Bug 579410

Summary:

Blur UI during DND operation on Table widget

Product:

[Eclipse Project] Platform

Reporter:

Bhavana Bhongale <bhavanagkwd>

Component:

SWT

Assignee:

Platform-SWT-Inbox <platform-swt-inbox>

Status:

NEW ---

QA Contact:

Severity:

critical

Priority:

CC:

bhavanagkwd

Version:

4.24

Target Milestone:

---

Hardware:

OS:

Windows 10

Whiteboard:

Attachments:

Description	Flags
Blur and Bold Text during drag operation	none

Description Bhavana Bhongale

2022-03-25 01:14:27 EDT

Created attachment 288289 [details]
Blur and Bold Text during drag operation

We have an application based on Eclipse, which contains a Table and Tree viewer. The application is dpiUnaware and we have enabled gdiScaling for the application, to reduce the blurry fonts.
More about gdiScaling - https://blogs.windows.com/windowsdeveloper/2017/05/19/improving-high-dpi-experience-gdi-based-desktop-apps/

With gdiScaling enabled, the table rows on which mouse is dragged turn bold during the drag operation and restore after the drop is completed.

The issue can be reproduced with the DND SWT sample after enabling gdiScaling for Eclipse. This can be done from the Eclipse application Properties dialog -> Compatibility -> Click on "Change High DPI settings" -> Check the "Override high DPI scaling behavior" checkbox. -> Scaling performed by: Select System(Enhanced) from the drop down. Using this setting now the scaling will be performed by Windows OS.

Comment 1 Bhavana Bhongale

2022-03-25 01:22:16 EDT

Issue can be reproduced using the SWT Example Launcher -> select Drag and drop from standalone application. Before running the Example you need to launch Eclipse using the (System Enhanced) Compatibility setting.