Enable translation of error messages from C++

src/convertworker.cpp

@@ -78,14 +78,14 @@ void ConvertWorker::convertPdf(QNetworkRequest request, QString filename, QTempo
     {
         qDebug() << "pdftoppm died";
         tempfile->deleteLater();
-        emit failed();
+        emit failed(tr("Conversion error"));
         return;
     }
     if(!ppm2pwg->waitForStarted())
     {
         qDebug() << "ppm2pwg died";
         tempfile->deleteLater();
-        emit failed();
+        emit failed(tr("Conversion error"));
         return;
     }
     qDebug() << "All started";
@@ -108,7 +108,7 @@ void ConvertWorker::convertImage(QNetworkRequest request, QString filename, QTem
     if(!inImage.load(filename))
     {
         qDebug() << "failed to load";
-        emit failed();
+        emit failed(tr("Failed to load image"));
         return;
     }
 
@@ -153,7 +153,7 @@ void ConvertWorker::convertImage(QNetworkRequest request, QString filename, QTem
     {
         qDebug() << "ppm2pwg died";
         tempfile->deleteLater();
-        emit failed();
+        emit failed(tr("Conversion error"));
         return;
     }
     qDebug() << "All started";

src/convertworker.h

@@ -17,7 +17,7 @@ public slots:
 
 signals:
     void done(QNetworkRequest request, QTemporaryFile* data);
-    void failed();
+    void failed(QString message);
 };
 
 #endif // CONVERTWORKER_H

src/ippprinter.cpp

@@ -97,7 +97,6 @@ void IppPrinter::refresh() {
     QNetworkRequest request;
 
     request.setUrl(httpUrl());
-//    request.setRawHeader("User-Agent", "MyOwnBrowser 1.0");
     request.setHeader(QNetworkRequest::ContentTypeHeader, "application/ipp");
     request.setHeader(QNetworkRequest::UserAgentHeader, "SeaPrint "SEAPRINT_VERSION);
 
@@ -220,10 +219,10 @@ void IppPrinter::convertDone(QNetworkRequest request, QTemporaryFile* data)
 
 }
 
-void IppPrinter::convertFailed()
+void IppPrinter::convertFailed(QString message)
 {
     _jobAttrs = QJsonObject();
-    _jobAttrs.insert("job-state-message", QJsonObject {{"tag", IppMsg::TextWithoutLanguage}, {"value", "Internal error"}});
+    _jobAttrs.insert("job-state-message", QJsonObject {{"tag", IppMsg::TextWithoutLanguage}, {"value", message}});
     emit jobAttrsChanged();
     emit jobFinished(false);
 }
@@ -235,7 +234,7 @@ void IppPrinter::print(QJsonObject attrs, QString filename){
     bool file_ok = file.open(QIODevice::ReadOnly);
     if(!file_ok)
     {
-        emit jobFinished(false);
+        emit convertFailed(tr("Failed to open file"));
         return;
     }
 

src/ippprinter.h

@@ -74,7 +74,7 @@ public slots:
     void ignoreKnownSslErrors(QNetworkReply *reply, const QList<QSslError> &errors);
 
     void convertDone(QNetworkRequest request, QTemporaryFile* data);
-    void convertFailed();
+    void convertFailed(QString message);
 
 private:
     QUrl _url;

translations/harbour-seaprint-de.ts

@@ -118,6 +118,17 @@
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>ConvertWorker</name>
+    <message>
+        <source>Conversion error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Failed to load image</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>CoverPage</name>
     <message>
@@ -172,6 +183,13 @@
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>IppPrinter</name>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>JobsPage</name>
     <message>

translations/harbour-seaprint-es.ts

@@ -118,6 +118,17 @@
         <translation type="unfinished">Impresión fallida: </translation>
     </message>
 </context>
+<context>
+    <name>ConvertWorker</name>
+    <message>
+        <source>Conversion error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Failed to load image</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>CoverPage</name>
     <message>
@@ -172,6 +183,13 @@
         <translation type="unfinished">Elegir archivo</translation>
     </message>
 </context>
+<context>
+    <name>IppPrinter</name>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>JobsPage</name>
     <message>

translations/harbour-seaprint-fr.ts

@@ -118,6 +118,17 @@
         <translation type="unfinished">Échec de l&apos;impression :</translation>
     </message>
 </context>
+<context>
+    <name>ConvertWorker</name>
+    <message>
+        <source>Conversion error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Failed to load image</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>CoverPage</name>
     <message>
@@ -172,6 +183,13 @@
         <translation type="unfinished">Choisir un fichier</translation>
     </message>
 </context>
+<context>
+    <name>IppPrinter</name>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>JobsPage</name>
     <message>

translations/harbour-seaprint-zh_CN.ts

@@ -118,6 +118,17 @@
         <translation type="unfinished">打印失败:</translation>
     </message>
 </context>
+<context>
+    <name>ConvertWorker</name>
+    <message>
+        <source>Conversion error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Failed to load image</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>CoverPage</name>
     <message>
@@ -172,6 +183,13 @@
         <translation type="unfinished">选择文件</translation>
     </message>
 </context>
+<context>
+    <name>IppPrinter</name>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>JobsPage</name>
     <message>

translations/harbour-seaprint.ts

@@ -118,6 +118,17 @@
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>ConvertWorker</name>
+    <message>
+        <source>Conversion error</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Failed to load image</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>CoverPage</name>
     <message>
@@ -172,6 +183,13 @@
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>IppPrinter</name>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>JobsPage</name>
     <message>