fde56cc730
git-svn-id: svn://localhost/ardour2/branches/3.0@8426 d708f5d6-7413-0410-9779-e7cbd77b26cf
1348 lines
33 KiB
C++
1348 lines
33 KiB
C++
/*
|
|
Copyright (C) 2000 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 <cstdlib>
|
|
#include <cmath>
|
|
#include <algorithm>
|
|
#include <string>
|
|
#include <list>
|
|
|
|
#include <libgnomecanvasmm.h>
|
|
#include <libgnomecanvasmm/canvas.h>
|
|
#include <libgnomecanvasmm/item.h>
|
|
|
|
#include "pbd/error.h"
|
|
#include "pbd/convert.h"
|
|
|
|
#include <gtkmm2ext/utils.h>
|
|
#include <gtkmm2ext/selector.h>
|
|
|
|
#include "ardour/session.h"
|
|
#include "ardour/utils.h"
|
|
#include "ardour/ladspa_plugin.h"
|
|
#include "ardour/processor.h"
|
|
#include "ardour/location.h"
|
|
|
|
#include "ardour_ui.h"
|
|
#include "global_signals.h"
|
|
#include "gui_thread.h"
|
|
#include "public_editor.h"
|
|
#include "time_axis_view.h"
|
|
#include "region_view.h"
|
|
#include "ghostregion.h"
|
|
#include "simplerect.h"
|
|
#include "simpleline.h"
|
|
#include "selection.h"
|
|
#include "keyboard.h"
|
|
#include "rgb_macros.h"
|
|
#include "utils.h"
|
|
#include "streamview.h"
|
|
#include "editor_drag.h"
|
|
|
|
#include "i18n.h"
|
|
|
|
using namespace std;
|
|
using namespace Gtk;
|
|
using namespace Gdk;
|
|
using namespace ARDOUR;
|
|
using namespace PBD;
|
|
using namespace Editing;
|
|
using namespace ArdourCanvas;
|
|
using Gtkmm2ext::Keyboard;
|
|
|
|
const double trim_handle_size = 6.0; /* pixels */
|
|
uint32_t TimeAxisView::extra_height;
|
|
uint32_t TimeAxisView::smaller_height;
|
|
int const TimeAxisView::_max_order = 512;
|
|
PBD::Signal1<void,TimeAxisView*> TimeAxisView::CatchDeletion;
|
|
|
|
TimeAxisView::TimeAxisView (ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* rent, Canvas& /*canvas*/)
|
|
: AxisView (sess),
|
|
controls_table (2, 8),
|
|
_y_position (0),
|
|
_editor (ed),
|
|
_order (0)
|
|
{
|
|
if (extra_height == 0) {
|
|
compute_heights ();
|
|
}
|
|
|
|
_canvas_background = new Group (*ed.get_background_group (), 0.0, 0.0);
|
|
_canvas_display = new Group (*ed.get_trackview_group (), 0.0, 0.0);
|
|
_canvas_display->hide(); // reveal as needed
|
|
|
|
selection_group = new Group (*_canvas_display);
|
|
selection_group->set_data (X_("timeselection"), (void *) 1);
|
|
selection_group->hide();
|
|
|
|
_ghost_group = new Group (*_canvas_display);
|
|
_ghost_group->lower_to_bottom();
|
|
_ghost_group->show();
|
|
|
|
control_parent = 0;
|
|
display_menu = 0;
|
|
_hidden = false;
|
|
in_destructor = false;
|
|
height = 0;
|
|
_effective_height = 0;
|
|
parent = rent;
|
|
_has_state = false;
|
|
last_name_entry_key_press_event = 0;
|
|
name_packing = NamePackingBits (0);
|
|
_resize_drag_start = -1;
|
|
|
|
/*
|
|
Create the standard LHS Controls
|
|
We create the top-level container and name add the name label here,
|
|
subclasses can add to the layout as required
|
|
*/
|
|
|
|
name_entry.set_name ("EditorTrackNameDisplay");
|
|
name_entry.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_button_release));
|
|
name_entry.signal_button_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_button_press));
|
|
name_entry.signal_key_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_release));
|
|
name_entry.signal_activate().connect (sigc::mem_fun(*this, &TimeAxisView::name_entry_activated));
|
|
name_entry.signal_focus_in_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_focus_in));
|
|
name_entry.signal_focus_out_event().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_focus_out));
|
|
Gtkmm2ext::set_size_request_to_display_given_text (name_entry, N_("gTortnam"), 10, 10); // just represents a short name
|
|
|
|
name_label.set_name ("TrackLabel");
|
|
name_label.set_alignment (0.0, 0.5);
|
|
|
|
/* typically, either name_label OR name_entry are visible,
|
|
but not both. its up to derived classes to show/hide them as they
|
|
wish.
