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 import static jexer.TCommand.*;
  35 import static jexer.TKeypress.*;
  36
  37 /**
  38  * This window demonstates the TText, THScroller, and TVScroller widgets.
  39  */
  40 public class DemoTextWindow extends TWindow {
  41
  42     /**
  43      * Hang onto my TText so I can resize it with the window.
  44      */
  45     private TText textField;
  46
  47     /**
  48      * Public constructor makes a text window out of any string.
  49      *
  50      * @param parent the main application
  51      * @param title the text string
  52      * @param text the text string
  53      */
  54     public DemoTextWindow(final TApplication parent, final String title,
  55         final String text) {
  56
  57         super(parent, title, 0, 0, 44, 20, RESIZABLE);
  58         textField = addText(text, 1, 1, 40, 16);
  59
  60         statusBar = newStatusBar("Reflowable text window");
  61         statusBar.addShortcutKeypress(kbF1, cmHelp, "Help");
  62         statusBar.addShortcutKeypress(kbF2, cmShell, "Shell");
  63         statusBar.addShortcutKeypress(kbF3, cmOpen, "Open");
  64         statusBar.addShortcutKeypress(kbF10, cmExit, "Exit");
  65     }
  66
  67     /**
  68      * Public constructor.
  69      *
  70      * @param parent the main application
  71      */
  72     public DemoTextWindow(final TApplication parent) {
  73         this(parent, "Text Area",
  74 "This is an example of a reflowable text field.  Some example text follows.\n" +
  75 "\n" +
  76 "Notice that some menu items should be disabled when this window has focus.\n" +
  77 "\n" +
  78 "This library implements a text-based windowing system loosely\n" +
  79 "reminiscient of Borland's [Turbo\n" +
  80 "Vision](http://en.wikipedia.org/wiki/Turbo_Vision) library.  For those\n" +
  81 "wishing to use the actual C++ Turbo Vision library, see [Sergio\n" +
  82 "Sigala's updated version](http://tvision.sourceforge.net/) that runs\n" +
  83 "on many more platforms.\n" +
  84 "\n" +
  85 "This library is licensed MIT.  See the file LICENSE for the full license\n" +
  86 "for the details.\n");
  87
  88     }
  89
  90     /**
  91      * Handle window/screen resize events.
  92      *
  93      * @param event resize event
  94      */
  95     @Override
  96     public void onResize(final TResizeEvent event) {
  97         if (event.getType() == TResizeEvent.Type.WIDGET) {
  98             // Resize the text field
  99             textField.setWidth(event.getWidth() - 4);
 100             textField.setHeight(event.getHeight() - 4);
 101             textField.reflow();
 102             return;
 103         }
 104
 105         // Pass to children instead
 106         for (TWidget widget: getChildren()) {
 107             widget.onResize(event);
 108         }
 109     }
 110
 111     /**
 112      * Play with menu items.
 113      */
 114     public void onFocus() {
 115         getApplication().enableMenuItem(2001);
 116         getApplication().disableMenuItem(TMenu.MID_SHELL);
 117         getApplication().disableMenuItem(TMenu.MID_EXIT);
 118     }
 119
 120     /**
 121      * Called by application.switchWindow() when another window gets the
 122      * focus.
 123      */
 124     public void onUnfocus() {
 125         getApplication().disableMenuItem(2001);
 126         getApplication().enableMenuItem(TMenu.MID_SHELL);
 127         getApplication().enableMenuItem(TMenu.MID_EXIT);
 128     }
 129
 130 }