
530 if (front()->view_index() > 0) {
531 before_x = line.nth (front()->view_index() - 1)->get_x();
534 /* if our last point has a point after it in the line,
535 we have an "after" bound
538 if (back()->view_index() < (line.npoints() - 2)) {
539 after_x = line.nth (back()->view_index() + 1)->get_x();
545 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
551 /* get the maximum distance we can move any of these points along the x-axis
554 double tx; /* possible position a point would move to, given dx */
558 /* check the last point, since we're moving later in time */
561 /* check the first point, since we're moving earlier in time */
565 tx = cp->get_x() + dx; // new possible position if we just add the motion
566 tx = max (tx, before_x); // can't move later than following point
567 tx = min (tx, after_x); // can't move earlier than preceeding point
568 return tx - cp->get_x ();
572 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
574 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
575 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
576 line.reset_line_coords (**i);
580 /** Common parts of starting a drag.
581 * @param x Starting x position in units, or 0 if x is being ignored.
582 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
585 AutomationLine::start_drag_common (double x, float fraction)
589 _last_drag_fraction = fraction;
590 _drag_had_movement = false;
593 /* they are probably ordered already, but we have to make sure */
595 _drag_points.sort (ControlPointSorter());
599 /** Should be called to indicate motion during a drag.
600 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
601 * @param fraction New y fraction.
602 * @return x position and y fraction that were actually used (once clamped).
605 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
607 if (_drag_points.empty()) {
608 return pair<double,float> (x,fraction);
611 double dx = ignore_x ? 0 : (x - _drag_x);
612 double dy = fraction - _last_drag_fraction;
614 if (!_drag_had_movement) {
616 /* "first move" ... do some stuff that we don't want to do if
617 no motion ever took place, but need to do before we handle
621 /* partition the points we are dragging into (potentially several)
622 * set(s) of contiguous points. this will not happen with a normal
623 * drag, but if the user does a discontiguous selection, it can.
626 uint32_t expected_view_index = 0;
629 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
630 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
631 contig.reset (new ContiguousControlPoints (*this));
632 contiguous_points.push_back (contig);
634 contig->push_back (*i);
635 expected_view_index = (*i)->view_index() + 1;
638 if (contiguous_points.back()->empty()) {
639 contiguous_points.pop_back ();
642 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
643 (*ccp)->compute_x_bounds ();
647 /* OK, now on to the stuff related to *this* motion event. First, for
648 * each contiguous range, figure out the maximum x-axis motion we are
649 * allowed (because of neighbouring points that are not moving.
651 * if we are moving forwards with push, we don't need to do this,
652 * since all later points will move too.
655 if (dx < 0 || ((dx > 0) && !with_push)) {
656 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
657 double dxt = (*ccp)->clamp_dx (dx);
658 if (fabs (dxt) < fabs (dx)) {
666 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
667 double const y = ((_height - (*i)->get_y()) / _height) + dy;
678 /* and now move each section */
680 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
681 (*ccp)->move (dx, dy);
684 final_index = contiguous_points.back()->back()->view_index () + 1;
686 uint32_t i = final_index;
687 while ((p = nth (i)) != 0 && p->can_slide()) {
688 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
689 reset_line_coords (*p);
694 /* update actual line coordinates (will queue a redraw)
697 if (line_points.size() > 1) {
698 line->set (line_points);
702 _drag_distance += dx;
704 _last_drag_fraction = fraction;
705 _drag_had_movement = true;
706 did_push = with_push;
708 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
711 /** Should be called to indicate the end of a drag */
713 AutomationLine::end_drag (bool with_push, uint32_t final_index)
715 if (!_drag_had_movement) {
720 sync_model_with_view_points (_drag_points);
724 uint32_t i = final_index;
725 while ((p = nth (i)) != 0 && p->can_slide()) {
726 sync_model_with_view_point (*p);
733 update_pending = false;
735 trackview.editor().session()->add_command (
736 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
738 trackview.editor().session()->set_dirty ();
741 contiguous_points.clear ();
745 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
747 /* find out where the visual control point is.
748 initial results are in canvas units. ask the
749 line to convert them to something relevant.