|
|
*/
|
|
|
|
name_hbox.show ();
|
|
|
|
controls_table.set_size_request (200);
|
|
controls_table.set_border_width (2);
|
|
controls_table.set_row_spacings (0);
|
|
controls_table.set_col_spacings (0);
|
|
controls_table.set_homogeneous (true);
|
|
|
|
controls_table.attach (name_hbox, 0, 5, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 3, 0);
|
|
controls_table.show_all ();
|
|
controls_table.set_no_show_all ();
|
|
|
|
resizer.set_size_request (10, 6);
|
|
resizer.set_name ("ResizeHandle");
|
|
resizer.signal_expose_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_expose));
|
|
resizer.signal_button_press_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_button_press));
|
|
resizer.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_button_release));
|
|
resizer.signal_motion_notify_event().connect (sigc::mem_fun (*this, &TimeAxisView::resizer_motion));
|
|
|
|
resizer.set_events (Gdk::BUTTON_PRESS_MASK|
|
|
Gdk::BUTTON_RELEASE_MASK|
|
|
Gdk::POINTER_MOTION_MASK|
|
|
Gdk::SCROLL_MASK);
|
|
|
|
resizer_box.pack_start (resizer, false, false);
|
|
resizer.show ();
|
|
resizer_box.show();
|
|
|
|
HSeparator* separator = manage (new HSeparator());
|
|
|
|
controls_vbox.pack_start (controls_table, false, false);
|
|
controls_vbox.pack_end (resizer_box, false, false);
|
|
controls_vbox.show ();
|
|
|
|
//controls_ebox.set_name ("TimeAxisViewControlsBaseUnselected");
|
|
controls_ebox.add (controls_vbox);
|
|
controls_ebox.add_events (BUTTON_PRESS_MASK|BUTTON_RELEASE_MASK|SCROLL_MASK);
|
|
controls_ebox.set_flags (CAN_FOCUS);
|
|
|
|
controls_ebox.signal_button_release_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_button_release));
|
|
controls_ebox.signal_scroll_event().connect (sigc::mem_fun (*this, &TimeAxisView::controls_ebox_scroll), true);
|
|
|
|
controls_hbox.pack_start (controls_ebox, false, false);
|
|
controls_hbox.show ();
|
|
|
|
time_axis_vbox.pack_start (controls_hbox, true, true);
|
|
time_axis_vbox.pack_end (*separator, false, false);
|
|
time_axis_vbox.show();
|
|
|
|
ColorsChanged.connect (sigc::mem_fun (*this, &TimeAxisView::color_handler));
|
|
|
|
GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&TimeAxisView::erase_ghost, this, _1), gui_context());
|
|
}
|
|
|
|
TimeAxisView::~TimeAxisView()
|
|
{
|
|
in_destructor = true;
|
|
|
|
for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
|
|
delete *i;
|
|
}
|
|
|
|
for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
|
|
delete (*i)->rect;
|
|
delete (*i)->start_trim;
|
|
delete (*i)->end_trim;
|
|
|
|
}
|
|
|
|
for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
|
|
delete (*i)->rect;
|
|
delete (*i)->start_trim;
|
|
delete (*i)->end_trim;
|
|
}
|
|
|
|
delete selection_group;
|
|
selection_group = 0;
|
|
|
|
delete _canvas_background;
|
|
_canvas_background = 0;
|
|
|
|
delete _canvas_display;
|
|
_canvas_display = 0;
|
|
|
|
delete display_menu;
|
|
display_menu = 0;
|
|
}
|
|
|
|
/** Display this TimeAxisView as the nth component of the parent box, at y.
|
|
*
|
|
* @param y y position.
|
|
* @param nth index for this TimeAxisView, increased if this view has children.
|
|
* @param parent parent component.
|
|
* @return height of this TimeAxisView.
|
|
*/
|
|
guint32
|
|
TimeAxisView::show_at (double y, int& nth, VBox *parent)
|
|
{
|
|
if (control_parent) {
|
|
control_parent->reorder_child (time_axis_vbox, nth);
|
|
} else {
|
|
control_parent = parent;
|
|
parent->pack_start (time_axis_vbox, false, false);
|
|
parent->reorder_child (time_axis_vbox, nth);
|
|
}
|
|
|
|
_order = nth;
|
|
|
|
if (_y_position != y) {
|
|
_canvas_display->property_y () = y;
|
|
_canvas_background->property_y () = y;
|
|
/* silly canvas */
|
|
_canvas_display->move (0.0, 0.0);
|
|
_canvas_background->move (0.0, 0.0);
|
|
_y_position = y;
|
|
|
|
}
|
|
|
|
_canvas_background->raise_to_top ();
|
|
_canvas_display->raise_to_top ();
|
|
|
|
if (_marked_for_display) {
|
|
time_axis_vbox.show ();
|
|
controls_ebox.show ();
|
|
_canvas_background->show ();
|
|
}
|
|
|
|
_hidden = false;
|
|
|
|
_effective_height = current_height ();
|
|
|
|
/* now show children */
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
if (canvas_item_visible ((*i)->_canvas_display)) {
|
|
++nth;
|
|
_effective_height += (*i)->show_at (y + _effective_height, nth, parent);
|
|
}
|
|
}
|
|
|
|
return _effective_height;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::clip_to_viewport ()
