significant changes in code to handle import/embedding - much cleaner and less code, plus the import progress bar now works; unify response handling for Gtkmm2ext::Choice

git-svn-id: svn://localhost/trunk/ardour2@415 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 395 insertions, 0 deletions

diff --git a/gtk2_ardour/editor_audio_import.cc b/gtk2_ardour/editor_audio_import.cc
new file mode 100644
index 0000000000..658bb6fe74
--- /dev/null
+++ b/gtk2_ardour/editor_audio_import.cc
@@ -0,0 +1,395 @@
+/*
+    Copyright (C) 2000-2006 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 <pbd/pthread_utils.h>
+#include <pbd/basename.h>
+
+#include <gtkmm2ext/choice.h>
+
+#include <ardour/session.h>
+#include <ardour/audioplaylist.h>
+#include <ardour/audioregion.h>
+#include <ardour/diskstream.h>
+#include <ardour/filesource.h>
+#include <ardour/externalsource.h>
+#include <ardour/utils.h>
+#include <ardour/audio_track.h>
+#include <ardour/audioplaylist.h>
+
+#include "ardour_ui.h"
+#include "editor.h"
+#include "sfdb_ui.h"
+#include "editing.h"
+#include "audio_time_axis.h"
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+using namespace sigc;
+using namespace Gtk;
+using namespace Editing;
+
+/* Functions supporting the incorporation of external (non-captured) audio material into ardour */
+
+void
+Editor::add_external_audio_action (ImportMode mode)
+{
+	jack_nframes_t& pos = edit_cursor->current_frame;
+	AudioTrack* track = 0;
+
+	if (!selection->tracks.empty()) {
+		AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.front());
+		if (atv) {
+			track = atv->audio_track();
+		}
+	}
+
+	bring_in_external_audio (mode, track, pos, false);
+}
+
+void
+Editor::bring_in_external_audio (ImportMode mode, AudioTrack* track, jack_nframes_t& pos, bool prompt)
+{
+	if (session == 0) {
+		MessageDialog msg (0, _("You can't import or embed an audiofile until you have a session loaded."));
+		msg.run ();
+		return;
+	}
+
+	SoundFileOmega sfdb (_("Add existing audio to session"));
+	sfdb.set_mode (mode);
+
+	switch (sfdb.run()) {
+	case SoundFileOmega::ResponseImport:
+		do_import (sfdb.get_paths(), sfdb.get_split(), mode, track, pos, prompt);
+		break;
+		
+	case SoundFileOmega::ResponseEmbed:
+		do_embed (sfdb.get_paths(), sfdb.get_split(), mode, track, pos, prompt);
+		break;
+
+	default:
+		break;
+	}
+}
+
+void
+Editor::do_import (vector<Glib::ustring> paths, bool split, ImportMode mode, AudioTrack* track, jack_nframes_t& pos, bool prompt)
+{
+	/* SFDB sets "multichan" to true to indicate "split channels"
+	   so reverse the setting to match the way libardour
+	   interprets it.
+	*/
+	
+	import_status.multichan = !split;
+
+	if (interthread_progress_window == 0) {
+		build_interthread_progress_window ();
+	}
+	
+	/* for each path that was selected, import it and then potentially create a new track
+	   containing the new region as the sole contents.
