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annotate dwt/widgets/MessageBox.d @ 190:72ef824d4983

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dwt.program.Program
author Frank Benoit <benoit@tionex.de>
date Mon, 17 Mar 2008 00:46:30 +0100
parents 14df61b39bee
children ab60f3309436
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92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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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 * 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 dwt.widgets.MessageBox;
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14
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15 import dwt.DWT;
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16 import dwt.DWTException;
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17 import dwt.internal.win32.OS;
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18
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19 import dwt.widgets.Dialog;
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20 import dwt.widgets.Shell;
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21 import dwt.widgets.Display;
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22
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23 /**
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24 * Instances of this class are used to inform or warn the user.
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25 * <dl>
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26 * <dt><b>Styles:</b></dt>
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27 * <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd>
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28 * <dd>OK, OK | CANCEL</dd>
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29 * <dd>YES | NO, YES | NO | CANCEL</dd>
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30 * <dd>RETRY | CANCEL</dd>
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31 * <dd>ABORT | RETRY | IGNORE</dd>
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32 * <dt><b>Events:</b></dt>
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33 * <dd>(none)</dd>
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34 * </dl>
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35 * <p>
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36 * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION,
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37 * ICON_WARNING and ICON_WORKING may be specified.
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38 * </p><p>
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39 * IMPORTANT: This class is intended to be subclassed <em>only</em>
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40 * within the DWT implementation.
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41 * </p>
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42 */
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43 public class MessageBox : Dialog {
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44 char[] message = "";
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45 private bool allowNullParent = false;
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46
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47 /**
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48 * Constructs a new instance of this class given only its parent.
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49 *
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50 * @param parent a shell which will be the parent of the new instance
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51 *
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52 * @exception IllegalArgumentException <ul>
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53 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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54 * </ul>
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55 * @exception DWTException <ul>
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56 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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57 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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58 * </ul>
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59 */
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60 public this (Shell parent) {
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61 this (parent, DWT.OK | DWT.ICON_INFORMATION | DWT.APPLICATION_MODAL);
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62 }
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63
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64 /**
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65 * Constructs a new instance of this class given its parent
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66 * and a style value describing its behavior and appearance.
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67 * <p>
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68 * The style value is either one of the style constants defined in
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69 * class <code>DWT</code> which is applicable to instances of this
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70 * class, or must be built by <em>bitwise OR</em>'ing together
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71 * (that is, using the <code>int</code> "|" operator) two or more
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72 * of those <code>DWT</code> style constants. The class description
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73 * lists the style constants that are applicable to the class.
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74 * Style bits are also inherited from superclasses.
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75 *
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76 * @param parent a shell which will be the parent of the new instance
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77 * @param style the style of dialog to construct
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78 *
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79 * @exception IllegalArgumentException <ul>
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80 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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81 * </ul>
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82 * @exception DWTException <ul>
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83 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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84 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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85 * </ul>
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86 */
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87 public this (Shell parent, int style) {
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88 super (parent, checkStyle (style));
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89 checkSubclass ();
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90 }
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91
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92 /++
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93 + DWT extension, a MessageBox with no parent
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94 +/
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95 public this (int style) {
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96 allowNullParent = true;
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97 super (parent, checkStyle (style));
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98 checkSubclass ();
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99 }
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100 // PORT
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101 // actually, the parent can be null
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102 override void checkParent (Shell parent){
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103 if( !allowNullParent ){
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104 super.checkParent( parent );
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105 }
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106 }
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107
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108 static int checkStyle (int style) {
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109 if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) is 0) style |= DWT.APPLICATION_MODAL;
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110 int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE);
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111 int bits = style & mask;
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112 if (bits is DWT.OK || bits is DWT.CANCEL || bits is (DWT.OK | DWT.CANCEL)) return style;
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113 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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114 if (bits is (DWT.RETRY | DWT.CANCEL) || bits is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) return style;
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115 style = (style & ~mask) | DWT.OK;
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116 return style;
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117 }
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118
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119 /**
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120 * Returns the dialog's message, or an empty string if it does not have one.
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121 * The message is a description of the purpose for which the dialog was opened.
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parents:
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122 * This message will be visible in the dialog while it is open.
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diff changeset
123 *
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parents:
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124 * @return the message
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diff changeset
125 */
60
6423053f6d3e MessageBox
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diff changeset
126 public char[] getMessage () {
31
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127 return message;
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128 }
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129
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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130 /**
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131 * Makes the dialog visible and brings it to the front
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132 * of the display.
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133 *
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134 * @return the ID of the button that was selected to dismiss the
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135 * message box (e.g. DWT.OK, DWT.CANCEL, etc.)
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136 *
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137 * @exception DWTException <ul>
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138 * <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li>
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139 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li>
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140 * </ul>
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141 */
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142 public int open () {
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143
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144 /* Compute the MessageBox style */
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145 int buttonBits = 0;
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146 if ((style & DWT.OK) is DWT.OK) buttonBits = OS.MB_OK;
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147 if ((style & (DWT.OK | DWT.CANCEL)) is (DWT.OK | DWT.CANCEL)) buttonBits = OS.MB_OKCANCEL;
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148 if ((style & (DWT.YES | DWT.NO)) is (DWT.YES | DWT.NO)) buttonBits = OS.MB_YESNO;
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149 if ((style & (DWT.YES | DWT.NO | DWT.CANCEL)) is (DWT.YES | DWT.NO | DWT.CANCEL)) buttonBits = OS.MB_YESNOCANCEL;
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150 if ((style & (DWT.RETRY | DWT.CANCEL)) is (DWT.RETRY | DWT.CANCEL)) buttonBits = OS.MB_RETRYCANCEL;
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parents:
diff changeset
151 if ((style & (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) buttonBits = OS.MB_ABORTRETRYIGNORE;
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parents:
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152 if (buttonBits is 0) buttonBits = OS.MB_OK;
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153
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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154 int iconBits = 0;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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155 if ((style & DWT.ICON_ERROR) !is 0) iconBits = OS.MB_ICONERROR;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
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156 if ((style & DWT.ICON_INFORMATION) !is 0) iconBits = OS.MB_ICONINFORMATION;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
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157 if ((style & DWT.ICON_QUESTION) !is 0) iconBits = OS.MB_ICONQUESTION;
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158 if ((style & DWT.ICON_WARNING) !is 0) iconBits = OS.MB_ICONWARNING;
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159 if ((style & DWT.ICON_WORKING) !is 0) iconBits = OS.MB_ICONINFORMATION;
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160
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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161 /* Only MB_APPLMODAL is supported on WinCE */
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162 int modalBits = 0;
117
25f88bf5a6df Only one file was damaged
Frank Benoit <benoit@tionex.de>
parents: 115
diff changeset
163 static if (OS.IsWinCE) {
31
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164 if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) !is 0) {
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165 modalBits = OS.MB_APPLMODAL;
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166 }
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167 } else {
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168 if ((style & DWT.PRIMARY_MODAL) !is 0) modalBits = OS.MB_APPLMODAL;
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169 if ((style & DWT.APPLICATION_MODAL) !is 0) modalBits = OS.MB_TASKMODAL;
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170 if ((style & DWT.SYSTEM_MODAL) !is 0) modalBits = OS.MB_SYSTEMMODAL;
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171 }
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172
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173 int bits = buttonBits | iconBits | modalBits;
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174 if ((style & DWT.RIGHT_TO_LEFT) !is 0) bits |= OS.MB_RTLREADING;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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diff changeset
175 if ((style & (DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT)) is 0) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
176 if (parent !is null && (parent.style & DWT.MIRRORED) !is 0) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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177 bits |= OS.MB_RTLREADING;
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178 }
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179 }
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180
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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181 /*
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diff changeset
182 * Feature in Windows. System modal is not supported
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parents:
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183 * on Windows 95 and NT. The fix is to convert system
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184 * modal to task modal.
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185 */
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parents:
diff changeset
186 if ((bits & OS.MB_SYSTEMMODAL) !is 0) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
187 bits |= OS.MB_TASKMODAL;
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diff changeset
188 bits &= ~OS.MB_SYSTEMMODAL;
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parents:
diff changeset
189 /* Force a system modal message box to the front */
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parents:
diff changeset
190 bits |= OS.MB_TOPMOST;
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191 }
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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192
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
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193 /*
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diff changeset
194 * Feature in Windows. In order for MB_TASKMODAL to work,
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
195 * the parent HWND of the MessageBox () call must be NULL.
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parents:
diff changeset
196 * If the parent is not NULL, MB_TASKMODAL behaves the
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
197 * same as MB_APPLMODAL. The fix to set the parent HWND
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parents:
diff changeset
198 * anyway and not rely on MB_MODAL to work by making the
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199 * parent be temporarily modal.
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diff changeset
200 */
60
6423053f6d3e MessageBox
Frank Benoit <benoit@tionex.de>
parents: 31
diff changeset
201 HWND hwndOwner = parent !is null ? parent.handle : null;
31
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
202 Shell oldModal = null;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
203 Display display = null;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
204 if ((bits & OS.MB_TASKMODAL) !is 0) {
129
18ca5d3c6dfc Chg to SWT: Allow MessageBox without parent, when instantiated over special ctor.
Frank Benoit <benoit@tionex.de>
parents: 117
diff changeset
205 display = ( allowNullParent && parent is null ) ? Display.getCurrent() : parent.getDisplay ();
31
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
206 oldModal = display.getModalDialogShell ();
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
207 display.setModalDialogShell (parent);
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parents:
diff changeset
208 }
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
209
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
210 /* Open the message box */
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
211 /* Use the character encoding for the default locale */
60
6423053f6d3e MessageBox
Frank Benoit <benoit@tionex.de>
parents: 31
diff changeset
212 TCHAR[] buffer1 = StrToTCHARs (0, message, true);
6423053f6d3e MessageBox
Frank Benoit <benoit@tionex.de>
parents: 31
diff changeset
213 TCHAR[] buffer2 = StrToTCHARs (0, title, true);
6423053f6d3e MessageBox
Frank Benoit <benoit@tionex.de>
parents: 31
diff changeset
214 int code = OS.MessageBox (hwndOwner, buffer1.ptr, buffer2.ptr, bits);
31
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
215
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
216 /* Clear the temporarily dialog modal parent */
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
217 if ((bits & OS.MB_TASKMODAL) !is 0) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
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parents:
diff changeset
218 display.setModalDialogShell (oldModal);
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
219 }
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
220
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
221 /*
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
222 * This code is intentionally commented. On some
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
223 * platforms, the owner window is repainted right
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
224 * away when a dialog window exits. This behavior
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
225 * is currently unspecified.
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
226 */
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
227 // if (hwndOwner !is 0) OS.UpdateWindow (hwndOwner);
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
228
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
229 /* Compute and return the result */
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
230 if (code !is 0) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
231 int type = bits & 0x0F;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
232 if (type is OS.MB_OK) return DWT.OK;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
233 if (type is OS.MB_OKCANCEL) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
234 return (code is OS.IDOK) ? DWT.OK : DWT.CANCEL;
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
235 }
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
236 if (type is OS.MB_YESNO) {
92c102dd64a3 Added all widgets modules as dummy. Most modules of accessible are equal to the linux version, except Accessible.
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
237 return (code is OS.IDYES) ? DWT.YES : DWT.NO;
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238 }
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239 if (type is OS.MB_YESNOCANCEL) {
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240 if (code is OS.IDYES) return DWT.YES;
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241 if (code is OS.IDNO) return DWT.NO;
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242 return DWT.CANCEL;
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243 }
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244 if (type is OS.MB_RETRYCANCEL) {
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245 return (code is OS.IDRETRY) ? DWT.RETRY : DWT.CANCEL;
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246 }
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247 if (type is OS.MB_ABORTRETRYIGNORE) {
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248 if (code is OS.IDRETRY) return DWT.RETRY;
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249 if (code is OS.IDABORT) return DWT.ABORT;
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250 return DWT.IGNORE;
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251 }
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252 }
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253 return DWT.CANCEL;
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254 }
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255
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256 /**
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257 * Sets the dialog's message, which is a description of
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258 * the purpose for which it was opened. This message will be
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259 * visible on the dialog while it is open.
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260 *
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261 * @param string the message
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262 *
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263 * @exception IllegalArgumentException <ul>
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264 * <li>ERROR_NULL_ARGUMENT - if the string is null</li>
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265 * </ul>
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266 */
60
6423053f6d3e MessageBox
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267 public void setMessage (char[] string) {
31
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268 if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
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269 message = string;
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270 }
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271
190
72ef824d4983 dwt.program.Program
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272 /++
72ef824d4983 dwt.program.Program
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273 + DWT extension
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274 +/
132
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275 public static int showMessageBox(char[] str, char[] title, Shell shell, int style) {
130
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276 MessageBox msgBox = (shell is null ) ? new MessageBox( style ) : new MessageBox(shell, style);
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277 msgBox.setMessage(str);
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278 if(title !is null){
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279 msgBox.setText(title);
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280 }
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281 return msgBox.open();
31
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282 }
60
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283
130
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284 /// DWT extension
131
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285 public static int showInfo(char[] str, char[] title = null, Shell shell = null) {
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286 return showMessageBox( str, title, shell, DWT.OK | DWT.ICON_INFORMATION );
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287 }
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288 /// DWT extension
132
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289 alias showInfo showInformation;
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290
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291 /// DWT extension
131
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292 public static int showWarning(char[] str, char[] title = null, Shell shell = null) {
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293 return showMessageBox( str, title, shell, DWT.OK | DWT.ICON_WARNING );
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294 }
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295 /// DWT extension
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296 public static int showError(char[] str, char[] title = null, Shell shell = null) {
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297 return showMessageBox( str, title, shell, DWT.OK | DWT.ICON_ERROR );
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298 }
130
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299
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300 }
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301