X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2FTWidget.java;fp=src%2Fjexer%2FTWidget.java;h=8a49c816ac1ceb8ab847cadeef41f25b3cc30d9f;hb=5d26b50423486b1e680e3adfc0054f6fd0bbcefe;hp=c9e0dedc2b652e60a308b5f7a7104d739fd7242c;hpb=656c0dddc7c0faddd62d373f22916107d322429e;p=fanfix.git

diff --git a/src/jexer/TWidget.java b/src/jexer/TWidget.java
index c9e0ded..8a49c81 100644
--- a/src/jexer/TWidget.java
+++ b/src/jexer/TWidget.java
@@ -204,6 +204,13 @@ public abstract class TWidget implements Comparable<TWidget> {
     protected TWidget(final TWidget parent, final boolean enabled,
         final int x, final int y, final int width, final int height) {
 
+        if (width < 0) {
+            throw new IllegalArgumentException("width cannot be negative");
+        }
+        if (height < 0) {
+            throw new IllegalArgumentException("height cannot be negative");
+        }
+
         this.enabled = enabled;
         this.parent = parent;
         this.window = parent.window;
@@ -234,6 +241,13 @@ public abstract class TWidget implements Comparable<TWidget> {
     protected final void setupForTWindow(final TWindow window,
         final int x, final int y, final int width, final int height) {
 
+        if (width < 0) {
+            throw new IllegalArgumentException("width cannot be negative");
+        }
+        if (height < 0) {
+            throw new IllegalArgumentException("height cannot be negative");
+        }
+
         this.parent = window;
         this.window = window;
         this.x      = x;