DateRangeComposite.java

/*******************************************************************************
 * Copyright (c) 2015, Daniel Ludin
 * 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:
 *     Daniel Ludin (ludin@hispeed.ch) - initial implementation
 *******************************************************************************/
package ch.gpb.elexis.cst.view.profileeditor;

import java.util.Calendar;
import java.util.Date;

import org.eclipse.nebula.widgets.cdatetime.CDT;
import org.eclipse.nebula.widgets.cdatetime.CDateTime;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Layout;
import org.eclipse.swt.widgets.Slider;
import org.eclipse.swt.widgets.Text;

import ch.gpb.elexis.cst.preferences.Messages;
import ch.gpb.elexis.cst.service.CstService;

public class DateRangeComposite extends CstComposite {

    Text txtCol1, txtCol2, txtCol3;
    Slider sldCol1, sldCol2, sldCol3;
    Label lblCol1, lblCol2, lblCol3, lblDiff1, lblDiff2, lblDiff3, lblMessage;

    CDateTime cdtValidFrom;
    CDateTime cdtPeriod1Start;
    CDateTime cdtPeriod1End;
    CDateTime cdtPeriod2Start;
    CDateTime cdtPeriod2End;
    CDateTime cdtPeriod3Start;
    CDateTime cdtPeriod3End;

    /** 
     * period1 = the most recent period 
     * period2 = the 2nd most recent period (middle one)
     * period1 = the 3rd most recent period (the oldest)
     * 
     */

    public DateRangeComposite(Composite parent, int style) {
	super(parent, style);


	InitDatesMouseAdapter initMouseAdapter = new InitDatesMouseAdapter();

	lblCol1 = new Label(this, SWT.NONE);
	lblCol1.addMouseListener(initMouseAdapter);

	lblCol1.setSize(300, 20);
	lblCol1.setText(Messages.Cst_Text_erste_Periode);

	cdtPeriod1Start = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblDiff1 = new Label(this, SWT.NONE);
	lblDiff1.setSize(30, 20);
	lblDiff1.setText(Messages.Cst_Text_difference);

	cdtPeriod1End = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblCol2 = new Label(this, SWT.NONE);
	lblCol2.setSize(300, 20);
	lblCol2.setText(Messages.Cst_Text_zweite_Periode);
	lblCol2.addMouseListener(initMouseAdapter);

	cdtPeriod2Start = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblDiff2 = new Label(this, SWT.NONE);
	lblDiff2.setSize(30, 20);
	lblDiff2.setText(Messages.Cst_Text_difference);

	cdtPeriod2End = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblCol3 = new Label(this, SWT.NONE);
	lblCol3.setSize(300, 20);
	lblCol3.setText(Messages.Cst_Text_dritte_Periode);
	lblCol3.addMouseListener(initMouseAdapter);

	cdtPeriod3Start = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblDiff3 = new Label(this, SWT.NONE);
	lblDiff3.setSize(30, 20);
	lblDiff3.setText(Messages.Cst_Text_difference);

	cdtPeriod3End = new CDateTime(this, CDT.BORDER | CDT.DROP_DOWN | CDT.DATE_MEDIUM | CDT.TEXT_TRAIL);

	lblMessage = new Label(this, SWT.NONE);
	GridData gdMessage = new GridData();
	gdMessage.horizontalSpan = 3;

	initDateWidgets();
	renderDiffLabels();

	cdtPeriod1End.setSelection(new Date());

	cdtPeriod1Start.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod1Start.getSelection().after(cdtPeriod1End.getSelection())) {

		    cdtPeriod1Start.setBackground(COLOR_RED);
		    cdtPeriod2End.setBackground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_startdate_enddate);
		    lblMessage.setForeground(COLOR_RED);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod1End.getSelection());
		    cal.add(Calendar.DATE, -1);
		    cdtPeriod1Start.setSelection(cal.getTime());
		    cdtPeriod2End.setSelection(cal.getTime());
		    lblMessage.setForeground(COLOR_RED);

