13
0
livetrax/gtk2_ardour/midi_region_view.cc
David Robillard 1b65758557 Committed underlay support (from Audun).
git-svn-id: svn://localhost/ardour2/branches/3.0@3037 d708f5d6-7413-0410-9779-e7cbd77b26cf
2008-02-10 18:16:25 +00:00

862 lines
22 KiB
C++

/*
Copyright (C) 2001-2007 Paul Davis
Author: Dave Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <cmath>
#include <cassert>
#include <algorithm>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <sigc++/signal.h>
#include <ardour/playlist.h>
#include <ardour/tempo.h>
#include <ardour/midi_region.h>
#include <ardour/midi_source.h>
#include <ardour/midi_diskstream.h>
#include <ardour/midi_events.h>
#include <ardour/midi_model.h>
#include "streamview.h"
#include "midi_region_view.h"
#include "midi_streamview.h"
#include "midi_time_axis.h"
#include "simplerect.h"
#include "simpleline.h"
#include "canvas-hit.h"
#include "public_editor.h"
#include "ghostregion.h"
#include "midi_time_axis.h"
#include "automation_time_axis.h"
#include "automation_region_view.h"
#include "utils.h"
#include "midi_util.h"
#include "gui_thread.h"
#include "keyboard.h"
#include "i18n.h"
using namespace sigc;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
using namespace ArdourCanvas;
MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color)
: RegionView (parent, tv, r, spu, basic_color)
, _default_note_length(0.0)
, _active_notes(0)
, _note_group(new ArdourCanvas::Group(*parent))
, _delta_command(NULL)
, _mouse_state(None)
, _pressed_button(0)
{
group->lower_to_bottom();
_note_group->raise_to_top();
frame->property_fill_color_rgba() = 0xff000033;
}
MidiRegionView::MidiRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, boost::shared_ptr<MidiRegion> r, double spu, Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility)
: RegionView (parent, tv, r, spu, basic_color, visibility)
, _default_note_length(0.0)
, _active_notes(0)
, _note_group(new ArdourCanvas::Group(*parent))
, _delta_command(NULL)
, _mouse_state(None)
, _pressed_button(0)
{
_note_group->raise_to_top();
}
void
MidiRegionView::init (Gdk::Color& basic_color, bool wfd)
{
if (wfd)
midi_region()->midi_source(0)->load_model();
const Meter& m = trackview.session().tempo_map().meter_at(_region->position());
const Tempo& t = trackview.session().tempo_map().tempo_at(_region->position());
_default_note_length = m.frames_per_bar(t, trackview.session().frame_rate())
/ m.beats_per_bar();
_model = midi_region()->midi_source(0)->model();
_enable_display = false;
RegionView::init(basic_color, false);
compute_colors (basic_color);
reset_width_dependent_items ((double) _region->length() / samples_per_unit);
set_y_position_and_height (0, trackview.height);
region_muted ();
region_resized (BoundsChanged);
region_locked ();
_region->StateChanged.connect (mem_fun(*this, &MidiRegionView::region_changed));
set_colors ();
_enable_display = true;
if (_model) {
if (wfd) {
redisplay_model();
}
_model->ContentsChanged.connect(sigc::mem_fun(this, &MidiRegionView::redisplay_model));
}
midi_region()->midi_source(0)->Switched.connect(sigc::mem_fun(this, &MidiRegionView::switch_source));
group->signal_event().connect (mem_fun (this, &MidiRegionView::canvas_event), false);
}
bool
MidiRegionView::canvas_event(GdkEvent* ev)
{
static bool delete_mod = false;
static Editing::MidiEditMode original_mode;
static double drag_start_x, drag_start_y;
static double last_x, last_y;
double event_x, event_y;
nframes_t event_frame = 0;
static ArdourCanvas::SimpleRect* drag_rect = NULL;
if (trackview.editor.current_mouse_mode() != MouseNote)
return false;
// Mmmm, spaghetti
switch (ev->type) {
case GDK_KEY_PRESS:
if (ev->key.keyval == GDK_Delete && !delete_mod) {
delete_mod = true;
original_mode = trackview.editor.current_midi_edit_mode();
trackview.editor.set_midi_edit_mode(MidiEditErase);
start_remove_command();
_mouse_state = EraseTouchDragging;
} else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
_mouse_state = SelectTouchDragging;
}
return true;
case GDK_KEY_RELEASE:
if (ev->key.keyval == GDK_Delete) {
if (_mouse_state == EraseTouchDragging) {
delete_selection();
apply_command();
}
if (delete_mod) {
trackview.editor.set_midi_edit_mode(original_mode);
delete_mod = false;
}
} else if (ev->key.keyval == GDK_Shift_L || ev->key.keyval == GDK_Control_L) {
_mouse_state = None;
