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.
23 // 'std::isinf()' and 'std::isnan()' are not available in MSVC.
24 #define isinf(val) !((bool)_finite((double)val))
25 #define isnan(val) (bool)_isnan((double)val)
36 #include "boost/shared_ptr.hpp"
38 #include "pbd/floating.h"
39 #include "pbd/memento_command.h"
40 #include "pbd/stl_delete.h"
41 #include "pbd/stacktrace.h"
43 #include "ardour/automation_list.h"
44 #include "ardour/dB.h"
45 #include "ardour/debug.h"
47 #include "evoral/Curve.hpp"
49 #include "automation_line.h"
50 #include "control_point.h"
51 #include "gui_thread.h"
52 #include "rgb_macros.h"
53 #include "ardour_ui.h"
54 #include "public_editor.h"
56 #include "selection.h"
57 #include "time_axis_view.h"
58 #include "point_selection.h"
59 #include "automation_time_axis.h"
61 #include "ardour/event_type_map.h"
62 #include "ardour/session.h"
67 using namespace ARDOUR;
69 using namespace Editing;
71 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
72 * This will not be deleted by AutomationLine.
74 AutomationLine::AutomationLine (const string& name, TimeAxisView& tv, ArdourCanvas::Group& parent,
75 boost::shared_ptr<AutomationList> al,
76 Evoral::TimeConverter<double, framepos_t>* converter)
80 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
81 , _parent_group (parent)
83 , _maximum_time (max_framepos)
86 _time_converter = converter;
87 _our_time_converter = false;
89 _time_converter = new Evoral::IdentityConverter<double, framepos_t>;
90 _our_time_converter = true;
95 update_pending = false;
97 _uses_gain_mapping = false;
100 terminal_points_can_slide = true;
103 group = new ArdourCanvas::Group (&parent);
105 line = new ArdourCanvas::Curve (group);
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) {
156 if (_visible & ControlPoints) {
157 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
158 (*i)->set_visible (true);
161 } else if (_visible & SelectedControlPoints) {
162 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
163 (*i)->set_visible ((*i)->get_selected());
166 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
167 (*i)->set_visible (false);
173 AutomationLine::hide ()
175 set_visibility (VisibleAspects (0));
179 AutomationLine::control_point_box_size ()
181 if (alist->interpolation() == AutomationList::Discrete) {
182 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
186 if (_height > TimeAxisView::preset_height (HeightLarger)) {
188 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
195 AutomationLine::set_height (guint32 h)
200 double bsz = control_point_box_size();
202 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
203 (*i)->set_size (bsz);
211 AutomationLine::set_line_color (uint32_t color)
214 line->set_outline_color (color);
218 AutomationLine::set_uses_gain_mapping (bool yn)
220 if (yn != _uses_gain_mapping) {
221 _uses_gain_mapping = yn;
227 AutomationLine::nth (uint32_t n)
229 if (n < control_points.size()) {
230 return control_points[n];
237 AutomationLine::nth (uint32_t n) const
239 if (n < control_points.size()) {
240 return control_points[n];
247 AutomationLine::modify_point_y (ControlPoint& cp, double y)
249 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
250 and needs to be converted to a canvas unit distance.
255 y = _height - (y * _height);
257 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
259 trackview.editor().session()->begin_reversible_command (_("automation event move"));
260 trackview.editor().session()->add_command (
261 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0)
264 cp.move_to (x, y, ControlPoint::Full);
266 reset_line_coords (cp);
268 if (line_points.size() > 1) {
269 line->set (line_points);
273 sync_model_with_view_point (cp);
276 update_pending = false;
278 trackview.editor().session()->add_command (
279 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state())
282 trackview.editor().session()->commit_reversible_command ();
283 trackview.editor().session()->set_dirty ();
287 AutomationLine::reset_line_coords (ControlPoint& cp)
289 if (cp.view_index() < line_points.size()) {
290 line_points[cp.view_index()].x = cp.get_x ();
291 line_points[cp.view_index()].y = cp.get_y ();
296 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
298 update_pending = true;
300 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
301 sync_model_with_view_point (**i);
306 AutomationLine::get_verbose_cursor_string (double fraction) const
308 std::string s = fraction_to_string (fraction);
309 if (_uses_gain_mapping) {
317 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
319 std::string s = fraction_to_string (fraction);
320 if (_uses_gain_mapping) {
324 std::string d = fraction_to_relative_string (original, fraction);
331 if (_uses_gain_mapping) {
342 * @param fraction y fraction
343 * @return string representation of this value, using dB if appropriate.
