Java tutorial
/** * This file is part of mycollab-web-community. * * mycollab-web-community 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-community 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-community. If not, see <http://www.gnu.org/licenses/>. */ package com.esofthead.mycollab.community.ui.chart; import org.jfree.chart.JFreeChart; import com.esofthead.mycollab.core.arguments.SearchCriteria; import com.vaadin.ui.Alignment; import com.vaadin.ui.Component; import com.vaadin.ui.ComponentContainer; import com.vaadin.ui.CssLayout; import com.vaadin.ui.VerticalLayout; /** * * @author MyCollab Ltd. * @since 1.0 * * @param <S> */ public abstract class GenericChartWrapper<S extends SearchCriteria> extends VerticalLayout { private static final long serialVersionUID = 1L; public static final String[] CHART_COLOR_STR = { ColorConstants.BLUE, ColorConstants.GREEN, ColorConstants.ORANGE, ColorConstants.BLACK, ColorConstants.DARK_ORANGE, ColorConstants.LIGHT_BLUE, ColorConstants.GRAY, ColorConstants.BRIGHT_TURQUOISE, ColorConstants.LIGHT_GRAY, ColorConstants.CHERRY, ColorConstants.CONGO_PINK, ColorConstants.COFFFE, ColorConstants.COPPER, ColorConstants.RED, ColorConstants.LIGHTER_GREEN, ColorConstants.INDIAN_RED, ColorConstants.LAVENDER, ColorConstants.LEMON, ColorConstants.BROWN, ColorConstants.LIVER, ColorConstants.LION }; protected String title; protected int height; protected int width; protected S searchCriteria; public GenericChartWrapper(final String title, final int width, final int height) { this.width = width; this.height = height; this.title = title; } abstract protected JFreeChart createChart(); protected abstract ComponentContainer createLegendBox(); public void setSearchCriteria(final S criteria) { this.searchCriteria = criteria; final JFreeChart chart = createChart(); final JFreeChartWrapper chartWrapper = new JFreeChartWrapper(chart); removeAllComponents(); final CssLayout borderWrap = new CssLayout(); borderWrap.addComponent(chartWrapper); borderWrap.setStyleName("chart-wrapper"); borderWrap.setHeight(height + "px"); borderWrap.setWidth(width + "px"); chartWrapper.setHeight(height + "px"); chartWrapper.setWidth(width + "px"); chartWrapper.setGraphHeight(height); chartWrapper.setGraphWidth(width); this.addComponent(borderWrap); this.setComponentAlignment(borderWrap, Alignment.MIDDLE_CENTER); final Component legendBox = createLegendBox(); this.addComponent(legendBox); this.setComponentAlignment(legendBox, Alignment.MIDDLE_CENTER); } }