- bugfix: crash on overwriting a mod (introduced after the previous release)

- bugfix: ncc installer now brings the installer window to front (again? more reliably? not sure if it really worked before)

README.txt

@@ -1,53 +1,125 @@
 HOW TO BUILD
 ============
 
+Intro:
+------
+
+Building Mod Organizer can be a rather daunting task especially if you're not very comfortable with C++ development under windows.
+Please note that if you only want to work on and build a plugin you can save yourself a lot of trouble
+
+Overview:
+---------
+
+As of December 2013 MO consists of the following subprojects:
+- organizer: The main userinterface. heavy usage of various libraries
+- hookdll: core library of the virtual file system
+- uibase: interop between plugins and the main application as well as some reusable functionality
+- shared: functionality shared between organizer and hookdll. I'm attempting to get rid of this library over time
+- nxmhandler: tool to pass handling of nxm links to MO or other applications
+- helper: tool for doing operations requiring elevated priviledges if MO doesn't have them
+- proxydll: dll used in the "proxy dll" load mechanism
+- esptk: small library containing functionality to work with esps/esms
+- bsatk: small library containing functionality to work with bsas. Requires zlib to extract files. Requires boost_thread to provide multi-threaded extraction
+- archive: small wrapper library around 7zip for dealing with mod archives. Requires 7zip
+- NCC: extension to NMM to provide a binary with command line interface for fomod installation. This is c# code and does not build with the rest of the project. Requires the rest of NMM
+- bossdummy: dummy dll that looks like the boss.dll. This is used instead of the real boss dlls in NCC to save some disk space
+- pythonrunner: library for embedding python code. Requires boost_python, python 2.7 and pyqt4
+
+And various plugins:
+- checkFNIS: Activates each time an application is started from MO and runs fnis if necessary
+- diagnoseBasic: Various diagnostic checks on the game
+- inieditor: minimalistic file editor for ini files
+- installerBain: handles non-scripted bain installers
+- installerBCF: no functionality. Supposed to eventually allow installations using bcfs (bain conversion file). python code
+- installerBundle: handles installation of archives wrapped in archives
+- installerFomod: handles installation of xml fomods
+- installerManual: handles installations of archives that aren't supported by any other plugin (or if the user chooses to do the installation manually)
+- installerNCC: handles installation of any fomod (requires NCC)
+- installerQuick: handles very simple one-click installations
+- NMMImport: importer from existing nmm installation
+- proxyPython: integrates pythonrunner as a plugin into MO
+- pyniEdit: more user-friendly ini editor. python code
+
+
 Requirements:
 -------------
 
 Visual C++ compiler 2010 (VC 10.0) or up
-- Included in visual c++ express 2010 or windows sdk 7.0
+- Included in visual c++ express 2010 or windows sdk 7.x
+- Do install windows sdk too if only for the cdb debugger which is included in that package
+Note: If you're having trouble installing the windows sdk, you may be affected by this bug: http://support.microsoft.com/kb/2717426
 
-QtSDK 4.8.x (http://qt-project.org/downloads)
-- Qt5 is not yet supported but WIP
+Qt Libraries 4.8.x (http://qt-project.org/downloads)
+- i.e. "Qt libraries 4.8.5 for Windows (VS 2010, 235 MB)"
+- tested: 4.8.5
+- Qt5 is not yet supported but WIP. You will see a few conditional qt5 pathes
 - Install according to instruction
 
 boost libraries (http://www.boost.org/)
-- Compile according to their instructions (using vc++)
-- As of time of writing boost_thread is the only compiled boost library used, you can
-  disable the others to safe yourself the compile time
+- tested: 1.49
+- Build according to their instructions (using vc++): http://www.boost.org/doc/libs/1_54_0/more/getting_started/windows.html
+- A few of the boost libraries need to be built (the rest is header-only). The only compiled libs MO needs (at the time of writing) are
+  boost_thread (for everything that links agains bsatk) and boost_python (for pythonrunner). You can disable the others to save yourself compile time (even on a modern system compiling boost can easily take an hour)
 
 zlib (http://www.zlib.net/)
 - Compile static library according to their instructions
-- You should have a "zlibstatic.lib" under "build" afterwards
+- Depending on the version of zlib and how you built you should have a file called zlibstatic.lib or zlibstat.lib in "build" or "x86\ZLibStatRelease".
+- Please copy that lib file to "build\zlibstatic.lib" (if it doesn't exist) so MO finds it.
+
+7z sourcecode (http://www.7-zip.org/download.html)
+- only for "archive" subproject
+- no need to compile, will be linked into project
+
+Python 2.7 (32-bit)
+- only for pythonrunner
+
+PyQt4 for Python 2.7
+- tested: 4.10
+- only for pythonrunner
 
-7z.dll (http://www.7-zip.org/download.html)
-- Part of the 7-zip program
-- Has to be the 32-bit dll! (approx. 893kb)
 
 Recommended:
 ------------
 
 Qt Creator
-- Included in QtSDK but there might be a newer version as a separate download
+- http://qt-project.org/downloads#qt-creator
+- I.e. "Qt Creator 2.8.1 for Windows (53 MB)"
+- With Qt Creator usually the rule is "the newer the better"
+- Start Qt Creator and check if things are set up correctly:
+  1) Go to Tools > Options > Build & Run > Qt Versions
+	2.1) If the QtSDK 4.8.x you installed earlier is not auto-detected, click "Add" to add it manually
+	2.2) Navigate to your <your qt4 installation>\bin\qmake.exe
+	2.3) Restart qt creator
+	3) Go to Tools > Options > Build & Run > Kits
+	3.1) If no Kit is auto-detected (or the auto-detected ones have picked up the wrong qt or vc++ installation) click "Add"
+	3.2) Enter a Name (i.e. "Qt 4.8.5 MSVC2010 32bit")
+	3.3) In Compiler select the visual studio compiler installed earlier (may show up as "Microsoft Windows SDK for Windows x). Make sure you select the x86 variant
+	3.4) CDB should be auto-detected
+	3.5) Select the qt version set up earlier
+	4) Apply and close the options
 
