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livetrax/gtk2_ardour/editor_sources.cc

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/*
* Copyright (C) 2018-2019 Ben Loftis <ben@harrisonconsoles.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <cstdlib>
#include <cmath>
#include <algorithm>
#include <string>
#include <sstream>
#include "pbd/basename.h"
#include "pbd/enumwriter.h"
#include "pbd/file_utils.h"
#include "ardour/audioregion.h"
#include "ardour/source.h"
#include "ardour/audiofilesource.h"
#include "ardour/silentfilesource.h"
#include "ardour/smf_source.h"
#include "ardour/region_factory.h"
#include "ardour/session.h"
#include "ardour/session_directory.h"
#include "ardour/profile.h"
#include "gtkmm2ext/treeutils.h"
#include "gtkmm2ext/utils.h"
#include "widgets/choice.h"
#include "widgets/tooltips.h"
#include "audio_clock.h"
#include "context_menu_helper.h"
#include "editor.h"
#include "editing.h"
#include "editing_convert.h"
#include "keyboard.h"
#include "ardour_ui.h"
#include "gui_thread.h"
#include "actions.h"
#include "region_view.h"
#include "utils.h"
#include "editor_drag.h"
#include "main_clock.h"
#include "ui_config.h"
#include "pbd/i18n.h"
#include "editor_sources.h"
using namespace std;
using namespace ARDOUR;
using namespace ArdourWidgets;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Gtk;
using namespace Glib;
using namespace Editing;
using Gtkmm2ext::Keyboard;
struct ColumnInfo {
int index;
const char* label;
const char* tooltip;
};
EditorSources::EditorSources (Editor* e)
: EditorComponent (e)
, old_focus (0)
, tags_editable (0)
, _menu (0)
, _selection (0)
, _no_redisplay (false)
{
_display.set_size_request (100, -1);
_display.set_rules_hint (true);
_display.set_name ("SourcesList");
_display.set_fixed_height_mode (true);
/* Try to prevent single mouse presses from initiating edits.
This relies on a hack in gtktreeview.c:gtk_treeview_button_press()
*/
_display.set_data ("mouse-edits-require-mod1", (gpointer) 0x1);
_model = TreeStore::create (_columns);
_model->set_sort_column (0, SORT_ASCENDING);
/* column widths */
int bbt_width, date_width, height;
Glib::RefPtr<Pango::Layout> layout = _display.create_pango_layout (X_("000|000|000"));
Gtkmm2ext::get_pixel_size (layout, bbt_width, height);
Glib::RefPtr<Pango::Layout> layout2 = _display.create_pango_layout (X_("2018-10-14 12:12:30"));
Gtkmm2ext::get_pixel_size (layout2, date_width, height);
TreeViewColumn* col_name = manage (new TreeViewColumn ("", _columns.name));
col_name->set_fixed_width (bbt_width*2);
col_name->set_sizing (TREE_VIEW_COLUMN_FIXED);
col_name->set_sort_column(0);
TreeViewColumn* col_tags = manage (new TreeViewColumn ("", _columns.tags));
col_tags->set_fixed_width (bbt_width*2);
col_tags->set_sizing (TREE_VIEW_COLUMN_FIXED);
TreeViewColumn* col_take_id = manage (new TreeViewColumn ("", _columns.take_id));
col_take_id->set_fixed_width (date_width);
col_take_id->set_sizing (TREE_VIEW_COLUMN_FIXED);
col_take_id->set_sort_column(1);
TreeViewColumn* col_nat_pos = manage (new TreeViewColumn ("", _columns.natural_pos));
col_nat_pos->set_fixed_width (bbt_width);
col_nat_pos->set_sizing (TREE_VIEW_COLUMN_FIXED);
col_nat_pos->set_sort_column(6);
TreeViewColumn* col_path = manage (new TreeViewColumn ("", _columns.path));
col_path->set_fixed_width (bbt_width);
col_path->set_sizing (TREE_VIEW_COLUMN_FIXED);
col_path->set_sort_column(3);
_display.append_column (*col_name);
_display.append_column (*col_tags);
_display.append_column (*col_take_id);
_display.append_column (*col_nat_pos);
_display.append_column (*col_path);
TreeViewColumn* col;
Gtk::Label* l;
