Bug 110239

Summary: [New Multicolumn] REGRESSION: RenderMultiColumnSets broken by the RenderRegion -> RenderBlock subclassing
Product: WebKit Reporter: Dave Hyatt <hyatt>
Component: Layout and RenderingAssignee: Dave Hyatt <hyatt>
Status: RESOLVED FIXED    
Severity: Normal CC: eric, esprehn, jchaffraix, ojan.autocc, WebkitBugTracker, webkit.review.bot
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch simon.fraser: review+

Description Dave Hyatt 2013-02-19 11:09:57 PST
RenderMultiColumnSets were not patched correctly when RenderRegions became RenderBlocks. This bug is covering fixing the paint method to be more like RenderRegion's.
Comment 1 Dave Hyatt 2013-02-19 14:35:21 PST
Created attachment 189165 [details]
Patch
Comment 2 Simon Fraser (smfr) 2013-02-19 14:41:45 PST
Comment on attachment 189165 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=189165&action=review

> Source/WebCore/rendering/RenderFlowThread.cpp:254
> +    // layout code that attempts to pixel snap will be incorrect. In general this is a huge problem with
> +    // subpixel layout (that attempts at snapping are just utterly wrong in the presence of any non-integral

Perhaps you could omit this or say it in a more forward-looking way.
Comment 3 Dave Hyatt 2013-02-19 15:25:36 PST
Fixed in r143395.