Qt started to support std::chrono since Qt 5.8.

src/app/puzzle/vpmainwindow.cpp

@@ -391,7 +391,7 @@ VPMainWindow::VPMainWindow(const VPCommandLinePtr &cmd, QWidget *parent) :
 
     if (m_cmd->IsGuiEnabled())
     {
-        QTimer::singleShot(SECONDS(1), this, &VPMainWindow::SetDefaultGUILanguage);
+        QTimer::singleShot(V_SECONDS(1), this, &VPMainWindow::SetDefaultGUILanguage);
     }
 }
 

src/app/tape/tmainwindow.cpp

@@ -245,7 +245,7 @@ TMainWindow::TMainWindow(QWidget *parent)
 
     if (MApplication::VApp()->IsAppInGUIMode())
     {
-        QTimer::singleShot(SECONDS(1), this, &TMainWindow::SetDefaultGUILanguage);
+        QTimer::singleShot(V_SECONDS(1), this, &TMainWindow::SetDefaultGUILanguage);
     }
 }
 

src/app/valentina/dialogs/dialoglayoutprogress.cpp

@@ -88,7 +88,7 @@ DialogLayoutProgress::DialogLayoutProgress(QElapsedTimer timer, qint64 timeout,
             m_progressTimer->stop();
         }
     });
-    m_progressTimer->start(SECONDS(1));
+    m_progressTimer->start(V_SECONDS(1));
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/app/valentina/dialogs/vwidgetdetails.cpp

@@ -96,7 +96,7 @@ void VWidgetDetails::UpdateList()
     // The filling table is a very expensive operation. This optimization will postpone it.
     // Each time a new request happen we will wait 800 ms before calling it. If at this time a new request will arrive
     // we will wait 800 ms more. And so on, until nothing happens within 800ms.
-    m_updateListTimer->start(MSECONDS(800));
+    m_updateListTimer->start(V_MSECONDS(800));
 }
 
 //---------------------------------------------------------------------------------------------------------------------

src/app/valentina/mainwindow.cpp

@@ -474,7 +474,7 @@ MainWindow::MainWindow(QWidget *parent)
 
     if (VApplication::IsGUIMode())
     {
-        QTimer::singleShot(SECONDS(1), this, &MainWindow::SetDefaultGUILanguage);
+        QTimer::singleShot(V_SECONDS(1), this, &MainWindow::SetDefaultGUILanguage);
     }
 }
 
@@ -2139,7 +2139,7 @@ void MainWindow::MeasurementsChanged(const QString &path)
     {
         m_mChanges = true;
         m_mChangesAsked = false;
-        m_measurementsSyncTimer->start(MSECONDS(1500));
+        m_measurementsSyncTimer->start(V_MSECONDS(1500));
     }
     else
     {
@@ -2149,7 +2149,7 @@ void MainWindow::MeasurementsChanged(const QString &path)
             {
                 m_mChanges = true;
                 m_mChangesAsked = false;
-                m_measurementsSyncTimer->start(MSECONDS(1500));
+                m_measurementsSyncTimer->start(V_MSECONDS(1500));
                 break;
             }
 
@@ -6010,7 +6010,7 @@ auto MainWindow::LoadPattern(QString fileName, const QString& customMeasureFile)
         {
             /* Collect garbage only after successfully parse. This way wrongly accused items have one more time to restore
              * a reference. */
-            QTimer::singleShot(100, Qt::CoarseTimer, this, [this](){doc->GarbageCollector(true);});
+            QTimer::singleShot(V_MSECONDS(100), Qt::CoarseTimer, this, [this](){doc->GarbageCollector(true);});
         }
 
         m_patternReadOnly = doc->IsReadOnly();

src/app/valentina/xml/vpattern.cpp

@@ -119,6 +119,13 @@
 #include <QTimer>
 #include <functional>
 
+#if __cplusplus >= 201402L
+using namespace std::chrono_literals;
+#else
+#include "../vmisc/bpstd/chrono.hpp"
+using namespace bpstd::literals::chrono_literals;
+#endif
+
 const QString VPattern::AttrReadOnly    = QStringLiteral("readOnly");
 const QString VPattern::AttrLabelPrefix = QStringLiteral("labelPrefix");
 