ColumnInfo ci[] = {
{ 0, _("Source"), _("Source name, with number of channels in []'s") },
{ 1, _("Tags"), _("Tags") },
{ 2, _("Take ID"), _("Take ID") },
{ 3, _("Orig Pos"), _("Original Position of the file on timeline, when it was recorded") },
{ 4, _("Path"), _("Path (folder) of the file locationlosition of end of region") },
{ -1, 0, 0 }
};
for (int i = 0; ci[i].index >= 0; ++i) {
col = _display.get_column (ci[i].index);
l = manage (new Label (ci[i].label));
set_tooltip (*l, ci[i].tooltip);
col->set_widget (*l);
l->show ();
}
_display.set_model (_model);
_display.set_headers_visible (true);
_display.set_rules_hint ();
//set the color of the name field
TreeViewColumn* tv_col = _display.get_column(0);
CellRendererText* renderer = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (0));
tv_col->add_attribute(renderer->property_text(), _columns.name);
tv_col->add_attribute(renderer->property_foreground_gdk(), _columns.color_);
//Tags cell: make editable
CellRendererText* region_tags_cell = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (1));
region_tags_cell->property_editable() = true;
region_tags_cell->signal_edited().connect (sigc::mem_fun (*this, &EditorSources::tag_edit));
region_tags_cell->signal_editing_started().connect (sigc::mem_fun (*this, &EditorSources::tag_editing_started));
//right-align the Natural Pos column
TreeViewColumn* nat_col = _display.get_column(3);
nat_col->set_alignment (ALIGN_RIGHT);
renderer = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (3));
if (renderer) {
renderer->property_xalign() = ( 1.0 );
}
//the PATH field should expand when the pane is opened wider
tv_col = _display.get_column(4);
renderer = dynamic_cast<CellRendererText*>(_display.get_column_cell_renderer (4));
tv_col->add_attribute(renderer->property_text(), _columns.path);
tv_col->set_expand (true);
_display.get_selection()->set_mode (SELECTION_MULTIPLE);
_display.add_object_drag (_columns.region.index(), "regions");
_display.set_drag_column (_columns.name.index());
/* setup DnD handling */
2018-11-15 10:30:22 -05:00
list<TargetEntry> source_list_target_table;
2018-11-15 10:30:22 -05:00
source_list_target_table.push_back (TargetEntry ("text/plain"));
source_list_target_table.push_back (TargetEntry ("text/uri-list"));
source_list_target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
2018-11-15 10:30:22 -05:00
_display.add_drop_targets (source_list_target_table);
_display.signal_drag_data_received().connect (sigc::mem_fun(*this, &EditorSources::drag_data_received));
_scroller.add (_display);
_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
_display.signal_button_press_event().connect (sigc::mem_fun(*this, &EditorSources::button_press), false);
_change_connection = _display.get_selection()->signal_changed().connect (sigc::mem_fun(*this, &EditorSources::selection_changed));
_scroller.signal_key_press_event().connect (sigc::mem_fun(*this, &EditorSources::key_press), false);
_scroller.signal_focus_in_event().connect (sigc::mem_fun (*this, &EditorSources::focus_in), false);
_scroller.signal_focus_out_event().connect (sigc::mem_fun (*this, &EditorSources::focus_out));
_display.signal_enter_notify_event().connect (sigc::mem_fun (*this, &EditorSources::enter_notify), false);
_display.signal_leave_notify_event().connect (sigc::mem_fun (*this, &EditorSources::leave_notify), false);
ARDOUR_UI::instance()->primary_clock->mode_changed.connect (sigc::mem_fun(*this, &EditorSources::clock_format_changed));
e->EditorFreeze.connect (editor_freeze_connection, MISSING_INVALIDATOR, boost::bind (&EditorSources::freeze_tree_model, this), gui_context());
