| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.breakpoints; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.model.IBreakpoint; |
| import org.eclipse.debug.ui.IBreakpointOrganizerDelegate; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * Content provider for the breakpoints view |
| */ |
| public class BreakpointsContentProvider implements ITreeContentProvider, IPropertyChangeListener { |
| |
| private IBreakpointOrganizer[] fOrganizers = null; |
| private BreakpointsViewer fViewer; |
| private Object[] fElements; |
| private boolean fDisposed = false; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) |
| */ |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement.equals(DebugPlugin.getDefault().getBreakpointManager())) { |
| return fElements; |
| } else if (parentElement instanceof BreakpointContainer) { |
| return ((BreakpointContainer)parentElement).getChildren(); |
| } |
| return new Object[0]; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) |
| */ |
| public Object getParent(Object element) { |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) |
| */ |
| public boolean hasChildren(Object element) { |
| return getChildren(element).length > 0; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#dispose() |
| */ |
| public void dispose() { |
| fDisposed = true; |
| fElements = null; |
| setOrganizers(null); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object) |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| fViewer = (BreakpointsViewer)viewer; |
| if (newInput != null) { |
| reorganize(); |
| } |
| } |
| |
| /** |
| * Sets the nested order of breakpoint organizers, or <code>null</code> |
| * if none. |
| * |
| * @param organizers the nested order of breakpoint organizers, or <code>null</code> |
| * if none |
| */ |
| public void setOrganizers(IBreakpointOrganizer[] organizers) { |
| if (organizers != null && organizers.length == 0) { |
| organizers = null; |
| } |
| // remove previous listeners |
| if (fOrganizers != null) { |
| for (int i = 0; i < fOrganizers.length; i++) { |
| fOrganizers[i].removePropertyChangeListener(this); |
| } |
| } |
| fOrganizers = organizers; |
| // add listeners |
| if (fOrganizers != null) { |
| for (int i = 0; i < fOrganizers.length; i++) { |
| fOrganizers[i].addPropertyChangeListener(this); |
| } |
| } |
| if (!fDisposed) { |
| fViewer.getControl().setRedraw(false); |
| // maintain expandsion based on visible breakpoints |
| IBreakpoint[] breakpoints = null; |
| if (isShowingGroups()) { |
| breakpoints = fViewer.getVisibleBreakpoints(); |
| } |
| reorganize(); |
| if (isShowingGroups()) { |
| // restore expansion |
| for (int i = 0; i < fElements.length; i++) { |
| BreakpointContainer container = (BreakpointContainer) fElements[i]; |
| for (int j = 0; j < breakpoints.length; j++) { |
| if (container.contains(breakpoints[j])) { |
| fViewer.expandToLevel(container, AbstractTreeViewer.ALL_LEVELS); |
| fViewer.updateCheckedState(container); |
| break; |
| } |
| } |
| |
| } |
| } |
| fViewer.getControl().setRedraw(true); |
| } |
| } |
| |
| /** |
| * Returns the root containers containing the given breakpoint, or <code>null</code> |
| * if none |
| * |
| * @param breakpoint |
| * @return root containers containing the given breakpoint or <code>null</code> |
| */ |
| public BreakpointContainer[] getRoots(IBreakpoint breakpoint) { |
| if (isShowingGroups()) { |
| List list = new ArrayList(); |
| for (int i = 0; i < fElements.length; i++) { |
| BreakpointContainer container = (BreakpointContainer) fElements[i]; |
| if (container.contains(breakpoint)) { |
| list.add(container); |
| } |
| } |
| return (BreakpointContainer[]) list.toArray(new BreakpointContainer[list.size()]); |
| } |
| return null; |
| } |
| |
| /** |