|
|
{
|
|
if (_marked_for_display) {
|
|
if (_y_position + _effective_height < _editor.get_trackview_group_vertical_offset () || _y_position > _editor.get_trackview_group_vertical_offset () + _canvas_display->get_canvas()->get_height()) {
|
|
_canvas_background->hide ();
|
|
_canvas_display->hide ();
|
|
return;
|
|
}
|
|
_canvas_background->show ();
|
|
_canvas_display->show ();
|
|
}
|
|
return;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::controls_ebox_scroll (GdkEventScroll* ev)
|
|
{
|
|
if (Keyboard::some_magic_widget_has_focus()) {
|
|
return false;
|
|
}
|
|
|
|
switch (ev->direction) {
|
|
case GDK_SCROLL_UP:
|
|
if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
|
|
step_height (true);
|
|
return true;
|
|
} else if (Keyboard::no_modifiers_active (ev->state)) {
|
|
_editor.scroll_tracks_up_line();
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
case GDK_SCROLL_DOWN:
|
|
if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
|
|
step_height (false);
|
|
return true;
|
|
} else if (Keyboard::no_modifiers_active (ev->state)) {
|
|
_editor.scroll_tracks_down_line();
|
|
return true;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
/* no handling for left/right, yet */
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::controls_ebox_button_release (GdkEventButton* ev)
|
|
{
|
|
switch (ev->button) {
|
|
case 1:
|
|
selection_click (ev);
|
|
break;
|
|
|
|
case 3:
|
|
popup_display_menu (ev->time);
|
|
break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::selection_click (GdkEventButton* ev)
|
|
{
|
|
Selection::Operation op = ArdourKeyboard::selection_type (ev->state);
|
|
_editor.set_selected_track (*this, op, false);
|
|
}
|
|
|
|
void
|
|
TimeAxisView::hide ()
|
|
{
|
|
if (_hidden) {
|
|
return;
|
|
}
|
|
|
|
_canvas_display->hide ();
|
|
_canvas_background->hide ();
|
|
|
|
if (control_parent) {
|
|
control_parent->remove (time_axis_vbox);
|
|
control_parent = 0;
|
|
}
|
|
|
|
_y_position = -1;
|
|
_hidden = true;
|
|
|
|
/* now hide children */
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->hide ();
|
|
}
|
|
|
|
/* if its hidden, it cannot be selected */
|
|
_editor.get_selection().remove (this);
|
|
/* and neither can its regions */
|
|
_editor.get_selection().remove_regions (this);
|
|
|
|
Hiding ();
|
|
}
|
|
|
|
void
|
|
TimeAxisView::step_height (bool bigger)
|
|
{
|
|
static const uint32_t step = 25;
|
|
|
|
if (bigger) {
|
|
if (height == preset_height(HeightSmall)) {
|
|
set_height (preset_height(HeightSmaller));
|
|
}
|
|
else if (height == preset_height(HeightSmaller)) {
|
|
set_height (preset_height(HeightNormal));
|
|
}
|
|
else {
|
|
set_height (height + step);
|
|
}
|
|
|
|
} else {
|
|
if ( height == preset_height(HeightSmall)){
|
|
return;
|
|
}
|
|
|
|
if (height <= preset_height (HeightSmaller) && height > preset_height (HeightSmall)) {
|
|
set_height (preset_height(HeightSmall));
|
|
}
|
|
else if ( height <= preset_height (HeightNormal) && height > preset_height (HeightSmaller)){
|
|
set_height (preset_height(HeightSmaller));
|
|
}
|
|
else {
|
|
set_height (height - step);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_heights (uint32_t h)
|
|
{
|
|
TrackSelection& ts (_editor.get_selection().tracks);
|
|
|
|
for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
|
|
(*i)->set_height (h);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_height (Height h)
|
|
{
|
|
set_height (preset_height (h));
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_height (uint32_t h)
|
|
{
|
|
if (h < preset_height (HeightSmall)) {
|
|
h = preset_height (HeightSmall);
|
|
}
|
|
|
|
time_axis_vbox.property_height_request () = h;
|
|
height = h;
|
|
|
|
for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
|
|
(*i)->set_height ();
|
|
}
|
|
|
|
if (canvas_item_visible (selection_group)) {
|
|
/* resize the selection rect */
|
|
show_selection (_editor.get_selection().time);
|
|
}
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_key_release (GdkEventKey* ev)
|
|
{
|
|
TrackViewList::iterator i;
|
|
|
|
switch (ev->keyval) {
|
|
case GDK_Escape:
|
|
name_entry.select_region (0,0);
|
|
controls_ebox.grab_focus ();
|
|
name_entry_changed ();
|
|
return true;
|
|
|
|
/* Shift+Tab Keys Pressed. Note that for Shift+Tab, GDK actually
|
|
* generates a different ev->keyval, rather than setting
|
|
* ev->state.