}
return true;
case GDK_BUTTON_PRESS:
if (_mouse_state != SelectTouchDragging && _mouse_state != EraseTouchDragging)
_mouse_state = Pressed;
_pressed_button = ev->button.button;
return true;
case GDK_ENTER_NOTIFY:
/* FIXME: do this on switch to note tool, too, if the pointer is already in */
Keyboard::magic_widget_grab_focus();
group->grab_focus();
break;
case GDK_MOTION_NOTIFY:
event_x = ev->motion.x;
event_y = ev->motion.y;
group->w2i(event_x, event_y);
event_frame = trackview.editor.pixel_to_frame(event_x);
trackview.editor.snap_to(event_frame);
switch (_mouse_state) {
case Pressed: // Drag start
// Select drag start
if (_pressed_button == 1 && trackview.editor.current_midi_edit_mode() == MidiEditSelect) {
group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
last_x = event_x;
last_y = event_y;
drag_start_x = event_x;
drag_start_y = event_y;
drag_rect = new ArdourCanvas::SimpleRect(*group);
drag_rect->property_x1() = event_x;
drag_rect->property_y1() = event_y;
drag_rect->property_x2() = event_x;
drag_rect->property_y2() = event_y;
drag_rect->property_outline_what() = 0xFF;
drag_rect->property_outline_color_rgba()
= ARDOUR_UI::config()->canvasvar_MidiSelectRectOutline.get();
drag_rect->property_fill_color_rgba()
= ARDOUR_UI::config()->canvasvar_MidiSelectRectFill.get();
_mouse_state = SelectRectDragging;
return true;
// Add note drag start
} else if (trackview.editor.current_midi_edit_mode() == MidiEditPencil) {
group->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
last_x = event_x;
last_y = event_y;
drag_start_x = event_x;
drag_start_y = event_y;
drag_rect = new ArdourCanvas::SimpleRect(*group);
drag_rect->property_x1() = trackview.editor.frame_to_pixel(event_frame);
drag_rect->property_y1() = midi_stream_view()->note_to_y(midi_stream_view()->y_to_note(event_y));
drag_rect->property_x2() = event_x;
drag_rect->property_y2() = drag_rect->property_y1() + floor(midi_stream_view()->note_height());
drag_rect->property_outline_what() = 0xFF;
drag_rect->property_outline_color_rgba() = 0xFFFFFF99;
drag_rect->property_fill_color_rgba() = 0xFFFFFF66;
_mouse_state = AddDragging;
return true;
}
return false;
case SelectRectDragging: // Select drag motion
case AddDragging: // Add note drag motion
if (ev->motion.is_hint) {
int t_x;
int t_y;
GdkModifierType state;
gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
event_x = t_x;
event_y = t_y;
}
if (_mouse_state == AddDragging)
event_x = trackview.editor.frame_to_pixel(event_frame);
if (drag_rect)
if (event_x > drag_start_x)
drag_rect->property_x2() = event_x;
else
drag_rect->property_x1() = event_x;
if (drag_rect && _mouse_state == SelectRectDragging) {
if (event_y > drag_start_y)
drag_rect->property_y2() = event_y;
else
drag_rect->property_y1() = event_y;
update_drag_selection(drag_start_x, event_x, drag_start_y, event_y);
}
last_x = event_x;
last_y = event_y;
case EraseTouchDragging:
case SelectTouchDragging:
return false;
default:
break;
}
break;
case GDK_BUTTON_RELEASE:
event_x = ev->motion.x;
event_y = ev->motion.y;
group->w2i(event_x, event_y);
group->ungrab(ev->button.time);
event_frame = trackview.editor.pixel_to_frame(event_x);
switch (_mouse_state) {
case Pressed: // Clicked
switch (trackview.editor.current_midi_edit_mode()) {
case MidiEditSelect:
clear_selection();
break;
case MidiEditPencil:
trackview.editor.snap_to(event_frame, -1);
event_x = trackview.editor.frame_to_pixel(event_frame);
create_note_at(event_x, event_y, _default_note_length);
default:
break;
}
_mouse_state = None;
return true;
case SelectRectDragging: // Select drag done
_mouse_state = None;
delete drag_rect;
drag_rect = NULL;
return true;
case AddDragging: // Add drag done
_mouse_state = None;
if (drag_rect->property_x2() > drag_rect->property_x1() + 2) {
create_note_at(drag_rect->property_x1(), drag_rect->property_y1(),
trackview.editor.pixel_to_frame(
drag_rect->property_x2() - drag_rect->property_x1()));
}
delete drag_rect;
drag_rect = NULL;
return true;
default:
break;
}
default:
break;
}
return false;
}
/** Add a note to the model, and the view, at a canvas (click) coordinate */
void
MidiRegionView::create_note_at(double x, double y, double dur)
{
MidiTimeAxisView* const mtv = dynamic_cast<MidiTimeAxisView*>(&trackview);
MidiStreamView* const view = mtv->midi_view();
