--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/widgets/MessageBox.d	Sat Aug 09 17:00:02 2008 +0200
@@ -0,0 +1,263 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+module dwt.widgets.MessageBox;
+
+import dwt.dwthelper.utils;
+
+
+import dwt.DWT;
+import dwt.DWTException;
+import dwt.internal.cocoa.NSAlert;
+import dwt.internal.cocoa.NSString;
+import dwt.internal.cocoa.OS;
+
+/**
+ * Instances of this class are used to inform or warn the user.
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>ICON_ERROR, ICON_INFORMATION, ICON_QUESTION, ICON_WARNING, ICON_WORKING</dd>
+ * <dd>OK, OK | CANCEL</dd>
+ * <dd>YES | NO, YES | NO | CANCEL</dd>
+ * <dd>RETRY | CANCEL</dd>
+ * <dd>ABORT | RETRY | IGNORE</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(none)</dd>
+ * </dl>
+ * <p>
+ * Note: Only one of the styles ICON_ERROR, ICON_INFORMATION, ICON_QUESTION,
+ * ICON_WARNING and ICON_WORKING may be specified.
+ * </p><p>
+ * IMPORTANT: This class is intended to be subclassed <em>only</em>
+ * within the DWT implementation.
+ * </p>
+ */
+public  class MessageBox extends Dialog {
+    String message = "";
+    
+
+/**
+ * Constructs a new instance of this class given only its parent.
+ *
+ * @param parent a shell which will be the parent of the new instance
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public MessageBox (Shell parent) {
+    this (parent, DWT.OK | DWT.ICON_INFORMATION | DWT.APPLICATION_MODAL);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>DWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together 
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>DWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ *
+ * @param parent a shell which will be the parent of the new instance
+ * @param style the style of dialog to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception DWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public MessageBox (Shell parent, int style) {
+    super (parent, checkStyle (style));
+    checkSubclass ();
+}
+
+static int checkStyle (int style) {
+    if ((style & (DWT.PRIMARY_MODAL | DWT.APPLICATION_MODAL | DWT.SYSTEM_MODAL)) is 0) style |= DWT.APPLICATION_MODAL;
+    int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE);
+    int bits = style & mask;
+    if (bits is DWT.OK || bits is DWT.CANCEL || bits is (DWT.OK | DWT.CANCEL)) return style;
+    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;
+    if (bits is (DWT.RETRY | DWT.CANCEL) || bits is (DWT.ABORT | DWT.RETRY | DWT.IGNORE)) return style;
+    style = (style & ~mask) | DWT.OK;
+    return style;
+}
+
+/**
+ * Returns the dialog's message, or an empty string if it does not have one.
+ * The message is a description of the purpose for which the dialog was opened.
+ * This message will be visible in the dialog while it is open.
+ *
+ * @return the message
+ */
+public String getMessage () {
+    return message;
+}
+
+/**
+ * Makes the dialog visible and brings it to the front
+ * of the display.
+ *
+ * @return the ID of the button that was selected to dismiss the
+ *         message box (e.g. DWT.OK, DWT.CANCEL, etc.)