346 AutomationLine::fraction_to_string (double fraction) const
350 if (_uses_gain_mapping) {
351 if (fraction == 0.0) {
352 snprintf (buf, sizeof (buf), "-inf");
354 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
357 view_to_model_coord_y (fraction);
358 if (EventTypeMap::instance().is_integer (alist->parameter())) {
359 snprintf (buf, sizeof (buf), "%d", (int)fraction);
361 snprintf (buf, sizeof (buf), "%.2f", fraction);
369 * @param original an old y-axis fraction
370 * @param fraction the new y fraction
371 * @return string representation of the difference between original and fraction, using dB if appropriate.
374 AutomationLine::fraction_to_relative_string (double original, double fraction) const
378 if (original == fraction) {
382 if (_uses_gain_mapping) {
383 if (original == 0.0) {
384 /* there is no sensible representation of a relative
385 change from -inf dB, so return an empty string.
388 } else if (fraction == 0.0) {
389 snprintf (buf, sizeof (buf), "-inf");
391 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
392 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
393 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
396 view_to_model_coord_y (original);
397 view_to_model_coord_y (fraction);
398 if (EventTypeMap::instance().is_integer (alist->parameter())) {
399 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
401 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
409 * @param s Value string in the form as returned by fraction_to_string.
410 * @return Corresponding y fraction.
413 AutomationLine::string_to_fraction (string const & s) const
420 sscanf (s.c_str(), "%lf", &v);
422 if (_uses_gain_mapping) {
423 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
426 model_to_view_coord (dummy, v);
432 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
433 * are other selected points.
435 * @param cp Point to drag.
436 * @param x Initial x position (units).
437 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
440 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
442 trackview.editor().session()->begin_reversible_command (_("automation event move"));
443 trackview.editor().session()->add_command (
444 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0)
447 _drag_points.clear ();
448 _drag_points.push_back (cp);
450 if (cp->get_selected ()) {
451 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
452 if (*i != cp && (*i)->get_selected()) {
453 _drag_points.push_back (*i);
458 start_drag_common (x, fraction);
461 /** Start dragging a line vertically (with no change in x)
462 * @param i1 Control point index of the `left' point on the line.
463 * @param i2 Control point index of the `right' point on the line.
464 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
467 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
469 trackview.editor().session()->begin_reversible_command (_("automation range move"));
470 trackview.editor().session()->add_command (
471 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0)
474 _drag_points.clear ();
476 for (uint32_t i = i1; i <= i2; i++) {
477 _drag_points.push_back (nth (i));
480 start_drag_common (0, fraction);
483 /** Start dragging multiple points (with no change in x)
484 * @param cp Points to drag.
485 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
488 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
490 trackview.editor().session()->begin_reversible_command (_("automation range move"));
491 trackview.editor().session()->add_command (
492 new MementoCommand<AutomationList> (memento_command_binder(), state, 0)
496 start_drag_common (0, fraction);
499 struct ControlPointSorter
501 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
502 if (floateq (a->get_x(), b->get_x(), 1)) {
503 return a->view_index() < b->view_index();
505 return a->get_x() < b->get_x();
509 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
510 : line (al), before_x (0), after_x (DBL_MAX)
515 AutomationLine::ContiguousControlPoints::compute_x_bounds ()
517 uint32_t sz = size();
519 if (sz > 0 && sz < line.npoints()) {
521 /* determine the limits on x-axis motion for this
522 contiguous range of control points
525 if (front()->view_index() > 0) {
526 before_x = line.nth (front()->view_index() - 1)->get_x();
529 /* if our last point has a point after it in the line,
530 we have an "after" bound
533 if (back()->view_index() < (line.npoints() - 2)) {
534 after_x = line.nth (back()->view_index() + 1)->get_x();
540 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
546 /* get the maximum distance we can move any of these points along the x-axis
549 double tx; /* possible position a point would move to, given dx */
553 /* check the last point, since we're moving later in time */
556 /* check the first point, since we're moving earlier in time */
560 tx = cp->get_x() + dx; // new possible position if we just add the motion
561 tx = max (tx, before_x); // can't move later than following point
562 tx = min (tx, after_x); // can't move earlier than preceeding point
563 return tx - cp->get_x ();
567 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
569 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
570 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
571 line.reset_line_coords (**i);
575 /** Common parts of starting a drag.