		} else {
		    cdtPeriod2End.setSelection(cdtPeriod1Start.getSelection());
		    resetErrorMarkers();
		}

		renderDiffLabels();
	    }
	});

	cdtPeriod1End.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod1End.getSelection().before(cdtPeriod1Start.getSelection())) {
		    lblMessage.setForeground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_enddate_startdate);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod1End.getSelection());
		    cal.add(Calendar.DATE, 1);
		    cdtPeriod2End.setSelection(cal.getTime());
		    cdtPeriod1Start.setBackground(COLOR_RED);
		} else {
		    resetErrorMarkers();
		}
		renderDiffLabels();
	    }
	});

	cdtPeriod2Start.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod2Start.getSelection().after(cdtPeriod2End.getSelection())) {
		    cdtPeriod2Start.setBackground(COLOR_RED);
		    cdtPeriod3End.setBackground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_startdate_enddate);
		    lblMessage.setForeground(COLOR_RED);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod1End.getSelection());
		    cal.add(Calendar.DATE, -1);
		    cdtPeriod2Start.setSelection(cal.getTime());
		    cdtPeriod3End.setSelection(cal.getTime());
		    lblMessage.setForeground(COLOR_RED);

		} else {
		    cdtPeriod3End.setSelection(cdtPeriod2Start.getSelection());
		    resetErrorMarkers();
		}
		renderDiffLabels();
	    }
	});

	cdtPeriod2End.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod2End.getSelection().before(cdtPeriod2Start.getSelection())) {
		    lblMessage.setForeground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_enddate_startdate);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod2End.getSelection());
		    cal.add(Calendar.DATE, 1);
		    cdtPeriod3End.setSelection(cal.getTime());

		    cdtPeriod2Start.setBackground(COLOR_RED);

		} else if (cdtPeriod2End.getSelection().after(cdtPeriod1Start.getSelection())) {
		    lblMessage.setForeground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_enddate_startdate);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod1Start.getSelection());
		    cal.add(Calendar.DATE, -1);
		    cdtPeriod2End.setSelection(cal.getTime());

		    cdtPeriod1Start.setBackground(COLOR_RED);
		} else {
		    resetErrorMarkers();
		}
		renderDiffLabels();

	    }
	});

	cdtPeriod3Start.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod3Start.getSelection().after(cdtPeriod3End.getSelection())) {

		    cdtPeriod3Start.setBackground(COLOR_RED);
		    cdtPeriod3End.setBackground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_startdate_enddate);
		    lblMessage.setForeground(COLOR_RED);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod1End.getSelection());
		    cal.add(Calendar.DATE, -1);
		    cdtPeriod3Start.setSelection(cal.getTime());
		    lblMessage.setForeground(COLOR_RED);

		} else {
		    resetErrorMarkers();
		}
		renderDiffLabels();

	    }

	});

	cdtPeriod3End.addSelectionListener(new SelectionAdapter() {

	    public void widgetSelected(SelectionEvent e) {
		if (cdtPeriod3End.getSelection().before(cdtPeriod3Start.getSelection())) {
		    lblMessage.setForeground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_enddate_startdate);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod3End.getSelection());
		    cal.add(Calendar.DATE, 1);
		    cdtPeriod3End.setSelection(cal.getTime());
		    cdtPeriod3Start.setBackground(COLOR_RED);

		} else if (cdtPeriod3End.getSelection().after(cdtPeriod2Start.getSelection())) {
		    lblMessage.setForeground(COLOR_RED);
		    lblMessage.setText(Messages.Cst_Text_error_enddate_startdate);

		    Calendar cal = Calendar.getInstance();
		    cal.setTime(cdtPeriod2Start.getSelection());
		    cal.add(Calendar.DATE, -1);
		    cdtPeriod3End.setSelection(cal.getTime());

		    cdtPeriod2Start.setBackground(COLOR_RED);
		} else {
		    resetErrorMarkers();
		}
		renderDiffLabels();
	    }
	});

	setLayout(new PictureLabelLayout());

    }

    class InitDatesMouseAdapter extends MouseAdapter {
	@Override
	public void mouseDown(MouseEvent e) {
	    initDateWidgets();
	}

    }

    private void resetErrorMarkers() {
	cdtPeriod1Start.setBackground(BLACK);
	cdtPeriod1End.setBackground(BLACK);

	cdtPeriod2Start.setBackground(BLACK);
	cdtPeriod2End.setBackground(BLACK);

	cdtPeriod3Start.setBackground(BLACK);
	cdtPeriod3End.setBackground(BLACK);

	lblMessage.setText("");
	lblMessage.setForeground(BLACK);

    }

    private void renderDiffLabels() {
	if (cdtPeriod1Start.getSelection().before(cdtPeriod1End.getSelection())) {
	    int days = CstService.getDaysBetweenDates(cdtPeriod1Start.getSelection(), cdtPeriod1End.getSelection());
	    lblDiff1.setText(String.valueOf(days));
	}

	if (cdtPeriod2Start.getSelection().before(cdtPeriod2End.getSelection())) {
	    int days = CstService.getDaysBetweenDates(cdtPeriod2Start.getSelection(), cdtPeriod2End.getSelection());
	    lblDiff2.setText(String.valueOf(days));
	}

	if (cdtPeriod3Start.getSelection().before(cdtPeriod3End.getSelection())) {
	    int days = CstService.getDaysBetweenDates(cdtPeriod3Start.getSelection(), cdtPeriod3End.getSelection());
	    lblDiff3.setText(String.valueOf(days));
	}

    }

    public void initDateWidgets() {
	Calendar cal = Calendar.getInstance();
	cdtPeriod1End.setSelection(cal.getTime());

	cal.add(Calendar.DATE, -365);
	cdtPeriod1Start.setSelection(cal.getTime());
	cdtPeriod2End.setSelection(cal.getTime());

	cal.add(Calendar.DATE, -365);
	cdtPeriod2Start.setSelection(cal.getTime());
	cdtPeriod3End.setSelection(cal.getTime());

	cal.add(Calendar.DATE, -365);
	cdtPeriod3Start.setSelection(cal.getTime());
    }

    public void setDateStartPeriod1(Date date) {
	this.cdtPeriod1Start.setSelection(date);
    }

    public Date getDateStartPeriod1() {
	return this.cdtPeriod1Start.getSelection();
    }

    public void setDateEndPeriod1(Date date) {
	this.cdtPeriod1End.setSelection(date);
    }

    public Date getDateEndPeriod1() {
	return this.cdtPeriod1End.getSelection();
    }

    public void setDateStartPeriod2(Date date) {
	this.cdtPeriod2Start.setSelection(date);
    }

    public Date getDateStartPeriod2() {
	return this.cdtPeriod2Start.getSelection();
    }

    public void setDateEndPeriod2(Date date) {
	this.cdtPeriod2End.setSelection(date);
    }

    public Date getDateEndPeriod2() {
	return this.cdtPeriod2End.getSelection();
    }

    public void setDateStartPeriod3(Date date) {
	this.cdtPeriod3Start.setSelection(date);
    }

    public Date getDateStartPeriod3() {
	return this.cdtPeriod3Start.getSelection();
    }

    public void setDateEndPeriod3(Date date) {
	this.cdtPeriod3End.setSelection(date);
    }

    public Date getDateEndPeriod3() {
	return this.cdtPeriod3End.getSelection();
    }

    public void setLabelColor(Color color) {
	lblCol1.setForeground(color);
	lblCol2.setForeground(color);
	lblCol3.setForeground(color);
    }

}

class PictureLabelLayout extends Layout {
    Point iExtent, tExtent, extentLabel1, extentSlider1, extentText1; // the cached sizes

    protected Point computeSize(Composite composite, int wHint, int hHint, boolean changed) {
	return new Point(500, 150);
    }

    protected void layout(Composite composite, boolean changed) {

	Control[] children = composite.getChildren();

	children[0].setBounds(5, 13, 150, 20);
	children[1].setBounds(155, 10, 150, 20);
	children[2].setBounds(315, 13, 30, 20);
	children[3].setBounds(345, 10, 150, 20);

	children[4].setBounds(5, 43, 150, 20);
	children[5].setBounds(155, 40, 150, 20);
	children[6].setBounds(315, 43, 30, 20);
	children[7].setBounds(345, 40, 150, 20);

	children[8].setBounds(5, 73, 150, 20);
	children[9].setBounds(155, 70, 150, 20);
	children[10].setBounds(315, 73, 30, 20);
	children[11].setBounds(345, 70, 150, 20);

	children[12].setBounds(160, 95, 300, 20);

    }
}