e->EditorThaw.connect (editor_thaw_connection, MISSING_INVALIDATOR, boost::bind (&EditorSources::thaw_tree_model, this), gui_context());
}
bool
EditorSources::focus_in (GdkEventFocus*)
{
Window* win = dynamic_cast<Window*> (_scroller.get_toplevel ());
if (win) {
old_focus = win->get_focus ();
} else {
old_focus = 0;
}
tags_editable = 0;
/* try to do nothing on focus in (doesn't work, hence selection_count nonsense) */
return true;
}
bool
EditorSources::focus_out (GdkEventFocus*)
{
if (old_focus) {
old_focus->grab_focus ();
old_focus = 0;
}
tags_editable = 0;
return false;
}
bool
EditorSources::enter_notify (GdkEventCrossing*)
{
if (tags_editable) {
return true;
}
Keyboard::magic_widget_grab_focus ();
return false;
}
bool
EditorSources::leave_notify (GdkEventCrossing*)
{
if (old_focus) {
old_focus->grab_focus ();
old_focus = 0;
}
Keyboard::magic_widget_drop_focus ();
return false;
}
void
EditorSources::set_session (ARDOUR::Session* s)
{
SessionHandlePtr::set_session (s);
if (s) {
/* Currently, none of the displayed properties are mutable, so there is no reason to register for changes
* ARDOUR::Region::RegionPropertyChanged.connect (source_property_connection, MISSING_INVALIDATOR, boost::bind (&EditorSources::source_changed, this, _1, _2), gui_context());
*/
ARDOUR::RegionFactory::CheckNewRegion.connect (add_source_connection, MISSING_INVALIDATOR, boost::bind (&EditorSources::add_source, this, _1), gui_context());
s->SourceRemoved.connect (remove_source_connection, MISSING_INVALIDATOR, boost::bind (&EditorSources::remove_source, this, _1), gui_context());
redisplay();
} else {
clear();
}
}
void
EditorSources::remove_source (boost::shared_ptr<ARDOUR::Source> source)
{
TreeModel::iterator i;
TreeModel::Children rows = _model->children();
for (i = rows.begin(); i != rows.end(); ++i) {
boost::shared_ptr<ARDOUR::Region> rr = (*i)[_columns.region];
if (rr->source() == source) {
_model->erase(i);
break;
}
}
}
void
EditorSources::populate_row (TreeModel::Row row, boost::shared_ptr<ARDOUR::Region> region)
{
ENSURE_GUI_THREAD (*this, &ARDOUR_UI::record_state_changed, row, region);
if (!region) {
return;
}
boost::shared_ptr<ARDOUR::Source> source = region->source(); //ToDo: is it OK to use only the first source?
//COLOR (for missing files)
Gdk::Color c;
bool missing_source = boost::dynamic_pointer_cast<SilentFileSource>(source) != NULL;
if (missing_source) {
set_color_from_rgba (c, UIConfiguration::instance().color ("region list missing source"));
} else {
set_color_from_rgba (c, UIConfiguration::instance().color ("region list whole file"));
}
row[_columns.color_] = c;
//NAME
std::string str = region->name();
//if a multichannel region, show the number of channels ToDo: make a sortable column for this?
if ( region->n_channels() > 1 ) {
str += string_compose("[%1]", region->n_channels());
}
row[_columns.name] = str;
//TAGS
row[_columns.tags] = region->tags();
row[_columns.region] = region;
row[_columns.take_id] = source->take_id();
//PATH
string pathstr = source->name();
if (missing_source) {
pathstr = _("(MISSING) ") + Gtkmm2ext::markup_escape_text (source->name());
} else {
//is it a file?
boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource>(source);
if (!fs) {
pathstr = Gtkmm2ext::markup_escape_text (source->name()); //someday: sequence region(?)
} else {
//audio file?
boost::shared_ptr<AudioFileSource> afs = boost::dynamic_pointer_cast<AudioFileSource>(source);
if (afs) {
const string audio_directory = _session->session_directory().sound_path();
if ( !PBD::path_is_within(audio_directory, fs->path())) {
pathstr = Gtkmm2ext::markup_escape_text (fs->path());
}
}
//midi file?
