Thanks, these are clear words we need! I think it is very important to have clear explanations.
2011/7/3, Benoît Minisini <gam...@users.sourceforge.net>: >> I've tried to do exactly what I've done in G2: giving coordinates in >> original pixel sizes of the image. >> Can I set the resolution to 300 dpi and to use the originally measured >> horizontal and vertical pixel coordinates for printing? You know the >> program I'm working on is right about the using mouse coordinates for >> positioning the text, to avoid the unnecessary measurement >> coordinate's transformation. But as it seems to me, G3 is about how to >> make simple things complicated :( >> >> Thanks anyway, I'll try to fix it. >> >> Csaba >> > > There are three reasons for the new Printer API in Gambas 3 : > > - The Qt drawing model has changed. > - GTK+ got a printer API that uses Cairo. > - The Gambas 2 Printer API was blocking the GUI. > > So it is a bit more complicated now, as you have to use events, and the new > Paint class that mimics the Cairo API. > > Otherwise, there is no "unnecessary coordinate transformation". If you using > screen coordinates for printing in Gambas 2 worked, then it just means that > you were lucky. > > Because doing that is as false in Gambas 2 as it is in Gambas 3. > > In other words, you have to do coordinate transformation. > > To do that, for example, you draw inside the (0, 0, Printer.PaperWidth, > Printer.PaperHeight) rectangle, each unit being a millimeter. And before > calling the Paint method, you scale the rectangle to (0, 0, Draw.Width, > Draw.Height). > > To do this scaling, you have the "Paint matrix", i.e. the Paint.Scale() > method. > > I will try to add these explanations to the wiki. > > Regards, > > -- > Benoît Minisini > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2d-c2 > _______________________________________________ > Gambas-user mailing list > Gambas-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gambas-user > ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
