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  1. JDK
  2. JDK-8039345

Strange behaviour of per-pixel translucency on linux

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    Details

    • Subcomponent:
      2d
    • Introduced In Build:
      b119
    • Introduced In Version:
      8
    • Resolved In Build:
      b56
    • CPU:
      generic
    • OS:
      linux

      Backports

        Description

        Window with transparent background color.

        Components are leaving trails if main window has background color with transparency. Still, window doesn't become transparent even if transparency.
        Reproducible: Always.

        Reproducible in jdk 8 only (8b118 works normally, starts failing since 8b119 )

        Steps to reproduce (as in attached java file):
        1. Create window (any kind: Frame, JFrame, or just Window) and place some components on it. Set color with alpha as window's background color.
        2. Resize window in any way

        Expected:
        1. Window with semi-transparent background resized normally

        Actual:
        1. Window is not transparent at all.
        2. Components have trails (see attached screenshot).






          Attachments

          1. Main.java
            2 kB
            Andrey Rusakov
          2. снимок1.png
            3 kB
            Andrey Rusakov

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                Assignee:
                psadhukhan Prasanta Sadhukhan
                Reporter:
                arusakov Andrey Rusakov (Inactive)
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                  Dates

                  Created:
                  Updated:
                  Resolved: