From 6600093d06fc302a13ffdde193dbe4b8da151d9c Mon Sep 17 00:00:00 2001
From: Don Pellegrino <don@drexel.edu>
Date: Thu, 18 Jun 2009 21:14:45 +0000
Subject: Implemented zooming.

---
diff --git a/src/controller/keyboard.c b/src/controller/keyboard.c
index 333e2d4..6b70af2 100644
--- a/src/controller/keyboard.c
+++ b/src/controller/keyboard.c
@@ -1,7 +1,9 @@
 #include "keyboard.h"
 #include "clear_selection.h"
 #include "selection_from_db.h"
+#include "exp004reshape.h"
 #include "../view/exp004state0.h"
+#include <GL/glut.h>
 
 #define S exp004state0
 
@@ -26,14 +28,27 @@ keyboard (unsigned char key, int x, int y)
       selection_from_db ();
       break;
 
+    case 'r':
+      /*
+       * Reset the view (unzoom).
+       */
+      S.zoom.active = false;
+      exp004reshape (S.viewport.w, S.viewport.h);		     
+      glutPostRedisplay ();
+      break;
+
+    case 's':
+      /*
+       * Selection will be used to define a set.
+       */
+      S.selection.purpose = SET;
+      break;
+
     case 'z':
       /*
-       * Toggle zoom mode on and off.
+       * Selection will be use to zoom.
        */
-      if (S.zoom)
-	S.zoom = false;
-      else
-	S.zoom = true;
+      S.selection.purpose = ZOOM;
       break;
     }
 
--
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