org.activiti.designer.property.extension.field.CustomPropertyDatePickerField.java Source code

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Here is the source code for org.activiti.designer.property.extension.field.CustomPropertyDatePickerField.java

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/* 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 org.activiti.designer.property.extension.field;

import java.lang.reflect.Field;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.activiti.designer.bpmn2.model.ServiceTask;
import org.activiti.designer.integration.servicetask.PropertyType;
import org.activiti.designer.integration.servicetask.annotation.DatePickerProperty;
import org.activiti.designer.integration.servicetask.validator.RequiredFieldValidator;
import org.activiti.designer.property.PropertyCustomServiceTaskSection;
import org.apache.commons.lang.StringUtils;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.DateTime;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;

/**
 * @author Tiese Barrell
 * @since 0.7.0
 * @version 1
 */
public class CustomPropertyDatePickerField extends AbstractCustomPropertyField {

    private DateTime calendarControl;
    private SimpleDateFormat sdf;

    public CustomPropertyDatePickerField(final PropertyCustomServiceTaskSection section,
            final ServiceTask serviceTask, final Field field) {
        super(section, serviceTask, field);
    }

    @Override
    public PropertyType getPrimaryPropertyType() {
        return PropertyType.TEXT;
    }

    @Override
    public void refresh() {

        final String value = getSimpleValueOrDefault();

        if (StringUtils.isNotBlank(value)) {
            Date date;
            try {
                date = sdf.parse(value);
                final Calendar calendar = Calendar.getInstance();
                calendar.clear();
                calendar.setTime(date);

                // set fields
                calendarControl.setYear(calendar.get(Calendar.YEAR));
                calendarControl.setMonth(calendar.get(Calendar.MONTH));
                calendarControl.setDay(calendar.get(Calendar.DAY_OF_MONTH));
                calendarControl.setHours(calendar.get(Calendar.HOUR_OF_DAY));
                calendarControl.setMinutes(calendar.get(Calendar.MINUTE));
                calendarControl.setSeconds(calendar.get(Calendar.SECOND));
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
    }

    @Override
    public String getSimpleValue() {
        final Calendar calendar = Calendar.getInstance();
        calendar.clear();
        calendar.set(Calendar.YEAR, calendarControl.getYear());
        calendar.set(Calendar.MONTH, calendarControl.getMonth());
        calendar.set(Calendar.DAY_OF_MONTH, calendarControl.getDay());
        calendar.set(Calendar.HOUR_OF_DAY, calendarControl.getHours());
        calendar.set(Calendar.MINUTE, calendarControl.getMinutes());
        calendar.set(Calendar.SECOND, calendarControl.getSeconds());
        return sdf.format(calendar.getTime());
    }

    @Override
    public Composite render(final Composite parent, final TabbedPropertySheetWidgetFactory factory,
            final FocusListener listener) {

        final Composite result = factory.createFlatFormComposite(parent);
        FormData data;

        int controlStyle = SWT.CALENDAR;

        final DatePickerProperty datePickerPropertyAnnotation = getField().getAnnotation(DatePickerProperty.class);
        if (datePickerPropertyAnnotation != null) {
            sdf = new SimpleDateFormat(datePickerPropertyAnnotation.dateTimePattern());
            controlStyle = datePickerPropertyAnnotation.swtStyle();
        } else {
            sdf = new SimpleDateFormat(DatePickerProperty.DEFAULT_DATE_TIME_PATTERN);
            controlStyle = DatePickerProperty.DEFAULT_DATE_TIME_CONTROL_STYLE;
        }

        calendarControl = new DateTime(result, controlStyle | SWT.BORDER_SOLID);
        calendarControl.setEnabled(true);

        if (getPropertyAnnotation().required()) {
            addFieldValidator(calendarControl, RequiredFieldValidator.class);
        }

        if (getPropertyAnnotation().fieldValidator() != null) {
            addFieldValidator(calendarControl, getPropertyAnnotation().fieldValidator());
        }

        calendarControl.addFocusListener(listener);

        data = new FormData();
        data.left = new FormAttachment(0);
        data.top = new FormAttachment(0);
        data.right = new FormAttachment(100);
        calendarControl.setLayoutData(data);

        return result;
    }
}