From 563b05331db465e0e5ef0434de79e2cc06674d63 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@bitwiz.org.uk>
Date: Sun, 20 Dec 2009 20:13:00 +0100
Subject: Show values of simple fields in menu

---
 src/displaywindow.c | 20 ++++++++++++++-
 src/hdf5-file.c     | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/hdf5-file.h     |  2 ++
 3 files changed, 92 insertions(+), 1 deletion(-)

diff --git a/src/displaywindow.c b/src/displaywindow.c
index 8c1d0b01..ffcce983 100644
--- a/src/displaywindow.c
+++ b/src/displaywindow.c
@@ -692,12 +692,28 @@ static GtkWidget *displaywindow_addhdfgroup(struct hdfile *hdfile,
 
 		} else {
 
+			char *tmp;
+
 			item = gtk_menu_item_new_with_label(names[i]);
 
+			tmp = hdfile_get_string_value(hdfile, names[i]);
+			if ( tmp != NULL ) {
+
+				GtkWidget *ss;
+				GtkWidget *mss;
+
+				mss = gtk_menu_new();
+				ss = gtk_menu_item_new_with_label(tmp);
+				gtk_menu_shell_append(GTK_MENU_SHELL(mss), ss);
+				gtk_menu_item_set_submenu(GTK_MENU_ITEM(item),
+				                          mss);
+
+			}
+
+
 		}
 
 		gtk_menu_shell_append(GTK_MENU_SHELL(ms), item);
-		gtk_widget_show(item);
 
 		free(names[i]);
 
@@ -739,6 +755,8 @@ static void displaywindow_update_menus(DisplayWindow *dw)
 	/* Make new menu be the submenu for File->Images */
 	w = gtk_ui_manager_get_widget(dw->ui, "/ui/displaywindow/file/images");
 	gtk_menu_item_set_submenu(GTK_MENU_ITEM(w), ms);
+
+	gtk_widget_show_all(ms);
 }
 
 
diff --git a/src/hdf5-file.c b/src/hdf5-file.c
index 9368ca0e..c1f4f70e 100644
--- a/src/hdf5-file.c
+++ b/src/hdf5-file.c
@@ -273,6 +273,77 @@ static int looks_like_image(hid_t h)
 }
 
 
+char *hdfile_get_string_value(struct hdfile *f, const char *name)
+{
+	hid_t dh;
+	hid_t sh;
+	hsize_t size;
+	hsize_t max_size;
+	hid_t type;
+	hid_t class;
+
+	dh = H5Dopen(f->fh, name, H5P_DEFAULT);
+	if ( dh < 0 ) {
+		return NULL;
+	}
+
+	sh = H5Dget_space(dh);
+	if ( H5Sget_simple_extent_ndims(sh) != 1 ) {
+		return NULL;
+	}
+
+	H5Sget_simple_extent_dims(sh, &size, &max_size);
+	if ( size != 1 ) {
+		H5Dclose(dh);
+		return NULL;
+	}
+
+	type = H5Dget_type(dh);
+	class = H5Tget_class(type);
+	switch ( class ) {
+	case H5T_FLOAT : {
+
+		herr_t r;
+		double buf;
+		char *tmp;
+
+		r = H5Dread(dh, H5T_NATIVE_DOUBLE, H5S_ALL, H5S_ALL,
+		            H5P_DEFAULT, &buf);
+		if ( r < 0 ) goto fail;
+
+		tmp = malloc(256);
+		snprintf(tmp, 255, "%f", buf);
+
+		return tmp;
+
+	}
+	case H5T_INTEGER : {
+
+		herr_t r;
+		int buf;
+		char *tmp;
+
+		r = H5Dread(dh, H5T_NATIVE_INT, H5S_ALL, H5S_ALL,
+		            H5P_DEFAULT, &buf);
+		if ( r < 0 ) goto fail;
+
+		tmp = malloc(256);
+		snprintf(tmp, 255, "%d", buf);
+
+		return tmp;
+	}
+	default : {
+		goto fail;
+	}
+	}
+
+fail:
+	H5Tclose(type);
+	H5Dclose(dh);
+	return NULL;
+}
+
+
 char **hdfile_read_group(struct hdfile *f, int *n, const char *parent,
                         int **p_is_group, int **p_is_image)
 {
diff --git a/src/hdf5-file.h b/src/hdf5-file.h
index 0d1dbc48..a212f677 100644
--- a/src/hdf5-file.h
+++ b/src/hdf5-file.h
@@ -41,4 +41,6 @@ extern char **hdfile_read_group(struct hdfile *f, int *n, const char *parent,
 extern int hdfile_set_first_image(struct hdfile *f, const char *group);
 extern void hdfile_close(struct hdfile *f);
 
+extern char *hdfile_get_string_value(struct hdfile *f, const char *name);
+
 #endif	/* HDF5_H */
-- 
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