@@ -275,7 +282,7 @@ void VPattern::Parse(const Document &parse)
     }
     if (VApplication::IsGUIMode())
     {
-        QTimer::singleShot(1000, Qt::VeryCoarseTimer, this, &VPattern::RefreshPieceGeometry);
+        QTimer::singleShot(V_SECONDS(1), Qt::VeryCoarseTimer, this, &VPattern::RefreshPieceGeometry);
     }
     else if (VApplication::VApp()->CommandLine()->IsTestModeEnabled())
     {

src/libs/vmisc/defglobal.h

@@ -73,4 +73,20 @@ void qAsConst(const T &&) Q_DECL_EQ_DELETE;
 #define NANOSECONDS(x) SUFFIX_APPEND(x, _ns) // NOLINT(cppcoreguidelines-macro-usage)
 #endif // __cplusplus >= 201402L
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 8, 0)
+#define V_HOURS(x) HOURS(x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MINUTES(x) MINUTES(x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_SECONDS(x) SECONDS(x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MSECONDS(x) MSECONDS(x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MICSECONDS(x) MICSECONDS(x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_NANOSECONDS(x) NANOSECONDS(x) // NOLINT(cppcoreguidelines-macro-usage)
+#else
+#define V_HOURS(x) (x * 3600000) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MINUTES(x) (x * 60000) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_SECONDS(x) (x * 1000) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MSECONDS(x) (x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_MICSECONDS(x) (x) // NOLINT(cppcoreguidelines-macro-usage)
+#define V_NANOSECONDS(x) (x) // NOLINT(cppcoreguidelines-macro-usage)
+#endif
+
 #endif // DEFGLOBAL_H

src/libs/vtools/tools/vtoolseamallowance.cpp

@@ -74,6 +74,13 @@
 #include <QUuid>
 #include <QtMath>
 
+#if __cplusplus >= 201402L
+using namespace std::chrono_literals;
+#else
+#include "../vmisc/bpstd/chrono.hpp"
+using namespace bpstd::literals::chrono_literals;
+#endif
+
 // Current version of seam allowance tag need for backward compatibility
 const quint8 VToolSeamAllowance::pieceVersion = 2;
 
@@ -1435,7 +1442,7 @@ void VToolSeamAllowance::RefreshGeometry(bool updateChildren)
 
     if (VAbstractApplication::VApp()->IsAppInGUIMode())
     {
-        QTimer::singleShot(100, Qt::CoarseTimer, this, [this, updateChildren]()
+        QTimer::singleShot(V_MSECONDS(100), Qt::CoarseTimer, this, [this, updateChildren]()
         {
             this->setFlag(QGraphicsItem::ItemSendsGeometryChanges, false);
             UpdateDetailLabel();

src/libs/vwidgets/vlineedit.cpp

@@ -34,7 +34,12 @@
 #include <QTimer>
 #include <QtDebug>
 
-#include "../vmisc/compatibility.h"
+#if __cplusplus >= 201402L
+using namespace std::chrono_literals;
+#else
+#include "../vmisc/bpstd/chrono.hpp"
+using namespace bpstd::literals::chrono_literals;
+#endif
 
 namespace
 {
@@ -172,7 +177,7 @@ void VCompleterLineEdit::ShowCompletion()
     if (text().isEmpty())
     {
         // completion list will be hidden now; we will show it again after a delay
-        QTimer::singleShot(100, this, &VCompleterLineEdit::CompletionPopup);
+        QTimer::singleShot(V_MSECONDS(100), this, &VCompleterLineEdit::CompletionPopup);
     }
 }