Hi Alban, Thanks for this. I've committed it to svn.
Andrew On Thu, Aug 20, 2009 at 11:50:34AM +0100, Rochel, Alban wrote: > Hello all, > > Here is a patch for the Qt driver. It fixes a couple of minor bugs, and it > also adds the possibility to pass PLplot command line arguments to the qtext > driver (embedded widget in a Qt application) and handles flush and clear for > the interactive devices. However, there still are issues with these > implementations: > > - Command line arguments for the qtext driver: > The user has to pass argc and argv to plsetqtdev (the function that > associates the widget to the device). But in order to create a QApplication, > the user has to pass argc and argv to the QApplication constructor before, > which filters out the arguments it recognizes, including the "-bg" argument > (conflict between Qt and PLplot). I believe the only way to fix this other > than changing "-bg" into something else in PLplot is to make a deep copy of > argv before passing it to the QApplication constructor and passing this copy > to plsetqtdev. Thus, it's up to the application developer to handle such > matters. You can see this issue with qt_example: > "qt_example -bg FF000" will display a Qt warning message and go on with the > default bg colour > "qt_example -cmap0 _whatever_" will work properly > > - flushing: it works, but example x17c is *slow* (about 30 times slower than > xwin on my system!). This is because the Qt driver will replot everything > from the last clear() everytime the flush is done. This is linked to the way > the driver was designed, and despite my efforts, I haven't found a quick and > easy way to fix this. I still plan to fix this, but it will require some > redesign. In the meantime, people who wish to use the Qt driver to animate > stuff may be happy to use the new "lines_antialiasing" command-line option > which allows to (dis/en)able lines antialiasing (enabled by default), which > makes the driver about 5 times slower than xwin. > > Despite these flaws, as this update adds features and should not break > anything, I believe it's worth adding to the svn trunk. > > Alban > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Plplot-devel mailing list > Plplot-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/plplot-devel ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
