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livetrax/gtk2_ardour/ghostregion.cc
2017-01-27 00:58:09 +11:00

483 lines
12 KiB
C++

/*
Copyright (C) 2000-2007 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 "ardour/parameter_descriptor.h"
#include "evoral/Note.hpp"
#include "canvas/container.h"
#include "canvas/polygon.h"
#include "canvas/rectangle.h"
#include "canvas/wave_view.h"
#include "canvas/debug.h"
#include "automation_time_axis.h"
#include "ghostregion.h"
#include "midi_streamview.h"
#include "midi_time_axis.h"
#include "region_view.h"
#include "rgb_macros.h"
#include "note.h"
#include "hit.h"
#include "ui_config.h"
using namespace std;
using namespace Editing;
using namespace ArdourCanvas;
using namespace ARDOUR;
GhostRegion::GhostRegion(RegionView& rv,
ArdourCanvas::Container* parent,
TimeAxisView& tv,
TimeAxisView& source_tv,
double initial_pos)
: parent_rv(rv)
, trackview(tv)
, source_trackview(source_tv)
{
group = new ArdourCanvas::Container (parent);
CANVAS_DEBUG_NAME (group, "ghost region");
group->set_position (ArdourCanvas::Duple (initial_pos, 0));
base_rect = new ArdourCanvas::Rectangle (group);
CANVAS_DEBUG_NAME (base_rect, "ghost region rect");
base_rect->set_x0 (0);
base_rect->set_y0 (1.0);
base_rect->set_y1 (trackview.current_height());
base_rect->set_outline (false);
if (!is_automation_ghost()) {
base_rect->hide();
}
GhostRegion::set_colors();
/* the parent group of a ghostregion is a dedicated group for ghosts,
so the new ghost would want to get to the top of that group*/
group->raise_to_top ();
}
GhostRegion::~GhostRegion ()
{
parent_rv.remove_ghost(this);
trackview.erase_ghost(this);
delete base_rect;
delete group;
}
void
GhostRegion::set_duration (double units)
{
base_rect->set_x1 (units);
}
void
GhostRegion::set_height ()
{
base_rect->set_y1 (trackview.current_height());
}
void
GhostRegion::set_colors ()
{
if (is_automation_ghost()) {
base_rect->set_fill_color (UIConfiguration::instance().color_mod ("ghost track base", "ghost track base"));
}
}
guint
GhostRegion::source_track_color(unsigned char alpha)
{
Gdk::Color color = source_trackview.color();
return RGBA_TO_UINT (color.get_red() / 256, color.get_green() / 256, color.get_blue() / 256, alpha);
}
bool
GhostRegion::is_automation_ghost()
{
return (dynamic_cast<AutomationTimeAxisView*>(&trackview)) != 0;
}
AudioGhostRegion::AudioGhostRegion(RegionView& rv,
TimeAxisView& tv,
TimeAxisView& source_tv,
double initial_unit_pos)
: GhostRegion(rv, tv.ghost_group(), tv, source_tv, initial_unit_pos)
{
}
void
AudioGhostRegion::set_samples_per_pixel (double fpp)
{
for (vector<WaveView*>::iterator i = waves.begin(); i != waves.end(); ++i) {
(*i)->set_samples_per_pixel (fpp);
}
}
void
AudioGhostRegion::set_height ()
{
vector<WaveView*>::iterator i;
uint32_t n;
GhostRegion::set_height();
double const ht = ((trackview.current_height()) / (double) waves.size());
for (n = 0, i = waves.begin(); i != waves.end(); ++i, ++n) {
(*i)->set_height (ht);
(*i)->set_y_position (n * ht);
}
}
void
AudioGhostRegion::set_colors ()
{
GhostRegion::set_colors();
guint fill_color;
if (is_automation_ghost()) {
fill_color = UIConfiguration::instance().color ("ghost track wave fill");
}
else {
fill_color = source_track_color(200);
}
for (uint32_t n=0; n < waves.size(); ++n) {
waves[n]->set_outline_color (UIConfiguration::instance().color ("ghost track wave"));
waves[n]->set_fill_color (fill_color);
waves[n]->set_clip_color (UIConfiguration::instance().color ("ghost track wave clip"));
waves[n]->set_zero_color (UIConfiguration::instance().color ("ghost track zero line"));
}
}
/** The general constructor; called when the destination timeaxisview doesn't have
* a midistreamview.
