Fix locking file after double save as.

(grafted from 4828cd4acfa596166fe4c8a32f505045b86cab9c)

--HG--
branch : develop

ChangeLog.txt

@@ -53,6 +53,7 @@
 - Regression in method DialogTool::GetNodeName.
 - Fix visualization for tool Point from arc and tangent.
 - Changing settings for move and rotate tools through property browser does not take in count previous change for label point and Show label option.
+- Fix locking file after double save as.
 
 # Version 0.6.1 October 23, 2018
 - [#885] Regression. Broken support for multi size measurements.

src/app/tape/tmainwindow.cpp

@@ -39,7 +39,6 @@
 #include "../ifc/xml/vvitconverter.h"
 #include "../ifc/xml/vvstconverter.h"
 #include "../ifc/xml/vpatternconverter.h"
-#include "../vmisc/vlockguard.h"
 #include "../vmisc/vsysexits.h"
 #include "../vmisc/qxtcsvmodel.h"
 #include "../vmisc/dialogs/dialogexporttocsv.h"
@@ -843,7 +842,7 @@ bool TMainWindow::FileSaveAs()
         fileName += QChar('.') + suffix;
     }
 
-    if (QFileInfo::exists(fileName))
+    if (QFileInfo::exists(fileName) && curFile != fileName)
     {
         // Temporary try to lock the file before saving
         VLockGuard<char> tmp(fileName);
@@ -884,6 +883,10 @@ bool TMainWindow::FileSaveAs()
     UpdatePadlock(false);
     UpdateWindowTitle();
 
+    if (curFile == fileName && not lock.isNull())
+    {
+        lock->Unlock();
+    }
     VlpCreateLock(lock, fileName);
     if (not lock->IsLocked())
     {

src/app/tape/tmainwindow.h

@@ -141,7 +141,7 @@ private:
     QComboBox       *gradationSizes;
     QComboBox       *comboBoxUnits;
     int              formulaBaseHeight;
-    std::shared_ptr<VLockGuard<char>> lock;
+    QSharedPointer<VLockGuard<char>> lock;
     QSharedPointer<VTableSearch> search;
     QLabel *labelGradationHeights;
     QLabel *labelGradationSizes;

src/app/valentina/core/vapplication.cpp

@@ -518,7 +518,7 @@ void VApplication::BeginLogging()
     {
         if (lockLog->GetProtected()->open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text))
         {
-            out.reset(new QTextStream(lockLog->GetProtected().get()));
+            out.reset(new QTextStream(lockLog->GetProtected().data()));
             qInstallMessageHandler(noisyFailureMsgHandler);
             qCDebug(vApp, "Log file %s was locked.", qUtf8Printable(LogPath()));
         }

src/app/valentina/core/vapplication.h

@@ -90,7 +90,7 @@ private:
     VTranslateVars     *trVars;
     QTimer             *autoSaveTimer;
 
-    std::shared_ptr<VLockGuard<QFile>> lockLog;
+    QSharedPointer<VLockGuard<QFile>> lockLog;
     std::shared_ptr<QTextStream> out;
 
     QString            LogDirPath()const;

src/app/valentina/mainwindow.cpp

@@ -2830,7 +2830,7 @@ bool MainWindow::on_actionSaveAs_triggered()
         fileName += QLatin1String(".val");
     }
 
-    if (f.exists())
+    if (f.exists() && qApp->GetPatternPath() != fileName)
     {
         // Temporary try to lock the file before saving
         // Also help to rewite current read-only pattern
@@ -2880,6 +2880,10 @@ bool MainWindow::on_actionSaveAs_triggered()
     patternReadOnly = false;
 
     qCDebug(vMainWindow, "Locking file");
+    if (qApp->GetPatternPath() == fileName && not lock.isNull())
+    {
+        lock->Unlock();
+    }
     VlpCreateLock(lock, fileName);
 
     if (lock->IsLocked())

src/app/valentina/mainwindow.h

@@ -271,7 +271,7 @@ private:
     VToolOptionsPropertyBrowser *toolOptions;
     VWidgetGroups *groupsWidget;
     VWidgetDetails *detailsWidget;
-    std::shared_ptr<VLockGuard<char>> lock;
+    QSharedPointer<VLockGuard<char>> lock;
 
     QList<QToolButton*> toolButtonPointerList;
 

src/libs/vmisc/vlockguard.h

@@ -32,12 +32,12 @@
 
 #include <QString>
 #include <stdint.h>
-#include <memory>
 
 #include "../vmisc/diagnostic.h"
 
 #include <QFileInfo>
 #include <QLockFile>
+#include <QSharedPointer>
 #if defined(Q_OS_WIN)
 #include <windows.h>
 #endif
@@ -61,18 +61,19 @@ public:
     template <typename Alloc, typename Delete>
     VLockGuard(const QString& lockName, Alloc a, Delete d, int stale = 0, int timeout=0);
 
-    const std::shared_ptr<Guarded> &GetProtected() const;
+    const QSharedPointer<Guarded> &GetProtected() const;
     int             GetLockError() const;
     bool            IsLocked() const;
+    void            Unlock();
     QString         GetLockFile() const;
 
 private:
     Q_DISABLE_COPY(VLockGuard<Guarded>)
 
-    std::shared_ptr<Guarded> holder;
+    QSharedPointer<Guarded>   holder;
     int                       lockError;
     QString                   lockFile;
-    std::shared_ptr<QLockFile> lock;
+    QSharedPointer<QLockFile> lock;
 
     // cppcheck-suppress functionStatic
     bool TryLock(const QString &lockName, int stale, int timeout);
@@ -115,23 +116,33 @@ VLockGuard<Guarded>::VLockGuard(const QString& lockName, Alloc a, Delete d, int
 
 //---------------------------------------------------------------------------------------------------------------------
 template <typename Guarded>
-const std::shared_ptr<Guarded> &VLockGuard<Guarded>::GetProtected() const
+inline const QSharedPointer<Guarded> &VLockGuard<Guarded>::GetProtected() const
 {
     return holder;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 template <typename Guarded>
-int VLockGuard<Guarded>::GetLockError() const
+inline int VLockGuard<Guarded>::GetLockError() const
 {
     return lockError;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 template <typename Guarded>
-bool VLockGuard<Guarded>::IsLocked() const
+inline bool VLockGuard<Guarded>::IsLocked() const
 {
-    return holder != nullptr;
+    return not holder.isNull();
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+template<typename Guarded>
+inline void VLockGuard<Guarded>::Unlock()
+{
+    if (IsLocked())
+    {
+        lock->unlock();
+    }
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -187,20 +198,20 @@ QT_WARNING_PUSH
 QT_WARNING_DISABLE_INTEL(1418)
 
 template <typename Guarded>
-void VlpCreateLock(std::shared_ptr<VLockGuard<Guarded>>& r, const QString& lockName, int stale = 0, int timeout = 0)
+void VlpCreateLock(QSharedPointer<VLockGuard<Guarded>>& r, const QString& lockName, int stale = 0, int timeout = 0)
 {
     r.reset(new VLockGuard<Guarded>(lockName, stale, timeout));
 }
 
 template <typename Guarded, typename Alloc>
-void VlpCreateLock(std::shared_ptr<VLockGuard<Guarded>>& r, const QString& lockName, Alloc a, int stale = 0,
+void VlpCreateLock(QSharedPointer<VLockGuard<Guarded>>& r, const QString& lockName, Alloc a, int stale = 0,
                    int timeout = 0)
 {
     r.reset(new VLockGuard<Guarded>(lockName, a, stale, timeout));
 }
 
 template <typename Guarded, typename Alloc, typename Del>
-void VlpCreateLock(std::shared_ptr<VLockGuard<Guarded>>& r, const QString& lockName, Alloc a, Del d, int stale = 0,
+void VlpCreateLock(QSharedPointer<VLockGuard<Guarded>>& r, const QString& lockName, Alloc a, Del d, int stale = 0,
                    int timeout = 0)
 {
     r.reset(new VLockGuard<Guarded>(lockName, a, d, stale, timeout));

src/test/ValentinaTest/tst_vlockguard.cpp

@@ -42,7 +42,7 @@ TST_VLockGuard::TST_VLockGuard(QObject *parent)
 void TST_VLockGuard::TryLock() const
 {
     QString fileName(QCoreApplication::applicationDirPath() + "/lockFile.txt");
-    std::shared_ptr<VLockGuard<char>> lock;
+    QSharedPointer<VLockGuard<char>> lock;
     VlpCreateLock(lock, fileName);
 
     fileName = lock->GetLockFile();