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)
276 cp.move_to (x, y, ControlPoint::Full);
278 reset_line_coords (cp);
280 if (line_points.size() > 1) {
281 line->set (line_points);
285 sync_model_with_view_point (cp);
288 update_pending = false;
290 trackview.editor().session()->add_command (
291 new MementoCommand<AutomationList> (memento_command_binder(), 0, &alist->get_state())
294 trackview.editor().session()->commit_reversible_command ();
295 trackview.editor().session()->set_dirty ();
299 AutomationLine::reset_line_coords (ControlPoint& cp)
301 if (cp.view_index() < line_points.size()) {
302 line_points[cp.view_index()].x = cp.get_x ();
303 line_points[cp.view_index()].y = cp.get_y ();
308 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
310 update_pending = true;
312 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
313 sync_model_with_view_point (**i);
318 AutomationLine::get_verbose_cursor_string (double fraction) const
320 std::string s = fraction_to_string (fraction);
321 if (_uses_gain_mapping) {
329 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
331 std::string s = fraction_to_string (fraction);
332 if (_uses_gain_mapping) {
336 std::string d = fraction_to_relative_string (original, fraction);
343 if (_uses_gain_mapping) {
354 * @param fraction y fraction
355 * @return string representation of this value, using dB if appropriate.
358 AutomationLine::fraction_to_string (double fraction) const
362 if (_uses_gain_mapping) {
363 if (fraction == 0.0) {
364 snprintf (buf, sizeof (buf), "-inf");
366 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
369 view_to_model_coord_y (fraction);
370 if (EventTypeMap::instance().is_integer (alist->parameter())) {
371 snprintf (buf, sizeof (buf), "%d", (int)fraction);
373 snprintf (buf, sizeof (buf), "%.2f", fraction);
381 * @param original an old y-axis fraction
382 * @param fraction the new y fraction
383 * @return string representation of the difference between original and fraction, using dB if appropriate.
386 AutomationLine::fraction_to_relative_string (double original, double fraction) const
390 if (original == fraction) {
394 if (_uses_gain_mapping) {
395 if (original == 0.0) {
396 /* there is no sensible representation of a relative
397 change from -inf dB, so return an empty string.
400 } else if (fraction == 0.0) {
401 snprintf (buf, sizeof (buf), "-inf");
403 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
404 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
405 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
408 view_to_model_coord_y (original);
409 view_to_model_coord_y (fraction);
410 if (EventTypeMap::instance().is_integer (alist->parameter())) {
411 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
413 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
421 * @param s Value string in the form as returned by fraction_to_string.
422 * @return Corresponding y fraction.
425 AutomationLine::string_to_fraction (string const & s) const
432 sscanf (s.c_str(), "%lf", &v);
434 if (_uses_gain_mapping) {
435 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
438 model_to_view_coord (dummy, v);
444 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
445 * are other selected points.
447 * @param cp Point to drag.
448 * @param x Initial x position (units).
449 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
452 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
454 trackview.editor().session()->begin_reversible_command (_("automation event move"));
455 trackview.editor().session()->add_command (
456 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0)
459 _drag_points.clear ();
460 _drag_points.push_back (cp);
462 if (cp->get_selected ()) {
463 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
464 if (*i != cp && (*i)->get_selected()) {
465 _drag_points.push_back (*i);
470 start_drag_common (x, fraction);
473 /** Start dragging a line vertically (with no change in x)
474 * @param i1 Control point index of the `left' point on the line.
475 * @param i2 Control point index of the `right' point on the line.
476 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
479 AutomationLine::start_drag_line (uint32_t i1, uint32_t i2, float fraction)
481 trackview.editor().session()->begin_reversible_command (_("automation range move"));
482 trackview.editor().session()->add_command (
483 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0)
486 _drag_points.clear ();
488 for (uint32_t i = i1; i <= i2; i++) {
489 _drag_points.push_back (nth (i));
492 start_drag_common (0, fraction);
495 /** Start dragging multiple points (with no change in x)
496 * @param cp Points to drag.
