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1 /* |
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2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 * Composite for ID label, field and hex checkbox |
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17 * |
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18 */ |
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19 package com.nokia.tracebuilder.view; |
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20 |
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21 import org.eclipse.swt.SWT; |
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22 import org.eclipse.swt.events.ModifyEvent; |
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23 import org.eclipse.swt.events.ModifyListener; |
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24 import org.eclipse.swt.events.SelectionEvent; |
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25 import org.eclipse.swt.events.SelectionListener; |
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26 import org.eclipse.swt.widgets.Button; |
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27 import org.eclipse.swt.widgets.Composite; |
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28 import org.eclipse.swt.widgets.Label; |
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29 import org.eclipse.swt.widgets.Text; |
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30 |
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31 import com.nokia.tracebuilder.engine.TraceBuilderGlobals; |
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32 import com.nokia.tracebuilder.engine.TraceObjectPropertyDialog; |
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33 |
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34 /** |
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35 * Composite for ID label, field and hex checkbox |
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36 * |
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37 */ |
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38 class PropertyDialogUIID extends PropertyDialogComposite { |
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39 |
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40 /** |
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41 * Configuration name for hex checkbox state |
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42 */ |
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43 private static final String HEX_CHECK_CONFIG = "PropertyDialogUIID.hexCheck"; //$NON-NLS-1$ |
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44 |
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45 /** |
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46 * Hex checkbox listener |
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47 * |
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48 */ |
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49 private final class HexCheckSelectionListener implements SelectionListener { |
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50 |
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51 /* |
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52 * (non-Javadoc) |
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53 * |
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54 * @see org.eclipse.swt.events.SelectionListener# |
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55 * widgetDefaultSelected(org.eclipse.swt.events.SelectionEvent) |
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56 */ |
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57 public void widgetDefaultSelected(SelectionEvent e) { |
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58 widgetSelected(e); |
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59 } |
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60 |
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61 /* |
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62 * (non-Javadoc) |
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63 * |
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64 * @see org.eclipse.swt.events.SelectionListener# |
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65 * widgetSelected(org.eclipse.swt.events.SelectionEvent) |
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66 */ |
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67 public void widgetSelected(SelectionEvent e) { |
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68 try { |
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69 TraceBuilderGlobals.getConfiguration().setFlag( |
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70 HEX_CHECK_CONFIG, hexCheck.getSelection()); |
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71 // Converts the ID field to new format. The old value of the |
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72 // hex checkbox is used, since that represents the value |
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73 // before the checkbox was changed |
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74 setID(idFromString(idField.getText(), !hexCheck.getSelection())); |
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75 } catch (NumberFormatException ex) { |
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76 } |
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77 } |
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78 } |
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79 |
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80 /** |
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81 * Modification listener for the ID field |
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82 * |
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83 */ |
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84 private final class IDFieldModifyListener implements ModifyListener { |
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85 |
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86 /* |
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87 * (non-Javadoc) |
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88 * |
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89 * @see org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events.ModifyEvent) |
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90 */ |
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91 public void modifyText(ModifyEvent e) { |
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92 // If the hex field is not checked, a hex character checks it |
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93 if (!hexCheck.getSelection()) { |
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94 String text = idField.getText(); |
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95 if (hasHexPrefix(text) || hasHexChars(text)) { |
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96 hexCheck.setSelection(true); |
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97 } |
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98 } |
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99 } |
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100 } |
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101 |
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102 /** |
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103 * Radix for hex values |
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104 */ |
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105 private static final int HEX_RADIX = 16; // CodForChk_Dis_Magic |
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106 |
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107 /** |
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108 * ID label |
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109 */ |
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110 private Label idLabel; |
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111 |
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112 /** |
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113 * ID field is mapped to trace object ID. |
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114 * |
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115 * @see com.nokia.tracebuilder.model.TraceObject#setID(int) |
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116 */ |
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117 private Text idField; |
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118 |
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119 /** |
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120 * Hex ID checkbox |
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121 */ |
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122 private Button hexCheck; |
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123 |
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124 /** |
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125 * Constructor |
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126 * |
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127 * @param parent |
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128 * parent composite |
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129 * @param uiType |
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130 * type of UI |
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131 * @param modifyListener |
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132 * the modify listener for ID field |
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133 */ |
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134 PropertyDialogUIID(Composite parent, int uiType, |
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135 ModifyListener modifyListener) { |
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136 super(parent); |
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137 create(uiType, modifyListener); |
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138 } |
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139 |
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140 /** |
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141 * Creates the ID text field and associated label |
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142 * |
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143 * @param uiType |
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144 * the UI type |
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145 * @param modifyListener |
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146 * listener for text field changes |
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147 */ |
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148 private void create(int uiType, ModifyListener modifyListener) { |
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149 // Label is added to this composite |
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150 idLabel = new Label(getParent(), SWT.NONE); |
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151 idLabel.setText(getIDLabel(uiType)); |
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152 // Field and button are added to sub-composite |
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153 Composite composite = createFieldButtonComposite(); |
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154 idField = new Text(composite, SWT.BORDER); |
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155 idField.addModifyListener(modifyListener); |
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156 idField.addModifyListener(new IDFieldModifyListener()); |
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157 hexCheck = new Button(composite, SWT.CHECK); |
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158 hexCheck.setSelection(TraceBuilderGlobals.getConfiguration().getFlag( |