| * Returns the nested order of breakpoint organizers being used, or <code>null</code> |
| * if none. |
| * |
| * @return the nested order of breakpoint organizers being used, or <code>null</code> |
| * if none |
| */ |
| IBreakpointOrganizer[] getOrganizers() { |
| return fOrganizers; |
| } |
| |
| /** |
| * Organizes the breakpoints based on nested categories, if any. |
| */ |
| protected void reorganize() { |
| IBreakpoint[] breakpoints = DebugPlugin.getDefault().getBreakpointManager().getBreakpoints(); |
| if (fOrganizers == null) { |
| fElements = breakpoints; |
| } else { |
| IBreakpointOrganizer organizer = fOrganizers[0]; |
| Map categoriesToContainers = new HashMap(); |
| for (int i = 0; i < breakpoints.length; i++) { |
| IBreakpoint breakpoint = breakpoints[i]; |
| IAdaptable[] categories = organizer.getCategories(breakpoint); |
| if (categories == null || categories.length == 0) { |
| categories = OtherBreakpointCategory.getCategories(organizer); |
| } |
| for (int j = 0; j < categories.length; j++) { |
| IAdaptable category = categories[j]; |
| BreakpointContainer container = (BreakpointContainer) categoriesToContainers.get(category); |
| if (container == null) { |
| IBreakpointOrganizer[] nesting = null; |
| if (fOrganizers.length > 1) { |
| nesting = new IBreakpointOrganizer[fOrganizers.length - 1]; |
| System.arraycopy(fOrganizers, 1, nesting, 0, nesting.length); |
| } |
| container = new BreakpointContainer(category, organizer, nesting); |
| categoriesToContainers.put(category, container); |
| } |
| container.addBreakpoint(breakpoint); |
| } |
| } |
| // add empty categories |
| IAdaptable[] emptyCategories = organizer.getCategories(); |
| if (emptyCategories != null) { |
| for (int i = 0; i < emptyCategories.length; i++) { |
| IAdaptable category = emptyCategories[i]; |
| BreakpointContainer container = (BreakpointContainer) categoriesToContainers.get(category); |
| if (container == null) { |
| container = new BreakpointContainer(category, organizer, null); |
| categoriesToContainers.put(category, container); |
| } |
| } |
| } |
| fElements = categoriesToContainers.values().toArray(); |
| } |
| fViewer.getControl().setRedraw(false); |
| fViewer.refresh(); |
| fViewer.getControl().setRedraw(true); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent) |
| */ |
| public void propertyChange(PropertyChangeEvent event) { |
| if (event.getProperty().equals(IBreakpointOrganizerDelegate.P_CATEGORY_CHANGED)) { |
| // TODO: only re-organize if showing the changed category |
| reorganize(); |
| } |
| } |
| |
| /** |
| * Returns the existing containers the given breakpoint is contained in, or <code>null</code>. |
| * |
| * @param breakpoint |
| * @return the existing containers the given breakpoint is contained in, or <code>null</code> |
| */ |
| protected BreakpointContainer[] getContainers(IBreakpoint breakpoint) { |
| if (isShowingGroups()) { |
| IAdaptable[] categories = fOrganizers[0].getCategories(breakpoint); |
| if (categories == null || categories.length == 0) { |
| categories = OtherBreakpointCategory.getCategories(fOrganizers[0]); |
| } |
| BreakpointContainer[] containers = new BreakpointContainer[categories.length]; |
| int index = 0; |
| for (int i = 0; i < fElements.length; i++) { |
| BreakpointContainer container = (BreakpointContainer)fElements[i]; |
| for (int j = 0; j < categories.length; j++) { |
| IAdaptable category = categories[j]; |
| if (container.getCategory().equals(category)) { |
| containers[index] = container; |
| index++; |
| } |
| } |
| } |
| return containers; |
| } |
| return null; |
| } |
| |
| /** |
| * Returns whether content is grouped by categories. |
| * |
| * @return whether content is grouped by categories |
| */ |
| protected boolean isShowingGroups() { |
| return fOrganizers != null; |
| } |
| } |
