livetrax/gtk2_ardour/export_timespan_selector.cc

/*
    Copyright (C) 2008 Paul Davis
    Author: Sakari Bergen

    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 "export_timespan_selector.h"

#include "ardour_ui.h"

#include <ardour/location.h>
#include <ardour/types.h>
#include <ardour/session.h>
#include <ardour/export_handler.h>
#include <ardour/export_timespan.h>

#include <pbd/enumwriter.h>
#include <pbd/convert.h>

#include <sstream>
#include <iomanip>

#include "i18n.h"

using namespace ARDOUR;
using namespace PBD;

ExportTimespanSelector::ExportTimespanSelector () :
  time_format_label (_("Show Times as:"), Gtk::ALIGN_LEFT)
{

	option_hbox.pack_start (time_format_label, false, false, 0);
	option_hbox.pack_start (time_format_combo, false, false, 6);
	
	range_scroller.add (range_view);
	range_scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
	
	pack_start (option_hbox, false, false, 0);
	pack_start (range_scroller, true, true, 6);
	
	/*** Combo boxes ***/
	
	Gtk::TreeModel::iterator iter;
	Gtk::TreeModel::Row row;
	
	/* Time format combo */
	
	time_format_list = Gtk::ListStore::create (time_format_cols);
	time_format_combo.set_model (time_format_list);
	
	iter = time_format_list->append();
	row = *iter;
	row[time_format_cols.format] = ExportProfileManager::SMPTE;
	row[time_format_cols.label] = X_("Timecode");
	
	iter = time_format_list->append();
	row = *iter;
	row[time_format_cols.format] = ExportProfileManager::MinSec;
	row[time_format_cols.label] = _("Minutes:Seconds");
	
	iter = time_format_list->append();
	row = *iter;
	row[time_format_cols.format] = ExportProfileManager::BBT;
	row[time_format_cols.label] = _("Bars:Beats");
	
	time_format_combo.pack_start (time_format_cols.label);
	time_format_combo.set_active (0);
	
	time_format_combo.signal_changed().connect (sigc::mem_fun (*this, &ExportTimespanSelector::change_time_format));
	
	/* Range view */
	
	range_list = Gtk::ListStore::create (range_cols);
	range_view.set_model (range_list);
	range_view.set_headers_visible (false);
	
	range_view.append_column_editable ("", range_cols.selected);
	range_view.append_column_editable ("", range_cols.name);
	
	Gtk::CellRendererText * label_render = Gtk::manage (new Gtk::CellRendererText());
	Gtk::TreeView::Column * label_col = Gtk::manage (new Gtk::TreeView::Column ("", *label_render));
	label_col->add_attribute (label_render->property_markup(), range_cols.label);
	range_view.append_column (*label_col);

	if (Gtk::CellRendererToggle * renderer = dynamic_cast<Gtk::CellRendererToggle *> (range_view.get_column_cell_renderer (0))) {
		renderer->signal_toggled().connect (sigc::hide (sigc::mem_fun (*this, &ExportTimespanSelector::update_selection)));
	}
	if (Gtk::CellRendererText * renderer = dynamic_cast<Gtk::CellRendererText *> (range_view.get_column_cell_renderer (1))) {
		renderer->signal_edited().connect (sigc::mem_fun (*this, &ExportTimespanSelector::update_range_name));
	}
	
}

ExportTimespanSelector::~ExportTimespanSelector ()
{

}

void
ExportTimespanSelector::set_state (ARDOUR::ExportProfileManager::TimespanStatePtr const state_, ARDOUR::Session * session_)
{
	state = state_;
	session = session_;

	fill_range_list ();
	set_selection_from_state ();
	
	CriticalSelectionChanged();
}

void
ExportTimespanSelector::select_one_range (Glib::ustring id)
{
	if (!state) { return; }
	
	range_view.remove_column (*range_view.get_column (0));
	
	Glib::ustring real_id;
	
	if (!id.compare (X_("session"))) {
		real_id = state->session_range->id().to_s();
	} else if (!id.compare (X_("selection"))) {
		real_id = state->selection_range->id().to_s();
	} else {
		real_id = id;
	}
	
	for (Gtk::ListStore::Children::iterator it = range_list->children().begin(); it != range_list->children().end();) {
		if (!it->get_value (range_cols.location)->id().to_s().compare (real_id)) {
			it->set_value (range_cols.selected, true);
			++it;
		} else {
			Gtk::ListStore::Children::iterator temp = it++;
			range_list->erase (temp);
		}
	}
	
	int x_offset, y_offset, width, height;
	Gtk::CellRenderer * renderer = *range_view.get_column(0)->get_cell_renderers().begin();
	renderer->get_size (range_view, x_offset, y_offset, width, height);
	range_scroller.set_size_request (-1, height);
	range_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_NEVER);
	
	update_selection();
}

void
ExportTimespanSelector::fill_range_list ()
{
	range_list->clear();

