src/jexer/demos/DemoTextWindow.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.TAction;
  34 import jexer.TApplication;
  35 import jexer.TText;
  36 import jexer.TWidget;
  37 import jexer.TWindow;
  38 import jexer.event.TResizeEvent;
  39 import jexer.menu.TMenu;
  40 import static jexer.TCommand.*;
  41 import static jexer.TKeypress.*;
  42
  43 /**
  44  * This window demonstates the TText, THScroller, and TVScroller widgets.
  45  */
  46 public class DemoTextWindow extends TWindow {
  47
  48     /**
  49      * Translated strings.
  50      */
  51     private static final ResourceBundle i18n = ResourceBundle.getBundle(DemoTextWindow.class.getName());
  52
  53     // ------------------------------------------------------------------------
  54     // Variables --------------------------------------------------------------
  55     // ------------------------------------------------------------------------
  56
  57     /**
  58      * Hang onto my TText so I can resize it with the window.
  59      */
  60     private TText textField;
  61
  62     // ------------------------------------------------------------------------
  63     // Constructors -----------------------------------------------------------
  64     // ------------------------------------------------------------------------
  65
  66     /**
  67      * Public constructor makes a text window out of any string.
  68      *
  69      * @param parent the main application
  70      * @param title the text string
  71      * @param text the text string
  72      */
  73     public DemoTextWindow(final TApplication parent, final String title,
  74         final String text) {
  75
  76         super(parent, title, 0, 0, 44, 22, RESIZABLE);
  77         textField = addText(text, 1, 3, 40, 16);
  78
  79         addButton(i18n.getString("left"), 1, 1, new TAction() {
  80                 public void DO() {
  81                     textField.leftJustify();
  82                 }
  83         });
  84
  85         addButton(i18n.getString("center"), 10, 1, new TAction() {
  86                 public void DO() {
  87                     textField.centerJustify();
  88                 }
  89         });
  90
  91         addButton(i18n.getString("right"), 21, 1, new TAction() {
  92                 public void DO() {
  93                     textField.rightJustify();
  94                 }
  95         });
  96
  97         addButton(i18n.getString("full"), 31, 1, new TAction() {
  98                 public void DO() {
  99                     textField.fullJustify();
 100                 }
 101         });
 102
 103         statusBar = newStatusBar(i18n.getString("statusBar"));
 104         statusBar.addShortcutKeypress(kbF1, cmHelp,
 105             i18n.getString("statusBarHelp"));
 106         statusBar.addShortcutKeypress(kbF2, cmShell,
 107             i18n.getString("statusBarShell"));
 108         statusBar.addShortcutKeypress(kbF3, cmOpen,
 109             i18n.getString("statusBarOpen"));
 110         statusBar.addShortcutKeypress(kbF10, cmExit,
 111             i18n.getString("statusBarExit"));
 112     }
 113
 114     /**
 115      * Public constructor.
 116      *
 117      * @param parent the main application
 118      */
 119     public DemoTextWindow(final TApplication parent) {
 120         this(parent, i18n.getString("windowTitle"),
 121 "This is an example of a reflowable text field.  Some example text follows.\n" +
 122 "\n" +
 123 "Notice that some menu items should be disabled when this window has focus.\n" +
 124 "\n" +
 125 "This library implements a text-based windowing system loosely " +
 126 "reminiscent of Borland's [Turbo " +
 127 "Vision](http://en.wikipedia.org/wiki/Turbo_Vision) library.  For those " +
 128 "wishing to use the actual C++ Turbo Vision library, see [Sergio " +
 129 "Sigala's updated version](http://tvision.sourceforge.net/) that runs " +
 130 "on many more platforms.\n" +
 131 "\n" +
 132 "This library is licensed MIT.  See the file LICENSE for the full license " +
 133 "for the details.\n");
 134
 135     }
 136
 137     // ------------------------------------------------------------------------
 138     // TWindow ----------------------------------------------------------------
 139     // ------------------------------------------------------------------------
 140
 141     /**
 142      * Handle window/screen resize events.
 143      *
 144      * @param event resize event
 145      */
 146     @Override
 147     public void onResize(final TResizeEvent event) {
 148         if (event.getType() == TResizeEvent.Type.WIDGET) {
 149             // Resize the text field
 150             TResizeEvent textSize = new TResizeEvent(TResizeEvent.Type.WIDGET,
 151                 event.getWidth() - 4, event.getHeight() - 6);
 152             textField.onResize(textSize);
 153             return;
 154         }
 155
 156         // Pass to children instead
 157         for (TWidget widget: getChildren()) {
 158             widget.onResize(event);
 159         }
 160     }
 161
 162     /**
 163      * Play with menu items.
 164      */
 165     public void onFocus() {
 166         getApplication().enableMenuItem(2001);
 167         getApplication().disableMenuItem(TMenu.MID_SHELL);
 168         getApplication().disableMenuItem(TMenu.MID_EXIT);
 169     }
 170
 171     /**
 172      * Called by application.switchWindow() when another window gets the
 173      * focus.
 174      */
 175     public void onUnfocus() {
 176         getApplication().disableMenuItem(2001);
 177         getApplication().enableMenuItem(TMenu.MID_SHELL);
 178         getApplication().enableMenuItem(TMenu.MID_EXIT);
 179     }
 180
 181 }