Mercurial > projects > dwt2
annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/widgets/MessageBox.d @ 38:2e09b0e6857a
work on phobosfication
author | Frank Benoit <benoit@tionex.de> |
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date | Wed, 25 Mar 2009 11:18:25 +0100 |
parents | 6dd524f61e62 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2008 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 * Port to the D programming language: |
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11 * Frank Benoit <benoit@tionex.de> |
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12 *******************************************************************************/ |
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13 module org.eclipse.swt.widgets.MessageBox; |
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14 |
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15 import org.eclipse.swt.SWT; |
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16 import org.eclipse.swt.SWTException; |
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17 import org.eclipse.swt.internal.win32.OS; |
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18 |
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19 import org.eclipse.swt.widgets.Dialog; |
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20 import org.eclipse.swt.widgets.Shell; |
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21 import org.eclipse.swt.widgets.Display; |
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22 import java.lang.all; |
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23 |
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24 /** |
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25 * Instances of this class are used to inform or warn the user. |
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26 * <dl> |
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27 * <dt><b>Styles:</b></dt> |
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28 * <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd> |
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29 * <dd>OK, OK | CANCEL</dd> |
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30 * <dd>YES | NO, YES | NO | CANCEL</dd> |
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31 * <dd>RETRY | CANCEL</dd> |
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32 * <dd>ABORT | RETRY | IGNORE</dd> |
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33 * <dt><b>Events:</b></dt> |
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34 * <dd>(none)</dd> |
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35 * </dl> |
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36 * <p> |
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37 * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, |
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38 * ICON_WARNING and ICON_WORKING may be specified. |
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39 * </p><p> |
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40 * IMPORTANT: This class is intended to be subclassed <em>only</em> |
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41 * within the SWT implementation. |
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42 * </p> |
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43 * |
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44 * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> |
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45 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
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46 */ |
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47 public class MessageBox : Dialog { |
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48 |
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49 alias Dialog.checkStyle checkStyle; |
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50 |
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51 String message = ""; |
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52 private bool allowNullParent = false; |
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53 |
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54 /** |
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55 * Constructs a new instance of this class given only its parent. |
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56 * |
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57 * @param parent a shell which will be the parent of the new instance |
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58 * |
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59 * @exception IllegalArgumentException <ul> |
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60 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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61 * </ul> |
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62 * @exception SWTException <ul> |
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63 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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64 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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65 * </ul> |
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66 */ |
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67 public this (Shell parent) { |
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68 this (parent, SWT.OK | SWT.ICON_INFORMATION | SWT.APPLICATION_MODAL); |
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69 } |
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70 |
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71 /** |
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72 * Constructs a new instance of this class given its parent |
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73 * and a style value describing its behavior and appearance. |
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74 * <p> |
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75 * The style value is either one of the style constants defined in |
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76 * class <code>SWT</code> which is applicable to instances of this |
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77 * class, or must be built by <em>bitwise OR</em>'ing together |
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78 * (that is, using the <code>int</code> "|" operator) two or more |
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79 * of those <code>SWT</code> style constants. The class description |
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80 * lists the style constants that are applicable to the class. |
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81 * Style bits are also inherited from superclasses. |
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82 * |
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83 * @param parent a shell which will be the parent of the new instance |
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84 * @param style the style of dialog to construct |
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85 * |
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86 * @exception IllegalArgumentException <ul> |
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87 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
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88 * </ul> |
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89 * @exception SWTException <ul> |
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90 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
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91 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
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92 * </ul> |
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93 */ |
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94 public this (Shell parent, int style) { |
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95 super (parent, checkStyle (parent, checkStyle (style))); |
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96 checkSubclass (); |
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97 } |
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98 |
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99 /++ |
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100 + SWT extension, a MessageBox with no parent |
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101 +/ |
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102 public this (int style) { |
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103 allowNullParent = true; |
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104 this( null, style ); |
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105 } |
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106 // PORT |
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107 // actually, the parent can be null |
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108 override void checkParent (Shell parent){ |
