src/jexer/demos/Demo6.java

   1 /*
   2  * Jexer - Java Text User Interface
   3  *
   4  * The MIT License (MIT)
   5  *
   6  * Copyright (C) 2019 Kevin Lamonte
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24  * DEALINGS IN THE SOFTWARE.
  25  *
  26  * @author Kevin Lamonte [kevin.lamonte@gmail.com]
  27  * @version 1
  28  */
  29 package jexer.demos;
  30
  31 import java.util.ResourceBundle;
  32
  33 import jexer.TApplication;
  34 import jexer.backend.*;
  35 import jexer.demos.DemoApplication;
  36
  37 /**
  38  * This class shows off the use of MultiBackend and MultiScreen.
  39  */
  40 public class Demo6 {
  41
  42     /**
  43      * Translated strings.
  44      */
  45     private static final ResourceBundle i18n = ResourceBundle.getBundle(Demo6.class.getName());
  46
  47     // ------------------------------------------------------------------------
  48     // Demo6 ------------------------------------------------------------------
  49     // ------------------------------------------------------------------------
  50
  51     /**
  52      * Main entry point.
  53      *
  54      * @param args Command line arguments
  55      */
  56     public static void main(final String [] args) {
  57         try {
  58
  59             /*
  60              * In this demo we will create two applications spanning three
  61              * screens.  One of the applications will have both an ECMA48
  62              * screen and a Swing screen, with all I/O mirrored between them.
  63              * The second application will have a Swing screen containing a
  64              * window showing the first application, also mirroring I/O
  65              * between the window and the other two screens.
  66              */
  67
  68             /*
  69              * We create the first screen and use it to establish a
  70              * MultiBackend.
  71              */
  72             ECMA48Backend ecmaBackend = new ECMA48Backend();
  73             MultiBackend multiBackend = new MultiBackend(ecmaBackend);
  74
  75             /*
  76              * Now we create the first application (a standard demo).
  77              */
  78             DemoApplication demoApp = new DemoApplication(multiBackend);
  79
  80             /*
  81              * We will need the width and height of the ECMA48 screen, so get
  82              * the Screen reference now.
  83              */
  84             Screen multiScreen = multiBackend.getScreen();
  85
  86             /*
  87              * Now we create the second screen (backend) for the first
  88              * application.  It will be the same size as the ECMA48 screen,
  89              * with a font size of 16 points.
  90              */
  91             SwingBackend swingBackend = new SwingBackend(multiScreen.getWidth(),
  92                 multiScreen.getHeight(), 16);
  93
  94             /*
  95              * Add this screen to the MultiBackend, and at this point we have
  96              * one demo application spanning two physical screens.
  97              */
  98             multiBackend.addBackend(swingBackend);
  99             multiBackend.setListener(demoApp);
 100
 101             /*
 102              * Time for the second application.  This one will have a single
 103              * window mirroring the contents of the first application.  Let's
 104              * make it a little larger than the first application's
 105              * width/height.
 106              */
 107             int width = multiScreen.getWidth();
 108             int height = multiScreen.getHeight();
 109
 110             /*
 111              * Make a new Swing window for the second application.
 112              */
 113             SwingBackend monitorBackend = new SwingBackend(width + 5,
 114                 height + 5, 20);
 115
 116             /*
 117              * Setup the second application, give it the basic file and
 118              * window menus.
 119              */
 120             TApplication monitor = new TApplication(monitorBackend);
 121             monitor.addToolMenu();
 122             monitor.addFileMenu();
 123             monitor.addWindowMenu();
 124
 125             /*
 126              * Now add the third screen to the first application.  We want to
 127              * change the object it locks on in its draw() method to the
 128              * MultiScreen, that will dramatically reduce (not totally
 129              * eliminate) screen tearing/artifacts.
 130              */
 131             TWindowBackend windowBackend = new TWindowBackend(demoApp,
 132                 monitor, i18n.getString("monitorWindow"),
 133                 width + 2, height + 2);
 134             windowBackend.setDrawLock(multiScreen);
 135             windowBackend.setOtherApplication(demoApp);
 136             multiBackend.addBackend(windowBackend);
 137
 138             /*
 139              * Three screens, two applications: spin them up!
 140              */
 141             (new Thread(demoApp)).start();
 142             (new Thread(monitor)).start();
 143         } catch (Exception e) {
 144             e.printStackTrace();
 145         }
 146     }
 147
 148 }