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"
42 #include "ardour/tempo.h"
44 #include "evoral/Curve.hpp"
46 #include "canvas/debug.h"
48 #include "automation_line.h"
49 #include "control_point.h"
50 #include "gui_thread.h"
51 #include "rgb_macros.h"
52 #include "ardour_ui.h"
53 #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::Item& 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::Container (&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) {
174 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
182 AutomationLine::hide ()
184 /* leave control points setting unchanged, we are just hiding the
188 set_visibility (AutomationLine::VisibleAspects (_visible & ~Line));
192 AutomationLine::control_point_box_size ()
194 if (alist->interpolation() == AutomationList::Discrete) {
195 return max((_height*4.0) / (double)(alist->parameter().max() - alist->parameter().min()),
199 if (_height > TimeAxisView::preset_height (HeightLarger)) {
201 } else if (_height > (guint32) TimeAxisView::preset_height (HeightNormal)) {
208 AutomationLine::set_height (guint32 h)
213 double bsz = control_point_box_size();
215 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
216 (*i)->set_size (bsz);
224 AutomationLine::set_line_color (uint32_t color)
227 line->set_outline_color (color);
231 AutomationLine::set_uses_gain_mapping (bool yn)
233 if (yn != _uses_gain_mapping) {
234 _uses_gain_mapping = yn;
240 AutomationLine::nth (uint32_t n)
242 if (n < control_points.size()) {
243 return control_points[n];
250 AutomationLine::nth (uint32_t n) const
252 if (n < control_points.size()) {
253 return control_points[n];
260 AutomationLine::modify_point_y (ControlPoint& cp, double y)
262 /* clamp y-coord appropriately. y is supposed to be a normalized fraction (0.0-1.0),
263 and needs to be converted to a canvas unit distance.
268 y = _height - (y * _height);
270 double const x = trackview.editor().sample_to_pixel_unrounded (_time_converter->to((*cp.model())->when) - _offset);
272 trackview.editor().session()->begin_reversible_command (_("automation event move"));
273 trackview.editor().session()->add_command (
274 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()));
293 trackview.editor().session()->commit_reversible_command ();
294 trackview.editor().session()->set_dirty ();
298 AutomationLine::reset_line_coords (ControlPoint& cp)
300 if (cp.view_index() < line_points.size()) {
301 line_points[cp.view_index()].x = cp.get_x ();
302 line_points[cp.view_index()].y = cp.get_y ();
307 AutomationLine::sync_model_with_view_points (list<ControlPoint*> cp)
309 update_pending = true;
311 for (list<ControlPoint*>::iterator i = cp.begin(); i != cp.end(); ++i) {
312 sync_model_with_view_point (**i);
317 AutomationLine::get_verbose_cursor_string (double fraction) const
319 std::string s = fraction_to_string (fraction);
320 if (_uses_gain_mapping) {
328 AutomationLine::get_verbose_cursor_relative_string (double original, double fraction) const
330 std::string s = fraction_to_string (fraction);
331 if (_uses_gain_mapping) {
335 std::string d = fraction_to_relative_string (original, fraction);
342 if (_uses_gain_mapping) {
353 * @param fraction y fraction
354 * @return string representation of this value, using dB if appropriate.
357 AutomationLine::fraction_to_string (double fraction) const
361 if (_uses_gain_mapping) {
362 if (fraction == 0.0) {
363 snprintf (buf, sizeof (buf), "-inf");
365 snprintf (buf, sizeof (buf), "%.1f", accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain())));
368 view_to_model_coord_y (fraction);
369 if (EventTypeMap::instance().is_integer (alist->parameter())) {
370 snprintf (buf, sizeof (buf), "%d", (int)fraction);
372 snprintf (buf, sizeof (buf), "%.2f", fraction);
380 * @param original an old y-axis fraction
381 * @param fraction the new y fraction
382 * @return string representation of the difference between original and fraction, using dB if appropriate.