+ *
+ * @exception DWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the dialog has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the dialog</li>
+ * </ul>
+ */
+public int open () {
+    int alertType = OS.NSInformationalAlertStyle;
+    if ((style & DWT.ICON_ERROR) !is 0) alertType = OS.NSCriticalAlertStyle;
+    if ((style & DWT.ICON_INFORMATION) !is 0) alertType = OS.NSInformationalAlertStyle;
+    if ((style & DWT.ICON_QUESTION) !is 0) alertType = OS.NSInformationalAlertStyle;
+    if ((style & DWT.ICON_WARNING) !is 0) alertType = OS.NSWarningAlertStyle;
+    if ((style & DWT.ICON_WORKING) !is 0) alertType = OS.NSInformationalAlertStyle;
+    NSString defaultButton = null, alternateButton = null, otherButton = null;
+    int mask = (DWT.YES | DWT.NO | DWT.OK | DWT.CANCEL | DWT.ABORT | DWT.RETRY | DWT.IGNORE);
+    int bits = style & mask;
+    switch (bits) {
+        case DWT.OK:
+            break;
+        case DWT.CANCEL:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Cancel"));
+            break;
+        case DWT.OK | DWT.CANCEL:
+            alternateButton = NSString.stringWith(DWT.getMessage("SWT_Cancel"));
+            break;
+        case DWT.YES:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes"));
+            break;
+        case DWT.NO:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_No"));
+            break;
+        case DWT.YES | DWT.NO:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes"));
+            alternateButton = NSString.stringWith(DWT.getMessage("SWT_No"));
+            break;
+        case DWT.YES | DWT.NO | DWT.CANCEL:             
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Yes"));
+            alternateButton = NSString.stringWith(DWT.getMessage("SWT_No"));
+            otherButton = NSString.stringWith(DWT.getMessage("SWT_Cancel"));
+            break;
+        case DWT.RETRY | DWT.CANCEL:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Retry"));
+            alternateButton = NSString.stringWith(DWT.getMessage("SWT_Cancel"));
+            break;
+        case DWT.ABORT | DWT.RETRY | DWT.IGNORE:
+            defaultButton = NSString.stringWith(DWT.getMessage("SWT_Abort"));
+            alternateButton = NSString.stringWith(DWT.getMessage("SWT_Retry"));
+            otherButton = NSString.stringWith(DWT.getMessage("SWT_Ignore"));
+            break;
+    }
+    NSString title = NSString.stringWith(this.title !is null ? this.title : "");
+    NSString message = NSString.stringWith(this.message !is null ? this.message : "");
+    NSAlert alert = NSAlert.alertWithMessageText(title, defaultButton, alternateButton, otherButton, message);
+    alert.setAlertStyle(alertType);
+    int response = alert.runModal();
+    switch (bits) {
+        case DWT.OK:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.OK;
+            }
+            break;
+        case DWT.CANCEL:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.CANCEL;
+            }
+            break;
+        case DWT.OK | DWT.CANCEL:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.OK;
+                case OS.NSAlertAlternateReturn:
+                    return DWT.CANCEL;
+            }
+            break;
+        case DWT.YES:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.YES;
+            }
+            break;
+        case DWT.NO:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.NO;
+            }
+            break;
+        case DWT.YES | DWT.NO:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.YES;
+                case OS.NSAlertAlternateReturn:
+                    return DWT.NO;
+            }
+            break;
+        case DWT.YES | DWT.NO | DWT.CANCEL:             
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.YES;
+                case OS.NSAlertAlternateReturn:
+                    return DWT.NO;
+                case OS.NSAlertOtherReturn:
+                    return DWT.CANCEL;
+            }
+            break;
+        case DWT.RETRY | DWT.CANCEL:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.RETRY;
+                case OS.NSAlertAlternateReturn:
+                    return DWT.CANCEL;
+            }
+            break;
+        case DWT.ABORT | DWT.RETRY | DWT.IGNORE:
+            switch (response) {
+                case OS.NSAlertDefaultReturn:
+                    return DWT.ABORT;
+                case OS.NSAlertAlternateReturn:
+                    return DWT.RETRY;
+                case OS.NSAlertOtherReturn:
+                    return DWT.IGNORE;
+            }
+            break;
+    }
+    return DWT.CANCEL;
+}
+
+/**
+ * Sets the dialog's message, which is a description of
+ * the purpose for which it was opened. This message will be
+ * visible on the dialog while it is open.
+ *
+ * @param string the message
+ * 
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the string is null</li>
+ * </ul>
+ */
+public void setMessage (String string) {
+    if (string is null) error (DWT.ERROR_NULL_ARGUMENT);
+    message = string;
+}
+
+}