*
* @param rv The parent RegionView that is being ghosted.
* @param tv TimeAxisView that this ghost region is on.
* @param source_tv TimeAxisView that we are the ghost for.
*/
MidiGhostRegion::MidiGhostRegion(RegionView& rv,
TimeAxisView& tv,
TimeAxisView& source_tv,
double initial_unit_pos)
: GhostRegion(rv, tv.ghost_group(), tv, source_tv, initial_unit_pos)
, _note_group (new ArdourCanvas::Container (group))
, _optimization_iterator(events.end())
{
_outline = UIConfiguration::instance().color ("ghost track midi outline");
base_rect->lower_to_bottom();
}
/**
* @param rv The parent RegionView being ghosted.
* @param msv MidiStreamView that this ghost region is on.
* @param source_tv TimeAxisView that we are the ghost for.
*/
MidiGhostRegion::MidiGhostRegion(RegionView& rv,
MidiStreamView& msv,
TimeAxisView& source_tv,
double initial_unit_pos)
: GhostRegion(rv,
msv.midi_underlay_group,
msv.trackview(),
source_tv,
initial_unit_pos)
, _note_group (new ArdourCanvas::Container (group))
, _optimization_iterator(events.end())
{
_outline = UIConfiguration::instance().color ("ghost track midi outline");
base_rect->lower_to_bottom();
}
MidiGhostRegion::~MidiGhostRegion()
{
clear_events ();
delete _note_group;
}
MidiGhostRegion::GhostEvent::GhostEvent (NoteBase* e, ArdourCanvas::Container* g)
: event (e)
{
if (dynamic_cast<Note*>(e)) {
item = new ArdourCanvas::Rectangle(
g, ArdourCanvas::Rect(e->x0(), e->y0(), e->x1(), e->y1()));
is_hit = false;
} else {
Hit* hit = dynamic_cast<Hit*>(e);
if (!hit) {
return;
}
ArdourCanvas::Polygon* poly = new ArdourCanvas::Polygon(g);
poly->set(Hit::points(e->y1() - e->y0()));
poly->set_position(hit->position());
item = poly;
is_hit = true;
}
CANVAS_DEBUG_NAME (item, "ghost note item");
}
MidiGhostRegion::GhostEvent::~GhostEvent ()
{
/* event is not ours to delete */
delete item;
}
void
MidiGhostRegion::set_samples_per_pixel (double /*spu*/)
{
}
/** @return MidiStreamView that we are providing a ghost for */
MidiStreamView*
MidiGhostRegion::midi_view ()
{
StreamView* sv = source_trackview.view ();
assert (sv);
MidiStreamView* msv = dynamic_cast<MidiStreamView*> (sv);
assert (msv);
return msv;
}
void
MidiGhostRegion::set_height ()
{
GhostRegion::set_height();
update_contents_height ();
}
void
MidiGhostRegion::set_colors()
{
GhostRegion::set_colors();
_outline = UIConfiguration::instance().color ("ghost track midi outline");
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
it->second->item->set_fill_color (UIConfiguration::instance().color_mod((*it).second->event->base_color(), "ghost track midi fill"));
it->second->item->set_outline_color (_outline);
}
}
static double
note_height(TimeAxisView& trackview, MidiStreamView* mv)
{
const double tv_height = trackview.current_height();
const double note_range = mv->contents_note_range();
return std::max(1.0, floor(tv_height / note_range - 1.0));
}
static double
note_y(TimeAxisView& trackview, MidiStreamView* mv, uint8_t note_num)
{
const double tv_height = trackview.current_height();
const double note_range = mv->contents_note_range();
const double s = tv_height / note_range;
return tv_height - (note_num + 1 - mv->lowest_note()) * s;
}
void
MidiGhostRegion::update_contents_height ()
{
MidiStreamView* mv = midi_view();
if (!mv) {
return;
}
double const h = note_height(trackview, mv);
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
uint8_t const note_num = it->second->event->note()->note();
double const y = note_y(trackview, mv, note_num);
if (!it->second->is_hit) {
_tmp_rect = static_cast<ArdourCanvas::Rectangle*>(it->second->item);
_tmp_rect->set (ArdourCanvas::Rect (_tmp_rect->x0(), y, _tmp_rect->x1(), y + h));
