386 lines
11 KiB
C++
386 lines
11 KiB
C++
/*
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* Copyright (C) 2022 Paul Davis <paul@linuxaudiosystems.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <utility>
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#include "pbd/memento_command.h"
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#include "ardour/automation_control.h"
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#include "ardour/event_type_map.h"
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#include "ardour/midi_automation_list_binder.h"
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#include "ardour/midi_region.h"
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#include "ardour/midi_track.h"
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#include "ardour/session.h"
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#include "gtkmm2ext/keyboard.h"
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#include "gtkmm2ext/utils.h"
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#include "canvas/lollipop.h"
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#include "velocity_ghost_region.h"
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#include "editing.h"
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#include "editor.h"
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#include "editor_drag.h"
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#include "gui_thread.h"
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#include "midi_automation_line.h"
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#include "midi_region_view.h"
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#include "note_base.h"
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#include "public_editor.h"
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#include "ui_config.h"
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#include "verbose_cursor.h"
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#include "pbd/i18n.h"
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using namespace Temporal;
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static double const lollipop_radius = 8.0;
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VelocityGhostRegion::VelocityGhostRegion (MidiRegionView& mrv, TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
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: MidiGhostRegion (mrv, tv, source_tv, initial_unit_pos)
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, dragging (false)
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, dragging_line (nullptr)
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, last_drag_x (-1)
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, drag_did_change (false)
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, selected (false)
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{
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base_rect->Event.connect (sigc::mem_fun (*this, &VelocityGhostRegion::base_event));
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base_rect->set_fill_color (UIConfiguration::instance().color_mod ("ghost track base", "ghost track midi fill"));
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base_rect->set_outline_color (UIConfiguration::instance().color ("automation track outline"));
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base_rect->set_outline (true);
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base_rect->set_outline_what (ArdourCanvas::Rectangle::What (ArdourCanvas::Rectangle::LEFT|ArdourCanvas::Rectangle::RIGHT));
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}
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VelocityGhostRegion::~VelocityGhostRegion ()
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{
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}
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bool
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VelocityGhostRegion::base_event (GdkEvent* ev)
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{
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std::vector<NoteBase*> affected_lollis;
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MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (&parent_rv);
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ArdourCanvas::Rect r = base_rect->item_to_canvas (base_rect->get());
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switch (ev->type) {
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case GDK_MOTION_NOTIFY:
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if (dragging) {
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if (last_drag_x < 0) {
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lollis_close_to_x (ev->motion.x, 20., affected_lollis);
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} else if (last_drag_x < ev->motion.x) {
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/* rightward, "later" motion */
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lollis_between (last_drag_x, ev->motion.x, affected_lollis);
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} else {
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/* leftward, "earlier" motion */
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lollis_between (ev->motion.x, last_drag_x, affected_lollis);
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}
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if (!affected_lollis.empty()) {
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int velocity = y_position_to_velocity (r.height() - (r.y1 - ev->motion.y));
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drag_did_change |= mrv->set_velocity_for_notes (affected_lollis, velocity);
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mrv->mid_drag_edit ();
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}
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if (dragging) {
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dragging_line->add_point (ArdourCanvas::Duple (ev->motion.x - r.x0, ev->motion.y - r.y0));
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last_drag_x = ev->motion.x;
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}
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return true;
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}
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break;
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case GDK_BUTTON_PRESS:
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if (ev->button.button == 1) {
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assert (!dragging);
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desensitize_lollis ();
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dragging = true;
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drag_did_change = false;
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last_drag_x = -1;
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if (!dragging_line) {
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dragging_line = new ArdourCanvas::PolyLine (_note_group);
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dragging_line->set_ignore_events (true);
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dragging_line->set_outline_color (UIConfiguration::instance().color ("midi note selected outline"));
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}
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dragging_line->set (ArdourCanvas::Points());
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dragging_line->show();
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dragging_line->raise_to_top();
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base_rect->grab();
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mrv->begin_drag_edit (_("draw velocities"));
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return true;
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}
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break;
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case GDK_BUTTON_RELEASE:
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if (ev->button.button == 1 && dragging) {
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mrv->end_drag_edit (drag_did_change);
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base_rect->ungrab();
