d9bbeb765db92d45aca5537fe274f9b288c42c92
[fanfix.git] / src / jexer / demos / DemoApplication.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.*;
34 import java.util.*;
35
36 import jexer.*;
37 import jexer.event.*;
38 import jexer.menu.*;
39
40 /**
41 * The demo application itself.
42 */
43 public class DemoApplication extends TApplication {
44
45 /**
46 * Add all the widgets of the demo.
47 */
48 private void addAllWidgets() {
49 new DemoMainWindow(this);
50
51 // Add the menus
52 addFileMenu();
53 addEditMenu();
54
55 TMenu demoMenu = addMenu("&Demo");
56 TMenuItem item = demoMenu.addItem(2000, "&Checkable");
57 item.setCheckable(true);
58 item = demoMenu.addItem(2001, "Disabled");
59 item.setEnabled(false);
60 item = demoMenu.addItem(2002, "&Normal");
61 TSubMenu subMenu = demoMenu.addSubMenu("Sub-&Menu");
62 item = demoMenu.addItem(2010, "N&ormal A&&D");
63
64 item = subMenu.addItem(2000, "&Checkable (sub)");
65 item.setCheckable(true);
66 item = subMenu.addItem(2001, "Disabled (sub)");
67 item.setEnabled(false);
68 item = subMenu.addItem(2002, "&Normal (sub)");
69
70 subMenu = subMenu.addSubMenu("Sub-&Menu");
71 item = subMenu.addItem(2000, "&Checkable (sub)");
72 item.setCheckable(true);
73 item = subMenu.addItem(2001, "Disabled (sub)");
74 item.setEnabled(false);
75 item = subMenu.addItem(2002, "&Normal (sub)");
76
77 addWindowMenu();
78 }
79
80 /**
81 * Public constructor.
82 *
83 * @param input an InputStream connected to the remote user, or null for
84 * System.in. If System.in is used, then on non-Windows systems it will
85 * be put in raw mode; shutdown() will (blindly!) put System.in in cooked
86 * mode. input is always converted to a Reader with UTF-8 encoding.
87 * @param output an OutputStream connected to the remote user, or null
88 * for System.out. output is always converted to a Writer with UTF-8
89 * encoding.
90 * @throws UnsupportedEncodingException if an exception is thrown when
91 * creating the InputStreamReader
92 */
93 public DemoApplication(final InputStream input,
94 final OutputStream output) throws UnsupportedEncodingException {
95 super(input, output);
96 addAllWidgets();
97 }
98
99 /**
100 * Handle menu events.
101 *
102 * @param menu menu event
103 * @return if true, the event was processed and should not be passed onto
104 * a window
105 */
106 @Override
107 public boolean onMenu(TMenuEvent menu) {
108 if (menu.getId() == TMenu.MID_OPEN_FILE) {
109 try {
110 String filename = fileOpenBox(".");
111 if (filename != null) {
112 try {
113 File file = new File(filename);
114 StringBuilder fileContents = new StringBuilder();
115 Scanner scanner = new Scanner(file);
116 String EOL = System.getProperty("line.separator");
117
118 try {
119 while(scanner.hasNextLine()) {
120 fileContents.append(scanner.nextLine() + EOL);
121 }
122 new DemoTextWindow(this, filename,
123 fileContents.toString());
124 } finally {
125 scanner.close();
126 }
127 } catch (IOException e) {
128 e.printStackTrace();
129 }
130 }
131 } catch (IOException e) {
132 e.printStackTrace();
133 }
134 return true;
135 }
136 return super.onMenu(menu);
137 }
138
139 /**
140 * Public constructor.
141 *
142 * @param backendType one of the TApplication.BackendType values
143 * @throws Exception if TApplication can't instantiate the Backend.
144 */
145 public DemoApplication(BackendType backendType) throws Exception {
146 super(backendType);
147 addAllWidgets();
148 }
149 }