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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/MessageBox.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/MessageBox.java | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/MessageBox.java b/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/MessageBox.java new file mode 100644 index 0000000000..58ed9c4472 --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/MessageBox.java @@ -0,0 +1,287 @@ +/******************************************************************************* + * Copyright (c) 2000, 2009 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 + *******************************************************************************/ +package org.eclipse.swt.widgets; + + +import org.eclipse.swt.*; +import org.eclipse.swt.internal.carbon.*; + +/** + * 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 SWT implementation. + * </p> + * + * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample, Dialog tab</a> + * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> + * @noextend This class is not intended to be subclassed by clients. + */ +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 SWTException <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, SWT.OK | SWT.ICON_INFORMATION | SWT.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>SWT</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>SWT</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 SWTException <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> + * + * @see SWT#ICON_ERROR + * @see SWT#ICON_INFORMATION + * @see SWT#ICON_QUESTION + * @see SWT#ICON_WARNING + * @see SWT#ICON_WORKING + * @see SWT#OK + * @see SWT#CANCEL + * @see SWT#YES + * @see SWT#NO + * @see SWT#ABORT + * @see SWT#RETRY + * @see SWT#IGNORE + */ +public MessageBox (Shell parent, int style) { + super (parent, checkStyle (parent, checkStyle (style))); + checkSubclass (); +} + +static int checkStyle (int style) { + int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE); + int bits = style & mask; + if (bits == SWT.OK || bits == SWT.CANCEL || bits == (SWT.OK | SWT.CANCEL)) return style; + if (bits == SWT.YES || bits == SWT.NO || bits == (SWT.YES | SWT.NO) || bits == (SWT.YES | SWT.NO | SWT.CANCEL)) return style; + if (bits == (SWT.RETRY | SWT.CANCEL) || bits == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) return style; + style = (style & ~mask) | SWT.OK; + return style; +} + +int createCFString (String id) { + String string = SWT.getMessage(id); + char [] buffer = new char [string.length ()]; + string.getChars (0, buffer.length, buffer, 0); + return OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); +} + +/** + * 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. SWT.OK, SWT.CANCEL, etc.) + * + * @exception SWTException <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.kAlertPlainAlert; + if ((style & SWT.ICON_ERROR) != 0) alertType = OS.kAlertStopAlert; + if ((style & SWT.ICON_INFORMATION) != 0) alertType = OS.kAlertNoteAlert; + if ((style & SWT.ICON_QUESTION) != 0) alertType = OS.kAlertNoteAlert; + if ((style & SWT.ICON_WARNING) != 0) alertType = OS.kAlertCautionAlert; + if ((style & SWT.ICON_WORKING) != 0) alertType = OS.kAlertNoteAlert; + + int error = 0; + int explanation = 0; + String errorString = title; + String explanationString = message; + if (errorString != null) { + char [] buffer = new char [errorString.length ()]; + errorString.getChars (0, buffer.length, buffer, 0); + error = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + } + if (explanationString != null) { + char [] buffer = new char [explanationString.length ()]; + explanationString.getChars (0, buffer.length, buffer, 0); + explanation = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + } + + AlertStdCFStringAlertParamRec param = new AlertStdCFStringAlertParamRec (); + param.version = OS.kStdCFStringAlertVersionOne; + param.position = (short)OS.kWindowAlertPositionParentWindowScreen; + int defaultStr = 0, cancelStr = 0, otherStr = 0; + int mask = (SWT.YES | SWT.NO | SWT.OK | SWT.CANCEL | SWT.ABORT | SWT.RETRY | SWT.IGNORE); + int bits = style & mask; + switch (bits) { + case SWT.OK: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = OS.kAlertDefaultOKText; + break; + case SWT.CANCEL: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Cancel"); + break; + case SWT.OK | SWT.CANCEL: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = OS.kAlertDefaultOKText; + param.cancelButton = (short)OS.kAlertStdAlertCancelButton; + param.cancelText = OS.kAlertDefaultCancelText; + break; + case SWT.YES: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Yes"); + break; + case SWT.NO: + param.cancelButton = (short)OS.kAlertStdAlertOKButton; + param.cancelText = defaultStr = createCFString ("SWT_No"); + break; + case SWT.YES | SWT.NO: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Yes"); + param.cancelButton = (short)OS.kAlertStdAlertCancelButton; + param.cancelText = cancelStr = createCFString ("SWT_No"); + break; + case SWT.YES | SWT.NO | SWT.CANCEL: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Yes"); + param.otherText = cancelStr = createCFString ("SWT_No"); + param.cancelButton = (short)OS.kAlertStdAlertCancelButton; + param.cancelText = OS.kAlertDefaultCancelText; + break; + case SWT.RETRY | SWT.CANCEL: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Retry"); + param.cancelButton = (short)OS.kAlertStdAlertCancelButton; + param.cancelText = OS.kAlertDefaultCancelText; + break; + case SWT.ABORT | SWT.RETRY | SWT.IGNORE: + param.defaultButton = (short)OS.kAlertStdAlertOKButton; + param.defaultText = defaultStr = createCFString ("SWT_Abort"); + param.otherText = cancelStr = createCFString ("SWT_Retry"); + param.cancelButton = (short)OS.kAlertStdAlertCancelButton; + param.cancelText = otherStr = createCFString ("SWT_Ignore"); + break; + } + + int [] dialogRef= new int [1]; + OS.CreateStandardAlert ((short) alertType, error, explanation, param, dialogRef); + if (error != 0) OS.CFRelease(error); + if (explanation != 0) OS.CFRelease(explanation); + if (defaultStr != 0) OS.CFRelease(defaultStr); + if (cancelStr != 0) OS.CFRelease(cancelStr); + if (otherStr != 0) OS.CFRelease(otherStr); + + if (dialogRef[0] != 0) { + /* Force a system modal message box to the front */ + if ((style & SWT.SYSTEM_MODAL) != 0) { + OS.SetFrontProcessWithOptions (new int [] {0, OS.kCurrentProcess}, OS.kSetFrontProcessFrontWindowOnly); + } + short [] outItemHit = new short [1]; + OS.RunStandardAlert(dialogRef[0], 0, outItemHit); + if (outItemHit [0] != 0) { + switch (bits) { + case SWT.OK: + return SWT.OK; + case SWT.CANCEL: + return SWT.CANCEL; + case SWT.OK | SWT.CANCEL: + if (outItemHit [0] == OS.kAlertStdAlertOKButton) return SWT.OK; + return SWT.CANCEL; + case SWT.YES: + return SWT.YES; + case SWT.NO: + return SWT.NO; + case SWT.YES | SWT.NO: + if (outItemHit [0] == OS.kAlertStdAlertOKButton) return SWT.YES; + return SWT.NO; + case SWT.YES | SWT.NO | SWT.CANCEL: + if (outItemHit [0] == OS.kAlertStdAlertOKButton) return SWT.YES; + if (outItemHit [0] == OS.kAlertStdAlertOtherButton) return SWT.NO; + return SWT.CANCEL; + case SWT.RETRY | SWT.CANCEL: + if (outItemHit [0] == OS.kAlertStdAlertOKButton) return SWT.RETRY; + return SWT.CANCEL; + case SWT.ABORT | SWT.RETRY | SWT.IGNORE: + if (outItemHit [0] == OS.kAlertStdAlertOKButton) return SWT.ABORT; + if (outItemHit [0] == OS.kAlertStdAlertOtherButton) return SWT.RETRY; + return SWT.IGNORE; + } + } + } + return SWT.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 == null) error (SWT.ERROR_NULL_ARGUMENT); + message = string; +} + +} |