From c94457731f1fbddbb3e659a3682f705b260b249f Mon Sep 17 00:00:00 2001 From: David Robillard Date: Wed, 3 Jun 2009 01:44:57 +0000 Subject: BreadCrumbBox => BreadCrumbs. git-svn-id: http://svn.drobilla.net/lad/trunk/ingen@2072 a436a847-0d15-0410-975c-d299462d15a1 --- src/gui/BreadCrumbs.cpp | 213 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) create mode 100644 src/gui/BreadCrumbs.cpp (limited to 'src/gui/BreadCrumbs.cpp') diff --git a/src/gui/BreadCrumbs.cpp b/src/gui/BreadCrumbs.cpp new file mode 100644 index 00000000..8e9dd629 --- /dev/null +++ b/src/gui/BreadCrumbs.cpp @@ -0,0 +1,213 @@ +/* This file is part of Ingen. + * Copyright (C) 2007-2009 Dave Robillard + * + * Ingen 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. + * + * 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 General Public License for 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 St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "BreadCrumbs.hpp" +#include "BreadCrumb.hpp" +#include "App.hpp" +#include "client/SigClientInterface.hpp" + +namespace Ingen { +namespace GUI { + +using namespace std; +using namespace Raul; + +BreadCrumbBox::BreadCrumbBox() + : Gtk::HBox() + , _active_path("/") + , _full_path("/") + , _enable_signal(true) +{ + App::instance().client()->signal_object_deleted.connect( + sigc::mem_fun(this, &BreadCrumbBox::object_destroyed)); +} + + +SharedPtr +BreadCrumbBox::view(const Path& path) +{ + for (std::list::const_iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) + if ((*i)->path() == path) + return (*i)->view(); + + return SharedPtr(); +} + + +/** Sets up the crumbs to display @a path. + * + * If @a path is already part of the shown path, it will be selected and the + * children preserved. + */ +void +BreadCrumbBox::build(Path path, SharedPtr view) +{ + bool old_enable_signal = _enable_signal; + _enable_signal = false; + + // Moving to a path we already contain, just switch the active button + if (_breadcrumbs.size() > 0 && (path.is_parent_of(_full_path) || path == _full_path)) { + + for (std::list::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) { + if ((*i)->path() == path) { + (*i)->set_active(true); + if (!(*i)->view()) + (*i)->set_view(view); + + // views are expensive, having two around for the same patch is a bug + assert((*i)->view() == view); + + } else { + (*i)->set_active(false); + } + } + + _active_path = path; + _enable_signal = old_enable_signal; + + + // Moving to a child of the full path, just append crumbs (preserve view cache) + } else if (_breadcrumbs.size() > 0 && (path.is_child_of(_full_path))) { + + string suffix = path.substr(_full_path.length()); + while (suffix.length() > 0) { + if (suffix[0] == '/') + suffix = suffix.substr(1); + const string name = suffix.substr(0, suffix.find("/")); + _full_path = _full_path.base() + name; + BreadCrumb* but = create_crumb(_full_path, view); + pack_start(*but, false, false, 1); + _breadcrumbs.push_back(but); + but->show(); + if (suffix.find("/") == string::npos) + break; + else + suffix = suffix.substr(suffix.find("/")+1); + } + + for (std::list::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) + (*i)->set_active(false); + _breadcrumbs.back()->set_active(true); + + + // Rebuild from scratch + // Getting here is bad unless absolutely necessary, since the PatchView cache is lost + } else { + + _full_path = path; + _active_path = path; + + // Empty existing breadcrumbs + for (std::list::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) + remove(**i); + _breadcrumbs.clear(); + + // Add root + BreadCrumb* root_but = create_crumb("/", view); + pack_start(*root_but, false, false, 1); + _breadcrumbs.push_front(root_but); + root_but->set_active(root_but->path() == _active_path); + + Path working_path = "/"; + string suffix = path.chop_scheme().substr(1); + while (suffix.length() > 0) { + if (suffix[0] == '/') + suffix = suffix.substr(1); + const string name = suffix.substr(0, suffix.find("/")); + working_path = working_path.base() + name; + BreadCrumb* but = create_crumb(working_path, view); + pack_start(*but, false, false, 1); + _breadcrumbs.push_back(but); + but->set_active(working_path == _active_path); + but->show(); + if (suffix.find("/") == string::npos) + break; + else + suffix = suffix.substr(suffix.find("/")+1); + } + } + + _enable_signal = old_enable_signal; +} + + +/** Create a new crumb, assigning it a reference to @a view if their paths + * match, otherwise ignoring @a view. + */ +BreadCrumb* +BreadCrumbBox::create_crumb(const Path& path, + SharedPtr view) +{ + BreadCrumb* but = manage(new BreadCrumb(path, + (view && path == view->patch()->path()) ? view : SharedPtr())); + + but->signal_toggled().connect(sigc::bind(sigc::mem_fun( + this, &BreadCrumbBox::breadcrumb_clicked), but)); + + return but; +} + + +void +BreadCrumbBox::breadcrumb_clicked(BreadCrumb* crumb) +{ + if (_enable_signal) { + _enable_signal = false; + + if (!crumb->get_active()) { + // Tried to turn off the current active button, bad user, no cookie + crumb->set_active(true); + } else { + signal_patch_selected.emit(crumb->path(), crumb->view()); + if (crumb->path() != _active_path) + crumb->set_active(false); + } + _enable_signal = true; + } +} + + +void +BreadCrumbBox::object_destroyed(const Path& path) +{ + for (std::list::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) { + if ((*i)->path() == path) { + // Remove all crumbs after the removed one (inclusive) + for (std::list::iterator j = i; j != _breadcrumbs.end(); ) { + BreadCrumb* bc = *j; + j = _breadcrumbs.erase(j); + remove(*bc); + } + break; + } + } +} + + +void +BreadCrumbBox::object_moved(const Path& old_path, const Path& new_path) +{ + for (std::list::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i) { + if ((*i)->path() == old_path) + (*i)->set_path(new_path); + } +} + + +} // namespace GUI +} // namespace Ingen + -- cgit v1.2.1