|
|
*/
|
|
case GDK_ISO_Left_Tab:
|
|
case GDK_Tab:
|
|
{
|
|
name_entry_changed ();
|
|
TrackViewList const & allviews = _editor.get_track_views ();
|
|
TrackViewList::const_iterator i = find (allviews.begin(), allviews.end(), this);
|
|
if (ev->keyval == GDK_Tab) {
|
|
if (i != allviews.end()) {
|
|
do {
|
|
if (++i == allviews.end()) {
|
|
return true;
|
|
}
|
|
} while((*i)->hidden());
|
|
}
|
|
} else {
|
|
if (i != allviews.begin()) {
|
|
do {
|
|
if (i == allviews.begin()) {
|
|
return true;
|
|
}
|
|
--i;
|
|
} while ((*i)->hidden());
|
|
}
|
|
}
|
|
|
|
|
|
/* resize to show editable name display */
|
|
|
|
if ((*i)->current_height() <= preset_height (HeightSmaller)) {
|
|
(*i)->set_height (HeightSmaller);
|
|
}
|
|
|
|
(*i)->name_entry.grab_focus();
|
|
}
|
|
return true;
|
|
|
|
case GDK_Up:
|
|
case GDK_Down:
|
|
name_entry_changed ();
|
|
return true;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
#ifdef TIMEOUT_NAME_EDIT
|
|
/* adapt the timeout to reflect the user's typing speed */
|
|
|
|
guint32 name_entry_timeout;
|
|
|
|
if (last_name_entry_key_press_event) {
|
|
/* timeout is 1/2 second or 5 times their current inter-char typing speed */
|
|
name_entry_timeout = std::max (500U, (5 * (ev->time - last_name_entry_key_press_event)));
|
|
} else {
|
|
/* start with a 1 second timeout */
|
|
name_entry_timeout = 1000;
|
|
}
|
|
|
|
last_name_entry_key_press_event = ev->time;
|
|
|
|
/* wait 1 seconds and if no more keys are pressed, act as if they pressed enter */
|
|
|
|
name_entry_key_timeout.disconnect();
|
|
name_entry_key_timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &TimeAxisView::name_entry_key_timed_out), name_entry_timeout);
|
|
#endif
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_focus_in (GdkEventFocus*)
|
|
{
|
|
name_entry.select_region (0, -1);
|
|
name_entry.set_name ("EditorActiveTrackNameDisplay");
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_focus_out (GdkEventFocus*)
|
|
{
|
|
/* clean up */
|
|
|
|
last_name_entry_key_press_event = 0;
|
|
name_entry_key_timeout.disconnect ();
|
|
name_entry.set_name ("EditorTrackNameDisplay");
|
|
name_entry.select_region (0,0);
|
|
|
|
/* do the real stuff */
|
|
|
|
name_entry_changed ();
|
|
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_key_timed_out ()
|
|
{
|
|
name_entry_activated();
|
|
return false;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::name_entry_activated ()
|
|
{
|
|
controls_ebox.grab_focus();
|
|
}
|
|
|
|
void
|
|
TimeAxisView::name_entry_changed ()
|
|
{
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_button_press (GdkEventButton *ev)
|
|
{
|
|
if (ev->button == 3) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::name_entry_button_release (GdkEventButton *ev)
|
|
{
|
|
if (ev->button == 3) {
|
|
popup_display_menu (ev->time);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::conditionally_add_to_selection ()
|
|
{
|
|
Selection& s (_editor.get_selection ());
|
|
|
|
if (!s.selected (this)) {
|
|
_editor.set_selected_track (*this, Selection::Set);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::popup_display_menu (guint32 when)
|
|
{
|
|
if (display_menu == 0) {
|
|
build_display_menu ();
|
|
}
|
|
|
|
conditionally_add_to_selection ();
|
|
display_menu->popup (1, when);
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_selected (bool yn)
|
|
{
|
|
if (yn == _selected) {
|
|
return;
|
|
}
|
|
|
|
Selectable::set_selected (yn);
|
|
|
|
if (_selected) {
|
|
controls_ebox.set_name (controls_base_selected_name);
|
|
time_axis_vbox.set_name (controls_base_selected_name);
|
|
controls_vbox.set_name (controls_base_selected_name);
|
|
} else {
|
|
controls_ebox.set_name (controls_base_unselected_name);
|
|
time_axis_vbox.set_name (controls_base_unselected_name);
|
|
controls_vbox.set_name (controls_base_unselected_name);
|
|
hide_selection ();
|
|
|
|
/* children will be set for the yn=true case. but when deselecting
|
|
the editor only has a list of top-level trackviews, so we
|
|
have to do this here.
