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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // ${file_name} |
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15 // |
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16 // |
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17 |
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18 package com.symbian.smt.gui.smtwidgets; |
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19 |
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20 import org.eclipse.jface.dialogs.MessageDialog; |
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21 import org.eclipse.swt.SWT; |
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22 import org.eclipse.swt.events.KeyEvent; |
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23 import org.eclipse.swt.events.KeyListener; |
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24 import org.eclipse.swt.events.SelectionAdapter; |
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25 import org.eclipse.swt.events.SelectionEvent; |
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26 import org.eclipse.swt.layout.FillLayout; |
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27 import org.eclipse.swt.layout.GridData; |
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28 import org.eclipse.swt.layout.GridLayout; |
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29 import org.eclipse.swt.layout.RowData; |
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30 import org.eclipse.swt.layout.RowLayout; |
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31 import org.eclipse.swt.widgets.Button; |
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32 import org.eclipse.swt.widgets.Composite; |
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33 import org.eclipse.swt.widgets.Label; |
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34 import org.eclipse.swt.widgets.List; |
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35 import org.eclipse.swt.widgets.Text; |
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36 |
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37 public class FilterWidget extends Composite { |
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38 private Text text = null; |
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39 private List list; |
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40 private Button modifyButton; |
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41 |
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42 /** |
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43 * Creates a FilterWidget composite object |
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44 * |
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45 * @return void |
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46 */ |
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47 public FilterWidget(final Composite parent, int style) { |
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48 super(parent, style); |
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49 |
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50 this.setLayout(new FillLayout()); |
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51 |
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52 final Composite gridLayoutComposite = new Composite(this, SWT.NONE); |
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53 final GridLayout gridLayout = new GridLayout(); |
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54 gridLayout.numColumns = 2; |
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55 gridLayoutComposite.setLayout(gridLayout); |
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56 |
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57 list = new List(gridLayoutComposite, SWT.BORDER); |
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58 final GridData gd_list = new GridData(SWT.FILL, SWT.FILL, true, true, |
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59 2, 1); |
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60 gd_list.widthHint = 439; |
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61 list.setLayoutData(gd_list); |
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62 list.addSelectionListener(new SelectionAdapter() { |
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63 public void widgetSelected(final SelectionEvent e) { |
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64 int index = list.getSelectionIndex(); |
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65 |
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66 if (index != -1) { |
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67 String filterSelected = list.getItem(index); |
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68 text.setText(filterSelected); |
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69 text.setFocus(); |
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70 modifyButton.setEnabled(true); |
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71 } |
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72 } |
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73 }); |
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74 |
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75 final Label filterLabel = new Label(gridLayoutComposite, SWT.NONE); |
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76 filterLabel.setText("Filter"); |
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77 |
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78 text = new Text(gridLayoutComposite, SWT.BORDER); |
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79 text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false)); |
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80 text.setFocus(); |
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81 text.addKeyListener(new KeyListener() { |
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82 public void keyPressed(KeyEvent e) { |
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83 } |
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84 |
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85 public void keyReleased(KeyEvent e) { |
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86 if (text.getText().length() == 0) { |
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87 modifyButton.setEnabled(false); |
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88 } |
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89 } |
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90 }); |
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91 |
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92 final Composite buttonsComposite = new Composite(gridLayoutComposite, |
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93 SWT.NONE); |
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94 final RowLayout rowLayout = new RowLayout(); |
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95 rowLayout.spacing = 30; |
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96 rowLayout.justify = true; |
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97 buttonsComposite.setLayout(rowLayout); |
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98 final GridData gd_buttonsComposite = new GridData(SWT.CENTER, SWT.FILL, |
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99 true, false, 2, 1); |
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100 buttonsComposite.setLayoutData(gd_buttonsComposite); |
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101 |
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102 final Button addFilterButton = new Button(buttonsComposite, SWT.NONE); |
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103 final RowData rd_addFilterButton = new RowData(); |
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104 rd_addFilterButton.width = 75; |
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105 addFilterButton.setLayoutData(rd_addFilterButton); |
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106 addFilterButton.setText("Add"); |
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107 addFilterButton.addSelectionListener(new SelectionAdapter() { |
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108 public void widgetSelected(final SelectionEvent e) { |
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109 // Adds the text entered in the filter text to the list of |
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110 // filter items |
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111 String filter = text.getText().trim(); |
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112 |
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113 if (filter.length() > 0) { |
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114 // Check that text has been entered and that it does not |
