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[nikiroo-utils.git] / src / jexer / TApplication.java

diff --git a/src/jexer/TApplication.java b/src/jexer/TApplication.java
index 3907a9d15bda19c2bb636a0fe79e165012eb3f3b..8b436ab9a99ec9219b9755ffce379c62d834e10f 100644 (file)
--- a/src/jexer/TApplication.java
+++ b/src/jexer/TApplication.java
@@ -51,16 +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 {
 
@@ -403,7 +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();
+        }
     }
 
     /**
@@ -569,7 +580,7 @@ public class TApplication implements Runnable {
     }
 
     /**
-     * Get the list of windows.
+     * Get a (shallow) copy of the window list.
      *
      * @return a copy of the list of windows for this application
      */
@@ -717,6 +728,7 @@ public class TApplication implements Runnable {
      */
     public TApplication(final Backend backend) {
         this.backend = backend;
+        backend.setListener(this);
         TApplicationImpl();
     }
 
@@ -908,6 +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.
      */
@@ -1052,19 +1071,6 @@ public class TApplication implements Runnable {
             return;
         }
 
-        // Peek at the mouse position
-        if (event instanceof TMouseEvent) {
-            TMouseEvent mouse = (TMouseEvent) event;
-            synchronized (getScreen()) {
-                if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) {
-                    oldMouseX = mouseX;
-                    oldMouseY = mouseY;
-                    mouseX = mouse.getX();
-                    mouseY = mouse.getY();
-                }
-            }
-        }
-
         // Put into the main queue
         drainEventQueue.add(event);
     }
@@ -1087,6 +1093,14 @@ public class TApplication implements Runnable {
 
         // Peek at the mouse position
         if (event instanceof TMouseEvent) {
+            TMouseEvent mouse = (TMouseEvent) event;
+            if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) {
+                oldMouseX = mouseX;
+                oldMouseY = mouseY;
+                mouseX = mouse.getX();
+                mouseY = mouse.getY();
+            }
+
             // See if we need to switch focus to another window or the menu
             checkSwitchFocus((TMouseEvent) event);
         }
@@ -1222,6 +1236,17 @@ public class TApplication implements Runnable {
      * @see #primaryHandleEvent(TInputEvent event)
      */
     private void secondaryHandleEvent(final TInputEvent event) {
+        // Peek at the mouse position
+        if (event instanceof TMouseEvent) {
+            TMouseEvent mouse = (TMouseEvent) event;
+            if ((mouseX != mouse.getX()) || (mouseY != mouse.getY())) {
+                oldMouseX = mouseX;
+                oldMouseY = mouseY;
+                mouseX = mouse.getX();
+                mouseY = mouse.getY();
+            }
+        }
+
         secondaryEventReceiver.handleEvent(event);
     }
 
@@ -2068,6 +2093,53 @@ public class TApplication implements Runnable {
         }
     }
 
+    /**
+     * Get a (shallow) copy of the menu list.
+     *
+     * @return a copy of the menu list
+     */
+    public final List<TMenu> getAllMenus() {
+        return new LinkedList<TMenu>(menus);
+    }
+
+    /**
+     * Add a top-level menu to the list.
+     *
+     * @param menu the menu to add
+     * @throws IllegalArgumentException if the menu is already used in
+     * another TApplication
+     */
+    public final void addMenu(final TMenu menu) {
+        if ((menu.getApplication() != null)
+            && (menu.getApplication() != this)
+        ) {
+            throw new IllegalArgumentException("Menu " + menu + " is already " +
+                "part of application " + menu.getApplication());
+        }
+        closeMenu();
+        menus.add(menu);
+        recomputeMenuX();
+    }
+
+    /**
+     * Remove a top-level menu from the list.
+     *
+     * @param menu the menu to remove
+     * @throws IllegalArgumentException if the menu is already used in
+     * another TApplication
+     */
+    public final void removeMenu(final TMenu menu) {
+        if ((menu.getApplication() != null)
+            && (menu.getApplication() != this)
+        ) {
+            throw new IllegalArgumentException("Menu " + menu + " is already " +
+                "part of application " + menu.getApplication());
+        }
+        closeMenu();
+        menus.remove(menu);
+        recomputeMenuX();
+    }
+
     /**
      * Turn off a sub-menu.
      */