Remove deprecated QGL* classes

Removes QGL paths in sub-attaq and chip examples.

The boxes example depended on QGL and has been removed.

The corresponding module and test directories for the opengl module are now
empty, but has been left there so we can move the QOpenGL* classes there.

[ChangeLog][QtOpenGL] The deprecated QGL* classes have been removed.

Fixes: QTBUG-74408
Change-Id: I52f56409af8f6901359462a7ba162103d051fe3d
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

3 files changed, 0 insertions, 24 deletions

diff --git a/examples/widgets/graphicsview/chip/chip.pro b/examples/widgets/graphicsview/chip/chip.pro
index a46f07ce35..508928d026 100644
--- a/examples/widgets/graphicsview/chip/chip.pro
+++ b/examples/widgets/graphicsview/chip/chip.pro
@@ -6,7 +6,6 @@ SOURCES += mainwindow.cpp view.cpp chip.cpp
 
 QT += widgets
 qtHaveModule(printsupport): QT += printsupport
-qtHaveModule(opengl): QT += opengl
 
 build_all:!build_pass {
     CONFIG -= build_all
diff --git a/examples/widgets/graphicsview/chip/view.cpp b/examples/widgets/graphicsview/chip/view.cpp
index 21998dc2df..77a6310778 100644
--- a/examples/widgets/graphicsview/chip/view.cpp
+++ b/examples/widgets/graphicsview/chip/view.cpp
@@ -57,11 +57,7 @@
 #include <QPrintDialog>
 #endif
 #endif
-#ifndef QT_NO_OPENGL
-#include <QtOpenGL>
-#else
 #include <QtWidgets>
-#endif
 #include <QtMath>
 
 #if QT_CONFIG(wheelevent)
@@ -156,14 +152,6 @@ View::View(const QString &name, QWidget *parent)
     antialiasButton->setText(tr("Antialiasing"));
     antialiasButton->setCheckable(true);
     antialiasButton->setChecked(false);
-    openGlButton = new QToolButton;
-    openGlButton->setText(tr("OpenGL"));
-    openGlButton->setCheckable(true);
-#ifndef QT_NO_OPENGL
-    openGlButton->setEnabled(QGLFormat::hasOpenGL());
-#else
-    openGlButton->setEnabled(false);
-#endif
     printButton = new QToolButton;
     printButton->setIcon(QIcon(QPixmap(":/fileprint.png")));
 
@@ -179,7 +167,6 @@ View::View(const QString &name, QWidget *parent)
     labelLayout->addWidget(dragModeButton);
     labelLayout->addStretch();
     labelLayout->addWidget(antialiasButton);
-    labelLayout->addWidget(openGlButton);
     labelLayout->addWidget(printButton);
 
     QGridLayout *topLayout = new QGridLayout;
@@ -200,7 +187,6 @@ View::View(const QString &name, QWidget *parent)
     connect(selectModeButton, &QAbstractButton::toggled, this, &View::togglePointerMode);
     connect(dragModeButton, &QAbstractButton::toggled, this, &View::togglePointerMode);
     connect(antialiasButton, &QAbstractButton::toggled, this, &View::toggleAntialiasing);
-    connect(openGlButton, &QAbstractButton::toggled, this, &View::toggleOpenGL);
     connect(rotateLeftIcon, &QAbstractButton::clicked, this, &View::rotateLeft);
     connect(rotateRightIcon, &QAbstractButton::clicked, this, &View::rotateRight);
     connect(zoomInIcon, &QAbstractButton::clicked, this, &View::zoomIn);
@@ -250,13 +236,6 @@ void View::togglePointerMode()
     graphicsView->setInteractive(selectModeButton->isChecked());
 }
 
-void View::toggleOpenGL()
-{
-#ifndef QT_NO_OPENGL
-    graphicsView->setViewport(openGlButton->isChecked() ? new QGLWidget(QGLFormat(QGL::SampleBuffers)) : new QWidget);
-#endif
-}
-
 void View::toggleAntialiasing()
 {
     graphicsView->setRenderHint(QPainter::Antialiasing, antialiasButton->isChecked());
diff --git a/examples/widgets/graphicsview/chip/view.h b/examples/widgets/graphicsview/chip/view.h
index ea7bd414f5..b780702c34 100644
--- a/examples/widgets/graphicsview/chip/view.h
+++ b/examples/widgets/graphicsview/chip/view.h
@@ -94,7 +94,6 @@ private slots:
     void setResetButtonEnabled();
     void setupMatrix();
     void togglePointerMode();
-    void toggleOpenGL();
     void toggleAntialiasing();
     void print();
     void rotateLeft();
@@ -106,7 +105,6 @@ private:
     QLabel *label2;
     QToolButton *selectModeButton;
     QToolButton *dragModeButton;
-    QToolButton *openGlButton;
     QToolButton *antialiasButton;
     QToolButton *printButton;
     QToolButton *resetButton;