+	*/
+
+	for (vector<Glib::ustring>::iterator i = paths.begin(); i != paths.end(); ++i ) {
+		import_sndfile (*i, mode, track, pos);
+	}
+
+	interthread_progress_window->hide_all ();
+}
+
+void
+Editor::do_embed (vector<Glib::ustring> paths, bool split, ImportMode mode, AudioTrack* track, jack_nframes_t& pos, bool prompt)
+{
+	bool multiple_files = paths.size() > 1;
+	bool check_sample_rate = true;
+	
+	for (vector<Glib::ustring>::iterator i = paths.begin(); i != paths.end(); ++i) {
+		embed_sndfile (*i, split, multiple_files, check_sample_rate, mode, track, pos, prompt);
+	}
+
+	session->save_state ("");
+}
+
+void
+Editor::import_sndfile (Glib::ustring path, ImportMode mode, AudioTrack* track, jack_nframes_t& pos)
+{
+	interthread_progress_window->set_title (string_compose (_("ardour: importing %1"), path));
+	interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
+	interthread_progress_window->show_all ();
+	interthread_progress_bar.set_fraction (0.0f);
+	interthread_cancel_label.set_text (_("Cancel Import"));
+	current_interthread_info = &import_status;
+
+	import_status.pathname = path;
+	import_status.done = false;
+	import_status.cancel = false;
+	import_status.freeze = false;
+	import_status.done = 0.0;
+	
+	interthread_progress_connection = Glib::signal_timeout().connect 
+		(bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
+	
+	track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
+	ARDOUR_UI::instance()->flush_pending ();
+
+	/* start import thread for this path. this will ultimately call Session::import_audiofile()
+	   and if successful will add the file as a region to the session region list.
+	*/
+	
+	pthread_create_and_store ("import", &import_status.thread, 0, _import_thread, this);
+	pthread_detach (import_status.thread);
+	
+	while (!(import_status.done || import_status.cancel)) {
+		gtk_main_iteration ();
+	}
+	
+	import_status.done = true;
+	interthread_progress_connection.disconnect ();
+	
+	/* import thread finished - see if we should build a new track */
+	
+	if (!import_status.new_regions.empty()) {
+		AudioRegion& region (*import_status.new_regions.front());
+		finish_bringing_in_audio (region, region.n_channels(), region.n_channels(), track, pos, mode);
+	}
+
+	track_canvas.get_window()->set_cursor (*current_canvas_cursor);
+}
+
+void
+Editor::embed_sndfile (Glib::ustring path, bool split, bool multiple_files, bool& check_sample_rate, ImportMode mode, 
+		       AudioTrack* track, jack_nframes_t& pos, bool prompt)
+{
+	ExternalSource *source = 0; /* keep g++ quiet */
+	AudioRegion::SourceList sources;
+	string idspec;
+	string linked_path;
+	SoundFileInfo finfo;
+	string region_name;
+
+	track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
+	ARDOUR_UI::instance()->flush_pending ();
+
+	/* lets see if we can link it into the session */
+	
+	linked_path = session->sound_dir();
+	linked_path += PBD::basename (path);
+
+	if (link (path.c_str(), linked_path.c_str()) == 0) {
+
+		/* there are many reasons why link(2) might have failed.
+		   but if it succeeds, we now have a link in the
+		   session sound dir that will protect against
+		   unlinking of the original path. nice.
+		*/
+
+		path = linked_path;
+	}
+
+	/* note that we temporarily truncated _id at the colon */
+
+	string error_msg;
+
+	if (!ExternalSource::get_soundfile_info (path, finfo, error_msg)) {
+		error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), selection, error_msg ) << endmsg;
+		return;
+	}
+	
+	if (check_sample_rate) {
+		switch (reject_because_rate_differs (path, finfo, "Embed", multiple_files)) {
+		case 0:
+			break;
+		case 1:
+			return;
+		case -1:
+			check_sample_rate = false;
+			break;
+			
+		case -2:
+		default:
+			return;
+		}
+	}
+
+	track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
+	ARDOUR_UI::instance()->flush_pending ();
+
+	/* make the proper number of channels in the region */
+