385 AutomationLine::fraction_to_relative_string (double original, double fraction) const
389 if (original == fraction) {
393 if (_uses_gain_mapping) {
394 if (original == 0.0) {
395 /* there is no sensible representation of a relative
396 change from -inf dB, so return an empty string.
399 } else if (fraction == 0.0) {
400 snprintf (buf, sizeof (buf), "-inf");
402 double old_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (original, Config->get_max_gain()));
403 double new_db = accurate_coefficient_to_dB (slider_position_to_gain_with_max (fraction, Config->get_max_gain()));
404 snprintf (buf, sizeof (buf), "%.1f", new_db - old_db);
407 view_to_model_coord_y (original);
408 view_to_model_coord_y (fraction);
409 if (EventTypeMap::instance().is_integer (alist->parameter())) {
410 snprintf (buf, sizeof (buf), "%d", (int)fraction - (int)original);
412 snprintf (buf, sizeof (buf), "%.2f", fraction - original);
420 * @param s Value string in the form as returned by fraction_to_string.
421 * @return Corresponding y fraction.
424 AutomationLine::string_to_fraction (string const & s) const
431 sscanf (s.c_str(), "%lf", &v);
433 if (_uses_gain_mapping) {
434 v = gain_to_slider_position_with_max (dB_to_coefficient (v), Config->get_max_gain());
437 model_to_view_coord (dummy, v);
443 /** Start dragging a single point, possibly adding others if the supplied point is selected and there
444 * are other selected points.
446 * @param cp Point to drag.
447 * @param x Initial x position (units).
448 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
451 AutomationLine::start_drag_single (ControlPoint* cp, double x, float fraction)
453 trackview.editor().session()->begin_reversible_command (_("automation event move"));
454 trackview.editor().session()->add_command (
455 new MementoCommand<AutomationList> (memento_command_binder(), &get_state(), 0));
457 _drag_points.clear ();
458 _drag_points.push_back (cp);
460 if (cp->get_selected ()) {
461 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
462 if (*i != cp && (*i)->get_selected()) {
463 _drag_points.push_back (*i);
468 start_drag_common (x, fraction);
471 /** Start dragging a line vertically (with no change in x)
472 * @param i1 Control point index of the `left' point on the line.
473 * @param i2 Control point index of the `right' point on the line.
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_line (uint32_t i1, uint32_t i2, float fraction)
479 trackview.editor().session()->begin_reversible_command (_("automation range move"));
480 trackview.editor().session()->add_command (
481 new MementoCommand<AutomationList> (memento_command_binder (), &get_state(), 0));
483 _drag_points.clear ();
485 for (uint32_t i = i1; i <= i2; i++) {
486 _drag_points.push_back (nth (i));
489 start_drag_common (0, fraction);
492 /** Start dragging multiple points (with no change in x)
493 * @param cp Points to drag.
