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livetrax/gtk2_ardour/ghostregion.cc

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/*
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 "simplerect.h"
#include "waveview.h"
#include "ghostregion.h"
#include "midi_time_axis.h"
#include "automation_time_axis.h"
#include "midi_streamview.h"
#include "rgb_macros.h"
#include "ardour_ui.h"
#include "canvas-hit.h"
#include "canvas-note.h"
using namespace Editing;
using namespace ArdourCanvas;
using namespace ARDOUR;
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 ()
{
GoingAway (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();
unsigned char r,g,b ;
r = color.get_red()/256;
g = color.get_green()/256;
b = color.get_blue()/256;
return RGBA_TO_UINT(r, g, b, 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();
}
}
/*
* This is the general constructor, and is called when the destination timeaxisview doesn't have
* a midistreamview. But what to do when positioning the midi ghost here? For example, there is
* no range controller in these tracks. maybe show the whole range.
*/
MidiGhostRegion::MidiGhostRegion(TimeAxisView& tv, TimeAxisView& source_tv, double initial_unit_pos)
: GhostRegion(tv.ghost_group, tv, source_tv, initial_unit_pos)
{
base_rect->lower_to_bottom();
}
MidiGhostRegion::MidiGhostRegion(MidiStreamView& msv, TimeAxisView& source_tv, double initial_unit_pos)
: GhostRegion(msv.midi_underlay_group, msv.trackview(), source_tv, initial_unit_pos)
{
base_rect->lower_to_bottom();
}
MidiGhostRegion::~MidiGhostRegion()
{
//clear_events();
}
MidiGhostRegion::Event::Event(ArdourCanvas::CanvasNoteEvent* e)
: event(e)
{
}
MidiGhostRegion::Note::Note(ArdourCanvas::CanvasNote* n, ArdourCanvas::Group* g)
: Event(n)
{
rect = new ArdourCanvas::SimpleRect(*g, n->x1(), n->y1(), n->x2(), n->y2());
}
MidiGhostRegion::Note::~Note()
{
//delete rect;
}
void
MidiGhostRegion::Note::x_changed()
{
rect->property_x1() = event->x1();
rect->property_x2() = event->x2();
}
MidiGhostRegion::Hit::Hit(ArdourCanvas::CanvasHit* h, ArdourCanvas::Group*)
: Event(h)
{
cerr << "Hit ghost item does not work yet" << endl;
}
MidiGhostRegion::Hit::~Hit()
{
}
void
MidiGhostRegion::Hit::x_changed()
{
}
void
MidiGhostRegion::set_samples_per_unit (double spu)
{
}
MidiStreamView*
MidiGhostRegion::midi_view()
{
MidiTimeAxisView* mtv;
if ((mtv = dynamic_cast<MidiTimeAxisView*>(&trackview)) != 0) {
return mtv->midi_view();
}
else {
return 0;
}
}
void
MidiGhostRegion::set_height()
{
GhostRegion::set_height();
update_range();
}
void
MidiGhostRegion::set_colors()
{
MidiGhostRegion::Note* note;
guint fill = source_track_color(200);
GhostRegion::set_colors();
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
note->rect->property_fill_color_rgba() = fill;
note->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_GhostTrackMidiOutline.get();
}
}
}
void
MidiGhostRegion::update_range()
{
MidiStreamView* mv = midi_view();
if (!mv) {
return;
}
MidiGhostRegion::Note* note;
uint8_t note_num;
double y;
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
if ((note = dynamic_cast<MidiGhostRegion::Note*>(*it)) != 0) {
note_num = note->event->note()->note();
if (note_num < mv->lowest_note() || note_num > mv->highest_note()) {
note->rect->hide();
}
else {
note->rect->show();
y = mv->note_to_y(note_num);
note->rect->property_y1() = y;
note->rect->property_y2() = y + mv->note_height();
}
}
}
}
void
MidiGhostRegion::add_note(ArdourCanvas::CanvasNote* n)
{
Note* note = new Note(n, group);
events.push_back(note);
note->rect->property_fill_color_rgba() = source_track_color(200);
note->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()) {
note->rect->hide();
} else {
const double y = mv->note_to_y(note_num);
note->rect->property_y1() = y;
note->rect->property_y2() = y + mv->note_height();
}
}
}
void
MidiGhostRegion::add_hit(ArdourCanvas::CanvasHit* h)
{
//events.push_back(new Hit(h, group));
}
void
MidiGhostRegion::clear_events()
{
for (EventList::iterator it = events.begin(); it != events.end(); ++it) {
delete *it;
}
events.clear();
}