simple-example.c

Simple example of how to use this

/*
 *                           0BSD 
 * 
 *                    BSD Zero Clause License
 * 
 *  Copyright (c) 2019 Hermann Meyer
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted.
 
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 *
 */
 
 
 
#include "xputty.h"
#include "xwidgets.h"
 
/* 
 * this is our own expose call to draw the window 
 */
static void draw_window(void *w_, void* user_data) {
    Widget_t *w = (Widget_t*)w_;
    use_bg_color_scheme(w, get_color_state(w));
    cairo_paint (w->crb);
}
 
int main (int argc, char ** argv)
{
    /* Reference to Xputty struct */
    Xputty app;
    /* init Xputty */
    main_init(&app);
    /* create a window with decoration on default screen */
    Widget_t *w = create_window(&app, os_get_root_window(&app, IS_WINDOW), 0, 0, 300, 200);
    /* set the window title */
    os_set_title(w, "Hello world");
    /* overwrite the expose function callback to implement your own */
    w->func.expose_callback = draw_window;
    /* map the widget on screen */
    widget_show_all(w);
    /* run the main loop */
    main_run(&app);
    /* clean up after run, close the widget with the cross in the window title bar */
    main_quit(&app);
    return 0;
}