minor error-checking changes

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/joglutils/trunk@56 83d24430-9974-4f80-8418-2cc3294053b9

1 files changed, 9 insertions, 2 deletions

diff --git a/src/net/java/joglutils/jogltext/FontDrawer.java b/src/net/java/joglutils/jogltext/FontDrawer.java
index 1bf148b..faaac43 100644
--- a/src/net/java/joglutils/jogltext/FontDrawer.java
+++ b/src/net/java/joglutils/jogltext/FontDrawer.java
@@ -62,9 +62,13 @@ public class FontDrawer {
     

     /**

      * Intstantiates a new FontDrawer initially rendering in the specified font. 

+     * 

      * @param font the initial font for this FontDrawer

+     * @throws java.lang.NullPointerException if the supplied font is null

      */

-    public FontDrawer(Font font) {

+    public FontDrawer(Font font) throws NullPointerException {

+        if (font == null)

+            throw new NullPointerException("Can't use a null font to create a FontDrawer");

         this.font = font;

         depth = 0;

         edgeOnly = false;

@@ -74,8 +78,11 @@ public class FontDrawer {
     /**

      * Specifies which font to render with this FontDrawer

      * @param font a font to use for rendering

+     ** @throws java.lang.NullPointerException if the supplied font is null

      */

-    public void setFont(Font font) {

+    public void setFont(Font font) throws NullPointerException {

+        if (font == null)

+            throw new NullPointerException("Can't set a FontDrawer font to null");

         this.font = font;

     }