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livetrax/gtk2_ardour/editor_tempodisplay.cc

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/*
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.
$Id$
*/
#include <cstdio> // for sprintf, grrr
#include <cstdlib>
#include <cmath>
#include <string>
#include <climits>
#include <libgnomecanvasmm/libgnomecanvasmm.h>
#include <pbd/error.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 "i18n.h"
using namespace std;
using namespace sigc;
using namespace ARDOUR;
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)
{
for (Metrics::const_iterator i = metrics.begin(); i != metrics.end(); ++i) {
const MeterSection *ms;
const TempoSection *ts;
char buf[64];
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, color_map[cMeterMarker], 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, color_map[cTempoMarker], buf,
*(const_cast<TempoSection*>(ts))));
}
}
}
void
Editor::tempo_map_changed (Change ignored)
{
ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::tempo_map_changed), ignored));
if (current_bbt_points) {
delete current_bbt_points;
current_bbt_points = 0;
}
if (session) {
current_bbt_points = session->tempo_map().get_points (leftmost_frame, leftmost_frame + current_page_frames());
} else {
current_bbt_points = 0;
}
redisplay_tempo ();
}
void
Editor::redisplay_tempo ()
{
update_tempo_based_rulers ();
remove_metric_marks ();
hide_measures ();
if (session && current_bbt_points) {
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
draw_measures ();
}
}
void
Editor::hide_measures ()
{
for (TimeLineList::iterator i = used_measure_lines.begin(); i != used_measure_lines.end(); ++i) {
(*i)->hide();
free_measure_lines.push_back (*i);
}
used_measure_lines.clear ();
}
ArdourCanvas::SimpleLine *
Editor::get_time_line ()
{
ArdourCanvas::SimpleLine *line;
if (free_measure_lines.empty()) {
line = new ArdourCanvas::SimpleLine (*time_line_group);
// cerr << "measure line @ " << line << endl;
used_measure_lines.push_back (line);
} else {
line = free_measure_lines.front();
free_measure_lines.erase (free_measure_lines.begin());
used_measure_lines.push_back (line);
}
return line;
}
void
Editor::draw_measures ()
{
if (session == 0 || _show_measures == false) {
return;
}
TempoMap::BBTPointList::iterator i;
TempoMap::BBTPointList *all_bbt_points;
ArdourCanvas::SimpleLine *line;
gdouble xpos, last_xpos;
uint32_t cnt;
uint32_t color;
if (current_bbt_points == 0 || current_bbt_points->empty()) {
return;
}
all_bbt_points = session->tempo_map().get_points (leftmost_frame, leftmost_frame + current_page_frames());
cnt = 0;
last_xpos = 0;
/* get the first bar spacing */
gdouble last_beat = DBL_MAX;
gdouble beat_spacing = 0;
for (i = all_bbt_points->begin(); i != all_bbt_points->end() && beat_spacing == 0; ++i) {
TempoMap::BBTPoint& p = (*i);
switch (p.type) {
case TempoMap::Bar:
break;
case TempoMap::Beat:
xpos = p.frame / (gdouble) frames_per_unit;
if (last_beat < xpos) {
beat_spacing = xpos - last_beat;
}
last_beat = xpos;
}
}
for (i = all_bbt_points->begin(); i != all_bbt_points->end(); ++i) {
TempoMap::BBTPoint& p = (*i);
switch (p.type) {
case TempoMap::Bar:
break;
case TempoMap::Beat:
xpos = p.frame / (gdouble) frames_per_unit;
if (p.beat == 1) {
color = color_map[cMeasureLineBeat];
} else {
color = color_map[cMeasureLineBar];
/* only draw beat lines if the gaps between beats
are large.
*/
if (beat_spacing < 25.0) {
break;
}
}
if (cnt == 0 || xpos - last_xpos > 4.0) {
line = get_time_line ();
line->property_x1() = xpos;
line->property_x2() = xpos;
line->property_y2() = canvas_height;
line->property_color_rgba() = color;
line->raise_to_top();
line->show();
last_xpos = xpos;
++cnt;
}
break;
}
}
delete all_bbt_points;
/* the cursors are always on top of everything */
cursor_group->raise_to_top();
time_line_group->lower_to_bottom();
}
void
Editor::mouse_add_new_tempo_event (jack_nframes_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);
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 ();
bpm = max (0.01, bpm);
tempo_dialog.get_bbt_time (requested);
begin_reversible_command (_("add tempo mark"));
session->add_undo (map.get_memento());
map.add_tempo (Tempo (bpm), requested);
session->add_redo_no_execute (map.get_memento());
commit_reversible_command ();
map.dump (cerr);
}
void
Editor::mouse_add_new_meter_event (jack_nframes_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);
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"));
session->add_undo (map.get_memento());
map.add_meter (Meter (bpb, note_type), requested);
session->add_redo_no_execute (map.get_memento());
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);
// GTK2FIX
// meter_dialog.realize ();
// meter_dialog.get_window()->set_decorations (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 ();
begin_reversible_command (_("replace tempo mark"));
session->add_undo (session->tempo_map().get_memento());
session->tempo_map().replace_meter (*section, Meter (bpb, note_type));
session->add_redo_no_execute (session->tempo_map().get_memento());
commit_reversible_command ();
}
void
Editor::edit_tempo_section (TempoSection* section)
{
TempoDialog tempo_dialog (*section, _("done"));
tempo_dialog.set_position (Gtk::WIN_POS_MOUSE);
// GTK2FIX
// tempo_dialog.realize ();
// tempo_dialog.get_window()->set_decorations (Gdk::WMDecoration (Gdk::DECOR_BORDER|Gdk::DECOR_RESIZEH));
ensure_float (tempo_dialog);
switch (tempo_dialog.run ()) {
case RESPONSE_ACCEPT:
break;
default:
return;
}
double bpm = tempo_dialog.get_bpm ();
BBT_Time when;
tempo_dialog.get_bbt_time(when);
bpm = max (0.01, bpm);
begin_reversible_command (_("replace tempo mark"));
session->add_undo (session->tempo_map().get_memento());
session->tempo_map().replace_tempo (*section, Tempo (bpm));
session->tempo_map().move_tempo (*section, when);
session->add_redo_no_execute (session->tempo_map().get_memento());
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"));
session->add_undo (session->tempo_map().get_memento());
session->tempo_map().remove_tempo (*section);
session->add_redo_no_execute (session->tempo_map().get_memento());
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"));
session->add_undo (session->tempo_map().get_memento());
session->tempo_map().remove_meter (*section);
session->add_redo_no_execute (session->tempo_map().get_memento());
commit_reversible_command ();
return FALSE;
}