497 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
500 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
502 trackview.editor().session()->begin_reversible_command (_("automation range move"));
503 trackview.editor().session()->add_command (
504 new MementoCommand<AutomationList> (memento_command_binder(), state, 0)
508 start_drag_common (0, fraction);
511 struct ControlPointSorter
513 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
514 if (floateq (a->get_x(), b->get_x(), 1)) {
515 return a->view_index() < b->view_index();
517 return a->get_x() < b->get_x();
521 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
522 : line (al), before_x (0), after_x (DBL_MAX)
527 AutomationLine::ContiguousControlPoints::compute_x_bounds ()
529 uint32_t sz = size();
531 if (sz > 0 && sz < line.npoints()) {
533 /* determine the limits on x-axis motion for this
534 contiguous range of control points
537 if (front()->view_index() > 0) {
538 before_x = line.nth (front()->view_index() - 1)->get_x();
541 /* if our last point has a point after it in the line,
542 we have an "after" bound
545 if (back()->view_index() < (line.npoints() - 2)) {
546 after_x = line.nth (back()->view_index() + 1)->get_x();
552 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
558 /* get the maximum distance we can move any of these points along the x-axis
561 double tx; /* possible position a point would move to, given dx */
565 /* check the last point, since we're moving later in time */
568 /* check the first point, since we're moving earlier in time */
572 tx = cp->get_x() + dx; // new possible position if we just add the motion
573 tx = max (tx, before_x); // can't move later than following point
574 tx = min (tx, after_x); // can't move earlier than preceeding point
575 return tx - cp->get_x ();
579 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
581 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
582 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
583 line.reset_line_coords (**i);
587 /** Common parts of starting a drag.
588 * @param x Starting x position in units, or 0 if x is being ignored.
589 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
592 AutomationLine::start_drag_common (double x, float fraction)
596 _last_drag_fraction = fraction;
597 _drag_had_movement = false;
600 /* they are probably ordered already, but we have to make sure */
602 _drag_points.sort (ControlPointSorter());
606 /** Should be called to indicate motion during a drag.
607 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
608 * @param fraction New y fraction.
609 * @return x position and y fraction that were actually used (once clamped).
612 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
614 if (_drag_points.empty()) {
615 return pair<double,float> (x,fraction);
618 double dx = ignore_x ? 0 : (x - _drag_x);
619 double dy = fraction - _last_drag_fraction;
621 if (!_drag_had_movement) {
623 /* "first move" ... do some stuff that we don't want to do if
624 no motion ever took place, but need to do before we handle
628 /* partition the points we are dragging into (potentially several)
629 * set(s) of contiguous points. this will not happen with a normal
630 * drag, but if the user does a discontiguous selection, it can.
633 uint32_t expected_view_index = 0;
636 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
637 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
638 contig.reset (new ContiguousControlPoints (*this));
639 contiguous_points.push_back (contig);
641 contig->push_back (*i);
642 expected_view_index = (*i)->view_index() + 1;
645 if (contiguous_points.back()->empty()) {
646 contiguous_points.pop_back ();
649 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
650 (*ccp)->compute_x_bounds ();
654 /* OK, now on to the stuff related to *this* motion event. First, for
655 * each contiguous range, figure out the maximum x-axis motion we are
656 * allowed (because of neighbouring points that are not moving.
658 * if we are moving forwards with push, we don't need to do this,
659 * since all later points will move too.
662 if (dx < 0 || ((dx > 0) && !with_push)) {
663 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
664 double dxt = (*ccp)->clamp_dx (dx);
665 if (fabs (dxt) < fabs (dx)) {
673 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
674 double const y = ((_height - (*i)->get_y()) / _height) + dy;
685 /* and now move each section */
687 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
688 (*ccp)->move (dx, dy);
691 final_index = contiguous_points.back()->back()->view_index () + 1;
693 uint32_t i = final_index;
694 while ((p = nth (i)) != 0 && p->can_slide()) {
695 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
696 reset_line_coords (*p);
701 /* update actual line coordinates (will queue a redraw)
704 if (line_points.size() > 1) {
705 line->set (line_points);
709 _drag_distance += dx;
711 _last_drag_fraction = fraction;
712 _drag_had_movement = true;
713 did_push = with_push;
715 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
718 /** Should be called to indicate the end of a drag */
720 AutomationLine::end_drag (bool with_push, uint32_t final_index)
722 if (!_drag_had_movement) {
727 sync_model_with_view_points (_drag_points);
731 uint32_t i = final_index;
732 while ((p = nth (i)) != 0 && p->can_slide()) {
733 sync_model_with_view_point (*p);
740 update_pending = false;
742 trackview.editor().session()->add_command (
743 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state())
746 trackview.editor().session()->set_dirty ();
749 contiguous_points.clear ();
753 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
755 /* find out where the visual control point is.
756 initial results are in canvas units. ask the
757 line to convert them to something relevant.