752 double view_x = cp.get_x();
753 double view_y = 1.0 - (cp.get_y() / _height);
755 /* if xval has not changed, set it directly from the model to avoid rounding errors */
757 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
758 view_x = (*cp.model())->when - _offset;
760 view_x = trackview.editor().pixel_to_sample (view_x);
761 view_x = _time_converter->from (view_x + _offset);
764 update_pending = true;
766 view_to_model_coord_y (view_y);
768 alist->modify (cp.model(), view_x, view_y);
772 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
774 ControlPoint *bcp = 0;
775 ControlPoint *acp = 0;
778 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
780 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
782 if ((*i)->get_x() <= unit_xval) {
784 if (!bcp || (*i)->get_x() > bcp->get_x()) {
786 before = bcp->view_index();
789 } else if ((*i)->get_x() > unit_xval) {
791 after = acp->view_index();
800 AutomationLine::is_last_point (ControlPoint& cp)
802 // If the list is not empty, and the point is the last point in the list
804 if (alist->empty()) {
808 AutomationList::const_iterator i = alist->end();
811 if (cp.model() == i) {
819 AutomationLine::is_first_point (ControlPoint& cp)
821 // If the list is not empty, and the point is the first point in the list
823 if (!alist->empty() && cp.model() == alist->begin()) {
830 // This is copied into AudioRegionGainLine
832 AutomationLine::remove_point (ControlPoint& cp)
834 trackview.editor().session()->begin_reversible_command (_("remove control point"));
835 XMLNode &before = alist->get_state();
837 alist->erase (cp.model());
839 trackview.editor().session()->add_command(
840 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
842 trackview.editor().session()->commit_reversible_command ();
843 trackview.editor().session()->set_dirty ();
846 /** Get selectable points within an area.
847 * @param start Start position in session frames.
848 * @param end End position in session frames.
849 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
850 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
851 * @param result Filled in with selectable things; in this case, ControlPoints.
854 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
856 /* convert fractions to display coordinates with 0 at the top of the track */
857 double const bot_track = (1 - topfrac) * trackview.current_height ();
858 double const top_track = (1 - botfrac) * trackview.current_height ();
860 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
861 double const model_when = (*(*i)->model())->when;
863 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
864 (as it is the session frame position of the start of the source)
867 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
869 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
870 results.push_back (*i);
876 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
882 AutomationLine::set_selected_points (PointSelection const & points)
884 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
885 (*i)->set_selected (false);
888 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
889 (*i)->set_selected (true);
895 void AutomationLine::set_colors ()
897 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
898 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
904 AutomationLine::list_changed ()
906 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
908 if (!update_pending) {
909 update_pending = true;
910 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
915 AutomationLine::reset_callback (const Evoral::ControlList& events)
921 if (events.empty()) {
922 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
925 control_points.clear ();
930 /* hide all existing points, and the line */
932 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
939 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
941 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
943 double tx = (*ai)->when;
944 double ty = (*ai)->value;
946 /* convert from model coordinates to canonical view coordinates */
948 model_to_view_coord (tx, ty);
950 if (isnan (tx) || isnan (ty)) {
951 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
956 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
960 /* convert x-coordinate to a canvas unit coordinate (this takes
961 * zoom and scroll into account).
964 tx = trackview.editor().sample_to_pixel_unrounded (tx);
966 /* convert from canonical view height (0..1.0) to actual
967 * height coordinates (using X11's top-left rooted system)
970 ty = _height - (ty * _height);
972 add_visible_control_point (vp, pi, tx, ty, ai, np);
976 /* discard extra CP's to avoid confusing ourselves */
978 while (control_points.size() > vp) {
979 ControlPoint* cp = control_points.back();
980 control_points.pop_back ();
984 if (!terminal_points_can_slide) {
985 control_points.back()->set_can_slide(false);
990 /* reset the line coordinates given to the CanvasLine */
992 while (line_points.size() < vp) {
993 line_points.push_back (ArdourCanvas::Duple (0,0));
996 while (line_points.size() > vp) {
997 line_points.pop_back ();
1000 for (uint32_t n = 0; n < vp; ++n) {
1001 line_points[n].x = control_points[n]->get_x();
1002 line_points[n].y = control_points[n]->get_y();
1005 line->set (line_points);
1007 update_visibility ();
1010 set_selected_points (trackview.editor().get_selection().points);
1014 AutomationLine::reset ()
1016 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1017 update_pending = false;
1018 have_timeout = false;
1024 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1028 AutomationLine::queue_reset ()