boost::shared_ptr<SMFSource> mfs = boost::dynamic_pointer_cast<SMFSource>(source);
if (mfs) {
const string midi_directory = _session->session_directory().midi_path();
if ( !PBD::path_is_within(midi_directory, fs->path())) {
pathstr = Gtkmm2ext::markup_escape_text (fs->path());
}
}
}
}
row[_columns.path] = pathstr;
//Natural Position (samples, an invisible column for sorting)
row[_columns.natural_s] = source->natural_position();
//Natural Position (text representation)
if (source->have_natural_position()) {
char buf[64];
format_position (source->natural_position(), buf, sizeof (buf));
row[_columns.natural_pos] = buf;
} else {
row[_columns.natural_pos] = X_("--");
}
}
void
EditorSources::redisplay ()
{
if (_no_redisplay || !_session) {
return;
}
_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
_model->clear ();
_model->set_sort_column (-2, SORT_ASCENDING); //Disable sorting to gain performance
//Ask the region factory to fill our list of whole-file regions
RegionFactory::foreach_region (sigc::mem_fun (*this, &EditorSources::add_source));
_model->set_sort_column (0, SORT_ASCENDING); // re-enable sorting
_display.set_model (_model);
}
void
EditorSources::add_source (boost::shared_ptr<ARDOUR::Region> region)
{
if (!region || !_session ) {
return;
}
//by definition, the Source List only shows whole-file regions
//this roughly equates to Source objects, but preserves the stereo-ness (or multichannel-ness) of a stereo source file.
if ( !region->whole_file() ) {
return;
}
//we only show files-on-disk. if there's some other kind of source, we ignore it (for now)
boost::shared_ptr<FileSource> fs = boost::dynamic_pointer_cast<FileSource> (region->source());
if (!fs || fs->empty()) {
return;
}
TreeModel::Row row = *(_model->append());
populate_row (row, region);
}
void
EditorSources::source_changed (boost::shared_ptr<ARDOUR::Region> region)
{
/* Currently never reached .. we have no mutable properties shown in the list*/
TreeModel::iterator i;
TreeModel::Children rows = _model->children();
for (i = rows.begin(); i != rows.end(); ++i) {
boost::shared_ptr<ARDOUR::Region> rr = (*i)[_columns.region];
if (region == rr) {
populate_row(*i, region);
break;
}
}
}
void
EditorSources::selection_changed ()
{
if (_display.get_selection()->count_selected_rows() > 0) {
TreeIter iter;
TreeView::Selection::ListHandle_Path rows = _display.get_selection()->get_selected_rows ();
_editor->get_selection().clear_regions ();
for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {
if ((iter = _model->get_iter (*i))) {
//highlight any regions in the editor that use this region's source
boost::shared_ptr<ARDOUR::Region> region = (*iter)[_columns.region];
if (!region) continue;
boost::shared_ptr<ARDOUR::Source> source = region->source();
if (source) {
set<boost::shared_ptr<Region> > regions;
RegionFactory::get_regions_using_source ( source, regions );
for (set<boost::shared_ptr<Region> >::iterator region = regions.begin(); region != regions.end(); region++ ) {
_change_connection.block (true);
_editor->set_selected_regionview_from_region_list (*region, Selection::Add);
_change_connection.block (false);
}
}
}
}
} else {
_editor->get_selection().clear_regions ();
}
}
void
EditorSources::clock_format_changed ()
{
TreeModel::iterator i;
TreeModel::Children rows = _model->children();
for (i = rows.begin(); i != rows.end(); ++i) {
boost::shared_ptr<ARDOUR::Region> rr = (*i)[_columns.region];
populate_row(*i, rr);
}
}
void
EditorSources::format_position (samplepos_t pos, char* buf, size_t bufsize, bool onoff)
{
Timecode::BBT_Time bbt;
Timecode::Time timecode;
if (pos < 0) {
error << string_compose (_("EditorSources::format_position: negative timecode position: %1"), pos) << endmsg;
snprintf (buf, bufsize, "invalid");
return;
}
switch (ARDOUR_UI::instance()->primary_clock->mode ()) {
case AudioClock::BBT:
bbt = _session->tempo_map().bbt_at_sample (pos);
if (onoff) {
snprintf (buf, bufsize, "%03d|%02d|%04d" , bbt.bars, bbt.beats, bbt.ticks);
} else {