 Set up (using Qt Creator):
 --------------------------
 
 1. Using Qt Creator open source/ModOrganizer.pro from your working copy
 2. Open the "Projects" tab, open the "Details" for "Build Environment"
-3. Click "Add" to add a variable called "BOOSTPATH" with the path of your boost installation as the value (i.e. C:\code\boost_1_52_0)
-4. Click "Add" to add a variable called "ZLIBPATH" with the path of your zlib installation as the value (i.e. C:\code\zlib-1.2.7)
-5. Switch the build configuration at the very top of the same page from "debug" to "release" (or vice versa) and repeat steps 3 and 4
-6. Compile the configuration(s) you want to use (debug and/or release) (Build All). This should compile correctly.
+3a. Click "Add" to add a variable called "BOOSTPATH" with the path of your boost installation as the value (i.e. C:\code\boost_1_49_0)
+3b. Click "Add" to add a variable called "ZLIBPATH" with the path of your zlib installation as the value (i.e. C:\code\zlib-1.2.7)
+3c. Click "Add" to add a variable called "7ZIPPATH" with the path of your zlib installation as the value (i.e. C:\code\7zip)
+3d. Click "Add" to add a variable called "PYTHONPATH" with the path of your zlib installation as the value (i.e. C:\code\python)
+4. Switch the build configuration at the very top of the same page from "debug" to "release" (or vice versa) and repeat step 3
+5. Compile the configuration(s) you want to use (debug and/or release) (Build All). This should compile correctly.
+6. <reserved for future use. Maybe grab a coffee?>
 7. return to the "projects" tab and switch to "Run Settings"
+8. Determine the folder of the qt binaries in the package you downloaded. This could be "QtSDK\Desktop\Qt\4.8.5\msvc2010\bin" or "Qt4.8.5\bin"
 For Release build:
-8r. Add a "Run configuration" that points to <your working copy>\output\ModOrganizer.exe
-9r. Copy "7z.dll" to <your working copy>\output\dlls
-10r. From QtSDK\Desktop\Qt\4.8.0\msvc2010\bin copy the following files to <your working copy>\output\dlls: QtCore4.dll, QtDeclarative4.dll, QtGui4.dll, QtNetwork4.dll, QtScript4.dll, QtSql4.dll, QtWebkit4.dll, QtXml4.dll, QtXmlPatterns4.dll
+9r. Add a "Run configuration" that points to <your working copy>\output\ModOrganizer.exe
+10r. Copy "7z.dll" to <your working copy>\output\dlls
+11r. From the qt binaries directory, copy the following files to <your working copy>\output\dlls: QtCore4.dll, QtDeclarative4.dll, QtGui4.dll, QtNetwork4.dll, QtScript4.dll, QtSql4.dll, QtWebkit4.dll, QtXml4.dll, QtXmlPatterns4.dll
 For Debug build:
-8d. Add a "Run configuration" that points to <your working copy>\outputd\ModOrganizer.exe
-9d. Copy "7z.dll" to <your working copy>\outputd\dlls
-10d. From QtSDK\Desktop\Qt\4.8.0\msvc2010\bin copy the following files to <your working copy>\outputd\dlls: QtCored4.dll, QtDeclaratived4.dll, QtGuid4.dll, QtNetworkd4.dll, QtScriptd4.dll, QtSqld4.dll, QtWebkitd4.dll, QtXmld4.dll, QtXmlPatternsd4.dll
+9d. Add a "Run configuration" that points to <your working copy>\outputd\ModOrganizer.exe
+10d. Copy "7z.dll" to <your working copy>\outputd\dlls
+11d. From the qt binaries copy the following files to <your working copy>\outputd\dlls: QtCored4.dll, QtDeclaratived4.dll, QtGuid4.dll, QtNetworkd4.dll, QtScriptd4.dll, QtSqld4.dll, QtWebkitd4.dll, QtXmld4.dll, QtXmlPatternsd4.dll
 
 Now you should be able to compile and run Mod Organizer.
 Please note that when you change anything apart from the "organizer" subproject, qt creator may not pick up on the changes
@@ -65,4 +137,78 @@ Set up (without Qt Creator):
 