494 * @param fraction Initial y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
497 AutomationLine::start_drag_multiple (list<ControlPoint*> cp, float fraction, XMLNode* state)
499 trackview.editor().session()->begin_reversible_command (_("automation range move"));
500 trackview.editor().session()->add_command (
501 new MementoCommand<AutomationList> (memento_command_binder(), state, 0));
504 start_drag_common (0, fraction);
507 struct ControlPointSorter
509 bool operator() (ControlPoint const * a, ControlPoint const * b) const {
510 if (floateq (a->get_x(), b->get_x(), 1)) {
511 return a->view_index() < b->view_index();
513 return a->get_x() < b->get_x();
517 AutomationLine::ContiguousControlPoints::ContiguousControlPoints (AutomationLine& al)
518 : line (al), before_x (0), after_x (DBL_MAX)
523 AutomationLine::ContiguousControlPoints::compute_x_bounds (PublicEditor& e)
525 uint32_t sz = size();
527 if (sz > 0 && sz < line.npoints()) {
528 const TempoMap& map (e.session()->tempo_map());
530 /* determine the limits on x-axis motion for this
531 contiguous range of control points
534 if (front()->view_index() > 0) {
535 before_x = line.nth (front()->view_index() - 1)->get_x();
537 const framepos_t pos = e.pixel_to_sample(before_x);
538 const Meter& meter = map.meter_at (pos);
539 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
540 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()) );
541 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
543 before_x += one_tick_in_pixels;
546 /* if our last point has a point after it in the line,
547 we have an "after" bound
550 if (back()->view_index() < (line.npoints() - 1)) {
551 after_x = line.nth (back()->view_index() + 1)->get_x();
553 const framepos_t pos = e.pixel_to_sample(after_x);
554 const Meter& meter = map.meter_at (pos);
555 const framecnt_t len = ceil (meter.frames_per_bar (map.tempo_at (pos), e.session()->frame_rate())
556 / (Timecode::BBT_Time::ticks_per_beat * meter.divisions_per_bar()));
557 const double one_tick_in_pixels = e.sample_to_pixel_unrounded (len);
559 after_x -= one_tick_in_pixels;
565 AutomationLine::ContiguousControlPoints::clamp_dx (double dx)
571 /* get the maximum distance we can move any of these points along the x-axis
574 double tx; /* possible position a point would move to, given dx */
578 /* check the last point, since we're moving later in time */
581 /* check the first point, since we're moving earlier in time */
585 tx = cp->get_x() + dx; // new possible position if we just add the motion
586 tx = max (tx, before_x); // can't move later than following point
587 tx = min (tx, after_x); // can't move earlier than preceeding point
588 return tx - cp->get_x ();
592 AutomationLine::ContiguousControlPoints::move (double dx, double dy)
594 for (std::list<ControlPoint*>::iterator i = begin(); i != end(); ++i) {
595 (*i)->move_to ((*i)->get_x() + dx, (*i)->get_y() - line.height() * dy, ControlPoint::Full);
596 line.reset_line_coords (**i);
600 /** Common parts of starting a drag.
601 * @param x Starting x position in units, or 0 if x is being ignored.
602 * @param fraction Starting y position (as a fraction of the track height, where 0 is the bottom and 1 the top)
605 AutomationLine::start_drag_common (double x, float fraction)
609 _last_drag_fraction = fraction;
610 _drag_had_movement = false;
613 /* they are probably ordered already, but we have to make sure */
615 _drag_points.sort (ControlPointSorter());
619 /** Should be called to indicate motion during a drag.
620 * @param x New x position of the drag in canvas units, or undefined if ignore_x == true.
621 * @param fraction New y fraction.
622 * @return x position and y fraction that were actually used (once clamped).
625 AutomationLine::drag_motion (double const x, float fraction, bool ignore_x, bool with_push, uint32_t& final_index)
627 if (_drag_points.empty()) {
628 return pair<double,float> (x,fraction);
631 double dx = ignore_x ? 0 : (x - _drag_x);
632 double dy = fraction - _last_drag_fraction;
634 if (!_drag_had_movement) {
636 /* "first move" ... do some stuff that we don't want to do if
637 no motion ever took place, but need to do before we handle
641 /* partition the points we are dragging into (potentially several)
642 * set(s) of contiguous points. this will not happen with a normal
643 * drag, but if the user does a discontiguous selection, it can.
646 uint32_t expected_view_index = 0;
649 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
650 if (i == _drag_points.begin() || (*i)->view_index() != expected_view_index) {
651 contig.reset (new ContiguousControlPoints (*this));
652 contiguous_points.push_back (contig);
654 contig->push_back (*i);
655 expected_view_index = (*i)->view_index() + 1;
658 if (contiguous_points.back()->empty()) {
659 contiguous_points.pop_back ();
662 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
663 (*ccp)->compute_x_bounds (trackview.editor());
667 /* OK, now on to the stuff related to *this* motion event. First, for
668 * each contiguous range, figure out the maximum x-axis motion we are
669 * allowed (because of neighbouring points that are not moving.
