[Gambas-user] Drawing Areas, painting on them, and printing the results...

[Tobias Boege]

On Wed, 03 Sep 2014, Stephen wrote:
> On 09/03/2014 02:33 PM, Jussi Lahtinen wrote:
> >> You asked why am I using 10 drawing areas, oddly enough the answer is to
> >> simplify things from a layout standpoint...
> >
> > Just figure out how to draw one card and make multiple copies of it to same
> > one big drawing area..?
> >
> >
> Since each drawing area is the same size, the same drawing commands, 
> right down to the coordinates, are used to draw on each one, only a 
> portion of the contents of each small DrawingArea changes (in this case 
> its a QR Code). Everything else remains the same. The drawing portion of 
> the program does not have to be concerned with placing an item on a page 
> (one large DrawingArea), and it doesn't care where the DrawingArea it is 
> manipulating is going to be placed, another piece of code is concerned 
> with that functionality.
> All well and good, until we get to printing...
> >> Now to print the darn things.
> >>
> > Yeah... to print the things you need to give the same drawing commands to
> > the Printer object. See how above would make things simple...
> > Or you need to give picture of the wanted result for the Printer object.
> > Not sure what is reasonable way to do this.
> >
> >
> 
>   I was thinking of taking the panel containing the drawing areas, 
> turning it into one big bitmap, and then spooling that file off to the 
> printer. Has anyone out there done this kind of thing?
> 

Sounds a bit weird. A Printer object is also a potential drawing device,
so you shouldn't take screenshots to print something of which your program
knows how to reproduce it.

Do you have a feeling by now how painting works in Gambas (or how it is
supposed to work)? If not, I have some spare time the next days... As far
as my experience goes, painting is a black box for many newbies. But when
you get used to it, it makes kinda sense :-)

Regards,
Tobi

-- 
"There's an old saying: Don't change anything... ever!" -- Mr. Monk