Added some warning messageboxes.

One for when user tries to double click and there are now applications specified.
Another for when user tries to check something and the file list is empty.

gui/mainwindow.cpp

@@ -206,6 +206,15 @@ void MainWindow::DoCheckFiles(QFileDialog::FileMode mode)
 
         mResults.Clear();
         mThread.ClearFiles();
+
+        if (fileNames.isEmpty())
+        {
+            QMessageBox msgBox;
+            msgBox.setText("No suitable files found to check!");
+            msgBox.exec();
+            return;
+        }
+
         mThread.SetFiles(RemoveUnacceptedFiles(fileNames));
         mSettings.setValue(tr("Check path"), dialog.directory().absolutePath());
         EnableCheckButtons(false);

gui/resultstree.cpp

@@ -23,6 +23,7 @@
 #include <QSignalMapper>
 #include <QProcess>
 #include <QDir>
+#include <QMessageBox>
 
 ResultsTree::ResultsTree(QSettings &settings, ApplicationList &list) :
         mSettings(settings),
@@ -81,7 +82,7 @@ void ResultsTree::AddErrorItem(const QString &file,
     bool hide = !mShowTypes[SeverityToShowType(severity)];
     //Create the base item for the error and ensure it has a proper
     //file item as a parent
-    QStandardItem *item = AddBacktraceFiles(EnsureFileItem(realfile),
+    QStandardItem *item = AddBacktraceFiles(EnsureFileItem(realfile, hide),
                                             realfile,
                                             lines[0].toInt(),
                                             severity,
@@ -283,7 +284,7 @@ void ResultsTree::RefreshTree()
 }
 
 
-QStandardItem *ResultsTree::EnsureFileItem(const QString &name)
+QStandardItem *ResultsTree::EnsureFileItem(const QString &name, bool hide)
 {
     QStandardItem *item = FindFileItem(name);
 
@@ -297,6 +298,8 @@ QStandardItem *ResultsTree::EnsureFileItem(const QString &name)
 
     mModel.appendRow(item);
 
+    setRowHidden(mModel.rowCount() - 1, QModelIndex(), hide);
+
     return item;
 }
 
@@ -371,6 +374,15 @@ void ResultsTree::contextMenuEvent(QContextMenuEvent * e)
 
 void ResultsTree::StartApplication(QStandardItem *target, int application)
 {
+    //If there are now application's specified, tell the user about it
+    if (mApplications.GetApplicationCount() == 0)
+    {
+        QMessageBox msgBox;
+        msgBox.setText("You can open this error by specifying applications in program's settings.");
+        msgBox.exec();
+        return;
+    }
+
     if (target && application >= 0 && application < mApplications.GetApplicationCount() && target->parent())
     {
         QVariantMap data = target->data().toMap();

gui/resultstree.h

@@ -247,9 +247,10 @@ protected:
     * @brief Ensures there's a item in the model for the specified file
     *
     * @param name Filename
+    * @param hide is the error (we want this file item for) hidden?
     * @return QStandardItem to be used as a parent for all errors for specified file
     */
-    QStandardItem *EnsureFileItem(const QString &name);
+    QStandardItem *EnsureFileItem(const QString &name, bool hide);
 
     /**
     * @brief Show a file item

gui/resultsview.cpp

@@ -30,6 +30,7 @@ ResultsView::ResultsView(QSettings &settings, ApplicationList &list)
     mProgress = new QProgressBar();
     layout->addWidget(mProgress);
     mProgress->setMinimum(0);
+    mProgress->setVisible(false);
 
     mTree = new ResultsTree(settings, list);
     layout->addWidget(mTree);
@@ -53,6 +54,14 @@ void ResultsView::Progress(int value, int max)
 {
     mProgress->setMaximum(max);
     mProgress->setValue(value);
+    if (value >= max)
+    {
+        mProgress->setVisible(false);
+    }
+    else
+    {
+        mProgress->setVisible(true);
+    }
 }
 
 void ResultsView::Error(const QString &file,

gui/threadresult.cpp

@@ -37,6 +37,7 @@ void ThreadResult::reportOut(const std::string &outmsg)
 
 void ThreadResult::FileChecked(const QString &file)
 {
+    QMutexLocker locker(&mutex);
     Q_UNUSED(file); //For later use maybe?
     mProgress++;
     emit Progress(mProgress, mMaxProgress);