CODEWITHSUNDEEP
javaswingresizejscrollpanejeditorpane
Qix - MONICA WAS MISTREATED
Qix - MONICA WAS MISTREATED

Reputation: 15103

Force JEditorPane within JScrollPane to shrink + re-wrap

Having an issue with a JScrollPane expanding its child JEditorPane just fine but forcing horizontal scroll bars when resizing it down again (instead of forcing the JEditorPane to recalculate wrapping).

The basic flow of code is as follows:

JFrame f = new JFrame();
JEditorPane jep = new JEditorPane();
JScrollPane jsp = new JScrollPane(jep);
f.add(jsp);

Upvotes: 1

Views: 610

Answers (1)

Qix - MONICA WAS MISTREATED
Qix - MONICA WAS MISTREATED

Reputation: 15103

It's a hack, but the best way I could find (without using ugly ScrollPaneManagers) was to implement a ComponentListener on the JScrollPane to resize the child component whenever it was resized.

jsp.addComponentListener(new ComponentListener() {
    @Override
    public void componentShown(ComponentEvent e) {}

    @Override
    public void componentResized(ComponentEvent e) {
        Dimension jspSize = ((JScrollPane)e.getComponent()).getViewport().getSize();
        jep.setBounds(0, 0, jspSize.width, jspSize.height);
    }

    @Override
    public void componentMoved(ComponentEvent e) {}

    @Override
    public void componentHidden(ComponentEvent e) {}
});

Upvotes: 1

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