13
0
livetrax/gtk2_ardour/editor_tempodisplay.cc
2007-01-29 20:02:43 +00:00

529 lines
13 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.
$Id$
*/
#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 "color.h"
#include "time_axis_view.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, 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, bool immediate_redraw)
{
if (!session) {
return;
}
ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::tempo_map_changed), ignored, immediate_redraw));
BBT_Time previous_beat, next_beat; // the beats previous to the leftmost frame and after the rightmost frame
session->bbt_time(leftmost_frame, previous_beat);
session->bbt_time(leftmost_frame + current_page_frames(), 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(leftmost_frame + current_page_frames()).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;
}
if (session) {
current_bbt_points = session->tempo_map().get_points (session->tempo_map().frame_time (previous_beat), session->tempo_map().frame_time (next_beat));
update_tempo_based_rulers ();
} else {
current_bbt_points = 0;
}
if (immediate_redraw) {
hide_measures ();
if (session && current_bbt_points) {
draw_measures ();
}
} else {
if (session && current_bbt_points) {
Glib::signal_idle().connect (mem_fun (*this, &Editor::lazy_hide_and_draw_measures));
} else {
hide_measures ();
}
}
}
void
Editor::redisplay_tempo ()
{
}
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);
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;
}
bool
Editor::lazy_hide_and_draw_measures ()
{
hide_measures ();
draw_measures ();
return false;
}
void
Editor::draw_measures ()
{
if (session == 0 || _show_measures == false) {
return;
}
TempoMap::BBTPointList::iterator i;
ArdourCanvas::SimpleLine *line;
gdouble xpos;
double x1, x2, y1, y2, beat_density;
uint32_t beats = 0;
uint32_t bars = 0;
uint32_t color;
if (current_bbt_points == 0 || current_bbt_points->empty()) {
return;
}
track_canvas.get_scroll_region (x1, y1, x2, y2);
y2 = TimeAxisView::hLargest*5000; // five thousand largest tracks should be enough.. :)
/* get the first bar spacing */
i = current_bbt_points->end();
i--;
bars = (*i).bar - (*current_bbt_points->begin()).bar;
beats = current_bbt_points->size() - bars;
beat_density = (beats * 10.0f) / track_canvas.get_width ();
if (beat_density > 4.0f) {
/* if the lines are too close together, they become useless
*/
return;
}
for (i = current_bbt_points->begin(); i != current_bbt_points->end(); ++i) {
switch ((*i).type) {
case TempoMap::Bar:
break;
case TempoMap::Beat:
if ((*i).beat == 1) {
color = color_map[cMeasureLineBar];
} else {
color = color_map[cMeasureLineBeat];
if (beat_density > 2.0) {
/* only draw beat lines if the gaps between beats are large.
*/
break;
}
}
xpos = frame_to_unit ((*i).frame);
line = get_time_line ();
line->property_x1() = xpos;
line->property_x2() = xpos;
line->property_y2() = y2;
line->property_color_rgba() = color;
//line->raise_to_top();
line->show();
break;
}
}
/* the cursors are always on top of everything */
cursor_group->raise_to_top();
time_line_group->lower_to_bottom();
return;
}
void
Editor::mouse_add_new_tempo_event (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"));
XMLNode &before = map.get_state();
map.add_tempo (Tempo (bpm), requested);
XMLNode &after = map.get_state();
session->add_command(new MementoCommand<TempoMap>(map, &before, &after));
commit_reversible_command ();
map.dump (cerr);
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
}
void
Editor::mouse_add_new_meter_event (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"));
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);
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
}
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 ();
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
}
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 ();
BBT_Time when;
tempo_dialog.get_bbt_time(when);
bpm = max (0.01, bpm);
begin_reversible_command (_("replace tempo mark"));
XMLNode &before = session->tempo_map().get_state();
session->tempo_map().replace_tempo (*section, Tempo (bpm));
session->tempo_map().move_tempo (*section, when);
XMLNode &after = session->tempo_map().get_state();
session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
commit_reversible_command ();
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
}
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 ();
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
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 ();
session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
return FALSE;
}