13
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livetrax/gtk2_ardour/editor_sections.cc
2023-09-05 23:08:30 +02:00

511 lines
15 KiB
C++

/*
* Copyright (C) 2023 Robin Gareus <robin@gareus.org>
*
* 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 <glibmm.h>
#include "ardour/session.h"
#include "pbd/unwind.h"
#include "gtkmm2ext/keyboard.h"
#include "ardour_ui.h"
#include "context_menu_helper.h"
#include "editor_sections.h"
#include "gui_thread.h"
#include "keyboard.h"
#include "main_clock.h"
#include "public_editor.h"
#include "utils.h"
#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
using namespace Gtk;
using namespace ARDOUR;
EditorSections::EditorSections ()
: _no_redisplay (false)
{
_model = ListStore::create (_columns);
_view.set_model (_model);
Gtk::TreeViewColumn* c = manage (new Gtk::TreeViewColumn (_("Name"), _columns.name));
_view.append_column (*c);
c->set_resizable (true);
c->set_data ("mouse-edits-require-mod1", (gpointer)0x1);
CellRendererText* section_name_cell = dynamic_cast<CellRendererText*> (c->get_first_cell ());
section_name_cell->property_editable () = true;
section_name_cell->signal_edited ().connect (sigc::mem_fun (*this, &EditorSections::name_edited));
_view.append_column (_("Start"), _columns.s_start);
_view.append_column (_("End"), _columns.s_end);
_view.set_enable_search (false);
_view.set_headers_visible (true);
_view.get_selection ()->set_mode (Gtk::SELECTION_SINGLE);
_scroller.add (_view);
_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
_view.signal_key_press_event ().connect (sigc::mem_fun (*this, &EditorSections::key_press), false);
_view.signal_button_press_event ().connect (sigc::mem_fun (*this, &EditorSections::button_press), false);
_view.get_selection ()->signal_changed ().connect (sigc::mem_fun (*this, &EditorSections::selection_changed));
/* DnD source */
std::vector<TargetEntry> dnd;
dnd.push_back (TargetEntry ("x-ardour/section", Gtk::TARGET_SAME_APP));
_view.drag_source_set (dnd, Gdk::MODIFIER_MASK, Gdk::ACTION_COPY | Gdk::ACTION_MOVE);
_view.signal_drag_data_get ().connect (sigc::mem_fun (*this, &EditorSections::drag_data_get));
/* DnD target */
_view.drag_dest_set (dnd, DEST_DEFAULT_ALL, Gdk::ACTION_COPY | Gdk::ACTION_MOVE);
_view.signal_drag_begin ().connect (sigc::mem_fun (*this, &EditorSections::drag_begin));
_view.signal_drag_motion ().connect (sigc::mem_fun (*this, &EditorSections::drag_motion));
_view.signal_drag_leave ().connect (sigc::mem_fun (*this, &EditorSections::drag_leave));
_view.signal_drag_data_received ().connect (sigc::mem_fun (*this, &EditorSections::drag_data_received));
/* Allow to scroll using key up/down */
_view.signal_enter_notify_event ().connect (sigc::mem_fun (*this, &EditorSections::enter_notify), false);
_view.signal_leave_notify_event ().connect (sigc::mem_fun (*this, &EditorSections::leave_notify), false);
ARDOUR_UI::instance ()->primary_clock->mode_changed.connect (sigc::mem_fun (*this, &EditorSections::clock_format_changed));
_selection_change = PublicEditor::instance ().get_selection ().TimeChanged.connect (sigc::mem_fun (*this, &EditorSections::update_time_selection));
}
void
EditorSections::set_session (Session* s)
{
SessionHandlePtr::set_session (s);
if (_session) {
_session->locations ()->added.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
_session->locations ()->removed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
_session->locations ()->changed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
Location::start_changed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
Location::end_changed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
Location::flags_changed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
Location::name_changed.connect (_session_connections, invalidator (*this), boost::bind (&EditorSections::redisplay, this), gui_context ());
}
redisplay ();
}
void
EditorSections::redisplay ()
{
if (_no_redisplay) {
return;
}
_view.set_model (Glib::RefPtr<ListStore> ());
_model->clear ();
_location_row_map.clear ();
if (_session == 0) {
return;
}
timepos_t start;
timepos_t end;
Locations* loc = _session->locations ();
Location* l = NULL;
do {
l = loc->next_section (l, start, end);
if (l) {
TreeModel::Row newrow = *(_model->append ());
newrow[_columns.name] = l->name ();
newrow[_columns.location] = l;
newrow[_columns.start] = start;
newrow[_columns.end] = end;
_location_row_map.insert (pair<ARDOUR::Location*, Gtk::TreeModel::iterator> (l, newrow));
}
} while (l);
clock_format_changed ();
_view.set_model (_model);
}
void
EditorSections::clock_format_changed ()
{
if (!_session) {
return;
}
TreeModel::Children rows = _model->children ();
for (auto const& r : rows) {
char buf[16];
ARDOUR_UI_UTILS::format_position (_session, r[_columns.start], buf, sizeof (buf));
r[_columns.s_start] = buf;
ARDOUR_UI_UTILS::format_position (_session, r[_columns.end], buf, sizeof (buf));
r[_columns.s_end] = buf;
}
}
bool
EditorSections::scroll_row_timeout ()
{
int y;
Gdk::Rectangle visible_rect;
Gtk::Adjustment* adj = _scroller.get_vadjustment ();
gdk_window_get_pointer (_view.get_window ()->gobj (), NULL, &y, NULL);
_view.get_visible_rect (visible_rect);
y += adj->get_value ();
int offset = y - (visible_rect.get_y () + 30);
if (offset > 0) {
offset = y - (visible_rect.get_y () + visible_rect.get_height () - 30);
if (offset < 0) {
return true;
}
}
float value = adj->get_value () + offset;
value = std::max<float> (0, value);
value = std::min<float> (value, adj->get_upper () - adj->get_page_size ());
adj->set_value (value);
return true;
}
void
EditorSections::update_time_selection ()
{
_view.get_selection ()->unselect_all ();
Selection& selection (PublicEditor::instance ().get_selection ());
if (selection.time.empty ()) {
return;
}
Locations* loc = _session->locations ();
Location* l = NULL;
do {
timepos_t start, end;
l = loc->next_section (l, start, end);
if (l) {
if (start == selection.time.start_time () && end == selection.time.end_time ()) {
LocationRowMap::iterator map_it = _location_row_map.find (l);
TreeModel::iterator j = map_it->second;
_view.get_selection ()->select (*j);
}
}
} while (l);
}
void
EditorSections::selection_changed ()
{
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
if (rows.empty ()) {
return;
}
Gtk::TreeModel::Row row = *_model->get_iter (*rows.begin ());
timepos_t start = row[_columns.start];
timepos_t end = row[_columns.end];
_selection_change.block ();
Selection& s (PublicEditor::instance ().get_selection ());
s.clear ();
s.set (start, end);
_selection_change.unblock ();
}
void
EditorSections::drag_begin (Glib::RefPtr<Gdk::DragContext> const& context)
{
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
if (!rows.empty ()) {
Glib::RefPtr<Gdk::Pixmap> pix = _view.create_row_drag_icon (*rows.begin ());
int w, h;
pix->get_size (w, h);
context->set_icon (pix->get_colormap (), pix, Glib::RefPtr<Gdk::Bitmap> (), 4, h / 2);
}
}
void
EditorSections::drag_data_get (Glib::RefPtr<Gdk::DragContext> const&, Gtk::SelectionData& data, guint, guint)
{
if (data.get_target () != "x-ardour/section") {
return;
}
data.set (data.get_target (), 8, NULL, 0);
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
for (auto const& r : rows) {
TreeIter i;
if ((i = _model->get_iter (r))) {
Section s ((*i)[_columns.location], (*i)[_columns.start], (*i)[_columns.end]);
data.set (data.get_target (), sizeof (Section), (guchar const*)&s, sizeof (Section));
break;
}
}
}
bool
EditorSections::drag_motion (Glib::RefPtr<Gdk::DragContext> const& context, int x, int y, guint time)
{
std::string const& target = _view.drag_dest_find_target (context, _view.drag_dest_get_target_list ());
if (target != "x-ardour/section") {
context->drag_status (Gdk::DragAction (0), time);
return false;
}
int unused, header_height;
_view.convert_bin_window_to_widget_coords (0, 0, unused, header_height);
if (y < header_height) {
context->drag_status (Gdk::DragAction (0), time);
return false;
}
TreeModel::Path path;
TreeViewDropPosition pos;
if (!_view.get_dest_row_at_pos (x, y, path, pos)) {
assert (_model->children ().size () > 0);
pos = Gtk::TREE_VIEW_DROP_AFTER;
path = TreeModel::Path ();
path.push_back (_model->children ().size () - 1);
}
context->drag_status (context->get_suggested_action (), time);
_view.set_drag_dest_row (path, pos);
_view.drag_highlight ();
if (!_scroll_timeout.connected ()) {
_scroll_timeout = Glib::signal_timeout ().connect (sigc::mem_fun (*this, &EditorSections::scroll_row_timeout), 150);
}
return true;
}
void
EditorSections::drag_leave (Glib::RefPtr<Gdk::DragContext> const&, guint)
{
_view.drag_unhighlight ();
_scroll_timeout.disconnect ();
}
void
EditorSections::drag_data_received (Glib::RefPtr<Gdk::DragContext> const& context, int x, int y, Gtk::SelectionData const& data, guint /*info*/, guint time)
{
if (data.get_target () != "x-ardour/section") {
return;
}
if (data.get_length () != sizeof (Section)) {
return;
}
SectionOperation op = CopyPasteSection;
timepos_t to (0);
if ((context->get_suggested_action () == Gdk::ACTION_MOVE)) {
op = CutPasteSection;
}
TreeModel::Path path;
TreeViewDropPosition pos;
if (!_view.get_dest_row_at_pos (x, y, path, pos)) {
/* paste at end */
TreeModel::Children rows = _model->children ();
assert (!rows.empty ());
Gtk::TreeModel::Row row = *rows.rbegin ();
to = row[_columns.end];
#ifndef NDEBUG
cout << "EditorSections::drag_data_received - paste at end\n";
#endif
} else {
Gtk::TreeModel::iterator i = _model->get_iter (path);
assert (i);
if (pos == Gtk::TREE_VIEW_DROP_AFTER) {
#ifndef NDEBUG
Location* loc = (*i)[_columns.location];
cout << "EditorSections::drag_data_received - paste after '" << loc->name () << "'\n";
#endif
to = (*i)[_columns.end];
} else {
#ifndef NDEBUG
Location* loc = (*i)[_columns.location];
cout << "EditorSections::drag_data_received - paste before '" << loc->name () << "'\n";
#endif
to = (*i)[_columns.start];
}
}
/* Section is POD, memcpy is fine.
