org.jfree.chart.fx.ChartViewer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jfreechart Show documentation
Show all versions of jfreechart Show documentation
JFreeChart is a class library, written in Java, for generating charts.
Utilising the Java2D API, it supports a wide range of chart types including
bar charts, pie charts, line charts, XY-plots, time series plots, Sankey charts
and more.
/* ===========================================================
* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2014, by Object Refinery Limited and Contributors.
*
* Project Info: http://www.jfree.org/jfreechart/index.html
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
* Other names may be trademarks of their respective owners.]
*
* ----------------
* ChartViewer.java
* ----------------
* (C) Copyright 2014, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* Changes:
* --------
* 27-Jun-2014 : Version 1 (DG);
*
*/
package org.jfree.chart.fx;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javafx.event.ActionEvent;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.Control;
import javafx.scene.control.Menu;
import javafx.scene.control.MenuItem;
import javafx.scene.control.Skinnable;
import javafx.stage.FileChooser;
import javafx.stage.WindowEvent;
import org.jfree.chart.ChartMouseEvent;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.fx.interaction.ChartMouseEventFX;
import org.jfree.chart.fx.interaction.ChartMouseListenerFX;
import org.jfree.chart.util.ExportUtils;
import org.jfree.chart.util.ParamChecks;
/**
* A control for displaying a {@link JFreeChart} in JavaFX (embeds a
* {@link ChartCanvas}, adds drag zooming and provides a popup menu for export
* to PNG/JPG/SVG and PDF formats). Many behaviours(tooltips, zooming etc) are
* provided directly by the canvas.
*
* THE API FOR THIS CLASS IS SUBJECT TO CHANGE IN FUTURE RELEASES. This is
* so that we can incorporate feedback on the (new) JavaFX support in
* JFreeChart.
*
* @since 1.0.18
*/
public class ChartViewer extends Control implements Skinnable,
ChartMouseListenerFX {
/** The chart to display. */
private JFreeChart chart;
/** The context menu that will be attached to the canvas. */
private ContextMenu contextMenu;
/** Does the viewer show tooltips from the chart? */
private boolean tooltipEnabled;
/** Storage for registered chart mouse listeners. */
private transient List chartMouseListeners;
/**
* Creates a new viewer to display the supplied chart in JavaFX.
*
* @param chart the chart ({@code null} not permitted).
*/
public ChartViewer(JFreeChart chart) {
this(chart, true);
}
/**
* Creates a new viewer instance.
*
* @param chart the chart ({@code null} not permitted).
* @param contextMenuEnabled enable the context menu?
*/
public ChartViewer(JFreeChart chart, boolean contextMenuEnabled) {
ParamChecks.nullNotPermitted(chart, "chart");
this.chart = chart;
getStyleClass().add("chart-control");
this.contextMenu = createContextMenu();
this.contextMenu.setOnShowing((WindowEvent event) -> {
ChartViewer.this.setTooltipEnabled(false);
});
this.contextMenu.setOnHiding((WindowEvent event) -> {
ChartViewer.this.setTooltipEnabled(true);
});
setContextMenu(this.contextMenu);
this.tooltipEnabled = true;
this.chartMouseListeners = new ArrayList();
}
@Override
protected String getUserAgentStylesheet() {
return ChartViewer.class.getResource("chart-viewer.css")
.toExternalForm();
}
/**
* Returns the chart that is being displayed by this node.
*
* @return The chart (never {@code null}).
*/
public JFreeChart getChart() {
return this.chart;
}
/**
* Sets the chart to be displayed by this node.
*
* @param chart the chart ({@code null} not permitted).
*/
public void setChart(JFreeChart chart) {
ParamChecks.nullNotPermitted(chart, "chart");
this.chart = chart;
ChartViewerSkin skin = (ChartViewerSkin) getSkin();
skin.setChart(chart);
}
/**
* Returns the flag that controls whether or not tooltips are displayed
* for the chart.
*
* @return A boolean.
*/
public boolean isTooltipEnabled() {
return this.tooltipEnabled;
}
/**
* Sets the flag that controls whether or not the chart tooltips are shown
* by this viewer.
*
* @param enabled the new flag value.
*/
public void setTooltipEnabled(boolean enabled) {
this.tooltipEnabled = enabled;
ChartViewerSkin skin = (ChartViewerSkin) getSkin();
if (skin != null) {
skin.setTooltipEnabled(enabled);
}
}
/**
* Hides the zoom rectangle. The work is delegated to the control's
* current skin.
*/
public void hideZoomRectangle() {
ChartViewerSkin skin = (ChartViewerSkin) getSkin();
skin.setZoomRectangleVisible(false);
}
/**
* Sets the size and location of the zoom rectangle and makes it visible
* if it wasn't already visible. The work is delegated to the control's
* current skin.
