Attachment 50725 Details for Bug 157793 – Updared project reference page

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Updared project reference page

ProjectReferencePage.java (text/plain), 9.39 KB, created by Tod Creasey

on 2006-09-22 15:38:53 EDT

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Description:

Filename:

MIME Type:

Creator: Tod Creasey

Created: 2006-09-22 15:38:53 EDT

Size: 9.39 KB

patch

obsolete

>/*******************************************************************************
> * Copyright (c) 2000, 2006 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.ui.internal.ide.dialogs;
>
>import java.lang.reflect.InvocationTargetException;
>import java.util.ArrayList;
>
>import org.eclipse.core.resources.IProject;
>import org.eclipse.core.resources.IProjectDescription;
>import org.eclipse.core.resources.IResource;
>import org.eclipse.core.resources.IWorkspace;
>import org.eclipse.core.runtime.CoreException;
>import org.eclipse.core.runtime.IProgressMonitor;
>import org.eclipse.core.runtime.IStatus;
>import org.eclipse.core.runtime.Status;
>import org.eclipse.jface.dialogs.ErrorDialog;
>import org.eclipse.jface.operation.IRunnableWithProgress;
>import org.eclipse.jface.preference.PreferencePage;
>import org.eclipse.jface.viewers.CheckStateChangedEvent;
>import org.eclipse.jface.viewers.CheckboxTableViewer;
>import org.eclipse.jface.viewers.ICheckStateListener;
>import org.eclipse.jface.viewers.IStructuredContentProvider;
>import org.eclipse.jface.viewers.ViewerComparator;
>import org.eclipse.osgi.util.NLS;
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.graphics.Font;
>import org.eclipse.swt.graphics.FontData;
>import org.eclipse.swt.layout.GridData;
>import org.eclipse.swt.layout.GridLayout;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Control;
>import org.eclipse.swt.widgets.Label;
>import org.eclipse.ui.PlatformUI;
>import org.eclipse.ui.dialogs.PropertyPage;
>import org.eclipse.ui.internal.ide.DialogUtil;
>import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
>import org.eclipse.ui.internal.ide.IDEWorkbenchPlugin;
>import org.eclipse.ui.internal.ide.IIDEHelpContextIds;
>import org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog;
>import org.eclipse.ui.model.WorkbenchContentProvider;
>import org.eclipse.ui.model.WorkbenchLabelProvider;
>
>/**
> * A property page for viewing and modifying the set
> * of projects referenced by a given project.
> */
>public class ProjectReferencePage extends PropertyPage {
>    private IProject project;
>
>    private boolean modified = false;
>
>    //widgets
>    private CheckboxTableViewer listViewer;
>
>    private static final int PROJECT_LIST_MULTIPLIER = 30;
>
>    /**
>     * Creates a new ProjectReferencePage.
>     */
>    public ProjectReferencePage() {
>        //Do nothing on creation
>    }
>
>    /**
>     * @see PreferencePage#createContents
>     */
>    protected Control createContents(Composite parent) {
>
>    	PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(),
>                IIDEHelpContextIds.PROJECT_REFERENCE_PROPERTY_PAGE);
>        Font font = parent.getFont();
>
>        Composite composite = new Composite(parent, SWT.NONE);
>        GridLayout layout = new GridLayout();
>        composite.setLayout(layout);
>        composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
>        composite.setFont(font);
>
>        initialize();
>
>        Label description = createDescriptionLabel(composite);
>        description.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
>
>        listViewer = CheckboxTableViewer.newCheckList(composite, SWT.TOP
>                | SWT.BORDER);
>        listViewer.getTable().setFont(font);
>        GridData data = new GridData(GridData.FILL_BOTH);
>        data.grabExcessHorizontalSpace = true;
>        
>        if(!project.isOpen())
>        	listViewer.getControl().setEnabled(false);
>
>        //Only set a height hint if it will not result in a cut off dialog
>        if (DialogUtil.inRegularFontMode(parent)) {
>			data.heightHint = getDefaultFontHeight(listViewer.getTable(),
>                    PROJECT_LIST_MULTIPLIER);
>		}
>        listViewer.getTable().setLayoutData(data);
>        listViewer.getTable().setFont(font);
>
>        listViewer.setLabelProvider(WorkbenchLabelProvider
>                .getDecoratingWorkbenchLabelProvider());
>        listViewer.setContentProvider(getContentProvider(project));
>        listViewer.setComparator(new ViewerComparator());
>        listViewer.setInput(project.getWorkspace());
>        try {
>            listViewer.setCheckedElements(project.getDescription()
>                    .getReferencedProjects());
>        } catch (CoreException e) {
>            //don't initial-check anything
>        }
>
>        //check for initial modification to avoid work if no changes are made
>        listViewer.addCheckStateListener(new ICheckStateListener() {
