Re: Mouse events on a Cairo Context

[Stefan Salewski <mail ssalewski de>]

On Mon, 2013-07-01 at 17:42 +0200, Borja Mon Serrano wrote:

> The problem with (4) is drag&drop. I think it could be very difficult to
> deal with it, so I'm going to try the third solution, with goocanvasmm. Do
> you know any example of use of goocanvasmm?

Yes, drag&drop may be not very easy.
And zooming and panning/scrolling for a plain (cairo) drawing area may
be not really trivial, when you need to grab objects with the mouse.
I did try it two years ago from Ruby -- not really difficult, but it
takes some time to get the math right. Have not found time to clean it
up yet. ( http://www.ssalewski.de/PetEd.html.en)

Of course, if you do C++ and have not much experience in GTK already you
may try

https://qt-project.org/doc/qt-4.8/graphicsview.html

I have never find time and motivation to test that.