snprintf (buf, bufsize, "(%03d|%02d|%04d)" , bbt.bars, bbt.beats, bbt.ticks);
}
break;
case AudioClock::MinSec:
samplepos_t left;
int hrs;
int mins;
float secs;
left = pos;
hrs = (int) floor (left / (_session->sample_rate() * 60.0f * 60.0f));
left -= (samplecnt_t) floor (hrs * _session->sample_rate() * 60.0f * 60.0f);
mins = (int) floor (left / (_session->sample_rate() * 60.0f));
left -= (samplecnt_t) floor (mins * _session->sample_rate() * 60.0f);
secs = left / (float) _session->sample_rate();
if (onoff) {
snprintf (buf, bufsize, "%02d:%02d:%06.3f", hrs, mins, secs);
} else {
snprintf (buf, bufsize, "(%02d:%02d:%06.3f)", hrs, mins, secs);
}
break;
case AudioClock::Seconds:
if (onoff) {
snprintf (buf, bufsize, "%.1f", pos / (float)_session->sample_rate());
} else {
snprintf (buf, bufsize, "(%.1f)", pos / (float)_session->sample_rate());
}
break;
case AudioClock::Samples:
if (onoff) {
snprintf (buf, bufsize, "%" PRId64, pos);
} else {
snprintf (buf, bufsize, "(%" PRId64 ")", pos);
}
break;
case AudioClock::Timecode:
default:
_session->timecode_time (pos, timecode);
if (onoff) {
snprintf (buf, bufsize, "%02d:%02d:%02d:%02d", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
} else {
snprintf (buf, bufsize, "(%02d:%02d:%02d:%02d)", timecode.hours, timecode.minutes, timecode.seconds, timecode.frames);
}
break;
}
}
void
EditorSources::show_context_menu (int button, int time)
{
using namespace Gtk::Menu_Helpers;
Gtk::Menu* menu = ARDOUR_UI_UTILS::shared_popup_menu ();
MenuList& items = menu->items();
#ifdef RECOVER_REGIONS_IS_WORKING
items.push_back(MenuElem(_("Recover the selected Sources to their original Track & Position"),
sigc::mem_fun(*this, &EditorSources::recover_selected_sources)));
#endif
items.push_back(MenuElem(_("Remove the selected Sources"),
sigc::mem_fun(*this, &EditorSources::remove_selected_sources)));
menu->popup(1, time);
}
void
EditorSources::recover_selected_sources ()
{
ARDOUR::RegionList to_be_recovered;
if (_display.get_selection()->count_selected_rows() > 0) {
TreeIter iter;
TreeView::Selection::ListHandle_Path rows = _display.get_selection()->get_selected_rows ();
for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {
if ((iter = _model->get_iter (*i))) {
boost::shared_ptr<ARDOUR::Region> region = (*iter)[_columns.region];
if (region) {
to_be_recovered.push_back(region);
}
}
}
}
/* ToDo */
_editor->recover_regions(to_be_recovered); //this operation should be undo-able
}
void
EditorSources::remove_selected_sources ()
{
vector<string> choices;
string prompt;
prompt = _("Do you want to remove the selected Sources?"
"\nThis operation cannot be undone."
"\nThe source files will not actually be deleted until you execute Session->Cleanup.");
choices.push_back (_("No, do nothing."));
choices.push_back (_("Only remove the Regions that use these Sources."));
choices.push_back (_("Yes, remove the Regions and Sources (cannot be undone!"));
Choice prompter (_("Remove selected Sources"), prompt, choices);
int opt = prompter.run ();
if ( opt >= 1) {
std::list<boost::weak_ptr<ARDOUR::Source> > to_be_removed;
if (_display.get_selection()->count_selected_rows() > 0) {
TreeIter iter;
TreeView::Selection::ListHandle_Path rows = _display.get_selection()->get_selected_rows ();
_editor->get_selection().clear_regions ();
for (TreeView::Selection::ListHandle_Path::iterator i = rows.begin(); i != rows.end(); ++i) {
if ((iter = _model->get_iter (*i))) {
boost::shared_ptr<ARDOUR::Region> region = (*iter)[_columns.region];
if (!region) continue;
boost::shared_ptr<ARDOUR::Source> source = region->source();
if (source) {
set<boost::shared_ptr<Region> > regions;
RegionFactory::get_regions_using_source ( source, regions );
for (set<boost::shared_ptr<Region> >::iterator region = regions.begin(); region != regions.end(); region++ ) {
_change_connection.block (true);
_editor->set_selected_regionview_from_region_list (*region, Selection::Add);
_change_connection.block (false);
}
to_be_removed.push_back(source);
}
}
}
