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annotate dwt/widgets/MessageBox.d @ 0:380af2bdd8e5
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author | Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com> |
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date | Sat, 09 Aug 2008 17:00:02 +0200 |
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children | 649b8e223d5a |
rev | line source |
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0
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 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 *******************************************************************************/ |
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11 module dwt.widgets.MessageBox; |
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12 |
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13 import dwt.dwthelper.utils; |
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14 |
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15 |
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16 import dwt.DWT; |
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17 import dwt.DWTException; |
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18 import dwt.internal.cocoa.NSAlert; |
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19 import dwt.internal.cocoa.NSString; |
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20 import dwt.internal.cocoa.OS; |
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21 |
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22 /** |
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23 * Instances of this class are used to inform or warn the user. |
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24 * <dl> |
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25 * <dt><b>Styles:</b></dt> |
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26 * <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd> |
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27 * <dd>OK, OK | CANCEL</dd> |
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28 * <dd>YES | NO, YES | NO | CANCEL</dd> |
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29 * <dd>RETRY | CANCEL</dd> |
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30 * <dd>ABORT | RETRY | IGNORE</dd> |
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31 * <dt><b>Events:</b></dt> |
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32 * <dd>(none)</dd> |
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33 * </dl> |
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34 * <p> |
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35 * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, |
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36 * ICON_WARNING and ICON_WORKING may be specified. |
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37 * </p><p> |
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38 * IMPORTANT: This class is intended to be subclassed <em>only</em> |
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39 * within the DWT implementation. |
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40 * </p> |
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41 */ |
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42 public class MessageBox extends Dialog { |
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43 String message = ""; |
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44 |
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45 |
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46 /** |
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47 * Constructs a new instance of this class given only its parent. |
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48 * |
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49 * @param parent a shell which will be the parent of the new instance |
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50 * |
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51 * @exception IllegalArgumentException <ul> |
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52 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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53 * </ul> |
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54 * @exception DWTException <ul> |
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55 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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56 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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57 * </ul> |
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58 */ |
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59 public MessageBox (Shell parent) { |
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60 this (parent, DWT.OK | DWT.ICON_INFORMATION | DWT.APPLICATION_MODAL); |
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61 } |
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62 |
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63 /** |
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64 * Constructs a new instance of this class given its parent |
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65 * and a style value describing its behavior and appearance. |
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66 * <p> |
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67 * The style value is either one of the style constants defined in |
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68 * class <code>DWT</code> which is applicable to instances of this |
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69 * class, or must be built by <em>bitwise OR</em>'ing together |
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70 * (that is, using the <code>int</code> "|" operator) two or more |
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71 * of those <code>DWT</code> style constants. The class description |
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72 * lists the style constants that are applicable to the class. |
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73 * Style bits are also inherited from superclasses. |
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74 * |
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75 * @param parent a shell which will be the parent of the new instance |
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76 * @param style the style of dialog to construct |
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77 * |
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78 * @exception IllegalArgumentException <ul> |
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79 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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80 * </ul> |
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81 * @exception DWTException <ul> |
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82 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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83 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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84 * </ul> |
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85 */ |
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86 public MessageBox (Shell parent, int style) { |
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87 super (parent, checkStyle (style)); |
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88 checkSubclass (); |
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89 } |
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90 |
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91 static int checkStyle (int style) { |
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92 if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) is 0) style |= DWT.APPLICATION_MODAL; |
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93 int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE); |
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94 int bits = style & mask; |
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95 if (bits is DWT.OK || bits is DWT.CANCEL || bits is (DWT.OK | DWT.CANCEL)) return style; |
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96 if (bits is DWT.YES || bits is DWT.NO || bits is (DWT.YES | DWT.NO) || bits is (DWT.YES | DWT.NO | DWT.CANCEL)) return style; |
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97 if (bits is (DWT.RETRY | DWT.CANCEL) || bits is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) return style; |
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98 style = (style & ~mask) | DWT.OK; |
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99 return style; |
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100 } |
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101 |
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102 /** |
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103 * Returns the dialog's message, or an empty string if it does not have one. |
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104 * The message is a description of the purpose for which the dialog was opened. |
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105 * This message will be visible in the dialog while it is open. |
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106 * |
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107 * @return the message |
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108 */ |
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109 public String getMessage () { |
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110 return message; |
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111 } |
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112 |
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113 /** |
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114 * Makes the dialog visible and brings it to the front |
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115 * of the display. |
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116 * |
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117 * @return the ID of the button that was selected to dismiss the |
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118 * message box (e.g. DWT.OK, DWT.CANCEL, etc.) |
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119 * |
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120 * @exception DWTException <ul> |
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121 * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> |
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122 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> |
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123 * </ul> |
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124 */ |
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125 public int open () { |
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126 int alertType = OS.NSInformationalAlertStyle; |
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127 if ((style & DWT.ICON_ERROR) !is 0) alertType = OS.NSCriticalAlertStyle; |
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128 if ((style & DWT.ICON_INFORMATION) !is 0) alertType = OS.NSInformationalAlertStyle; |
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129 if ((style & DWT.ICON_QUESTION) !is 0) alertType = OS.NSInformationalAlertStyle; |