 I'm not using this workflow so I can't give more detailed instructions.
 Please note that the primary project format of MO remains qmake, if you work with visual studio and make changes to the project (like adding
-source files) you have to manually transfer those changes to the .pro file.
+source files) you have to manually transfer those changes to the .pro file.
+
+
+
+-----------------
+Troubleshooting (thanks to Ross):
+-----------------
+
+1) When I try to build, I am seeing the error "error: LNK1104: cannot open file 'zlibstatic.lib'"
+
+	a) Make sure you have the following files
+		{ZLIBPATH}\build\zconf.h
+  		{ZLIBPATH}\build\zlib.h
+  		{ZLIBPATH}\build\zlibstatic.lib
+
+	b) make sure "zlibstat.lib" was renamed to "zlibstatic.lib"
+	c) currently, there are references to zlibstatic in the following 2 project files:
+		./bsatk/bsatk.pro
+		./hookdll/hookdll.pro
+
+2) After building, I try to open {MOPROJECTPATH}\outputd\ModOragnizer.exe and get this error
+	"The program can't start because QtDeclaratived4.dll is missing from your computer. Try reinstalling the program to fix this problem."
+
+		-> When setting up Qt4.8.x, make sure you copied the "d" (debug) versions of the dll files to {MOPROJECTPATH}\outputd\dlls
+		   If you copied the release version or did not copy the dlls at all, you may see this error.
+		   The *.dll files can be found in {QT48xPATH}\bin
+
+		Similiar:
+		http://stackoverflow.com/questions/11196416/cant-start-qt-exe-file-on-windows-7
+
+3) I am getting one or more of the the following compiler warnings...
+
+	"{MOPROJECTPATH}\source\bsatk\bsaexception.cpp:32: warning: C4996: 'vsnprintf': This function or variable may be unsafe.
+	Consider using vsnprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details."
+		-> Ignore/suppress warning like this and make be ultra-careful using printf-style functions. vsnprintf_s is a visual-c++ only function so using those would make porting (i.e. to mingw) harder
+	
+	"C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\INCLUDE\stdio.h:354: see declaration of 'vsnprintf'"
+		-> see previous
+	
+	"debug\bsaarchive.obj:-1: warning: LNK4042: object specified more than once; extras ignored"
+
+		-> This appears to be an issue when using VC++ 2010 as the compiler. There are some posts on StackOverflow
+			which suggest fixes when using VC++ as the IDE, but not sure how to apply them to Qt Creator.
+				http://stackoverflow.com/questions/3729515
+				http://stackoverflow.com/questions/3695174
+			
+		-> Also, not sure if this affects VC++ 2012 / VC++ 2013 / GCC via cygwin/mingw.
+			Not even sure if the project would successfully compile on these.
+	
+	"{MOPROJECTPATH}\source\organizer\mainwindow.cpp:3995: warning: C4428: universal-character-name encountered in source"
+	
+		-> very pointless warning.
+			http://stackoverflow.com/questions/11589571
+			http://stackoverflow.com/questions/7078013
+			
+			the best solution I saw was to just disable the warning altogether...
+			#pragma warning( disable : 4428 )
+
+	"warning: LNK4098: defaultlib 'LIBCMT' conflicts with use of other libs; use /NODEFAULTLIB:library"
+	
+	-> You can always add a #pragma to ignore them :P
+		http://msdn.microsoft.com/en-us/library/2c8f766e%28v=vs.80%29.aspx
+	
+4) I got the following error while building...
+	"error: LNK1201: error writing to program database
+	'{MOPROJECTPATH}\{whatever-your-build-directory-name-is}\organizer\debug\ModOrganizer.pdb';
+	check for insufficient disk space, invalid path, or insufficient privilege"
+	
+	-> I had this happen after trying to look at something in memory via Process Explorer.
+	   To resolve, I killed and restarted PE. Alternatively, you could probably use the
+	   Unlocker utility. After unlocking, I manually deleted everything in the directory.
+
+	   Unlocker: http://www.filehippo.com/download_unlocker/ or http://www.emptyloop.com/unlocker/
+	   Warning: With Unlocker v1.9.2, you must select "Advanced" then uncheck everything to
+	   avoid having some Delta toolbar garbage installed...

src/ModOrganizer.pro

@@ -1,23 +1,23 @@
 TEMPLATE = subdirs
-CONFIG += ordered
 
 
 SUBDIRS = bsatk \
-					shared \
-					uibase \
-					organizer \
-					hookdll \
-					archive \
-					helper \
+          shared \
+          uibase \
+          organizer \
+          hookdll \
+          archive \
+          helper \
           plugins \
           proxydll \
           nxmhandler \
-    BossDummy \
-    pythonRunner \
-    esptk
+          BossDummy \
+          pythonRunner \
+          esptk
 
+plugins.depends = pythonRunner
 hookdll.depends = shared
-organizer.depends = shared, uibase, plugins
+organizer.depends = shared uibase plugins
 
 CONFIG(debug, debug|release) {
     DESTDIR = outputd

src/categories.cpp

@@ -103,6 +103,7 @@ CategoryFactory &CategoryFactory::instance()
 void CategoryFactory::reset()
 {
   m_Categories.clear();
+  m_IDMap.clear();
   addCategory(0, "None", MakeVector<int>(2, 28, 87), 0);
 }
 

src/downloadlistwidget.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>315</width>
-    <height>75</height>
+    <height>81</height>
    </rect>
   </property>
   <property name="contextMenuPolicy">
@@ -78,14 +78,14 @@
         <item>
          <widget class="QLabel" name="sizeLabel">
           <property name="text">
-           <string>0</string>
+           <string notr="true">0</string>
           </property>
          </widget>
         </item>
         <item>
          <widget class="QLabel" name="label_2">
           <property name="text">
-           <string>KB</string>
+           <string notr="true">KB</string>
           </property>
          </widget>
         </item>

src/downloadmanager.cpp

@@ -153,7 +153,8 @@ QString DownloadManager::DownloadInfo::currentURL()
 
 
 DownloadManager::DownloadManager(NexusInterface *nexusInterface, QObject *parent)
-  : IDownloadManager(parent), m_NexusInterface(nexusInterface), m_DirWatcher(), m_ShowHidden(false)
+  : IDownloadManager(parent), m_NexusInterface(nexusInterface), m_DirWatcher(), m_ShowHidden(false),
+    m_DateExpression("/Date\\((\\d+)\\)/")
 {
   connect(&m_DirWatcher, SIGNAL(directoryChanged(QString)), this, SLOT(directoryChanged(QString)));
 }
@@ -851,7 +852,6 @@ void DownloadManager::downloadProgress(qint64 bytesReceived, qint64 bytesTotal)
       setState(info, STATE_PAUSED);
     } else {
       if (bytesTotal > info->m_TotalSize) {
-        qDebug("file size %s: %lld", qPrintable(info->m_FileName), bytesTotal);
         info->m_TotalSize = bytesTotal;
       }
       int oldProgress = info->m_Progress;
@@ -883,6 +883,7 @@ void DownloadManager::createMetaFile(DownloadInfo *info)
   metaFile.setValue("name", info->m_NexusInfo.m_Name);
   metaFile.setValue("modName", info->m_NexusInfo.m_ModName);
   metaFile.setValue("version", info->m_NexusInfo.m_Version);
+  metaFile.setValue("fileTime", info->m_NexusInfo.m_FileTime);
   metaFile.setValue("fileCategory", info->m_NexusInfo.m_FileCategory);
   metaFile.setValue("newestVersion", info->m_NexusInfo.m_NewestVersion);
   metaFile.setValue("category", info->m_NexusInfo.m_Category);
@@ -914,11 +915,9 @@ void DownloadManager::nxmDescriptionAvailable(int, QVariant userData, QVariant r
 