671 * if we are moving forwards with push, we don't need to do this,
672 * since all later points will move too.
675 if (dx < 0 || ((dx > 0) && !with_push)) {
676 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
677 double dxt = (*ccp)->clamp_dx (dx);
678 if (fabs (dxt) < fabs (dx)) {
686 for (list<ControlPoint*>::iterator i = _drag_points.begin(); i != _drag_points.end(); ++i) {
687 double const y = ((_height - (*i)->get_y()) / _height) + dy;
698 /* and now move each section */
700 for (vector<CCP>::iterator ccp = contiguous_points.begin(); ccp != contiguous_points.end(); ++ccp) {
701 (*ccp)->move (dx, dy);
704 final_index = contiguous_points.back()->back()->view_index () + 1;
706 uint32_t i = final_index;
707 while ((p = nth (i)) != 0 && p->can_slide()) {
708 p->move_to (p->get_x() + dx, p->get_y(), ControlPoint::Full);
709 reset_line_coords (*p);
714 /* update actual line coordinates (will queue a redraw)
717 if (line_points.size() > 1) {
718 line->set (line_points);
722 _drag_distance += dx;
724 _last_drag_fraction = fraction;
725 _drag_had_movement = true;
726 did_push = with_push;
728 return pair<double, float> (_drag_x + dx, _last_drag_fraction + dy);
731 /** Should be called to indicate the end of a drag */
733 AutomationLine::end_drag (bool with_push, uint32_t final_index)
735 if (!_drag_had_movement) {
740 sync_model_with_view_points (_drag_points);
744 uint32_t i = final_index;
745 while ((p = nth (i)) != 0 && p->can_slide()) {
746 sync_model_with_view_point (*p);
753 update_pending = false;
755 trackview.editor().session()->add_command (
756 new MementoCommand<AutomationList>(memento_command_binder (), 0, &alist->get_state()));
758 trackview.editor().session()->set_dirty ();
761 contiguous_points.clear ();
765 AutomationLine::sync_model_with_view_point (ControlPoint& cp)
767 /* find out where the visual control point is.
768 initial results are in canvas units. ask the
769 line to convert them to something relevant.
772 double view_x = cp.get_x();
773 double view_y = 1.0 - (cp.get_y() / _height);
775 /* if xval has not changed, set it directly from the model to avoid rounding errors */
777 if (view_x == trackview.editor().sample_to_pixel_unrounded (_time_converter->to ((*cp.model())->when)) - _offset) {
778 view_x = (*cp.model())->when - _offset;
780 view_x = trackview.editor().pixel_to_sample (view_x);
781 view_x = _time_converter->from (view_x + _offset);
784 update_pending = true;
786 view_to_model_coord_y (view_y);
788 alist->modify (cp.model(), view_x, view_y);
792 AutomationLine::control_points_adjacent (double xval, uint32_t & before, uint32_t& after)
794 ControlPoint *bcp = 0;
795 ControlPoint *acp = 0;
798 unit_xval = trackview.editor().sample_to_pixel_unrounded (xval);
800 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
802 if ((*i)->get_x() <= unit_xval) {
804 if (!bcp || (*i)->get_x() > bcp->get_x()) {
806 before = bcp->view_index();
809 } else if ((*i)->get_x() > unit_xval) {
811 after = acp->view_index();
820 AutomationLine::is_last_point (ControlPoint& cp)
822 // If the list is not empty, and the point is the last point in the list
824 if (alist->empty()) {
828 AutomationList::const_iterator i = alist->end();
831 if (cp.model() == i) {
839 AutomationLine::is_first_point (ControlPoint& cp)
841 // If the list is not empty, and the point is the first point in the list
843 if (!alist->empty() && cp.model() == alist->begin()) {
850 // This is copied into AudioRegionGainLine
852 AutomationLine::remove_point (ControlPoint& cp)
854 trackview.editor().session()->begin_reversible_command (_("remove control point"));
855 XMLNode &before = alist->get_state();
857 alist->erase (cp.model());
859 trackview.editor().session()->add_command(
860 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
862 trackview.editor().session()->commit_reversible_command ();
863 trackview.editor().session()->set_dirty ();
866 /** Get selectable points within an area.
