2 files changed, 12 insertions, 10 deletions
diff --git a/examples/opengl/legacy/overpainting/bubble.cpp b/examples/opengl/legacy/overpainting/bubble.cpp
index afc50117d0..352e359cf9 100644
--- a/examples/opengl/legacy/overpainting/bubble.cpp
+++ b/examples/opengl/legacy/overpainting/bubble.cpp
@@ -50,6 +50,8 @@
 
 #include "bubble.h"
 
+#include <QRandomGenerator>
+
 Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity)
     : position(position), vel(velocity), radius(radius)
 {
@@ -80,10 +82,10 @@ void Bubble::drawBubble(QPainter *painter)
 
 QColor Bubble::randomColor()
 {
-    int red = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
-    int green = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
-    int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
-    int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0));
+    int red = int(205 + QRandomGenerator::global()->bounded(50));
+    int green = int(205 + QRandomGenerator::global()->bounded(50));
+    int blue = int(205 + QRandomGenerator::global()->bounded(50));
+    int alpha = int(91 + QRandomGenerator::global()->bounded(100));
 
     return QColor(red, green, blue, alpha);
 }
diff --git a/examples/opengl/legacy/overpainting/glwidget.cpp b/examples/opengl/legacy/overpainting/glwidget.cpp
index 7e9f4a5beb..1ec7bd731c 100644
--- a/examples/opengl/legacy/overpainting/glwidget.cpp
+++ b/examples/opengl/legacy/overpainting/glwidget.cpp
@@ -53,6 +53,7 @@
 #include "glwidget.h"
 
 #include <QMouseEvent>
+#include <QRandomGenerator>
 #include <QTime>
 
 #include <math.h>
@@ -67,7 +68,6 @@ GLWidget::GLWidget(QWidget *parent)
     : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
 {
     QTime midnight(0, 0, 0);
-    qsrand(midnight.secsTo(QTime::currentTime()));
 
     logo = 0;
     xRot = 0;
@@ -234,11 +234,11 @@ QSize GLWidget::sizeHint() const
 void GLWidget::createBubbles(int number)
 {
     for (int i = 0; i < number; ++i) {
-        QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))),
-                        height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))));
-        qreal radius = qMin(width(), height())*(0.0125 + 0.0875*qrand()/(RAND_MAX+1.0));
-        QPointF velocity(width()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0)),
-                        height()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0)));
+        QPointF position(width()*(0.1 + QRandomGenerator::global()->bounded(0.8)),
+                        height()*(0.1 + QRandomGenerator::global()->bounded(0.8)));
+        qreal radius = qMin(width(), height())*(0.0125 + QRandomGenerator::global()->bounded(0.0875));
+        QPointF velocity(width()*0.0125*(-0.5 + QRandomGenerator::global()->bounded(1.0)),
+                        height()*0.0125*(-0.5 + QRandomGenerator::global()->bounded(1.0)));
 
         bubbles.append(new Bubble(position, radius, velocity));
     }