   DownloadInfo *info = downloadInfoByID(userData.toInt());
   if (info == NULL) return;
-
   info->m_NexusInfo.m_Category = result["category_id"].toInt();
   info->m_NexusInfo.m_ModName = result["name"].toString().trimmed();
   info->m_NexusInfo.m_NewestVersion = result["version"].toString();
-
   if (info->m_FileID != 0) {
     setState(info, STATE_READY);
   } else {
@@ -927,6 +926,17 @@ void DownloadManager::nxmDescriptionAvailable(int, QVariant userData, QVariant r
 }
 
 
+QDateTime DownloadManager::matchDate(const QString &timeString)
+{
+  if (m_DateExpression.exactMatch(timeString)) {
+    return QDateTime::fromMSecsSinceEpoch(m_DateExpression.cap(1).toLongLong());
+  } else {
+    qWarning("date not matched: %s", qPrintable(timeString));
+    return QDateTime::currentDateTime();
+  }
+}
+
+
 void DownloadManager::nxmFilesAvailable(int, QVariant userData, QVariant resultData, int requestID)
 {
   std::set<int>::iterator idIter = m_RequestIDs.find(requestID);
@@ -960,7 +970,11 @@ void DownloadManager::nxmFilesAvailable(int, QVariant userData, QVariant resultD
         (fileNameVariant == info->m_FileName) || (fileNameVariant == alternativeLocalName)) {
       info->m_NexusInfo.m_Name = fileInfo["name"].toString();
       info->m_NexusInfo.m_Version = fileInfo["version"].toString();
+      if (info->m_NexusInfo.m_Version.isEmpty()) {
+        info->m_NexusInfo.m_Version = info->m_NexusInfo.m_NewestVersion;
+      }
       info->m_NexusInfo.m_FileCategory = fileInfo["category_id"].toInt();
+      info->m_NexusInfo.m_FileTime = matchDate(fileInfo["date"].toString());
       info->m_FileID = fileInfo["id"].toInt();
       found = true;
       break;
@@ -1014,7 +1028,11 @@ void DownloadManager::nxmFileInfoAvailable(int modID, int fileID, QVariant userD
 
   info.m_Name = result["name"].toString();
   info.m_Version = result["version"].toString();
+  if (info.m_Version.isEmpty()) {
+    info.m_Version = info.m_NewestVersion;
+  }
   info.m_FileName = result["uri"].toString();
+  info.m_FileTime = matchDate(result["date"].toString());
 
   if (userData.isValid()) {
     m_RequestIDs.insert(m_NexusInterface->requestDownloadURL(modID, fileID, this, qVariantFromValue(info), userData.toString()));

src/downloadmanager.h

@@ -46,6 +46,7 @@ struct NexusInfo {
   QString m_NewestVersion;
   QString m_FileName;
   QVariantList m_DownloadMap;
+  QDateTime m_FileTime;
   bool m_Set;
 };
 Q_DECLARE_METATYPE(NexusInfo)
@@ -437,6 +438,8 @@ private:
 
   DownloadInfo *downloadInfoByID(unsigned int id);
 
+  QDateTime matchDate(const QString &timeString);
+
 private:
 
   static const int AUTOMATIC_RETRIES = 3;
@@ -458,6 +461,8 @@ private:
 
   bool m_ShowHidden;
 
+  QRegExp m_DateExpression;
+
 };
 
 #endif // DOWNLOADMANAGER_H

src/installationmanager.cpp

@@ -426,7 +426,7 @@ QString InstallationManager::generateBackupName(const QString &directoryName) co
 }
 
 
-bool InstallationManager::testOverwrite(GuessedValue<QString> &modName) const
+bool InstallationManager::testOverwrite(GuessedValue<QString> &modName, bool *merge) const
 {
   QString targetDirectory = QDir::fromNativeSeparators(m_ModsDirectory + "\\" + modName);
 
@@ -440,6 +440,9 @@ bool InstallationManager::testOverwrite(GuessedValue<QString> &modName) const
           return false;
         }
       }
+      if (merge != nullptr) {
+        *merge = (overwriteDialog.action() == QueryOverwriteDialog::ACT_MERGE);
+      }
       if (overwriteDialog.action() == QueryOverwriteDialog::ACT_RENAME) {
         bool ok = false;
         QString name = QInputDialog::getText(m_ParentWidget, tr("Mod Name"), tr("Name"),
@@ -506,7 +509,6 @@ bool InstallationManager::ensureValidModName(GuessedValue<QString> &name) const
   return true;
 }
 
-
 bool InstallationManager::doInstall(GuessedValue<QString> &modName, int modID,
                                     const QString &version, const QString &newestVersion, int categoryID)
 {
@@ -514,8 +516,9 @@ bool InstallationManager::doInstall(GuessedValue<QString> &modName, int modID,
     return false;
   }
 
+  bool merge = false;
   // determine target directory
-  if (!testOverwrite(modName)) {
+  if (!testOverwrite(modName, &merge)) {
     return false;
   }
 
