org.peprframework.ide.views.ProcessInspector.java Source code

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Here is the source code for org.peprframework.ide.views.ProcessInspector.java

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/**
 * Copyright 2009 pepr Framework
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.peprframework.ide.views;

import org.eclipse.gef.commands.Command;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.forms.widgets.Form;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.part.ViewPart;
import org.peprframework.ide.parts.ActivityEditPart;
import org.peprframework.ide.views.ProcessInspectorPage.ModificationHook;
import org.peprframework.ide.views.pages.configuration.ConfigurationPage;
import org.peprframework.ide.views.pages.input.InputPage;
import org.peprframework.ide.views.pages.overview.OverviewPage;

/**
 * @author Volker Fritzsch
 * @version 1.0
 */
public class ProcessInspector extends ViewPart implements ISelectionListener {

    private FormToolkit toolkit;

    private Form scrolledForm;

    private Action applyAction;

    private ActivityEditPart currentSelection;

    private CTabFolder tabFolder;

    private ProcessInspectorPage overviewPage;

    private ProcessInspectorPage configurationPage;

    private ProcessInspectorPage inputPage;

    private ModificationHook modificationHook = new ModificationHook() {

        public void modified() {
            applyAction.setEnabled(true);
        }
    };

    /* (non-Javadoc)
     * @see org.eclipse.ui.ISelectionListener#selectionChanged(org.eclipse.ui.IWorkbenchPart, org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IWorkbenchPart part, ISelection selection) {
        Object selectedElement = null;
        if (selection != null && selection instanceof IStructuredSelection)
            selectedElement = ((IStructuredSelection) selection).getFirstElement();

        this.currentSelection = null;
        if (selectedElement != null && selectedElement instanceof ActivityEditPart) {
            this.currentSelection = (ActivityEditPart) selectedElement;
            scrolledForm.setText(this.currentSelection.getActivity().getName());
        } else {
            scrolledForm.setText("Process Inspector");
        }

        this.overviewPage.selectionChanged(part, selection);
        this.configurationPage.selectionChanged(part, selection);
        this.inputPage.selectionChanged(part, selection);

        //TODO push this into all subpages
        //      this.scrolledForm.reflow(true);
        for (CTabItem tab : tabFolder.getItems()) {
            ((Composite) tab.getControl()).layout(true, true);
        }
        this.applyAction.setEnabled(false);
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
     */
    @Override
    public void createPartControl(Composite parent) {
        toolkit = new FormToolkit(parent.getDisplay());
        scrolledForm = toolkit.createForm(parent);
        scrolledForm.getBody().setLayout(new FillLayout());

        createActions();
        fillFormToolBar();
        fillPages();

        getSite().getPage().addPostSelectionListener(this);
        selectionChanged(getSite().getPart(), getSite().getPage().getSelection());
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.part.WorkbenchPart#setFocus()
     */
    @Override
    public void setFocus() {
        scrolledForm.getBody().setFocus();
    }

    protected void fillFormToolBar() {
        toolkit.decorateFormHeading(scrolledForm);
        IToolBarManager manager = scrolledForm.getToolBarManager();
        manager.add(applyAction);
        manager.update(true);
    }

    protected void createActions() {
        applyAction = new Action() {
            @Override
            public void run() {
                // chain all page's commands
                Command cmd = overviewPage.createApplyCommand();
                cmd = cmd.chain(configurationPage.createApplyCommand());
                cmd = cmd.chain(inputPage.createApplyCommand());

                // execute compound command
                currentSelection.getViewer().getEditDomain().getCommandStack().execute(cmd);

                applyAction.setEnabled(false);
            }
        };
        applyAction.setText("Apply");
        applyAction.setEnabled(false);
    }

    protected void fillPages() {
        tabFolder = new CTabFolder(scrolledForm.getBody(), SWT.BOTTOM);

        // overview tab
        Composite overviewComposite = toolkit.createComposite(tabFolder);
        overviewComposite.setLayout(new FillLayout());
        CTabItem overviewTab = new CTabItem(tabFolder, SWT.FLAT);
        overviewTab.setControl(overviewComposite);
        overviewTab.setText("Overview");
        overviewPage = new OverviewPage(toolkit, overviewComposite);
        overviewPage.setModificationHook(modificationHook);

        // configuration tab
        Composite configurationComposite = toolkit.createComposite(tabFolder);
        configurationComposite.setLayout(new FillLayout());
        CTabItem configurationTab = new CTabItem(tabFolder, SWT.FLAT);
        configurationTab.setControl(configurationComposite);
        configurationTab.setText("Configuration");
        configurationPage = new ConfigurationPage(toolkit, configurationComposite);
        configurationPage.setModificationHook(modificationHook);

        // input tab
        Composite inputComposite = toolkit.createComposite(tabFolder);
        inputComposite.setLayout(new FillLayout());
        CTabItem inputTab = new CTabItem(tabFolder, SWT.FLAT);
        inputTab.setControl(inputComposite);
        inputTab.setText("Input");
        inputPage = new InputPage(toolkit, inputComposite);
        inputPage.setModificationHook(modificationHook);

        tabFolder.setSelection(overviewTab);
    }
}