576 * @param x Starting x position in units, or 0 if x is being ignored.
577 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
580 AutomationLine::start_drag_common (double x, float fraction)
584 _last_drag_fraction = fraction;
585 _drag_had_movement = false;
588 /* they are probably ordered already, but we have to make sure */
590 _drag_points.sort (ControlPointSorter());
594 /** Should be called to indicate motion during a drag.
595 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
596 * @param fraction New y fraction.
597 * @return x position and y fraction that were actually used (once clamped).
600 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
602 if (_drag_points.empty()) {
603 return pair<double,float> (x,fraction);
606 double dx = ignore_x ? 0 : (x - _drag_x);
607 double dy = fraction - _last_drag_fraction;
609 if (!_drag_had_movement) {
611 /* "first move" ... do some stuff that we don't want to do if
612 no motion ever took place, but need to do before we handle
616 /* partition the points we are dragging into (potentially several)
617 * set(s) of contiguous points. this will not happen with a normal
618 * drag, but if the user does a discontiguous selection, it can.
621 uint32_t expected_view_index = 0;
624 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
625 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
626 contig.reset (new ContiguousControlPoints (*this));
627 contiguous_points.push_back (contig);
629 contig->push_back (*i);
630 expected_view_index = (*i)->view_index() + 1;
633 if (contiguous_points.back()->empty()) {
634 contiguous_points.pop_back ();
637 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
638 (*ccp)->compute_x_bounds ();
642 /* OK, now on to the stuff related to *this* motion event. First, for
643 * each contiguous range, figure out the maximum x-axis motion we are
644 * allowed (because of neighbouring points that are not moving.
646 * if we are moving forwards with push, we don't need to do this,
647 * since all later points will move too.
650 if (dx < 0 || ((dx > 0) && !with_push)) {
651 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
652 double dxt = (*ccp)->clamp_dx (dx);
653 if (fabs (dxt) < fabs (dx)) {
661 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
662 double const y = ((_height - (*i)->get_y()) / _height) + dy;
673 /* and now move each section */
675 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
676 (*ccp)->move (dx, dy);
679 final_index = contiguous_points.back()->back()->view_index () + 1;
681 uint32_t i = final_index;
682 while ((p = nth (i)) != 0 && p->can_slide()) {
683 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
684 reset_line_coords (*p);
689 /* update actual line coordinates (will queue a redraw)
692 if (line_points.size() > 1) {
693 line->set (line_points);
697 _drag_distance += dx;
699 _last_drag_fraction = fraction;
700 _drag_had_movement = true;
701 did_push = with_push;
703 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
706 /** Should be called to indicate the end of a drag */
708 AutomationLine::end_drag (bool with_push, uint32_t final_index)
710 if (!_drag_had_movement) {
715 sync_model_with_view_points (_drag_points);
719 uint32_t i = final_index;
720 while ((p = nth (i)) != 0 && p->can_slide()) {
721 sync_model_with_view_point (*p);
728 update_pending = false;
730 trackview.editor().session()->add_command (
731 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state())
734 trackview.editor().session()->set_dirty ();
737 contiguous_points.clear ();
741 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
743 /* find out where the visual control point is.
744 initial results are in canvas units. ask the
745 line to convert them to something relevant.