1030 /* this must be called from the GUI thread
1033 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1034 /* automation write pass ... defer to a timeout */
1035 /* redraw in 1/4 second */
1036 if (!have_timeout) {
1037 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1038 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1039 have_timeout = true;
1041 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1049 AutomationLine::clear ()
1051 /* parent must create and commit command */
1052 XMLNode &before = alist->get_state();
1055 trackview.editor().session()->add_command (
1056 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1060 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1065 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1073 AutomationLine::add_visibility (VisibleAspects va)
1075 VisibleAspects old = _visible;
1077 _visible = VisibleAspects (_visible | va);
1079 if (old != _visible) {
1080 update_visibility ();
1085 AutomationLine::set_visibility (VisibleAspects va)
1087 if (_visible != va) {
1089 update_visibility ();
1094 AutomationLine::remove_visibility (VisibleAspects va)
1096 VisibleAspects old = _visible;
1098 _visible = VisibleAspects (_visible & ~va);
1100 if (old != _visible) {
1101 update_visibility ();
1106 AutomationLine::track_entered()
1108 if (alist->interpolation() != AutomationList::Discrete) {
1109 add_visibility (ControlPoints);
1114 AutomationLine::track_exited()
1116 if (alist->interpolation() != AutomationList::Discrete) {
1117 remove_visibility (ControlPoints);
1122 AutomationLine::get_state (void)
1124 /* function as a proxy for the model */
1125 return alist->get_state();
1129 AutomationLine::set_state (const XMLNode &node, int version)
1131 /* function as a proxy for the model */
1132 return alist->set_state (node, version);
1136 AutomationLine::view_to_model_coord (double& x, double& y) const
1138 x = _time_converter->from (x);
1139 view_to_model_coord_y (y);
1143 AutomationLine::view_to_model_coord_y (double& y) const
1145 /* TODO: This should be more generic ... */
1146 if (alist->parameter().type() == GainAutomation ||
1147 alist->parameter().type() == EnvelopeAutomation) {
1148 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1151 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1152 alist->parameter().type() == PanElevationAutomation) {
1154 } else if (alist->parameter().type() == PanWidthAutomation) {
1156 } else if (alist->parameter().type() == PluginAutomation) {
1157 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1159 y = rint (y * alist->parameter().max());
1164 AutomationLine::model_to_view_coord (double& x, double& y) const
1166 /* TODO: This should be more generic ... */
1167 if (alist->parameter().type() == GainAutomation ||
1168 alist->parameter().type() == EnvelopeAutomation) {
1169 y = gain_to_slider_position_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 - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1178 y = y / (double)alist->parameter().max(); /* ... like this */
1181 x = _time_converter->to (x) - _offset;
1184 /** Called when our list has announced that its interpolation style has changed */
1186 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1188 if (style == AutomationList::Discrete) {
1189 set_visibility (ControlPoints);
1192 set_visibility (Line);
1197 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1198 AutomationList::iterator model, uint32_t npoints)
1200 ControlPoint::ShapeType shape;
1202 if (view_index >= control_points.size()) {
1204 /* make sure we have enough control points */
1206 ControlPoint* ncp = new ControlPoint (*this);
1207 ncp->set_size (control_point_box_size ());
1209 control_points.push_back (ncp);
1212 if (!terminal_points_can_slide) {
1214 control_points[view_index]->set_can_slide (false);
1216 shape = ControlPoint::Start;
1218 shape = ControlPoint::Full;
1220 } else if (pi == npoints - 1) {
1221 control_points[view_index]->set_can_slide (false);
1222 shape = ControlPoint::End;
1224 control_points[view_index]->set_can_slide (true);
1225 shape = ControlPoint::Full;
1228 control_points[view_index]->set_can_slide (true);
1229 shape = ControlPoint::Full;
1232 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1234 /* finally, control visibility */
1236 if (_visible & ControlPoints) {
1237 control_points[view_index]->show ();
1239 control_points[view_index]->hide ();
1244 AutomationLine::connect_to_list ()
1246 _list_connections.drop_connections ();
1248 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1250 alist->InterpolationChanged.connect (
1251 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1254 MementoCommandBinder<AutomationList>*
1255 AutomationLine::memento_command_binder ()
1257 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1260 /** Set the maximum time that points on this line can be at, relative
1261 * to the start of the track or region that it is on.
1264 AutomationLine::set_maximum_time (framecnt_t t)
1266 if (_maximum_time == t) {
1275 /** @return min and max x positions of points that are in the list, in session frames */
1276 pair<framepos_t, framepos_t>
1277 AutomationLine::get_point_x_range () const
1279 pair<framepos_t, framepos_t> r (max_framepos, 0);
1281 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1282 r.first = min (r.first, session_position (i));
1283 r.second = max (r.second, session_position (i));
1290 AutomationLine::session_position (AutomationList::const_iterator p) const
1292 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1296 AutomationLine::set_offset (framepos_t off)
1298 if (_offset == off) {