} else {
_tmp_poly = static_cast<ArdourCanvas::Polygon*>(it->second->item);
Duple position = _tmp_poly->position();
position.y = y;
_tmp_poly->set_position(position);
_tmp_poly->set(Hit::points(h));
}
}
}
void
MidiGhostRegion::add_note (NoteBase* n)
{
GhostEvent* event = new GhostEvent (n, _note_group);
events.insert (make_pair (n->note(), event));
event->item->set_fill_color (UIConfiguration::instance().color_mod(n->base_color(), "ghost track midi fill"));
event->item->set_outline_color (_outline);
MidiStreamView* mv = midi_view();
if (mv) {
if (!n->item()->visible()) {
event->item->hide();
} else {
uint8_t const note_num = n->note()->note();
double const h = note_height(trackview, mv);
double const y = note_y(trackview, mv, note_num);
if (!event->is_hit) {
_tmp_rect = static_cast<ArdourCanvas::Rectangle*>(event->item);
_tmp_rect->set (ArdourCanvas::Rect (_tmp_rect->x0(), y, _tmp_rect->x1(), y + h));
} else {
_tmp_poly = static_cast<ArdourCanvas::Polygon*>(event->item);
Duple position = _tmp_poly->position();
position.y = y;
_tmp_poly->set_position(position);
_tmp_poly->set(Hit::points(h));
}
}
}
}
void
MidiGhostRegion::clear_events()
{
_note_group->clear (true);
events.clear ();
_optimization_iterator = events.end();
}
/** Update the x positions of our representation of a parent's note.
* @param parent The CanvasNote from the parent MidiRegionView.
*/
void
MidiGhostRegion::update_note (Note* note, bool hide)
{
MidiStreamView* mv = midi_view();
if (!mv) {
return;
}
GhostEvent* ev = find_event (note->note());
if (!ev) {
return;
}
if (hide) {
ev->item->hide();
} else if (!ev->is_hit) {
_tmp_rect = static_cast<ArdourCanvas::Rectangle*>(ev->item);
uint8_t const note_num = note->note()->note();
double const y = note_y(trackview, mv, note_num);
double const h = note_height(trackview, mv);
_tmp_rect->set (ArdourCanvas::Rect (note->x0(), y, note->x1(), y + h));
ev->item->show();
}
}
/** Update the x positions of our representation of a parent's hit.
* @param hit The CanvasHit from the parent MidiRegionView.
*/
void
MidiGhostRegion::update_hit (Hit* hit, bool hide)
{
MidiStreamView* mv = midi_view();
if (!mv) {
return;
}
GhostEvent* ev = find_event (hit->note());
if (!ev) {
return;
}
if (hide) {
ev->item->hide();
} else if (ev->is_hit) {
_tmp_poly = static_cast<ArdourCanvas::Polygon*>(ev->item);
uint8_t const note_num = ev->event->note()->note();
double const h = note_height(trackview, mv);
double const y = note_y(trackview, mv, note_num);
ArdourCanvas::Duple ppos = hit->position();
ArdourCanvas::Duple gpos = _tmp_poly->position();
gpos.x = ppos.x;
gpos.y = y;
_tmp_poly->set_position(gpos);
_tmp_poly->set(Hit::points(h));
ev->item->show();
}
}
void
MidiGhostRegion::remove_note (NoteBase* note)
{
EventList::iterator f = events.find (note->note());
if (f == events.end()) {
return;
}
delete f->second;
events.erase (f);
_optimization_iterator = events.end ();
}
/** Given a note in our parent region (ie the actual MidiRegionView), find our
* representation of it.
* @return Our Event, or 0 if not found.
*/
MidiGhostRegion::GhostEvent *
MidiGhostRegion::find_event (boost::shared_ptr<NoteType> parent)
{
/* we are using _optimization_iterator to speed up the common case where a caller
is going through our notes in order.
*/
if (_optimization_iterator != events.end()) {
++_optimization_iterator;
if (_optimization_iterator != events.end() && _optimization_iterator->first == parent) {
return _optimization_iterator->second;
}
}
_optimization_iterator = events.find (parent);
if (_optimization_iterator != events.end()) {
return _optimization_iterator->second;
}
return 0;
}