@@ -528,7 +531,6 @@ bool InstallationManager::doInstall(GuessedValue<QString> &modName, int modID,
   m_InstallationProgress.setValue(0);
   m_InstallationProgress.setWindowModality(Qt::WindowModal);
   m_InstallationProgress.show();
-
   if (!m_CurrentArchive->extract(ToWString(QDir::toNativeSeparators(targetDirectory)).c_str(),
          new MethodCallback<InstallationManager, void, float>(this, &InstallationManager::updateProgress),
          new MethodCallback<InstallationManager, void, LPCWSTR>(this, &InstallationManager::updateProgressFile),
@@ -551,7 +553,7 @@ bool InstallationManager::doInstall(GuessedValue<QString> &modName, int modID,
   }
   if (!settingsFile.contains("version") ||
       (!version.isEmpty() &&
-       (VersionInfo(version) >= VersionInfo(settingsFile.value("version").toString())))) {
+       (!merge || (VersionInfo(version) >= VersionInfo(settingsFile.value("version").toString()))))) {
     settingsFile.setValue("version", version);
   }
   if (!newestVersion.isEmpty() || !settingsFile.contains("newestVersion")) {
@@ -649,7 +651,7 @@ bool InstallationManager::install(const QString &fileName, GuessedValue<QString>
   }
 
   m_CurrentFile = fileInfo.absoluteFilePath();
-  if (fileInfo.dir() == QDir(ToQString(GameInfo::instance().getDownloadDir()))) {
+  if (fileInfo.dir() == QDir(m_DownloadsDirectory)) {
     m_CurrentFile = fileInfo.fileName();
   }
   qDebug("using mod name \"%s\" (id %d) -> %s", modName->toUtf8().constData(), modID, qPrintable(m_CurrentFile));

src/installationmanager.h

@@ -64,6 +64,12 @@ public:
    */
   void setModsDirectory(const QString &modsDirectory) { m_ModsDirectory = modsDirectory; }
 
+  /**
+   * @brief update the directory where downloads are stored
+   * @param downloadDirectory the download directory
+   */
+  void setDownloadDirectory(const QString &downloadDirectory) { m_DownloadsDirectory = downloadDirectory; }
+
   /**
    * @brief install a mod from an archive
    *
@@ -132,9 +138,10 @@ public:
   /**
    * @brief test if the specified mod name is free. If not, query the user how to proceed
    * @param modName current possible names for the mod
+   * @param merge if this value is not null, the value will be set to whether the use chose to merge or replace
    * @return true if we can proceed with the installation, false if the user canceled or in case of an unrecoverable error
    */
-  virtual bool testOverwrite(MOBase::GuessedValue<QString> &modName) const;
+  virtual bool testOverwrite(MOBase::GuessedValue<QString> &modName, bool *merge = NULL) const;
 
 private:
 
@@ -159,7 +166,7 @@ private:
   bool isSimpleArchiveTopLayer(const MOBase::DirectoryTree::Node *node, bool bainStyle);
   MOBase::DirectoryTree::Node *getSimpleArchiveBase(MOBase::DirectoryTree *dataTree);
 
-  bool testOverwrite(const QString &modsDirectory, MOBase::GuessedValue<QString> &modName);
+  //bool testOverwrite(const QString &modsDirectory, MOBase::GuessedValue<QString> &modName, bool *merge = NULL);
 
   bool doInstall(MOBase::GuessedValue<QString> &modName,
                  int modID, const QString &version, const QString &newestVersion, int categoryID);
@@ -191,6 +198,7 @@ private:
   QWidget *m_ParentWidget;
 
   QString m_ModsDirectory;
+  QString m_DownloadsDirectory;
 
   std::vector<MOBase::IPluginInstaller*> m_Installers;
   std::set<QString, CaseInsensitive> m_SupportedExtensions;

src/main.cpp

@@ -60,7 +60,6 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 #include "selectiondialog.h"
 #include "moapplication.h"
 #include "tutorialmanager.h"
-#include <QLibrary>
 #include <iostream>
 #include <QMessageBox>
 #include <QSharedMemory>
@@ -140,7 +139,7 @@ bool bootstrap()
           QObject::tr("The current user account doesn't have the required access rights to run "
              "Mod Organizer. The neccessary changes can be made automatically (the MO directory "
              "will be made writable for the current user account). You will be asked to run "
-             "\"helper.exe\" with administrative rights)."),
+             "\"helper.exe\" with administrative rights."),
              QMessageBox::Yes | QMessageBox::Cancel) == QMessageBox::Yes) {
         if (!Helper::init(GameInfo::instance().getOrganizerDirectory())) {
           return false;
@@ -156,6 +155,7 @@ bool bootstrap()
 
   // verify the hook-dll exists
   QString dllName = qApp->applicationDirPath() + "/" + ToQString(AppConfig::hookDLLName());
+
   HMODULE dllMod = ::LoadLibraryW(ToWString(dllName).c_str());
   if (dllMod == NULL) {
     throw windows_error("hook.dll is missing or invalid");
@@ -400,6 +400,27 @@ int main(int argc, char *argv[])
       settings.setValue("gamePath", gamePath.toUtf8().constData());
     }
 
+    int edition = 0;
+    if (settings.contains("game_edition")) {
+      edition = settings.value("game_edition").toInt();
+    } else {
+      std::vector<std::wstring> editions = GameInfo::instance().getSteamVariants();
+      if (editions.size() < 2) {
+        edition = 0;
+      } else {
+        SelectionDialog selection(QObject::tr("Please select the game edition you have (MO can't start the game correctly if this is set incorrectly!)"), NULL);
+        int index = 0;
+        for (auto iter = editions.begin(); iter != editions.end(); ++iter) {
+          selection.addChoice(ToQString(*iter), "", index++);
+        }
+        if (selection.exec() == QDialog::Rejected) {
+          return -1;
+        } else {
+          settings.setValue("game_edition", selection.getChoiceData().toInt());
+        }
+      }
+    }
+
     qDebug("managing game at %s", qPrintable(QDir::toNativeSeparators(gamePath)));
 
     ExecutablesList executablesList;

src/mainwindow.h

@@ -98,7 +98,6 @@ public:
   void refreshBSAList();
   void refreshDataTree();
   void refreshSaveList();
-  void refreshModList();
 
   void setExecutablesList(const ExecutablesList &executablesList);
 
@@ -135,10 +134,14 @@ public:
   virtual QString resolvePath(const QString &fileName) const;
   virtual QStringList listDirectories(const QString &directoryName) const;
   virtual QStringList findFiles(const QString &path, const std::function<bool(const QString &)> &filter) const;
+  virtual QList<FileInfo> findFileInfos(const QString &path, const std::function<bool(const FileInfo&)> &filter) const;
+
   virtual MOBase::IDownloadManager *downloadManager();
   virtual MOBase::IPluginList *pluginList();
+  virtual MOBase::IModList *modList();
   virtual HANDLE startApplication(const QString &executable, const QStringList &args = QStringList(), const QString &cwd = "", const QString &profile = "");
   virtual bool onAboutToRun(const std::function<bool(const QString&)> &func);
+  virtual void refreshModList(bool saveChanges = true);
 
   virtual std::vector<unsigned int> activeProblems() const;
   virtual QString shortDescription(unsigned int key) const;
@@ -194,7 +197,7 @@ private:
   void actionToToolButton(QAction *&sourceAction);
   bool verifyPlugin(MOBase::IPlugin *plugin);
   void registerPluginTool(MOBase::IPluginTool *tool);
-  bool registerPlugin(QObject *pluginObj);
+  bool registerPlugin(QObject *pluginObj, const QString &fileName);
 
   void updateToolBar();
   void activateSelectedProfile();
@@ -227,9 +230,23 @@ private:
 
   void refreshFilters();
 
-  void saveCategoriesFromMenu(QMenu *menu, int modRow);
+  /**
+   * Sets category selections from menu; for multiple mods, this will only apply
+   * the changes made in the menu (which is the delta between the current menu selection and the reference mod)
+   * @param menu the menu after editing by the user
+   * @param modRow index of the mod to edit
+   */
+  void addRemoveCategoriesFromMenu(QMenu *menu, int modRow);
 
-  bool addCategories(QMenu *menu, int targetID);
+  /**
+   * Sets category selections from menu; for multiple mods, this will completely
+   * replace the current set of categories on each selected with those selected in the menu
+   * @param menu the menu after editing by the user
+   * @param modRow index of the mod to edit
+   */
+  void replaceCategoriesFromMenu(QMenu *menu, int modRow);
+
+  bool populateMenuCategories(QMenu *menu, int targetID);
 
   void updateDownloadListDelegate();
 
@@ -269,10 +286,12 @@ private:
 
   static void setupNetworkProxy(bool activate);
   void activateProxy(bool activate);
+  void installTranslator(const QString &name);
 
 private:
 
   static const unsigned int PROBLEM_PLUGINSNOTLOADED = 1;
+  static const unsigned int PROBLEM_TOOMANYPLUGINS = 2;
 
 private:
 
@@ -314,9 +333,6 @@ private:
   DownloadManager m_DownloadManager;
   InstallationManager m_InstallationManager;
 
-  QTranslator *m_Translator;
-  QTranslator *m_TranslatorQt;
-
   SelfUpdater m_Updater;
 
   CategoryFactory &m_CategoryFactory;
@@ -348,6 +364,9 @@ private:
 
   SignalAboutToRunApplication m_AboutToRun;
 
+  QString m_CurrentLanguage;
+  std::vector<QTranslator*> m_Translators;
+
 private slots:
 
   void showMessage(const QString &message);
@@ -427,7 +446,9 @@ private slots:
 
   void originModified(int originID);
 
-  void saveCategories();
+  void addRemoveCategories_MenuHandler();
+  void replaceCategories_MenuHandler();
+
   void savePrimaryCategory();
   void addPrimaryCategoryCandidates();
 
@@ -510,7 +531,7 @@ private slots: // ui slots
   void on_actionEndorseMO_triggered();
 
   void on_bsaList_customContextMenuRequested(const QPoint &pos);
-  void on_bsaList_itemChanged(QTreeWidgetItem *item, int column);
+  void bsaList_itemMoved();
   void on_btnRefreshData_clicked();
   void on_categoriesList_customContextMenuRequested(const QPoint &pos);
   void on_compactBox_toggled(bool checked);
@@ -531,6 +552,7 @@ private slots: // ui slots
   void on_categoriesList_itemSelectionChanged();
   void on_linkButton_pressed();
   void on_showHiddenBox_toggled(bool checked);
+  void on_bsaList_itemChanged(QTreeWidgetItem *item, int column);
 };
 
 #endif // MAINWINDOW_H

src/mainwindow.ui

@@ -725,7 +725,7 @@ p, li { white-space: pre-wrap; }
              <number>6</number>
             </property>
             <item>
-             <widget class="QTreeWidget" name="bsaList">
+             <widget class="MOBase::SortableTreeWidget" name="bsaList">
               <property name="contextMenuPolicy">
                <enum>Qt::CustomContextMenu</enum>
               </property>
@@ -742,7 +742,7 @@ BSAs checked here are loaded in such a way that your installation order is obeye
                <set>QAbstractItemView::NoEditTriggers</set>
               </property>
               <property name="showDropIndicator" stdset="0">
-               <bool>false</bool>
+               <bool>true</bool>
               </property>
               <property name="dragEnabled">
                <bool>false</bool>
@@ -751,10 +751,10 @@ BSAs checked here are loaded in such a way that your installation order is obeye
                <bool>false</bool>
               </property>
               <property name="dragDropMode">
-               <enum>QAbstractItemView::NoDragDrop</enum>
+               <enum>QAbstractItemView::DragDrop</enum>
               </property>
               <property name="defaultDropAction">
-               <enum>Qt::IgnoreAction</enum>
+               <enum>Qt::MoveAction</enum>
               </property>
               <property name="selectionMode">
                <enum>QAbstractItemView::SingleSelection</enum>
@@ -768,6 +768,12 @@ BSAs checked here are loaded in such a way that your installation order is obeye
               <property name="itemsExpandable">
                <bool>true</bool>
               </property>
+              <property name="columnCount">
+               <number>1</number>
+              </property>
+              <attribute name="headerVisible">
+               <bool>false</bool>
+              </attribute>
               <attribute name="headerDefaultSectionSize">
                <number>200</number>
               </attribute>
@@ -776,11 +782,6 @@ BSAs checked here are loaded in such a way that your installation order is obeye
                 <string>File</string>
                </property>
               </column>
-              <column>
-               <property name="text">
-                <string>Mod</string>
-               </property>
-              </column>
              </widget>
             </item>
             <item>
@@ -1224,6 +1225,11 @@ Right now this has very limited functionality</string>
    <extends>QTreeView</extends>
    <header>modlistview.h</header>
   </customwidget>
+  <customwidget>
+   <class>MOBase::SortableTreeWidget</class>
+   <extends>QTreeWidget</extends>
+   <header>sortabletreewidget.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="resources.qrc"/>

src/moapplication.cpp

@@ -19,16 +19,19 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "moapplication.h"
 #include "report.h"
-#include "utility.h"
+#include <utility.h>
 #include <appconfig.h>
 #include <QFile>
 #include <QStringList>
+#include <QPlastiqueStyle>
+#include <QCleanlooksStyle>
 
