/**
* DataCleaner (community edition)
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.datacleaner.util;
import java.awt.BasicStroke;
import java.awt.Dimension;
import java.awt.Stroke;
import org.datacleaner.widgets.result.DCDrawingSupplier;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAnchor;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PieLabelLinkStyle;
import org.jfree.chart.plot.PiePlot;
import org.jfree.chart.plot.Plot;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.StandardBarPainter;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.title.LegendTitle;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.title.Title;
import org.jfree.ui.RectangleInsets;
import org.jfree.util.UnitType;
/**
* Contains features related to layout and styling of JFreeChart based charts.
*/
public final class ChartUtils {
/**
* The threshold value advised to use when considering if there are too many
* categories/bars/slices for a chart to render or not.
*/
public static final int CATEGORY_COUNT_DISPLAY_THRESHOLD =
SystemProperties.getInt("datacleaner.chart.categories.threshold", 1000);
public static final int WIDTH_WIDE = 900;
public static final int WIDTH_NORMAL = 600;
public static final int HEIGHT_WIDE = 400;
public static final int HEIGHT_NORMAL = 600;
private static final Stroke STROKE_NORMAL = new BasicStroke(1.2f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
private static final Stroke STROKE_WIDE = new BasicStroke(2.2f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
private ChartUtils() {
// prevent instantiation
}
public static ChartPanel createPanel(final JFreeChart chart, final boolean wide) {
if (wide) {
return createPanel(chart, WIDTH_WIDE, HEIGHT_WIDE);
} else {
return createPanel(chart, WIDTH_NORMAL, HEIGHT_NORMAL);
}
}
public static ChartPanel createPanel(final JFreeChart chart, final int width, final int height) {
final ChartPanel panel = new ChartPanel(chart);
panel.setPreferredSize(new Dimension(width, height));
return panel;
}
public static void applyStyles(final JFreeChart chart) {
final TextTitle title = chart.getTitle();
if (title != null) {
title.setFont(WidgetUtils.FONT_HEADER1);
title.setBackgroundPaint(WidgetUtils.BG_COLOR_BRIGHTEST);
}
for (int i = 0; i < chart.getSubtitleCount(); i++) {
final Title subtitle = chart.getSubtitle(i);
if (subtitle instanceof TextTitle) {
((TextTitle) subtitle).setFont(WidgetUtils.FONT_NORMAL);
}
}
final LegendTitle legend = chart.getLegend();
if (legend != null) {
legend.setItemFont(WidgetUtils.FONT_SMALL);
}
// transparent background
chart.setBackgroundPaint(WidgetUtils.BG_COLOR_BRIGHTEST);
chart.setBorderVisible(false);
final Plot plot = chart.getPlot();
plot.setInsets(new RectangleInsets(UnitType.ABSOLUTE, 0d, 0d, 0d, 0d));
plot.setBackgroundPaint(WidgetUtils.BG_COLOR_BRIGHTEST);
plot.setOutlinePaint(WidgetUtils.BG_COLOR_BRIGHTEST);
plot.setOutlineVisible(true);
if (plot instanceof PiePlot) {
// tweaks for pie charts
final PiePlot piePlot = (PiePlot) plot;
piePlot.setBaseSectionOutlinePaint(WidgetUtils.BG_COLOR_DARK);
piePlot.setBaseSectionOutlineStroke(STROKE_NORMAL);
piePlot.setLabelFont(WidgetUtils.FONT_SMALL);
piePlot.setLabelBackgroundPaint(WidgetUtils.BG_COLOR_BRIGHT);
piePlot.setLabelOutlineStroke(STROKE_NORMAL);
piePlot.setLabelPaint(WidgetUtils.BG_COLOR_DARK);
piePlot.setSectionOutlinesVisible(false);
piePlot.setLabelLinkStyle(PieLabelLinkStyle.QUAD_CURVE);
piePlot.setDrawingSupplier(new DCDrawingSupplier());
} else if (plot instanceof CategoryPlot) {
// tweaks for bar charts
final CategoryPlot categoryPlot = (CategoryPlot) plot;
final int columnCount = categoryPlot.getDataset().getColumnCount();
if (columnCount > 1) {
categoryPlot.setDomainGridlinesVisible(true);
} else {
categoryPlot.setDomainGridlinesVisible(false);
}
categoryPlot.setDomainGridlinePaint(WidgetUtils.BG_COLOR_DARK);
categoryPlot.setDomainGridlinePosition(CategoryAnchor.END);
categoryPlot.getDomainAxis().setLabelFont(WidgetUtils.FONT_SMALL);
categoryPlot.getDomainAxis().setTickLabelFont(WidgetUtils.FONT_SMALL);
categoryPlot.getRangeAxis().setLabelFont(WidgetUtils.FONT_SMALL);
categoryPlot.getRangeAxis().setTickLabelFont(WidgetUtils.FONT_SMALL);
categoryPlot.setDrawingSupplier(new DCDrawingSupplier());
final CategoryItemRenderer renderer = categoryPlot.getRenderer();
renderer.setBaseOutlinePaint(WidgetUtils.BG_COLOR_DARK);
renderer.setBaseOutlineStroke(STROKE_WIDE);
if (renderer instanceof BarRenderer) {
final BarRenderer barRenderer = (BarRenderer) renderer;
barRenderer.setShadowPaint(WidgetUtils.BG_COLOR_BRIGHT);
barRenderer.setBarPainter(new StandardBarPainter());
}
} else if (plot instanceof XYPlot) {
// tweaks for line charts
final XYPlot xyPlot = (XYPlot) plot;
xyPlot.setDrawingSupplier(new DCDrawingSupplier());
xyPlot.getDomainAxis().setLabelFont(WidgetUtils.FONT_SMALL);
xyPlot.getDomainAxis().setTickLabelFont(WidgetUtils.FONT_SMALL);
xyPlot.getRangeAxis().setLabelFont(WidgetUtils.FONT_SMALL);
xyPlot.getRangeAxis().setTickLabelFont(WidgetUtils.FONT_SMALL);
final XYItemRenderer renderer = xyPlot.getRenderer();
final int seriesCount = xyPlot.getSeriesCount();
for (int i = 0; i < seriesCount; i++) {
renderer.setSeriesStroke(i, STROKE_WIDE);
}
}
}
}