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livetrax/gtk2_ardour/verbose_cursor.cc

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/*
Copyright (C) 2000-2011 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 <string>
#include <gtkmm/enums.h>
#include "pbd/stacktrace.h"
#include "ardour/profile.h"
#include "canvas/debug.h"
#include "canvas/scroll_group.h"
#include "canvas/tracking_text.h"
#include "ardour_ui.h"
#include "audio_clock.h"
#include "editor.h"
#include "editor_drag.h"
#include "global_signals.h"
#include "main_clock.h"
#include "verbose_cursor.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
VerboseCursor::VerboseCursor (Editor* editor)
: _editor (editor)
{
_canvas_item = new ArdourCanvas::TrackingText (_editor->get_noscroll_group());
CANVAS_DEBUG_NAME (_canvas_item, "verbose canvas cursor");
_canvas_item->set_font_description (Pango::FontDescription (ARDOUR_UI::config()->get_LargerBoldFont()));
color_handler ();
ARDOUR_UI_UTILS::ColorsChanged.connect (sigc::mem_fun (*this, &VerboseCursor::color_handler));
}
void
VerboseCursor::color_handler ()
{
_canvas_item->set_color (ARDOUR_UI::config()->get_VerboseCanvasCursor());
}
ArdourCanvas::Item *
VerboseCursor::canvas_item () const
{
return _canvas_item;
}
/** Set the contents of the cursor.
*/
void
VerboseCursor::set (string const & text)
{
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_canvas_item->set (text);
}
void
VerboseCursor::show ()
{
_canvas_item->show_and_track (true, true);
_canvas_item->parent()->raise_to_top ();
}
void
VerboseCursor::hide ()
{
_canvas_item->hide ();
_canvas_item->parent()->lower_to_bottom ();
/* reset back to a sensible default for the next time we display the VC */
_canvas_item->set_offset (ArdourCanvas::Duple (10, 10));
}
void
VerboseCursor::set_offset (ArdourCanvas::Duple const & d)
{
_canvas_item->set_offset (d);
}
void
VerboseCursor::set_time (framepos_t frame)
{
char buf[128];
Timecode::Time timecode;
Timecode::BBT_Time bbt;
if (_editor->_session == 0) {
return;
}
/* Take clock mode from the primary clock */
AudioClock::Mode m = ARDOUR_UI::instance()->primary_clock->mode();
switch (m) {
case AudioClock::BBT:
_editor->_session->bbt_time (frame, bbt);
snprintf (buf, sizeof (buf), "%02" PRIu32 "|%02" PRIu32 "|%02" PRIu32, bbt.bars, bbt.beats, bbt.ticks);
break;
case AudioClock::Timecode:
_editor->_session->timecode_time (frame, timecode);
snprintf (buf, sizeof (buf), "%s", Timecode::timecode_format_time (timecode).c_str());
break;
case AudioClock::MinSec:
AudioClock::print_minsec (frame, buf, sizeof (buf), _editor->_session->frame_rate());
break;
default:
snprintf (buf, sizeof(buf), "%" PRIi64, frame);
break;
}
_canvas_item->set (buf);
}
void
VerboseCursor::set_duration (framepos_t start, framepos_t end)
{
char buf[128];
Timecode::Time timecode;
Timecode::BBT_Time sbbt;
Timecode::BBT_Time ebbt;
Meter meter_at_start (_editor->_session->tempo_map().meter_at(start));
if (_editor->_session == 0) {
return;
}
AudioClock::Mode m = ARDOUR_UI::instance()->primary_clock->mode ();
switch (m) {
case AudioClock::BBT:
{
_editor->_session->bbt_time (start, sbbt);
_editor->_session->bbt_time (end, ebbt);
/* subtract */
/* XXX this computation won't work well if the
user makes a selection that spans any meter changes.
*/
/* use signed integers for the working values so that
we can underflow.
*/
int ticks = ebbt.ticks;
int beats = ebbt.beats;
int bars = ebbt.bars;
ticks -= sbbt.ticks;
if (ticks < 0) {
ticks += int (Timecode::BBT_Time::ticks_per_beat);
--beats;
}
beats -= sbbt.beats;
if (beats < 0) {
beats += int (meter_at_start.divisions_per_bar());
--bars;
}
bars -= sbbt.bars;
snprintf (buf, sizeof (buf), "%02" PRIu32 "|%02" PRIu32 "|%02" PRIu32, bars, beats, ticks);
break;
}
case AudioClock::Timecode:
_editor->_session->timecode_duration (end - start, timecode);
snprintf (buf, sizeof (buf), "%s", Timecode::timecode_format_time (timecode).c_str());
break;
case AudioClock::MinSec:
AudioClock::print_minsec (end - start, buf, sizeof (buf), _editor->_session->frame_rate());
break;
default:
snprintf (buf, sizeof(buf), "%" PRIi64, end - start);
break;
}
_canvas_item->set (buf);
}
bool
VerboseCursor::visible () const
{
return _canvas_item->visible();
}