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Java > Open Source Codes > org > antlr > xjlib > appkit > frame > XJWindow


1 /*
2
3 [The "BSD licence"]
4 Copyright (c) 2005 Jean Bovet
5 All rights reserved.
6
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions
9 are met:
10
11 1. Redistributions of source code must retain the above copyright
12 notice, this list of conditions and the following disclaimer.
13 2. Redistributions in binary form must reproduce the above copyright
14 notice, this list of conditions and the following disclaimer in the
15 documentation and/or other materials provided with the distribution.
16 3. The name of the author may not be used to endorse or promote products
17 derived from this software without specific prior written permission.
18
19 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30 */

31
32 package org.antlr.xjlib.appkit.frame;
33
34 import org.antlr.xjlib.appkit.app.XJApplication;
35 import org.antlr.xjlib.appkit.document.XJData;
36 import org.antlr.xjlib.appkit.document.XJDocument;
37 import org.antlr.xjlib.appkit.menu.XJMainMenuBar;
38 import org.antlr.xjlib.appkit.menu.XJMenu;
39 import org.antlr.xjlib.appkit.menu.XJMenuItem;
40
41 import javax.swing.*;
42
43 public class XJWindow extends XJFrame {
44
45     protected XJDocument document = null;
46
47     public XJWindow() {
48         XJApplication.shared().addWindow(this);
49
50         setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
51     }
52
53     public boolean isAuxiliaryWindow() {
54         return false;
55     }
56
57     public boolean shouldAppearsInWindowMenu() {
58         return true;
59     }
60
61     public void setDocument(XJDocument document) {
62         this.document = document;
63     }
64
65     public XJDocument getDocument() {
66         return document;
67     }
68
69     public XJData getDocumentData() {
70         if(document != null)
71             return document.getDocumentData();
72         else
73             return null;
74     }
75
76     public void close() {
77         XJApplication.shared().removeWindow(this);
78         super.close();
79     }
80
81     public void performClose() {
82         if(document == null)
83             close();
84         else
85             document.performClose();
86     }
87
88     public void menuItemState(XJMenuItem item) {
89         super.menuItemState(item);
90
91         if(document == null) {
92             if(item.getTag() == XJMainMenuBar.MI_CLOSE)
93                 item.setEnabled(true);
94             else
95                 item.setEnabled(false);
96         }
97
98         switch(item.getTag()) {
99             case XJMainMenuBar.MI_SAVE:
100                 item.setEnabled(document != null && document.isDirty());
101                 break;
102         }
103     }
104
105     public void handleMenuEvent(XJMenu menu, XJMenuItem item) {
106         super.handleMenuEvent(menu, item);
107         
108         if(item.getTag() == XJMainMenuBar.MI_CLOSE) {
109             triggerClose();
110         }
111     }
112
113     public void windowActivated() {
114         XJMainMenuBar.refreshAllMenuBars();
115
116         if(getDocument() == null)
117             return;
118
119         if(getDocument().isModifiedOnDisk()) {
120             windowDocumentPathDidChange();
121             getDocument().synchronizeLastModifiedDate();
122         }
123     }
124
125     public void windowClosing() {
126         performClose();
127     }
128
129     public void windowDocumentPathDidChange() {
130         // can be used by subclasses to perform something when the document
131
// associated file has changed (based on the file modification date)
132
}
133
134 }
135
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