TWindowBackend

[fanfix.git] / src / jexer / TApplication.java

diff --git a/src/jexer/TApplication.java b/src/jexer/TApplication.java
index c32614914334ee7002d429c50df35aa98a7b9033..ab9c1962f6334094a03c6342eaad21eee6a03e8e 100644 (file)
--- a/src/jexer/TApplication.java
+++ b/src/jexer/TApplication.java
@@ -44,7 +44,6 @@ import java.util.Map;
 
 import jexer.bits.CellAttributes;
 import jexer.bits.ColorTheme;
-import jexer.bits.GraphicsChars;
 import jexer.event.TCommandEvent;
 import jexer.event.TInputEvent;
 import jexer.event.TKeypressEvent;
@@ -52,16 +51,19 @@ import jexer.event.TMenuEvent;
 import jexer.event.TMouseEvent;
 import jexer.event.TResizeEvent;
 import jexer.backend.Backend;
+import jexer.backend.Screen;
 import jexer.backend.SwingBackend;
 import jexer.backend.ECMA48Backend;
-import jexer.io.Screen;
+import jexer.backend.TWindowBackend;
 import jexer.menu.TMenu;
 import jexer.menu.TMenuItem;
 import static jexer.TCommand.*;
 import static jexer.TKeypress.*;
 
 /**
- * TApplication sets up a full Text User Interface application.
+ * TApplication is the main driver class for a full Text User Interface
+ * application.  It manages windows, provides a menu bar and status bar, and
+ * processes events received from the user.
  */
 public class TApplication implements Runnable {
 
@@ -404,7 +406,15 @@ public class TApplication implements Runnable {
      * @return the Screen
      */
     public final Screen getScreen() {
-        return backend.getScreen();
+        if (backend instanceof TWindowBackend) {
+            // We are being rendered to a TWindow.  We can't use its
+            // getScreen() method because that is how it is rendering to a
+            // hardware backend somewhere.  Instead use its getOtherScreen()
+            // method.
+            return ((TWindowBackend) backend).getOtherScreen();
+        } else {
+            return backend.getScreen();
+        }
     }
 
     /**
@@ -636,6 +646,12 @@ public class TApplication implements Runnable {
 
         switch (backendType) {
         case SWING:
+            // The default SwingBackend is 80x25, 20 pt font.  If you want to
+            // change that, you can pass the extra arguments to the
+            // SwingBackend constructor here.  For example, if you wanted
+            // 90x30, 16 pt font:
+            //
+            // backend = new SwingBackend(this, 90, 30, 16);
             backend = new SwingBackend(this);
             break;
         case XTERM:
@@ -712,6 +728,7 @@ public class TApplication implements Runnable {
      */
     public TApplication(final Backend backend) {
         this.backend = backend;
+        backend.setListener(this);
         TApplicationImpl();
     }
 
@@ -903,6 +920,13 @@ public class TApplication implements Runnable {
     // Main loop --------------------------------------------------------------
     // ------------------------------------------------------------------------
 
+    /**
+     * Force this application to exit.
+     */
+    public void exit() {
+        quit = true;
+    }
+
     /**
      * Run this application until it exits.
      */