X-Git-Url: http://www2.svjatoslav.eu/gitweb/?p=sixth-3d.git;a=blobdiff_plain;f=src%2Fmain%2Fjava%2Feu%2Fsvjatoslav%2Fsixth%2Fe3d%2Fgui%2Fhumaninput%2FUserInputHandler.java;h=7ccdc1f379cddb26fb05929f3e9c83266fbf18f5;hp=21fd6673b1b5b0e74b66c2bc7b46174ef2d0e300;hb=59baa428fb2d9e7f0fe5423f4cea47f2d6245914;hpb=8bceefbdb7316557ee77902cc6ac216f5c1ff160

diff --git a/src/main/java/eu/svjatoslav/sixth/e3d/gui/humaninput/UserInputHandler.java b/src/main/java/eu/svjatoslav/sixth/e3d/gui/humaninput/UserInputHandler.java
index 21fd667..7ccdc1f 100644
--- a/src/main/java/eu/svjatoslav/sixth/e3d/gui/humaninput/UserInputHandler.java
+++ b/src/main/java/eu/svjatoslav/sixth/e3d/gui/humaninput/UserInputHandler.java
@@ -1,5 +1,5 @@
 /*
- * Sixth 3D engine. Copyright ©2012-2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
+ * Sixth 3D engine. Copyright ©2012-2019, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 3 of the GNU Lesser General Public License
@@ -16,12 +16,24 @@ import java.awt.event.KeyEvent;
 
 public interface UserInputHandler extends ViewRenderListener {
 
-    void focusLost(ViewPanel viewPanel);
-
-    void focusReceived(ViewPanel viewPanel);
-
-    void keyPressed(KeyEvent event, ViewPanel viewPanel);
-
-    void keyReleased(KeyEvent event, ViewPanel viewPanel);
+    /**
+     * @return <code>true</code> if view update is needed.
+     */
+    boolean focusLost(ViewPanel viewPanel);
+
+    /**
+     * @return <code>true</code> if view update is needed.
+     */
+    boolean focusReceived(ViewPanel viewPanel);
+
+    /**
+     * @return <code>true</code> if view update is needed.
+     */
+    boolean keyPressed(KeyEvent event, ViewPanel viewPanel);
+
+    /**
+     * @return <code>true</code> if view update is needed.
+     */
+    boolean keyReleased(KeyEvent event, ViewPanel viewPanel);
 
 }