Example usage for org.jfree.chart ChartPanel setMinimumDrawHeight

Introduction

In this page you can find the example usage for org.jfree.chart ChartPanel setMinimumDrawHeight.

Prototype

public void setMinimumDrawHeight(int height)

Source Link

Document

Sets the minimum drawing height for the chart on this panel.

Usage

From source file:uk.ac.lkl.cram.ui.ModuleFrame.java

private JXTaskPane createLearningExperienceChartPane() {
    JXTaskPane experienceChartPane = new JXTaskPane();
    experienceChartPane.setScrollOnExpand(true);
    experienceChartPane.setTitle("Learning Experiences");
    final LearningExperienceChartMaker maker = new LearningExperienceChartMaker(module);
    final ChartPanel chartPanel = maker.getChartPanel();
    //Add a mouselistener, listening for a double click on a bar of the stacked bar
    chartPanel.addChartMouseListener(new ChartMouseListener() {
        @Override/*w w  w  . jav  a  2s  .c  o m*/
        public void chartMouseClicked(ChartMouseEvent cme) {
            //Get the mouse event
            MouseEvent trigger = cme.getTrigger();
            //Test if the mouse event is a left-button
            if (trigger.getButton() == MouseEvent.BUTTON1 && trigger.getClickCount() == 2) {
                //Get the selected segment of the pie
                CategoryItemEntity bar = (CategoryItemEntity) cme.getEntity();
                //Get the row key that corresponds to that segment--this is a learning experience
                String key = bar.getRowKey().toString();
                //Get the set of tlalineitems whose activity contains that learning type
                Set<TLALineItem> relevantTLAs = maker.getLearningExperienceMap().get(key);
                //Create a pop up dialog containing that set of tlalineitems
                LearningExperiencePopupDialog popup = new LearningExperiencePopupDialog(
                        (Frame) SwingUtilities.getWindowAncestor(chartPanel), true, relevantTLAs);
                //Set the title of the popup to indicate which learning type was selected
                popup.setTitle("Activities with \'" + key + "\'");
                //Centre the popup at the location of the mouse click
                Point location = trigger.getLocationOnScreen();
                int w = popup.getWidth();
                int h = popup.getHeight();
                popup.setLocation(location.x - w / 2, location.y - h / 2);
                popup.setVisible(true);
                int returnStatus = popup.getReturnStatus();
                if (returnStatus == LearningTypePopupDialog.RET_OK) {
                    modifyTLALineItem(popup.getSelectedTLALineItem(), 0);
                }
            }
        }

        @Override
        public void chartMouseMoved(ChartMouseEvent cme) {
            //Set the cursor shape according to the location of the cursor
            if (cme.getEntity() instanceof CategoryItemEntity) {
                chartPanel.setCursor(HAND);
            } else {
                chartPanel.setCursor(Cursor.getDefaultCursor());
            }
        }
    });
    chartPanel.setPreferredSize(new Dimension(125, 75));
    chartPanel.setMinimumDrawHeight(75);
    experienceChartPane.add(chartPanel);
    return experienceChartPane;
}