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| | | /*
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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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| | |
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| | | import java.text.MessageFormat;
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| | | import java.util.ArrayList;
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| | | import java.util.Collections;
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| | | import java.util.List;
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| | | import com.gitblit.utils.StringUtils;
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| | |
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| | | /**
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| | | * Builds an interactive pie chart using the Visualization API.
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| | | * |
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| | | * @author James Moger
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| | | * |
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| | | */
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| | | public class GooglePieChart extends GoogleChart {
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| | |
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| | | private static final long serialVersionUID = 1L;
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| | |
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| | | public GooglePieChart(String tagId, String title, String keyName, String valueName) {
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| | | super(tagId, title, keyName, valueName);
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| | | }
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| | |
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| | | @Override
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| | | protected void appendChart(StringBuilder sb) {
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| | | // create dataset
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| | | String dName = "data_" + dataName;
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| | | line(sb, MessageFormat.format("var {0} = new google.visualization.DataTable();", dName));
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| | | line(sb, MessageFormat.format("{0}.addColumn(''string'', ''{1}'');", dName, keyName));
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| | | line(sb, MessageFormat.format("{0}.addColumn(''number'', ''{1}'');", dName, valueName));
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| | | line(sb, MessageFormat.format("{0}.addRows({1,number,0});", dName, values.size()));
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| | |
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| | | Collections.sort(values);
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| | | List<ChartValue> list = new ArrayList<ChartValue>();
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| | | |
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| | | int maxSlices = 10;
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| | | if (values.size() > maxSlices) {
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| | | list.addAll(values.subList(0, maxSlices));
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| | | } else {
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| | | list.addAll(values);
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| | | }
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| | | |
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| | | StringBuilder colors = new StringBuilder("colors:[");
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| | | for (int i = 0; i < list.size(); i++) {
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| | | ChartValue value = list.get(i);
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| | | colors.append('\'');
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| | | colors.append(StringUtils.getColor(value.name));
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| | | colors.append('\'');
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| | | if (i < values.size() - 1) {
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| | | colors.append(',');
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| | | }
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| | | line(sb, MessageFormat.format("{0}.setValue({1,number,0}, 0, ''{2}'');", dName, i,
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| | | value.name));
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| | | line(sb, MessageFormat.format("{0}.setValue({1,number,0}, 1, {2,number,0.0});", dName,
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| | | i, value.value));
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| | | }
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| | | colors.append(']');
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| | | // instantiate chart
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| | | String cName = "chart_" + dataName;
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| | | line(sb, MessageFormat.format(
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| | | "var {0} = new google.visualization.PieChart(document.getElementById(''{1}''));",
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| | | cName, tagId));
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| | | line(sb,
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| | | MessageFormat
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| | | .format("{0}.draw({1}, '{' title: ''{4}'', {5}, legend: '{' position:''{6}'' '}' '}');",
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| | | cName, dName, width, height, title, colors.toString(), showLegend ? "right" : "none"));
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| | | line(sb, "");
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| | | }
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| | | } |
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