+	for (int n = 0; n < finfo.channels; ++n)
+	{
+		idspec = path;
+		idspec += string_compose(":%1", n);
+		
+		try {
+			source = ExternalSource::create (idspec.c_str());
+			sources.push_back(source);
+		} 
+
+		catch (failed_constructor& err) {
+			error << string_compose(_("could not open %1"), path) << endmsg;
+			goto out;
+		}
+
+		ARDOUR_UI::instance()->flush_pending ();
+	}
+
+	if (sources.empty()) {
+		goto out;
+	}
+
+	region_name = PBD::basename_nosuffix (path);
+	region_name += "-0";
+	
+	AudioRegion* region = new AudioRegion (sources, 0, sources[0]->length(), region_name, 0,
+					       Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External));
+	
+	uint32_t input_chan = finfo.channels;
+	uint32_t output_chan;
+
+	if (session->get_output_auto_connect() & Session::AutoConnectMaster) {
+		output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
+	} else {
+		output_chan = input_chan;
+	}
+	
+	finish_bringing_in_audio (*region, input_chan, output_chan, track, pos, mode);
+
+  out:
+	track_canvas.get_window()->set_cursor (*current_canvas_cursor);
+}
+
+int
+Editor::finish_bringing_in_audio (AudioRegion& region, uint32_t in_chans, uint32_t out_chans, AudioTrack* track, jack_nframes_t& pos, ImportMode mode)
+{
+	switch (mode) {
+	case ImportAsRegion:
+		/* relax, its been done */
+		break;
+		
+	case ImportToTrack:
+		if (track) {
+			Playlist* playlist  = track->disk_stream().playlist();
+			
+			AudioRegion* copy = new AudioRegion (region);
+			begin_reversible_command (_("insert sndfile"));
+			session->add_undo (playlist->get_memento());
+			playlist->add_region (*copy, pos);
+			session->add_redo_no_execute (playlist->get_memento());
+			commit_reversible_command ();
+
+			pos += region.length();
+		}
+		break;
+		
+	case ImportAsTrack:
+		AudioTrack* at = session->new_audio_track (in_chans, out_chans);
+		AudioRegion* copy = new AudioRegion (region);
+		at->disk_stream().playlist()->add_region (*copy, pos);
+		break;
+	}
+
+	return 0;
+}
+
+int
+Editor::reject_because_rate_differs (Glib::ustring path, SoundFileInfo& finfo, const string & action, bool multiple_pending)
+{
+	if (!session) {
+		return 1;
+	}
+
+	if (finfo.samplerate != (int) session->frame_rate()) {
+		vector<string> choices;
+
+		choices.push_back (string_compose (_("%1 it anyway"), action));
+
+		if (multiple_pending) {
+			/* XXX assumptions about sentence structure
+			   here for translators. Sorry.
+			*/
+			choices.push_back (string_compose (_("Don't %1 it"), action));
+			choices.push_back (string_compose (_("%1 all without questions"), action));
+			choices.push_back (_("Cancel entire import"));
+		} else {
+			choices.push_back (_("Cancel"));
+		}
+
+		Gtkmm2ext::Choice rate_choice (
+			string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
+			choices, false);
+
+		switch (rate_choice.run()) {
+		case 0: /* do it anyway */
+			return 0;
+		case 1: /* don't import this one */
+			return 1;
+		case 2: /* do the rest without asking */
+			return -1;
+		case 3: /* stop a multi-file import */
+		default:
+			return -2;
+		}
+	}
+
+	return 0;
+}
+
+void *
+Editor::_import_thread (void *arg)
+{
+	PBD::ThreadCreated (pthread_self(), X_("Import"));
+
+	Editor *ed = (Editor *) arg;
+	return ed->import_thread ();
+}
+
+void *
+Editor::import_thread ()
+{
+	session->import_audiofile (import_status);
+	pthread_exit_pbd (0);
+	/*NOTREACHED*/
+	return 0;
+}
+
+gint
+Editor::import_progress_timeout (void *arg)
+{
+	interthread_progress_label.set_text (import_status.doing_what);
+
+	if (import_status.freeze) {
+		interthread_cancel_button.set_sensitive(false);
+	} else {
+		interthread_cancel_button.set_sensitive(true);
+	}
+
+	if (import_status.doing_what == "building peak files") {
+		interthread_progress_bar.pulse ();
+		return FALSE;
+	} else {
+		interthread_progress_bar.set_fraction (import_status.progress);
+	}
+
+	return !(import_status.done || import_status.cancel);
+}
+