	Gtk::TreeModel::iterator iter;
	Gtk::TreeModel::Row row;
	for (LocationList::const_iterator it = state->ranges->begin(); it != state->ranges->end(); ++it) {
		iter = range_list->append();
		row = *iter;
		
		row[range_cols.location] = *it;
		row[range_cols.selected] = false;
		row[range_cols.name] = (*it)->name();
		row[range_cols.label] = construct_label (*it);
	}
}

void
ExportTimespanSelector::set_selection_from_state ()
{
	Gtk::TreeModel::Children::iterator tree_it;
	
	for (TimespanList::iterator it = state->timespans->begin(); it != state->timespans->end(); ++it) {
		ustring id = (*it)->range_id();
		for (tree_it = range_list->children().begin(); tree_it != range_list->children().end(); ++tree_it) {
			Location * loc = tree_it->get_value (range_cols.location);
			
			if ((!id.compare ("session") && loc == state->session_range.get()) ||
			    (!id.compare ("selection") && loc == state->selection_range.get()) ||
			    (!id.compare (loc->id().to_s()))) {
				tree_it->set_value (range_cols.selected, true);
			}
		}
	}
	
	for (tree_it = time_format_list->children().begin(); tree_it != time_format_list->children().end(); ++tree_it) {
		if (tree_it->get_value (time_format_cols.format) == state->time_format) {
			time_format_combo.set_active (tree_it);
		}
	}
}

void
ExportTimespanSelector::update_selection ()
{
	update_timespans ();
	CriticalSelectionChanged ();
}

void
ExportTimespanSelector::update_timespans ()
{
	state->timespans->clear();
	
	TimespanPtr span;
	HandlerPtr handler = session->get_export_handler();
	
	for (Gtk::TreeStore::Children::iterator it = range_list->children().begin(); it != range_list->children().end(); ++it) {
		if (it->get_value (range_cols.selected)) {
			span = handler->add_timespan();
			Location * loc = it->get_value (range_cols.location);
			
			Glib::ustring id;
			if (loc == state->session_range.get()) {
				id = "session";
			} else if (loc == state->selection_range.get()) {
				id = "selection";
			} else {
				id = loc->id().to_s();
			}
			
			span->set_range (loc->start(), loc->end());
			span->set_name (loc->name());
			span->set_range_id (id);
			state->timespans->push_back (span);
		}
	}
}

void
ExportTimespanSelector::change_time_format ()
{
	state->time_format = time_format_combo.get_active()->get_value (time_format_cols.format);

	for (Gtk::ListStore::Children::iterator it = range_list->children().begin(); it != range_list->children().end(); ++it) {
		Location * location = it->get_value (range_cols.location);
		it->set_value (range_cols.label, construct_label (location));
	}
}

Glib::ustring
ExportTimespanSelector::construct_label (ARDOUR::Location const * location)
{
	Glib::ustring label;
	Glib::ustring start;
	Glib::ustring end;
	
	nframes_t start_frame = location->start();
	nframes_t end_frame = location->end();
	
	switch (state->time_format) {
	  case AudioClock::BBT:
		start = bbt_str (start_frame);
		end = bbt_str (end_frame);
		break;
	
	  case AudioClock::SMPTE:
		start = smpte_str (start_frame);
		end = smpte_str (end_frame);
		break;
	
	  case AudioClock::MinSec:
		start = ms_str (start_frame);
		end = ms_str (end_frame);
		break;
	
	  case AudioClock::Frames:
		start = to_string (start_frame, std::dec);
		end = to_string (end_frame, std::dec);
		break;
	
	  case AudioClock::Off:
		break;
	}
	
	// label += _("from ");
	
	// label += "<span color=\"#7fff7f\">";
	label += start;
// 	label += "</span>";
	
	label += _(" to ");
	
// 	label += "<span color=\"#7fff7f\">";
	label += end;
// 	label += "</span>";
	
	return label;
}


Glib::ustring
ExportTimespanSelector::bbt_str (nframes_t frames)
{
	if (!session) {
		return "Error!";
	}
	
	std::ostringstream oss;
	BBT_Time time;
	
	session->bbt_time (frames, time);
	
	oss << std::setfill('0') << std::right <<
	  std::setw(3) <<
	  time.bars << "|" <<
	  std::setw(2) <<
	  time.beats << "|" <<
	  std::setw(4) <<
	  time.ticks;
	
	return oss.str();
}

Glib::ustring
ExportTimespanSelector::smpte_str (nframes_t frames)
{
	if (!session) {
		return "Error!";
	}
	
	std::ostringstream oss;
	SMPTE::Time time;
	
	session->smpte_time (frames, time);
	
	oss << std::setfill('0') << std::right <<
	  std::setw(2) <<
	  time.hours << ":" <<
	  std::setw(2) <<
	  time.minutes << ":" <<
	  std::setw(2) <<
	  time.seconds << ":" <<
	  std::setw(2) <<
	  time.frames;
	
	return oss.str();
}

Glib::ustring
ExportTimespanSelector::ms_str (nframes_t frames)
{
	if (!session) {
		return "Error!";
	}
	
	std::ostringstream oss;
	nframes_t left;
	int hrs;
	int mins;
	int secs;
	int sec_promilles;
	
	left = frames;
	hrs = (int) floor (left / (session->frame_rate() * 60.0f * 60.0f));
	left -= (nframes_t) floor (hrs * session->frame_rate() * 60.0f * 60.0f);
	mins = (int) floor (left / (session->frame_rate() * 60.0f));
	left -= (nframes_t) floor (mins * session->frame_rate() * 60.0f);
	secs = (int) floor (left / (float) session->frame_rate());
	left -= (nframes_t) floor (secs * session->frame_rate());
	sec_promilles = (int) (left * 1000 / (float) session->frame_rate() + 0.5);
	
	oss << std::setfill('0') << std::right <<
	  std::setw(2) <<
	  hrs << ":" <<
	  std::setw(2) <<
	  mins << ":" <<
	  std::setw(2) <<
	  secs << "." <<
	  std::setw(3) <<
	  sec_promilles;
	
	return oss.str();
}

void
ExportTimespanSelector::update_range_name (Glib::ustring const & path, Glib::ustring const & new_text)
{
	Gtk::TreeStore::iterator it = range_list->get_iter (path);
	it->get_value (range_cols.location)->set_name (new_text);
	
	CriticalSelectionChanged();
}