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livetrax/gtk2_ardour/midi_streamview.cc
David Robillard e0aaed6d65 *** NEW CODING POLICY *** 
All #include statements that include a header that is a part of a library
bundled with ardour MUST use quotes, not angle brackets.

Do this:

#include "ardour/types.h"

NOT this:

#include <ardour/types.h>

Rationale:

This is best practice in general, to ensure we include the local version
and not the system version.  That quotes mean "local" (in some sense)
and angle brackets mean "system" (in some sense) is a ubiquitous
convention and IIRC right in the C spec somewhere.

More pragmatically, this is required by (my) waf (stuff) for dependencies
to work correctly.  That is:

!!! FAILURE TO DO THIS CAN RESULT IN BROKEN BUILDS !!!

Failure to comply is punishable by death by torture. :)

P.S. It's not that dramatic in all cases, but this (in combination with some
GCC flags specific to the include type) is the best way I have found to be
absolutely 100% positive the local ones are being used (and we definitely
want to be absolutely 100% positive on that one).


git-svn-id: svn://localhost/ardour2/branches/3.0@4655 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-02-25 18:26:51 +00:00

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/*
Copyright (C) 2001-2007 Paul Davis
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 <utility>
#include <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include "ardour/midi_diskstream.h"
#include "ardour/midi_playlist.h"
#include "ardour/midi_region.h"
#include "ardour/midi_source.h"
#include "ardour/midi_track.h"
#include "ardour/region_factory.h"
#include "ardour/smf_source.h"
#include "ardour_ui.h"
#include "canvas-simplerect.h"
#include "gui_thread.h"
#include "lineset.h"
#include "midi_region_view.h"
#include "midi_streamview.h"
#include "midi_time_axis.h"
#include "midi_util.h"
#include "public_editor.h"
#include "region_selection.h"
#include "region_view.h"
#include "rgb_macros.h"
#include "selection.h"
#include "simplerect.h"
#include "utils.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
MidiStreamView::MidiStreamView (MidiTimeAxisView& tv)
: StreamView (tv)
, note_range_adjustment(0.0f, 0.0f, 0.0f)
, _range_dirty(false)
, _range_sum_cache(-1.0)
, _lowest_note(60)
, _highest_note(71)
, _data_note_min(60)
, _data_note_max(71)
{
if (tv.is_track()) {
stream_base_color = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
} else {
stream_base_color = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();
}
use_rec_regions = tv.editor().show_waveforms_recording ();
/* use a group dedicated to MIDI underlays. Audio underlays are not in this group. */
midi_underlay_group = new ArdourCanvas::Group (*canvas_group);
midi_underlay_group->lower_to_bottom();
/* put the note lines in the timeaxisview's group, so it
can be put below ghost regions from MIDI underlays*/
_note_lines = new ArdourCanvas::LineSet(*canvas_group, ArdourCanvas::LineSet::Horizontal);
_note_lines->property_x1() = 0;
_note_lines->property_y1() = 0;
_note_lines->property_x2() = trackview().editor().frame_to_pixel (max_frames);
_note_lines->property_y2() = 0;
_note_lines->signal_event().connect(bind(
mem_fun(_trackview.editor(), &PublicEditor::canvas_stream_view_event),
_note_lines, &_trackview));
_note_lines->lower_to_bottom();
ColorsChanged.connect(mem_fun(*this, &MidiStreamView::draw_note_lines));
note_range_adjustment.set_page_size(_highest_note - _lowest_note);
note_range_adjustment.set_value(_lowest_note);
note_range_adjustment.signal_value_changed().connect(
mem_fun(*this, &MidiStreamView::note_range_adjustment_changed));
}
MidiStreamView::~MidiStreamView ()
{
}
static void
veto_note_range(uint8_t& min, uint8_t& max)
{
/* Legal notes, thanks */
clamp_to_0_127(min);
clamp_to_0_127(max);
/* Always display at least one octave in [0, 127] */
if (max == 127) {
if (min > (127 - 11)) {
min = 127 - 11;
}
} else if (max < min + 11) {
uint8_t d = 11 - (max - min);
if (max + d/2 > 127) {
min -= d;
} else {
min -= d / 2;
max += d / 2;
}
}
assert(max - min >= 11);
assert(max <= 127);
assert(min <= 127);
}
RegionView*
MidiStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wfd, bool recording)
