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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2004 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * D Port:
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11 * Thomas Demmer <t_demmer AT web DOT de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.snippets.Snippet162;
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14
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15 /*
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16 * Adding an accessible listener to provide state information
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17 *
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18 * For a list of all SWT example snippets see
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19 * http://www.eclipse.org/swt/snippets/
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20 */
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21 import org.eclipse.swt.SWT;
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22 import org.eclipse.swt.accessibility.ACC;
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23 import org.eclipse.swt.accessibility.Accessible;
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24 import org.eclipse.swt.accessibility.AccessibleAdapter;
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25 import org.eclipse.swt.accessibility.AccessibleControlListener;
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26 import org.eclipse.swt.accessibility.AccessibleControlAdapter;
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27 import org.eclipse.swt.accessibility.AccessibleControlEvent;
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28 import org.eclipse.swt.accessibility.AccessibleEvent;
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29 import org.eclipse.swt.graphics.GC;
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30 import org.eclipse.swt.graphics.Image;
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31 import org.eclipse.swt.graphics.Point;
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32
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33 import org.eclipse.swt.layout.FillLayout;
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34 import org.eclipse.swt.widgets.Display;
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35 import org.eclipse.swt.widgets.Shell;
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36 import org.eclipse.swt.widgets.Table;
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37 import org.eclipse.swt.widgets.TableColumn;
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38 import org.eclipse.swt.widgets.TableItem;
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39
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40 import java.lang.all;
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41
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42
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43 void main(String[] args){
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44 Snippet162.main(args);
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45 }
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46
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47 public class Snippet162 {
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48
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49 final static String STATE = "CheckedIndices";
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50
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51 public static void main (String [] args) {
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52 final Display display = new Display ();
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53 Image checkedImage = getCheckedImage (display);
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54 Image uncheckedImage = getUncheckedImage (display);
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55 Shell shell = new Shell (display);
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56 shell.setLayout (new FillLayout ());
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57 final Table table = new Table (shell, SWT.BORDER);
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58 TableColumn column1 = new TableColumn (table, SWT.NONE);
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59 TableColumn column2 = new TableColumn (table, SWT.NONE);
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60 TableColumn column3 = new TableColumn (table, SWT.NONE);
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61 TableItem item1 = new TableItem (table, SWT.NONE);
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62 item1.setText ( ["first item", "a", "b"]);
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63 item1.setImage (1, uncheckedImage);
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64 item1.setImage (2, uncheckedImage);
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65 item1.setData (STATE, null);
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66 TableItem item2 = new TableItem (table, SWT.NONE);
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67 item2.setText ( ["second item", "c", "d"]);
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68 item2.setImage (1, uncheckedImage);
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69 item2.setImage (2, checkedImage);
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70 item2.setData (STATE, new ArrayWrapperInt([2]));
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71 TableItem item3 = new TableItem (table, SWT.NONE);
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72 item3.setText ( ["third", "e", "f"]);
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73 item3.setImage (1, checkedImage);
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74 item3.setImage (2, checkedImage);
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75 item3.setData (STATE, new ArrayWrapperInt( [1, 2]));
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76 column1.pack ();
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77 column2.pack ();
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78 column3.pack ();
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79
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80 Accessible accessible = table.getAccessible ();
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81 accessible.addAccessibleListener( new class() AccessibleAdapter {
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82 public void getName (AccessibleEvent e) {
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83 super.getName (e);
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84 if (e.childID >= 0 && e.childID < table.getItemCount ()) {
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85 TableItem item = table.getItem (e.childID);
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86 Point pt = display.getCursorLocation ();
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87 pt = display.map (null, table, pt);
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88 for (int i = 0; i < table.getColumnCount (); i++) {
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89 if (item.getBounds (i).contains (pt)) {
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90 int [] data = (cast(ArrayWrapperInt)item.getData (STATE)).array;
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91 bool checked = false;
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92 if (data !is null) {
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93 for (int j = 0; j < data.length; j++) {
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94 if (data [j] == i) {
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95 checked = true;
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96 break;
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97 }
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98 }
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99 }
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100 e.result = item.getText (i) ~ " " ~ (checked ? "checked" : "unchecked");
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101 break;
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102 }
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103 }
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104 }
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105 }
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106 });
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107
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108 accessible.addAccessibleControlListener (new class() AccessibleControlAdapter {
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109 public void getState (AccessibleControlEvent e) {
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110 super.getState (e);
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111 if (e.childID >= 0 && e.childID < table.getItemCount ()) {
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112 TableItem item = table.getItem (e.childID);
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113 int [] data =(cast(ArrayWrapperInt)item.getData (STATE)).array;
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114 if (data !is null) {
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115 Point pt = display.getCursorLocation ();
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116 pt = display.map (null, table, pt);
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117 for (int i = 0; i < data.length; i++) {
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118 if (item.getBounds (data [i]).contains (pt)) {
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119 e.detail |= ACC.STATE_CHECKED;
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120 break;
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121 }
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122 }
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123 }
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124 }
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125 }
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126 });
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127 shell.open ();
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128 while (!shell.isDisposed ()) {
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129 if (!display.readAndDispatch ()) display.sleep ();
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130 }
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131 checkedImage.dispose ();
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132 uncheckedImage.dispose ();
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133 display.dispose ();
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134 }
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135
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136 static Image getCheckedImage (Display display) {
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137 Image image = new Image (display, 16, 16);
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138 GC gc = new GC (image);
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139 gc.setBackground (display.getSystemColor (SWT.COLOR_YELLOW));
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140 gc.fillOval (0, 0, 16, 16);
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141 gc.setForeground (display.getSystemColor (SWT.COLOR_DARK_GREEN));
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142 gc.drawLine (0, 0, 16, 16);
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143 gc.drawLine (16, 0, 0, 16);
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144 gc.dispose ();
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145 return image;
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146 }
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147
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148 static Image getUncheckedImage (Display display) {
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149 Image image = new Image (display, 16, 16);
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150 GC gc = new GC (image);
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151 gc.setBackground (display.getSystemColor (SWT.COLOR_YELLOW));
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152 gc.fillOval (0, 0, 16, 16);
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153 gc.dispose ();
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154 return image;
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155 }
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156 }
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