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109 if( !allowNullParent ){ |
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110 super.checkParent( parent ); |
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111 } |
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112 } |
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113 |
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114 static int checkStyle (int style) { |
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115 int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE); |
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116 int bits = style & mask; |
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117 if (bits is SWT.OK || bits is SWT.CANCEL || bits is (SWT.OK | SWT.CANCEL)) return style; |
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118 if (bits is SWT.YES || bits is SWT.NO || bits is (SWT.YES | SWT.NO) || bits is (SWT.YES | SWT.NO | SWT.CANCEL)) return style; |
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119 if (bits is (SWT.RETRY | SWT.CANCEL) || bits is (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) return style; |
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120 style = (style & ~mask) | SWT.OK; |
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121 return style; |
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122 } |
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123 |
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124 /** |
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125 * Returns the dialog's message, or an empty string if it does not have one. |
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126 * The message is a description of the purpose for which the dialog was opened. |
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127 * This message will be visible in the dialog while it is open. |
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128 * |
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129 * @return the message |
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130 */ |
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131 public String getMessage () { |
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132 return message; |
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133 } |
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134 |
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135 /** |
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136 * Makes the dialog visible and brings it to the front |
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137 * of the display. |
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138 * |
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139 * @return the ID of the button that was selected to dismiss the |
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140 * message box (e.g. SWT.OK, SWT.CANCEL, etc.) |
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141 * |
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142 * @exception SWTException <ul> |
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143 * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li> |
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144 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li> |
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145 * </ul> |
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146 */ |
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147 public int open () { |
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148 |
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149 /* Compute the MessageBox style */ |
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150 int buttonBits = 0; |
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151 if ((style & SWT.OK) is SWT.OK) buttonBits = OS.MB_OK; |
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152 if ((style & (SWT.OK | SWT.CANCEL)) is (SWT.OK | SWT.CANCEL)) buttonBits = OS.MB_OKCANCEL; |
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153 if ((style & (SWT.YES | SWT.NO)) is (SWT.YES | SWT.NO)) buttonBits = OS.MB_YESNO; |
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154 if ((style & (SWT.YES | SWT.NO | SWT.CANCEL)) is (SWT.YES | SWT.NO | SWT.CANCEL)) buttonBits = OS.MB_YESNOCANCEL; |
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155 if ((style & (SWT.RETRY | SWT.CANCEL)) is (SWT.RETRY | SWT.CANCEL)) buttonBits = OS.MB_RETRYCANCEL; |
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156 if ((style & (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) is (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) buttonBits = OS.MB_ABORTRETRYIGNORE; |
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157 if (buttonBits is 0) buttonBits = OS.MB_OK; |
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158 |
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159 int iconBits = 0; |
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160 if ((style & SWT.ICON_ERROR) !is 0) iconBits = OS.MB_ICONERROR; |
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161 if ((style & SWT.ICON_INFORMATION) !is 0) iconBits = OS.MB_ICONINFORMATION; |
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162 if ((style & SWT.ICON_QUESTION) !is 0) iconBits = OS.MB_ICONQUESTION; |
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163 if ((style & SWT.ICON_WARNING) !is 0) iconBits = OS.MB_ICONWARNING; |
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164 if ((style & SWT.ICON_WORKING) !is 0) iconBits = OS.MB_ICONINFORMATION; |
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165 |
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166 /* Only MB_APPLMODAL is supported on WinCE */ |
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167 int modalBits = 0; |
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168 static if (OS.IsWinCE) { |
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169 if ((style & (SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL)) !is 0) { |
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170 modalBits = OS.MB_APPLMODAL; |
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171 } |
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172 } else { |
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173 if ((style & SWT.PRIMARY_MODAL) !is 0) modalBits = OS.MB_APPLMODAL; |
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174 if ((style & SWT.APPLICATION_MODAL) !is 0) modalBits = OS.MB_TASKMODAL; |
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175 if ((style & SWT.SYSTEM_MODAL) !is 0) modalBits = OS.MB_SYSTEMMODAL; |
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176 } |
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177 |
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178 int bits = buttonBits | iconBits | modalBits; |
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179 if ((style & SWT.RIGHT_TO_LEFT) !is 0) bits |= OS.MB_RTLREADING | OS.MB_RIGHT; |
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180 if ((style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT)) is 0) { |
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181 if (parent !is null && (parent.style & SWT.MIRRORED) !is 0) { |
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182 bits |= OS.MB_RTLREADING | OS.MB_RIGHT; |
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183 } |
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184 } |
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185 |
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186 /* |
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187 * Feature in Windows. System modal is not supported |
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188 * on Windows 95 and NT. The fix is to convert system |
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189 * modal to task modal. |
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190 */ |
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191 if ((bits & OS.MB_SYSTEMMODAL) !is 0) { |
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192 bits |= OS.MB_TASKMODAL; |
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193 bits &= ~OS.MB_SYSTEMMODAL; |
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194 /* Force a system modal message box to the front */ |
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195 bits |= OS.MB_TOPMOST; |
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196 } |
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197 |
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198 /* |
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199 * Feature in Windows. In order for MB_TASKMODAL to work, |
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200 * the parent HWND of the MessageBox () call must be NULL. |
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201 * If the parent is not NULL, MB_TASKMODAL behaves the |
