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 "simplerect.h"
39 #include "automation_line.h"
40 #include "control_point.h"
41 #include "gui_thread.h"
42 #include "rgb_macros.h"
43 #include "ardour_ui.h"
44 #include "public_editor.h"
46 #include "selection.h"
47 #include "time_axis_view.h"
48 #include "point_selection.h"
49 #include "automation_time_axis.h"
51 #include "ardour/event_type_map.h"
52 #include "ardour/session.h"
57 using namespace ARDOUR;
59 using namespace Editing;
60 using namespace Gnome; // for Canvas
62 /** @param converter A TimeConverter whose origin_b is the start time of the AutomationList in session frames.
63 * This will not be deleted by AutomationLine.
65 AutomationLine::AutomationLine (const string& name, TimeAxisView& tv, ArdourCanvas::Group& parent,
66 boost::shared_ptr<AutomationList> al,
67 Evoral::TimeConverter<double, framepos_t>* converter)
71 , _time_converter (converter ? converter : new Evoral::IdentityConverter<double, framepos_t>)
72 , _parent_group (parent)
74 , _maximum_time (max_framepos)
77 _time_converter = converter;
78 _our_time_converter = false;
80 _time_converter = new Evoral::IdentityConverter<double, framepos_t>;
81 _our_time_converter = true;
86 update_pending = false;
88 _uses_gain_mapping = false;
91 terminal_points_can_slide = true;
94 group = new ArdourCanvas::Group (parent);
95 group->property_x() = 0.0;
96 group->property_y() = 0.0;
98 line = new ArdourCanvas::Line (*group);
99 line->property_width_pixels() = (guint)1;
100 line->set_data ("line", this);
102 line->signal_event().connect (sigc::mem_fun (*this, &AutomationLine::event_handler));
104 trackview.session()->register_with_memento_command_factory(alist->id(), this);
106 if (alist->parameter().type() == GainAutomation ||
107 alist->parameter().type() == EnvelopeAutomation) {
108 set_uses_gain_mapping (true);
111 interpolation_changed (alist->interpolation ());
116 AutomationLine::~AutomationLine ()
118 vector_delete (&control_points);
121 if (_our_time_converter) {
122 delete _time_converter;
127 AutomationLine::event_handler (GdkEvent* event)
129 return PublicEditor::instance().canvas_line_event (event, line, this);
133 AutomationLine::show ()
135 if (_visible & Line) {
136 /* Only show the line there are some points, otherwise we may show an out-of-date line
137 when automation points have been removed (the line will still follow the shape of the
140 if (alist->interpolation() != AutomationList::Discrete && control_points.size() >= 2) {
149 if (_visible & ControlPoints) {
150 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
151 (*i)->set_visible (true);
154 } else if (_visible & SelectedControlPoints) {
155 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
156 (*i)->set_visible ((*i)->get_selected());
159 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
160 (*i)->set_visible (false);
166 AutomationLine::hide ()
168 set_visibility (VisibleAspects (0));
172 AutomationLine::control_point_box_size ()
174 if (alist->interpolation() == AutomationList::Discrete) {
175 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
179 if (_height > TimeAxisView::preset_height (HeightLarger)) {
181 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
188 AutomationLine::set_height (guint32 h)
193 double bsz = control_point_box_size();
195 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
196 (*i)->set_size (bsz);
204 AutomationLine::set_line_color (uint32_t color)
207 line->property_fill_color_rgba() = color;
211 AutomationLine::set_uses_gain_mapping (bool yn)
213 if (yn != _uses_gain_mapping) {
214 _uses_gain_mapping = yn;
220 AutomationLine::nth (uint32_t n)
222 if (n < control_points.size()) {
223 return control_points[n];
230 AutomationLine::nth (uint32_t n) const
232 if (n < control_points.size()) {
233 return control_points[n];
240 AutomationLine::modify_point_y (ControlPoint& cp, double y)
242 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
243 and needs to be converted to a canvas unit distance.