*
* @param x the x-location.
* @param y the y-location.
* @param w the width.
* @param h the height.
*/
public void showZoomRectangle(double x, double y, double w, double h) {
ChartViewerSkin skin = (ChartViewerSkin) getSkin();
skin.showZoomRectangle(x, y, w, h);
}
/**
* Registers a listener to receive {@link ChartMouseEvent} notifications
* from this viewer.
*
* @param listener the listener ({@code null} not permitted).
*/
public void addChartMouseListener(ChartMouseListenerFX listener) {
ParamChecks.nullNotPermitted(listener, "listener");
this.chartMouseListeners.add(listener);
}
/**
* Removes a listener from the list of objects listening for chart mouse
* events.
*
* @param listener the listener.
*/
public void removeChartMouseListener(ChartMouseListenerFX listener) {
ParamChecks.nullNotPermitted(listener, "listener");
this.chartMouseListeners.remove(listener);
}
/**
* Creates the context menu.
*
* @return The context menu.
*/
private ContextMenu createContextMenu() {
final ContextMenu menu = new ContextMenu();
Menu export = new Menu("Export As");
MenuItem pngItem = new MenuItem("PNG...");
pngItem.setOnAction((ActionEvent e) -> { handleExportToPNG(); });
export.getItems().add(pngItem);
MenuItem jpegItem = new MenuItem("JPEG...");
jpegItem.setOnAction((ActionEvent e) -> { handleExportToJPEG(); });
export.getItems().add(jpegItem);
if (ExportUtils.isOrsonPDFAvailable()) {
MenuItem pdfItem = new MenuItem("PDF...");
pdfItem.setOnAction((ActionEvent e) -> {
handleExportToPDF();
});
export.getItems().add(pdfItem);
}
if (ExportUtils.isJFreeSVGAvailable()) {
MenuItem svgItem = new MenuItem("SVG...");
svgItem.setOnAction((ActionEvent e) -> {
handleExportToSVG();
});
export.getItems().add(svgItem);
}
menu.getItems().add(export);
return menu;
}
/**
* A handler for the export to PDF option in the context menu.
*/
private void handleExportToPDF() {
FileChooser fileChooser = new FileChooser();
fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter(
"Portable Document Format (PDF)", "pdf"));
fileChooser.setTitle("Export to PDF");
File file = fileChooser.showSaveDialog(this.getScene().getWindow());
if (file != null) {
ExportUtils.writeAsPDF(this.chart, (int) getWidth(),
(int) getHeight(), file);
}
}
/**
* A handler for the export to SVG option in the context menu.
*/
private void handleExportToSVG() {
FileChooser fileChooser = new FileChooser();
fileChooser.setTitle("Export to SVG");
fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter(
"Scalable Vector Graphics (SVG)", "svg"));
File file = fileChooser.showSaveDialog(this.getScene().getWindow());
if (file != null) {
ExportUtils.writeAsSVG(this.chart, (int) getWidth(),
(int) getHeight(), file);
}
}
/**
* A handler for the export to PNG option in the context menu.
*/
private void handleExportToPNG() {
FileChooser fileChooser = new FileChooser();
fileChooser.setTitle("Export to PNG");
fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter(
"Portable Network Graphics (PNG)", "png"));
File file = fileChooser.showSaveDialog(this.getScene().getWindow());
if (file != null) {
try {
ExportUtils.writeAsPNG(this.chart, (int) getWidth(),
(int) getHeight(), file);
} catch (IOException ex) {
// FIXME: show a dialog with the error
}
}
}
/**
* A handler for the export to JPEG option in the context menu.
*/
private void handleExportToJPEG() {
FileChooser fileChooser = new FileChooser();
fileChooser.setTitle("Export to JPEG");
fileChooser.setSelectedExtensionFilter(new FileChooser.ExtensionFilter(
"JPEG", "jpg"));
File file = fileChooser.showSaveDialog(this.getScene().getWindow());
if (file != null) {
try {
ExportUtils.writeAsJPEG(this.chart, (int) getWidth(),
(int) getHeight(), file);
} catch (IOException ex) {
// FIXME: show a dialog with the error
}
}
}
@Override
public void chartMouseClicked(ChartMouseEventFX event) {
// relay the event from the canvas to our registered listeners
for (ChartMouseListenerFX listener: this.chartMouseListeners) {
listener.chartMouseClicked(event);
}
}
@Override
public void chartMouseMoved(ChartMouseEventFX event) {
// relay the event from the canvas to our registered listeners
for (ChartMouseListenerFX listener: this.chartMouseListeners) {
listener.chartMouseMoved(event);
}
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy