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------- Additional comments from jdp...@openoffice.org Wed Sep 1 08:06:55 +0000 2010 ------- I note that many EPS images, but not all, contain a 'preview' image suitable for fast on-screen rendering. I would propose that * when documents are loaded, bounding boxes are rendered without contents * a background task/thread be used to generate initial renderings based on the embedded preview image(s). * a second background task be used to generate full-resolution images suitable for the current zoom level * when document is zoomed or scrolled, the last-available rendering be rescaled (as bitmap) to create the new rendering, until a new full-resolution image becomes available. * when images go off-screen, their rendering be kept in a limited-memory cache and only thrown out when the memory is needed for a newer image. If possible without a change to the file format, I would also suggest that if an EPS is embedded that does not contain a preview image, then a preview image be added to the .odt (etc) file, so that the EPS can be rendered, at least at low resoltion, until a better rendering is possible. Perhaps some kind of 'greyed out' our 'hourglass' icon or overlay could be used to indicate that a better rendering is still being prepared. FWIW I found that even 'simple' graphs do no rendering anywhere need fast enough for uninterrupted use experience. I will attach an example of such an EPS diagram, which, when inserted, causes noticeable delay. --------------------------------------------------------------------- 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: issues-unsubscr...@sw.openoffice.org For additional commands, e-mail: issues-h...@sw.openoffice.org --------------------------------------------------------------------- To unsubscribe, e-mail: allbugs-unsubscr...@openoffice.org For additional commands, e-mail: allbugs-h...@openoffice.org