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dragging_line->hide ();
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dragging = false;
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sensitize_lollis ();
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return true;
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}
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break;
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default:
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// std::cerr << "vgr event type " << Gtkmm2ext::event_type_string (ev->type) << std::endl;
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break;
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}
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return false;
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}
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void
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VelocityGhostRegion::update_contents_height ()
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{
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for (auto const & i : events) {
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set_size_and_position (*i.second);
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}
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}
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bool
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VelocityGhostRegion::lollevent (GdkEvent* ev, MidiGhostRegion::GhostEvent* gev)
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{
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return trackview.editor().canvas_velocity_event (ev, gev->item);
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}
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void
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VelocityGhostRegion::add_note (NoteBase* nb)
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{
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ArdourCanvas::Lollipop* l = new ArdourCanvas::Lollipop (_note_group);
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l->set_bounding_parent (base_rect);
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GhostEvent* event = new GhostEvent (nb, _note_group, l);
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events.insert (std::make_pair (nb->note(), event));
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l->Event.connect (sigc::bind (sigc::mem_fun (*this, &VelocityGhostRegion::lollevent), event));
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l->set_ignore_events (true);
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l->raise_to_top ();
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l->set_data (X_("ghostregionview"), this);
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l->set_data (X_("note"), nb);
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l->set_fill_color (nb->base_color());
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l->set_outline_color (_outline);
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MidiStreamView* mv = midi_view();
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if (mv) {
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if (!nb->item()->visible()) {
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l->hide();
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} else {
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set_size_and_position (*event);
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}
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}
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}
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void
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VelocityGhostRegion::set_size_and_position (GhostEvent& ev)
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{
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ArdourCanvas::Lollipop* l = dynamic_cast<ArdourCanvas::Lollipop*> (ev.item);
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const double available_height = base_rect->y1();
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const double actual_height = (ev.event->note()->velocity() / 127.0) * available_height;
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l->set (ArdourCanvas::Duple (ev.event->x0() - 1.0, base_rect->y1() - actual_height), actual_height, lollipop_radius);
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}
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void
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VelocityGhostRegion::update_note (GhostEvent* gev)
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{
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set_size_and_position (*gev);
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gev->item->set_fill_color (gev->event->base_color());
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}
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void
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VelocityGhostRegion::update_hit (GhostEvent* gev)
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{
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set_size_and_position (*gev);
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gev->item->set_fill_color (gev->event->base_color());
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}
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void
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VelocityGhostRegion::remove_note (NoteBase* nb)
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{
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MidiGhostRegion::remove_note (nb);
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}
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void
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VelocityGhostRegion::set_colors ()
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{
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if (selected) {
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base_rect->set_fill_color (UIConfiguration::instance().color ("ghost track base"));
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} else {
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base_rect->set_fill_color (UIConfiguration::instance().color_mod ("ghost track base", "ghost track midi fill"));
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}
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for (auto & gev : events) {
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gev.second->item->set_fill_color (gev.second->event->base_color());
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}
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}
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void
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VelocityGhostRegion::drag_lolli (ArdourCanvas::Lollipop* l, GdkEventMotion* ev)
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{
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ArdourCanvas::Rect r (base_rect->item_to_canvas (base_rect->get()));
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/* translate event y-coord so that zero matches the top of base_rect
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* (event coordinates use window coordinate space)
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*/
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ev->y -= r.y0;
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/* clamp y to be within the range defined by the base_rect height minus
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* the lollipop radius at top and bottom
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*/
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const double effective_y = std::max (0.0, std::min (r.height(), ev->y));
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const double newlen = r.height() - effective_y;
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const double delta = newlen - l->length();
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MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (&parent_rv);
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assert (mrv);
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/* This will redraw the velocity bars for the selected notes, without
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* changing the note velocities.
