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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 "ardour_ui.h"
#include "audio_clock.h"
#include "editor.h"
#include "editor_drag.h"
#include "utils.h"
#include "verbose_cursor.h"
#include "i18n.h"
using namespace std;
using namespace ARDOUR;
VerboseCursor::VerboseCursor (Editor* editor)
: _editor (editor)
, _visible (false)
, _xoffset (0)
, _yoffset (0)
{
_canvas_item = new ArdourCanvas::NoEventText (*_editor->track_canvas->root());
_canvas_item->property_font_desc() = get_font_for_style (N_("VerboseCanvasCursor"));
_canvas_item->property_anchor() = Gtk::ANCHOR_NW;
}
ArdourCanvas::Item *
VerboseCursor::canvas_item () const
{
return _canvas_item;
}
void
VerboseCursor::set (string const & text, double x, double y)
{
set_text (text);
set_position (x, y);
}
void
VerboseCursor::set_text (string const & text)
{
_canvas_item->property_text() = text.c_str();
}
/** @param xoffset x offset to be applied on top of any set_position() call
* before the next show ().
* @param yoffset y offset as above.
*/
void
VerboseCursor::show (double xoffset, double yoffset)
{
_xoffset = xoffset;
_yoffset = yoffset;
if (_visible) {
return;
}
_canvas_item->raise_to_top ();
_canvas_item->show ();
_visible = true;
}
void
VerboseCursor::hide ()
{
_canvas_item->hide ();
_visible = false;
}
double
VerboseCursor::clamp_x (double x)
{
if (x < 0) {
x = 0;
} else {
x = min (_editor->_canvas_width - 200.0, x);
}
return x;
}
double
VerboseCursor::clamp_y (double y)
{
if (y < _editor->canvas_timebars_vsize) {
y = _editor->canvas_timebars_vsize;
} else {
y = min (_editor->_canvas_height - 50, y);
}
return y;
}
void
VerboseCursor::set_time (framepos_t frame, double x, double y)
{
char buf[128];
Timecode::Time timecode;
Timecode::BBT_Time bbt;
int hours, mins;
framepos_t frame_rate;
float secs;
if (_editor->_session == 0) {
return;
}
AudioClock::Mode m;
if (Profile->get_sae() || Profile->get_small_screen()) {
m = ARDOUR_UI::instance()->primary_clock->mode();
} else {
m = ARDOUR_UI::instance()->secondary_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), "%02" PRId32 ":%02" PRId32 ":%02" PRId32 ":%02" PRId32, timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
break;
case AudioClock::MinSec:
/* XXX this is copied from show_verbose_duration_cursor() */
frame_rate = _editor->_session->frame_rate();
hours = frame / (frame_rate * 3600);
frame = frame % (frame_rate * 3600);
mins = frame / (frame_rate * 60);
frame = frame % (frame_rate * 60);
secs = (float) frame / (float) frame_rate;
snprintf (buf, sizeof (buf), "%02" PRId32 ":%02" PRId32 ":%07.4f", hours, mins, secs);
break;
default:
snprintf (buf, sizeof(buf), "%" PRIi64, frame);
break;
}
set (buf, x, y);
}
void
VerboseCursor::set_duration (framepos_t start, framepos_t end, double x, double y)
{
char buf[128];
Timecode::Time timecode;
Timecode::BBT_Time sbbt;
Timecode::BBT_Time ebbt;
int hours, mins;
framepos_t distance, frame_rate;
float secs;
Meter meter_at_start (_editor->_session->tempo_map().meter_at(start));
if (_editor->_session == 0) {
return;
}
AudioClock::Mode m;
if (Profile->get_sae() || Profile->get_small_screen()) {
m = ARDOUR_UI::instance()->primary_clock->mode ();
} else {
m = ARDOUR_UI::instance()->secondary_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.beats_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), "%02" PRId32 ":%02" PRId32 ":%02" PRId32 ":%02" PRId32, timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
break;
case AudioClock::MinSec:
/* XXX this stuff should be elsewhere.. */
distance = end - start;
frame_rate = _editor->_session->frame_rate();
hours = distance / (frame_rate * 3600);
distance = distance % (frame_rate * 3600);
mins = distance / (frame_rate * 60);
distance = distance % (frame_rate * 60);
secs = (float) distance / (float) frame_rate;
snprintf (buf, sizeof (buf), "%02" PRId32 ":%02" PRId32 ":%07.4f", hours, mins, secs);
break;
default:
snprintf (buf, sizeof(buf), "%" PRIi64, end - start);
break;
}
set (buf, x, y);
}
void
VerboseCursor::set_color (uint32_t color)
{
_canvas_item->property_fill_color_rgba() = color;
}
/** Set the position of the verbose cursor. Any x/y offsets
* passed to the last call to show() will be applied to the
* coordinates passed in here.
*/
void
VerboseCursor::set_position (double x, double y)
{
_canvas_item->property_x() = clamp_x (x + _xoffset);
_canvas_item->property_y() = clamp_y (y + _yoffset);
}
bool
VerboseCursor::visible () const
{
return _visible;
}