-backgroundColor returns wrong color in HiDPI retina mode

Originator:thakis
Number:rdar://11685486 Date Originated:june 17 2012
Status:Open Resolved:
Product:Mac OS X Product Version:10.7.4
Classification:UI / Usability Reproducible:Always
 
17-Jun-2012 12:05 PM Nico Weber:
Summary:

It used to be possible to have a view that draws its background with 

    [[[self window] backgroundColor] set];
    NSRectFill(dirtyRect);

and then the view would be "invisible" on a textured window. This worked in HiDPI mode up to OS X 10.7.3. In 10.7.4, the object returned from -backgroundColor isn't really related to the actual window background color, and views drawn that way are very visible. (This is also why the background color of the active tab in Terminal.app looks ugly in HiDPI mode.)

Steps to Reproduce:
1.) Run the attached sample program (pattern/pattern.app).

Expected Results:

It looks like a textured window with no obviously visible view (pattern/pattern-lodpi-10.7.3.png, pattern/pattern-hidpi-10.7.3.png).

Actual Results:

The view is clearly visible (pattern/pattern-hidpi-10.7.4.png)

Regression:

Yes, this used to work in 10.7.3.

Notes:

This breaks tab drawing in Terminal.app and in Google Chrome (http://crbug.com/133229)

17-Jun-2012 12:05 PM Nico Weber:
'pattern.zip' was successfully uploaded

Comments

Duplicate of rdar 11056851

By thakis at June 21, 2012, 10:28 p.m. (reply...)

The attachment I attached to the rdar is publicly available here: https://code.google.com/p/chromium/issues/detail?id=133229#c3

By thakis at June 17, 2012, 7:08 p.m. (reply...)

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