|
|
*/
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->set_selected (false);
|
|
}
|
|
}
|
|
|
|
resizer.queue_draw ();
|
|
}
|
|
|
|
void
|
|
TimeAxisView::build_display_menu ()
|
|
{
|
|
using namespace Menu_Helpers;
|
|
|
|
delete display_menu;
|
|
|
|
display_menu = new Menu;
|
|
display_menu->set_name ("ArdourContextMenu");
|
|
|
|
// Just let implementing classes define what goes into the manu
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_samples_per_unit (double spu)
|
|
{
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->set_samples_per_unit (spu);
|
|
}
|
|
|
|
AnalysisFeatureList::const_iterator i;
|
|
list<ArdourCanvas::SimpleLine*>::iterator l;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::show_timestretch (framepos_t start, framepos_t end)
|
|
{
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->show_timestretch (start, end);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::hide_timestretch ()
|
|
{
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->hide_timestretch ();
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::show_selection (TimeSelection& ts)
|
|
{
|
|
double x1;
|
|
double x2;
|
|
double y2;
|
|
SelectionRect *rect;
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->show_selection (ts);
|
|
}
|
|
|
|
if (canvas_item_visible (selection_group)) {
|
|
while (!used_selection_rects.empty()) {
|
|
free_selection_rects.push_front (used_selection_rects.front());
|
|
used_selection_rects.pop_front();
|
|
free_selection_rects.front()->rect->hide();
|
|
free_selection_rects.front()->start_trim->hide();
|
|
free_selection_rects.front()->end_trim->hide();
|
|
}
|
|
selection_group->hide();
|
|
}
|
|
|
|
selection_group->show();
|
|
selection_group->raise_to_top();
|
|
|
|
for (list<AudioRange>::iterator i = ts.begin(); i != ts.end(); ++i) {
|
|
framepos_t start, end;
|
|
framecnt_t cnt;
|
|
|
|
start = (*i).start;
|
|
end = (*i).end;
|
|
cnt = end - start + 1;
|
|
|
|
rect = get_selection_rect ((*i).id);
|
|
|
|
x1 = _editor.frame_to_unit (start);
|
|
x2 = _editor.frame_to_unit (start + cnt - 1);
|
|
y2 = current_height();
|
|
|
|
rect->rect->property_x1() = x1;
|
|
rect->rect->property_y1() = 1.0;
|
|
rect->rect->property_x2() = x2;
|
|
rect->rect->property_y2() = y2;
|
|
|
|
// trim boxes are at the top for selections
|
|
|
|
if (x2 > x1) {
|
|
rect->start_trim->property_x1() = x1;
|
|
rect->start_trim->property_y1() = 1.0;
|
|
rect->start_trim->property_x2() = x1 + trim_handle_size;
|
|
rect->start_trim->property_y2() = y2;
|
|
|
|
rect->end_trim->property_x1() = x2 - trim_handle_size;
|
|
rect->end_trim->property_y1() = 1.0;
|
|
rect->end_trim->property_x2() = x2;
|
|
rect->end_trim->property_y2() = y2;
|
|
|
|
rect->start_trim->show();
|
|
rect->end_trim->show();
|
|
} else {
|
|
rect->start_trim->hide();
|
|
rect->end_trim->hide();
|
|
}
|
|
|
|
rect->rect->show ();
|
|
used_selection_rects.push_back (rect);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::reshow_selection (TimeSelection& ts)
|
|
{
|
|
show_selection (ts);
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->show_selection (ts);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::hide_selection ()
|
|
{
|
|
if (canvas_item_visible (selection_group)) {
|
|
while (!used_selection_rects.empty()) {
|
|
free_selection_rects.push_front (used_selection_rects.front());
|
|
used_selection_rects.pop_front();
|
|
free_selection_rects.front()->rect->hide();
|
|
free_selection_rects.front()->start_trim->hide();
|
|
free_selection_rects.front()->end_trim->hide();
|
|
}
|
|
selection_group->hide();
|
|
}
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->hide_selection ();
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top)
|
|
{
|
|
/* find the selection rect this is for. we have the item corresponding to one
|
|
of the trim handles.
|
|
*/
|
|
|
|
for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
|
|
if ((*i)->start_trim == item || (*i)->end_trim == item) {
|
|
|
|
/* make one trim handle be "above" the other so that if they overlap,
|
|
the top one is the one last used.
|
|
*/
|
|
|
|
(*i)->rect->raise_to_top ();
|
|
(put_start_on_top ? (*i)->start_trim : (*i)->end_trim)->raise_to_top ();
|
|
(put_start_on_top ? (*i)->end_trim : (*i)->start_trim)->raise_to_top ();
|
|
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
SelectionRect *
|
|
TimeAxisView::get_selection_rect (uint32_t id)
|
|
{
|
|
SelectionRect *rect;
|
|
|
|
/* check to see if we already have a visible rect for this particular selection ID */
|
|
|
|
for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
|
|
if ((*i)->id == id) {
|
|
return (*i);
|
|
}
|
|
}
|
|
|
|
/* ditto for the free rect list */
|
|
|
|
for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
|
|
if ((*i)->id == id) {
|
|
SelectionRect* ret = (*i);
|
|
free_selection_rects.erase (i);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* no existing matching rect, so go get a new one from the free list, or create one if there are none */
|
|
|
|
if (free_selection_rects.empty()) {
|
|
|
|
rect = new SelectionRect;
|
|
|
|
rect->rect = new SimpleRect (*selection_group);
|
|
rect->rect->property_outline_what() = 0x0;
|
|
rect->rect->property_x1() = 0.0;
|
|
rect->rect->property_y1() = 0.0;
|
|
rect->rect->property_x2() = 0.0;
|
|
rect->rect->property_y2() = 0.0;
|
|
rect->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
|
|
|
|
rect->start_trim = new SimpleRect (*selection_group);
|
|
rect->start_trim->property_outline_what() = 0x0;
|
|
rect->start_trim->property_x1() = 0.0;
|
|
rect->start_trim->property_x2() = 0.0;
|
|
|
|
rect->end_trim = new SimpleRect (*selection_group);
|
|
rect->end_trim->property_outline_what() = 0x0;
|
|
rect->end_trim->property_x1() = 0.0;
|
|
rect->end_trim->property_x2() = 0.0;
|
|
|
|
free_selection_rects.push_front (rect);
|
|
|
|
rect->rect->signal_event().connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_rect_event), rect->rect, rect));
|
|
rect->start_trim->signal_event().connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_start_trim_event), rect->rect, rect));
|
|
rect->end_trim->signal_event().connect (sigc::bind (sigc::mem_fun (_editor, &PublicEditor::canvas_selection_end_trim_event), rect->rect, rect));
|
|
}
|
|
|
|
rect = free_selection_rects.front();
|
|
rect->id = id;
|
|
free_selection_rects.pop_front();
|
|
return rect;
|
|
}
|
|
|
|
struct null_deleter { void operator()(void const *) const {} };
|
|
|
|
bool
|
|
TimeAxisView::is_child (TimeAxisView* tav)
|
|
{
|
|
return find (children.begin(), children.end(), boost::shared_ptr<TimeAxisView>(tav, null_deleter())) != children.end();
|
|
}
|
|
|
|
void
|
|
TimeAxisView::add_child (boost::shared_ptr<TimeAxisView> child)
|
|
{
|
|
children.push_back (child);
|
|
}
|
|
|
|
void
|
|
TimeAxisView::remove_child (boost::shared_ptr<TimeAxisView> child)
|
|
{
|
|
Children::iterator i;
|
|
|
|
if ((i = find (children.begin(), children.end(), child)) != children.end()) {
|
|
children.erase (i);
|
|
}
|
|
}
|
|
|
|
/** Get selectable things within a given range.