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130 if ((style & DWT.ICON_WARNING) !is 0) alertType = OS.NSWarningAlertStyle; |
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131 if ((style & DWT.ICON_WORKING) !is 0) alertType = OS.NSInformationalAlertStyle; |
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132 NSString defaultButton = null, alternateButton = null, otherButton = null; |
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133 int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE); |
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134 int bits = style & mask; |
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135 switch (bits) { |
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136 case DWT.OK: |
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137 break; |
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138 case DWT.CANCEL: |
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139 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Cancel")); |
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140 break; |
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141 case DWT.OK | DWT.CANCEL: |
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142 alternateButton = NSString.stringWith(DWT.getMessage("SWT_Cancel")); |
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143 break; |
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144 case DWT.YES: |
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145 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes")); |
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146 break; |
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147 case DWT.NO: |
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148 defaultButton = NSString.stringWith(DWT.getMessage("SWT_No")); |
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149 break; |
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150 case DWT.YES | DWT.NO: |
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151 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes")); |
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152 alternateButton = NSString.stringWith(DWT.getMessage("SWT_No")); |
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153 break; |
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154 case DWT.YES | DWT.NO | DWT.CANCEL: |
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155 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes")); |
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156 alternateButton = NSString.stringWith(DWT.getMessage("SWT_No")); |
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157 otherButton = NSString.stringWith(DWT.getMessage("SWT_Cancel")); |
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158 break; |
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159 case DWT.RETRY | DWT.CANCEL: |
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160 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Retry")); |
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161 alternateButton = NSString.stringWith(DWT.getMessage("SWT_Cancel")); |
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162 break; |
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163 case DWT.ABORT | DWT.RETRY | DWT.IGNORE: |
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164 defaultButton = NSString.stringWith(DWT.getMessage("SWT_Abort")); |
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165 alternateButton = NSString.stringWith(DWT.getMessage("SWT_Retry")); |
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166 otherButton = NSString.stringWith(DWT.getMessage("SWT_Ignore")); |
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167 break; |
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168 } |
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169 NSString title = NSString.stringWith(this.title !is null ? this.title : ""); |
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170 NSString message = NSString.stringWith(this.message !is null ? this.message : ""); |
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171 NSAlert alert = NSAlert.alertWithMessageText(title, defaultButton, alternateButton, otherButton, message); |
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172 alert.setAlertStyle(alertType); |
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173 int response = alert.runModal(); |
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174 switch (bits) { |
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175 case DWT.OK: |
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176 switch (response) { |
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177 case OS.NSAlertDefaultReturn: |
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178 return DWT.OK; |
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179 } |
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180 break; |
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181 case DWT.CANCEL: |
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182 switch (response) { |
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183 case OS.NSAlertDefaultReturn: |
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184 return DWT.CANCEL; |
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185 } |
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186 break; |
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187 case DWT.OK | DWT.CANCEL: |
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188 switch (response) { |
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189 case OS.NSAlertDefaultReturn: |
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190 return DWT.OK; |
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191 case OS.NSAlertAlternateReturn: |
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192 return DWT.CANCEL; |
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193 } |
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194 break; |
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195 case DWT.YES: |
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196 switch (response) { |
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197 case OS.NSAlertDefaultReturn: |
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198 return DWT.YES; |
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199 } |
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200 break; |
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201 case DWT.NO: |
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202 switch (response) { |
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203 case OS.NSAlertDefaultReturn: |
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204 return DWT.NO; |
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205 } |
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206 break; |
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207 case DWT.YES | DWT.NO: |
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208 switch (response) { |
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209 case OS.NSAlertDefaultReturn: |
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210 return DWT.YES; |
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211 case OS.NSAlertAlternateReturn: |
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212 return DWT.NO; |
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213 } |
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214 break; |
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215 case DWT.YES | DWT.NO | DWT.CANCEL: |
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216 switch (response) { |
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217 case OS.NSAlertDefaultReturn: |
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218 return DWT.YES; |
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219 case OS.NSAlertAlternateReturn: |
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220 return DWT.NO; |
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221 case OS.NSAlertOtherReturn: |
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222 return DWT.CANCEL; |
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223 } |
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224 break; |
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225 case DWT.RETRY | DWT.CANCEL: |
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226 switch (response) { |
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227 case OS.NSAlertDefaultReturn: |
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228 return DWT.RETRY; |
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229 case OS.NSAlertAlternateReturn: |
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230 return DWT.CANCEL; |
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231 } |
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232 break; |
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233 case DWT.ABORT | DWT.RETRY | DWT.IGNORE: |
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234 switch (response) { |
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235 case OS.NSAlertDefaultReturn: |
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236 return DWT.ABORT; |
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237 case OS.NSAlertAlternateReturn: |
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238 return DWT.RETRY; |
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239 case OS.NSAlertOtherReturn: |
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240 return DWT.IGNORE; |
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241 } |
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242 break; |
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243 } |
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244 return DWT.CANCEL; |
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245 } |
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246 |
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247 /** |
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248 * Sets the dialog's message, which is a description of |
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249 * the purpose for which it was opened. This message will be |
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250 * visible on the dialog while it is open. |
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251 * |
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252 * @param string the message |
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253 * |
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254 * @exception IllegalArgumentException <ul> |
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255 * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
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256 * </ul> |
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257 */ |
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258 public void setMessage (String string) { |
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259 if (string is null) error (DWT.ERROR_NULL_ARGUMENT); |
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260 message = string; |
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261 } |
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262 |
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263 } |