JDK-8213535 : Windows HiDPI html lightweight tooltips are truncated
- Type: Bug
- Component: client-libs
- Sub-Component: javax.swing
- Affected Version: 10,11,12,13,14,15
- Priority: P3
- Status: Resolved
- Resolution: Fixed
- OS: windows_10
- CPU: x86_64
- Submitted: 2018-10-30
- Updated: 2020-11-26
- Resolved: 2020-06-25
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To download the current JDK release, click here.
| JDK 11 | JDK 13 | JDK 16 |
|---|---|---|
| 11.0.10-oracleFixed | 13.0.6Fixed | 16 b05Fixed  |
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Description
ADDITIONAL SYSTEM INFORMATION :
Windows 10 with HiDPI display with everything scaled at 200%
A DESCRIPTION OF THE PROBLEM :
HTML tooltips aren't big enough to contain their contents on Windows HiDPI displays, so the final word on a line wraps to the next line. If it is a multi-line tooltip, then the final line is missing entirely.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the attached program. Mouse over the button and wait for the tooltip to appear
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
The tooltip says "Some tooltip text"
ACTUAL -
The tooltip says "Some tooltip"
---------- BEGIN SOURCE ----------
package com.company;
import javax.swing.*;
import java.awt.*;
public class TruncatedTooltip {
public static void main(String[] args) {
// Demonstrate that the tooltip contents are truncated when the tooltip is lightweight (entirely within the window bounds) on Windows HiDPI displays
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
JButton button = new JButton("toggle height");
button.setToolTipText("<html>Some tooltip text<html>");
JFrame frame = new JFrame();
frame.getContentPane().setLayout(new FlowLayout());
frame.getContentPane().add(button);
frame.setSize(400,200);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setVisible(true);
button.addActionListener(e -> frame.setSize(300,frame.getHeight()<200?200:40));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}
---------- END SOURCE ----------
CUSTOMER SUBMITTED WORKAROUND :
Click the button which decreases the size of the window enough such that the tooltip needs to extend outside of the window bounds. It displays correctly as a heavy weight tooltip.
This bug does not happen under Java 9.
This bug does not happen if the Windows look and feel is not set.
FREQUENCY : always
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