src/jexer/demos/DemoTextWindow.java

   1 /*
   2  * Jexer - Java Text User Interface
   3  *
   4  * The MIT License (MIT)
   5  *
   6  * Copyright (C) 2016 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 jexer.*;
  32 import jexer.event.*;
  33 import jexer.menu.*;
  34
  35 /**
  36  * This window demonstates the TText, THScroller, and TVScroller widgets.
  37  */
  38 public class DemoTextWindow extends TWindow {
  39
  40     /**
  41      * Hang onto my TText so I can resize it with the window.
  42      */
  43     private TText textField;
  44
  45     /**
  46      * Public constructor makes a text window out of any string.
  47      *
  48      * @param parent the main application
  49      * @param title the text string
  50      * @param text the text string
  51      */
  52     public DemoTextWindow(final TApplication parent, final String title,
  53         final String text) {
  54
  55         super(parent, title, 0, 0, 44, 20, RESIZABLE);
  56         textField = addText(text, 1, 1, 40, 16);
  57     }
  58
  59     /**
  60      * Public constructor.
  61      *
  62      * @param parent the main application
  63      */
  64     public DemoTextWindow(final TApplication parent) {
  65         this(parent, "Text Area",
  66 "This is an example of a reflowable text field.  Some example text follows.\n" +
  67 "\n" +
  68 "Notice that some menu items should be disabled when this window has focus.\n" +
  69 "\n" +
  70 "This library implements a text-based windowing system loosely\n" +
  71 "reminiscient of Borland's [Turbo\n" +
  72 "Vision](http://en.wikipedia.org/wiki/Turbo_Vision) library.  For those\n" +
  73 "wishing to use the actual C++ Turbo Vision library, see [Sergio\n" +
  74 "Sigala's updated version](http://tvision.sourceforge.net/) that runs\n" +
  75 "on many more platforms.\n" +
  76 "\n" +
  77 "This library is licensed MIT.  See the file LICENSE for the full license\n" +
  78 "for the details.\n");
  79
  80     }
  81
  82     /**
  83      * Handle window/screen resize events.
  84      *
  85      * @param event resize event
  86      */
  87     @Override
  88     public void onResize(final TResizeEvent event) {
  89         if (event.getType() == TResizeEvent.Type.WIDGET) {
  90             // Resize the text field
  91             textField.setWidth(event.getWidth() - 4);
  92             textField.setHeight(event.getHeight() - 4);
  93             textField.reflow();
  94             return;
  95         }
  96
  97         // Pass to children instead
  98         for (TWidget widget: getChildren()) {
  99             widget.onResize(event);
 100         }
 101     }
 102
 103     /**
 104      * Play with menu items.
 105      */
 106     public void onFocus() {
 107         getApplication().enableMenuItem(2001);
 108         getApplication().disableMenuItem(TMenu.MID_SHELL);
 109         getApplication().disableMenuItem(TMenu.MID_EXIT);
 110     }
 111
 112     /**
 113      * Called by application.switchWindow() when another window gets the
 114      * focus.
 115      */
 116     public void onUnfocus() {
 117         getApplication().disableMenuItem(2001);
 118         getApplication().enableMenuItem(TMenu.MID_SHELL);
 119         getApplication().enableMenuItem(TMenu.MID_EXIT);
 120     }
 121
 122 }