Source Code Cross Referenced for DynaTableWidget.java in  » Ajax » GWT » com » google » gwt » sample » dynatable » client » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Ajax » GWT » com.google.gwt.sample.dynatable.client 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2007 Google Inc.
003:         * 
004:         * Licensed under the Apache License, Version 2.0 (the "License"); you may not
005:         * use this file except in compliance with the License. You may obtain a copy of
006:         * the License at
007:         * 
008:         * http://www.apache.org/licenses/LICENSE-2.0
009:         * 
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
012:         * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
013:         * License for the specific language governing permissions and limitations under
014:         * the License.
015:         */
016:        package com.google.gwt.sample.dynatable.client;
017:
018:        import com.google.gwt.sample.dynatable.client.DynaTableDataProvider.RowDataAcceptor;
019:        import com.google.gwt.user.client.rpc.InvocationException;
020:        import com.google.gwt.user.client.ui.Button;
021:        import com.google.gwt.user.client.ui.ClickListener;
022:        import com.google.gwt.user.client.ui.Composite;
023:        import com.google.gwt.user.client.ui.DialogBox;
024:        import com.google.gwt.user.client.ui.DockPanel;
025:        import com.google.gwt.user.client.ui.Grid;
026:        import com.google.gwt.user.client.ui.HTML;
027:        import com.google.gwt.user.client.ui.HasAlignment;
028:        import com.google.gwt.user.client.ui.HorizontalPanel;
029:        import com.google.gwt.user.client.ui.VerticalPanel;
030:        import com.google.gwt.user.client.ui.Widget;
031:
032:        /**
033:         * A composite Widget that implements the main interface for the dynamic table,
034:         * including the data table, status indicators, and paging buttons.
035:         */
036:        public class DynaTableWidget extends Composite {
037:
038:            /**
039:             * A dialog box for displaying an error.
040:             */
041:            private static class ErrorDialog extends DialogBox implements 
042:                    ClickListener {
043:                private HTML body = new HTML("");
044:
045:                public ErrorDialog() {
046:                    setStylePrimaryName("DynaTable-ErrorDialog");
047:                    Button closeButton = new Button("Close", this );
048:                    VerticalPanel panel = new VerticalPanel();
049:                    panel.setSpacing(4);
050:                    panel.add(body);
051:                    panel.add(closeButton);
052:                    panel.setCellHorizontalAlignment(closeButton,
053:                            VerticalPanel.ALIGN_RIGHT);
054:                    setWidget(panel);
055:                }
056:
057:                public String getBody() {
058:                    return body.getHTML();
059:                }
060:
061:                public void onClick(Widget sender) {
062:                    hide();
063:                }
064:
065:                public void setBody(String html) {
066:                    body.setHTML(html);
067:                }
068:            }
069:
070:            private class NavBar extends Composite implements  ClickListener {
071:
072:                public final DockPanel bar = new DockPanel();
073:                public final Button gotoFirst = new Button("<<", this );
074:                public final Button gotoNext = new Button(">", this );
075:                public final Button gotoPrev = new Button("<", this );
076:                public final HTML status = new HTML();
077:
078:                public NavBar() {
079:                    initWidget(bar);
080:                    bar.setStyleName("navbar");
081:                    status.setStyleName("status");
082:
083:                    HorizontalPanel buttons = new HorizontalPanel();
084:                    buttons.add(gotoFirst);
085:                    buttons.add(gotoPrev);
086:                    buttons.add(gotoNext);
087:                    bar.add(buttons, DockPanel.EAST);
088:                    bar.setCellHorizontalAlignment(buttons,
089:                            DockPanel.ALIGN_RIGHT);
090:                    bar.add(status, DockPanel.CENTER);
091:                    bar.setVerticalAlignment(DockPanel.ALIGN_MIDDLE);
092:                    bar.setCellHorizontalAlignment(status,
093:                            HasAlignment.ALIGN_RIGHT);
094:                    bar.setCellVerticalAlignment(status,
095:                            HasAlignment.ALIGN_MIDDLE);
096:                    bar.setCellWidth(status, "100%");
097:
098:                    // Initialize prev & first button to disabled.
099:                    //
100:                    gotoPrev.setEnabled(false);
101:                    gotoFirst.setEnabled(false);
102:                }
103:
104:                public void onClick(Widget sender) {
105:                    if (sender == gotoNext) {
106:                        startRow += getDataRowCount();
107:                        refresh();
108:                    } else if (sender == gotoPrev) {
109:                        startRow -= getDataRowCount();
110:                        if (startRow < 0) {
111:                            startRow = 0;
112:                        }
113:                        refresh();
114:                    } else if (sender == gotoFirst) {
115:                        startRow = 0;
116:                        refresh();
117:                    }
118:                }
119:            }
120:
121:            private class RowDataAcceptorImpl implements  RowDataAcceptor {
122:                public void accept(int startRow, String[][] data) {
123:
124:                    int destRowCount = getDataRowCount();
125:                    int destColCount = grid.getCellCount(0);
126:                    assert (data.length <= destRowCount) : "Too many rows";
127:
128:                    int srcRowIndex = 0;
129:                    int srcRowCount = data.length;
130:                    int destRowIndex = 1; // skip navbar row
131:                    for (; srcRowIndex < srcRowCount; ++srcRowIndex, ++destRowIndex) {
132:                        String[] srcRowData = data[srcRowIndex];
133:                        assert (srcRowData.length == destColCount) : " Column count mismatch";
134:                        for (int srcColIndex = 0; srcColIndex < destColCount; ++srcColIndex) {
135:                            String cellHTML = srcRowData[srcColIndex];
136:                            grid.setText(destRowIndex, srcColIndex, cellHTML);
137:                        }
138:                    }
139:
140:                    // Clear remaining table rows.
141:                    //
142:                    boolean isLastPage = false;
143:                    for (; destRowIndex < destRowCount + 1; ++destRowIndex) {
144:                        isLastPage = true;
145:                        for (int destColIndex = 0; destColIndex < destColCount; ++destColIndex) {
146:                            grid.clearCell(destRowIndex, destColIndex);
147:                        }
148:                    }
149:
150:                    // Synchronize the nav buttons.
151:                    navbar.gotoNext.setEnabled(!isLastPage);
152:                    navbar.gotoFirst.setEnabled(startRow > 0);
153:                    navbar.gotoPrev.setEnabled(startRow > 0);
154:
155:                    // Update the status message.
156:                    //
157:                    setStatusText((startRow + 1) + " - "
158:                            + (startRow + srcRowCount));
159:                }
160:
161:                public void failed(Throwable caught) {
162:                    setStatusText("Error");
163:                    if (errorDialog == null) {
164:                        errorDialog = new ErrorDialog();
165:                    }
166:                    if (caught instanceof  InvocationException) {
167:                        errorDialog
168:                                .setText("An RPC server could not be reached");
169:                        errorDialog.setBody(NO_CONNECTION_MESSAGE);
170:                    } else {
171:                        errorDialog
172:                                .setText("Unexcepted Error processing remote call");
173:                        errorDialog.setBody(caught.getMessage());
174:                    }
175:                    errorDialog.center();
176:                }
177:            }
178:
179:            private static final String NO_CONNECTION_MESSAGE = "<p>The DynaTable example uses a <a href=\"http://code.google.com/"
180:                    + "webtoolkit/documentation/com.google.gwt.doc.DeveloperGuide."
181:                    + "RemoteProcedureCalls.html\" target=\"_blank\">Remote Procedure Call</a> "
182:                    + "(RPC) to request data from the server.  In order for the RPC to "
183:                    + "successfully return data, the server component must be available.</p>"
184:                    + "<p>If you are running this demo from compiled code, the server "
185:                    + "component may not be available to respond to the RPC requests from "
186:                    + "DynaTable.  Try running DynaTable in hosted mode to see the demo "
187:                    + "in action.</p> "
188:                    + "<p>Click on the Remote Procedure Call link above for more information "
189:                    + "on GWT's RPC infrastructure.";
190:
191:            private final RowDataAcceptor acceptor = new RowDataAcceptorImpl();
192:
193:            private final Grid grid = new Grid();
194:
195:            private final NavBar navbar = new NavBar();
196:
197:            private ErrorDialog errorDialog = null;
198:
199:            private final DockPanel outer = new DockPanel();
200:
201:            private final DynaTableDataProvider provider;
202:
203:            private int startRow = 0;
204:
205:            public DynaTableWidget(DynaTableDataProvider provider,
206:                    String[] columns, String[] columnStyles, int rowCount) {
207:
208:                if (columns.length == 0) {
209:                    throw new IllegalArgumentException(
210:                            "expecting a positive number of columns");
211:                }
212:
213:                if (columnStyles != null
214:                        && columns.length != columnStyles.length) {
215:                    throw new IllegalArgumentException(
216:                            "expecting as many styles as columns");
217:                }
218:
219:                this .provider = provider;
220:                initWidget(outer);
221:                grid.setStyleName("table");
222:                outer.add(navbar, DockPanel.NORTH);
223:                outer.add(grid, DockPanel.CENTER);
224:                initTable(columns, columnStyles, rowCount);
225:                setStyleName("DynaTable-DynaTableWidget");
226:            }
227:
228:            public void clearStatusText() {
229:                navbar.status.setHTML("&nbsp;");
230:            }
231:
232:            public void refresh() {
233:                // Disable buttons temporarily to stop the user from running off the end.
234:                //
235:                navbar.gotoFirst.setEnabled(false);
236:                navbar.gotoPrev.setEnabled(false);
237:                navbar.gotoNext.setEnabled(false);
238:
239:                setStatusText("Please wait...");
240:                provider.updateRowData(startRow, grid.getRowCount() - 1,
241:                        acceptor);
242:            }
243:
244:            public void setRowCount(int rows) {
245:                grid.resizeRows(rows);
246:            }
247:
248:            public void setStatusText(String text) {
249:                navbar.status.setText(text);
250:            }
251:
252:            private int getDataRowCount() {
253:                return grid.getRowCount() - 1;
254:            }
255:
256:            private void initTable(String[] columns, String[] columnStyles,
257:                    int rowCount) {
258:                // Set up the header row. It's one greater than the number of visible rows.
259:                //
260:                grid.resize(rowCount + 1, columns.length);
261:                for (int i = 0, n = columns.length; i < n; i++) {
262:                    grid.setText(0, i, columns[i]);
263:                    if (columnStyles != null) {
264:                        grid.getCellFormatter().setStyleName(0, i,
265:                                columnStyles[i] + " header");
266:                    }
267:                }
268:            }
269:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.