>            public void checkStateChanged(CheckStateChangedEvent event) {
>                modified = true;
>            }
>        });
>
>        return composite;
>    }
>
>    /**
>     * Returns a content provider for the list dialog. It
>     * will return all projects in the workspace except
>     * the given project, plus any projects referenced
>     * by the given project which do no exist in the
>     * workspace.
>     * @param project the project to provide content for
>     * @return the content provider that shows the project content
>     */
>    protected IStructuredContentProvider getContentProvider(
>            final IProject project) {
>        return new WorkbenchContentProvider() {
>            public Object[] getChildren(Object o) {
>                if (!(o instanceof IWorkspace)) {
>                    return new Object[0];
>                }
>
>                // Collect all the projects in the workspace except the given project
>                IProject[] projects = ((IWorkspace) o).getRoot().getProjects();
>                ArrayList referenced = new ArrayList(projects.length);
>                boolean found = false;
>                for (int i = 0; i < projects.length; i++) {
>                    if (!found && projects[i].equals(project)) {
>                        found = true;
>                        continue;
>                    }
>                    referenced.add(projects[i]);
>                }
>
>                // Add any referenced that do not exist in the workspace currently
>                try {
>                    projects = project.getDescription().getReferencedProjects();
>                    for (int i = 0; i < projects.length; i++) {
>                        if (!referenced.contains(projects[i])) {
>							referenced.add(projects[i]);
>						}
>                    }
>                } catch (CoreException e) {
>                    //Ignore core exceptions
>                }
>
>                return referenced.toArray();
>            }
>        };
>    }
>
>    /**
>     * Get the defualt widget height for the supplied control.
>     * @return int
>     * @param control - the control being queried about fonts
>     * @param lines - the number of lines to be shown on the table.
>     */
>    private static int getDefaultFontHeight(Control control, int lines) {
>        FontData[] viewerFontData = control.getFont().getFontData();
>        int fontHeight = 10;
>
>        //If we have no font data use our guess
>        if (viewerFontData.length > 0) {
>			fontHeight = viewerFontData[0].getHeight();
>		}
>        return lines * fontHeight;
>
>    }
>
>    /**
>     * Handle the exception thrown when saving.
>     * @param e the exception
>     */
>    protected void handle(InvocationTargetException e) {
>        IStatus error;
>        Throwable target = e.getTargetException();
>        if (target instanceof CoreException) {
>            error = ((CoreException) target).getStatus();
>        } else {
>            String msg = target.getMessage();
>            if (msg == null) {
>				msg = IDEWorkbenchMessages.Internal_error;
>			}
>            error = new Status(IStatus.ERROR, IDEWorkbenchPlugin.IDE_WORKBENCH,
>                    1, msg, target);
>        }
>        ErrorDialog.openError(getControl().getShell(), null, null, error);
>    }
>
>    /**
>     * Initializes a ProjectReferencePage.
>     */
>    private void initialize() {
>        project = (IProject) getElement().getAdapter(IResource.class);
>        noDefaultAndApplyButton();
>        setDescription(NLS.bind(IDEWorkbenchMessages.ProjectReferencesPage_label, project.getName()));
>    }
>
>    /**
>     * @see PreferencePage#performOk
>     */
>    public boolean performOk() {
>        if (!modified) {
>			return true;
>		}
>        Object[] checked = listViewer.getCheckedElements();
>        final IProject[] refs = new IProject[checked.length];
>        System.arraycopy(checked, 0, refs, 0, checked.length);
>        IRunnableWithProgress runnable = new IRunnableWithProgress() {
>            public void run(IProgressMonitor monitor)
>                    throws InvocationTargetException {
>
>                try {
>                    IProjectDescription description = project.getDescription();
>                    description.setReferencedProjects(refs);
>                    project.setDescription(description, monitor);
>                } catch (CoreException e) {
>                    throw new InvocationTargetException(e);
>                }
>            }
>        };
>        try {
>            new ProgressMonitorJobsDialog(getControl().getShell()).run(true,
>                    true, runnable);
>        } catch (InterruptedException e) {
>            //Ignore interrupted exceptions
>        } catch (InvocationTargetException e) {
>            handle(e);
>            return false;
>        }
>        return true;
>    }
>}

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Attachments on bug 157793: 50725 | 50726