Qt添加第三方字体

最近开发项目时，据说不能用系统自带的微软雅黑字体，于是找一个开源的字体，思源黑体，这个是google和Adobe公司合力开发的可以免费使用。本篇记录一下Qt使用第三方字体的方式。字体从下载之家下载http://www.downza.cn/soft/266042.html。下载解压后有8种字体

代码实现

#include "mainwindow.h"
#include <QFont>
#include <QFontDatabase>
#include <QApplication>
#include <QDebug>int main(int argc, char *argv[])
{QApplication a(argc, argv);QString path = QCoreApplication::applicationDirPath();int fontIndex = 0;switch (fontIndex) {case 0:path = path + QString("/font/SourceHanSans-Bold.otf");break;case 1:path = path + QString("/font/SourceHanSans-CNBold.ttf");break;case 2:path = path + QString("/font/SourceHanSans-ExtraLight.otf");break;case 3:path = path + QString("/font/SourceHanSans-Heavy.otf");break;case 4:path = path + QString("/font/SourceHanSans-Light.otf");break;case 5:path = path + QString("/font/SourceHanSans-Medium.otf");break;case 6:path = path + QString("/font/SourceHanSans-Normal.ttf");break;case 7:path = path + QString("/font/SourceHanSans-Regular.ttf");break;default:path = path + QString("/font/SourceHanSans-CNBold.ttf");break;}int fontId = QFontDatabase::addApplicationFont(path);QStringList fontFamilies = QFontDatabase::applicationFontFamilies(fontId);if (!fontFamilies.empty()){QString fontFamily = fontFamilies.at(0);QFont defaultFont = a.font();defaultFont.setFamily(fontFamily);defaultFont.setPixelSize(15);a.setFont(defaultFont);}MainWindow w;w.show();return a.exec();
}

运行效果：