/**
* Creates a new Outline object.
*
* @param djvuBean the DjVuBean to navigate.
* @throws ArrayIndexOutOfBoundsException if the document has less than 2 pages.
*/
public Outline(final DjVuBean djvuBean) {
this.djvuBean = djvuBean;
if (djvuBean.getDocument().size() < 2) {
throw new ArrayIndexOutOfBoundsException("Can not navigate documents with only one page.");
}
final MouseListener mouseListener =
new MouseAdapter() {
public void mouseClicked(final MouseEvent e) {
try {
clickLocation(e.getX(), e.getY());
} catch (final Throwable exp) {
exp.printStackTrace(DjVuOptions.err);
System.gc();
}
}
};
addMouseListener(mouseListener);
final Document document = djvuBean.getDocument();
final Bookmark bookmark = (Bookmark) document.getBookmark();
bookmark.setDjVmDir(document.getDjVmDir());
setFirstBookmark(bookmark);
final Properties properties = djvuBean.properties;
properties.put("addOn.NavPane", "Outline," + properties.getProperty("addOn.NavPane", "None"));
djvuBean.addPropertyChangeListener(this);
}
/**
* Called when the user clicks the mouse on an outline item. If the check box is checked, the
* checked value will be toggled. If the name is clicked, the bookmark page will be displayed.
*
* @param x position along the X axis clicked.
* @param y position along the Y axis clicked.
*/
public void clickLocation(final int x, final int y) {
final int item = getRow(y);
final Bookmark bookmark = getBookmark(item);
if (bookmark != null) {
Rectangle bounds = getCheckboxBounds(item, bookmark, getDepthMap().get(bookmark));
if ((x >= bounds.x)
&& (y > bounds.y)
&& (x < (bounds.x + bounds.width))
&& (y < (bounds.y + bounds.height))) {
setCheckedItem(item, !isCheckedItem(item));
} else {
bounds = getTextBounds(item, bookmark, getDepthMap().get(bookmark));
if ((x >= bounds.x)
&& (y > bounds.y)
&& (x < (bounds.x + bounds.width))
&& (y < (bounds.y + bounds.height))) {
final int pageno = bookmark.getPageno() + 1;
if (pageno > 0) {
djvuBean.setPage(pageno);
}
}
}
}
}
/**
* Called to change the visibility of the outline.
*
* @param value true if visible.
*/
public void setVisible(final boolean value) {
if (value != isVisible()) {
super.setVisible(value);
Container parent = getParent();
if ((parent != null) && (parent.getComponentCount() == 1)) {
parent.setVisible(value);
}
invalidate();
try {
for (; parent != null; parent = parent.getParent()) {
try {
parent.getClass().getMethod("resetToPreferredSizes", null).invoke(parent, null);
visibleArgs[0] = new Integer(value ? 10 : 0);
parent.getClass().getMethod("setDividerSize", visibleParms).invoke(parent, visibleArgs);
break;
} catch (final Throwable ignored) {
}
}
} catch (final Throwable ignored) {
}
djvuBean.recursiveRevalidate();
}
}
/**
* Called to paint the outline.
*
* @param g graphics object to paint.
*/
public void paint(final Graphics g) {
final FontMetrics fontMetrics = getFontMetrics(getFont());
setFontWidth(fontMetrics.stringWidth("_"));
setFontHeight(fontMetrics.getHeight());
if (firstTime) {
firstTime = false;
setVisible("Outline".equalsIgnoreCase(djvuBean.properties.getProperty("navpane")));
}
if (!isVisible()) {
getParent().setVisible(false);
invalidate();
djvuBean.recursiveRevalidate();
} else {
synchronized (activeVector) {
paintItem(0, g, getBookmark(0));
paintCheckbox(0, g, getBookmark(0));
}
}
}
