com.bdaum.zoom.ui.internal.dialogs.VocabEnforceDialog.java Source code

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Here is the source code for com.bdaum.zoom.ui.internal.dialogs.VocabEnforceDialog.java

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/*
 * This file is part of the ZoRa project: http://www.photozora.org.
 *
 * ZoRa is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * ZoRa is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ZoRa; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * (c) 2017 Berthold Daum  
 */

package com.bdaum.zoom.ui.internal.dialogs;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
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.Shell;

import com.bdaum.zoom.css.ZColumnLabelProvider;
import com.bdaum.zoom.ui.dialogs.ZTitleAreaDialog;
import com.bdaum.zoom.ui.internal.UiUtilities;
import com.bdaum.zoom.ui.internal.ZViewerComparator;
import com.bdaum.zoom.ui.internal.widgets.RadioButtonGroup;

public class VocabEnforceDialog extends ZTitleAreaDialog {

    private List<String[]> changes;
    private CheckboxTableViewer viewer;
    private Object[] checkedElements;
    private RadioButtonGroup buttonGroup;
    private int policy;

    public VocabEnforceDialog(Shell parentShell, List<String[]> changes) {
        super(parentShell);
        this.changes = changes;
    }

    @Override
    public void create() {
        super.create();
        setTitle(Messages.VocabEnforceDialog_preview);
        setMessage(Messages.VocabEnforceDialog_unmark_changes);
    }

    @SuppressWarnings("unused")
    @Override
    protected Control createDialogArea(Composite parent) {
        Composite area = (Composite) super.createDialogArea(parent);
        Composite composite = new Composite(area, SWT.NONE);
        composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        composite.setLayout(new GridLayout(2, false));
        viewer = CheckboxTableViewer.newCheckList(composite, SWT.BORDER | SWT.V_SCROLL);
        GridData layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
        layoutData.heightHint = 400;
        layoutData.widthHint = 250;
        viewer.getTable().setLayoutData(layoutData);
        viewer.setContentProvider(ArrayContentProvider.getInstance());
        viewer.setLabelProvider(new ZColumnLabelProvider() {
            @Override
            public String getText(Object element) {
                if (element instanceof String[]) {
                    String[] change = (String[]) element;
                    if (change[1] == null)
                        return NLS.bind(Messages.VocabEnforceDialog_delete, change[0]);
                    return NLS.bind(Messages.VocabEnforceDialog_replace, change[0], change[1]);
                }
                return null;
            }
        });
        viewer.setComparator(new ZViewerComparator() {
            @Override
            public int compare(Viewer viewer, Object o1, Object o2) {
                if (o1 instanceof String[] && o2 instanceof String[])
                    return UiUtilities.stringComparator.compare(((String[]) o1)[0], ((String[]) o2)[0]);
                return super.compare(viewer, o1, o2);
            }
        });
        viewer.setInput(changes);
        viewer.setAllChecked(true);
        new AllNoneGroup(composite, new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                viewer.setAllChecked(e.widget.getData() == AllNoneGroup.ALL);
            }
        });
        buttonGroup = new RadioButtonGroup(composite, null, SWT.HORIZONTAL,
                Messages.VocabEnforceDialog_apply_to_images, Messages.VocabEnforceDialog_apply_to_catalog);
        buttonGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1));
        buttonGroup.setSelection(0);
        return area;
    }

    @Override
    protected void okPressed() {
        checkedElements = viewer.getCheckedElements();
        policy = buttonGroup.getSelection() == 0 ? KeywordDeleteDialog.REMOVE : KeywordDeleteDialog.LEAVE;
        super.okPressed();
    }

    public List<String[]> getChanges() {
        List<String[]> result = new ArrayList<>(checkedElements.length);
        for (Object obj : checkedElements)
            if (obj instanceof String[])
                result.add((String[]) obj);
        return result;
    }

    public int getPolicy() {
        return policy;
    }

}