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livetrax/gtk2_ardour/streamview.cc

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/*
Copyright (C) 2001, 2006 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 <gtkmm.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/playlist.h>
#include <ardour/region.h>
#include <ardour/source.h>
#include <ardour/diskstream.h>
#include <ardour/track.h>
#include "streamview.h"
#include "region_view.h"
#include "route_time_axis.h"
#include "canvas-waveview.h"
#include "canvas-simplerect.h"
#include "region_selection.h"
#include "selection.h"
#include "public_editor.h"
#include "ardour_ui.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "utils.h"
#include "color.h"
using namespace ARDOUR;
using namespace PBD;
using namespace Editing;
StreamView::StreamView (RouteTimeAxisView& tv)
: _trackview (tv)
, canvas_group(new ArdourCanvas::Group(*_trackview.canvas_display))
, canvas_rect(new ArdourCanvas::SimpleRect (*canvas_group))
, _samples_per_unit(_trackview.editor.get_current_zoom())
, rec_updating(false)
, rec_active(false)
, use_rec_regions(tv.editor.show_waveforms_recording())
, region_color(_trackview.color())
, stream_base_color(0xFFFFFFFF)
{
/* set_position() will position the group */
canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
canvas_rect->property_x1() = 0.0;
canvas_rect->property_y1() = 0.0;
canvas_rect->property_x2() = _trackview.editor.frame_to_pixel (max_frames);
canvas_rect->property_y2() = (double) tv.height;
canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8); // outline ends and bottom
// (Fill/Outline colours set in derived classes)
canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
if (_trackview.is_track()) {
_trackview.track()->DiskstreamChanged.connect (mem_fun (*this, &StreamView::diskstream_changed));
_trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
_trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &StreamView::rec_enable_changed));
_trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
}
ColorChanged.connect (mem_fun (*this, &StreamView::color_handler));
}
StreamView::~StreamView ()
{
undisplay_diskstream ();
delete canvas_group;
}
void
StreamView::attach ()
{
if (_trackview.is_track()) {
display_diskstream (_trackview.get_diskstream());
}
}
int
StreamView::set_position (gdouble x, gdouble y)
{
canvas_group->property_x() = x;
canvas_group->property_y() = y;
return 0;
}
int
StreamView::set_height (gdouble h)
{
/* limit the values to something sane-ish */
if (h < 10.0 || h > 1000.0) {
return -1;
}
canvas_rect->property_y2() = h;
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_height (h);
}
/*for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
(*i)->set_height (h);
}*/
for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
RecBoxInfo &recbox = (*i);
recbox.rectangle->property_y2() = h - 1.0;
}
return 0;
}
int
StreamView::set_samples_per_unit (gdouble spp)
{
RegionViewList::iterator i;
if (spp < 1.0) {
return -1;
}
_samples_per_unit = spp;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_samples_per_unit (spp);
}
for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
RecBoxInfo &recbox = (*xi);
gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
recbox.rectangle->property_x1() = xstart;
recbox.rectangle->property_x2() = xend;
}
return 0;
}
void
StreamView::add_region_view (boost::shared_ptr<Region> r)
{
add_region_view_internal (r, true);
}
void
StreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
{
ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), weak_r));
boost::shared_ptr<Region> r (weak_r.lock());
if (!r) {
return;
}
for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if (((*i)->region()) == r) {
delete *i;
region_views.erase (i);
break;
}
}
}
void
StreamView::undisplay_diskstream ()
{
for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
delete *i;
}
region_views.clear();
}
void
StreamView::display_diskstream (boost::shared_ptr<Diskstream> ds)
{
playlist_change_connection.disconnect();
playlist_changed (ds);
playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
}
void
StreamView::playlist_modified ()
{
ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
redisplay_diskstream ();
}
void
StreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
{
ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
/* disconnect from old playlist */
for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
(*i).disconnect();
}
playlist_connections.clear();
undisplay_diskstream ();
/* draw it */
redisplay_diskstream ();
/* catch changes */
playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
}
void
StreamView::diskstream_changed ()
{
Track *t;
if ((t = _trackview.track()) != 0) {
Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), t->diskstream()));
} else {
Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
}
}
void
StreamView::apply_color (Gdk::Color& color, ColorTarget target)
{
list<RegionView *>::iterator i;
switch (target) {
case RegionColor:
region_color = color;
for (i = region_views.begin(); i != region_views.end(); ++i) {
(*i)->set_color (region_color);
}
break;
case StreamBaseColor:
stream_base_color = RGBA_TO_UINT (
color.get_red_p(), color.get_green_p(), color.get_blue_p(), 255);
canvas_rect->property_fill_color_rgba() = stream_base_color;
break;
}
}
void
StreamView::region_layered (RegionView* rv)
{
rv->get_canvas_group()->lower_to_bottom();
/* don't ever leave it at the bottom, since then it doesn't
get events - the parent group does instead ...
*/
/* this used to be + 1, but regions to the left ended up below
..something.. and couldn't receive events. why? good question.
*/
rv->get_canvas_group()->raise (rv->region()->layer() + 2);
}
void
StreamView::rec_enable_changed ()
{
Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
}
void
StreamView::sess_rec_enable_changed ()
{
Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
}
void
StreamView::transport_changed()
{
Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
}
void
StreamView::update_rec_box ()
{
if (rec_active && rec_rects.size() > 0) {
/* only update the last box */
RecBoxInfo & rect = rec_rects.back();
nframes_t at = _trackview.get_diskstream()->current_capture_end();
double xstart;
double xend;
switch (_trackview.track()->mode()) {
case Normal:
rect.length = at - rect.start;
xstart = _trackview.editor.frame_to_pixel (rect.start);
xend = _trackview.editor.frame_to_pixel (at);
break;
case Destructive:
rect.length = 2;
xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
xend = _trackview.editor.frame_to_pixel (at);
break;
}
rect.rectangle->property_x1() = xstart;
rect.rectangle->property_x2() = xend;
}
}
RegionView*
StreamView::find_view (boost::shared_ptr<const Region> region)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region() == region) {
return *i;
}
}
return 0;
}
void
StreamView::foreach_regionview (sigc::slot<void,RegionView*> slot)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
slot (*i);
}
}
void
StreamView::set_selected_regionviews (RegionSelection& regions)
{
bool selected;
// cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
selected = false;
for (RegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
if (*i == *ii) {
selected = true;
}
}
// cerr << "\tregion " << (*i)->region().name() << " selected = " << selected << endl;
(*i)->set_selected (selected);
}
}
void
StreamView::get_selectables (nframes_t start, nframes_t end, list<Selectable*>& results)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if ((*i)->region()->coverage(start, end) != OverlapNone) {
results.push_back (*i);
}
}
}
void
StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
{
for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
if (!sel.regions.contains (*i)) {
results.push_back (*i);
}
}
}