diff -r 1612dbcec451 -r 639991d0808a java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/ChartMapTag.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/java/cewolf-1.0/src/main/java/de/laures/cewolf/taglib/tags/ChartMapTag.java Sat Feb 28 21:31:02 2009 +0100
@@ -0,0 +1,272 @@
+/* ================================================================
+ * Cewolf : Chart enabling Web Objects Framework
+ * ================================================================
+ *
+ * Project Info: http://cewolf.sourceforge.net
+ * Project Lead: Guido Laures (guido@laures.de);
+ *
+ * (C) Copyright 2002, by Guido Laures
+ *
+ * This library is free software; you can redistribute it and/or modify it under the terms
+ * of the GNU Lesser General Public License as published by the Free Software Foundation;
+ * either version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with this
+ * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+package de.laures.cewolf.taglib.tags;
+
+import java.io.IOException;
+import java.io.Writer;
+import java.util.Iterator;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.jsp.JspException;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.jfree.chart.ChartRenderingInfo;
+import org.jfree.chart.entity.CategoryItemEntity;
+import org.jfree.chart.entity.ChartEntity;
+import org.jfree.chart.entity.LegendItemEntity;
+import org.jfree.chart.entity.PieSectionEntity;
+import org.jfree.chart.entity.XYItemEntity;
+import org.jfree.data.category.CategoryDataset;
+import org.jfree.data.general.Dataset;
+import org.jfree.data.general.PieDataset;
+import org.jfree.data.xy.XYDataset;
+
+import de.laures.cewolf.CewolfException;
+import de.laures.cewolf.Configuration;
+import de.laures.cewolf.links.CategoryItemLinkGenerator;
+import de.laures.cewolf.links.LinkGenerator;
+import de.laures.cewolf.links.PieSectionLinkGenerator;
+import de.laures.cewolf.links.XYItemLinkGenerator;
+import de.laures.cewolf.taglib.util.BrowserDetection;
+import de.laures.cewolf.taglib.util.PageUtils;
+import de.laures.cewolf.tooltips.CategoryToolTipGenerator;
+import de.laures.cewolf.tooltips.PieToolTipGenerator;
+import de.laures.cewolf.tooltips.ToolTipGenerator;
+import de.laures.cewolf.tooltips.XYToolTipGenerator;
+
+/**
+ * Tag <map> which defines the tooltip and link tags.
+ * @see DataTag
+ * @author Guido Laures
+ */
+public class ChartMapTag extends CewolfTag {
+
+ private static final long serialVersionUID = -3742340487378471159L;
+
+ private static final Log LOG = LogFactory.getLog(ChartMapTag.class);
+
+ ToolTipGenerator toolTipGenerator = null;
+ LinkGenerator linkGenerator = null;
+
+ // If the links provided by the JFreeChart renderer should be used.
+ boolean useJFreeChartLinkGenerator = false;
+ // If the tooltips provided by the JFreeChart renderer should be used.
+ boolean useJFreeChartTooltipGenerator = false;
+
+ public int doStartTag() throws JspException {
+ // Object linkGenerator = getLinkGenerator();
+ Mapped root = (Mapped) PageUtils.findRoot(this, pageContext);
+ root.enableMapping();
+ String chartId = ((CewolfRootTag) root).getChartId();
+ try {
+ Dataset dataset = PageUtils.getDataset(chartId, pageContext);
+ Writer out = pageContext.getOut();
+ final boolean isIE = BrowserDetection.isIE((HttpServletRequest) pageContext.getRequest());
+ if (hasToolTips()) {
+ enableToolTips(out, isIE);
+ }
+ out.write("");
+ } catch (IOException ioex) {
+ log.error(ioex);
+ throw new JspException(ioex.getMessage());
+ }
+ return doAfterEndTag(EVAL_PAGE);
+ }
+
+ public void reset() {
+ this.toolTipGenerator = null;
+ this.linkGenerator = null;
+ }
+
+ public void writeOutLink(Object linkGen, Dataset dataset, Writer out, ChartEntity ce) throws IOException {
+ final String link = generateLink(dataset, ce);
+
+ if (null != link) {
+ final String href = ((HttpServletResponse) pageContext.getResponse()).encodeURL(link);
+ out.write("HREF=\"" + href + "\"");
+ }
+ }
+
+ private void writeOutToolTip(Dataset dataset, Writer out, final boolean isIE, ChartEntity ce) throws IOException, JspException {
+ String toolTip = generateToolTip(dataset, ce);
+ if (null != toolTip) {
+ if (!isIE) {
+ out.write("ONMOUSEOVER=\"return overlib('"
+ + toolTip + "', WIDTH, '20');\" ONMOUSEOUT=\"return nd();\" ");
+ } else {
+ out.write("ALT=\"" + toolTip + "\" ");
+ }
+ }
+ }
+
+ public void enableToolTips(Writer out, final boolean isIE) throws IOException {
+ if (!PageUtils.isToolTipsEnabled(pageContext) && !isIE) {
+ Configuration config = Configuration.getInstance(pageContext.getServletContext());
