[Webkit-unassigned] [Bug 9052] <canvas> content prints at screen resolution instead of printer resolution

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Oct 29 12:27:06 PDT 2007


andpoul at gmail.com changed:

           What    |Removed                     |Added
                 CC|                            |andpoul at gmail.com

------- Comment #1 from andpoul at gmail.com  2007-10-29 12:27 PDT -------
I think this is not possible due to the philosophy of <canvas> as a bitmap
graphics context (with vector input). Authors of <canvas> pages are relying on
the fact that certain operations take a small amout of time when done with
limited numbers of pixels, and the fact that when overwritten, pixels "go away"
meaning require no further storage.

However, if every drawing operation performed on the canvas is cached and then
replayed for printing, there could be a ton of drawing commands that
essentially make some pages non-printable because it would take forever to
compute what actually needed to be drawn for printing.

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