248 y = _height - (y * _height);
250 double const x = trackview.editor().frame_to_unit_unrounded (_time_converter->to((*cp.model())->when) - _offset);
252 trackview.editor().session()->begin_reversible_command (_("automation event move"));
253 trackview.editor().session()->add_command (
254 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
256 cp.move_to (x, y, ControlPoint::Full);
258 reset_line_coords (cp);
260 if (line_points.size() > 1) {
261 line->property_points() = line_points;
265 sync_model_with_view_point (cp);
268 update_pending = false;
270 trackview.editor().session()->add_command (
271 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state()));
273 trackview.editor().session()->commit_reversible_command ();
274 trackview.editor().session()->set_dirty ();
278 AutomationLine::reset_line_coords (ControlPoint& cp)
280 if (cp.view_index() < line_points.size()) {
281 line_points[cp.view_index()].set_x (cp.get_x());
282 line_points[cp.view_index()].set_y (cp.get_y());
287 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
289 update_pending = true;
291 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
292 sync_model_with_view_point (**i);
297 AutomationLine::get_verbose_cursor_string (double fraction) const
299 std::string s = fraction_to_string (fraction);
300 if (_uses_gain_mapping) {
308 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
310 std::string s = fraction_to_string (fraction);
311 if (_uses_gain_mapping) {
315 std::string d = fraction_to_relative_string (original, fraction);
322 if (_uses_gain_mapping) {
333 * @param fraction y fraction
334 * @return string representation of this value, using dB if appropriate.
337 AutomationLine::fraction_to_string (double fraction) const
341 if (_uses_gain_mapping) {
342 if (fraction == 0.0) {
343 snprintf (buf, sizeof (buf), "-inf");
345 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
348 view_to_model_coord_y (fraction);
349 if (EventTypeMap::instance().is_integer (alist->parameter())) {
350 snprintf (buf, sizeof (buf), "%d", (int)fraction);
352 snprintf (buf, sizeof (buf), "%.2f", fraction);
360 * @param original an old y-axis fraction
361 * @param fraction the new y fraction
362 * @return string representation of the difference between original and fraction, using dB if appropriate.
365 AutomationLine::fraction_to_relative_string (double original, double fraction) const
369 if (original == fraction) {
373 if (_uses_gain_mapping) {
374 if (original == 0.0) {
375 /* there is no sensible representation of a relative
376 change from -inf dB, so return an empty string.
379 } else if (fraction == 0.0) {
380 snprintf (buf, sizeof (buf), "-inf");
382 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
383 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
384 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
387 view_to_model_coord_y (original);
388 view_to_model_coord_y (fraction);
389 if (EventTypeMap::instance().is_integer (alist->parameter())) {
390 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
392 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
400 * @param s Value string in the form as returned by fraction_to_string.
401 * @return Corresponding y fraction.
404 AutomationLine::string_to_fraction (string const & s) const
411 sscanf (s.c_str(), "%lf", &v);
413 if (_uses_gain_mapping) {
414 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
417 model_to_view_coord (dummy, v);
423 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
424 * are other selected points.
426 * @param cp Point to drag.
427 * @param x Initial x position (units).
428 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
431 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
433 trackview.editor().session()->begin_reversible_command (_("automation event move"));
434 trackview.editor().session()->add_command (
435 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
437 _drag_points.clear ();
438 _drag_points.push_back (cp);
440 if (cp->get_selected ()) {
441 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
442 if (*i != cp && (*i)->get_selected()) {
443 _drag_points.push_back (*i);
448 start_drag_common (x, fraction);
451 /** Start dragging a line vertically (with no change in x)
452 * @param i1 Control point index of the `left' point on the line.
453 * @param i2 Control point index of the `right' point on the line.
454 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
457 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
459 trackview.editor().session()->begin_reversible_command (_("automation range move"));
460 trackview.editor().session()->add_command (
461 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
463 _drag_points.clear ();
465 for (uint32_t i = i1; i <= i2; i++) {
466 _drag_points.push_back (nth (i));
469 start_drag_common (0, fraction);
472 /** Start dragging multiple points (with no change in x)
473 * @param cp Points to drag.
474 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
477 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
479 trackview.editor().session()->begin_reversible_command (_("automation range move"));
480 trackview.editor().session()->add_command (
481 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->property_points() = 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()));
721 trackview.editor().session()->set_dirty ();
724 contiguous_points.clear ();
728 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
730 /* find out where the visual control point is.
731 initial results are in canvas units. ask the
732 line to convert them to something relevant.
