all: simplify datadir configuration

This simplifies the datadir configuration and removes the expectation,
that the code is executed from the repository. It should now be possible
to install this into the system like any other common Linux application.

3 files changed, 19 insertions, 13 deletions

diff --git a/src/curses-ui/curses-ui.vala b/src/curses-ui/curses-ui.vala
index 0cd6281..e98c6ea 100644
--- a/src/curses-ui/curses-ui.vala
+++ b/src/curses-ui/curses-ui.vala
@@ -23,7 +23,7 @@ public class CursesUI {
 	//StatusPanel statuswin;
 	MessageBoxOverlay mbOverlay;
 
-	public CursesUI(string binarylocation) {
+	public CursesUI(string datadir) {
 		/* unicode support */
 		Intl.setlocale(LocaleCategory.CTYPE, "");
 
@@ -40,7 +40,7 @@ public class CursesUI {
 		Curses.init_pair(2, Curses.Color.WHITE, Curses.Color.RED);
 
 		/* initialize widgets */
-		banner    = new Logo(binarylocation);
+		banner    = new Logo(datadir);
 		//statuswin = new StatusPanel();
 		messages  = new MessageBox();
 		clkwin    = new ClockWindow();
diff --git a/src/curses-ui/logo.vala b/src/curses-ui/logo.vala
index e7f6fb8..a4a2c2c 100644
--- a/src/curses-ui/logo.vala
+++ b/src/curses-ui/logo.vala
@@ -19,28 +19,28 @@ using Curses;
 public class Logo {
 	Window win;
 
-	public Logo(string binarylocation) {
+	public Logo(string datadir) {
 		win = new Window(8, COLS - 2, 0, 1);
 		win.bkgdset(COLOR_PAIR(1) | Attribute.BOLD);
 
 		win.addstr("\n");
 
-		var file = File.new_for_path (binarylocation + "/../../logo.txt");
-
-		if (!file.query_exists ()) {
+		var logofilename = Path.build_filename(datadir, "logo.txt");
+		var file = File.new_for_path(logofilename);
+		if (!file.query_exists()) {
 			stderr.printf (_("File '%s' doesn't exist.\n"), file.get_path ());
 		}
 
 		try {
 			// Open file for reading and wrap returned FileInputStream into a
 			// DataInputStream, so we can read line by line
-			var dis = new DataInputStream (file.read ());
+			var dis = new DataInputStream(file.read());
 			string line;
 			// Read lines until end of file (null) is reached
-			while ((line = dis.read_line (null)) != null) {
+			while ((line = dis.read_line(null)) != null) {
 				win.addstr(line+"\n");
 			}
-		} catch (Error e) {
+		} catch(Error e) {
 			error (_("Error: %s"), e.message);
 		}
 
diff --git a/src/curses-ui/main.vala b/src/curses-ui/main.vala
index e5ad4c8..3518bb2 100644
--- a/src/curses-ui/main.vala
+++ b/src/curses-ui/main.vala
@@ -19,6 +19,7 @@ public MainLoop loop;
 public AudioPlayer audio;
 public ScannerSession scanner;
 public CursesUI ui;
+private Config cfg;
 
 private static void play(string file) {
 	try {
@@ -56,14 +57,19 @@ public static int main(string[] args) {
 	try {
 		audio = Bus.get_proxy_sync(BusType.SYSTEM, "io.mainframe.shopsystem.AudioPlayer", "/io/mainframe/shopsystem/audio");
 		scanner = Bus.get_proxy_sync(BusType.SYSTEM, "io.mainframe.shopsystem.ScannerSession", "/io/mainframe/shopsystem/scanner_session");
+		cfg = Bus.get_proxy_sync(BusType.SYSTEM, "io.mainframe.shopsystem.Config", "/io/mainframe/shopsystem/config");
+
+		var datapath = cfg.get_string("GENERAL", "datapath");
+		var datadir = Path.build_filename(datapath, "curses-ui");
+		ui = new CursesUI(datadir);
 	} catch(IOError e) {
 		error(_("IO Error: %s\n"), e.message);
+	} catch(DBusError e) {
+		error(_("DBus Error: %s\n"), e.message);
+	} catch(KeyFileError e) {
+		error(_("KeyFile Error: %s\n"), e.message);
 	}
 
-	string binarylocation = File.new_for_path(args[0]).get_parent().get_path();
-
-	ui = new CursesUI(binarylocation);
-
 	Log.set_default_handler(log_handler);
 
 	scanner.msg.connect(msg_handler);