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Snippet96, navigate a table cells with arrow keys
author yidabu <yidabu@gmail.com>
date Thu, 05 Jun 2008 12:30:01 +0800
parents
children e962e274e6f9
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100
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1
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2 /*******************************************************************************
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3 * Copyright (c) 2000, 2004 IBM Corporation and others.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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8 *
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9 * Contributors:
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10 * IBM Corporation - initial API and implementation
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11 * Port to the D programming language:
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12 * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ )
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13 *******************************************************************************/
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14
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15 module snippets.table.Snippet96;
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16
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17 // http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet96.java?view=co
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18
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19 /*
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20 * TableCursor example snippet: navigate a table cells with arrow keys.
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21 * Edit when user hits Return key. Exit edit mode by hitting Escape (cancels edit)
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22 * or Return (applies edit to table).
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23 *
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24 * For a list of all SWT example snippets see
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25 * http://www.eclipse.org/swt/snippets/
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26 */
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27 import dwt.DWT;
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28 import dwt.widgets.Button;
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29 import dwt.widgets.Display;
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30 import dwt.widgets.Event;
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31 import dwt.widgets.Label;
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32 import dwt.widgets.Listener;
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33 import dwt.widgets.Shell;
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34 import dwt.widgets.Table;
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35 import dwt.widgets.TableItem;
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36 import dwt.widgets.TableColumn;
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37 import dwt.widgets.Text;
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38
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39 import dwt.custom.TableCursor;
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40 import dwt.custom.ControlEditor;
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41
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42 import dwt.layout.GridData;
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43 import dwt.layout.GridLayout;
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44
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45 import dwt.events.SelectionEvent;
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46 import dwt.events.SelectionAdapter;
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47 import dwt.events.KeyEvent;
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48 import dwt.events.KeyAdapter;
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49 import dwt.events.FocusEvent;
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50 import dwt.events.FocusAdapter;
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51 import dwt.events.MouseEvent;
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52 import dwt.events.MouseAdapter;
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53
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54 import dwt.dwthelper.utils;
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55
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56 import tango.util.Convert;
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57
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58
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59 void main(String[] args)
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60 {
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61 Snippet96.main(args);
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62 }
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63
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64
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65 public class Snippet96 {
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66
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67 public static void main(String[] args) {
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68 Display display = new Display();
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69 Shell shell = new Shell(display);
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70 shell.setLayout(new GridLayout());
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71
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72 // create a a table with 3 columns and fill with data
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73 final Table table = new Table(shell, DWT.BORDER | DWT.MULTI | DWT.FULL_SELECTION);
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74 table.setLayoutData(new GridData(GridData.FILL_BOTH));
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75 TableColumn column1 = new TableColumn(table, DWT.NONE);
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76 TableColumn column2 = new TableColumn(table, DWT.NONE);
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77 TableColumn column3 = new TableColumn(table, DWT.NONE);
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78 for (int i = 0; i < 100; i++) {
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79 TableItem item = new TableItem(table, DWT.NONE);
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80 item.setText(["cell " ~ to!(char[])(i) ~ " 0", "cell " ~ to!(char[])(i) ~ " 1", "cell " ~ to!(char[])(i) ~ " 2" ]);
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81 }
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82 column1.pack();
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83 column2.pack();
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84 column3.pack();
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85
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86 // create a TableCursor to navigate around the table
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87 final TableCursor cursor = new TableCursor(table, DWT.NONE);
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88 // create an editor to edit the cell when the user hits "ENTER"
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89 // while over a cell in the table
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90 final ControlEditor editor = new ControlEditor(cursor);
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91 editor.grabHorizontal = true;
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92 editor.grabVertical = true;
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93
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94 cursor.addSelectionListener(new class(table, editor, cursor) SelectionAdapter {
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95 // when the TableEditor is over a cell, select the corresponding row in
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96 // the table
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97
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98 Table table;
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99 ControlEditor editor;
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100 TableCursor cursor;
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101 this(Table table_, ControlEditor editor_, TableCursor cursor_)
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102 {
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103 table = table_;
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104 editor = editor_;
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105 cursor = cursor_;
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106 }
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107
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108 public void widgetSelected(SelectionEvent e) {
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109 table.setSelection([cursor.getRow()]);
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110 }
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111 // when the user hits "ENTER" in the TableCursor, pop up a text editor so that
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112 // they can change the text of the cell