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202 * same as MB_APPLMODAL. The fix to set the parent HWND |
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203 * anyway and not rely on MB_MODAL to work by making the |
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204 * parent be temporarily modal. |
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205 */ |
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206 HWND hwndOwner = parent !is null ? parent.handle : null; |
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207 Dialog oldModal = null; |
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208 Display display = null; |
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209 if ((bits & OS.MB_TASKMODAL) !is 0) { |
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210 display = ( allowNullParent && parent is null ) ? Display.getCurrent() : parent.getDisplay (); |
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211 oldModal = display.getModalDialog (); |
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212 display.setModalDialog (this); |
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213 } |
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214 |
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215 /* Open the message box */ |
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216 /* Use the character encoding for the default locale */ |
38 | 217 StringT buffer1 = StrToTCHARs (0, message, true); |
218 StringT buffer2 = StrToTCHARs (0, title, true); | |
0
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219 int code = OS.MessageBox (hwndOwner, buffer1.ptr, buffer2.ptr, bits); |
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220 |
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221 /* Clear the temporarily dialog modal parent */ |
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222 if ((bits & OS.MB_TASKMODAL) !is 0) { |
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223 display.setModalDialog (oldModal); |
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224 } |
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225 |
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226 /* |
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227 * This code is intentionally commented. On some |
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228 * platforms, the owner window is repainted right |
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229 * away when a dialog window exits. This behavior |
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230 * is currently unspecified. |
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231 */ |
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232 // if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner); |
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233 |
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234 /* Compute and return the result */ |
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235 if (code !is 0) { |
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236 int type = bits & 0x0F; |
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237 if (type is OS.MB_OK) return SWT.OK; |
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238 if (type is OS.MB_OKCANCEL) { |
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239 return (code is OS.IDOK) ? SWT.OK : SWT.CANCEL; |
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240 } |
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241 if (type is OS.MB_YESNO) { |
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242 return (code is OS.IDYES) ? SWT.YES : SWT.NO; |
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243 } |
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244 if (type is OS.MB_YESNOCANCEL) { |
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245 if (code is OS.IDYES) return SWT.YES; |
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246 if (code is OS.IDNO) return SWT.NO; |
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247 return SWT.CANCEL; |
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248 } |
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249 if (type is OS.MB_RETRYCANCEL) { |
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250 return (code is OS.IDRETRY) ? SWT.RETRY : SWT.CANCEL; |
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251 } |
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252 if (type is OS.MB_ABORTRETRYIGNORE) { |
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253 if (code is OS.IDRETRY) return SWT.RETRY; |
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254 if (code is OS.IDABORT) return SWT.ABORT; |
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255 return SWT.IGNORE; |
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256 } |
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257 } |
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258 return SWT.CANCEL; |
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259 } |
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260 |
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261 /** |
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262 * Sets the dialog's message, which is a description of |
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263 * the purpose for which it was opened. This message will be |
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264 * visible on the dialog while it is open. |
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265 * |
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266 * @param string the message |
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267 * |
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268 * @exception IllegalArgumentException <ul> |
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269 * <li>ERROR_NULL_ARGUMENT - if the string is null</li> |
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270 * </ul> |
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271 */ |
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272 public void setMessage (String string) { |
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273 if (string is null) error (SWT.ERROR_NULL_ARGUMENT); |
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274 message = string; |
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275 } |
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276 |
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277 /++ |
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278 + SWT extension |
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279 +/ |
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280 public static int showMessageBox(String str, String title, Shell shell, int style) { |
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281 MessageBox msgBox = (shell is null ) ? new MessageBox( style ) : new MessageBox(shell, style); |
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282 msgBox.setMessage(str); |
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283 if(title !is null){ |
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284 msgBox.setText(title); |
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285 } |
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286 return msgBox.open(); |
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287 } |
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288 |
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289 /// SWT extension |
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290 public static int showInfo(String str, String title = null, Shell shell = null) { |
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291 return showMessageBox( str, title, shell, SWT.OK | SWT.ICON_INFORMATION ); |
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292 } |
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293 /// SWT extension |
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294 alias showInfo showInformation; |
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295 |
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296 /// SWT extension |
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297 public static int showWarning(String str, String title = null, Shell shell = null) { |
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298 return showMessageBox( str, title, shell, SWT.OK | SWT.ICON_WARNING ); |
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299 } |
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300 /// SWT extension |
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301 public static int showError(String str, String title = null, Shell shell = null) { |
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302 return showMessageBox( str, title, shell, SWT.OK | SWT.ICON_ERROR ); |
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303 } |
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304 |
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305 } |
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306 |