| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal.ide; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.PartInitException; |
| |
| /** |
| * Utility class to help with dialogs. |
| * <p> |
| * Note that a copy of this class exists in the |
| * org.eclipse.ui.internal package. |
| * </p> |
| */ |
| public class DialogUtil { |
| |
| /** |
| * Prevent instantiation. |
| */ |
| private DialogUtil() { |
| } |
| |
| /** |
| * Open an error style dialog for PartInitException by |
| * including any extra information from the nested |
| * CoreException if present. |
| */ |
| public static void openError(Shell parent, String title, String message, |
| PartInitException exception) { |
| // Check for a nested CoreException |
| CoreException nestedException = null; |
| IStatus status = exception.getStatus(); |
| if (status != null && status.getException() instanceof CoreException) |
| nestedException = (CoreException) status.getException(); |
| |
| if (nestedException != null) { |
| // Open an error dialog and include the extra |
| // status information from the nested CoreException |
| ErrorDialog.openError(parent, title, message, nestedException |
| .getStatus()); |
| } else { |
| // Open a regular error dialog since there is no |
| // extra information to display |
| MessageDialog.openError(parent, title, message); |
| } |
| } |
| |
| /** |
| * Removes the '&' accelerator indicator from a label, if any. |
| * Also removes the () accelerators which are used in Asian |
| * languages. |
| */ |
| public static String removeAccel(String label) { |
| |
| int startBracket = label.indexOf("(&"); //$NON-NLS-1$ |
| //Non latin accelerator? |
| if (startBracket >= 0) { |
| int endBracket = label.indexOf(')'); |
| |
| //If there is more than one character it is not an accelerator |
| if ((endBracket - startBracket) == 3) |
| return label.substring(0, startBracket) |
| + label.substring(endBracket + 1); |
| } |
| |
| int i = label.indexOf('&'); |
| if (i >= 0) |
| label = label.substring(0, i) + label.substring(i + 1); |
| |
| return label; |
| } |
| |
| /** |
| * Return the number of rows available in the current display using the |
| * current font. |
| * @param parent The Composite whose Font will be queried. |
| * @return int The result of the display size divided by the font size. |
| */ |
| public static int availableRows(Composite parent) { |
| |
| int fontHeight = (parent.getFont().getFontData())[0].getHeight(); |
| int displayHeight = parent.getDisplay().getClientArea().height; |
| |
| return displayHeight / fontHeight; |
| } |
| |
| /** |
| * Return whether or not the font in the parent is the size of a regular |
| * font. Typically used to know if a font is smaller than the High Contrast |
| * Font. This method is used to make layout decisions based on screen space. |
| * |
| * @param parent The Composite whose Font will be queried. |
| * @return boolean. True if there are more than 50 lines of possible |
| * text in the display. |
| */ |
| public static boolean inRegularFontMode(Composite parent) { |
| |
| return availableRows(parent) > 50; |
| } |
| } |