867 * @param start Start position in session frames.
868 * @param end End position in session frames.
869 * @param bot Bottom y range, as a fraction of line height, where 0 is the bottom of the line.
870 * @param top Top y range, as a fraction of line height, where 0 is the bottom of the line.
871 * @param result Filled in with selectable things; in this case, ControlPoints.
874 AutomationLine::get_selectables (framepos_t start, framepos_t end, double botfrac, double topfrac, list<Selectable*>& results)
876 /* convert fractions to display coordinates with 0 at the top of the track */
877 double const bot_track = (1 - topfrac) * trackview.current_height ();
878 double const top_track = (1 - botfrac) * trackview.current_height ();
880 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
881 double const model_when = (*(*i)->model())->when;
883 /* model_when is relative to the start of the source, so we just need to add on the origin_b here
884 (as it is the session frame position of the start of the source)
887 framepos_t const session_frames_when = _time_converter->to (model_when) + _time_converter->origin_b ();
889 if (session_frames_when >= start && session_frames_when <= end && (*i)->get_y() >= bot_track && (*i)->get_y() <= top_track) {
890 results.push_back (*i);
896 AutomationLine::get_inverted_selectables (Selection&, list<Selectable*>& /*results*/)
902 AutomationLine::set_selected_points (PointSelection const & points)
904 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
905 (*i)->set_selected (false);
908 for (PointSelection::const_iterator i = points.begin(); i != points.end(); ++i) {
909 (*i)->set_selected (true);
915 void AutomationLine::set_colors ()
917 set_line_color (ARDOUR_UI::config()->get_canvasvar_AutomationLine());
918 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
924 AutomationLine::list_changed ()
926 DEBUG_TRACE (DEBUG::Automation, string_compose ("\tline changed, existing update pending? %1\n", update_pending));
928 if (!update_pending) {
929 update_pending = true;
930 Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&AutomationLine::queue_reset, this));
935 AutomationLine::reset_callback (const Evoral::ControlList& events)
941 if (events.empty()) {
942 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
945 control_points.clear ();
950 /* hide all existing points, and the line */
952 for (vector<ControlPoint*>::iterator i = control_points.begin(); i != control_points.end(); ++i) {
959 Evoral::ControlList& e = const_cast<Evoral::ControlList&> (events);
961 for (AutomationList::iterator ai = e.begin(); ai != e.end(); ++ai, ++pi) {
963 double tx = (*ai)->when;
964 double ty = (*ai)->value;
966 /* convert from model coordinates to canonical view coordinates */
968 model_to_view_coord (tx, ty);
970 if (isnan (tx) || isnan (ty)) {
971 warning << string_compose (_("Ignoring illegal points on AutomationLine \"%1\""),
976 if (tx >= max_framepos || tx < 0 || tx >= _maximum_time) {
980 /* convert x-coordinate to a canvas unit coordinate (this takes
981 * zoom and scroll into account).