760 double view_x = cp.get_x();
761 double view_y = 1.0 - (cp.get_y() / _height);
763 /* if xval has not changed, set it directly from the model to avoid rounding errors */
765 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
766 view_x = (*cp.model())->when - _offset;
768 view_x = trackview.editor().pixel_to_sample (view_x);
769 view_x = _time_converter->from (view_x + _offset);
772 update_pending = true;
774 view_to_model_coord_y (view_y);
776 alist->modify (cp.model(), view_x, view_y);
780 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
782 ControlPoint *bcp = 0;
783 ControlPoint *acp = 0;
786 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
788 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
790 if ((*i)->get_x() <= unit_xval) {
792 if (!bcp || (*i)->get_x() > bcp->get_x()) {
794 before = bcp->view_index();
797 } else if ((*i)->get_x() > unit_xval) {
799 after = acp->view_index();
808 AutomationLine::is_last_point (ControlPoint& cp)
810 // If the list is not empty, and the point is the last point in the list
812 if (alist->empty()) {
816 AutomationList::const_iterator i = alist->end();
819 if (cp.model() == i) {
827 AutomationLine::is_first_point (ControlPoint& cp)
829 // If the list is not empty, and the point is the first point in the list
831 if (!alist->empty() && cp.model() == alist->begin()) {
838 // This is copied into AudioRegionGainLine
840 AutomationLine::remove_point (ControlPoint& cp)
842 trackview.editor().session()->begin_reversible_command (_("remove control point"));
843 XMLNode &before = alist->get_state();
845 alist->erase (cp.model());
847 trackview.editor().session()->add_command(
848 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state())
851 trackview.editor().session()->commit_reversible_command ();
852 trackview.editor().session()->set_dirty ();
855 /** Get selectable points within an area.
856 * @param start Start position in session frames.
857 * @param end End position in session frames.
858 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
859 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
860 * @param result Filled in with selectable things; in this case, ControlPoints.
863 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
865 /* convert fractions to display coordinates with 0 at the top of the track */
866 double const bot_track = (1 - topfrac) * trackview.current_height ();
867 double const top_track = (1 - botfrac) * trackview.current_height ();
869 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
870 double const model_when = (*(*i)->model())->when;
872 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
873 (as it is the session frame position of the start of the source)
876 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
878 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
879 results.push_back (*i);
885 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
891 AutomationLine::set_selected_points (PointSelection const & points)
893 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
894 (*i)->set_selected (false);
897 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
898 (*i)->set_selected (true);
904 void AutomationLine::set_colors ()
906 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
907 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
913 AutomationLine::list_changed ()
915 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
917 if (!update_pending) {
918 update_pending = true;
919 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
924 AutomationLine::reset_callback (const Evoral::ControlList& events)
930 if (events.empty()) {
931 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
934 control_points.clear ();
939 /* hide all existing points, and the line */
941 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
948 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
950 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
952 double tx = (*ai)->when;
953 double ty = (*ai)->value;
955 /* convert from model coordinates to canonical view coordinates */
957 model_to_view_coord (tx, ty);
959 if (isnan (tx) || isnan (ty)) {
960 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
965 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
969 /* convert x-coordinate to a canvas unit coordinate (this takes
970 * zoom and scroll into account).
973 tx = trackview.editor().sample_to_pixel_unrounded (tx);
975 /* convert from canonical view height (0..1.0) to actual
976 * height coordinates (using X11's top-left rooted system)
979 ty = _height - (ty * _height);
981 add_visible_control_point (vp, pi, tx, ty, ai, np);
985 /* discard extra CP's to avoid confusing ourselves */
987 while (control_points.size() > vp) {
988 ControlPoint* cp = control_points.back();
989 control_points.pop_back ();
993 if (!terminal_points_can_slide) {
994 control_points.back()->set_can_slide(false);
999 /* reset the line coordinates given to the CanvasLine */
1001 while (line_points.size() < vp) {
1002 line_points.push_back (ArdourCanvas::Duple (0,0));
1005 while (line_points.size() > vp) {
1006 line_points.pop_back ();
1009 for (uint32_t n = 0; n < vp; ++n) {
1010 line_points[n].x = control_points[n]->get_x();
1011 line_points[n].y = control_points[n]->get_y();
1014 line->set (line_points);
1016 if (_visible && alist->interpolation() != AutomationList::Discrete) {
1021 set_selected_points (trackview.editor().get_selection().points);
1025 AutomationLine::reset ()
1027 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1028 update_pending = false;
1029 have_timeout = false;
1035 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1039 AutomationLine::queue_reset ()
1041 /* this must be called from the GUI thread
