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livetrax/gtk2_ardour/editor_tempodisplay.cc
David Robillard 95d82d7a16 An actual tempo line cache (not quite perfect when scrolling left, but miles ahead of the previous one didn't really help at all).
Tempo line updating done immediately/directly rather than in an idle handler.
Looking for feedback how this works for other people, performance wise...
Feel-wise, the obvious lag between scrolling and tempo lines being drawn is now gone.


git-svn-id: svn://localhost/ardour2/branches/3.0@3799 d708f5d6-7413-0410-9779-e7cbd77b26cf
2008-09-23 22:23:39 +00:00

449 lines
12 KiB
C++

/*
Copyright (C) 2002 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 <cstdio> // for sprintf, grrr
#include <cstdlib>
#include <cmath>
#include <string>
#include <climits>
#include <libgnomecanvasmm.h>
#include <pbd/error.h>
#include <pbd/memento_command.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/gtk_ui.h>
#include <ardour/session.h>
#include <ardour/tempo.h>
#include <gtkmm2ext/doi.h>
#include <gtkmm2ext/utils.h>
#include "editor.h"
#include "marker.h"
#include "simpleline.h"
#include "tempo_dialog.h"
#include "rgb_macros.h"
#include "gui_thread.h"
#include "time_axis_view.h"
#include "ardour_ui.h"
#include "tempo_lines.h"
#include "i18n.h"
using namespace std;
using namespace sigc;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace Editing;
void
Editor::remove_metric_marks ()
{
/* don't delete these while handling events, just punt till the GUI is idle */
for (Marks::iterator x = metric_marks.begin(); x != metric_marks.end(); ++x) {
delete_when_idle (*x);
}
metric_marks.clear ();
}
void
Editor::draw_metric_marks (const Metrics& metrics)
{
const MeterSection *ms;
const TempoSection *ts;
char buf[64];
remove_metric_marks ();
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
if ((ms = dynamic_cast<const MeterSection*>(*i)) != 0) {
snprintf (buf, sizeof(buf), "%g/%g", ms->beats_per_bar(), ms->note_divisor ());
metric_marks.push_back (new MeterMarker (*this, *meter_group, ARDOUR_UI::config()->canvasvar_MeterMarker.get(), buf,
*(const_cast<MeterSection*>(ms))));
} else if ((ts = dynamic_cast<const TempoSection*>(*i)) != 0) {
snprintf (buf, sizeof (buf), "%.2f", ts->beats_per_minute());
metric_marks.push_back (new TempoMarker (*this, *tempo_group, ARDOUR_UI::config()->canvasvar_TempoMarker.get(), buf,
*(const_cast<TempoSection*>(ts))));
}
}
}
void
Editor::tempo_map_changed (Change ignored)
{
if (!session) {
return;
}
ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::tempo_map_changed), ignored));
if (tempo_lines)
tempo_lines->tempo_map_changed();
compute_current_bbt_points(leftmost_frame, leftmost_frame + (nframes_t)(edit_packer.get_width() * frames_per_unit));
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
update_tempo_based_rulers ();
redraw_measures ();
}
void
Editor::redisplay_tempo (bool immediate_redraw)
{
if (!session) {
return;
}
compute_current_bbt_points (leftmost_frame, leftmost_frame + (nframes_t)(edit_packer.get_width() * frames_per_unit)); // redraw rulers and measures
redraw_measures();
update_tempo_based_rulers ();
}
void
Editor::compute_current_bbt_points (nframes_t leftmost, nframes_t rightmost)
{
if (!session) {
return;
}
BBT_Time previous_beat, next_beat; // the beats previous to the leftmost frame and after the rightmost frame
session->bbt_time(leftmost, previous_beat);
session->bbt_time(rightmost, next_beat);
if (previous_beat.beats > 1) {
previous_beat.beats -= 1;
} else if (previous_beat.bars > 1) {
previous_beat.bars--;
previous_beat.beats += 1;
}
previous_beat.ticks = 0;
if (session->tempo_map().meter_at(rightmost).beats_per_bar () > next_beat.beats + 1) {
next_beat.beats += 1;
} else {
next_beat.bars += 1;
next_beat.beats = 1;
}
next_beat.ticks = 0;
if (current_bbt_points) {
delete current_bbt_points;
current_bbt_points = 0;
}
current_bbt_points = session->tempo_map().get_points (session->tempo_map().frame_time (previous_beat), session->tempo_map().frame_time (next_beat) + 1);
}
void
Editor::hide_measures ()
{
if (tempo_lines)
tempo_lines->hide();
}
bool
Editor::redraw_measures ()
{
draw_measures ();
return false;
}
void
Editor::draw_measures ()
{
if (session == 0 || _show_measures == false ||
!current_bbt_points || current_bbt_points->empty()) {
return;
}
if (current_bbt_points == 0 || current_bbt_points->empty()) {
return;
}
if (tempo_lines == 0) {
tempo_lines = new TempoLines(*track_canvas, time_line_group);
}
tempo_lines->draw(*current_bbt_points, frames_per_unit);
}
void
Editor::mouse_add_new_tempo_event (nframes64_t frame)
{
if (session == 0) {
return;
}
TempoMap& map(session->tempo_map());
TempoDialog tempo_dialog (map, frame, _("add"));
tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
//this causes compiz to display no border.
//tempo_dialog.signal_realize().connect (bind (sigc::ptr_fun (set_decoration), &tempo_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
ensure_float (tempo_dialog);
switch (tempo_dialog.run()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpm = 0;
BBT_Time requested;
bpm = tempo_dialog.get_bpm ();
double nt = tempo_dialog.get_note_type();
bpm = max (0.01, bpm);
tempo_dialog.get_bbt_time (requested);