_editor->remove_selected_regions(); //this operation is undo-able
if (opt==2) {
for (std::list<boost::weak_ptr<ARDOUR::Source> >::iterator i = to_be_removed.begin(); i != to_be_removed.end(); ++i) {
_session->remove_source(*i); //this operation is (currently) not undo-able
}
}
}
}
}
bool
EditorSources::key_press (GdkEventKey* ev)
{
TreeViewColumn *col;
switch (ev->keyval) {
case GDK_Tab:
case GDK_ISO_Left_Tab:
if (tags_editable) {
tags_editable->editing_done ();
tags_editable = 0;
}
col = _display.get_column (1); // select&focus on tags column
if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
treeview_select_previous (_display, _model, col);
} else {
treeview_select_next (_display, _model, col);
}
return true;
break;
case GDK_BackSpace:
remove_selected_sources();
return true;
default:
break;
}
return false;
}
bool
EditorSources::button_press (GdkEventButton *ev)
{
boost::shared_ptr<ARDOUR::Region> region;
TreeIter iter;
TreeModel::Path path;
TreeViewColumn* column;
int cellx;
int celly;
if (_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
if ((iter = _model->get_iter (path))) {
region = (*iter)[_columns.region];
}
}
if (Keyboard::is_context_menu_event (ev)) {
show_context_menu (ev->button, ev->time);
return false;
}
return false;
}
void
EditorSources::tag_editing_started (CellEditable* ce, const Glib::ustring& path)
{
tags_editable = ce;
/* give it a special name */
Gtk::Entry *e = dynamic_cast<Gtk::Entry*> (ce);
if (e) {
e->set_name (X_("SourceTagEditorEntry"));
TreeIter iter;
if ((iter = _model->get_iter (path))) {
boost::shared_ptr<Region> region = (*iter)[_columns.region];
if(region) {
e->set_text(region->tags());
}
}
}
}
void
EditorSources::tag_edit (const std::string& path, const std::string& new_text)
{
tags_editable = 0;
boost::shared_ptr<Region> region;
TreeIter row_iter;
if ((row_iter = _model->get_iter (path))) {
region = (*row_iter)[_columns.region];
(*row_iter)[_columns.tags] = new_text;
}
if (region) {
region->set_tags (new_text);
_session->set_dirty(); //whole-file regions aren't in a playlist to catch property changes, so we need to explicitly set the session dirty
populate_row ((*row_iter), region);
}
}
void
EditorSources::selection_mapover (sigc::slot<void,boost::shared_ptr<Region> > sl)
{
}
void
EditorSources::drag_data_received (const RefPtr<Gdk::DragContext>& context,
int x, int y,
const SelectionData& data,
guint info, guint time)
{
/* ToDo: allow dropping files/loops into the source list? */
}
/** @return Region that has been dragged out of the list, or 0 */
boost::shared_ptr<ARDOUR::Region>
EditorSources::get_dragged_region ()
{
list<boost::shared_ptr<ARDOUR::Region> > regions;
TreeView* region;
_display.get_object_drag_data (regions, &region);
if (regions.empty()) {
return boost::shared_ptr<ARDOUR::Region> ();
}
assert (regions.size() == 1);
return regions.front ();
}
void
EditorSources::clear ()
{
_display.set_model (Glib::RefPtr<Gtk::TreeStore> (0));
_model->clear ();
_display.set_model (_model);
}
boost::shared_ptr<ARDOUR::Region>
EditorSources::get_single_selection ()
{
Glib::RefPtr<TreeSelection> selected = _display.get_selection();
if (selected->count_selected_rows() != 1) {
return boost::shared_ptr<ARDOUR::Region> ();
}
TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
/* only one row selected, so rows.begin() is it */
TreeIter iter = _model->get_iter (*rows.begin());
if (!iter) {
return boost::shared_ptr<ARDOUR::Region> ();
}
return (*iter)[_columns.region];
}
void
EditorSources::freeze_tree_model ()
{
_display.set_model (Glib::RefPtr<Gtk::TreeStore>(0));
_model->set_sort_column (-2, SORT_ASCENDING); //Disable sorting to gain performance
}
void
EditorSources::thaw_tree_model (){
_model->set_sort_column (0, SORT_ASCENDING); // renabale sorting
_display.set_model (_model);
}
XMLNode &
EditorSources::get_state () const
{
XMLNode* node = new XMLNode (X_("SourcesList"));
//TODO: save sort state?
return *node;
}
void
EditorSources::set_state (const XMLNode & node)
{
}