 
 MOApplication::MOApplication(int argc, char **argv)
   : QApplication(argc, argv)
 {
   connect(&m_StyleWatcher, SIGNAL(fileChanged(QString)), SLOT(updateStyle(QString)));
+  m_DefaultStyle = style()->objectName();
 }
 
 
@@ -42,11 +45,12 @@ bool MOApplication::setStyleFile(const QString &styleName)
   // set new stylesheet or clear it
   if (styleName.length() != 0) {
     QString styleSheetName = applicationDirPath() + "/" + MOBase::ToQString(AppConfig::stylesheetsPath()) + "/" + styleName;
-    if (!QFile::exists(styleSheetName)) {
-      return false;
+    if (QFile::exists(styleSheetName)) {
+      m_StyleWatcher.addPath(styleSheetName);
+      updateStyle(styleSheetName);
+    } else {
+      updateStyle(styleName);
     }
-    m_StyleWatcher.addPath(styleSheetName);
-    updateStyle(styleSheetName);
   } else {
     setStyleSheet("");
   }
@@ -74,11 +78,18 @@ bool MOApplication::notify(QObject *receiver, QEvent *event)
 
 void MOApplication::updateStyle(const QString &fileName)
 {
-  QFile file(fileName);
-  if (file.open(QFile::ReadOnly)) {
-    setStyleSheet(file.readAll());
+  if (fileName == "Plastique") {
+    setStyle(new QPlastiqueStyle);
+    setStyleSheet("");
+  } else if (fileName == "Cleanlooks") {
+    setStyle(new QCleanlooksStyle);
+    setStyleSheet("");
   } else {
-    qDebug("no stylesheet");
+    setStyle(m_DefaultStyle);
+    if (QFile::exists(fileName)) {
+      setStyleSheet(QString("file:///%1").arg(fileName));
+    } else {
+      qWarning("invalid stylesheet: %s", qPrintable(fileName));
+    }
   }
-  file.close();
 }

src/moapplication.h

@@ -43,6 +43,8 @@ private slots:
 private:
 
   QFileSystemWatcher m_StyleWatcher;
+  QString m_DefaultStyle;
+
 };
 
 

src/modinfo.cpp

@@ -541,6 +541,13 @@ bool ModInfoRegular::setName(const QString &name)
 void ModInfoRegular::setNotes(const QString &notes)
 {
   m_Notes = notes;
+  m_MetaInfoChanged = true;
+}
+
+void ModInfoRegular::setNexusID(int modID)
+{
+  m_NexusID = modID;
+  m_MetaInfoChanged = true;
 }
 
 void ModInfoRegular::setVersion(const VersionInfo &version)
@@ -560,7 +567,6 @@ void ModInfoRegular::addNexusCategory(int categoryID)
   m_Categories.insert(CategoryFactory::instance().resolveNexusID(categoryID));
 }
 
-
 void ModInfoRegular::setIsEndorsed(bool endorsed)
 {
   if (m_EndorsedState != ENDORSED_NEVER) {
@@ -828,6 +834,15 @@ ModInfoOverwrite::ModInfoOverwrite()
 }
 
 
+bool ModInfoOverwrite::isEmpty() const
+{
+  QDirIterator iter(absolutePath(), QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs);
+  if (!iter.hasNext()) return true;
+  iter.next();
+  if ((iter.fileName() == "meta.ini") && !iter.hasNext()) return true;
+  return false;
+}
+
 QString ModInfoOverwrite::absolutePath() const
 {
   return QDir::fromNativeSeparators(ToQString(GameInfo::instance().getOverwriteDir()));

src/modinfo.h

@@ -570,7 +570,7 @@ public:
    *
    * @param modID the nexus mod id
    **/
-  void setNexusID(int modID) { m_NexusID = modID; }
+  void setNexusID(int modID);
 
   /**
    * @brief set the version of this mod
@@ -866,6 +866,7 @@ public:
   virtual void setNeverEndorse() {}
   virtual bool remove() { return false; }
   virtual void endorse(bool) {}
+  virtual bool isEmpty() const;
   virtual QString name() const { return "Overwrite"; }
   virtual QString notes() const { return ""; }
   virtual QDateTime creationTime() const { return m_StartupTime; }

src/modinfodialog.cpp

@@ -254,17 +254,19 @@ void ModInfoDialog::refreshLists()
     } else if ((fileName.endsWith(".png", Qt::CaseInsensitive)) ||
                (fileName.endsWith(".jpg", Qt::CaseInsensitive))) {
       QImage image = QImage(fileName);
-      if (static_cast<float>(image.width()) / static_cast<float>(image.height()) > 1.34) {
-        image = image.scaledToWidth(128);
-      } else {
-        image = image.scaledToHeight(96);
-      }
+      if (!image.isNull()) {
+        if (static_cast<float>(image.width()) / static_cast<float>(image.height()) > 1.34) {
+          image = image.scaledToWidth(128);
+        } else {
+          image = image.scaledToHeight(96);
+        }
 
