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/*
* Copyright (C) 2014 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2017-2019 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 <iostream>
#include <cmath>
#include <algorithm>
#include <pangomm/layout.h>
#include "pbd/compose.h"
#include "pbd/error.h"
#include "pbd/stacktrace.h"
#include "gtkmm2ext/utils.h"
#include "gtkmm2ext/menu_elems.h"
#include "gtkmm2ext/rgb_macros.h"
#include "gtkmm2ext/gui_thread.h"
#include "widgets/ardour_dropdown.h"
#include "pbd/i18n.h"
#define REFLECTION_HEIGHT 2
using namespace Gdk;
using namespace Gtk;
using namespace Glib;
using namespace PBD;
using namespace ArdourWidgets;
using namespace std;
ArdourDropdown::ArdourDropdown (Element e)
: _scrolling_disabled(false)
{
_menu.signal_size_request().connect (sigc::mem_fun(*this, &ArdourDropdown::menu_size_request));
_menu.set_reserve_toggle_size(false);
add_elements(e);
add_elements(ArdourButton::Menu);
}
ArdourDropdown::~ArdourDropdown ()
{
}
void
ArdourDropdown::menu_size_request(Requisition *req) {
req->width = max(req->width, get_allocation().get_width());
}
bool
ArdourDropdown::on_button_press_event (GdkEventButton* ev)
{
if (binding_proxy.button_press_handler (ev)) {
return true;
}
if (ev->type == GDK_BUTTON_PRESS && ev->button == 1) {
Gtkmm2ext::anchored_menu_popup(&_menu, this, get_text(), 1, ev->time);
}
return true;
}
void
ArdourDropdown::set_active (std::string const& text)
{
const MenuItem* current_active = _menu.get_active();
if (current_active && current_active->get_label() == text) {
set_text (text);
return;
}
using namespace Menu_Helpers;
const MenuList& items = _menu.items ();
int c = 0;
for (MenuList::const_iterator i = items.begin(); i != items.end(); ++i, ++c) {
if (i->get_label() == text) {
_menu.set_active(c);
_menu.activate_item(*i);
break;
}
}
set_text (text);
StateChanged (); /* EMIT SIGNAL */
}
bool
ArdourDropdown::on_scroll_event (GdkEventScroll* ev)
{
using namespace Menu_Helpers;
if (_scrolling_disabled) {
return false;
}
const MenuItem * current_active = _menu.get_active();
const MenuList& items = _menu.items ();
int c = 0;
if (!current_active) {
return true;
}
/* work around another gtkmm API clusterfuck
* const MenuItem* get_active () const
* void set_active (guint index)
*
* also MenuList.activate_item does not actually
* set it as active in the menu.
*
*/
switch (ev->direction) {
case GDK_SCROLL_UP:
for (MenuList::const_reverse_iterator i = items.rbegin(); i != items.rend(); ++i, ++c) {
if ( &(*i) != current_active) {
continue;
}
if (++i != items.rend()) {
c = items.size() - 2 - c;
assert(c >= 0);
_menu.set_active(c);
_menu.activate_item(*i);
}
break;
}
break;
case GDK_SCROLL_DOWN:
for (MenuList::const_iterator i = items.begin(); i != items.end(); ++i, ++c) {
if ( &(*i) != current_active) {
continue;
}
if (++i != items.end()) {
assert(c + 1 < (int) items.size());
_menu.set_active(c + 1);
_menu.activate_item(*i);
}
break;
}
break;
default:
break;
}
return true;
}
void
ArdourDropdown::clear_items ()
{
_menu.items ().clear ();
}
void
ArdourDropdown::AddMenuElem (Menu_Helpers::Element e)
{
using namespace Menu_Helpers;
MenuList& items = _menu.items ();
items.push_back (e);
}
void
ArdourDropdown::disable_scrolling()
{
_scrolling_disabled = true;
}
void
ArdourDropdown::append_text_item (std::string const& text) {
using namespace Gtkmm2ext;
AddMenuElem (MenuElemNoMnemonic (text, sigc::bind (sigc::mem_fun (*this, &ArdourDropdown::default_text_handler), text)));
}
void
ArdourDropdown::default_text_handler (std::string const& text) {
set_text (text);
StateChanged (); /* EMIT SIGNAL */
}
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