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  1. JDK
  2. JDK-8150176

[hidpi] wrong resolution variant of multi-res. image is used for TrayIcon

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Details

    • Bug
    • Resolution: Fixed
    • P3
    • 9
    • 9
    • client-libs
    • b140

    Description

      Please compile/run the following code on HiDPI machine (or use sun.java2d.uiScale option):

      import java.awt.*;
      import java.awt.image.*;

      public class TrayIconTest {

          private static BufferedImage generateImage(int w, int h, int scale, Color c) {

              int x = w * scale, y = h * scale;
              BufferedImage img = new BufferedImage(x, y, BufferedImage.TYPE_INT_RGB);
              Graphics g = img.getGraphics();
              g.setColor(c);
              g.fillRect(0, 0, x, y);
              g.setColor(Color.WHITE);
              g.fillRect(x / 3, y / 3, x / 3, y / 3);
              return img;
          }

          private static BaseMultiResolutionImage createIcon(int w, int h) {
              return new BaseMultiResolutionImage(
                      new BufferedImage[]{generateImage(w, h, 1, Color.RED),
                                          generateImage(w, h, 2, Color.GREEN)});
          }
          
          public static void main(String[] args) throws Exception {
              
              if (!SystemTray.isSupported()) {
                  System.err.println("tray is not supported");
                  return;
              }
              
              SystemTray tray = SystemTray.getSystemTray();
              Dimension d = tray.getTrayIconSize();
              System.out.println("icon size: " + d.width + "x" + d.height);

              tray.add(new TrayIcon(createIcon(d.width, d.height)));
          }
      }

      expected: high-resolution ("green") icon will apear in the tray. in fact - the "red" one appears.

      Win 8 + HiDPI, JDK9 b106

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              rchamyal Rajeev Chamyal (Inactive)
              avstepan Alexander Stepanov
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                Created:
                Updated:
                Resolved: