src/jexer/demos/DemoTreeViewWindow.java

   1 /*
   2  * Jexer - Java Text User Interface
   3  *
   4  * License: LGPLv3 or later
   5  *
   6  * This module is licensed under the GNU Lesser General Public License
   7  * Version 3.  Please see the file "COPYING" in this directory for more
   8  * information about the GNU Lesser General Public License Version 3.
   9  *
  10  *     Copyright (C) 2015  Kevin Lamonte
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public License
  14  * as published by the Free Software Foundation; either version 3 of
  15  * the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this program; if not, see
  24  * http://www.gnu.org/licenses/, or write to the Free Software
  25  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  26  * 02110-1301 USA
  27  *
  28  * @author Kevin Lamonte [kevin.lamonte@gmail.com]
  29  * @version 1
  30  */
  31 package jexer.demos;
  32
  33 import java.io.IOException;
  34
  35 import jexer.*;
  36 import jexer.event.*;
  37
  38 /**
  39  * This window demonstates the TTreeView widget.
  40  */
  41 public class DemoTreeViewWindow extends TWindow {
  42
  43     /**
  44      * Hang onto my TTreeView so I can resize it with the window.
  45      */
  46     private TTreeView treeView;
  47
  48     /**
  49      * Public constructor.
  50      *
  51      * @param parent the main application
  52      * @throws IOException if a java.io operation throws
  53      */
  54     public DemoTreeViewWindow(final TApplication parent) throws IOException {
  55         super(parent, "Tree View", 0, 0, 44, 16, TWindow.RESIZABLE);
  56
  57         // Load the treeview with "stuff"
  58         treeView = addTreeView(1, 1, 40, 12);
  59         new TDirectoryTreeItem(treeView, ".", true);
  60     }
  61
  62     /**
  63      * Handle window/screen resize events.
  64      *
  65      * @param resize resize event
  66      */
  67     @Override
  68     public void onResize(final TResizeEvent resize) {
  69         if (resize.getType() == TResizeEvent.Type.WIDGET) {
  70             // Resize the text field
  71             treeView.setWidth(resize.getWidth() - 4);
  72             treeView.setHeight(resize.getHeight() - 4);
  73             treeView.reflow();
  74             return;
  75         }
  76
  77         // Pass to children instead
  78         for (TWidget widget: getChildren()) {
  79             widget.onResize(resize);
  80         }
  81     }
  82
  83 }