Verify Dragging and Dropping of Elements in Project Explorer and Outline Section for Linux/MacOS

[ShahzaibIbrahim]

Description
(Follow-up: see eclipse-platform/eclipse.platform.swt#2174 (comment))

This is just a test ticket to see if Dragging Element looks good in Linux/MacOS after the DPI change.

Reproduction
Try the following on Mac and Linux and create tickets/PRs if necessary:

• Start the workbench in a monitor with a given zoom
• Switch to another monitor with another zoom
• Drag an element (class/package) in the package explorer

Expected Behavior
The dragged element should look fine according to the zoom

Actual behavior
The dragged element is sized according to the zoom level of the monitor in which the workbench started.

Additional information
If the error is reproducible, start by using the same fix that we used for Windows: eclipse-platform/eclipse.platform.swt#2174

[fedejeanne]

I made some changes to the description.

I also think the steps to reproduce can be simplified. The original issue (on Windows) was also reproducible by doing this:

• Start the workbench in a monitor with a given zoom
• Switch to another monitor with another zoom
• Drag an element (class/package) in the package explorer

I don't remember the primary monitor playing a role here and if it does then the issue should be even simpler: move to the secondary monitor (which should use a zoom level different from the one in the primary monitor) and drag something.

WDYT @ShahzaibIbrahim ?

[ShahzaibIbrahim]

@fedejeanne Yes, you are right. Primary monitor doesn't play a role here instead where the application was started first.

[fedejeanne]

I tested and it's not reproducible on Mac/Linux. In both OSes the size of the dragged element suits the screen resolution and zoom of the monitor the workbench is in.