|
|
* @param start Start time in session frames.
|
|
* @param end End time in session frames.
|
|
* @param top Top y range, in trackview coordinates (ie 0 is the top of the track view)
|
|
* @param bot Bottom y range, in trackview coordinates (ie 0 is the top of the track view)
|
|
* @param result Filled in with selectable things.
|
|
*/
|
|
void
|
|
TimeAxisView::get_selectables (framepos_t /*start*/, framepos_t /*end*/, double /*top*/, double /*bot*/, list<Selectable*>& /*result*/)
|
|
{
|
|
return;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::get_inverted_selectables (Selection& /*sel*/, list<Selectable*>& /*result*/)
|
|
{
|
|
return;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::add_ghost (RegionView* rv)
|
|
{
|
|
GhostRegion* gr = rv->add_ghost (*this);
|
|
|
|
if(gr) {
|
|
ghosts.push_back(gr);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::remove_ghost (RegionView* rv)
|
|
{
|
|
rv->remove_ghost_in (*this);
|
|
}
|
|
|
|
void
|
|
TimeAxisView::erase_ghost (GhostRegion* gr)
|
|
{
|
|
if (in_destructor) {
|
|
return;
|
|
}
|
|
|
|
for (list<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
|
|
if ((*i) == gr) {
|
|
ghosts.erase (i);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::touched (double top, double bot)
|
|
{
|
|
/* remember: this is X Window - coordinate space starts in upper left and moves down.
|
|
y_position is the "origin" or "top" of the track.
|
|
*/
|
|
|
|
double mybot = _y_position + current_height();
|
|
|
|
return ((_y_position <= bot && _y_position >= top) ||
|
|
((mybot <= bot) && (top < mybot)) ||
|
|
(mybot >= bot && _y_position < top));
|
|
}
|
|
|
|
void
|
|
TimeAxisView::set_parent (TimeAxisView& p)
|
|
{
|
|
parent = &p;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::has_state () const
|
|
{
|
|
return _has_state;
|
|
}
|
|
|
|
TimeAxisView*
|
|
TimeAxisView::get_parent_with_state ()
|
|
{
|
|
if (parent == 0) {
|
|
return 0;
|
|
}
|
|
|
|
if (parent->has_state()) {
|
|
return parent;
|
|
}
|
|
|
|
return parent->get_parent_with_state ();
|
|
}
|
|
|
|
|
|
XMLNode&
|
|
TimeAxisView::get_state ()
|
|
{
|
|
/* XXX: is this method used? */
|
|
|
|
XMLNode* node = new XMLNode ("TAV-" + name());
|
|
char buf[32];
|
|
|
|
snprintf (buf, sizeof(buf), "%u", height);
|
|
node->add_property ("height", buf);
|
|
node->add_property ("marked-for-display", (_marked_for_display ? "1" : "0"));
|
|
return *node;
|
|
}
|
|
|
|
int
|
|
TimeAxisView::set_state (const XMLNode& node, int /*version*/)
|
|
{
|
|
const XMLProperty *prop;
|
|
|
|
/* XXX: I think this might be vestigial */
|
|
if ((prop = node.property ("marked-for-display")) != 0) {
|
|
_marked_for_display = (prop->value() == "1");
|
|
}
|
|
|
|
if ((prop = node.property ("shown-editor")) != 0) {
|
|
_marked_for_display = string_is_affirmative (prop->value ());
|
|
}
|
|
|
|
if ((prop = node.property ("track-height")) != 0) {
|
|
|
|
if (prop->value() == "largest") {
|
|
set_height (HeightLargest);
|
|
} else if (prop->value() == "large") {
|
|
set_height (HeightLarge);
|
|
} else if (prop->value() == "larger") {
|
|
set_height (HeightLarger);
|
|
} else if (prop->value() == "normal") {
|
|
set_height (HeightNormal);
|
|
} else if (prop->value() == "smaller") {
|
|
set_height (HeightSmaller);
|
|
} else if (prop->value() == "small") {
|
|
set_height (HeightSmall);
|
|
} else {
|
|
error << string_compose(_("unknown track height name \"%1\" in XML GUI information"), prop->value()) << endmsg;
|
|
set_height (HeightNormal);
|
|
}
|
|
|
|
} else if ((prop = node.property ("height")) != 0) {
|
|
|
|
set_height (atoi (prop->value()));
|
|
|
|
} else {
|
|
|
|
set_height (HeightNormal);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::reset_height()
|
|
{
|
|
set_height (height);
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
(*i)->set_height ((*i)->height);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::compute_heights ()
