Bug 23067 - [CG] Canvas: stroked text with pattern or gradient can have truncated miters
Summary: [CG] Canvas: stroked text with pattern or gradient can have truncated miters
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Canvas (show other bugs)
Version: 528+ (Nightly build)
Hardware: Mac OS X 10.5
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2009-01-01 13:51 PST by Simon Fraser (smfr)
Modified: 2020-10-29 14:02 PDT (History)
6 users (show)

See Also:

Attachments
Testcase (1.28 KB, text/html)
2009-01-01 13:58 PST, Simon Fraser (smfr) 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Simon Fraser (smfr) 2009-01-01 13:51:59 PST 
CanvasRenderingContext2D::drawTextInternal() uses the computed textRect as the size of the mask image created for painting text stroke with a gradient or pattern.

textRect is too small if stroking text, because it does not take the bounds of the stroke into account; it fails to account for miters etc.
Comment 1 Simon Fraser (smfr) 2009-01-01 13:58:02 PST 
Created attachment 26351 [details]
Testcase
Comment 2 Dirk Schulze 2009-02-05 12:39:51 PST 
Maybe Path::strokeBoundingRect() can help here. We moved it from SVG to Path. See SVGPaintServer.cpp and RenderObject.cpp for the usage.
Comment 3 Dirk Schulze 2009-02-27 00:25:47 PST 
Other platforms don't use clipToImageBuffer anymore. That means it's only a CG related bug.
My last suggestion can't work here. Text's are no paths :-P

But why using clipToImageBuffer for both, gradients and pattern. We just need it for gradients, right?
Comment 4 Radar WebKit Bug Importer 2020-10-29 14:02:43 PDT 
<rdar://problem/70824500>