[PATCH] Use QFile::{encode,decode}Name for file names

[Thiago Macieira]

And make them use UTF-8 on Windows instead of the local 8 bit encoding.
This will also get us the proper NFD encoding on OS X.

Signed-off-by: Thiago Macieira <thiago at macieira.org>
---
 qt-gui.cpp                      | 16 ++++++++++++++++
 qt-ui/divelistview.cpp          |  2 +-
 qt-ui/mainwindow.cpp            |  4 ++--
 qt-ui/subsurfacewebservices.cpp |  4 ++--
 4 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/qt-gui.cpp b/qt-gui.cpp
index 84e79a9..fe2068a 100644
--- a/qt-gui.cpp
+++ b/qt-gui.cpp
@@ -66,6 +66,18 @@ const char *getSetting(QSettings &s, QString name)
 	return NULL;
 }
 
+#ifdef Q_OS_WIN
+static QByteArray encodeUtf8(const QString &fname)
+{
+	return fname.toUtf8();
+}
+
+static QString decodeUtf8(const QByteArray &fname)
+{
+	return QString::fromUtf8(fname);
+}
+#endif
+
 void init_ui(int *argcp, char ***argvp)
 {
 	QVariant v;
@@ -82,6 +94,10 @@ void init_ui(int *argcp, char ***argvp)
 	// 106 is "UTF-8", this is faster than lookup by name
 	// [http://www.iana.org/assignments/character-sets/character-sets.xml]
 	QTextCodec::setCodecForCStrings(QTextCodec::codecForMib(106));
+#  ifdef Q_OS_WIN
+	QFile::setDecodingFunction(decodeUtf8);
+	QFile::setEncodingFunction(encodeUtf8);
+#  endif
 #endif
 	QCoreApplication::setOrganizationName("Subsurface");
 	QCoreApplication::setOrganizationDomain("subsurface.hohndel.org");
diff --git a/qt-ui/divelistview.cpp b/qt-ui/divelistview.cpp
index 2090f61..11d7124 100644
--- a/qt-ui/divelistview.cpp
+++ b/qt-ui/divelistview.cpp
@@ -765,7 +765,7 @@ void DiveListView::saveSelectedDivesAs()
 	settings.setValue("LastDir",fileInfo.dir().path());
 	settings.endGroup();
 
-	QByteArray bt = fileName.toLocal8Bit();
+	QByteArray bt = QFile::encodeName(fileName);
 	save_dives_logic(bt.data(), TRUE);
 }
 
diff --git a/qt-ui/mainwindow.cpp b/qt-ui/mainwindow.cpp
index 276f24b..5f410ff 100644
--- a/qt-ui/mainwindow.cpp
+++ b/qt-ui/mainwindow.cpp
@@ -825,7 +825,7 @@ void MainWindow::importFiles(const QStringList fileNames)
 	QByteArray fileNamePtr;
 	char *error = NULL;
 	for (int i = 0; i < fileNames.size(); ++i) {
-		fileNamePtr = fileNames.at(i).toUtf8();
+		fileNamePtr = QFile::encodeName(fileNames.at(i));
 		parse_file(fileNamePtr.data(), &error);
 		if (error != NULL) {
 			showError(error);
@@ -846,7 +846,7 @@ void MainWindow::loadFiles(const QStringList fileNames)
 	QByteArray fileNamePtr;
 
 	for (int i = 0; i < fileNames.size(); ++i) {
-		fileNamePtr = fileNames.at(i).toUtf8();
+		fileNamePtr = QFile::encodeName(fileNames.at(i));
 		parse_file(fileNamePtr.data(), &error);
 		set_filename(fileNamePtr.data(), TRUE);
 		setTitle(MWTF_FILENAME);
diff --git a/qt-ui/subsurfacewebservices.cpp b/qt-ui/subsurfacewebservices.cpp
index 266332f..1f773f1 100644
--- a/qt-ui/subsurfacewebservices.cpp
+++ b/qt-ui/subsurfacewebservices.cpp
@@ -759,7 +759,7 @@ void DivelogsDeWebServices::downloadFinished()
 	if (!zip)
 		::close(duppedfd);
 #else
-	struct zip *zip = zip_open(zipFile.fileName().toUtf8().data(), 0, &errorcode);
+	struct zip *zip = zip_open(QFile::encodeName(zipFile.fileName()), 0, &errorcode);
 #endif
 	if (!zip) {
 		char buf[512];
@@ -855,7 +855,7 @@ void DivelogsDeWebServices::buttonClicked(QAbstractButton* button)
 		}
 		/* parse file and import dives */
 		char *error = NULL;
-		parse_file(zipFile.fileName().toUtf8().data(), &error);
+		parse_file(QFile::encodeName(zipFile.fileName()), &error);
 		if (error != NULL) {
 			mainWindow()->showError(error);
 			free(error);
-- 
1.7.11.7