This removes the need for a separate setAction method.
The default action is the empty action, which does nothing. However,
a touch event on a button with the empty action is no longer considered
handled.
Menu::btnContextMenu was changed from a unique_ptr to a plain data
member.
It was only used to fetch resY, so I replaced that by taking the
y-coordinate as an argument. That is also more consistent with the
x-coordinate which was already an argument.
The x-coordinate was changed to a signed int, since that is the norm
for paint coordinates. It can be useful for drawing widgets that are
partially off screen, for example during a (dis)appear animation.
In InputDialog, the ButtonBox field was changed from a pointer to
a plain data member. There was no need to dynamically allocate it.
Previously, IconButton instances to be added to button boxes were
allocated with new, but never freed with delete.
unique_ptr makes sure the buttons will be freed along with the button
box that owns them, or when code calls ButtonBox::clear.
The destructor of ButtonBox has been made redundant by this change, so
it's gone.
There are a few exclusive operations for each type. Also we no longer
need the freeWhenDone flag since the class now determines whether the
surface should be freed or not.
This is the convention that most classes stick to. The likely reason
why Dialog didn't stick to the convention was to be able to provide
a default value for this argument, but that feature wasn't very useful
since every caller already had access to the default surface.
In well-described fonts, this enables multi-line text (e.g. in manuals) to be
more readable.
The term "height" is also replaced with "line spacing" in Font's code.
Originally the font implementation was based on SFont, but it was
recently replaced by an SDL_ttf based implementation, so the name
no longer made sense.
Initialize in constructor and clean up in destructor instead of having separate init() and deinit() methods.
Don't close file descriptor if open failed (ts_fd == -1).
Renamed initialized() to available(), since it tests whether the touch screen was found, not whether an initialization was attempted.
Improved code layout and minor other cleanups.
There was a lot of gp2x-specific code which was built for
all platform. For instance, the code was compiled for all
the platforms with the constant "TARGET_GP2X" defined.
This obviously had to be fixed.
