cfdisk: add help screen

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/fdisks/cfdisk.c b/fdisks/cfdisk.c
index 0b14beb263516dbc47b42bd4f6890d33ea9a5767..beb5d1b995a3309c4fcff205123314482035c7f3 100644 (file)
--- a/fdisks/cfdisk.c
+++ b/fdisks/cfdisk.c
@@ -111,12 +111,12 @@ struct cfdisk_menu {
 static struct cfdisk_menudesc main_menudesc[] = {
        { 'b', N_("Bootable"), N_("Toggle bootable flag of the current partition") },
        { 'd', N_("Delete"), N_("Delete the current partition") },
-//     { 'h', N_("Help"), N_("Print help screen") },
 //     { 'm', N_("Maximize"), N_("Maximize disk usage of the current partition (experts only)") },
        { 'n', N_("New"), N_("Create new partition from free space") },
 //     { 'p', N_("Print"), N_("Print partition table to the screen or to a file") },
        { 'q', N_("Quit"), N_("Quit program without writing partition table") },
        { 't', N_("Type"), N_("Change the partition type") },
+       { 'h', N_("Help"), N_("Print help screen") },
        { 'W', N_("Write"), N_("Write partition table to disk (this might destroy data)") },
        { 0, NULL, NULL }
 };
@@ -1369,6 +1369,54 @@ done:
        return rc;
 }
 
+static int ui_help(void)
+{
+       size_t i;
+
+       static const char *help[] = {
+               N_("Help Screen for cfdisk"),
+               "",
+               N_("This is cfdisk, a curses based disk partitioning program, which"),
+               N_("allows you to create, delete and modify partitions on your hard"),
+               N_("disk drive."),
+               "",
+               N_("Copyright (C) 2014 Karel Zak <kzak@redhat.com> "),
+               N_("Based on the original cfdisk from Kevin E. Martin & aeb."),
+               "",
+               N_("Command      Meaning"),
+               N_("-------      -------"),
+               N_("  b          Toggle bootable flag of the current partition"),
+               N_("  d          Delete the current partition"),
+               N_("  h          Print this screen"),
+               N_("  n          Create new partition from free space"),
+               N_("  q          Quit program without writing partition table"),
+               N_("  t          Change the partition type"),
+               N_("  W          Write partition table to disk (must enter upper case W)"),
+               N_("             Since this might destroy data on the disk, you must"),
+               N_("             either confirm or deny the write by entering `yes' or"),
+               N_("             `no'"),
+               N_("Up Arrow     Move cursor to the previous partition"),
+               N_("Down Arrow   Move cursor to the next partition"),
+               N_("Left Arrow   Move cursor to the previous menu item"),
+               N_("Right Arrow  Move cursor to the next menu item"),
+
+               "",
+               N_("Note: All of the commands can be entered with either upper or lower"),
+               N_("case letters (except for Writes)."),
+               "",
+               N_("Use lsblk(8) or partx(8) to see more details about the device.")
+       };
+
+       erase();
+
+       for (i = 0; i < ARRAY_SIZE(help); i++)
+               mvaddstr(i, 1, _(help[i]));
+
+       ui_info(_("Press a key to continue."));
+       getch();
+       return 0;
+}
+
 /* TODO: use @sz, now 128bytes */
 static int main_menu_ignore_keys(struct cfdisk *cf, char *ignore,
                size_t sz __attribute__((__unused__)))
@@ -1444,6 +1492,10 @@ static int main_menu_action(struct cfdisk *cf, int key)
                        info = _("Partition %zu has been deleted.");
                ref = 1;
                break;
+       case 'h': /* help */
+               ui_help();
+               ref = 1;
+               break;
        case 'n': /* New */
        {
                uint64_t start, size, dflt_size;
@@ -1520,7 +1572,6 @@ static int main_menu_action(struct cfdisk *cf, int key)
        return 0;
 }
 
-
 static int ui_run(struct cfdisk *cf)
 {
        int rc = 0;