748 double view_x = cp.get_x();
749 double view_y = 1.0 - (cp.get_y() / _height);
751 /* if xval has not changed, set it directly from the model to avoid rounding errors */
753 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
754 view_x = (*cp.model())->when - _offset;
756 view_x = trackview.editor().pixel_to_sample (view_x);
757 view_x = _time_converter->from (view_x + _offset);
760 update_pending = true;
762 view_to_model_coord_y (view_y);
764 alist->modify (cp.model(), view_x, view_y);
768 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
770 ControlPoint *bcp = 0;
771 ControlPoint *acp = 0;
774 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
776 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
778 if ((*i)->get_x() <= unit_xval) {
780 if (!bcp || (*i)->get_x() > bcp->get_x()) {
782 before = bcp->view_index();
785 } else if ((*i)->get_x() > unit_xval) {
787 after = acp->view_index();
796 AutomationLine::is_last_point (ControlPoint& cp)
798 // If the list is not empty, and the point is the last point in the list
800 if (alist->empty()) {
804 AutomationList::const_iterator i = alist->end();
807 if (cp.model() == i) {
815 AutomationLine::is_first_point (ControlPoint& cp)
817 // If the list is not empty, and the point is the first point in the list
819 if (!alist->empty() && cp.model() == alist->begin()) {
826 // This is copied into AudioRegionGainLine
828 AutomationLine::remove_point (ControlPoint& cp)
830 trackview.editor().session()->begin_reversible_command (_("remove control point"));
831 XMLNode &before = alist->get_state();
833 alist->erase (cp.model());
835 trackview.editor().session()->add_command(
836 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state())
839 trackview.editor().session()->commit_reversible_command ();
840 trackview.editor().session()->set_dirty ();
843 /** Get selectable points within an area.
844 * @param start Start position in session frames.
845 * @param end End position in session frames.
846 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
847 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
848 * @param result Filled in with selectable things; in this case, ControlPoints.
851 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
853 /* convert fractions to display coordinates with 0 at the top of the track */
854 double const bot_track = (1 - topfrac) * trackview.current_height ();
855 double const top_track = (1 - botfrac) * trackview.current_height ();
857 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
858 double const model_when = (*(*i)->model())->when;
860 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
861 (as it is the session frame position of the start of the source)
864 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
866 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
867 results.push_back (*i);
873 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
879 AutomationLine::set_selected_points (PointSelection const & points)
881 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
882 (*i)->set_selected (false);
885 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
886 (*i)->set_selected (true);
892 void AutomationLine::set_colors ()
894 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
895 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
901 AutomationLine::list_changed ()
903 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
905 if (!update_pending) {
906 update_pending = true;
907 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
912 AutomationLine::reset_callback (const Evoral::ControlList& events)
918 if (events.empty()) {
919 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
922 control_points.clear ();
927 /* hide all existing points, and the line */
929 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
936 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
938 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
940 double tx = (*ai)->when;
941 double ty = (*ai)->value;
943 /* convert from model coordinates to canonical view coordinates */
945 model_to_view_coord (tx, ty);
947 if (isnan (tx) || isnan (ty)) {
948 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
953 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
957 /* convert x-coordinate to a canvas unit coordinate (this takes
958 * zoom and scroll into account).
961 tx = trackview.editor().sample_to_pixel_unrounded (tx);
963 /* convert from canonical view height (0..1.0) to actual
964 * height coordinates (using X11's top-left rooted system)
967 ty = _height - (ty * _height);
969 add_visible_control_point (vp, pi, tx, ty, ai, np);
973 /* discard extra CP's to avoid confusing ourselves */
975 while (control_points.size() > vp) {
976 ControlPoint* cp = control_points.back();
977 control_points.pop_back ();
981 if (!terminal_points_can_slide) {
982 control_points.back()->set_can_slide(false);
987 /* reset the line coordinates given to the CanvasLine */
989 while (line_points.size() < vp) {
990 line_points.push_back (ArdourCanvas::Duple (0,0));
993 while (line_points.size() > vp) {
994 line_points.pop_back ();
997 for (uint32_t n = 0; n < vp; ++n) {
998 line_points[n].x = control_points[n]->get_x();
999 line_points[n].y = control_points[n]->get_y();
1002 line->set (line_points);
1004 if (_visible && alist->interpolation() != AutomationList::Discrete) {
1009 set_selected_points (trackview.editor().get_selection().points);
1013 AutomationLine::reset ()
1015 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1016 update_pending = false;
1017 have_timeout = false;
