1 files changed, 106 insertions, 0 deletions
diff --git a/src/progs/ingenuity/BreadCrumbBox.cpp b/src/progs/ingenuity/BreadCrumbBox.cpp
new file mode 100644
index 00000000..d2bf7f97
--- /dev/null
+++ b/src/progs/ingenuity/BreadCrumbBox.cpp
@@ -0,0 +1,106 @@
+/* This file is part of Ingen.  Copyright (C) 2006 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 "BreadCrumbBox.h"
+#include "BreadCrumb.h"
+namespace Ingenuity {
+
+
+BreadCrumbBox::BreadCrumbBox()
+: Gtk::HBox()
+, _active_path("/")
+, _full_path("/")
+, _enable_signal(true)
+{
+}
+
+
+/** Destroys current breadcrumbs and rebuilds from scratch.
+ * 
+ * (Needs to be called when a patch is cleared to eliminate children crumbs)
+ */
+void
+BreadCrumbBox::build(Path path)
+{
+	bool old_enable_signal = _enable_signal;
+	_enable_signal = false;
+
+	// Moving to a parent path, just switch the active button
+	if (path.length() < _full_path.length() && _full_path.substr(0, path.length()) == path) {
+		
+		for (std::list<BreadCrumb*>::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i)
+			(*i)->set_active( ((*i)->path() == path) );
+	
+		_active_path = path;
+		_enable_signal = old_enable_signal;
+		return;
+	}
+
+	// Otherwise rebuild from scratch
+	_full_path = path;
+	_active_path = path;
+
+	// Empty existing breadcrumbs
+	for (std::list<BreadCrumb*>::iterator i = _breadcrumbs.begin(); i != _breadcrumbs.end(); ++i)
+		remove(**i);
+	_breadcrumbs.clear();
+
+	// Add root
+	BreadCrumb* but = manage(new BreadCrumb("/"));
+	but->signal_toggled().connect(sigc::bind(sigc::mem_fun(
+					this, &BreadCrumbBox::breadcrumb_clicked), but));
+	pack_start(*but, false, false, 1);
+	_breadcrumbs.push_front(but);
+	but->set_active(but->path() == _active_path);
+
+	// Add the others
+	while (path != "/") {
+		BreadCrumb* but = manage(new BreadCrumb(path));
+		but->signal_toggled().connect(sigc::bind(sigc::mem_fun(
+					this, &BreadCrumbBox::breadcrumb_clicked), but));
+		pack_start(*but, false, false, 1);
+		_breadcrumbs.push_front(but);
+		but->set_active(but->path() == _active_path);
+		path = path.parent();
+	}
+
+	show_all_children();
+
+	_enable_signal = old_enable_signal;
+}
+
+
+void
+BreadCrumbBox::breadcrumb_clicked(BreadCrumb* crumb)
+{
+	if (_enable_signal) {
+		_enable_signal = false;
+
+		if (!crumb->get_active()) {
+			assert(_active_path == crumb->path());
+			// Tried to turn off the current active button, bad user!
+			crumb->set_active(true);
+		} else {
+			signal_patch_selected.emit(crumb->path());
+			if (crumb->path() != _active_path)
+				crumb->set_active(false);
+		}
+		_enable_signal = true;
+	}
+}
+
+} // namespace Ingenuity
+