984 tx = trackview.editor().sample_to_pixel_unrounded (tx);
986 /* convert from canonical view height (0..1.0) to actual
987 * height coordinates (using X11's top-left rooted system)
990 ty = _height - (ty * _height);
992 add_visible_control_point (vp, pi, tx, ty, ai, np);
996 /* discard extra CP's to avoid confusing ourselves */
998 while (control_points.size() > vp) {
999 ControlPoint* cp = control_points.back();
1000 control_points.pop_back ();
1004 if (!terminal_points_can_slide) {
1005 control_points.back()->set_can_slide(false);
1010 /* reset the line coordinates given to the CanvasLine */
1012 while (line_points.size() < vp) {
1013 line_points.push_back (ArdourCanvas::Duple (0,0));
1016 while (line_points.size() > vp) {
1017 line_points.pop_back ();
1020 for (uint32_t n = 0; n < vp; ++n) {
1021 line_points[n].x = control_points[n]->get_x();
1022 line_points[n].y = control_points[n]->get_y();
1025 line->set (line_points);
1027 update_visibility ();
1030 set_selected_points (trackview.editor().get_selection().points);
1034 AutomationLine::reset ()
1036 DEBUG_TRACE (DEBUG::Automation, "\t\tLINE RESET\n");
1037 update_pending = false;
1038 have_timeout = false;
1044 alist->apply_to_points (*this, &AutomationLine::reset_callback);
1048 AutomationLine::queue_reset ()
1050 /* this must be called from the GUI thread
1053 if (trackview.editor().session()->transport_rolling() && alist->automation_write()) {
1054 /* automation write pass ... defer to a timeout */
1055 /* redraw in 1/4 second */
1056 if (!have_timeout) {
1057 DEBUG_TRACE (DEBUG::Automation, "\tqueue timeout\n");
1058 Glib::signal_timeout().connect (sigc::bind_return (sigc::mem_fun (*this, &AutomationLine::reset), false), 250);
1059 have_timeout = true;
1061 DEBUG_TRACE (DEBUG::Automation, "\ttimeout already queued, change ignored\n");
1069 AutomationLine::clear ()
1071 /* parent must create and commit command */
1072 XMLNode &before = alist->get_state();
1075 trackview.editor().session()->add_command (
1076 new MementoCommand<AutomationList> (memento_command_binder (), &before, &alist->get_state()));
1080 AutomationLine::change_model (AutomationList::iterator /*i*/, double /*x*/, double /*y*/)
1085 AutomationLine::set_list (boost::shared_ptr<ARDOUR::AutomationList> list)
1093 AutomationLine::add_visibility (VisibleAspects va)
1095 VisibleAspects old = _visible;
1097 _visible = VisibleAspects (_visible | va);
1099 if (old != _visible) {
1100 update_visibility ();
1105 AutomationLine::set_visibility (VisibleAspects va)
1107 if (_visible != va) {
1109 update_visibility ();
1114 AutomationLine::remove_visibility (VisibleAspects va)
1116 VisibleAspects old = _visible;
1118 _visible = VisibleAspects (_visible & ~va);
1120 if (old != _visible) {
1121 update_visibility ();
1126 AutomationLine::track_entered()
1128 if (alist->interpolation() != AutomationList::Discrete) {
1129 add_visibility (ControlPoints);
1134 AutomationLine::track_exited()
1136 if (alist->interpolation() != AutomationList::Discrete) {
1137 remove_visibility (ControlPoints);
1142 AutomationLine::get_state (void)
1144 /* function as a proxy for the model */
1145 return alist->get_state();
1149 AutomationLine::set_state (const XMLNode &node, int version)
1151 /* function as a proxy for the model */
1152 return alist->set_state (node, version);
1156 AutomationLine::view_to_model_coord (double& x, double& y) const
1158 x = _time_converter->from (x);
1159 view_to_model_coord_y (y);
1163 AutomationLine::view_to_model_coord_y (double& y) const
1165 /* TODO: This should be more generic ... */
1166 if (alist->parameter().type() == GainAutomation ||
1167 alist->parameter().type() == EnvelopeAutomation) {
1168 y = slider_position_to_gain_with_max (y, Config->get_max_gain());
1171 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1172 alist->parameter().type() == PanElevationAutomation) {