|
|
{
|
|
Gtk::Window window (Gtk::WINDOW_TOPLEVEL);
|
|
Gtk::Table two_row_table (2, 8);
|
|
Gtk::Table one_row_table (1, 8);
|
|
Button* buttons[5];
|
|
const int border_width = 2;
|
|
extra_height = (2 * border_width)
|
|
//+ 2 // 2 pixels for the hseparator between TimeAxisView control areas
|
|
+ 6; // resizer button (3 x 2 pixel elements + 2 x 2 pixel gaps)
|
|
|
|
window.add (one_row_table);
|
|
|
|
one_row_table.set_border_width (border_width);
|
|
one_row_table.set_row_spacings (0);
|
|
one_row_table.set_col_spacings (0);
|
|
one_row_table.set_homogeneous (true);
|
|
|
|
two_row_table.set_border_width (border_width);
|
|
two_row_table.set_row_spacings (0);
|
|
two_row_table.set_col_spacings (0);
|
|
two_row_table.set_homogeneous (true);
|
|
|
|
for (int i = 0; i < 5; ++i) {
|
|
buttons[i] = manage (new Button (X_("f")));
|
|
buttons[i]->set_name ("TrackMuteButton");
|
|
}
|
|
|
|
one_row_table.attach (*buttons[0], 6, 7, 0, 1, Gtk::FILL|Gtk::EXPAND, Gtk::FILL|Gtk::EXPAND, 0, 0);
|
|
|
|
one_row_table.show_all ();
|
|
Gtk::Requisition req(one_row_table.size_request ());
|
|
|
|
// height required to show 1 row of buttons
|
|
|
|
smaller_height = req.height + extra_height;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::show_name_label ()
|
|
{
|
|
if (!(name_packing & NameLabelPacked)) {
|
|
name_hbox.pack_start (name_label, true, true);
|
|
name_packing = NamePackingBits (name_packing | NameLabelPacked);
|
|
name_hbox.show ();
|
|
name_label.show ();
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::show_name_entry ()
|
|
{
|
|
if (!(name_packing & NameEntryPacked)) {
|
|
name_hbox.pack_start (name_entry, true, true);
|
|
name_packing = NamePackingBits (name_packing | NameEntryPacked);
|
|
name_hbox.show ();
|
|
name_entry.show ();
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::hide_name_label ()
|
|
{
|
|
if (name_packing & NameLabelPacked) {
|
|
name_hbox.remove (name_label);
|
|
name_packing = NamePackingBits (name_packing & ~NameLabelPacked);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::hide_name_entry ()
|
|
{
|
|
if (name_packing & NameEntryPacked) {
|
|
name_hbox.remove (name_entry);
|
|
name_packing = NamePackingBits (name_packing & ~NameEntryPacked);
|
|
}
|
|
}
|
|
|
|
void
|
|
TimeAxisView::color_handler ()
|
|
{
|
|
for (list<GhostRegion*>::iterator i=ghosts.begin(); i != ghosts.end(); i++ ) {
|
|
(*i)->set_colors();
|
|
}
|
|
|
|
for (list<SelectionRect*>::iterator i = used_selection_rects.begin(); i != used_selection_rects.end(); ++i) {
|
|
|
|
(*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
|
|
(*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
|
|
(*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
(*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
|
|
(*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
(*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
}
|
|
|
|
for (list<SelectionRect*>::iterator i = free_selection_rects.begin(); i != free_selection_rects.end(); ++i) {
|
|
|
|
(*i)->rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SelectionRect.get();
|
|
(*i)->rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
|
|
(*i)->start_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
(*i)->start_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
|
|
(*i)->end_trim->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
(*i)->end_trim->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_Selection.get();
|
|
}
|
|
}
|
|
|
|
/** @return Pair: TimeAxisView, layer index.
|
|
* TimeAxisView is non-0 if this object covers y, or one of its children does.
|
|
* If the covering object is a child axis, then the child is returned.
|
|
* TimeAxisView is 0 otherwise.
|
|
* Layer index is the layer number if the TimeAxisView is valid and is in stacked
|
|
* region display mode, otherwise 0.
