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livetrax/gtk2_ardour/ghostregion.cc
Carl Hetherington 1e185b54f5 Concatenate MidiGhostRegion::Note and MidiGhostRegion::Event.
git-svn-id: svn://localhost/ardour2/branches/3.0@10660 d708f5d6-7413-0410-9779-e7cbd77b26cf
2011-11-17 22:15:56 +00:00

359 lines
9.0 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 "evoral/Note.hpp"
#include "ardour_ui.h"
#include "automation_time_axis.h"
#include "canvas-note.h"
#include "ghostregion.h"
#include "midi_streamview.h"
#include "midi_time_axis.h"
#include "rgb_macros.h"
#include "simplerect.h"
#include "waveview.h"
using namespace std;
using namespace Editing;
using namespace ArdourCanvas;
using namespace ARDOUR;
PBD::Signal1<void,GhostRegion*> GhostRegion::CatchDeletion;
GhostRegion::GhostRegion (ArdourCanvas::Group* parent, TimeAxisView& tv, TimeAxisView& source_tv, double initial_pos)
: trackview (tv)
, source_trackview (source_tv)
{
group = new ArdourCanvas::Group (*parent);
group->property_x() = initial_pos;
group->property_y() = 0.0;
base_rect = new ArdourCanvas::SimpleRect (*group);
base_rect->property_x1() = (double) 0.0;
base_rect->property_y1() = (double) 0.0;
base_rect->property_y2() = (double) trackview.current_height();
base_rect->property_outline_what() = (guint32) 0;
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 ()
{
CatchDeletion (this);
delete base_rect;
delete group;
}
void
GhostRegion::set_duration (double units)
{
base_rect->property_x2() = units;
}
void
GhostRegion::set_height ()
{
base_rect->property_y2() = (double) trackview.current_height();
}
void
GhostRegion::set_colors ()
{
if (is_automation_ghost()) {
base_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackBase.get();
base_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackBase.get();
}
}
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(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
: GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
{
}
void
AudioGhostRegion::set_samples_per_unit (double spu)
{
for (vector<WaveView*>::iterator i = waves.begin(); i != waves.end(); ++i) {
(*i)->property_samples_per_unit() = spu;
}
}
void
AudioGhostRegion::set_height ()
{
gdouble ht;
vector<WaveView*>::iterator i;
uint32_t n;
GhostRegion::set_height();
ht = ((trackview.current_height()) / (double) waves.size());
for (n = 0, i = waves.begin(); i != waves.end(); ++i, ++n) {
gdouble yoff = n * ht;
(*i)->property_height() = ht;
(*i)->property_y() = yoff;
}
}
void
AudioGhostRegion::set_colors ()
{
GhostRegion::set_colors();
guint fill_color;
if (is_automation_ghost()) {
fill_color = ARDOUR_UI::config()->canvasvar_GhostTrackWaveFill.get();
}
else {
fill_color = source_track_color(200);
}
for (uint32_t n=0; n < waves.size(); ++n) {
waves[n]->property_wave_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWave.get();
waves[n]->property_fill_color() = fill_color;
waves[n]->property_clip_color() = ARDOUR_UI::config()->canvasvar_GhostTrackWaveClip.get();
waves[n]->property_zero_color() = ARDOUR_UI::config()->canvasvar_GhostTrackZeroLine.get();
}
}
/** The general constructor; called when the destination timeaxisview doesn't have
* a midistreamview.
*
* @param tv TimeAxisView that this ghost region is on.
* @param source_tv TimeAxisView that we are the ghost for.
*/
MidiGhostRegion::MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
: GhostRegion(tv.ghost_group(), tv, source_tv, initial_unit_pos)
, _optimization_iterator (events.end ())
{
base_rect->lower_to_bottom();
update_range ();
midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
}
/**
* @param msv MidiStreamView that this ghost region is on.
* @param source_tv TimeAxisView that we are the ghost for.
*/
MidiGhostRegion::MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos)
: GhostRegion(msv.midi_underlay_group, msv.trackview(), source_tv, initial_unit_pos)
, _optimization_iterator (events.end ())
{
base_rect->lower_to_bottom();
update_range ();
midi_view()->NoteRangeChanged.connect (sigc::mem_fun (*this, &MidiGhostRegion::update_range));
}
MidiGhostRegion::~MidiGhostRegion()
{
clear_events ();
}
MidiGhostRegion::Event::Event (ArdourCanvas::CanvasNoteEvent* e, ArdourCanvas::Group* g)
: event (e)
{
rect = new ArdourCanvas::SimpleRect (*g, e->x1(), e->y1(), e->x2(), e->y2());
}
MidiGhostRegion::Event::~Event ()
{
/* event is not ours to delete */
delete rect;
}
void
MidiGhostRegion::set_samples_per_unit (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_range();
}
void
MidiGhostRegion::set_colors()
{
guint fill = source_track_color(200);
GhostRegion::set_colors();
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
(*it)->rect->property_fill_color_rgba() = fill;
(*it)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
}
}
void
MidiGhostRegion::update_range ()
{
MidiStreamView* mv = midi_view();
if (!mv) {
return;
}
double const h = trackview.current_height() / double (mv->contents_note_range ());
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
uint8_t const note_num = (*it)->event->note()->note();
if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
(*it)->rect->hide();
} else {
(*it)->rect->show();
double const y = trackview.current_height() - (note_num + 1 - mv->lowest_note()) * h + 1;
(*it)->rect->property_y1() = y;
(*it)->rect->property_y2() = y + h;
}
}
}
void
MidiGhostRegion::add_note(ArdourCanvas::CanvasNote* n)
{
Event* event = new Event (n, group);
events.push_back (event);
event->rect->property_fill_color_rgba() = source_track_color(200);
event->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
MidiStreamView* mv = midi_view();
if (mv) {
const uint8_t note_num = n->note()->note();
if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
event->rect->hide();
} else {
const double y = mv->note_to_y(note_num);
event->rect->property_y1() = y;
event->rect->property_y2() = y + mv->note_height();
}
}
}
void
MidiGhostRegion::clear_events()
{
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
delete *it;
}
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 (ArdourCanvas::CanvasNote* parent)
{
Event* ev = find_event (parent);
if (!ev) {
return;
}
double const x1 = parent->property_x1 ();
double const x2 = parent->property_x2 ();
ev->rect->property_x1 () = x1;
ev->rect->property_x2 () = x2;
}
void
MidiGhostRegion::remove_note (ArdourCanvas::CanvasNoteEvent* note)
{
Event* ev = find_event (note);
if (!ev) {
return;
}
events.remove (ev);
delete ev;
_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::Event *
MidiGhostRegion::find_event (ArdourCanvas::CanvasNoteEvent* 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)->event == parent) {
return *_optimization_iterator;
}
for (_optimization_iterator = events.begin(); _optimization_iterator != events.end(); ++_optimization_iterator) {
if ((*_optimization_iterator)->event == parent) {
return *_optimization_iterator;
}
}
return 0;
}