com.softberries.klerk.gui.editors.SingleObjectEditor.java Source code

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Here is the source code for com.softberries.klerk.gui.editors.SingleObjectEditor.java

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/*******************************************************************************
 * Copyright (c) 2011 Softberries Krzysztof Grajek.
 * 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:
 *     Softberries Krzysztof Grajek - initial API and implementation
 ******************************************************************************/
package com.softberries.klerk.gui.editors;

import org.eclipse.core.databinding.Binding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.validation.IValidator;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.databinding.fieldassist.ControlDecorationSupport;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.ToolBar;
import org.eclipse.ui.actions.ActionFactory;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;
import org.eclipse.ui.part.EditorPart;

public abstract class SingleObjectEditor extends EditorPart {

    protected final FormToolkit toolkit = new FormToolkit(Display.getDefault());
    protected ScrolledForm form;
    protected boolean dirty;

    @Override
    public void doSaveAs() {
    }

    @Override
    public boolean isDirty() {
        return dirty;
    }

    @Override
    public boolean isSaveAsAllowed() {
        return false;
    }

    protected void createSectionToolbar(Section section, FormToolkit toolkit) {
        ToolBarManager toolBarManager = new ToolBarManager(SWT.FLAT);
        ToolBar toolbar = toolBarManager.createControl(section);
        final Cursor handCursor = new Cursor(Display.getCurrent(), SWT.CURSOR_HAND);
        toolbar.setCursor(handCursor);
        // Cursor needs to be explicitly disposed
        toolbar.addDisposeListener(new DisposeListener() {
            @Override
            public void widgetDisposed(DisposeEvent e) {
                if ((handCursor != null) && (handCursor.isDisposed() == false)) {
                    handCursor.dispose();
                }
            }
        });

        // save
        ActionContributionItem saveMenuAction = new ActionContributionItem(
                ActionFactory.SAVE.create(getEditorSite().getWorkbenchWindow()));
        toolBarManager.add(saveMenuAction);
        toolBarManager.update(true);

        section.setTextClient(toolbar);
    }

    protected void bindValidator(Text field, Object obj, String property, IValidator validator) {
        DataBindingContext bindingContext = new DataBindingContext();
        UpdateValueStrategy ttm = new UpdateValueStrategy();
        ttm.setBeforeSetValidator(validator);
        //
        IObservableValue countryTxtObserveTextObserveWidget = SWTObservables.observeText(field, SWT.Modify);
        IObservableValue currentAddressCountryObserveValue = PojoObservables.observeValue(obj, property);
        Binding binding = bindingContext.bindValue(countryTxtObserveTextObserveWidget,
                currentAddressCountryObserveValue, ttm, null);
        ControlDecorationSupport.create(binding, SWT.TOP | SWT.LEFT);

    }

    @Override
    public void setFocus() {

    }

    protected abstract void enableSave(boolean drt);
}