UltraGrid/gui/QT/main.cpp

#include <QApplication>
#include <QString>
#include <QStringList>
#include <QProcess>
#include <QCoreApplication>
#include <QMessageBox>
#include <QSurfaceFormat>
#include <clocale>
#include <cstring>

#include "ultragrid_window.hpp"

static bool show_help(char *argv[]) {
	const char *progname = argv[0];
	while (*argv != NULL) {
		if (strcmp(*argv, "-h") == 0 || strcmp(*argv, "--help") == 0) {
			printf("Usage:\n");
			printf("\t%s [-h|--help|--with-uv <uv>|--config <config_path>]\n", progname);
			return true;
		}
		argv++;
	}
	return false;
}

int main(int argc, char *argv[]){
	if (show_help(argv)) {
		return 0;
	}
	QApplication app(argc, argv);
	QStringList args = QCoreApplication::arguments();
	QString ultragridExecutable = UltragridWindow::findUltragridExecutable();
	QProcess process;

	//important: If this line is removed parsing float numbers for vu meter fails
	std::setlocale(LC_NUMERIC, "C");

	QSurfaceFormat fmt;
	fmt.setDepthBufferSize(24);
	fmt.setStencilBufferSize(8);
	fmt.setVersion(3, 3);
	fmt.setProfile(QSurfaceFormat::CoreProfile);
	QSurfaceFormat::setDefaultFormat(fmt);

	UltragridWindow uw;
	uw.show();

	process.start(ultragridExecutable, QStringList());
	if(process.waitForStarted(1000) == false) {
		QMessageBox msgBox;
		msgBox.setText(ultragridExecutable + " doesn't seem to be executable.");
		msgBox.setInformativeText("Please install uv (UltraGrid binary) to your system "
				"path or supply a '--with-uv' parameter.\n\n"
				"Please check also if the binary is executable.");
		msgBox.setIcon(QMessageBox::Critical);
		msgBox.exec();
		return 1;
	}

	process.waitForFinished();

	if (process.exitStatus() == QProcess::CrashExit || process.exitCode() != 0) {
		QMessageBox msgBox;
		msgBox.setText("UltraGrid has crashes when invoked without arguments!");
		msgBox.setIcon(QMessageBox::Critical);
		msgBox.exec();
		return 1;
	}

	uw.initializeUgOpts();
	return app.exec();
}

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