735 double view_x = cp.get_x();
736 double view_y = 1.0 - (cp.get_y() / _height);
738 /* if xval has not changed, set it directly from the model to avoid rounding errors */
740 if (view_x == trackview.editor().frame_to_unit_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
741 view_x = (*cp.model())->when - _offset;
743 view_x = trackview.editor().unit_to_frame (view_x);
744 view_x = _time_converter->from (view_x + _offset);
747 update_pending = true;
749 view_to_model_coord_y (view_y);
751 alist->modify (cp.model(), view_x, view_y);
755 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
757 ControlPoint *bcp = 0;
758 ControlPoint *acp = 0;
761 unit_xval = trackview.editor().frame_to_unit_unrounded (xval);
763 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
765 if ((*i)->get_x() <= unit_xval) {
767 if (!bcp || (*i)->get_x() > bcp->get_x()) {
769 before = bcp->view_index();
772 } else if ((*i)->get_x() > unit_xval) {
774 after = acp->view_index();
783 AutomationLine::is_last_point (ControlPoint& cp)
785 // If the list is not empty, and the point is the last point in the list
787 if (alist->empty()) {
791 AutomationList::const_iterator i = alist->end();
794 if (cp.model() == i) {
802 AutomationLine::is_first_point (ControlPoint& cp)
804 // If the list is not empty, and the point is the first point in the list
806 if (!alist->empty() && cp.model() == alist->begin()) {
813 // This is copied into AudioRegionGainLine
815 AutomationLine::remove_point (ControlPoint& cp)
817 trackview.editor().session()->begin_reversible_command (_("remove control point"));
818 XMLNode &before = alist->get_state();
820 alist->erase (cp.model());
822 trackview.editor().session()->add_command(
823 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
825 trackview.editor().session()->commit_reversible_command ();
826 trackview.editor().session()->set_dirty ();
829 /** Get selectable points within an area.
830 * @param start Start position in session frames.
831 * @param end End position in session frames.
832 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
833 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
834 * @param result Filled in with selectable things; in this case, ControlPoints.
837 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
839 /* convert fractions to display coordinates with 0 at the top of the track */
840 double const bot_track = (1 - topfrac) * trackview.current_height ();
841 double const top_track = (1 - botfrac) * trackview.current_height ();
843 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
844 double const model_when = (*(*i)->model())->when;
846 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
847 (as it is the session frame position of the start of the source)
850 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
852 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
853 results.push_back (*i);
859 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
865 AutomationLine::set_selected_points (PointSelection const & points)
867 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
868 (*i)->set_selected (false);
871 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
872 (*i)->set_selected (true);
878 void AutomationLine::set_colors ()
880 set_line_color (ARDOUR_UI::config()->canvasvar_AutomationLine.get());
881 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
887 AutomationLine::list_changed ()
889 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
891 if (!update_pending) {
892 update_pending = true;
893 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
898 AutomationLine::reset_callback (const Evoral::ControlList& events)
904 if (events.empty()) {
905 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
908 control_points.clear ();
913 /* hide all existing points, and the line */
915 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
922 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
924 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
926 double tx = (*ai)->when;
927 double ty = (*ai)->value;
929 /* convert from model coordinates to canonical view coordinates */
931 model_to_view_coord (tx, ty);
933 if (std::isnan (tx) || std::isnan (ty)) {
934 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
939 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
943 /* convert x-coordinate to a canvas unit coordinate (this takes
944 * zoom and scroll into account).
947 tx = trackview.editor().frame_to_unit_unrounded (tx);
949 /* convert from canonical view height (0..1.0) to actual
950 * height coordinates (using X11's top-left rooted system)
953 ty = _height - (ty * _height);
955 add_visible_control_point (vp, pi, tx, ty, ai, np);
959 /* discard extra CP's to avoid confusing ourselves */
961 while (control_points.size() > vp) {
962 ControlPoint* cp = control_points.back();
963 control_points.pop_back ();
967 if (!terminal_points_can_slide) {
968 control_points.back()->set_can_slide(false);
973 /* reset the line coordinates given to the CanvasLine */
975 while (line_points.size() < vp) {
976 line_points.push_back (Art::Point (0,0));
979 while (line_points.size() > vp) {
980 line_points.pop_back ();
983 for (uint32_t n = 0; n < vp; ++n) {
984 line_points[n].set_x (control_points[n]->get_x());
985 line_points[n].set_y (control_points[n]->get_y());
988 line->property_points() = line_points;
990 if (_visible && alist->interpolation() != AutomationList::Discrete) {
995 set_selected_points (trackview.editor().get_selection().points);
999 AutomationLine::reset ()
1001 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1002 update_pending = false;
1003 have_timeout = false;
1009 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1013 AutomationLine::queue_reset ()