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159 HEX_CHECK_CONFIG)); |
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160 hexCheck.setText(Messages.getString("PropertyDialogUI.HexButtonTitle")); //$NON-NLS-1$ |
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161 hexCheck.addSelectionListener(new HexCheckSelectionListener()); |
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162 setFieldButtonLayoutData(idField, hexCheck); |
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163 } |
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164 |
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165 /** |
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166 * Gets the label for ID field |
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167 * |
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168 * @param uiType |
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169 * the UI type |
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170 * @return the label |
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171 */ |
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172 private String getIDLabel(int uiType) { |
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173 String id; |
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174 switch (uiType) { |
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175 case TraceObjectPropertyDialog.ADD_CONSTANT: |
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176 id = Messages.getString("PropertyDialogUI.AddConstantIDLabel"); //$NON-NLS-1$ |
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177 break; |
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178 case TraceObjectPropertyDialog.EDIT_CONSTANT: |
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179 id = Messages.getString("PropertyDialogUI.EditConstantIDLabel"); //$NON-NLS-1$ |
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180 break; |
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181 default: |
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182 id = ""; //$NON-NLS-1$ |
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183 break; |
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184 } |
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185 return id; |
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186 } |
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187 |
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188 /** |
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189 * Checks if given string has hex characters |
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190 * |
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191 * @param text |
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192 * the text |
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193 * @return true if there are hex characters |
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194 */ |
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195 private boolean hasHexChars(String text) { |
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196 boolean isHex = false; |
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197 for (int i = 0; i < text.length() && !isHex; i++) { |
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198 char c = text.charAt(i); |
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199 if (c == 'a' || c == 'b' || c == 'c' || c == 'd' || c == 'e' |
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200 || c == 'f' || c == 'A' || c == 'B' || c == 'C' || c == 'D' |
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201 || c == 'E' || c == 'F') { |
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202 isHex = true; |
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203 } |
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204 } |
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205 return isHex; |
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206 } |
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207 |
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208 /** |
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209 * Checks if the text has hex prefix |
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210 * |
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211 * @param text |
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212 * the text |
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213 * @return true if there is hex prefix |
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214 */ |
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215 private boolean hasHexPrefix(String text) { |
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216 boolean isHex = false; |
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217 String pref = Messages.getString("PropertyDialogUI.HexPrefix"); //$NON-NLS-1$ |
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218 if (text.length() > pref.length()) { |
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219 if (text.substring(0, pref.length()).equalsIgnoreCase(pref)) { |
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220 isHex = true; |
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221 } |
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222 } |
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223 return isHex; |
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224 } |
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225 |
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226 /** |
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227 * Tries to convert an ID string to number |
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228 * |
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229 * @param text |
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230 * the ID string |
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231 * @param isHex |
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232 * true if interpreted as hex |
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233 * @return the ID |
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234 * @throws NumberFormatException |
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235 * if ID is not valid |
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236 */ |
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237 int idFromString(String text, boolean isHex) throws NumberFormatException { |
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238 if (!isHex) { |
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239 // If hex checkbox is not selected, the content is still checked |
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240 // If there is hex prefix or hex characters, it is interpreted as |
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241 // hex |
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242 isHex = hasHexPrefix(text); |
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243 if (!isHex) { |
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244 isHex = hasHexChars(text); |
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245 } else { |
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246 text = text.substring(Messages.getString( |
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247 "PropertyDialogUI.HexPrefix").length()); //$NON-NLS-1$ |
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248 } |
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249 } else { |
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250 // If checkbox is selected, the prefix needs to be removed if |
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251 // it exists |
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252 if (hasHexPrefix(text)) { |
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253 text = text.substring(Messages.getString( |
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254 "PropertyDialogUI.HexPrefix").length()); //$NON-NLS-1$ |
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255 } |
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256 } |
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257 int id; |
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258 if (isHex) { |
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259 id = Long.valueOf(text, HEX_RADIX).intValue(); |
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260 } else { |
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261 id = Integer.valueOf(text).intValue(); |
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262 } |
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263 return id; |
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264 } |
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265 |
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266 /** |
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267 * Sets the ID field value |
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268 * |
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269 * @param id |
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270 * the new ID value |
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271 */ |
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272 void setID(int id) { |
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273 if (hexCheck.getSelection()) { |
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274 idField.setText(Messages.getString("PropertyDialogUI.HexPrefix") //$NON-NLS-1$ |
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275 + Integer.toHexString(id)); |
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276 } else { |
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277 idField.setText(Integer.toString(id)); |
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278 } |
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279 } |
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280 |
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281 /** |
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282 * Returns the value from the ID field. Throws NumberFormatException if the |
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283 * ID field does not contain a number |
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284 * |
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285 * @return id field value |
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286 * @throws NumberFormatException |
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287 * if the ID field does not contain valid data |
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288 */ |
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289 int getID() throws NumberFormatException { |
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290 return idFromString(idField.getText(), hexCheck.getSelection()); |
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291 } |
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292 |
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293 /** |
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294 * Enables or disables the ID field and hex button |
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295 * |
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296 * @param flag |
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297 * the enabled flag |
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298 */ |
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299 void setEnabled(boolean flag) { |
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300 idField.setEnabled(flag); |
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301 hexCheck.setEnabled(flag); |
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302 } |
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303 |
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304 } |