Much better error reporting

src/AnalyzeView/GeoTagController.cc

@@ -70,8 +70,7 @@ void GeoTagController::startTagging(void)
 
     QDir imageDirectory = QDir(_worker.imageDirectory());
     if(!imageDirectory.exists()) {
-        _errorMessage = tr("Cannot find the image directory");
-        emit errorMessageChanged(_errorMessage);
+        _setErrorMessage(tr("Cannot find the image directory"));
         return;
     }
     if(_worker.saveDirectory() == "") {
@@ -83,23 +82,20 @@ void GeoTagController::startTagging(void)
             msgBox.setWindowModality(Qt::ApplicationModal);
             msgBox.addButton(tr("Replace"), QMessageBox::ActionRole);
             if (msgBox.exec() == QMessageBox::Cancel) {
-                _errorMessage = tr("Images have already been tagged");
-                emit errorMessageChanged(_errorMessage);
+                _setErrorMessage(tr("Images have already been tagged"));
                 return;
             }
             QDir oldTaggedFolder = QDir(_worker.imageDirectory() + "/TAGGED");
             oldTaggedFolder.removeRecursively();
             if(!imageDirectory.mkdir(_worker.imageDirectory() + "/TAGGED")) {
-                _errorMessage = tr("Couldn't replace the previously tagged images");
-                emit errorMessageChanged(_errorMessage);
+                _setErrorMessage(tr("Couldn't replace the previously tagged images"));
                 return;
             }
         }
     } else {
         QDir saveDirectory = QDir(_worker.saveDirectory());
         if(!saveDirectory.exists()) {
-            _errorMessage = tr("Cannot find the save directory");
-            emit errorMessageChanged(_errorMessage);
+            _setErrorMessage(tr("Cannot find the save directory"));
             return;
         }
         saveDirectory.setFilter(QDir::Files | QDir::Readable | QDir::NoSymLinks | QDir::Writable);
@@ -115,15 +111,13 @@ void GeoTagController::startTagging(void)
             msgBox.setWindowModality(Qt::ApplicationModal);
             msgBox.addButton(tr("Replace"), QMessageBox::ActionRole);
             if (msgBox.exec() == QMessageBox::Cancel) {
-                _errorMessage = tr("Save folder not empty");
-                emit errorMessageChanged(_errorMessage);
+                _setErrorMessage(tr("Save folder not empty"));
                 return;
             }
             foreach(QString dirFile, imageList)
             {
                 if(!saveDirectory.remove(dirFile)) {
-                    _errorMessage = tr("Couldn't replace the existing images");
-                    emit errorMessageChanged(_errorMessage);
+                    _setErrorMessage(tr("Couldn't replace the existing images"));
                     return;
                 }
             }
@@ -144,6 +138,13 @@ void GeoTagController::_workerError(QString errorMessage)
     emit errorMessageChanged(errorMessage);
 }
 
+
+void GeoTagController::_setErrorMessage(const QString& error)
+{
+    _errorMessage = error;
+    emit errorMessageChanged(error);
+}
+
 GeoTagWorker::GeoTagWorker(void)
     : _cancel(false)
     , _logFile("")
@@ -210,9 +211,10 @@ void GeoTagWorker::run(void)
     // Instantiate appropriate parser
     _triggerList.clear();
     bool parseComplete = false;
-    if(isULog) {
+    QString errorString;
+    if (isULog) {
         ULogParser parser;
-        parseComplete = parser.getTagsFromLog(log, _triggerList);
+        parseComplete = parser.getTagsFromLog(log, _triggerList, errorString);
 
     } else {
         PX4LogParser parser;
@@ -227,7 +229,8 @@ void GeoTagWorker::run(void)
             return;
         } else {
             qCDebug(GeotaggingLog) << "Log parsing failed";
-            emit error(tr("Log parsing failed - tagging cancelled"));
+            errorString = tr("%1 - tagging cancelled").arg(errorString.isEmpty() ? tr("Log parsing failed") : errorString);
+            emit error(errorString);
             return;
         }
     }

src/AnalyzeView/GeoTagController.h

@@ -117,8 +117,9 @@ signals:
     void errorMessageChanged            (QString errorMessage);
 
 private slots:
-    void _workerProgressChanged(double progress);
-    void _workerError(QString errorMsg);
+    void _workerProgressChanged (double progress);
+    void _workerError           (QString errorMsg);
+    void _setErrorMessage       (const QString& error);
 
 private:
     QString             _errorMessage;

src/AnalyzeView/GeoTagPage.qml

@@ -124,8 +124,9 @@ AnalyzePage {
             }
 
             QGCButton {
-                text: geoController.inProgress ? qsTr("Cancel Tagging") : qsTr("Start Tagging")
-                width:      ScreenTools.defaultFontPixelWidth * 30
+                text:   geoController.inProgress ? qsTr("Cancel Tagging") : qsTr("Start Tagging")
+                width:  ScreenTools.defaultFontPixelWidth * 30
+
                 onClicked: {
                     if (geoController.inProgress) {
                         geoController.cancelTagging()

src/AnalyzeView/ULogParser.cc

@@ -86,11 +86,13 @@ bool ULogParser::parseFieldFormat(QString& fields)
     return false;
 }
 
-bool ULogParser::getTagsFromLog(QByteArray& log, QList<GeoTagWorker::cameraFeedbackPacket>& cameraFeedback)
+bool ULogParser::getTagsFromLog(QByteArray& log, QList<GeoTagWorker::cameraFeedbackPacket>& cameraFeedback, QString& errorMessage)
 {
+    errorMessage.clear();
+
     //verify it's an ULog file
     if(!log.contains(_ULogMagic)) {
-        qWarning() << "Could not detect ULog file header magic";
+        errorMessage = tr("Could not detect ULog file header magic");
         return false;
     }
 
@@ -175,7 +177,7 @@ bool ULogParser::getTagsFromLog(QByteArray& log, QList<GeoTagWorker::cameraFeedb
     }
 
     if (cameraFeedback.count() == 0) {
-        qWarning() << "Could not detect camera_capture packets in ULog";
+        errorMessage = tr("Could not detect camera_capture packets in ULog");
         return false;
     }
 

src/AnalyzeView/ULogParser.h

@@ -3,6 +3,7 @@
 
 #include <QGeoCoordinate>
 #include <QDebug>
+#include <QCoreApplication>
 
 #include "GeoTagController.h"
 
@@ -10,10 +11,14 @@
 
 class ULogParser
 {
+    Q_DECLARE_TR_FUNCTIONS(ULogParser)
+
 public:
     ULogParser();
     ~ULogParser();
-    bool getTagsFromLog(QByteArray& log, QList<GeoTagWorker::cameraFeedbackPacket>& cameraFeedback);
+
+    /// @return true: failed, errorMessage set
+    bool getTagsFromLog(QByteArray& log, QList<GeoTagWorker::cameraFeedbackPacket>& cameraFeedback, QString& errorMessage);
 
 private: