//Load the photograph into an image icon.
ImageIcon david = new ImageIcon("images/youngdad.jpeg");
david.setDescription("Photograph of David McNabb in his youth.");
//Create the row and column headers
columnView = new Rule(Rule.HORIZONTAL, true);
columnView.setPreferredWidth(david.getIconWidth());
columnView.getAccessibleContext().setAccessibleName("Column Header");
columnView.getAccessibleContext().
setAccessibleDescription("Displays horizontal ruler for " +
"measuring scroll pane client.");
rowView = new Rule(Rule.VERTICAL, true);
rowView.setPreferredHeight(david.getIconHeight());
rowView.getAccessibleContext().setAccessibleName("Row Header");
rowView.getAccessibleContext().
setAccessibleDescription("Displays vertical ruler for " +
"measuring scroll pane client.");
//Create the corners
JPanel buttonCorner = new JPanel();
isMetric = new JToggleButton("cm", true);
isMetric.setFont(new Font("SansSerif", Font.PLAIN, 11));
isMetric.setMargin(new Insets(2,2,2,2));
isMetric.addItemListener(new UnitsListener());
isMetric.setToolTipText("Toggles rulers' unit of measure " +
"between inches and centimeters.");
buttonCorner.add(isMetric); //Use the default FlowLayout
buttonCorner.getAccessibleContext().
setAccessibleName("Upper Left Corner");
String desc = "Fills the corner of a scroll pane " +
"with color for aesthetic reasons.";
Corner lowerLeft = new Corner();
lowerLeft.getAccessibleContext().
setAccessibleName("Lower Left Corner");
lowerLeft.getAccessibleContext().setAccessibleDescription(desc);
Corner upperRight = new Corner();
upperRight.getAccessibleContext().
setAccessibleName("Upper Right Corner");
upperRight.getAccessibleContext().setAccessibleDescription(desc);
//Set up the scroll pane
picture = new ScrollablePicture(david,
columnView.getIncrement());
picture.setToolTipText(david.getDescription());
picture.getAccessibleContext().setAccessibleName(
"Scroll pane client");
JScrollPane pictureScrollPane = new JScrollPane(picture);
pictureScrollPane.setPreferredSize(new Dimension(300, 250));
pictureScrollPane.setViewportBorder(
BorderFactory.createLineBorder(Color.black));
pictureScrollPane.setColumnHeaderView(columnView);
pictureScrollPane.setRowHeaderView(rowView);
pictureScrollPane.setCorner(JScrollPane.UPPER_LEFT_CORNER,
buttonCorner);
pictureScrollPane.setCorner(JScrollPane.LOWER_LEFT_CORNER,
lowerLeft);
pictureScrollPane.setCorner(JScrollPane.UPPER_RIGHT_CORNER,
upperRight);
//Put it in this panel
setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
add(pictureScrollPane);
setBorder(BorderFactory.createEmptyBorder(20,20,20,20));
