com.google.sampling.experiential.client.WeekDayPanel.java Source code

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Here is the source code for com.google.sampling.experiential.client.WeekDayPanel.java

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/*
* Copyright 2011 Google Inc. All Rights Reserved.
* 
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance  with the License.  
* You may obtain a copy of the License at
*
*    http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.google.sampling.experiential.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Grid;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.paco.shared.model.SignalScheduleDAO;

/**
 * Panel that allows selection of days of week to schedule an experiment.
 * 
 * @author Bob Evans
 *
 */
public class WeekDayPanel extends Composite {

    private CheckBox checkBoxSun;
    private CheckBox checkBoxMon;
    private CheckBox checkBoxTue;
    private CheckBox checkBoxWed;
    private CheckBox checkBoxThu;
    private CheckBox checkBoxFri;
    private CheckBox checkBoxSat;
    private boolean multiSelect;
    private CheckBox[] checkBoxes;
    private SignalScheduleDAO schedule;

    public WeekDayPanel(boolean multiSelect, SignalScheduleDAO schedule) {
        MyConstants myConstants = GWT.create(MyConstants.class);
        this.schedule = schedule;
        this.multiSelect = multiSelect;
        VerticalPanel verticalPanel = new VerticalPanel();
        Grid grid = new Grid(2, 7);
        grid.setSize("102px", "49px");
        initWidget(verticalPanel);
        verticalPanel.add(grid);

        checkBoxSun = new CheckBox("");
        grid.setWidget(0, 0, checkBoxSun);
        checkBoxMon = new CheckBox("");
        grid.setWidget(0, 1, checkBoxMon);
        checkBoxTue = new CheckBox("");
        grid.setWidget(0, 2, checkBoxTue);
        checkBoxWed = new CheckBox("");
        grid.setWidget(0, 3, checkBoxWed);
        checkBoxThu = new CheckBox("");
        grid.setWidget(0, 4, checkBoxThu);
        checkBoxFri = new CheckBox("");
        grid.setWidget(0, 5, checkBoxFri);
        checkBoxSat = new CheckBox("");
        grid.setWidget(0, 6, checkBoxSat);

        grid.setText(1, 0, myConstants.sundayInitial());
        grid.setText(1, 1, myConstants.mondayInitial());
        grid.setText(1, 2, myConstants.tuesdayInitial());
        grid.setText(1, 3, myConstants.wednesdayInitial());
        grid.setText(1, 4, myConstants.thursdayInitial());
        grid.setText(1, 5, myConstants.fridayInitial());
        grid.setText(1, 6, myConstants.satdayInitial());
        checkBoxes = new CheckBox[7];
        checkBoxes[0] = checkBoxSun;
        checkBoxes[1] = checkBoxMon;
        checkBoxes[2] = checkBoxTue;
        checkBoxes[3] = checkBoxWed;
        checkBoxes[4] = checkBoxThu;
        checkBoxes[5] = checkBoxFri;
        checkBoxes[6] = checkBoxSat;

        setSelctedCheckboxes();

        checkBoxSun.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(0);
            }
        });
        checkBoxMon.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(1);
            }
        });
        checkBoxTue.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(2);
            }
        });
        checkBoxWed.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(3);
            }
        });
        checkBoxThu.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(4);
            }
        });
        checkBoxFri.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(5);
            }
        });
        checkBoxSat.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                selected(6);
            }
        });

    }

    private void setSelctedCheckboxes() {
        int daysScheduled = schedule.getWeekDaysScheduled();
        int bitsSet = 0;
        for (int i = 0; i < checkBoxes.length; i++) {
            // TODO this is slightly lame, but we select only the first day from the
            // schedule if the schedule was previously weekly with multiple days set.
            // and we are letting them pick the day of the month for monthly
            if (!multiSelect && bitsSet == 1) {
                break;
            }
            if ((daysScheduled & SignalScheduleDAO.DAYS_OF_WEEK[i]) == SignalScheduleDAO.DAYS_OF_WEEK[i]) {
                checkBoxes[i].setValue(Boolean.TRUE);
                bitsSet++;
            }
        }
    }

    protected void selected(int selected) {
        if (!multiSelect) {
            deselectOthers(selected);
        }
        updateSchedule();
    }

    private void updateSchedule() {
        int selected = 0;
        for (int i = 0; i < 7; i++) {
            if (checkBoxes[i].getValue() == Boolean.TRUE) {
                selected |= SignalScheduleDAO.DAYS_OF_WEEK[i];
            }
        }
        schedule.setWeekDaysScheduled(selected);
    }

    protected void deselectOthers(int selected) {
        for (int i = 0; i < 7; i++) {
            if (i == selected) {
                continue;
            }
            checkBoxes[i].setValue(Boolean.FALSE);
        }

    }

    public void setEnabled(boolean b) {
        for (int i = 0; i < checkBoxes.length; i++) {
            checkBoxes[i].setEnabled(b);
        }

    }
}