double note = midi_stream_view()->y_to_note(y);
assert(note >= 0.0);
assert(note <= 127.0);
const nframes_t stamp = trackview.editor.pixel_to_frame (x);
assert(stamp >= 0);
//assert(stamp <= _region->length());
//const Meter& m = trackview.session().tempo_map().meter_at(stamp);
//const Tempo& t = trackview.session().tempo_map().tempo_at(stamp);
//double dur = m.frames_per_bar(t, trackview.session().frame_rate()) / m.beats_per_bar();
// Add a 1 beat long note (for now)
const boost::shared_ptr<Note> new_note(new Note(stamp, dur, (uint8_t)note, 0x40));
view->update_bounds(new_note->note());
MidiModel::DeltaCommand* cmd = _model->new_delta_command("add note");
cmd->add(new_note);
_model->apply_command(cmd);
//add_note(new_note);
}
void
MidiRegionView::clear_events()
{
for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i)
delete *i;
MidiGhostRegion* gr;
for(vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
if((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
gr->clear_events();
}
}
_events.clear();
}
void
MidiRegionView::display_model(boost::shared_ptr<MidiModel> model)
{
_model = model;
if (_enable_display)
redisplay_model();
}
void
MidiRegionView::redisplay_model()
{
// Don't redisplay the model if we're currently recording and displaying that
if (_active_notes)
return;
if (_model) {
clear_events();
begin_write();
_model->read_lock();
for (size_t i=0; i < _model->n_notes(); ++i)
add_note(_model->note_at(i));
end_write();
/*for (Automatable::Controls::const_iterator i = _model->controls().begin();
i != _model->controls().end(); ++i) {
assert(i->second);
boost::shared_ptr<AutomationTimeAxisView> at
= midi_view()->automation_child(i->second->parameter());
if (!at)
continue;
Gdk::Color col = midi_stream_view()->get_region_color();
boost::shared_ptr<AutomationRegionView> arv;
{
Glib::Mutex::Lock list_lock (i->second->list()->lock());
arv = boost::shared_ptr<AutomationRegionView>(
new AutomationRegionView(at->canvas_display,
*at.get(), _region, i->second->list(),
midi_stream_view()->get_samples_per_unit(), col));
}
arv->set_duration(_region->length(), this);
arv->init(col, true);
_automation_children.insert(std::make_pair(i->second->parameter(), arv));
}*/
_model->read_unlock();
} else {
cerr << "MidiRegionView::redisplay_model called without a model" << endmsg;
}
}
MidiRegionView::~MidiRegionView ()
{
in_destructor = true;
if (_active_notes)
end_write();
clear_events();
RegionViewGoingAway (this); /* EMIT_SIGNAL */
}
void
MidiRegionView::region_resized (Change what_changed)
{
RegionView::region_resized(what_changed);
if (what_changed & ARDOUR::PositionChanged) {
if (_enable_display)
redisplay_model();
} else if (what_changed & Change (StartChanged)) {
//cerr << "MIDI RV START CHANGED" << endl;
} else if (what_changed & Change (LengthChanged)) {
//cerr << "MIDI RV LENGTH CHANGED" << endl;
}
}
void
MidiRegionView::reset_width_dependent_items (double pixel_width)
{
RegionView::reset_width_dependent_items(pixel_width);
assert(_pixel_width == pixel_width);
if (_enable_display)
redisplay_model();
}
void
MidiRegionView::set_y_position_and_height (double y, double h)
{
RegionView::set_y_position_and_height(y, h - 1);
if (_enable_display) {
_model->read_lock();
for (std::vector<CanvasMidiEvent*>::const_iterator i = _events.begin(); i != _events.end(); ++i) {
CanvasNote* note = dynamic_cast<CanvasNote*>(*i);
if (note && note->note()) {
if(note->note()->note() < midi_stream_view()->lowest_note() ||
note->note()->note() > midi_stream_view()->highest_note()) {
if(canvas_item_visible(note)) {
note->hide();
}
}
else {
const double y1 = midi_stream_view()->note_to_y(note->note()->note());
const double y2 = y1 + floor(midi_stream_view()->note_height());
if(!canvas_item_visible(note)) {
note->show();
}
note->property_y1() = y1;
note->property_y2() = y2;
}
}
}
_model->read_unlock();
}
if (name_text) {
name_text->raise_to_top();
}
}
GhostRegion*
MidiRegionView::add_ghost (TimeAxisView& tv)
{
RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&trackview);
CanvasNote* note;
assert(rtv);
double unit_position = _region->position () / samples_per_unit;
MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&tv);
MidiGhostRegion* ghost;
if(mtv && mtv->midi_view()) {
/* if ghost is inserted into midi track, use a dedicated midi ghost canvas group.
this is because it's nice to have midi notes on top of the note lines and
audio waveforms under it.
*/
ghost = new MidiGhostRegion (*mtv->midi_view(), trackview, unit_position);
}
else {
ghost = new MidiGhostRegion (tv, trackview, unit_position);
}
ghost->set_height ();
ghost->set_duration (_region->length() / samples_per_unit);
ghosts.push_back (ghost);
for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
if((note = dynamic_cast<CanvasNote*>(*i)) != 0) {
ghost->add_note(note);
}
}
ghost->GoingAway.connect (mem_fun(*this, &MidiRegionView::remove_ghost));
return ghost;
}
/** Begin tracking note state for successive calls to add_event
*/
void
MidiRegionView::begin_write()
{
assert(!_active_notes);
_active_notes = new CanvasNote*[128];
for (unsigned i=0; i < 128; ++i)
_active_notes[i] = NULL;
}
/** Destroy note state for add_event
*/
void
MidiRegionView::end_write()
{
delete[] _active_notes;
_active_notes = NULL;
}
/** Resolve an active MIDI note (while recording).
*/
void
MidiRegionView::resolve_note(uint8_t note, double end_time)
{
if (midi_view()->note_mode() != Sustained)
return;
if (_active_notes && _active_notes[note]) {
_active_notes[note]->property_x2() = trackview.editor.frame_to_pixel((nframes_t)end_time);
_active_notes[note]->property_outline_what() = (guint32) 0xF; // all edges
_active_notes[note] = NULL;
}
}
/** Extend active notes to rightmost edge of region (if length is changed)
*/
void
MidiRegionView::extend_active_notes()
{
if (!_active_notes)
return;
for (unsigned i=0; i < 128; ++i)
if (_active_notes[i])
_active_notes[i]->property_x2() = trackview.editor.frame_to_pixel(_region->length());
}
/** Add a MIDI note to the view (with duration).
*
* If in sustained mode, notes with duration 0 will be considered active
* notes, and resolve_note should be called when the corresponding note off
* event arrives, to properly display the note.
*/
void
MidiRegionView::add_note(const boost::shared_ptr<Note> note)
{
assert(note->time() >= 0);
//assert(note->time() < _region->length());
assert(midi_view()->note_mode() == Sustained || midi_view()->note_mode() == Percussive);
ArdourCanvas::Group* const group = (ArdourCanvas::Group*)get_canvas_group();
if (midi_view()->note_mode() == Sustained) {
//cerr << "MRV::add_note sustained " << note->note() << " @ " << note->time()
// << " .. " << note->end_time() << endl;
const double y1 = midi_stream_view()->note_to_y(note->note());
CanvasNote* ev_rect = new CanvasNote(*this, *group, note);
ev_rect->property_x1() = trackview.editor.frame_to_pixel((nframes_t)note->time());
ev_rect->property_y1() = y1;
if (note->duration() > 0)
ev_rect->property_x2() = trackview.editor.frame_to_pixel((nframes_t)(note->end_time()));
else
ev_rect->property_x2() = trackview.editor.frame_to_pixel(_region->length());
ev_rect->property_y2() = y1 + floor(midi_stream_view()->note_height());
ev_rect->property_fill_color_rgba() = note_fill_color(note->velocity());
ev_rect->property_outline_color_rgba() = note_outline_color(note->velocity());
if (note->duration() == 0) {
_active_notes[note->note()] = ev_rect;
/* outline all but right edge */
ev_rect->property_outline_what() = (guint32) (0x1 & 0x4 & 0x8);
} else {
/* outline all edges */
ev_rect->property_outline_what() = (guint32) 0xF;
}
ev_rect->show();
_events.push_back(ev_rect);
MidiGhostRegion* gr;
for(vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
if((gr = dynamic_cast<MidiGhostRegion*>(*g)) != 0) {
gr->add_note(ev_rect);
}
}
} else if (midi_view()->note_mode() == Percussive) {
//cerr << "MRV::add_note percussive " << note->note() << " @ " << note->time()
// << " .. " << note->end_time() << endl;
const double diamond_size = midi_stream_view()->note_height() / 2.0;