begin_reversible_command (_("add tempo mark"));
XMLNode &before = map.get_state();
map.add_tempo (Tempo (bpm,nt), requested);
XMLNode &after = map.get_state();
session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
commit_reversible_command ();
//map.dump (cerr);
}
void
Editor::mouse_add_new_meter_event (nframes64_t frame)
{
if (session == 0) {
return;
}
TempoMap& map(session->tempo_map());
MeterDialog meter_dialog (map, frame, _("add"));
meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
//this causes compiz to display no border..
//meter_dialog.signal_realize().connect (bind (sigc::ptr_fun (set_decoration), &meter_dialog, Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH)));
ensure_float (meter_dialog);
switch (meter_dialog.run ()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpb = meter_dialog.get_bpb ();
bpb = max (1.0, bpb); // XXX is this a reasonable limit?
double note_type = meter_dialog.get_note_type ();
BBT_Time requested;
meter_dialog.get_bbt_time (requested);
begin_reversible_command (_("add meter mark"));
XMLNode &before = map.get_state();
map.add_meter (Meter (bpb, note_type), requested);
session->add_command(new MementoCommand<TempoMap>(map, &before, &map.get_state()));
commit_reversible_command ();
//map.dump (cerr);
}
void
Editor::remove_tempo_marker (ArdourCanvas::Item* item)
{
Marker* marker;
TempoMarker* tempo_marker;
if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
/*NOTREACHED*/
}
if (tempo_marker->tempo().movable()) {
Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::real_remove_tempo_marker), &tempo_marker->tempo()));
}
}
void
Editor::edit_meter_section (MeterSection* section)
{
MeterDialog meter_dialog (*section, _("done"));
meter_dialog.set_position (Gtk::WIN_POS_MOUSE);
ensure_float (meter_dialog);
switch (meter_dialog.run()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpb = meter_dialog.get_bpb ();
bpb = max (1.0, bpb); // XXX is this a reasonable limit?
double note_type = meter_dialog.get_note_type ();
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = session->tempo_map().get_state();
session->tempo_map().replace_meter (*section, Meter (bpb, note_type));
XMLNode &after = session->tempo_map().get_state();
session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
commit_reversible_command ();
}
void
Editor::edit_tempo_section (TempoSection* section)
{
TempoDialog tempo_dialog (*section, _("done"));
tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
ensure_float (tempo_dialog);
switch (tempo_dialog.run ()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpm = tempo_dialog.get_bpm ();
double nt = tempo_dialog.get_note_type ();
BBT_Time when;
tempo_dialog.get_bbt_time(when);
bpm = max (0.01, bpm);
cerr << "Editing tempo section to be at " << when << endl;
session->tempo_map().dump (cerr);
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = session->tempo_map().get_state();
session->tempo_map().replace_tempo (*section, Tempo (bpm,nt));
session->tempo_map().dump (cerr);
session->tempo_map().move_tempo (*section, when);
session->tempo_map().dump (cerr);
XMLNode &after = session->tempo_map().get_state();
session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
commit_reversible_command ();
}
void
Editor::edit_tempo_marker (ArdourCanvas::Item *item)
{
Marker* marker;
TempoMarker* tempo_marker;
if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((tempo_marker = dynamic_cast<TempoMarker*> (marker)) == 0) {
fatal << _("programming error: marker for tempo is not a tempo marker!") << endmsg;
/*NOTREACHED*/
}
edit_tempo_section (&tempo_marker->tempo());
}
void
Editor::edit_meter_marker (ArdourCanvas::Item *item)
{
Marker* marker;
MeterMarker* meter_marker;
if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: tempo marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
/*NOTREACHED*/
}
edit_meter_section (&meter_marker->meter());
}
gint
Editor::real_remove_tempo_marker (TempoSection *section)
{
begin_reversible_command (_("remove tempo mark"));
XMLNode &before = session->tempo_map().get_state();
session->tempo_map().remove_tempo (*section);
XMLNode &after = session->tempo_map().get_state();
session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
commit_reversible_command ();
return FALSE;
}
void
Editor::remove_meter_marker (ArdourCanvas::Item* item)
{
Marker* marker;
MeterMarker* meter_marker;
if ((marker = reinterpret_cast<Marker *> (item->get_data ("marker"))) == 0) {
fatal << _("programming error: meter marker canvas item has no marker object pointer!") << endmsg;
/*NOTREACHED*/
}
if ((meter_marker = dynamic_cast<MeterMarker*> (marker)) == 0) {
fatal << _("programming error: marker for meter is not a meter marker!") << endmsg;
/*NOTREACHED*/
}
if (meter_marker->meter().movable()) {
Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::real_remove_meter_marker), &meter_marker->meter()));
}
}
gint
Editor::real_remove_meter_marker (MeterSection *section)
{
begin_reversible_command (_("remove tempo mark"));
XMLNode &before = session->tempo_map().get_state();
session->tempo_map().remove_meter (*section);
XMLNode &after = session->tempo_map().get_state();
session->add_command(new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
commit_reversible_command ();
return FALSE;
}