* data is free()ed by ~Gtk::SelectionData */
Section s;
memcpy (&s, data.get_data (), sizeof (Section));
if (op == CutPasteSection && to > s.start) {
/* offset/ripple `to` when using CutPasteSection */
to = to.earlier (s.start.distance (s.end));
}
#ifndef NDEBUG
cout << "cut copy '" << s.location->name () << "' " << s.start << " - " << s.end << " to " << to << " op = " << op << "\n";
#endif
{
PBD::Unwinder<bool> uw (_no_redisplay, true);
_session->cut_copy_section (s.start, s.end, to, op);
}
redisplay ();
}
bool
EditorSections::rename_selected_section ()
{
if (_view.get_selection ()->count_selected_rows () != 1) {
return false;
}
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
_view.set_cursor (*rows.begin (), *_view.get_column (0), true);
return true;
}
bool
EditorSections::delete_selected_section ()
{
if (_view.get_selection ()->count_selected_rows () != 1) {
return false;
}
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
Gtk::TreeModel::Row row = *_model->get_iter (*rows.begin ());
timepos_t start = row[_columns.start];
timepos_t end = row[_columns.end];
{
PBD::Unwinder<bool> uw (_no_redisplay, true);
_session->cut_copy_section (start, end, timepos_t (0), DeleteSection);
}
redisplay ();
PublicEditor::instance ().get_selection ().clear ();
return true;
}
bool
EditorSections::key_press (GdkEventKey* ev)
{
switch (ev->keyval) {
case GDK_KP_Delete:
/* fallthrough */
case GDK_Delete:
/* fallthrough */
case GDK_BackSpace:
break;
default:
return false;
}
return delete_selected_section ();
}
void
EditorSections::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 ();
items.push_back (MenuElem (_("Rename the selected Section"), hide_return (sigc::mem_fun (*this, &EditorSections::rename_selected_section))));
items.push_back (SeparatorElem ());
items.push_back (MenuElem (_("Remove the selected Section"), hide_return (sigc::mem_fun (*this, &EditorSections::delete_selected_section))));
menu->popup (button, time);
}
bool
EditorSections::button_press (GdkEventButton* ev)
{
TreeModel::Path path;
TreeViewColumn* column;
int cellx;
int celly;
if (!_view.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
return false;
}
if (ev->type == GDK_2BUTTON_PRESS || ev->type == GDK_3BUTTON_PRESS) {
TreeView::Selection::ListHandle_Path rows = _view.get_selection ()->get_selected_rows ();
assert (!rows.empty ());
Gtk::TreeModel::Row row = *_model->get_iter (*rows.begin ());
if (column == _view.get_column (1)) {
timepos_t start = row[_columns.start];
_session->request_locate (start.samples());
} else if (column == _view.get_column (2)) {
timepos_t end = row[_columns.end];
_session->request_locate (end.samples());
}
return false;
}
if (Gtkmm2ext::Keyboard::is_context_menu_event (ev)) {
show_context_menu (ev->button, ev->time);
/* return false to select item under the mouse */
}
return false;
}
void
EditorSections::name_edited (const std::string& path, const std::string& new_text)
{
TreeIter i;
if ((i = _model->get_iter (path))) {
Location* l = (*i)[_columns.location];
l->set_name (new_text);
}
}
bool
EditorSections::enter_notify (GdkEventCrossing*)
{
Gtkmm2ext::Keyboard::magic_widget_grab_focus ();
return false;
}
bool
EditorSections::leave_notify (GdkEventCrossing* ev)
{
if (ev->detail != GDK_NOTIFY_INFERIOR && ev->detail != GDK_NOTIFY_ANCESTOR) {
Gtkmm2ext::Keyboard::magic_widget_drop_focus ();
}
return false;
}