gui: Move ocarina6.glade to share/ocarina/

This directory will be copied directly into /usr/ during an install.

Signed-off-by: Anna Schumaker <schumaker.anna@gmail.com>

.gitignore

@@ -3,6 +3,6 @@
 *.run
 *.test
 *.glade~
-gui/#*
+share/ocarina/#*
 bin/
 .sconsign.dblite

gui/main.cpp

@@ -7,6 +7,23 @@
 #include <playlist.h>
 #include <tabs.h>
 
+const std::string share_file(const std::string &file)
+{
+	char buf[1024];
+	std::string res;
+	ssize_t len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
+
+	if (len == -1)
+		return "";
+
+	buf[len] = '\0';
+	res = std::string(buf);
+
+	// len("bin/ocarina") == 11
+	res = res.substr(0, res.size() - 11);
+	return res + "share/ocarina/" + file;
+}
+
 Gtk::Window *ocarina_init(int *argc, char ***argv)
 {
 	Gtk::Window *window = connect_wires();
@@ -15,6 +32,7 @@ Gtk::Window *ocarina_init(int *argc, char ***argv)
 	library::init();
 	playlist::init();
 
+	share_file("ocarina6.glade");
 	post_init_tabs();
 	return window;
 }

gui/wires.cpp

@@ -242,7 +242,7 @@ Gtk::Window *connect_wires()
 	struct Callbacks *cb = get_callbacks();
 
 	builder = Gtk::Builder::create();
-	builder->add_from_file("gui/ocarina6.glade");
+	builder->add_from_file(share_file("ocarina6.glade"));
 
 
 	/* Controls */

include/ocarina.h

@@ -13,6 +13,7 @@ void collection_mgr_init();
 
 
 /* main.cpp */
+const std::string share_file(const std::string &);
 Gtk::Window *ocarina_init(int *, char ***);