Le 19 juillet 2011 16:10, Benoît Minisini <gam...@users.sourceforge.net> a écrit : >> Le 19 juillet 2011 15:40, Benoît Minisini >> >> <gam...@users.sourceforge.net> a écrit : >> >> Benoit, >> >> >> >> Paint.scale work good if there is not text ..; but if there is ... >> >> then text font size is increased by the scale too >> > >> > This is normal. This it the goal of that matrix: everything is scaled. I >> > added a remark about that on the "How to print" wiki page. >> > >> > And your SC() function is incorrect, as it assumes that Paint.Width and >> > Paint.Height use Point units. Which is the case in Qt apparently, but you >> > must not make such assumptions. >> >> well i've just say i want to talk in millimeter ... nothing more. >> >> I have two property ... a value in point (yes paint.height MUST to be >> always in point) and a resolution. >> >> i know how many point i've in one inch ... i know how many >> millimerters in one inch (25.4) so i've done a small function that >> convert >> mm in nbr points for the current painting device to match the value in mm. >> >> well it's not perfect ... but is there another way ? (it's the way >> used internally by gb.report) >> > > Don't suppose that Paint.Width or Paint.Height are points. But you can be sure > that the number of units of Paint.Width equals Printer.PaperWidth in > millimeters (provided that FullPage is set of course). > >> >> Then M.Cs say : what about printer natural margins ? How to know them >> ? Is there a way to retrive them ? > > Logically yes, but if I didn't do it, I would say there is a problem. > > Anyway, I have designed and printed a lot of report of hundreds of pages on > many many different printers in my previous job. Trust me, you should not take > these margins into account, and always use the full page to print. > >> >> For exemple he have a paper pattern (caneva) he need to place exactly >> text on it ... on different printers.. but the natural printers >> margins are not taked into account . >> >> For reports or others, we need to be sure to start from O,O to >> pagetolalW, pagetotalH without any margins. But we need to know >> margins to alert the user when he draw sometning > > This is up to the printer driver normally. > > Users know there is a non-printable margin. If they don't, they will learn > quickly at the first print. By not using what the printer driver may report > about its margins, the user have to define its own margin, and so its printing > will be the same whatever the printer is. > > And think about generating a PDF and then sending it to the printer. When are > the printer margins taken into account? Do you have a margin inside the PDF, > and then another margin when printing? > > So, don't use printer margins. Use user-defined margins. > > Of course, if I find a way to get these printer margins accurately, I will add > the needed properties to the Printer class. > > But as I said loudly, this is not a good idea. I'm even thinking about > removing the FullPage property and set it to TRUE by default!
Do It !!!! And if you found a way to get printer margins ... just add read only properties ... we just need to know the printer minimal capabilities to set up users magins accurately > > -- > Benoît Minisini > > ------------------------------------------------------------------------------ > Magic Quadrant for Content-Aware Data Loss Prevention > Research study explores the data loss prevention market. Includes in-depth > analysis on the changes within the DLP market, and the criteria used to > evaluate the strengths and weaknesses of these DLP solutions. > http://www.accelacomm.com/jaw/sfnl/114/51385063/ > _______________________________________________ > Gambas-user mailing list > Gambas-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gambas-user > -- Fabien Bodard ------------------------------------------------------------------------------ Magic Quadrant for Content-Aware Data Loss Prevention Research study explores the data loss prevention market. Includes in-depth analysis on the changes within the DLP market, and the criteria used to evaluate the strengths and weaknesses of these DLP solutions. http://www.accelacomm.com/jaw/sfnl/114/51385063/ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user