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115 // already exist in the table |
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116 Boolean doesExistInList = false; |
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117 |
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118 for (String s : list.getItems()) { |
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119 if (s.equals(filter)) { |
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120 doesExistInList = true; |
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121 } |
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122 } |
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123 |
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124 if (!doesExistInList) { |
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125 // If it doesn't exist in the table then add it and |
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126 // clear the text box |
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127 list.add(filter); |
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128 text.setText(""); |
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129 modifyButton.setEnabled(false); |
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130 } else { |
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131 MessageDialog |
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132 .openError( |
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133 parent.getShell(), |
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134 "Error", |
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135 filter |
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136 + " already exists in the list of filters."); |
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137 } |
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138 } |
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139 |
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140 text.setFocus(); |
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141 } |
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142 }); |
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143 |
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144 final Button removeFilterButton = new Button(buttonsComposite, SWT.NONE); |
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145 final RowData rd_removeFilterButton = new RowData(); |
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146 rd_removeFilterButton.width = 75; |
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147 removeFilterButton.setLayoutData(rd_removeFilterButton); |
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148 removeFilterButton.setText("Remove"); |
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149 removeFilterButton.addSelectionListener(new SelectionAdapter() { |
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150 public void widgetSelected(SelectionEvent e) { |
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151 int listIndex = list.getSelectionIndex(); |
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152 |
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153 if (listIndex != -1) { |
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154 // If an item has been selected in the table then remove it |
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155 list.remove(listIndex); |
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156 text.setText(""); |
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157 modifyButton.setEnabled(false); |
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158 } else { |
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159 MessageDialog.openInformation(parent.getShell(), "Info", |
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160 "You need to select an item to remove."); |
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161 } |
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162 |
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163 text.setFocus(); |
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164 } |
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165 }); |
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166 |
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167 modifyButton = new Button(buttonsComposite, SWT.NONE); |
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168 final RowData rd_modifyButton = new RowData(); |
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169 rd_modifyButton.width = 75; |
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170 modifyButton.setLayoutData(rd_modifyButton); |
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171 modifyButton.setText("Modify"); |
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172 modifyButton.setEnabled(false); |
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173 modifyButton.addSelectionListener(new SelectionAdapter() { |
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174 public void widgetSelected(final SelectionEvent e) { |
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175 // Modifies a table entry in place |
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176 int index = list.getSelectionIndex(); |
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177 |
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178 String filter = text.getText().trim(); |
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179 |
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180 if (filter.length() > 0) { |
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181 // Check filter text has been entered |
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182 Boolean doesExistInList = false; |
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183 |
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184 for (String s : list.getItems()) { |
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185 // Check that the entry doesn't already exist in the |
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186 // table |
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187 if (s.equals(filter)) { |
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188 doesExistInList = true; |
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189 } |
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190 } |
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191 |
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192 if (!doesExistInList) { |
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193 // If it doesn't already exist in the table then add it |
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194 list.remove(index); |
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195 list.add(filter, index); |
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196 text.setText(""); |
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197 modifyButton.setEnabled(false); |
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198 } |
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199 } |
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200 |
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201 text.setFocus(); |
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202 } |
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203 }); |
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204 } |
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205 |
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206 /** |
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207 * Returns the filter items |
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208 * |
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209 * @return String[] |
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210 */ |
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211 public String[] getFilterItems() { |
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212 return list.getItems(); |
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213 } |
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214 |
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215 /** |
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216 * Sets the filter items |
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217 * |
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218 * @param filterItems |
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219 * A list containing filters. |
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220 * @return void |
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221 */ |
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222 public void setFilterItems(String[] filterItems) { |
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223 if (filterItems != null) |
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224 list.setItems(filterItems); |
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225 } |
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226 } |