|
|
*/
|
|
std::pair<TimeAxisView*, layer_t>
|
|
TimeAxisView::covers_y_position (double y)
|
|
{
|
|
if (hidden()) {
|
|
return std::make_pair ( (TimeAxisView *) 0, 0);
|
|
}
|
|
|
|
if (_y_position <= y && y < (_y_position + height)) {
|
|
|
|
/* work out the layer index if appropriate */
|
|
layer_t l = 0;
|
|
if (layer_display () == Stacked && view ()) {
|
|
/* compute layer */
|
|
l = layer_t ((_y_position + height - y) / (view()->child_height ()));
|
|
/* clamp to max layers to be on the safe side; sometimes the above calculation
|
|
returns a too-high value */
|
|
if (l >= view()->layers ()) {
|
|
l = view()->layers() - 1;
|
|
}
|
|
}
|
|
|
|
return std::make_pair (this, l);
|
|
}
|
|
|
|
for (Children::const_iterator i = children.begin(); i != children.end(); ++i) {
|
|
|
|
std::pair<TimeAxisView*, int> const r = (*i)->covers_y_position (y);
|
|
if (r.first) {
|
|
return r;
|
|
}
|
|
}
|
|
|
|
return std::make_pair ( (TimeAxisView *) 0, 0);
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::resizer_button_press (GdkEventButton* event)
|
|
{
|
|
_resize_drag_start = event->y_root;
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::resizer_button_release (GdkEventButton*)
|
|
{
|
|
_editor.stop_canvas_autoscroll ();
|
|
_resize_drag_start = -1;
|
|
return true;
|
|
}
|
|
|
|
void
|
|
TimeAxisView::idle_resize (uint32_t h)
|
|
{
|
|
set_height (h);
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::resizer_motion (GdkEventMotion* ev)
|
|
{
|
|
if (_resize_drag_start >= 0) {
|
|
/* (ab)use the DragManager to do autoscrolling; adjust the event coordinates
|
|
into the world coordinate space that DragManager::motion_handler is expecting,
|
|
and then fake a DragManager motion event so that when maybe_autoscroll
|
|
asks DragManager for the current pointer position it will get the correct
|
|
answers.
|
|
*/
|
|
int tx, ty;
|
|
resizer.translate_coordinates (*control_parent, ev->x, ev->y, tx, ty);
|
|
ev->y = ty - _editor.get_trackview_group_vertical_offset();
|
|
_editor.drags()->motion_handler ((GdkEvent *) ev, false);
|
|
_editor.maybe_autoscroll (false, true);
|
|
|
|
/* now do the actual TAV resize */
|
|
int32_t const delta = (int32_t) floor (ev->y_root - _resize_drag_start);
|
|
_editor.add_to_idle_resize (this, delta);
|
|
_resize_drag_start = ev->y_root;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::resizer_expose (GdkEventExpose* event)
|
|
{
|
|
int w, h, x, y, d;
|
|
Glib::RefPtr<Gdk::Window> win (resizer.get_window());
|
|
Glib::RefPtr<Gdk::GC> dark (resizer.get_style()->get_fg_gc (STATE_NORMAL));
|
|
Glib::RefPtr<Gdk::GC> light (resizer.get_style()->get_bg_gc (STATE_NORMAL));
|
|
|
|
win->draw_rectangle (controls_ebox.get_style()->get_bg_gc(STATE_NORMAL),
|
|
true,
|
|
event->area.x,
|
|
event->area.y,
|
|
event->area.width,
|
|
event->area.height);
|
|
|
|
win->get_geometry (x, y, w, h, d);
|
|
|
|
/* handle/line #1 */
|
|
|
|
win->draw_line (dark, 0, 0, w - 2, 0);
|
|
win->draw_point (dark, 0, 1);
|
|
win->draw_line (light, 1, 1, w - 1, 1);
|
|
win->draw_point (light, w - 1, 0);
|
|
|
|
/* handle/line #2 */
|
|
|
|
win->draw_line (dark, 0, 4, w - 2, 4);
|
|
win->draw_point (dark, 0, 5);
|
|
win->draw_line (light, 1, 5, w - 1, 5);
|
|
win->draw_point (light, w - 1, 4);
|
|
|
|
/* use vertical resize mouse cursor */
|
|
win->set_cursor(Gdk::Cursor(Gdk::SB_V_DOUBLE_ARROW));
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
TimeAxisView::set_visibility (bool yn)
|
|
{
|
|
if (yn != marked_for_display()) {
|
|
if (yn) {
|
|
set_marked_for_display (true);
|
|
canvas_display()->show();
|
|
} else {
|
|
set_marked_for_display (false);
|
|
hide ();
|
|
}
|
|
return true; // things changed
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
uint32_t
|
|
TimeAxisView::preset_height (Height h)
|
|
{
|
|
switch (h) {
|
|
case HeightLargest:
|
|
return extra_height + 48 + 250;
|
|
case HeightLarger:
|
|
return extra_height + 48 + 150;
|
|
case HeightLarge:
|
|
return extra_height + 48 + 50;
|
|
case HeightNormal:
|
|
return extra_height + 48;
|
|
case HeightSmall:
|
|
return 27;
|
|
case HeightSmaller:
|
|
return smaller_height;
|
|
}
|
|
|
|
/* NOTREACHED */
|
|
return 0;
|
|
}
|
|
|
|
/** @return Child time axis views that are not hidden */
|
|
TimeAxisView::Children
|
|
TimeAxisView::get_child_list ()
|
|
{
|
|
Children c;
|
|
|
|
for (Children::iterator i = children.begin(); i != children.end(); ++i) {
|
|
if (!(*i)->hidden()) {
|
|
c.push_back(*i);
|
|
}
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
|