Added gjt to CVS

1 files changed, 45 insertions, 0 deletions

diff --git a/java/gjt/StateButton.java b/java/gjt/StateButton.java
new file mode 100644
index 00000000000..6de20a76f98
--- /dev/null
+++ b/java/gjt/StateButton.java
@@ -0,0 +1,45 @@
+package gjt;
+
+import java.awt.Image;
+
+/**
+ * An ImageButton that cycles through a series of images.  The 
+ * image advances to the next image in the series every time 
+ * the button is activated.<p>
+ *
+ * Note that the cycling is actually performed by the buttons' 
+ * controller - a StateButtonController.<p>
+ *
+ * @version 1.0, Apr 1 1996
+ * @author  David Geary
+ * @see     ImageButton
+ * @see     StateButtonController
+ * @see     gjt.test.StateButtonTest
+ */
+public class StateButton extends ImageButton {
+    private Image[] images;
+    private int     state = 0;
+    private int     numStates;
+
+    public StateButton(Image[] images) {
+        super(images[0]);
+
+        this.images = images;
+        numStates   = images.length;
+        setController(new StateButtonController(this));
+        waitForImages();
+    }
+    public Image nextImage() {
+        if(state + 1 < numStates) state++;
+        else                      state = 0;
+
+        return images[state];
+    }
+    public int state() {
+        return state;
+    }
+    private void waitForImages() {
+        for(int i=0; i < images.length; ++i)
+            Util.waitForImage(this, images[i]);
+    }
+}