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Bug 97050

Summary:

[Widgets] Icons with semi transparent pixels not shown correct when ALT+TAB

Product:

[Eclipse Project] Platform

Reporter:

Harry Hornreich <harryhorn>

Component:

SWT

Assignee:

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

Status:

CLOSED WONTFIX

QA Contact:

Felipe Heidrich <eclipse.felipe>

Severity:

normal

Priority:

CC:

snorthov

Version:

3.1

Keywords:

triaged

Target Milestone:

---

Hardware:

OS:

Windows XP

Whiteboard:

stalebug

Attachments:

Description	Flags
Icon file that shows the problem. See black lines around icon when ALT+TAB	none
screenshot	none
screenshot 2	none

Description Harry Hornreich

2005-05-27 14:27:18 EDT

I am using 3.1 M7. I added to a shell images using setImages(). The images 
were created from different sized icons with semi-transparent pixels in them. 
The icon on the window itself (top left) displays fine. However, when I 
ALT+TAB between the windows applications I see that the icon image displayed 
to select the active applications shows black instead of the semi-transparent 
pixels in the image. My guess is that SWT is not passing correctly the 
information to the OS in this case. The image itself looks fine on windows 
itself as an .ico file so I do not think this is a graphics issue.

Comment 1 Steve Northover

2005-05-30 13:03:25 EDT

Can you attach the images please?  Thanks.

Comment 2 Harry Hornreich

2005-05-30 19:21:34 EDT

Created attachment 21998 [details]
Icon file that shows the problem. See black lines around icon when ALT+TAB

Comment 3 Felipe Heidrich

2005-06-03 18:31:27 EDT

Created attachment 22376 [details]
screenshot

I ain't sure I'm seeing the problem you described. Please, check the screenshot
I attached. Does it show the problem ?

Comment 4 Felipe Heidrich

2005-06-03 18:32:22 EDT

That is how I loaded the image and set it in the shell:
Image icon = new Image (display, PR97046.class.getResourceAsStream
("sample2.ico"));
shell.setImage(icon);

Comment 5 Steve Northover

2005-06-06 10:09:58 EDT

Felipe, did you try multiple images using Shell.setImages()?  Have you tried 
both with and without the XP manifest?

Comment 6 Felipe Heidrich

2005-06-06 10:45:07 EDT

Created attachment 22422 [details]
screenshot 2

Harry, is this what you are getting ?

Steve, yes, I tested all these scenarios.

Comment 7 Felipe Heidrich

2005-06-06 11:56:19 EDT

Try to open sample2.ico using IE, does IE shows the icon wrong too ?
wrong == thick black border around the ballon.

To reproduce this problem I had to lower the depth of my display from 32bit to 
16bit (didn't test 24).

Comment 8 Felipe Heidrich

2005-06-07 17:46:50 EDT

This fails on IE. The icon depth is more than the depth of display.
You can detect this case in your code using:
ImageData data = new ImageData (PR97050.class.getResourceAsStream
("sample2.ico"));
if (data.depth > display.getIconDepth())  {
	System.out.println("BAD icon " +data.depth + " display only " + 
display.getIconDepth());
}

I just won't close this bug cause I believe this can be fixed on Windows XP, 
but not in time for Eclipse 3.1

Comment 9 Felipe Heidrich

2009-08-19 12:21:03 EDT

Your bug has been moved to triage, visit http://www.eclipse.org/swt/triage.php for more info.

Comment 10 Leo Ufimtsev

2017-08-03 12:33:43 EDT

This is a one-off bulk update. (The last one in the triage migration).

Moving bugs from swt-triaged@eclipse to platform-swt-inbox@eclipse.org and adding "triaged" keyword as per new triage process:
https://wiki.eclipse.org/SWT/Devel/Triage

See Bug 518478 for details.

Tag for notification/mail filters:
@TriageBulkUpdate

Comment 11 Eclipse Genie

2020-08-11 14:06:30 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. As such, we're closing this bug.

If you have further information on the current state of the bug, please add it and reopen this bug. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.