Add visual feedback to FSWidget

* show busy cursor when gathering data
* emit statusbarMessage() when gathering data

The latter shows a summary with the time it has taken to gather data,
the SQL query count and the number of files analyzed.

1 files changed, 13 insertions, 1 deletions

diff --git a/fswidget.cpp b/fswidget.cpp
index f282a6c..53ef56e 100644
--- a/fswidget.cpp
+++ b/fswidget.cpp
@@ -12,6 +12,7 @@
 #include <QDirIterator>
 #include <QJsonObject>
 #include <QSqlDatabase>
+#include <QElapsedTimer>
 #include <QSettings>
 #include <QApplication>
 
@@ -162,6 +163,12 @@ void FSWidget::removeItem(QComboBox *cb){
 
 void FSWidget::gatherData(const QString &curDir){
     //setup view
+    qApp->setOverrideCursor(Qt::BusyCursor);
+    mQueryCount = 0;
+    int fileCount = 0;
+    QElapsedTimer timer;
+    timer.start();
+    emit message(tr("Gathering data..."));
     mFileView->setSortingEnabled(false);
     mFileView->setRootIsDecorated(false);
     mModel->clear();
@@ -191,6 +198,7 @@ void FSWidget::gatherData(const QString &curDir){
     mFileView->setUpdatesEnabled(false);
     while(it.hasNext()){
         QFileInfo fi = it.next();
+        ++fileCount;
         QMimeType mimeType = mimedb.mimeTypeForFile(fi);
         QString mimeName = mimeType.name();
         qint64 seconds = 0;
@@ -262,6 +270,9 @@ void FSWidget::gatherData(const QString &curDir){
     }
     mFileView->setUpdatesEnabled(true);
     mFileView->setSortingEnabled(true);
+    qApp->restoreOverrideCursor();
+    QString msg = QString(tr("Analyzed %1 files in %2 ms using %3 queries").arg(QString::number(fileCount)).arg(QString::number(timer.elapsed())).arg(QString::number(mQueryCount)));
+    emit message(msg);
 }
 
 void FSWidget::advanceDir(int by){
@@ -276,12 +287,13 @@ void FSWidget::advanceDir(int by){
     mDirCB->setCurrentIndex(nextIdx);
 }
 
-int FSWidget::queryCount(QSqlQuery &q, const QString &arg) const{
+int FSWidget::queryCount(QSqlQuery &q, const QString &arg){
     int retval = -1;
     q.bindValue(":arg", arg);
     q.exec();
     while(q.next()){
         retval = q.value(0).toInt();
     }
+    ++mQueryCount;
     return retval;
 }