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113 public void widgetDefaultSelected(SelectionEvent e) {
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114 final Text text = new Text(cursor, DWT.NONE);
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115 TableItem row = cursor.getRow();
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116 int column = cursor.getColumn();
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117 text.setText(row.getText(column));
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118 text.addKeyListener(new class(text, cursor) KeyAdapter {
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119 Text text;
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120 TableCursor cursor;
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121 this(Text text_, TableCursor cursor_)
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122 {
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123 text = text_;
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124 cursor = cursor_;
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125 }
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126 public void keyPressed(KeyEvent e) {
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127 // close the text editor and copy the data over
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128 // when the user hits "ENTER"
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129 if (e.character == DWT.CR) {
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130 TableItem row = cursor.getRow();
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131 int column = cursor.getColumn();
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132 row.setText(column, text.getText());
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133 text.dispose();
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134 }
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135 // close the text editor when the user hits "ESC"
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136 if (e.character == DWT.ESC) {
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137 text.dispose();
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138 }
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139 }
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140 });
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parents:
diff changeset
141 // close the text editor when the user tabs away
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yidabu <yidabu@gmail.com>
parents:
diff changeset
142 text.addFocusListener(new class(text) FocusAdapter {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
143 Text text;
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yidabu <yidabu@gmail.com>
parents:
diff changeset
144 this(Text text_)
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yidabu <yidabu@gmail.com>
parents:
diff changeset
145 {
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
146 text = text_;
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yidabu <yidabu@gmail.com>
parents:
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147 }
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yidabu <yidabu@gmail.com>
parents:
diff changeset
148 public void focusLost(FocusEvent e) {
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yidabu <yidabu@gmail.com>
parents:
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149 text.dispose();
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yidabu <yidabu@gmail.com>
parents:
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150 }
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yidabu <yidabu@gmail.com>
parents:
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151 });
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yidabu <yidabu@gmail.com>
parents:
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152 editor.setEditor(text);
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yidabu <yidabu@gmail.com>
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153 text.setFocus();
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yidabu <yidabu@gmail.com>
parents:
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154 }
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yidabu <yidabu@gmail.com>
parents:
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155 });
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yidabu <yidabu@gmail.com>
parents:
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156 // Hide the TableCursor when the user hits the "CTRL" or "SHIFT" key.
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yidabu <yidabu@gmail.com>
parents:
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157 // This alows the user to select multiple items in the table.
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yidabu <yidabu@gmail.com>
parents:
diff changeset
158 cursor.addKeyListener(new class(cursor) KeyAdapter {
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yidabu <yidabu@gmail.com>
parents:
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159 TableCursor cursor;
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yidabu <yidabu@gmail.com>
parents:
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160 this(TableCursor cursor_)
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yidabu <yidabu@gmail.com>
parents:
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161 {
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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162 cursor = cursor_;
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yidabu <yidabu@gmail.com>
parents:
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163 }
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yidabu <yidabu@gmail.com>
parents:
diff changeset
164 public void keyPressed(KeyEvent e) {
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yidabu <yidabu@gmail.com>
parents:
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165 if (e.keyCode == DWT.CTRL
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yidabu <yidabu@gmail.com>
parents:
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166 || e.keyCode == DWT.SHIFT
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yidabu <yidabu@gmail.com>
parents:
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167 || (e.stateMask & DWT.CONTROL) != 0
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yidabu <yidabu@gmail.com>
parents:
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168 || (e.stateMask & DWT.SHIFT) != 0) {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
169 cursor.setVisible(false);
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yidabu <yidabu@gmail.com>
parents:
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170 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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171 }
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yidabu <yidabu@gmail.com>
parents:
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172 });
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yidabu <yidabu@gmail.com>
parents:
diff changeset
173 // When the user double clicks in the TableCursor, pop up a text editor so that
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yidabu <yidabu@gmail.com>
parents:
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174 // they can change the text of the cell
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yidabu <yidabu@gmail.com>
parents:
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175 cursor.addMouseListener(new class(cursor, editor) MouseAdapter {
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yidabu <yidabu@gmail.com>
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176 ControlEditor editor;
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yidabu <yidabu@gmail.com>
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177 TableCursor cursor;
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yidabu <yidabu@gmail.com>
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178 this(TableCursor cursor_, ControlEditor editor_)
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yidabu <yidabu@gmail.com>
parents:
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179 {
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yidabu <yidabu@gmail.com>
parents:
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180 cursor = cursor_;
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yidabu <yidabu@gmail.com>
parents:
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181 editor = editor_;
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yidabu <yidabu@gmail.com>
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182 }
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yidabu <yidabu@gmail.com>
parents:
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183
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yidabu <yidabu@gmail.com>
parents:
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184 public void mouseDown(MouseEvent e) {
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yidabu <yidabu@gmail.com>
parents:
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185 final Text text = new Text(cursor, DWT.NONE);
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yidabu <yidabu@gmail.com>
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186 TableItem row = cursor.getRow();
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yidabu <yidabu@gmail.com>
parents:
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187 int column = cursor.getColumn();
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yidabu <yidabu@gmail.com>
parents:
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188 text.setText(row.getText(column));
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yidabu <yidabu@gmail.com>
parents:
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189 text.addKeyListener(new class(text, cursor) KeyAdapter {
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yidabu <yidabu@gmail.com>
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190 Text text;
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yidabu <yidabu@gmail.com>
parents:
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191 TableCursor cursor;
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yidabu <yidabu@gmail.com>
parents:
diff changeset
192 this(Text text_, TableCursor cursor_)
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yidabu <yidabu@gmail.com>
parents:
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193 {
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yidabu <yidabu@gmail.com>
parents:
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194 text = text_;
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yidabu <yidabu@gmail.com>
parents:
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195 cursor = cursor_;
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yidabu <yidabu@gmail.com>
parents:
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196 }
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yidabu <yidabu@gmail.com>
parents:
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197 public void keyPressed(KeyEvent e) {
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yidabu <yidabu@gmail.com>
parents:
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198 // close the text editor and copy the data over
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yidabu <yidabu@gmail.com>
parents:
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199 // when the user hits "ENTER"
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yidabu <yidabu@gmail.com>
parents:
diff changeset
200 if (e.character == DWT.CR) {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
201 TableItem row = cursor.getRow();
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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202 int column = cursor.getColumn();
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yidabu <yidabu@gmail.com>
parents:
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203 row.setText(column, text.getText());
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yidabu <yidabu@gmail.com>
parents:
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204 text.dispose();
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yidabu <yidabu@gmail.com>
parents:
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205 }
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yidabu <yidabu@gmail.com>
parents:
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206 // close the text editor when the user hits "ESC"
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yidabu <yidabu@gmail.com>
parents:
diff changeset
207 if (e.character == DWT.ESC) {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
208 text.dispose();
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yidabu <yidabu@gmail.com>
parents:
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209 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
210 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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211 });
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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212 // close the text editor when the user clicks away
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yidabu <yidabu@gmail.com>
parents:
diff changeset
213 text.addFocusListener(new class(text) FocusAdapter {
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yidabu <yidabu@gmail.com>
parents:
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214 Text text;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
215 this(Text text_)
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yidabu <yidabu@gmail.com>
parents:
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216 {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
217 text = text_;
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yidabu <yidabu@gmail.com>
parents:
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218 }
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yidabu <yidabu@gmail.com>
parents:
diff changeset
219 public void focusLost(FocusEvent e) {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
220 text.dispose();
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yidabu <yidabu@gmail.com>
parents:
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221 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
222 });
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
223 editor.setEditor(text);
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
224 text.setFocus();
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
225 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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226 });
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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227
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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228 // Show the TableCursor when the user releases the "SHIFT" or "CTRL" key.
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yidabu <yidabu@gmail.com>
parents:
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229 // This signals the end of the multiple selection task.
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yidabu <yidabu@gmail.com>
parents:
diff changeset
230 table.addKeyListener(new class(table, cursor) KeyAdapter {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
231 Table table;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
232 TableCursor cursor;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
233 this(Table table_, TableCursor cursor_)
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yidabu <yidabu@gmail.com>
parents:
diff changeset
234 {
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
235 table = table_;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
236 cursor = cursor_;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
237 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
238 public void keyReleased(KeyEvent e) {
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
239 if (e.keyCode == DWT.CONTROL && (e.stateMask & DWT.SHIFT) != 0)
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
240 return;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
241 if (e.keyCode == DWT.SHIFT && (e.stateMask & DWT.CONTROL) != 0)
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
242 return;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
243 if (e.keyCode != DWT.CONTROL
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
244 && (e.stateMask & DWT.CONTROL) != 0)
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
245 return;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
246 if (e.keyCode != DWT.SHIFT && (e.stateMask & DWT.SHIFT) != 0)
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
247 return;
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
248
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
249 TableItem[] selection = table.getSelection();
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
250 TableItem row = (selection.length == 0) ? table.getItem(table.getTopIndex()) : selection[0];
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yidabu <yidabu@gmail.com>
parents:
diff changeset
251 table.showItem(row);
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
252 cursor.setSelection(row, 0);
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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253 cursor.setVisible(true);
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yidabu <yidabu@gmail.com>
parents:
diff changeset
254 cursor.setFocus();
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yidabu <yidabu@gmail.com>
parents:
diff changeset
255 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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256 });
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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257
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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258 shell.open();
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yidabu <yidabu@gmail.com>
parents:
diff changeset
259 while (!shell.isDisposed()) {
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yidabu <yidabu@gmail.com>
parents:
diff changeset
260 if (!display.readAndDispatch())
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yidabu <yidabu@gmail.com>
parents:
diff changeset
261 display.sleep();
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
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262 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
263 display.dispose();
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yidabu <yidabu@gmail.com>
parents:
diff changeset
264 }
d06432c0c931 Snippet96, navigate a table cells with arrow keys
yidabu <yidabu@gmail.com>
parents:
diff changeset
265 }