{
boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion> (r);
if (region == 0) {
return NULL;
}
MidiRegionView *region_view;
list<RegionView *>::iterator i;
for (i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region() == r) {
/* great. we already have a MidiRegionView for this Region. use it again. */
(*i)->set_valid (true);
display_region(dynamic_cast<MidiRegionView*>(*i), wfd);
return NULL;
}
}
region_view = new MidiRegionView (canvas_group, _trackview, region,
_samples_per_unit, region_color);
region_view->init (region_color, false);
region_views.push_front (region_view);
/* display events and find note range */
display_region(region_view, wfd);
/* catch regionview going away */
region->GoingAway.connect (bind (mem_fun (*this, &MidiStreamView::remove_region_view), region));
RegionViewAdded (region_view);
return region_view;
}
void
MidiStreamView::display_region(MidiRegionView* region_view, bool load_model)
{
if ( ! region_view)
return;
region_view->enable_display(true);
boost::shared_ptr<MidiSource> source(region_view->midi_region()->midi_source(0));
if (load_model) {
source->load_model();
}
_range_dirty = update_data_note_range(
source->model()->lowest_note(),
source->model()->highest_note());
// Display region contents
region_view->set_height(height);
region_view->display_model(source->model());
}
void
MidiStreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
{
StreamView::display_diskstream(ds);
draw_note_lines();
NoteRangeChanged();
}
void
MidiStreamView::update_contents_metrics(boost::shared_ptr<Region> r)
{
boost::shared_ptr<MidiRegion> mr = boost::dynamic_pointer_cast<MidiRegion>(r);
if (mr) {
mr->midi_source(0)->load_model();
_range_dirty = update_data_note_range(
mr->model()->lowest_note(),
mr->model()->highest_note());
}
}
bool
MidiStreamView::update_data_note_range(uint8_t min, uint8_t max)
{
bool dirty = false;
if (min < _data_note_min) {
_data_note_min = min;
dirty = true;
}
if (max > _data_note_max) {
_data_note_max = max;
dirty = true;
}
return dirty;
}
void
MidiStreamView::redisplay_diskstream ()
{
if (!_trackview.is_midi_track()) {
return;
}
list<RegionView*>::iterator i;
// Load models if necessary, and find note range of all our contents
_range_dirty = false;
_data_note_min = 127;
_data_note_max = 0;
_trackview.get_diskstream()->playlist()->foreach_region(
static_cast<StreamView*>(this),
&StreamView::update_contents_metrics);
// No notes, use default range
if (!_range_dirty) {
_data_note_min = 60;
_data_note_max = 71;
}
// Extend visible range to show newly recorded data, if necessary
_lowest_note = std::min(_lowest_note, _data_note_min);
_highest_note = std::max(_highest_note, _data_note_max);
veto_note_range(_lowest_note, _highest_note);
// Flag region views as invalid and disable drawing
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_valid(false);
(*i)->enable_display(false);
}
// Add and display region views, and flag them as valid
_trackview.get_diskstream()->playlist()->foreach_region(
static_cast<StreamView*>(this),
&StreamView::add_region_view);
// Stack regions by layer, and remove invalid regions
layer_regions();
// Update note range (not regions which are correct) and draw note lines
apply_note_range(_lowest_note, _highest_note, false);
}
void
MidiStreamView::update_contents_height ()
{
StreamView::update_contents_height();
_note_lines->property_y2() = height;
draw_note_lines();
}
void
MidiStreamView::draw_note_lines()
{
double y;
double prev_y = contents_height();
uint32_t color;
_note_lines->clear();
for (int i = lowest_note(); i <= highest_note(); ++i) {
y = floor(note_to_y(i));
_note_lines->add_line(prev_y, 1.0, ARDOUR_UI::config()->canvasvar_PianoRollBlackOutline.get());
switch (i % 12) {
case 1:
case 3:
case 6:
case 8:
case 10:
color = ARDOUR_UI::config()->canvasvar_PianoRollBlack.get();
break;
default:
color = ARDOUR_UI::config()->canvasvar_PianoRollWhite.get();
break;
}
if (i == highest_note()) {
_note_lines->add_line(y, prev_y - y, color);
} else {
_note_lines->add_line(y + 1.0, prev_y - y - 1.0, color);
}
prev_y = y;
}
}
void
MidiStreamView::set_note_range(VisibleNoteRange r)
{
if (r == FullRange) {
_lowest_note = 0;
_highest_note = 127;
} else {
_lowest_note = _data_note_min;
