URL:
<http://savannah.gnu.org/bugs/?45122>
Summary: [base][patch] Pattern phase support
Project: GNUstep
Submitted by: tedge
Submitted on: Sun 17 May 2015 09:41:52 PM GMT
Category: Backend
Severity: 3 - Normal
Item Group: Bug
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
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Details:
Setup: VirtualBox 4.3 + Ubuntu 14.04 guest, Clang, current SVN trunk
Patch adds support for the NSGraphicsContext's patternPhase offset when
drawing a pattern. (Patterns are currently always drawn with zero offset,
regardless of the draw context's patternPhase value).
Pattern phase is useful for scrolling or animating a pattern-filled area, as
well as for tiling a pattern that's pinned to a nonzero origin.
Patch also corrects a minor issue with getting the pattern size: The size
message is sent to a safer target object - the received parameter,
pattern_image - instead of the instance member, pattern. (Seems like they're
always the same object, but it's safer not to assume this).
Test program is also attached.
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File Attachments:
-------------------------------------------------------
Date: Sun 17 May 2015 09:41:52 PM GMT Name: TestPatternPhase.m Size: 2kB
By: tedge
<http://savannah.gnu.org/bugs/download.php?file_id=34039>
-------------------------------------------------------
Date: Sun 17 May 2015 09:41:52 PM GMT Name: back_PatternPhase.patch Size:
2kB By: tedge
<http://savannah.gnu.org/bugs/download.php?file_id=34038>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?45122>
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