diff --git a/libs/widgets/metabutton.cc b/libs/widgets/metabutton.cc new file mode 100644 index 0000000000..638b32e34f --- /dev/null +++ b/libs/widgets/metabutton.cc @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2025 Robin Gareus + * + * 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 "gtkmm2ext/utils.h" + +#include "widgets/metabutton.h" + +using namespace Gtk; +using namespace std; +using namespace ArdourWidgets; + +MetaButton::MetaButton () + : _active (0) +{ + _menu.signal_size_request ().connect (sigc::mem_fun (*this, &MetaButton::menu_size_request)); + _menu.set_reserve_toggle_size (false); + + add_elements (default_elements); + add_elements (ArdourButton::Menu); +} + +MetaButton::~MetaButton () +{ +} + +void +MetaButton::menu_size_request (Requisition* req) +{ + req->width = max (req->width, get_allocation ().get_width ()); +} + +void +MetaButton::clear_items () +{ + _menu.items ().clear (); +} + +void +MetaButton::add_item (std::string const& label, std::string const& menutext, sigc::slot const& cb) +{ + using namespace Menu_Helpers; + + add_sizing_text (label); + MenuList& items = _menu.items (); + items.push_back (MetaElement (label, menutext, cb, sigc::mem_fun (*this, &MetaButton::activate_item))); + if (items.size () == 1) { + _menu.set_active (0); + set_text (label); + } +} + +bool +MetaButton::on_button_press_event (GdkEventButton* ev) +{ + MetaMenuItem const* current_active = dynamic_cast (_menu.get_active ()); + + if (ev->type == GDK_BUTTON_PRESS && ev->button == 3) { + Gtkmm2ext::anchored_menu_popup (&_menu, this, current_active ? current_active->menutext () : "", 3, ev->time); + } + + if (ev->type == GDK_BUTTON_PRESS && ev->button == 1) { + if (current_active) { + current_active->activate (); + } + } + + return true; +} + +void +MetaButton::activate_item (MetaMenuItem const* e) +{ + set_text (e->label ()); + e->activate (); +} + +void +MetaButton::set_active (std::string const& menulabel) +{ + guint c = 0; + bool found = false; + + for (auto& i : _menu.items ()) { + if (i.get_label () == menulabel) { + if (_menu.get_active () != &i) { + _menu.set_active (c); + } + set_text (dynamic_cast (&i)->label ()); + set_active_state (Gtkmm2ext::ExplicitActive); + _active = c; + found = true; + break; + } + ++c; + } + if (!found) { + set_active_state (Gtkmm2ext::Off); + } + StateChanged (); /* EMIT SIGNAL */ +} + +void +MetaButton::set_index (guint index) +{ + guint c = 0; + for (auto& i : _menu.items ()) { + if (c == index) { + _menu.set_active (c); + set_text (dynamic_cast (&i)->label ()); + break; + } + ++c; + } +} diff --git a/libs/widgets/widgets/metabutton.h b/libs/widgets/widgets/metabutton.h new file mode 100644 index 0000000000..62bf5a785a --- /dev/null +++ b/libs/widgets/widgets/metabutton.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2025 Robin Gareus + * + * 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. + */ + +#pragma once + +#include +#include + +#include "widgets/ardour_button.h" +#include "widgets/visibility.h" + +namespace ArdourWidgets { + +class LIBWIDGETS_API MetaButton : public ArdourButton +{ +public: + MetaButton (); + virtual ~MetaButton (); + + void add_item (std::string const& label, std::string const& menutext, sigc::slot const&); + void clear_items (); + + void set_active (std::string const&); + void set_index (guint); + + guint index () const + { + return _active; + } + +protected: + bool on_button_press_event (GdkEventButton*); + void menu_size_request (Gtk::Requisition*); + +private: + class MetaMenuItem : public Gtk::MenuItem + { + public: + MetaMenuItem (std::string const& label, std::string const& menutext, sigc::slot const& cb) + : Gtk::MenuItem (menutext, false) + , _label (label) + , _cb (cb) + { + } + + void activate () const + { + _cb (); + } + + std::string label () const + { + return _label; + } + + std::string menutext () const + { + return get_label (); + } + + private: + std::string _label; + sigc::slot _cb; + }; + + class MetaElement : public Gtk::Menu_Helpers::MenuElem + { + public: + typedef sigc::slot SlotActivate; + + MetaElement (std::string const& label, std::string const& menutext, sigc::slot const& cb, SlotActivate const& wrap) + : Gtk::Menu_Helpers::MenuElem ("") + { + MetaMenuItem* mmi = manage (new MetaMenuItem (label, menutext, cb)); + child_->unreference (); + set_child (mmi); + child_->signal_activate ().connect (sigc::bind (wrap, mmi)); + child_->show (); + } + }; + + void activate_item (MetaMenuItem const*); + + Gtk::Menu _menu; + guint _active; +}; + +} // namespace ArdourWidgets diff --git a/libs/widgets/wscript b/libs/widgets/wscript index 30811765d9..40ca165a61 100644 --- a/libs/widgets/wscript +++ b/libs/widgets/wscript @@ -33,6 +33,7 @@ widgets_sources = [ 'fastmeter.cc', 'frame.cc', 'focus_entry.cc', + 'metabutton.cc', 'pane.cc', 'paths_dialog.cc', 'popup.cc',