1174 } else if (alist->parameter().type() == PanWidthAutomation) {
1176 } else if (alist->parameter().type() == PluginAutomation) {
1177 y = y * (double)(alist->get_max_y()- alist->get_min_y()) + alist->get_min_y();
1179 y = rint (y * alist->parameter().max());
1184 AutomationLine::model_to_view_coord (double& x, double& y) const
1186 /* TODO: This should be more generic ... */
1187 if (alist->parameter().type() == GainAutomation ||
1188 alist->parameter().type() == EnvelopeAutomation) {
1189 y = gain_to_slider_position_with_max (y, Config->get_max_gain());
1190 } else if (alist->parameter().type() == PanAzimuthAutomation ||
1191 alist->parameter().type() == PanElevationAutomation) {
1193 } else if (alist->parameter().type() == PanWidthAutomation) {
1195 } else if (alist->parameter().type() == PluginAutomation) {
1196 y = (y - alist->get_min_y()) / (double)(alist->get_max_y()- alist->get_min_y());
1198 y = y / (double)alist->parameter().max(); /* ... like this */
1201 x = _time_converter->to (x) - _offset;
1204 /** Called when our list has announced that its interpolation style has changed */
1206 AutomationLine::interpolation_changed (AutomationList::InterpolationStyle style)
1208 if (style == AutomationList::Discrete) {
1209 set_visibility (ControlPoints);
1212 set_visibility (Line);
1217 AutomationLine::add_visible_control_point (uint32_t view_index, uint32_t pi, double tx, double ty,
1218 AutomationList::iterator model, uint32_t npoints)
1220 ControlPoint::ShapeType shape;
1222 if (view_index >= control_points.size()) {
1224 /* make sure we have enough control points */
1226 ControlPoint* ncp = new ControlPoint (*this);
1227 ncp->set_size (control_point_box_size ());
1229 control_points.push_back (ncp);
1232 if (!terminal_points_can_slide) {
1234 control_points[view_index]->set_can_slide (false);
1236 shape = ControlPoint::Start;
1238 shape = ControlPoint::Full;
1240 } else if (pi == npoints - 1) {
1241 control_points[view_index]->set_can_slide (false);
1242 shape = ControlPoint::End;
1244 control_points[view_index]->set_can_slide (true);
1245 shape = ControlPoint::Full;
1248 control_points[view_index]->set_can_slide (true);
1249 shape = ControlPoint::Full;
1252 control_points[view_index]->reset (tx, ty, model, view_index, shape);
1254 /* finally, control visibility */
1256 if (_visible & ControlPoints) {
1257 control_points[view_index]->show ();
1259 control_points[view_index]->hide ();
1264 AutomationLine::connect_to_list ()
1266 _list_connections.drop_connections ();
1268 alist->StateChanged.connect (_list_connections, invalidator (*this), boost::bind (&AutomationLine::list_changed, this), gui_context());
1270 alist->InterpolationChanged.connect (
1271 _list_connections, invalidator (*this), boost::bind (&AutomationLine::interpolation_changed, this, _1), gui_context());
1274 MementoCommandBinder<AutomationList>*
1275 AutomationLine::memento_command_binder ()
1277 return new SimpleMementoCommandBinder<AutomationList> (*alist.get());
1280 /** Set the maximum time that points on this line can be at, relative
1281 * to the start of the track or region that it is on.
1284 AutomationLine::set_maximum_time (framecnt_t t)
1286 if (_maximum_time == t) {
1295 /** @return min and max x positions of points that are in the list, in session frames */
1296 pair<framepos_t, framepos_t>
1297 AutomationLine::get_point_x_range () const
1299 pair<framepos_t, framepos_t> r (max_framepos, 0);
1301 for (AutomationList::const_iterator i = the_list()->begin(); i != the_list()->end(); ++i) {
1302 r.first = min (r.first, session_position (i));
1303 r.second = max (r.second, session_position (i));
1310 AutomationLine::session_position (AutomationList::const_iterator p) const
1312 return _time_converter->to ((*p)->when) + _offset + _time_converter->origin_b ();
1316 AutomationLine::set_offset (framepos_t off)
1318 if (_offset == off) {