grim/libgnt

make gnt.h a single include file

2020-08-13, Gary Kramlich
23e34422bea8
make gnt.h a single include file

Move the ncurses bits to a new gntncurses.h.in setup

Move all the function prototypes from gnt.h to gntmain.h since thats where they should be

Move the KEY_EVENT undef to gntncurses.h as that's where it is needed

create a global header file and don't let the library use it

Add the single include header guards and deal with fall out

Testing Done:
Compile testing and ran all of the manual tests.

Reviewed at https://reviews.imfreedom.org/r/62/
#include <gnt.h>
int main()
{
GntWidget *win, *button;
gnt_init();
gnt_util_parse_widgets("<vwindow id='0' fill='0' align='2'><label>This is a test.</label><button id='1'>OK</button></vwindow>", 2, &win, &button);
g_signal_connect_swapped(G_OBJECT(button), "activate", G_CALLBACK(gnt_widget_destroy), win);
gnt_widget_show(win);
gnt_main();
gnt_quit();
return 0;
}