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*/
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const double factor = newlen / base_rect->height();
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mrv->sync_velocity_drag (factor);
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MidiRegionView::Selection const & sel (mrv->selection());
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int verbose_velocity = -1;
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GhostEvent* primary_ghost = 0;
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for (auto & s : sel) {
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GhostEvent* x = find_event (s->note());
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if (x) {
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ArdourCanvas::Lollipop* lolli = dynamic_cast<ArdourCanvas::Lollipop*> (x->item);
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lolli->set (ArdourCanvas::Duple (lolli->x(), lolli->y0() - delta), lolli->length() + delta, lollipop_radius);
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/* note: length is now set to the new value */
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const int newvel = floor (127. * (l->length() / r.height()));
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/* since we're not actually changing the note velocity
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(yet), we have to use the static method to compute
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the color.
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*/
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lolli->set_fill_color (NoteBase::base_color (newvel, mrv->color_mode(), mrv->midi_stream_view()->get_region_color(), x->event->note()->channel(), true));
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if (l == lolli) {
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/* This is the value we will display */
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verbose_velocity = newvel;
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primary_ghost = x;
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}
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}
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}
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assert (verbose_velocity >= 0);
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char buf[128];
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const int oldvel = primary_ghost->event->note()->velocity();
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if (verbose_velocity > oldvel) {
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snprintf (buf, sizeof (buf), "Velocity %d (+%d)", verbose_velocity, verbose_velocity - oldvel);
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} else if (verbose_velocity == oldvel) {
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snprintf (buf, sizeof (buf), "Velocity %d", verbose_velocity);
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} else {
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snprintf (buf, sizeof (buf), "Velocity %d (%d)", verbose_velocity, verbose_velocity - oldvel);
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}
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trackview.editor().verbose_cursor()->set (buf);
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trackview.editor().verbose_cursor()->show ();
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trackview.editor().verbose_cursor()->set_offset (ArdourCanvas::Duple (10., 10.));
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}
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int
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VelocityGhostRegion::y_position_to_velocity (double y) const
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{
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const ArdourCanvas::Rect r (base_rect->get());
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int velocity;
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if (y >= r.height()) {
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velocity = 0;
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} else if (y <= 0.) {
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velocity = 127;
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} else {
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velocity = floor (127. * (1.0 - (y / r.height())));
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}
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return velocity;
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}
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void
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VelocityGhostRegion::note_selected (NoteBase* ev)
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{
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GhostEvent* gev = find_event (ev->note());
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if (!gev) {
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return;
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}
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ArdourCanvas::Lollipop* lolli = dynamic_cast<ArdourCanvas::Lollipop*> (gev->item);
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lolli->set_outline_color (ev->selected() ? UIConfiguration::instance().color ("midi note selected outline") : 0x000000ff);
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lolli->raise_to_top();
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}
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void
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VelocityGhostRegion::lollis_between (int x0, int x1, std::vector<NoteBase*>& within)
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{
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for (auto & gev : events) {
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ArdourCanvas::Lollipop* l = dynamic_cast<ArdourCanvas::Lollipop*> (gev.second->item);
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if (l) {
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ArdourCanvas::Duple pos = l->item_to_canvas (ArdourCanvas::Duple (l->x(), l->y0()));
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if (pos.x >= x0 && pos.x < x1) {
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within.push_back (gev.second->event);
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}
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}
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}
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}
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void
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VelocityGhostRegion::lollis_close_to_x (int x, double distance, std::vector<NoteBase*>& within)
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{
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for (auto & gev : events) {
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ArdourCanvas::Lollipop* l = dynamic_cast<ArdourCanvas::Lollipop*> (gev.second->item);
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if (l) {
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ArdourCanvas::Duple pos = l->item_to_canvas (ArdourCanvas::Duple (l->x(), l->y0()));
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if (std::abs (pos.x - x) < distance) {
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within.push_back (gev.second->event);
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}
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}
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}
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}
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void
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VelocityGhostRegion::desensitize_lollis ()
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{
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for (auto & gev : events) {
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gev.second->item->set_ignore_events (true);
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}
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}
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void
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VelocityGhostRegion::sensitize_lollis ()
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{
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for (auto & gev : events) {
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gev.second->item->set_ignore_events (false);
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}
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}
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void
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VelocityGhostRegion::set_selected (bool yn)
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{
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selected = yn;
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set_colors ();
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if (yn) {
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group->raise_to_top ();
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}
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}
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