On Tue, 2013-04-02 at 12:38 +0200, Fabien Bodard wrote: > You need to use a usercontrol and a drawing area. Then withvthe draw class > all becomebpossible > Le 1 avr. 2013 13:30, "Tobias Boege" <[email protected]> a écrit : > > > On Mon, 01 Apr 2013, Bruce wrote: > > > A user had a good idea and wants to know if we can build a form with > > > sliders that control both the maxima and minima of various parameters. > > > > > > I have attached a mocked up picture of the sort of thing that is > > > required for a "squeeze" filter i.e. a low bandpass combined with a high > > > band-limiter. Similar things could be imagined for a "flange" type of > > > filter. > > > > > > There are some controls in Gimp, for example (in second attachment) that > > > further show what is required. > > > > > > I have made a couple of preliminary attempts to create a custom control > > > in Gambas3 to do this but I am not getting very far. The problems are: > > > a) being able to detect which handle the user is trying to move and > > > b) stopping the min handle from exceeding the max handle and v.v. > > > > > > Has anyone attempted this type of control (successfully)? > > > Has anyone got any good ideas? > > > > Sorry, I understood only half of what you said but the pictures hopefully > > told the rest. I have a project here where a guy implemented a Slider on > > his > > own to allow custom graphics in place of the handle. I never really read > > the > > sources of that project nor do I think that it's well written but maybe it > > can help you. > > > > Since the "HorizontalFader" (what this means, I don't know), which is the > > Slider, does not inherit the basic Slider itself but builds on UserControl > > there will certainly be something in there that can give you at least a > > clue > > about how to make one handle - and a second can't be too difficult then :-) > > > > Regards, > > Tobi
Thanks to both of you. I haven't got much further on this but there seems to be some good ideas to follow up. I have some "work pressure" going on, so it may be some time before I can take this up again. But.... "I'll be back". regards Bruce ------------------------------------------------------------------------------ Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html _______________________________________________ Gambas-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gambas-user