_highest_note = _data_note_max;
}
apply_note_range(_lowest_note, _highest_note, true);
}
void
MidiStreamView::apply_note_range(uint8_t lowest, uint8_t highest, bool to_region_views)
{
_highest_note = highest;
_lowest_note = lowest;
note_range_adjustment.set_page_size(_highest_note - _lowest_note);
note_range_adjustment.set_value(_lowest_note);
draw_note_lines();
if (to_region_views) {
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
((MidiRegionView*)(*i))->apply_note_range(lowest, highest);
}
}
NoteRangeChanged();
}
void
MidiStreamView::update_note_range(uint8_t note_num)
{
assert(note_num <= 127);
_data_note_min = min(_data_note_min, note_num);
_data_note_max = max(_data_note_max, note_num);
}
void
MidiStreamView::setup_rec_box ()
{
// cerr << _trackview.name() << " streamview SRB\n";
if (_trackview.session().transport_rolling()) {
if (!rec_active &&
_trackview.session().record_status() == Session::Recording &&
_trackview.get_diskstream()->record_enabled()) {
if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
/* add a new region, but don't bother if they set use_rec_regions mid-record */
MidiRegion::SourceList sources;
for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
(*prc).disconnect();
}
rec_data_ready_connections.clear();
// FIXME
boost::shared_ptr<MidiDiskstream> mds = boost::dynamic_pointer_cast<MidiDiskstream>(_trackview.get_diskstream());
assert(mds);
sources.push_back(mds->write_source());
rec_data_ready_connections.push_back (mds->write_source()->ViewDataRangeReady.connect (bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), boost::weak_ptr<Source>(mds->write_source()))));
// handle multi
jack_nframes_t start = 0;
if (rec_regions.size() > 0) {
start = rec_regions.back().first->position() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
}
boost::shared_ptr<MidiRegion> region (boost::dynamic_pointer_cast<MidiRegion>
(RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
assert(region);
region->set_position (_trackview.session().transport_frame(), this);
rec_regions.push_back (make_pair(region, (RegionView*)0));
// rec regions are destroyed in setup_rec_box
/* we add the region later */
}
/* start a new rec box */
boost::shared_ptr<MidiTrack> mt = _trackview.midi_track(); /* we know what it is already */
boost::shared_ptr<MidiDiskstream> ds = mt->midi_diskstream();
jack_nframes_t frame_pos = ds->current_capture_start ();
gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
gdouble xend;
uint32_t fill_color;
assert(_trackview.midi_track()->mode() == Normal);
xend = xstart;
fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
rec_rect->property_x1() = xstart;
rec_rect->property_y1() = 1.0;
rec_rect->property_x2() = xend;
rec_rect->property_y2() = (double) _trackview.current_height() - 1;
rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
rec_rect->property_fill_color_rgba() = fill_color;
rec_rect->lower_to_bottom();
RecBoxInfo recbox;
recbox.rectangle = rec_rect;
recbox.start = _trackview.session().transport_frame();
recbox.length = 0;
rec_rects.push_back (recbox);
screen_update_connection.disconnect();
screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &MidiStreamView::update_rec_box));
rec_updating = true;
rec_active = true;
} else if (rec_active &&
(_trackview.session().record_status() != Session::Recording ||
!_trackview.get_diskstream()->record_enabled())) {
screen_update_connection.disconnect();
rec_active = false;
rec_updating = false;
}
} else {
// cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
if (!rec_rects.empty() || !rec_regions.empty()) {
/* disconnect rapid update */
screen_update_connection.disconnect();
for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
(*prc).disconnect();
}
rec_data_ready_connections.clear();
rec_updating = false;
rec_active = false;
/* remove temp regions */
for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end();) {
list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
tmp = iter;
++tmp;
(*iter).first->drop_references ();
iter = tmp;
}
rec_regions.clear();
// cerr << "\tclear " << rec_rects.size() << " rec rects\n";
/* transport stopped, clear boxes */
for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
RecBoxInfo &rect = (*iter);
delete rect.rectangle;
