I am using pdf.js to render pdf document. How to detect when a mouse is over an image?

Question

Hi,
i want to change the cursor pro grammatically whenever we move the pointer over an image on a pdf document rendered on the browser. I am using pdf.js to render the pdf document.
I would like to know is there any api exists in pdf.js this will take the x and y coordinates and return whether any image was drawn on the specified x and y coordinates?
Thanks
Suresh K

Answer 1

Add a mouse motion listener to the tree, and check the node at the mouse location.
Then change the icon of the tree accordingly:
tree.addMouseMotionListener(new MouseMotionAdapter() {
    public void mouseMoved(MouseEvent e) {
        JTree tree = (JTree) e.getComponent();
        TreePath path = tree.getClosestPathForLocation(e.getX(), e.getY());
        Rectangle bounds = tree.getPathBounds(path);
        if (!bounds.contains(e.getPoint()))
            System.out.println("No tree node under mouse");
        else {
            TreeNode node = (TreeNode) path.getLastPathComponent();                   
            System.out.println("Tree node under mouse: "+node);
});