| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html
|
| */
|
|
|
| import org.eclipse.swt.internal.*;
|
| import org.eclipse.swt.internal.photon.*;
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.widgets.*;
|
|
|
| /** |
| * Instances of this class are used 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> |
| */ |
| public class MessageBox extends Dialog {
|
| String message = "";
|
| /** |
| * Constructs a new instance of this class given only its |
| * parent. |
| * <p> |
| * Note: Currently, null can be passed in for the parent. |
| * This has the effect of creating the dialog on the currently active |
| * display if there is one. If there is no current display, the |
| * dialog is created on a "default" display. <b>Passing in null as |
| * the parent is not considered to be good coding style, |
| * and may not be supported in a future release of SWT.</b> |
| * </p> |
| * |
| * @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. |
| * </p> |
| * Note: Currently, null can be passed in for the parent. |
| * This has the effect of creating the dialog on the currently active |
| * display if there is one. If there is no current display, the |
| * dialog is created on a "default" display. <b>Passing in null as |
| * the parent is not considered to be good coding style, |
| * and may not be supported in a future release of SWT.</b> |
| * </p> |
| * |
| * @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, int style) {
|
| super (parent, checkStyle (style));
|
| checkSubclass ();
|
| }
|
| static int checkStyle (int style) {
|
| if ((style & (SWT.PRIMARY_MODAL | SWT.APPLICATION_MODAL | SWT.SYSTEM_MODAL)) == 0) style |= SWT.APPLICATION_MODAL;
|
| 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;
|
| }
|
| /** |
| * Returns 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. |
| * |
| * @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 () {
|
| String[] buttons = null;
|
| if ((style & SWT.OK) == SWT.OK) {
|
| buttons = new String[]{SWT.getMessage ("SWT_OK")};
|
| }
|
| if ((style & (SWT.OK | SWT.CANCEL)) == (SWT.OK | SWT.CANCEL)) {
|
| buttons = new String[]{SWT.getMessage ("SWT_OK"), SWT.getMessage ("SWT_Cancel")};
|
| }
|
| if ((style & (SWT.YES | SWT.NO)) == (SWT.YES | SWT.NO)) {
|
| buttons = new String[]{SWT.getMessage ("SWT_Yes"), SWT.getMessage ("SWT_No")};
|
| }
|
| if ((style & (SWT.YES | SWT.NO | SWT.CANCEL)) == (SWT.YES | SWT.NO | SWT.CANCEL)){
|
| buttons = new String[]{SWT.getMessage ("SWT_Yes"), SWT.getMessage ("SWT_No"), SWT.getMessage ("SWT_Cancel")};
|
| }
|
| if ((style & (SWT.RETRY | SWT.CANCEL)) == (SWT.RETRY | SWT.CANCEL)) {
|
| buttons = new String[]{SWT.getMessage ("SWT_Retry"), SWT.getMessage ("SWT_Cancel")};
|
| }
|
| if ((style & (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) {
|
| buttons = new String[]{SWT.getMessage ("SWT_Abort"), SWT.getMessage ("SWT_Retry"), SWT.getMessage ("SWT_Cancel")};
|
| }
|
| if (buttons == null) buttons = new String[]{SWT.getMessage ("SWT_OK")};
|
|
|
| int phImage = 0;
|
| // int iconBits = 0;
|
| // if ((style & SWT.ICON_ERROR) != 0) iconBits = OS.MB_ICONERROR;
|
| // if ((style & SWT.ICON_INFORMATION) != 0) iconBits = OS.MB_ICONINFORMATION;
|
| // if ((style & SWT.ICON_QUESTION) != 0) iconBits = OS.MB_ICONQUESTION;
|
| // if ((style & SWT.ICON_WARNING) != 0) iconBits = OS.MB_ICONWARNING;
|
| // if ((style & SWT.ICON_WORKING) != 0) iconBits = OS.MB_ICONINFORMATION;
|
|
|
| int parentHandle = 0;
|
| if (parent != null) parentHandle = parent.shellHandle;
|
|
|
| byte [] title = null;
|
| if (this.title != null) title = Converter.wcsToMbcs (null, this.title, true);
|
| byte [] message = null;
|
| if (this.message != null) message = Converter.wcsToMbcs (null, this.message, true);
|
|
|
| int[] buttonsPtr = new int [buttons.length];
|
| for (int i=0; i<buttons.length; i++) {
|
| byte[] text = Converter.wcsToMbcs (null, buttons [i], true);
|
| int textPtr = OS.malloc (text.length);
|
| OS.memmove (textPtr, text, text.length);
|
| buttonsPtr [i] = textPtr;
|
| }
|
|
|
| int button = OS.PtAlert (parentHandle, null, title, phImage, message, null, buttons.length, buttonsPtr, null, 0, buttons.length, OS.Pt_MODAL);
|
|
|
| for (int i=0; i<buttons.length; i++) {
|
| OS.free (buttonsPtr [i]);
|
| }
|
|
|
| if ((style & (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) == (SWT.ABORT | SWT.RETRY | SWT.IGNORE)) {
|
| if (button == 1) return SWT.ABORT;
|
| if (button == 2) return SWT.RETRY;
|
| return SWT.IGNORE;
|
| }
|
| if ((style & (SWT.RETRY | SWT.CANCEL)) == (SWT.RETRY | SWT.CANCEL)) {
|
| return (button == 1) ? SWT.RETRY : SWT.CANCEL;
|
| }
|
| if ((style & (SWT.YES | SWT.NO | SWT.CANCEL)) == (SWT.YES | SWT.NO | SWT.CANCEL)) {
|
| if (button == 1) return SWT.YES;
|
| if (button == 2) return SWT.NO;
|
| return SWT.CANCEL;
|
| }
|
| if ((style & (SWT.YES | SWT.NO)) == (SWT.YES | SWT.NO)) {
|
| return (button == 1) ? SWT.YES : SWT.NO;
|
| }
|
| if ((style & (SWT.OK | SWT.CANCEL)) == (SWT.OK | SWT.CANCEL)) {
|
| return (button == 1) ? SWT.OK : SWT.CANCEL;
|
| }
|
| if ((style & SWT.OK) == SWT.OK && button == 1) return SWT.OK;
|
| 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 |
| */ |
| public void setMessage (String string) {
|
| message = string;
|
| }
|
| }
|