1023 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1027 AutomationLine::queue_reset ()
1029 /* this must be called from the GUI thread
1032 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1033 /* automation write pass ... defer to a timeout */
1034 /* redraw in 1/4 second */
1035 if (!have_timeout) {
1036 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1037 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1038 have_timeout = true;
1040 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1048 AutomationLine::clear ()
1050 /* parent must create and commit command */
1051 XMLNode &before = alist->get_state();
1054 trackview.editor().session()->add_command (
1055 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 _visible = VisibleAspects (_visible | va);
1080 AutomationLine::set_visibility (VisibleAspects va)
1087 AutomationLine::remove_visibility (VisibleAspects va)
1089 _visible = VisibleAspects (_visible & ~va);
1094 AutomationLine::track_entered()
1096 if (alist->interpolation() != AutomationList::Discrete) {
1097 add_visibility (ControlPoints);
1102 AutomationLine::track_exited()
1104 if (alist->interpolation() != AutomationList::Discrete) {
1105 remove_visibility (ControlPoints);
1110 AutomationLine::get_state (void)
1112 /* function as a proxy for the model */
1113 return alist->get_state();
1117 AutomationLine::set_state (const XMLNode &node, int version)
1119 /* function as a proxy for the model */
1120 return alist->set_state (node, version);
1124 AutomationLine::view_to_model_coord (double& x, double& y) const
1126 x = _time_converter->from (x);
1127 view_to_model_coord_y (y);
1131 AutomationLine::view_to_model_coord_y (double& y) const
1133 /* TODO: This should be more generic ... */
1134 if (alist->parameter().type() == GainAutomation ||
1135 alist->parameter().type() == EnvelopeAutomation) {
1136 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1139 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1140 alist->parameter().type() == PanElevationAutomation ||
1141 alist->parameter().type() == PanWidthAutomation) {
1143 } else if (alist->parameter().type() == PluginAutomation) {
1144 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1146 y = rint (y * alist->parameter().max());
1151 AutomationLine::model_to_view_coord (double& x, double& y) const
1153 /* TODO: This should be more generic ... */
1154 if (alist->parameter().type() == GainAutomation ||
1155 alist->parameter().type() == EnvelopeAutomation) {
1156 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1157 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1158 alist->parameter().type() == PanElevationAutomation ||
1159 alist->parameter().type() == PanWidthAutomation) {
1160 // vertical coordinate axis reversal
1162 } else if (alist->parameter().type() == PluginAutomation) {
1163 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1165 y = y / (double)alist->parameter().max(); /* ... like this */
1168 x = _time_converter->to (x) - _offset;
1171 /** Called when our list has announced that its interpolation style has changed */
1173 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1175 if (style == AutomationList::Discrete) {
1176 set_visibility (ControlPoints);
1179 set_visibility (Line);
1184 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1185 AutomationList::iterator model, uint32_t npoints)
1187 ControlPoint::ShapeType shape;
1189 if (view_index >= control_points.size()) {
1191 /* make sure we have enough control points */
1193 ControlPoint* ncp = new ControlPoint (*this);
1194 ncp->set_size (control_point_box_size ());
1196 control_points.push_back (ncp);
1199 if (!terminal_points_can_slide) {
1201 control_points[view_index]->set_can_slide (false);
1203 shape = ControlPoint::Start;
1205 shape = ControlPoint::Full;
1207 } else if (pi == npoints - 1) {
1208 control_points[view_index]->set_can_slide (false);
1209 shape = ControlPoint::End;
1211 control_points[view_index]->set_can_slide (true);
1212 shape = ControlPoint::Full;
1215 control_points[view_index]->set_can_slide (true);
1216 shape = ControlPoint::Full;
1219 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1221 /* finally, control visibility */
1223 if (_visible & ControlPoints) {
1224 control_points[view_index]->show ();
1225 control_points[view_index]->set_visible (true);
1227 control_points[view_index]->set_visible (false);
1232 AutomationLine::connect_to_list ()
1234 _list_connections.drop_connections ();
1236 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1238 alist->InterpolationChanged.connect (
1239 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context()
1243 MementoCommandBinder<AutomationList>*
1244 AutomationLine::memento_command_binder ()
1246 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1249 /** Set the maximum time that points on this line can be at, relative
1250 * to the start of the track or region that it is on.
1253 AutomationLine::set_maximum_time (framecnt_t t)
1255 if (_maximum_time == t) {
1264 /** @return min and max x positions of points that are in the list, in session frames */
1265 pair<framepos_t, framepos_t>
1266 AutomationLine::get_point_x_range () const
1268 pair<framepos_t, framepos_t> r (max_framepos, 0);
1270 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1271 r.first = min (r.first, session_position (i));
1272 r.second = max (r.second, session_position (i));
1279 AutomationLine::session_position (AutomationList::const_iterator p) const
1281 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1285 AutomationLine::set_offset (framepos_t off)
1287 if (_offset == off) {