main.cpp

#include <QApplication>
#include <QString>
#include <iostream>
#include <getopt.h>
#include "resourcemanager.h"
#include "viewer.h"

using namespace std;


static void print_help(char *name) {
	cout << "Usage:" << endl;
	cout << "  " << name << " [OPTIONS] FILE" << endl;
	cout << endl;
	cout << "Options:" << endl;
	cout << "  -p, --page NUM      Start showing page NUM" << endl;
	cout << "  -f, --fullscreen    Start in fullscreen mode" << endl;
	cout << "  -h, --help          Print this help and exit" << endl;
}

int main(int argc, char *argv[]) {
	QApplication app(argc, argv);

	// parse command line options
	int start_page = 0;
	bool fullscreen = false;

	struct option long_options[] = {
		{"page",		required_argument,	NULL,	'p'},
		{"fullscreen",	no_argument,		NULL,	'f'},
		{"help",		no_argument,		NULL,	'h'},
		{NULL, 0, NULL, 0}
	};
	int c;
	int option_index = 0;
	while (1) {
		c = getopt_long(argc, argv, "+p:fh", long_options, &option_index);
		if (c == -1) {
			break;
		}
		switch (c) {
			case 'p':
				// currently no warning message on wrong input
				start_page = atoi(optarg) - 1;
				break;
			case 'f':
				fullscreen = true;
				break;
			case 'h':
				print_help(argv[0]);
				return 0;
			default:
				// getopt prints an error message
				return 1;
		}
	}

	if (argv[optind] == NULL) {
		cerr << "Not enough arguments" << endl;
		return 1;
	}

	Viewer katarakt(QString::fromUtf8(argv[optind]), start_page, fullscreen);
	if (!katarakt.is_valid()) {
		return 1;
	}

	return app.exec();
}