}
rec_rects.clear();
}
}
}
void
MidiStreamView::update_rec_regions (boost::shared_ptr<MidiModel> data, nframes_t start, nframes_t dur)
{
ENSURE_GUI_THREAD (bind (mem_fun (*this, &MidiStreamView::update_rec_regions), data, start, dur));
if (use_rec_regions) {
uint32_t n = 0;
bool update_range = false;
for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
tmp = iter;
++tmp;
boost::shared_ptr<MidiRegion> region = boost::dynamic_pointer_cast<MidiRegion>(iter->first);
if (!region || !iter->second) {
iter = tmp;
continue;
}
if (!canvas_item_visible (rec_rects[n].rectangle)) {
/* rect already hidden, this region is done */
iter = tmp;
continue;
}
nframes_t origlen = region->length();
if (region == rec_regions.back().first && rec_active) {
if (start >= region->midi_source(0)->timeline_position()) {
nframes_t nlen = start + dur - region->position();
if (nlen != region->length()) {
region->freeze ();
region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
region->set_length (start + dur - region->position(), this);
region->thaw ("updated");
if (origlen == 1) {
/* our special initial length */
iter->second = add_region_view_internal (region, false);
((MidiRegionView*)iter->second)->begin_write();
}
/* also update rect */
ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
rect->property_x2() = xend;
/* draw events */
MidiRegionView* mrv = (MidiRegionView*)iter->second;
for (size_t i=0; i < data->n_notes(); ++i) {
// FIXME: slooooooooow!
const boost::shared_ptr<MidiRegionView::NoteType> note = data->note_at(i);
if (note->length() > 0 && note->end_time() + region->position() > start)
mrv->resolve_note(note->note(), note->end_time());
if (note->time() + region->position() < start)
continue;
if (note->time() + region->position() > start + dur)
break;
mrv->add_note(note);
if (note->note() < _lowest_note) {
_lowest_note = note->note();
update_range = true;
} else if (note->note() > _highest_note) {
_highest_note = note->note();
update_range = true;
}
}
mrv->extend_active_notes();
}
}
} else {
nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
if (nlen != region->length()) {
if (region->source_length(0) >= region->position() + nlen) {
region->freeze ();
region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
region->set_length (nlen, this);
region->thaw ("updated");
if (origlen == 1) {
/* our special initial length */
iter->second = add_region_view_internal (region, false);
}
/* also hide rect */
ArdourCanvas::Item * rect = rec_rects[n].rectangle;
rect->hide();
}
}
}
iter = tmp;
}
if (update_range)
update_contents_height();
}
}
void
MidiStreamView::rec_data_range_ready (jack_nframes_t start, jack_nframes_t dur, boost::weak_ptr<Source> weak_src)
{
// this is called from the butler thread for now
ENSURE_GUI_THREAD(bind (mem_fun (*this, &MidiStreamView::rec_data_range_ready), start, dur, weak_src));
boost::shared_ptr<SMFSource> src (boost::dynamic_pointer_cast<SMFSource>(weak_src.lock()));
this->update_rec_regions (src->model(), start, dur);
}
void
MidiStreamView::color_handler ()
{
//case cMidiTrackBase:
if (_trackview.is_midi_track()) {
//canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiTrackBase.get();
}
//case cMidiBusBase:
if (!_trackview.is_midi_track()) {
//canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiBusBase.get();;
}
}
void
MidiStreamView::note_range_adjustment_changed()
{
double sum = note_range_adjustment.get_value() + note_range_adjustment.get_page_size();
int lowest = (int) floor(note_range_adjustment.get_value());
int highest;
if (sum == _range_sum_cache) {
//cerr << "cached" << endl;
highest = (int) floor(sum);
} else {
//cerr << "recalc" << endl;
highest = lowest + (int) floor(note_range_adjustment.get_page_size());
_range_sum_cache = sum;
}
if (lowest == _lowest_note && highest == _highest_note) {
return;
}
//cerr << "note range adjustment changed: " << lowest << " " << highest << endl;
//cerr << " val=" << v_zoom_adjustment.get_value() << " page=" << v_zoom_adjustment.get_page_size() << " sum=" << v_zoom_adjustment.get_value() + v_zoom_adjustment.get_page_size() << endl;
_lowest_note = lowest;
_highest_note = highest;
apply_note_range(lowest, highest, true);
}
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