1015 /* this must be called from the GUI thread
1018 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1019 /* automation write pass ... defer to a timeout */
1020 /* redraw in 1/4 second */
1021 if (!have_timeout) {
1022 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1023 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1024 have_timeout = true;
1026 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1034 AutomationLine::clear ()
1036 /* parent must create and commit command */
1037 XMLNode &before = alist->get_state();
1040 trackview.editor().session()->add_command (
1041 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1045 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1050 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1058 AutomationLine::add_visibility (VisibleAspects va)
1060 _visible = VisibleAspects (_visible | va);
1065 AutomationLine::set_visibility (VisibleAspects va)
1072 AutomationLine::remove_visibility (VisibleAspects va)
1074 _visible = VisibleAspects (_visible & ~va);
1079 AutomationLine::track_entered()
1081 if (alist->interpolation() != AutomationList::Discrete) {
1082 add_visibility (ControlPoints);
1087 AutomationLine::track_exited()
1089 if (alist->interpolation() != AutomationList::Discrete) {
1090 remove_visibility (ControlPoints);
1095 AutomationLine::get_state (void)
1097 /* function as a proxy for the model */
1098 return alist->get_state();
1102 AutomationLine::set_state (const XMLNode &node, int version)
1104 /* function as a proxy for the model */
1105 return alist->set_state (node, version);
1109 AutomationLine::view_to_model_coord (double& x, double& y) const
1111 x = _time_converter->from (x);
1112 view_to_model_coord_y (y);
1116 AutomationLine::view_to_model_coord_y (double& y) const
1118 /* TODO: This should be more generic ... */
1119 if (alist->parameter().type() == GainAutomation ||
1120 alist->parameter().type() == EnvelopeAutomation) {
1121 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1124 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1125 alist->parameter().type() == PanElevationAutomation) {
1127 } else if (alist->parameter().type() == PanWidthAutomation) {
1129 } else if (alist->parameter().type() == PluginAutomation) {
1130 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1132 y = rint (y * alist->parameter().max());
1137 AutomationLine::model_to_view_coord (double& x, double& y) const
1139 /* TODO: This should be more generic ... */
1140 if (alist->parameter().type() == GainAutomation ||
1141 alist->parameter().type() == EnvelopeAutomation) {
1142 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1143 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1144 alist->parameter().type() == PanElevationAutomation) {
1146 } else if (alist->parameter().type() == PanWidthAutomation) {
1148 } else if (alist->parameter().type() == PluginAutomation) {
1149 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1151 y = y / (double)alist->parameter().max(); /* ... like this */
1154 x = _time_converter->to (x) - _offset;
1157 /** Called when our list has announced that its interpolation style has changed */
1159 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1161 if (style == AutomationList::Discrete) {
1162 set_visibility (ControlPoints);
1165 set_visibility (Line);
1170 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1171 AutomationList::iterator model, uint32_t npoints)
1173 ControlPoint::ShapeType shape;
1175 if (view_index >= control_points.size()) {
1177 /* make sure we have enough control points */
1179 ControlPoint* ncp = new ControlPoint (*this);
1180 ncp->set_size (control_point_box_size ());
1182 control_points.push_back (ncp);
1185 if (!terminal_points_can_slide) {
1187 control_points[view_index]->set_can_slide (false);
1189 shape = ControlPoint::Start;
1191 shape = ControlPoint::Full;
1193 } else if (pi == npoints - 1) {
1194 control_points[view_index]->set_can_slide (false);
1195 shape = ControlPoint::End;
1197 control_points[view_index]->set_can_slide (true);
1198 shape = ControlPoint::Full;
1201 control_points[view_index]->set_can_slide (true);
1202 shape = ControlPoint::Full;
1205 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1207 /* finally, control visibility */
1209 if (_visible & ControlPoints) {
1210 control_points[view_index]->show ();
1211 control_points[view_index]->set_visible (true);
1213 control_points[view_index]->set_visible (false);
1218 AutomationLine::connect_to_list ()
1220 _list_connections.drop_connections ();
1222 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1224 alist->InterpolationChanged.connect (
1225 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1228 MementoCommandBinder<AutomationList>*
1229 AutomationLine::memento_command_binder ()
1231 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1234 /** Set the maximum time that points on this line can be at, relative
1235 * to the start of the track or region that it is on.
1238 AutomationLine::set_maximum_time (framecnt_t t)
1240 if (_maximum_time == t) {
1249 /** @return min and max x positions of points that are in the list, in session frames */
1250 pair<framepos_t, framepos_t>
1251 AutomationLine::get_point_x_range () const
1253 pair<framepos_t, framepos_t> r (max_framepos, 0);
1255 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1256 r.first = min (r.first, session_position (i));
1257 r.second = max (r.second, session_position (i));
1264 AutomationLine::session_position (AutomationList::const_iterator p) const
1266 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1270 AutomationLine::set_offset (framepos_t off)
1272 if (_offset == off) {