#97 simplify MultiScreen

src/jexer/backend/LogicalScreen.java

@@ -706,7 +706,7 @@ public class LogicalScreen implements Screen {
      *
      * @param width new screen width
      */
-    public final synchronized void setWidth(final int width) {
+    public synchronized void setWidth(final int width) {
         reallocate(width, this.height);
     }
 
@@ -716,7 +716,7 @@ public class LogicalScreen implements Screen {
      *
      * @param height new screen height
      */
-    public final synchronized void setHeight(final int height) {
+    public synchronized void setHeight(final int height) {
         reallocate(this.width, height);
     }
 
@@ -727,7 +727,7 @@ public class LogicalScreen implements Screen {
      * @param width new screen width
      * @param height new screen height
      */
-    public final void setDimensions(final int width, final int height) {
+    public void setDimensions(final int width, final int height) {
         reallocate(width, height);
         resizeToScreen();
     }
@@ -1035,7 +1035,7 @@ public class LogicalScreen implements Screen {
     /**
      * Clear the physical screen.
      */
-    public synchronized final void clearPhysical() {
+    public synchronized void clearPhysical() {
         for (int row = 0; row < height; row++) {
             for (int col = 0; col < width; col++) {
                 physical[col][row].unset();

src/jexer/backend/MultiBackend.java

@@ -111,7 +111,10 @@ public class MultiBackend implements Backend {
      * screen to the physical device.
      */
     public void flushScreen() {
-        for (Backend backend: backends) {
+        multiScreen.flushPhysical();
+        int n = backends.size();
+        for (int i = 0; i < n; i++) {
+            Backend backend = backends.get(Math.min(i, backends.size()));
             backend.flushScreen();
         }
     }