i18n support and German translation

Translation can be done with .ts-files in src/i18n/de.ts. The resulting .qm-files are stored as resources in the program binary.

build.sh has a new option --update-translations that causes the .ts files to be updated

6 files changed, 122 insertions, 7 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0bc9e02..9601a66 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,6 +15,7 @@ file(GLOB_RECURSE VMCHOOSER_SOURCES src/*.cpp)
 file(GLOB_RECURSE VMCHOOSER_MOC_HEADERS src/*.h)
 file(GLOB_RECURSE VMCHOOSER_UIS src/ui/*.ui)
 file(GLOB_RECURSE VMCHOOSER_RESOURCES src/*.qrc)
+file(GLOB_RECURSE VMCHOOSER_TSS src/i18n/*.ts)
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
@@ -48,7 +49,6 @@ endif(LIBXML2_FOUND)
 #
 # Qt4
 #
-# TODO: Qt4.3 should do
 find_package(Qt4 4.5.0 REQUIRED)
 if(QT4_FOUND)
   message(STATUS "Qt4 found")
@@ -62,6 +62,29 @@ set(QT_USE_QTSVG TRUE)
 
 include(${QT_USE_FILE})
 
+option(UPDATE_TRANSLATIONS "Update .ts files (WARNING: make clean will delete the .ts files!)")
+if(VMCHOOSER_TSS)
+  if (UPDATE_TRANSLATIONS)
+    set (FILES_TO_TRANSLATE ${FILES_TO_TRANSLATE} ${VMCHOOSER_SOURCES} ${VMCHOOSER_UIS})
+    QT4_CREATE_TRANSLATION(VMCHOOSER_QMS ${FILES_TO_TRANSLATE} ${VMCHOOSER_TSS} OPTIONS -noobsolete)
+    message(STATUS ".tr files have been updated")
+  else (UPDATE_TRANSLATIONS)
+    QT4_ADD_TRANSLATION(VMCHOOSER_QMS ${VMCHOOSER_TSS})
+  endif (UPDATE_TRANSLATIONS)
+
+  # write a resource file for qm files
+  set(resource_file_content "<RCC>\n    <qresource prefix=\"/\">\n")
+  foreach(file ${VMCHOOSER_QMS})
+    get_filename_component(filename ${file} NAME)
+    set(resource_file_content "${resource_file_content}        <file>${filename}</file>\n")
+  endforeach(file)
+  set(resource_file_content "${resource_file_content}    </qresource>\n</RCC>\n")
+  file(WRITE "${CMAKE_BINARY_DIR}/translation.qrc" "${resource_file_content}")
+  set(VMCHOOSER_RESOURCES ${VMCHOOSER_RESOURCES} "${CMAKE_BINARY_DIR}/translation.qrc")
+
+  #add_custom_target(translations_target DEPENDS ${VMCHOOSER_QMS})
+endif(VMCHOOSER_TSS)
+
 QT4_ADD_RESOURCES(VMCHOOSER_RC_SOURCES ${VMCHOOSER_RESOURCES})
 QT4_WRAP_UI(VMCHOOSER_UI_HEADERS ${VMCHOOSER_UIS})
 QT4_WRAP_CPP(VMCHOOSER_MOC_SOURCES ${VMCHOOSER_MOC_HEADERS})
@@ -77,6 +100,7 @@ add_executable(vmchooser
   ${VMCHOOSER_MOC_SOURCES}
   ${VMCHOOSER_UI_HEADERS}
   ${VMCHOOSER_RC_SOURCES}
+  ${VMCHOOSER_QMS}
 )
 
 target_link_libraries(vmchooser
diff --git a/build.sh b/build.sh
index 69041c0..7a515e4 100755
--- a/build.sh
+++ b/build.sh
@@ -8,6 +8,20 @@ BUILDDIR="build"
 
 DIR=$(pwd)
 
+for OPTION in "$@"
+do
+  if [[ "$OPTION" == "--clean" ]]
+  then
+    rm -r "$BUILDDIR"
+  elif [[ "$OPTION" == "--update-translations" ]]
+  then
+    CMAKE_ARGS="$CMAKE_ARGS -DUPDATE_TRANSLATIONS:BOOL=ON"
+  else
+    echo "usage: $SCRIPTNAME [--clean] [--update-translations]" >&2
+    exit 1
+  fi
+done
+
 if [[ ! -f "$DIR"/"$SRCDIR"/CMakeLists.txt ]]
 then
   echo "$SRCDIR/CMakeLists.txt not found" >&2
@@ -26,6 +40,6 @@ fi
 mkdir -p "$BUILDDIR"
 cd "$BUILDDIR"
 
