double buffer swing

[fanfix.git] / src / jexer / demos / DemoTextWindow.java

diff --git a/src/jexer/demos/DemoTextWindow.java b/src/jexer/demos/DemoTextWindow.java
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+++ b/src/jexer/demos/DemoTextWindow.java
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+/*
+ * Jexer - Java Text User Interface
+ *
+ * License: LGPLv3 or later
+ *
+ * This module is licensed under the GNU Lesser General Public License
+ * Version 3.  Please see the file "COPYING" in this directory for more
+ * information about the GNU Lesser General Public License Version 3.
+ *
+ *     Copyright (C) 2015  Kevin Lamonte
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see
+ * http://www.gnu.org/licenses/, or write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer.demos;
+
+import jexer.*;
+import jexer.event.*;
+import jexer.menu.*;
+
+/**
+ * This window demonstates the TText, THScroller, and TVScroller widgets.
+ */
+class DemoTextWindow extends TWindow {
+
+    /**
+     * Hang onto my TText so I can resize it with the window.
+     */
+    private TText textField;
+
+    /**
+     * Public constructor.
+     *
+     * @param parent the main application
+     */
+    public DemoTextWindow(final TApplication parent) {
+        super(parent, "Text Areas", 0, 0, 44, 20, RESIZABLE);
+
+        textField = addText(
+"This is an example of a reflowable text field.  Some example text follows.\n" +
+"\n" +
+"This library implements a text-based windowing system loosely\n" +
+"reminiscient of Borland's [Turbo\n" +
+"Vision](http://en.wikipedia.org/wiki/Turbo_Vision) library.  For those\n" +
+"wishing to use the actual C++ Turbo Vision library, see [Sergio\n" +
+"Sigala's updated version](http://tvision.sourceforge.net/) that runs\n" +
+"on many more platforms.\n" +
+"\n" +
+"Currently the only console platform supported is Posix (tested on\n" +
+"Linux).  Input/output is handled through terminal escape sequences\n" +
+"generated by the library itself: ncurses is not required or linked to. \n" +
+"xterm mouse tracking using UTF8 coordinates is supported.\n" +
+"\n" +
+"This library is licensed LGPL (\"GNU Lesser General Public License\")\n" +
+"version 3 or greater.  See the file COPYING for the full license text,\n" +
+"which includes both the GPL v3 and the LGPL supplemental terms.\n" +
+"\n",
+            1, 1, 40, 16);
+    }
+
+    /**
+     * Handle window/screen resize events.
+     *
+     * @param event resize event
+     */
+    @Override
+    public void onResize(final TResizeEvent event) {
+        if (event.getType() == TResizeEvent.Type.WIDGET) {
+            // Resize the text field
+            textField.setWidth(event.getWidth() - 4);
+            textField.setHeight(event.getHeight() - 4);
+            textField.reflow();
+            return;
+        }
+
+        // Pass to children instead
+        for (TWidget widget: getChildren()) {
+            widget.onResize(event);
+        }
+    }
+}
+