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JIDE Common Layer (Professional Swing Components)

There is a newer version: 3.6.18

/*
 * @(#)StyledToolTip.java 1/12/2012
 *
 * Copyright 2002 - 2012 JIDE Software Inc. All rights reserved.
 */

package com.jidesoft.swing;

import java.awt.*;

import javax.swing.*;
import javax.swing.border.Border;

/**
 * A Tooltip that could receives StyledLabel annotations.
 *
 * @since 3.3.4
 */
public class StyledToolTip extends JToolTip {
    private final StyledLabel label = new StyledLabel();

    public StyledToolTip() {
        label.setHorizontalTextPosition(JLabel.CENTER);
        label.setVerticalTextPosition(JLabel.CENTER);

        setLayout(new BorderLayout());
        add(label);
    }

    @Override
    public void setBorder(Border border) {
        if (border == null) {
            super.setBorder(null);
        }
        else {
            super.setBorder(BorderFactory.createCompoundBorder(border, BorderFactory.createEmptyBorder(1, 1, 1, 1)));
        }
    }

    @Override
    public Dimension getPreferredSize() {
        if(getTipText() != null) {
            Insets insets = getInsets();
            Dimension size = label.getPreferredSize();
            size.width += insets.left + insets.right;
            size.height += insets.top + insets.bottom;
            return size;
        }
        return super.getPreferredSize();
    }

    @Override
    public void setTipText(String tipText) {
        super.setTipText(tipText != null ? "" : null);

        StyledLabelBuilder.setStyledText(label, tipText != null ? tipText : "");
        revalidate();
    }
}