| /******************************************************************************* |
| * Copyright (c) 2004, 2015 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.debug.internal.ui.views.memory; |
| |
| import java.math.BigInteger; |
| import java.util.ArrayList; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.IMemoryBlockManager; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.core.model.IDebugTarget; |
| import org.eclipse.debug.core.model.IMemoryBlockExtension; |
| import org.eclipse.debug.core.model.IMemoryBlockRetrieval; |
| import org.eclipse.debug.internal.core.IInternalDebugCoreConstants; |
| import org.eclipse.debug.internal.ui.DebugUIPlugin; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.progress.UIJob; |
| |
| /** |
| * Util class for Memory View |
| * |
| * @since 3.0 |
| */ |
| public class MemoryViewUtil { |
| |
| public static final int[] ignoreKeyEvents = { |
| SWT.ARROW_UP, SWT.ARROW_DOWN, SWT.ARROW_LEFT, SWT.ARROW_RIGHT, |
| SWT.PAGE_UP, SWT.PAGE_DOWN, SWT.HOME, SWT.END, SWT.INSERT, SWT.F1, |
| SWT.F2, SWT.F3, SWT.F4, SWT.F5, SWT.F6, SWT.F7, SWT.F8, SWT.F9, |
| SWT.F10, SWT.F11, SWT.F12, SWT.F13, SWT.F14, SWT.F15, SWT.HELP, |
| SWT.CAPS_LOCK, SWT.NUM_LOCK, SWT.SCROLL_LOCK, SWT.PAUSE, SWT.BREAK, |
| SWT.PRINT_SCREEN, SWT.ESC, SWT.CTRL, SWT.ALT, SWT.SHIFT }; |
| |
| public static ArrayList<String> MEMORY_BLOCKS_HISTORY = new ArrayList<String>(); |
| |
| /** |
| * @param selection |
| * @return true if the given selection is valid for creating a memory block |
| */ |
| static public boolean isValidSelection(ISelection selection) { |
| |
| if (!(selection instanceof IStructuredSelection)) |
| return false; |
| |
| // only single selection is allowed for this action |
| if (selection.isEmpty() || ((IStructuredSelection) selection).size() > 1) { |
| return false; |
| } |
| |
| Object elem = ((IStructuredSelection) selection).getFirstElement(); |
| |
| return isValidContext(elem); |
| } |
| |
| /** |
| * @param elem |
| * @return |
| */ |
| public static boolean isValidContext(Object elem) { |
| // if not debug element |
| if (!(elem instanceof IAdaptable)) |
| return false; |
| |
| IMemoryBlockRetrieval memRetrieval = ((IAdaptable) elem).getAdapter(IMemoryBlockRetrieval.class); |
| |
| IDebugTarget debugTarget = null; |
| if (elem instanceof IDebugElement) { |
| debugTarget = ((IDebugElement) elem).getDebugTarget(); |
| } else { |
| debugTarget = ((IAdaptable) elem).getAdapter(IDebugTarget.class); |
| } |
| |
| if (memRetrieval == null) { |
| // if debug element returns null from getAdapter, assume its debug |
| // target is going to retrieve memory blocks |
| memRetrieval = debugTarget; |
| } |
| |
| // not valid if the debug target is already terminated |
| if (debugTarget != null && (debugTarget.isTerminated() || debugTarget.isDisconnected())) |
| return false; |
| |
| if (memRetrieval != null && memRetrieval.supportsStorageRetrieval()) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Helper function to open an error dialog. |
| * |
| * @param title |
| * @param message |
| * @param e |
| */ |
| static public void openError(final String title, final String message, final Exception e) { |
| UIJob uiJob = new UIJob("open error") { //$NON-NLS-1$ |
| |
| @Override |
| public IStatus runInUIThread(IProgressMonitor monitor) { |
| // open error for the exception |
| String detail = IInternalDebugCoreConstants.EMPTY_STRING; |
