[jdk18] RFR: 8279227: Access Bridge: Wrong frame position and hit test result on HiDPI display [v3]

[Anton Tarasov]

On Sat, 25 Dec 2021 17:38:49 GMT, Aleksandr Veselov <duke at openjdk.java.net> wrote:

>> Perform scaling while converting sizes and coordinates to provide correct positions of accessible elements on HiDPI screen and make hit-test work properly. It uses FontRenderContext to receive display scale without API changes.
>
> Aleksandr Veselov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Pick graphics configuration from env instead of using FRC

src/jdk.accessibility/windows/classes/com/sun/java/accessibility/internal/AccessBridge.java line 7363:

> 7361:          * @param  current the default configuration which is checked in the first
> 7362:          *         place
> 7363:          * @param  x the x coordinate of the given point

Please specify in which space the coordinates are expected.

src/jdk.accessibility/windows/classes/com/sun/java/accessibility/internal/AccessBridge.java line 7369:

> 7367:         public static GraphicsConfiguration getGraphicsConfigurationAtPoint(
> 7368:                 GraphicsConfiguration current, double x, double y) {
> 7369:             if (current.getBounds().contains(x, y)) {

Here you do not translate the bounds to device space. Actually, I'd remove this check at all, as below you duplicate it. Also, when you call the method you pass the default GC, so it seems it does not bring much profit...

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PR: https://git.openjdk.java.net/jdk18/pull/72