To comment on the following update, log in, then open the issue: http://www.openoffice.org/issues/show_bug.cgi?id=112193 Issue #|112193 Summary|Aqua: avoid vertically-flipped graphics contexts Component|gsl Version|OOo 3.2 Platform|Macintosh URL| OS/Version|Mac OS X Status|NEW Status whiteboard| Keywords| Resolution| Issue type|ENHANCEMENT Priority|P3 Subcomponent|code Assigned to|pl Reported by|hdu
------- Additional comments from [email protected] Mon Jun 7 14:27:08 +0000 2010 ------- The VCL coordinate system is vertically flipped compared to the Quartz coordinate system. There are two possible approaches to handle this: 1. use a y-flipped height-shifted CTM for the graphics context to allow using VCL coordinates directly 2. flip y-coordinates manually before operating on a unity-CTM graphics context OOo's aqua-port choose method 1 and both approaches should work the same. Unfortunately it shows that OSX implements some improvements only for unity-CTM graphics contexts. Moving the baseline of text to pixel boundaries is probably the most important thing that is missing in y-flipped contexts, which cannot be emulated by moving the text coordinates. This results in grayish text baselines for y- flipped contexts whereas a unity-CTM graphics context gets higher contrast baselines. Unless Quartz/ATSUI/CoreText provide the chance to get the same look also for flipped-CTM graphics contexts we should consider to re-implement the VCL->Quartz glue code with approach 2 mentioned above. --------------------------------------------------------------------- Please do not reply to this automatically generated notification from Issue Tracker. Please log onto the website and enter your comments. http://qa.openoffice.org/issue_handling/project_issues.html#notification --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
