[gcalctool] Allow whitespace to be entered

[Robert Ancell <rancell src gnome org>]

commit ce85bb6f3b57c8f8f2e456c242bc4ef8c7cce0c3
Author: Robert Ancell <robert ancell gmail com>
Date:   Mon Jul 27 11:03:05 2009 +1000

    Allow whitespace to be entered

 src/functions.c |    1 +
 src/functions.h |    1 +
 src/gtk.c       |    6 ++++++
 3 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/functions.c b/src/functions.c
index ba66354..307d20b 100644
--- a/src/functions.c
+++ b/src/functions.c
@@ -51,6 +51,7 @@ typedef struct {
 /* Note that none of these strings can be translated as the parser expects them to be correct */
 /* id, symname flags */
 static Function functions[NFUNCTIONS] = {
+{ FN_SPACE,             " ", 0},
 { FN_0,                 "0", NUMBER },
 { FN_1,                 "1", NUMBER },
 { FN_2,                 "2", NUMBER },    
diff --git a/src/functions.h b/src/functions.h
index 4713531..ff3290c 100644
--- a/src/functions.h
+++ b/src/functions.h
@@ -26,6 +26,7 @@
 /* Available functions */
 enum
 {
+    FN_SPACE,
     FN_0, FN_1, FN_2, FN_3,
     FN_4, FN_5, FN_6, FN_7,
     FN_8, FN_9, FN_A, FN_B,
diff --git a/src/gtk.c b/src/gtk.c
index 1c971fd..3fe391c 100644
--- a/src/gtk.c
+++ b/src/gtk.c
@@ -2134,6 +2134,12 @@ main_window_key_press_cb(GtkWidget *widget, GdkEventKey *event)
         }
     }
     
+    /* Whitespace */
+    if (event->keyval == GDK_space && state == 0) {
+        do_button(FN_SPACE, 0);
+        return TRUE;
+    }
+    
     /* Delete in display */
     if (event->keyval == GDK_Delete && state == 0 && (event->state & GDK_SHIFT_MASK) == 0) {
         do_button(FN_DELETE, 0);