1 files changed, 57 insertions, 13 deletions

diff --git a/src/hdfsee.c b/src/hdfsee.c
index a4dec359..269f90a0 100644
--- a/src/hdfsee.c
+++ b/src/hdfsee.c
@@ -16,6 +16,7 @@
 
 #include <gtk/gtk.h>
 #include <glib/gthread.h>
+#include <getopt.h>
 
 #include "displaywindow.h"
 #include "utils.h"
@@ -26,6 +27,19 @@ DisplayWindow *main_window_list[64];
 size_t main_n_windows = 0;
 
 
+static void show_help(const char *s)
+{
+	printf("Syntax: %s [options] image.h5\n\n", s);
+	printf(
+"Quick HDF5 image viewer.\n"
+"\n"
+"  -h, --help                       Display this help message.\n"
+"\n"
+"  -p, --peak-overlay=<filename>    Draw circles in positions listed in file.\n"
+"\n");
+}
+
+
 /* Called to notify that an image display window has been closed */
 void hdfsee_window_closed(DisplayWindow *dw)
 {
@@ -54,31 +68,61 @@ void hdfsee_window_closed(DisplayWindow *dw)
 
 int main(int argc, char *argv[])
 {
+	int c;
+	size_t i;
+	int nfiles;
+	char *peaks = NULL;
+
+	/* Long options */
+	const struct option longopts[] = {
+		{"help",               0, NULL,               'h'},
+		{"peak-overlay",       1, NULL,               'p'},
+		{0, 0, NULL, 0}
+	};
+
 	g_thread_init(NULL);
 	gtk_init(&argc, &argv);
 
-	if ( argc == 1 ) {
+	/* Short options */
+	while ((c = getopt_long(argc, argv, "hp:", longopts, NULL)) != -1) {
 
-		main_n_windows = 1;
-		main_window_list[0] = displaywindow_open(NULL);
-		if ( main_window_list[0] == NULL ) {
-			ERROR("Couldn't open display window\n");
+		switch (c) {
+		case 'h' : {
+			show_help(argv[0]);
+			return 0;
 		}
 
-	} else {
+		case 'p' : {
+			peaks = strdup(optarg);
+			break;
+		}
 
-		size_t i;
+		case 0 : {
+			break;
+		}
 
-		main_n_windows = argc - 1;
-		for ( i=0; i<main_n_windows; i++ ) {
-			main_window_list[i] = displaywindow_open(argv[i+1]);
-			if ( main_window_list[i] == NULL ) {
-				ERROR("Couldn't open display window\n");
-			}
+		default : {
+			return 1;
+		}
 		}
 
 	}
 
+	nfiles = argc-optind;
+
+	if ( nfiles < 1 ) {
+		ERROR("You need to give me a file to open!\n");
+		return -1;
+	}
+
+	for ( i=0; i<nfiles; i++ ) {
+		main_window_list[i] = displaywindow_open(argv[optind+i], peaks);
+		if ( main_window_list[i] == NULL ) {
+			ERROR("Couldn't open display window\n");
+		} else {
+			main_n_windows++;
+		}
+	}
 	gtk_main();
 
 	return 0;