View source for SoC Ideas Gui2 Input

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=Description=
<h2>Port Wesnoth input framework to a more flexible system</h2>
Page for the idea: [[SoC_Ideas_Gui2_Input]]

Since 2007, Wesnoth has been rewriting its GUI system with a more flexible system
allowing all user interface aspect to be specified through WML. One of the
changes has been to change the GUI input system. The input system still only
support keyboard and mouse. With the rise of the more powerful hand-held
devices(hand-held game consoles and phones) Wesnoth gets ported to these
devices as well. The scope of this SoC project is to add more different kind
of input devices like pads and touch screens.

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= Additional Information =
The project is divided in several sub projects:
* Add the new input devices to the gui2 framework.
* Make it possible to select and configure the input devices.
* Port the gui1 interfaces to use the new input sub system.

In the sections below the steps are discussed in more detail.

== Add devices to gui2 ==
The SDL project is currently working on version 1.3 of their library, which
has several improvements for the iPhone. SDL hasn't been released yet and
there's no firm release date yet. It would be interesting to see whether the
input system can use SDL-1.2 and SDL-1.3 with some ifdefs.

== Configure input devices ==
Since the number of buttons and placements of the button differ per device
the user should be able to configure which buttons to use and assign
functions to them. A dialog should be added for this. Preferably the dialog
also shows which button is pressed at a certain moment so the user can see
how Wesnoth calls the button on that device.

== Port gui1 to new sub system ==
Once the gui2 part can use the new input system it also needs to be ported
to the old input system. (Porting the old gui is long process, porting the
input system will be faster and easier.)