1044 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1045 /* automation write pass ... defer to a timeout */
1046 /* redraw in 1/4 second */
1047 if (!have_timeout) {
1048 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1049 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1050 have_timeout = true;
1052 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1060 AutomationLine::clear ()
1062 /* parent must create and commit command */
1063 XMLNode &before = alist->get_state();
1066 trackview.editor().session()->add_command (
1067 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state())
1072 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1077 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1085 AutomationLine::add_visibility (VisibleAspects va)
1087 VisibleAspects old = _visible;
1089 _visible = VisibleAspects (_visible | va);
1091 if (old != _visible) {
1097 AutomationLine::set_visibility (VisibleAspects va)
1099 if (_visible != va) {
1106 AutomationLine::remove_visibility (VisibleAspects va)
1108 VisibleAspects old = _visible;
1110 _visible = VisibleAspects (_visible & ~va);
1112 if (old != _visible) {
1118 AutomationLine::track_entered()
1120 if (alist->interpolation() != AutomationList::Discrete) {
1121 add_visibility (ControlPoints);
1126 AutomationLine::track_exited()
1128 if (alist->interpolation() != AutomationList::Discrete) {
1129 remove_visibility (ControlPoints);
1134 AutomationLine::get_state (void)
1136 /* function as a proxy for the model */
1137 return alist->get_state();
1141 AutomationLine::set_state (const XMLNode &node, int version)
1143 /* function as a proxy for the model */
1144 return alist->set_state (node, version);
1148 AutomationLine::view_to_model_coord (double& x, double& y) const
1150 x = _time_converter->from (x);
1151 view_to_model_coord_y (y);
1155 AutomationLine::view_to_model_coord_y (double& y) const
1157 /* TODO: This should be more generic ... */
1158 if (alist->parameter().type() == GainAutomation ||
1159 alist->parameter().type() == EnvelopeAutomation) {
1160 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1163 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1164 alist->parameter().type() == PanElevationAutomation ||
1165 alist->parameter().type() == PanWidthAutomation) {
1167 } else if (alist->parameter().type() == PluginAutomation) {
1168 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1170 y = rint (y * alist->parameter().max());
1175 AutomationLine::model_to_view_coord (double& x, double& y) const
1177 /* TODO: This should be more generic ... */
1178 if (alist->parameter().type() == GainAutomation ||
1179 alist->parameter().type() == EnvelopeAutomation) {
1180 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1181 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1182 alist->parameter().type() == PanElevationAutomation ||
1183 alist->parameter().type() == PanWidthAutomation) {
1184 // vertical coordinate axis reversal
1186 } else if (alist->parameter().type() == PluginAutomation) {
1187 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1189 y = y / (double)alist->parameter().max(); /* ... like this */
1192 x = _time_converter->to (x) - _offset;
1195 /** Called when our list has announced that its interpolation style has changed */
1197 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1199 if (style == AutomationList::Discrete) {
1200 set_visibility (ControlPoints);
1203 set_visibility (Line);
1208 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1209 AutomationList::iterator model, uint32_t npoints)
1211 ControlPoint::ShapeType shape;
1213 if (view_index >= control_points.size()) {
1215 /* make sure we have enough control points */
1217 ControlPoint* ncp = new ControlPoint (*this);
1218 ncp->set_size (control_point_box_size ());
1220 control_points.push_back (ncp);
1223 if (!terminal_points_can_slide) {
1225 control_points[view_index]->set_can_slide (false);
1227 shape = ControlPoint::Start;
1229 shape = ControlPoint::Full;
1231 } else if (pi == npoints - 1) {
1232 control_points[view_index]->set_can_slide (false);
1233 shape = ControlPoint::End;
1235 control_points[view_index]->set_can_slide (true);
1236 shape = ControlPoint::Full;
1239 control_points[view_index]->set_can_slide (true);
1240 shape = ControlPoint::Full;
1243 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1245 /* finally, control visibility */
1247 if (_visible & ControlPoints) {
1248 control_points[view_index]->show ();
1250 control_points[view_index]->hide ();
1255 AutomationLine::connect_to_list ()
1257 _list_connections.drop_connections ();
1259 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1261 alist->InterpolationChanged.connect (
1262 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context()
1266 MementoCommandBinder<AutomationList>*
1267 AutomationLine::memento_command_binder ()
1269 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1272 /** Set the maximum time that points on this line can be at, relative
1273 * to the start of the track or region that it is on.
1276 AutomationLine::set_maximum_time (framecnt_t t)
1278 if (_maximum_time == t) {
1287 /** @return min and max x positions of points that are in the list, in session frames */
1288 pair<framepos_t, framepos_t>
1289 AutomationLine::get_point_x_range () const
1291 pair<framepos_t, framepos_t> r (max_framepos, 0);
1293 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1294 r.first = min (r.first, session_position (i));
1295 r.second = max (r.second, session_position (i));
1302 AutomationLine::session_position (AutomationList::const_iterator p) const
1304 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1308 AutomationLine::set_offset (framepos_t off)
1310 if (_offset == off) {