| if (e != null) |
| detail = e.getMessage(); |
| |
| Shell shell = DebugUIPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getShell(); |
| |
| MessageDialog.openError(shell, title, message + "\n" + detail); //$NON-NLS-1$ |
| return Status.OK_STATUS; |
| } |
| }; |
| uiJob.setSystem(true); |
| uiJob.schedule(); |
| } |
| |
| static IMemoryBlockManager getMemoryBlockManager() { |
| return DebugPlugin.getDefault().getMemoryBlockManager(); |
| } |
| |
| static public boolean isLinuxGTK() { |
| String ws = Platform.getWS(); |
| return ws.equals(Platform.WS_GTK); |
| } |
| |
| /** |
| * Checks to see if the event is valid for activating cell editing in a view |
| * tab |
| * |
| * @param event |
| * @return true if the edit event is valid for activating the cell editor |
| */ |
| public static boolean isValidEditEvent(int event) { |
| for (int i = 0; i < MemoryViewUtil.ignoreKeyEvents.length; i++) { |
| if (event == MemoryViewUtil.ignoreKeyEvents[i]) |
| return false; |
| } |
| return true; |
| } |
| |
| public static BigInteger alignToBoundary(BigInteger integer, int numberOfUnitsPerLine) { |
| BigInteger[] result = integer.divideAndRemainder(BigInteger.valueOf(numberOfUnitsPerLine)); |
| integer = integer.subtract(result[1]); |
| return integer; |
| } |
| |
| public static void addHistory(String expression) { |
| if (!MEMORY_BLOCKS_HISTORY.contains(expression)) |
| MEMORY_BLOCKS_HISTORY.add(0, expression); |
| |
| if (MEMORY_BLOCKS_HISTORY.size() > 5) |
| MEMORY_BLOCKS_HISTORY.remove(MEMORY_BLOCKS_HISTORY.size() - 1); |
| } |
| |
| public static String[] getHistory() { |
| return MEMORY_BLOCKS_HISTORY.toArray(new String[MEMORY_BLOCKS_HISTORY.size()]); |
| } |
| |
| /** |
| * Return the memory block retrieval of the given object |
| * |
| * @param object |
| * @return the memory block retrieval of the given object or |
| * <code>null</code> if no memory block retrieval can be found |
| * |
| * Returning null for the memory block retrieval will result in |
| * errors in operations that follow. |
| * |
| * Non-standard debug models must provide a memory block retrieval |
| * via <code>getAdapter(IMemoryBlockRetrieval.class</code> |
| */ |
| public static IMemoryBlockRetrieval getMemoryBlockRetrieval(Object object) { |
| IMemoryBlockRetrieval retrieval = null; |
| |
| // if memory block extension, retrieval must be queired throught its |
| // interface |
| if (object instanceof IMemoryBlockExtension) |
| return ((IMemoryBlockExtension) object).getMemoryBlockRetrieval(); |
| |
| // check if the object can adapt to a memory block retrieval |
| if (object instanceof IAdaptable) { |
| IAdaptable adaptable = (IAdaptable) object; |
| retrieval = adaptable.getAdapter(IMemoryBlockRetrieval.class); |
| } |
| |
| // if cannot adapt and the object itself is already an |
| // IMemoryBlockRetrieval, return that. |
| if (retrieval == null && object instanceof IMemoryBlockRetrieval) { |
| retrieval = (IMemoryBlockRetrieval) object; |
| } |
| |
| // otherewise, default back to the debug target |
| if (retrieval == null && object instanceof IDebugElement) { |
| IDebugElement de = (IDebugElement) object; |
| retrieval = de.getDebugTarget(); |
| } |
| |
| return retrieval; |
| } |
| |
| /** |
| * Returns the hash code for this object, as an Integer. |
| * */ |
| public static Integer getHashCode(Object o) { |
| return Integer.valueOf(o.hashCode()); |
| } |
| } |