-cmake "$DIR"/"$SRCDIR"/ && make clean && make -j $NCORES
+cmake $CMAKE_ARGS "$DIR"/"$SRCDIR"/ && make -j $NCORES
 
 cd "$DIR"
diff --git a/src/dialog.cpp b/src/dialog.cpp
index 6a931ca..7ebfbcc 100644
--- a/src/dialog.cpp
+++ b/src/dialog.cpp
@@ -16,7 +16,7 @@ Dialog::Dialog(QWidget *parent) :
     if (ifaceDBus_->isValid()) {
         // PVS is running
         QStringList accessOptions;
-        accessOptions << "None" << "View Only" << "Full";
+        accessOptions << tr("None") << tr("View Only") << tr("Full");
         ui->comboBoxLecturer->insertItems(0, accessOptions);
         ui->comboBoxOthers->insertItems(0, accessOptions);
 
diff --git a/src/i18n/de.ts b/src/i18n/de.ts
new file mode 100644
index 0000000..b8063d6
--- /dev/null
+++ b/src/i18n/de.ts
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0" language="de">
+<context>
+    <name>Dialog</name>
+    <message>
+        <location filename="../ui/dialog.ui" line="14"/>
+        <source>vmchooser</source>
+        <translation>vmchooser</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="36"/>
+        <source>PVS Options</source>
+        <translation>PVS Einstellungen</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="44"/>
+        <source>VNC access by lecturer:</source>
+        <translation>VNC-Zugriff für Dozenten:</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="61"/>
+        <source>VNC access by others:</source>
+        <translation>VNC-Zugriff für andere:</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="102"/>
+        <source>Accept chat messages</source>
+        <translation>Chat-Nachrichten akzeptieren</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="109"/>
+        <source>Accept file transfers</source>
+        <translation>Dateiübertragungen akzeptieren</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="149"/>
+        <source>Abort</source>
+        <translation>Abbrechen</translation>
+    </message>
+    <message>
+        <location filename="../ui/dialog.ui" line="156"/>
+        <source>Start</source>
+        <translation>Start</translation>
+    </message>
+    <message>
+        <location filename="../dialog.cpp" line="19"/>
+        <source>None</source>
+        <translation>kein Zugriff</translation>
+    </message>
+    <message>
+        <location filename="../dialog.cpp" line="19"/>
+        <source>View Only</source>
+        <translation>nur ansehen</translation>
+    </message>
+    <message>
+        <location filename="../dialog.cpp" line="19"/>
+        <source>Full</source>
+        <translation>Vollzugriff</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="196"/>
+        <source>X Sessions</source>
+        <translation>X Sitzungen</translation>
+    </message>
+    <message>
+        <location filename="../main.cpp" line="197"/>
+        <source>Virtual Sessions</source>
+        <translation>Virtuelle Sitzungen</translation>
+    </message>
+</context>
+</TS>
diff --git a/src/main.cpp b/src/main.cpp
index 6766403..c44d362 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,6 +3,7 @@
 
 #include <iostream>
 #include <stdlib.h>
+#include <QTranslator>
 #include "save_restore_session.h"
 #include "xsession.h"
 #include "vsession.h"
@@ -18,6 +19,10 @@ using namespace std;
 int main(int argc, char *argv[]) {
     QApplication a(argc, argv);
 
+    QTranslator translator;
+    translator.load(":" + QLocale::system().name());
+    a.installTranslator(&translator);
+
   string version = "0.0.13";
   AnyOption* opt = new AnyOption();
   char* xmlpath = NULL;
@@ -188,8 +193,8 @@ int main(int argc, char *argv[]) {
   Dialog w;
   w.resize(width, height);
 
-  w.addItems(xsessions, "X Sessions");
-  w.addItems(vsessions, "Virtual Sessions");
+  w.addItems(xsessions, a.translate("Dialog", "X Sessions"));
+  w.addItems(vsessions, a.translate("Dialog", "Virtual Sessions"));
   w.selectPreviousSession();
   w.show();
   return a.exec();
diff --git a/src/ui/dialog.ui b/src/ui/dialog.ui
index fe03b5d..6594b63 100644
--- a/src/ui/dialog.ui
+++ b/src/ui/dialog.ui
@@ -11,7 +11,7 @@
    </rect>
   </property>
   <property name="windowTitle">
-   <string>Dialog</string>
+   <string>vmchooser</string>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
@@ -146,7 +146,7 @@
      <item>
       <widget class="QPushButton" name="pushButtonAbort">
        <property name="text">
-        <string>Abbrechen</string>
+        <string>Abort</string>
        </property>
       </widget>
      </item>