Fixed i18n in QImageReader/QImageWriter.

Change-Id: I366831e23e4d29999696872d752b9487d1f22d44
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/gui/image/qimagereader.cpp

@@ -567,7 +567,7 @@ bool QImageReaderPrivate::initHandler()
     // check some preconditions
     if (!device || (!deleteDevice && !device->isOpen() && !device->open(QIODevice::ReadOnly))) {
         imageReaderError = QImageReader::DeviceError;
-        errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageReader, "Invalid device"));
+        errorString = QImageReader::tr("Invalid device");
         return false;
     }
 
@@ -594,7 +594,7 @@ bool QImageReaderPrivate::initHandler()
 
         if (!device->isOpen()) {
             imageReaderError = QImageReader::FileNotFoundError;
-            errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageReader, "File not found"));
+            errorString = QImageReader::tr("File not found");
             file->setFileName(fileName); // restore the old file name
             return false;
         }
@@ -603,7 +603,7 @@ bool QImageReaderPrivate::initHandler()
     // assign a handler
     if (!handler && (handler = createReadHandlerHelper(device, format, autoDetectImageFormat, ignoresFormatAndExtension)) == 0) {
         imageReaderError = QImageReader::UnsupportedFormatError;
-        errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageReader, "Unsupported image format"));
+        errorString = QImageReader::tr("Unsupported image format");
         return false;
     }
     return true;
@@ -1190,7 +1190,7 @@ bool QImageReader::read(QImage *image)
     // read the image
     if (!d->handler->read(image)) {
         d->imageReaderError = InvalidDataError;
-        d->errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageReader, "Unable to read image data"));
+        d->errorString = QImageReader::tr("Unable to read image data");
         return false;
     }
 
@@ -1382,7 +1382,7 @@ QImageReader::ImageReaderError QImageReader::error() const
 QString QImageReader::errorString() const
 {
     if (d->errorString.isEmpty())
-        return QLatin1String(QT_TRANSLATE_NOOP(QImageReader, "Unknown error"));
+        return QImageReader::tr("Unknown error");
     return d->errorString;
 }
 

src/gui/image/qimagereader.h

@@ -43,6 +43,7 @@
 #define QIMAGEREADER_H
 
 #include <QtCore/qbytearray.h>
+#include <QtCore/qcoreapplication.h>
 #include <QtGui/qimage.h>
 #include <QtGui/qimageiohandler.h>
 
@@ -58,6 +59,7 @@ class QStringList;
 class QImageReaderPrivate;
 class Q_GUI_EXPORT QImageReader
 {
+    Q_DECLARE_TR_FUNCTIONS(QImageReader)
 public:
     enum ImageReaderError {
         UnknownError,

src/gui/image/qimagewriter.cpp

@@ -279,7 +279,7 @@ QImageWriterPrivate::QImageWriterPrivate(QImageWriter *qq)
     compression = 0;
     gamma = 0.0;
     imageWriterError = QImageWriter::UnknownError;
-    errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageWriter, "Unknown error"));
+    errorString = QImageWriter::tr("Unknown error");
 
     q = qq;
 }
@@ -288,19 +288,19 @@ bool QImageWriterPrivate::canWriteHelper()
 {
     if (!device) {
         imageWriterError = QImageWriter::DeviceError;
-        errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageWriter, "Device is not set"));
+        errorString = QImageWriter::tr("Device is not set");
         return false;
     }
     if (!device->isOpen())
         device->open(QIODevice::WriteOnly);
     if (!device->isWritable()) {
         imageWriterError = QImageWriter::DeviceError;
-        errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageWriter, "Device not writable"));
+        errorString = QImageWriter::tr("Device not writable");
         return false;
     }
     if (!handler && (handler = createWriteHandlerHelper(device, format)) == 0) {
         imageWriterError = QImageWriter::UnsupportedFormatError;
-        errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageWriter, "Unsupported image format"));
+        errorString = QImageWriter::tr("Unsupported image format");
         return false;
     }
     return true;
@@ -667,7 +667,7 @@ bool QImageWriter::supportsOption(QImageIOHandler::ImageOption option) const
 {
     if (!d->handler && (d->handler = createWriteHandlerHelper(d->device, d->format)) == 0) {
         d->imageWriterError = QImageWriter::UnsupportedFormatError;
-        d->errorString = QLatin1String(QT_TRANSLATE_NOOP(QImageWriter, "Unsupported image format"));
+        d->errorString = QImageWriter::tr("Unsupported image format");
         return false;
     }
 

src/gui/image/qimagewriter.h

@@ -43,6 +43,7 @@
 #define QIMAGEWRITER_H
 
 #include <QtCore/qbytearray.h>
+#include <QtCore/qcoreapplication.h>
 #include <QtCore/qlist.h>
 #include <QtGui/qimageiohandler.h>
 
@@ -55,6 +56,7 @@ class QImage;
 class QImageWriterPrivate;
 class Q_GUI_EXPORT QImageWriter
 {
+    Q_DECLARE_TR_FUNCTIONS(QImageWriter)
 public:
     enum ImageWriterError {
         UnknownError,