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6 Gui Design Principles Every Designer Should Know


Fluency will be irrelevant to authors if they aren’t motivated to tailor their interfaces, despite their numerous and vocal complaints today. Authors, being further from the machine than programmers, and ignorant of computer science to boot, will continue to accept what’s given to them, never knowing that better is possible, so they’ll never demand it. One way around this is to observe that Fluency doesn’t have to be useful to all non-programmers to be useful. All it takes is for it to lower the entry bar to a larger population of non-programmers than we have now. If we do that then demand for it should grow as completely unskilled non-programmers ask less unskilled non-programmers to help them alter their Fluent user interfaces. Beyond some level of complexity, even visual programming turns into programming.

Snapping Ui

  • Each user could be represented by a separate user Widget, all of which are instantiated in each interface instance running on those multiple machines, with each remote user feeding Events to a unique Port of the Holder that is Fluency on each local machine.
  • A single interface running on a networked computer could then have multiple users, with each user on a different machine, but with all users seeing the same user interface.
  • That Widget can have Actions and Events, just as any other Widget, and it can be linked to other Widgets, just as any other Widget.
  • Such joint movement can also be conditional on various Events .
  • Similarly, Fluency can have (non-visual) `user Widgets’ which allow the same sorts of things but for users of the interface during runtime.

Programmers are good with complexity but may find visual programming too frustrating, if the same effect might be achieved with less effort by direct coding. However, while hard-coding makes much more efficient use of the computer’s time, it’s only useful after the right design has been found. Allowing Widget-link scripting, though, should be relatively easy. Fluency might also let source-code programmers bypass the visual interface for building new Widgets and let them code Widgets directly for incorporation into Fluency. This has to be done with great caution though, or Fluency will rapidly turn into yet another source-code-based builder.

List Of Gui Builders

Producing new Fluencies, or new visual, functional, or service Widgets for any one Fluency could easily become cottage industries among programmers if authors were to widely adopt Fluency. software construccion There’s also no reason that authors can’t simply advertise for any new kinds of Widgets that they need to make their latest user interface, then pay programmers to supply them.

graphical user interface builder

You run the designer application and setup your GUI layout using frames, buttons, inputs and other widgets. Once you’re happy with the layout you can generate the final XML as a “.ui” file. The “.ui” file can be passed to Pygubu in your underlying application code using pygubu.Builder() from the core Pygubu module. If Fluency is successful, the wiring behind every Fluent user interface could become utterly impenetrable to anyone but its creator—in other words, exactly what programs are when written by most programmers. One bad consequence would be that help desks can no longer function. On the other hand, maybe they won’t be as necessary, either, since Fluent user interfaces will be more flexibly fixable anyway. Further, common Fluency style sheets might evolve, so that authors and users could apply their own to any Fluent user interface and have it conform in some recognizable way to more familiar user interface conventions.

Fluent user interfaces might be too inefficient for practical use. But if so, Fluency might eventually support `graph compilation,’ by transforming Widget Actions into public Widget methods, then converting Widget links into direct method calls. If even a `compiler’ version of Fluency produces user interfaces that are too slow, they can still be useful as prototypes for programmers to then hardcode once they stabilize. That’s not the ideal solution, but it’s still far better than anything we have today. Seventh, the lack of testing extends to the user interface that Fluency is intended to build. Fluency doesn’t yet allow its author to attach a testing harness to the building user interface, so author debugging of a Fluent user interface is still in full trial-and-error mode.

graphical user interface builder

Of course, that in itself is no different from any other user-interface builder out there. This problem, in and of itself, is survivable, as is shown by web browsers which, even today, don’t have good error reporting either —they either work the way the author expects, or they don’t. Still though, it could become a growing problem when Fluency finally gets used for complex user interfaces (assuming nothing’s done about the above frontend linkage modularization problem before then). For example, in Fluency, Actions like Enable and Disable are common to all Widgets, visual or non-visual, and Hide and Show are common to all visual Widgets. Thus, a bank of Widgets, a set of radio buttons in a panel, say, can be a Widget all by itself, as opposed to the radio buttons, or the panel that may visually contain the radio buttons. An author can thus specify when that whole bank-of-buttons Widget should Enable, Disable, Hide, or Show by specifying when the Holder containing it should receive the appropriate triggering Events.

Is bash a GUI?

Bash comes with many other GUI tools, in addition to “whiptail” such as “dialog” which can be used to make programming and executing tasks within Linux much easier and fun to work with.

Banks of buttons can then be made to appear or disappear at any time, and they can be overlaid near where the user’s mouse is, not necessarily embedded in some fixed area in the user interface. Since, outside of Fluency, there are no non-visual widgets, all non-Fluent user-interface programmers today are forced to use visual widgets—like frame, panel, dialog, and canvas—as widget containers. That forced choice then forces every widget to belong to exactly one container. That then forces all widgets into a tree structure, which simplifies event propagation among widgets, widget layout, and display refresh for widgets when their screen areas are damaged. Compound widgets are sets of widgets that function as units.

It’s not yet common today, but there’s no reason such compounds couldn’t also be much more complex, like a text editor (example, Swing’sJEditorPane), web browser, spreadsheet, news reader, mail reader, p2p program, or whatever. Compounds use `containers’ to enforce group behavior on `contained’ widgets. In an airplane cockpit, the analogy might be to a bank of switches controlling the plane’s radio. Those switches shouldn’t be randomly mixed in with switches that control the flaps or engine. You don’t want pilots to flip a switch thinking that it’s for radioing the tower, then find that they missed the right switch and flipped an identical-looking nearby one, forcing the plane into a power dive 50 feet above the runway. Further, just because Fluency is free, there’s no reason all versions of Fluency need be free, or even that any of the various kinds of Widgets that any particular Fluency needs have to be free.

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Posted: Wed, 01 Apr 2020 07:00:00 GMT [source]