OpenGL examples: Introduce QCommandLineParser

Task-number: QTBUG-60626
Change-Id: I6d102327c89206fcdce10f3ac04e112270b11ad2
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 24 insertions, 3 deletions

diff --git a/examples/opengl/hellogl2/main.cpp b/examples/opengl/hellogl2/main.cpp
index 143f659eb6..b52a5a37d3 100644
--- a/examples/opengl/hellogl2/main.cpp
+++ b/examples/opengl/hellogl2/main.cpp
@@ -51,25 +51,46 @@
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QSurfaceFormat>
+#include <QCommandLineParser>
+#include <QCommandLineOption>
 
+#include "glwidget.h"
 #include "mainwindow.h"
 
 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);
 
+    QCoreApplication::setApplicationName("Qt Hello GL 2 Example");
+    QCoreApplication::setOrganizationName("QtProject");
+    QCoreApplication::setApplicationVersion(QT_VERSION_STR);
+    QCommandLineParser parser;
+    parser.setApplicationDescription(QCoreApplication::applicationName());
+    parser.addHelpOption();
+    parser.addVersionOption();
+    QCommandLineOption multipleSampleOption("multisample", "Multisampling");
+    parser.addOption(multipleSampleOption);
+    QCommandLineOption coreProfileOption("coreprofile", "Use core profile");
+    parser.addOption(coreProfileOption);
+    QCommandLineOption transparentOption("transparent", "Transparent window");
+    parser.addOption(transparentOption);
+
+    parser.process(app);
+
     QSurfaceFormat fmt;
     fmt.setDepthBufferSize(24);
-    if (QCoreApplication::arguments().contains(QStringLiteral("--multisample")))
+    if (parser.isSet(multipleSampleOption))
         fmt.setSamples(4);
-    if (QCoreApplication::arguments().contains(QStringLiteral("--coreprofile"))) {
+    if (parser.isSet(coreProfileOption)) {
         fmt.setVersion(3, 2);
         fmt.setProfile(QSurfaceFormat::CoreProfile);
     }
     QSurfaceFormat::setDefaultFormat(fmt);
 
     MainWindow mainWindow;
-    if (QCoreApplication::arguments().contains(QStringLiteral("--transparent"))) {
+
+    GLWidget::setTransparent(parser.isSet(transparentOption));
+    if (GLWidget::isTransparent()) {
         mainWindow.setAttribute(Qt::WA_TranslucentBackground);
         mainWindow.setAttribute(Qt::WA_NoSystemBackground, false);
     }