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authorLiang Qi <liang.qi@qt.io>2017-11-09 11:05:03 +0100
committerLiang Qi <liang.qi@qt.io>2017-11-09 11:47:57 +0100
commit88cf04458002d863750e9121af7dcd9bcbfaa169 (patch)
treecaccae211eef1a27fa5caae3a8403830b615bd5e /examples/qtconcurrent/progressdialog/main.cpp
parent19b0ce5daa31e2ffebfcf2701143742302f1deb4 (diff)
parent579d0cb2bed193ccb1901b121a360f85d1c57a54 (diff)
Merge remote-tracking branch 'origin/5.9' into 5.10
Conflicts: src/gui/kernel/qwindow.cpp src/plugins/platforms/cocoa/qcocoawindow.mm src/plugins/platforms/windows/qwindowssystemtrayicon.cpp src/plugins/platforms/xcb/qxcbconnection_xi2.cpp tests/auto/corelib/io/qtemporarydir/tst_qtemporarydir.cpp tests/auto/widgets/kernel/qaction/tst_qaction.cpp Change-Id: Ifa515dc0ece7eb1471b00c1214149629a7e6a233
Diffstat (limited to 'examples/qtconcurrent/progressdialog/main.cpp')
-rw-r--r--examples/qtconcurrent/progressdialog/main.cpp34
1 files changed, 18 insertions, 16 deletions
diff --git a/examples/qtconcurrent/progressdialog/main.cpp b/examples/qtconcurrent/progressdialog/main.cpp
index 0f251c00f1..c277111813 100644
--- a/examples/qtconcurrent/progressdialog/main.cpp
+++ b/examples/qtconcurrent/progressdialog/main.cpp
@@ -51,24 +51,16 @@
#include <QtWidgets>
#include <QtConcurrent>
-using namespace QtConcurrent;
-
-const int iterations = 20;
+#include <functional>
-void spin(int &iteration)
-{
- const int work = 1000 * 1000 * 40;
- volatile int v = 0;
- for (int j = 0; j < work; ++j)
- ++v;
-
- qDebug() << "iteration" << iteration << "in thread" << QThread::currentThreadId();
-}
+using namespace QtConcurrent;
int main(int argc, char **argv)
{
QApplication app(argc, argv);
+ const int iterations = 20;
+
// Prepare the vector.
QVector<int> vector;
for (int i = 0; i < iterations; ++i)
@@ -80,10 +72,20 @@ int main(int argc, char **argv)
// Create a QFutureWatcher and connect signals and slots.
QFutureWatcher<void> futureWatcher;
- QObject::connect(&futureWatcher, SIGNAL(finished()), &dialog, SLOT(reset()));
- QObject::connect(&dialog, SIGNAL(canceled()), &futureWatcher, SLOT(cancel()));
- QObject::connect(&futureWatcher, SIGNAL(progressRangeChanged(int,int)), &dialog, SLOT(setRange(int,int)));
- QObject::connect(&futureWatcher, SIGNAL(progressValueChanged(int)), &dialog, SLOT(setValue(int)));
+ QObject::connect(&futureWatcher, &QFutureWatcher<void>::finished, &dialog, &QProgressDialog::reset);
+ QObject::connect(&dialog, &QProgressDialog::canceled, &futureWatcher, &QFutureWatcher<void>::cancel);
+ QObject::connect(&futureWatcher, &QFutureWatcher<void>::progressRangeChanged, &dialog, &QProgressDialog::setRange);
+ QObject::connect(&futureWatcher, &QFutureWatcher<void>::progressValueChanged, &dialog, &QProgressDialog::setValue);
+
+ // Our function to compute
+ std::function<void(int&)> spin = [](int &iteration) {
+ const int work = 1000 * 1000 * 40;
+ volatile int v = 0;
+ for (int j = 0; j < work; ++j)
+ ++v;
+
+ qDebug() << "iteration" << iteration << "in thread" << QThread::currentThreadId();
+ };
// Start the computation.
futureWatcher.setFuture(QtConcurrent::map(vector, spin));