+ String overLibURL = ChartImgTag.fixAbsolutURL(config.getOverlibURL(), pageContext);
+ out.write("\n");
+ out.write("\n");
+ PageUtils.setToolTipsEnabled(pageContext);
+ }
+ }
+
+ private String generateLink(Dataset dataset, ChartEntity ce) {
+ String link = null;
+ if (useJFreeChartLinkGenerator) {
+ link = ce.getURLText();
+ } else if (linkGenerator instanceof CategoryItemLinkGenerator || linkGenerator instanceof XYItemLinkGenerator || linkGenerator instanceof PieSectionLinkGenerator) {
+ if (linkGenerator instanceof CategoryItemLinkGenerator) {
+ if (ce instanceof CategoryItemEntity) {
+ CategoryItemEntity catEnt = (CategoryItemEntity) ce;
+ link = ((CategoryItemLinkGenerator) linkGenerator).generateLink(dataset, catEnt.getSeries(), catEnt.getCategory());
+ }
+ }
+ if (linkGenerator instanceof XYItemLinkGenerator) {
+ if (ce instanceof XYItemEntity) {
+ XYItemEntity xyEnt = (XYItemEntity) ce;
+ link = ((XYItemLinkGenerator) linkGenerator).generateLink(dataset, xyEnt.getSeriesIndex(), xyEnt.getItem());
+ } else {
+ // Note; there is a simple ChartEntity also passed since Jfreechart 1.0rc1, that is ignored
+ LOG.debug("Link entity skipped, not XYItemEntity.class:" + ce);
+ }
+ }
+ if (linkGenerator instanceof PieSectionLinkGenerator) {
+ if (ce instanceof PieSectionEntity) {
+ PieSectionEntity pieEnt = (PieSectionEntity) ce;
+ link = ((PieSectionLinkGenerator) linkGenerator).generateLink(dataset, pieEnt.getSectionKey());
+ }
+ }
+ }
+ return link;
+ }
+
+ private String generateToolTip(Dataset dataset, ChartEntity ce) throws JspException {
+ String tooltip = null;
+ if (useJFreeChartTooltipGenerator) {
+ tooltip = ce.getToolTipText();
+ } else if (toolTipGenerator instanceof CategoryToolTipGenerator || toolTipGenerator instanceof XYToolTipGenerator || toolTipGenerator instanceof PieToolTipGenerator) {
+ if (toolTipGenerator instanceof CategoryToolTipGenerator) {
+ if (ce instanceof CategoryItemEntity) {
+ CategoryItemEntity catEnt = (CategoryItemEntity) ce;
+ tooltip = ((CategoryToolTipGenerator) toolTipGenerator).generateToolTip((CategoryDataset) dataset, catEnt.getSeries(), catEnt.getCategoryIndex());
+ }
+ }
+
+ if (toolTipGenerator instanceof XYToolTipGenerator) {
+ if (ce instanceof XYItemEntity) {
+ XYItemEntity xyEnt = (XYItemEntity) ce;
+ tooltip = ((XYToolTipGenerator) toolTipGenerator).generateToolTip((XYDataset) dataset, xyEnt.getSeriesIndex(), xyEnt.getItem());
+ }
+ }
+
+ if (toolTipGenerator instanceof PieToolTipGenerator) {
+ if (ce instanceof PieSectionEntity) {
+ PieSectionEntity pieEnt = (PieSectionEntity) ce;
+ PieDataset ds = (PieDataset) dataset;
+ final int index = pieEnt.getSectionIndex();
+ tooltip = ((PieToolTipGenerator) toolTipGenerator).generateToolTip(ds, ds.getKey(index), index);
+ }
+ }
+ } else {
+ // throw because category is unknown
+ throw new JspException(
+ "TooltipgGenerator of class " + toolTipGenerator.getClass().getName() + " does not implement the appropriate TooltipGenerator interface for entity type " + ce.getClass().getName());
+ }
+ return tooltip;
+ }
+
+ private boolean hasToolTips() throws JspException {
+ if (toolTipGenerator!=null && useJFreeChartTooltipGenerator) {
+ throw new JspException("Can't have both tooltipGenerator and useJFreeChartTooltipGenerator parameters specified!");
+ }
+ return toolTipGenerator != null || useJFreeChartTooltipGenerator;
+ }
+
+ public void setTooltipgeneratorid(String id) {
+ this.toolTipGenerator = (ToolTipGenerator) pageContext.findAttribute(id);
+ }
+
+ private boolean hasLinks() throws JspException {
+ if (linkGenerator!=null && useJFreeChartLinkGenerator) {
+ throw new JspException("Can't have both linkGenerator and useJFreeChartLinkGenerator parameters specified!");
+ }
+ return linkGenerator != null || useJFreeChartLinkGenerator;
+ }
+
+ public void setLinkgeneratorid(String id) {
+ this.linkGenerator = (LinkGenerator) pageContext.findAttribute(id);
+ }
+
+ /**
+ * Setter of the useJFreeChartLinkGenerator field.
+ * @param useJFreeChartLinkGenerator the useJFreeChartLinkGenerator to set.
+ */
+ public void setUseJFreeChartLinkGenerator(boolean useJFreeChartLinkGenerator) {
+ this.useJFreeChartLinkGenerator = useJFreeChartLinkGenerator;
+ }
+ /**
+ * Setter of the useJFreeChartTooltipGenerator field.
+ * @param useJFreeChartTooltipGenerator the useJFreeChartTooltipGenerator to set.
+ */
+ public void setUseJFreeChartTooltipGenerator(boolean useJFreeChartTooltipGenerator) {
+ this.useJFreeChartTooltipGenerator = useJFreeChartTooltipGenerator;
+ }
+
+}