/**
 * Copyright 2009 Red Hat, Inc.
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package org.safehaus.penrose.studio.source.editor;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.forms.widgets.Section;
import org.safehaus.penrose.source.FieldConfig;
import org.safehaus.penrose.studio.PenroseImage;
import org.safehaus.penrose.studio.PenroseStudio;
import org.safehaus.penrose.studio.dialog.ErrorDialog;

import java.util.Collection;

public class SourceFieldsPage extends SourceEditorPage {

	Table fieldsTable;

    public SourceFieldsPage(SourceEditor editor) {
        super(editor, "FIELDS", "Fields");
    }

    public void createFormContent(IManagedForm managedForm) {
        super.createFormContent(managedForm);

        ScrolledForm form = managedForm.getForm();

        Composite body = form.getBody();
        body.setLayout(new GridLayout());

        Section fieldsSection = toolkit.createSection(body, Section.TITLE_BAR | Section.EXPANDED);
        fieldsSection.setText("Fields");
        fieldsSection.setLayoutData(new GridData(GridData.FILL_BOTH));

        Control fieldsControl = createFieldsControl(fieldsSection);
        fieldsSection.setClient(fieldsControl);

        refresh();
    }

    public Composite createFieldsControl(final Composite parent) {

        Composite composite = toolkit.createComposite(parent);
        composite.setLayout(new GridLayout(2, false));

        Composite leftControl = createFieldsLeftControl(composite);
        leftControl.setLayoutData(new GridData(GridData.FILL_BOTH));

        Composite rightControl = createPropertiesRightControl(composite);
        GridData gd = new GridData(GridData.FILL_VERTICAL);
        gd.widthHint = 100;
        rightControl.setLayoutData(gd);

        return composite;
    }

    public Composite createFieldsLeftControl(final Composite parent) {

		fieldsTable = toolkit.createTable(parent, SWT.BORDER | SWT.FULL_SELECTION | SWT.CHECK | SWT.MULTI);
        fieldsTable.setHeaderVisible(true);
        fieldsTable.setLinesVisible(true);
        fieldsTable.setLayoutData(new GridData(GridData.FILL_BOTH));

        TableColumn tc = new TableColumn(fieldsTable, SWT.NONE);
        tc.setText("Name");
        tc.setWidth(250);

        tc = new TableColumn(fieldsTable, SWT.NONE);
        tc.setText("Alias");
        tc.setWidth(200);

        tc = new TableColumn(fieldsTable, SWT.NONE);
        tc.setText("Type");
        tc.setWidth(100);

		return fieldsTable;
	}

    public Composite createPropertiesRightControl(final Composite parent) {

        Composite composite = toolkit.createComposite(parent);

        GridLayout layout = new GridLayout();
        layout.marginWidth = 0;
        layout.marginHeight = 0;
        composite.setLayout(layout);

        Button editButton = new Button(composite, SWT.PUSH);
		editButton.setText("Edit");
        editButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        editButton.addSelectionListener(new SelectionAdapter() {
            public void widgetSelected(SelectionEvent event) {
                try {
                    edit();

                } catch (Exception e) {
                    log.error(e.getMessage(), e);
                    ErrorDialog.open(e);
                }
            }
        });

        return composite;
    }

    public void edit() throws Exception {
    }

    public void refresh() {
        fieldsTable.removeAll();

        Collection<FieldConfig> fieldConfigs = sourceConfig.getFieldConfigs();
        for (FieldConfig fieldConfig : fieldConfigs) {

            TableItem item = new TableItem(fieldsTable, SWT.CHECK);
            item.setChecked(fieldConfig.isPrimaryKey());
            item.setImage(PenroseStudio.getImage(fieldConfig.isPrimaryKey() ? PenroseImage.KEY : PenroseImage.NOKEY));
            item.setText(0, fieldConfig.getName().equals(fieldConfig.getOriginalName()) ? fieldConfig.getName() : fieldConfig.getOriginalName());
            item.setText(1, fieldConfig.getName().equals(fieldConfig.getOriginalName()) ? "" : fieldConfig.getName());
            item.setText(2, fieldConfig.getType());
            item.setData(fieldConfig);
        }
    }

    public void checkDirty() {
    }
}