Pango pixel width output test

pango_pxtest.c

#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include <cairo.h>
#include <pango/pangocairo.h>

int main (int argc, char **argv)
{
  if (argc != 3)
  {
     return 1;
  }
  char *text = argv[1];
  char *font = argv[2];
  cairo_surface_t *target = cairo_recording_surface_create(CAIRO_CONTENT_COLOR_ALPHA, NULL);
  cairo_t *cairo = cairo_create (target);
  PangoLayout *layout = pango_cairo_create_layout(cairo);
  PangoFontDescription *desc = pango_font_description_from_string(font);
  pango_layout_set_font_description(layout, desc);
  pango_layout_set_text(layout, text, -1);
  int text_width, text_height;
  pango_cairo_update_layout(cairo, layout);
  pango_layout_get_pixel_size(layout, &text_width, &text_height);
  char *pango_font_used = pango_font_description_to_string(desc);
  printf("Width of '%s' is %d\nUsing font: %s", text, text_width, pango_font_used);
}