diff options
Diffstat (limited to 'src/gui/BreadCrumbs.hpp')
-rw-r--r-- | src/gui/BreadCrumbs.hpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/gui/BreadCrumbs.hpp b/src/gui/BreadCrumbs.hpp new file mode 100644 index 00000000..35c97fd0 --- /dev/null +++ b/src/gui/BreadCrumbs.hpp @@ -0,0 +1,119 @@ +/* + This file is part of Ingen. + Copyright 2007-2015 David Robillard <http://drobilla.net/> + + Ingen is free software: you can redistribute it and/or modify it under the + terms of the GNU Affero General Public License as published by the Free + Software Foundation, either version 3 of the License, or any later version. + + Ingen 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 Affero General Public License for details. + + You should have received a copy of the GNU Affero General Public License + along with Ingen. If not, see <http://www.gnu.org/licenses/>. +*/ + +#ifndef INGEN_GUI_BREADCRUMBS_HPP +#define INGEN_GUI_BREADCRUMBS_HPP + +#include <list> + +#include <gtkmm/box.h> +#include <gtkmm/label.h> +#include <gtkmm/togglebutton.h> + +#include "raul/Path.hpp" + +#include "ingen/client/GraphModel.hpp" +#include "ingen/types.hpp" + +#include "GraphView.hpp" + +namespace ingen { +namespace gui { + +/** Collection of breadcrumb buttons forming a path. + * This doubles as a cache for GraphViews. + * + * \ingroup GUI + */ +class BreadCrumbs : public Gtk::HBox +{ +public: + explicit BreadCrumbs(App& app); + + SPtr<GraphView> view(const Raul::Path& path); + + void build(Raul::Path path, SPtr<GraphView> view); + + sigc::signal<void, const Raul::Path&, SPtr<GraphView> > signal_graph_selected; + +private: + /** Breadcrumb button. + * + * Each Breadcrumb stores a reference to a GraphView for quick switching. + * So, the amount of allocated GraphViews at a given time is equal to the + * number of visible breadcrumbs (which is the perfect cache for GUI + * responsiveness balanced with mem consumption). + * + * \ingroup GUI + */ + class BreadCrumb : public Gtk::ToggleButton + { + public: + BreadCrumb(const Raul::Path& path, SPtr<GraphView> view = SPtr<GraphView>()) + : _path(path) + , _view(view) + { + assert(!view || view->graph()->path() == path); + set_border_width(0); + set_path(path); + set_can_focus(false); + show_all(); + } + + void set_view(SPtr<GraphView> view) { + assert(!view || view->graph()->path() == _path); + _view = view; + } + + const Raul::Path& path() const { return _path; } + SPtr<GraphView> view() const { return _view; } + + void set_path(const Raul::Path& path) { + remove(); + const char* text = (path.is_root()) ? "/" : path.symbol(); + Gtk::Label* lab = manage(new Gtk::Label(text)); + lab->set_padding(0, 0); + lab->show(); + add(*lab); + + if (_view && _view->graph()->path() != path) + _view.reset(); + } + + private: + Raul::Path _path; + SPtr<GraphView> _view; + }; + + BreadCrumb* create_crumb(const Raul::Path& path, + SPtr<GraphView> view = SPtr<GraphView>()); + + void breadcrumb_clicked(BreadCrumb* crumb); + + void message(const Message& msg); + void object_destroyed(const URI& uri); + void object_moved(const Raul::Path& old_path, const Raul::Path& new_path); + + Raul::Path _active_path; + Raul::Path _full_path; + bool _enable_signal; + std::list<BreadCrumb*> _breadcrumbs; +}; + +} // namespace gui +} // namespace ingen + +#endif // INGEN_GUI_BREADCRUMBS_HPP |