On 06/27/2012 08:21 AM, Ben Bucksch wrote:
I am unclear about gecko's dpi handling while printing.I need to have the webpage rendered with 600 dpi, i.e. an image with 600 pixels width should print with 1 inch width. Currently, the engines assumes web-like 100 dpi and prints in 6 inches. In my case, it's not a static <img>, but about a <div> that's built by JS. When the JS on the webpage asks about the size of the <div> in px, it must get 3000px as answer, but the <div> must print in say 21cm, printing these 3000px in these 21cm width. pref("layout.css.dpi", 600); (I'm in XULRunner) sounds like what I need, but it doesn't help. I tried <container style="width: 20cm"><div style="3000px">...</div></container>, but that doesn't work, it causes overflow. Also, printSettings.shrinkToFit = true; and printFrame.markupDocumentViewer.fullZoom = 10; don't help. I lack background knowledge about the layout engine to know how to approach this problem. Can somebody please point me in the right direction?
In CSS, the ratio of px to cm is fixed, so for a 600px image you want printed at 600dpi, size your image as 1in, rather than as 600px, and it should print properly. ~fantasai _______________________________________________ dev-tech-layout mailing list [email protected] https://lists.mozilla.org/listinfo/dev-tech-layout
