/*
 * Copyright (c) 2004-2011 Marco Maccaferri 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:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.ui.internal.charts.views;

import java.util.Date;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.nebula.widgets.cdatetime.CDT;
import org.eclipse.nebula.widgets.cdatetime.CDateTime;
import org.eclipse.swt.SWT;
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.swt.widgets.Shell;
import org.eclipsetrader.core.feed.TimeSpan;
import org.eclipsetrader.ui.Util;

public class CustomPeriodDialog extends Dialog {

    private CDateTime from;
    private CDateTime to;
    private ComboViewer resolution;

    private Date firstDate;
    private Date lastDate;
    private TimeSpan resolutionTimeSpan;

    public CustomPeriodDialog(Shell parentShell, Date firstDate, Date lastDate) {
        super(parentShell);
        this.firstDate = firstDate;
        this.lastDate = lastDate;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.window.Window#configureShell(org.eclipse.swt.widgets.Shell)
     */
    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(Messages.CustomPeriodDialog_CustomPeriodTitle);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createDialogArea(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createDialogArea(Composite parent) {
        parent = (Composite) super.createDialogArea(parent);

        Composite content = new Composite(parent, SWT.NONE);
        GridLayout gridLayout = new GridLayout(4, false);
        gridLayout.marginHeight = gridLayout.marginWidth = 0;
        content.setLayout(gridLayout);
        content.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true));

        Label label = new Label(content, SWT.NONE);
        label.setText(Messages.CustomPeriodDialog_BeginDateLabel);
        from = new CDateTime(content, CDT.BORDER | CDT.DATE_SHORT | CDT.DROP_DOWN | CDT.TAB_FIELDS);
        from.setPattern(Util.getDateFormatPattern());

        label = new Label(content, SWT.NONE);
        label.setText(Messages.CustomPeriodDialog_EndDateLabel);
        to = new CDateTime(content, CDT.BORDER | CDT.DATE_SHORT | CDT.DROP_DOWN | CDT.TAB_FIELDS);
        to.setPattern(Util.getDateFormatPattern());

        label = new Label(content, SWT.NONE);
        label.setText(Messages.CustomPeriodDialog_ResolutionLabel);
        resolution = new ComboViewer(content, SWT.DROP_DOWN | SWT.READ_ONLY);
        resolution.setLabelProvider(new LabelProvider());
        resolution.setContentProvider(new ArrayContentProvider());
        resolution.setSorter(new ViewerSorter());
        resolution.setInput(new Object[] {
                TimeSpan.days(1),
                TimeSpan.minutes(1),
                TimeSpan.minutes(5),
                TimeSpan.minutes(10),
                TimeSpan.minutes(15),
                TimeSpan.minutes(30),
                TimeSpan.minutes(60),
        });

        from.setSelection(firstDate);
        to.setSelection(lastDate);
        resolution.setSelection(new StructuredSelection(resolutionTimeSpan));

        return content;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#okPressed()
     */
    @Override
    protected void okPressed() {
        firstDate = from.getSelection();
        lastDate = to.getSelection();
        resolutionTimeSpan = (TimeSpan) ((IStructuredSelection) resolution.getSelection()).getFirstElement();
        super.okPressed();
    }

    public Date getFirstDate() {
        return firstDate;
    }

    public Date getLastDate() {
        return lastDate;
    }
}