const double x = trackview.editor.frame_to_pixel((nframes_t)note->time());
const double y = midi_stream_view()->note_to_y(note->note()) + ((diamond_size-2) / 4.0);
CanvasHit* ev_diamond = new CanvasHit(*this, *group, diamond_size);
ev_diamond->move(x, y);
ev_diamond->show();
ev_diamond->property_fill_color_rgba() = note_fill_color(note->velocity());
ev_diamond->property_outline_color_rgba() = note_outline_color(note->velocity());
_events.push_back(ev_diamond);
}
}
void
MidiRegionView::delete_selection()
{
assert(_delta_command);
for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
if ((*i)->selected())
_delta_command->remove((*i)->note());
_selection.clear();
}
void
MidiRegionView::clear_selection_except(ArdourCanvas::CanvasMidiEvent* ev)
{
for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
if ((*i)->selected() && (*i) != ev)
(*i)->selected(false);
_selection.clear();
}
void
MidiRegionView::unique_select(ArdourCanvas::CanvasMidiEvent* ev)
{
for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
if ((*i) != ev)
(*i)->selected(false);
_selection.clear();
_selection.insert(ev);
if ( ! ev->selected())
ev->selected(true);
}
void
MidiRegionView::note_selected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
{
if ( ! add)
clear_selection_except(ev);
_selection.insert(ev);
if ( ! ev->selected())
ev->selected(true);
}
void
MidiRegionView::note_deselected(ArdourCanvas::CanvasMidiEvent* ev, bool add)
{
if ( ! add)
clear_selection_except(ev);
_selection.erase(ev);
if (ev->selected())
ev->selected(false);
}
void
MidiRegionView::update_drag_selection(double x1, double x2, double y1, double y2)
{
const double last_y = std::min(y1, y2);
const double y = std::max(y1, y2);
// FIXME: so, so, so much slower than this should be
if (x1 < x2) {
for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
if ((*i)->x1() >= x1 && (*i)->x1() <= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
(*i)->selected(true);
_selection.insert(*i);
} else {
(*i)->selected(false);
_selection.erase(*i);
}
}
} else {
for (std::vector<CanvasMidiEvent*>::iterator i = _events.begin(); i != _events.end(); ++i) {
if ((*i)->x2() <= x1 && (*i)->x2() >= x2 && (*i)->y1() >= last_y && (*i)->y1() <= y) {
(*i)->selected(true);
_selection.insert(*i);
} else {
(*i)->selected(false);
_selection.erase(*i);
}
}
}
}
void
MidiRegionView::move_selection(double dx, double dy)
{
for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i)
(*i)->item()->move(dx, dy);
}
void
MidiRegionView::note_dropped(CanvasMidiEvent* ev, double dt, uint8_t dnote)
{
// TODO: This would be faster/nicer with a MoveCommand that doesn't need to copy...
if (_selection.find(ev) != _selection.end()) {
start_delta_command();
for (Selection::iterator i = _selection.begin(); i != _selection.end(); ++i) {
command_remove_note(*i);
const boost::shared_ptr<Note> copy(new Note(*(*i)->note().get()));
copy->set_time((*i)->note()->time() + dt);
copy->set_note((*i)->note()->note() + dnote);
command_add_note(copy);
}
apply_command();
}
}
void
MidiRegionView::note_entered(ArdourCanvas::CanvasMidiEvent* ev)
{
if (ev->note() && _mouse_state == EraseTouchDragging) {
start_delta_command();
ev->selected(true);
_delta_command->remove(ev->note());
} else if (_mouse_state == SelectTouchDragging) {
note_selected(ev, true);
}
}
void
MidiRegionView::switch_source(boost::shared_ptr<Source> src)
{
boost::shared_ptr<MidiSource> msrc = boost::dynamic_pointer_cast<MidiSource>(src);
if (msrc)
display_model(msrc->model());
}
void
MidiRegionView::set_frame_color()
{
if (frame) {
if (_selected && should_show_selection) {
frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectedFrameBase.get();
} else {
frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiFrameBase.get();
}
}
}