Java tutorial
/** * This file is part of mycollab-web. * * mycollab-web 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 3 of the License, or * (at your option) any later version. * * mycollab-web 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 mycollab-web. If not, see <http://www.gnu.org/licenses/>. */ package com.esofthead.mycollab.module.project.ui.components; import com.vaadin.data.Buffered; import com.vaadin.data.Property; import com.vaadin.data.Validator; import com.vaadin.shared.ui.slider.SliderOrientation; import com.vaadin.ui.Component; import com.vaadin.ui.CustomField; import com.vaadin.ui.Label; import com.vaadin.ui.Slider; import org.vaadin.viritin.layouts.MHorizontalLayout; /** * @author MyCollab Ltd. * @since 1.0 */ public class TaskSliderField extends CustomField<Double> { private static final long serialVersionUID = 1L; private Slider slider; private MHorizontalLayout body; private Label progressLbl; public TaskSliderField() { progressLbl = new Label(); progressLbl.setWidthUndefined(); slider = new Slider(); slider.setOrientation(SliderOrientation.HORIZONTAL); slider.setImmediate(true); slider.setWidth("150px"); slider.addValueChangeListener(new ValueChangeListener() { @Override public void valueChange(Property.ValueChangeEvent valueChangeEvent) { Double value = (Double) valueChangeEvent.getProperty().getValue(); if (value != null) { double roundValue = Math.ceil(value / 10) * 10; slider.setValue(roundValue); progressLbl.setValue(roundValue + "%"); setInternalValue(roundValue); } else { slider.setValue(0d); progressLbl.setValue("0%"); setInternalValue(0d); } } }); body = new MHorizontalLayout(slider, progressLbl); } @Override public void setPropertyDataSource(Property newDataSource) { Double value = (Double) newDataSource.getValue(); if (value != null) { double roundValue = Math.ceil(value / 10) * 10; newDataSource.setValue(roundValue); slider.setPropertyDataSource(newDataSource); progressLbl.setValue(roundValue + "%"); } super.setPropertyDataSource(newDataSource); } @Override public boolean isModified() { return slider.isModified(); } @Override public void setBuffered(boolean buffered) { slider.setBuffered(buffered); } @Override protected Component initContent() { return body; } @Override public void commit() throws SourceException, Validator.InvalidValueException { Double value = slider.getValue(); setInternalValue(value); super.commit(); } @Override public Class<? extends Double> getType() { return Double.class; } }