/*
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* Copyright 2011 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.wicket.charting;
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import java.text.MessageFormat;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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/**
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* Implementation of a Line chart using the flotr2 library
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*
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* @author Tim Ryan
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*
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*/
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public class Flotr2LineChart extends Chart {
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private static final long serialVersionUID = 1L;
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boolean xAxisIsDate = false;
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public Flotr2LineChart(String tagId, String title, String keyName,
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String valueName) {
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super(tagId, title, keyName, valueName);
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}
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@Override
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protected void appendChart(StringBuilder sb) {
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String dName = "data_" + dataName;
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sb.append("var labels_" + dataName + " = [");
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if(xAxisIsDate){
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// Generate labels for the dates
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SimpleDateFormat df = new SimpleDateFormat(dateFormat);
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df.setTimeZone(getTimeZone());
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for (int i = 0; i < values.size(); i++) {
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ChartValue value = values.get(i);
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Date date = new Date(Long.parseLong(value.name));
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String label = df.format(date);
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if(i > 0){
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sb.append(",");
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}
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sb.append("\"" + label + "\"");
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}
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}
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else {
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for (int i = 0; i < values.size(); i++) {
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ChartValue value = values.get(i);
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if(i > 0){
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sb.append(",");
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}
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sb.append("\"" + value.name + "\"");
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}
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}
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line(sb, "];");
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line(sb, MessageFormat.format("var {0} = Flotr.draw(document.getElementById(''{1}''),", dName, tagId));
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// Add the data
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line(sb, "[");
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line(sb, "{ data : [ ");
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for (int i = 0; i < values.size(); i++) {
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ChartValue value = values.get(i);
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if(i > 0){
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sb.append(",");
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}
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line(sb, MessageFormat.format("[{0}, {1}] ", value.name, Float.toString(value.value)));
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}
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line(sb, MessageFormat.format(" ], label : \"{0}\", lines : '{' show : true '}', color: ''#ff9900'' '}'", valueName));
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if(highlights.size() > 0){
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// get the highlights
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line(sb, ", { data : [ ");
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for (int i = 0; i < highlights.size(); i++) {
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ChartValue value = highlights.get(i);
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if(i > 0){
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sb.append(",");
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}
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line(sb, MessageFormat.format("[{0}, {1}] ", value.name, Float.toString(value.value)));
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}
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line(sb, MessageFormat.format(" ], label : \"{0}\", points : '{' show : true, fill: true, fillColor:''#002060'' '}', color: ''#ff9900'' '}'", valueName));
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}
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line(sb, "]");
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// Add the options
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line(sb, ", {");
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if(title != null && title.isEmpty() == false){
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line(sb, MessageFormat.format("title : \"{0}\",", title));
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}
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line(sb, "mouse: {");
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line(sb, " track: true,");
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line(sb, " lineColor: '#002060',");
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line(sb, " position: 'ne',");
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line(sb, " trackFormatter: function (obj) {");
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line(sb, " return labels_" + dataName + "[obj.index] + ': ' + parseInt(obj.y) + ' ' + obj.series.label;");
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line(sb, " }");
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line(sb, "},");
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line(sb, "xaxis: {");
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line(sb, " showLabels: false,");
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line(sb, " showMinorLabels: false,");
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line(sb, " autoscale: true,");
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line(sb, " autoscaleMargin: 0,");
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line(sb, " margin: 10");
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line(sb, "},");
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line(sb, "yaxis: {");
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line(sb, " showLabels: false,");
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line(sb, " showMinorLabels: false,");
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line(sb, " tickDecimals: 0,");
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line(sb, " autoscale: true,");
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line(sb, " autoscaleMargin: 1,");
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line(sb, " margin: 10");
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line(sb, "},");
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line(sb, "grid: {");
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line(sb, " verticalLines: false,");
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line(sb, " minorVerticalLines: null,");
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line(sb, " horizontalLines: true,");
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line(sb, " minorHorizontalLines: null,");
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line(sb, " outlineWidth: 1,");
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line(sb, " outline: 's'");
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line(sb, "},");
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line(sb, "legend: {");
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line(sb, " show: false");
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line(sb, "}");
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line(sb, "});");
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}
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@Override
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public void addValue(Date date, int value) {
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xAxisIsDate = true;
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super.addValue(date, value);
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}
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}
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