/*
 * To compile:
 *   cc test.c -o test $(pkg-config --libs --cflags gtk+-3.0 glib-2.0 cairo gio-2.0 poppler-glib)
 */

#include <stdlib.h>
#include <cairo/cairo.h>
#include <gio/gio.h>
#include <gio/gunixinputstream.h>
#include <gtk/gtk.h>
#include <poppler.h>

PopplerPage *page;

gboolean draw_cb(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
	cairo_set_source_rgb(cr, 1., 1., 1.);
	cairo_paint(cr);
	poppler_page_render(page, cr);
}

int main(int argc, char *argv[]) {
	gtk_init(&argc, &argv);

	// Open a file, read as stream to poppler
	GFile *arg = g_file_new_for_commandline_arg("test.pdf");
	GInputStream *input = G_INPUT_STREAM(g_file_read(arg, NULL, NULL));
	PopplerDocument *document = poppler_document_new_from_stream(input, -1, NULL, NULL, NULL);
	//g_object_unref(input);
	//g_object_unref(arg);

	// Extract a certain page
	int pageno = 0;
	page = poppler_document_get_page(document, pageno);

	// Create a window that displays said page
	GtkWidget *main = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_widget_set_size_request(main, 800, 1000);
	g_signal_connect(main, "draw", G_CALLBACK(draw_cb), NULL);
	g_signal_connect(main, "destroy", G_CALLBACK(gtk_main_quit), NULL);
	gtk_widget_show_all(main);

	gtk_main();
}