-      QPushButton *thumbnailButton = new QPushButton(QPixmap::fromImage(image), "");
-      thumbnailButton->setIconSize(QSize(image.width(), image.height()));
-      connect(thumbnailButton, SIGNAL(clicked()), &m_ThumbnailMapper, SLOT(map()));
-      m_ThumbnailMapper.setMapping(thumbnailButton, fileName);
-      ui->thumbnailArea->addWidget(thumbnailButton);
+        QPushButton *thumbnailButton = new QPushButton(QPixmap::fromImage(image), "");
+        thumbnailButton->setIconSize(QSize(image.width(), image.height()));
+        connect(thumbnailButton, SIGNAL(clicked()), &m_ThumbnailMapper, SLOT(map()));
+        m_ThumbnailMapper.setMapping(thumbnailButton, fileName);
+        ui->thumbnailArea->addWidget(thumbnailButton);
+      }
     }
   }
 
@@ -400,7 +402,13 @@ void ModInfoDialog::openTextFile(const QString &fileName)
   textFile.open(QIODevice::ReadOnly);
   QByteArray buffer = textFile.readAll();
   QTextCodec *codec = QTextCodec::codecForUtfText(buffer, m_UTF8Codec);
-  ui->textFileView->setText(codec->toUnicode(buffer));
+  QString text = codec->toUnicode(buffer);
+  if (codec->fromUnicode(text) != buffer) {
+    qDebug("conversion failed assuming local encoding");
+    codec = QTextCodec::codecForLocale();
+    text = codec->toUnicode(buffer);
+  }
+  ui->textFileView->setText(text);
   ui->textFileView->setProperty("currentFile", fileName);
   ui->textFileView->setProperty("encoding", codec->name());
   ui->saveTXTButton->setEnabled(false);
@@ -623,7 +631,7 @@ void ModInfoDialog::on_visitNexusLabel_linkActivated(const QString &link)
 
 void ModInfoDialog::linkClicked(const QUrl &url)
 {
-  if (url.toString().startsWith(ToQString(GameInfo::instance().getNexusPage()))) {
+  if (url.toString().startsWith(ToQString(GameInfo::instance().getNexusPage(false)))) {
     this->close();
     emit nexusLinkActivated(url.toString());
   } else {
@@ -1169,10 +1177,10 @@ void ModInfoDialog::on_prevButton_clicked()
 void ModInfoDialog::createTweak()
 {
   QString name = QInputDialog::getText(this, tr("Name"), tr("Please enter a name"));
-  if (!fixDirectoryName(name)) {
-    QMessageBox::critical(this, tr("Error"), tr("Invalid name. Must be a valid file name"));
+  if (name.isNull()) {
     return;
-  } else if (name.isEmpty()) {
+  } else if (!fixDirectoryName(name)) {
+    QMessageBox::critical(this, tr("Error"), tr("Invalid name. Must be a valid file name"));
     return;
   } else if (ui->iniTweaksList->findItems(name, Qt::MatchFixedString).count() != 0) {
     QMessageBox::critical(this, tr("Error"), tr("A tweak by that name exists"));

src/modinfodialog.ui

@@ -209,7 +209,7 @@
            <rect>
             <x>0</x>
             <y>0</y>
-            <width>676</width>
+            <width>668</width>
             <height>126</height>
            </rect>
           </property>
@@ -217,17 +217,22 @@
            <string>Images located in the mod.</string>
           </property>
           <property name="whatsThis">
-           <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
-&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
-p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;This lists all the images (.jpg and .png) in the mod directory, like screenshots and such. Click one to get a larger view.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           <string>This lists all the images (.jpg and .png) in the mod directory, like screenshots and such. Click one to get a larger view.</string>
           </property>
           <layout class="QHBoxLayout" name="horizontalLayout_2">
            <property name="spacing">
             <number>0</number>
            </property>
-           <property name="margin">
+           <property name="leftMargin">
+            <number>0</number>
+           </property>
+           <property name="topMargin">
+            <number>0</number>
+           </property>
+           <property name="rightMargin">
+            <number>0</number>
+           </property>
+           <property name="bottomMargin">
             <number>0</number>
            </property>
            <item>
@@ -254,14 +259,10 @@ p, li { white-space: pre-wrap; }
           <string>List of esps and esms that can not be loaded by the game.</string>
          </property>
          <property name="whatsThis">
-          <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
-&lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
-p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;List of esps and esms contained in this plugin that currently can not be loaded by the game. They will not even appear in the esp-list in the main MO-window.&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;They usually contain optional functionality, see the readme.&lt;/span&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:8pt;&quot;&gt;&lt;/p&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-size:8pt;&quot;&gt;Most mods do not have optional esps, so chances are good you are looking at an empty list.&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          <string>List of esps and esms contained in this plugin that currently can not be loaded by the game. They will not even appear in the esp-list in the main MO-window.
+They usually contain optional functionality, see the readme.
+
+Most mods do not have optional esps, so chances are good you are looking at an empty list.</string>
          </property>
         </widget>
        </item>
@@ -403,6 +404,9 @@ p, li { white-space: pre-wrap; }
          <property name="textElideMode">
           <enum>Qt::ElideLeft</enum>
          </property>
+         <property name="sortingEnabled">
+          <bool>true</bool>
+         </property>
          <property name="animated">
           <bool>true</bool>
          </property>
@@ -413,13 +417,13 @@ p, li { white-space: pre-wrap; }
           <number>2</number>
          </property>
          <attribute name="headerDefaultSectionSize">
-          <number>500</number>
+          <number>365</number>
          </attribute>
          <attribute name="headerHighlightSections">
           <bool>false</bool>
          </attribute>
          <attribute name="headerMinimumSectionSize">
-          <number>300</number>
+          <number>200</number>
          </attribute>
          <column>
           <property name="text">
@@ -459,14 +463,17 @@ p, li { white-space: pre-wrap; }
          <property name="textElideMode">
           <enum>Qt::ElideLeft</enum>
          </property>
+         <property name="sortingEnabled">
+          <bool>true</bool>
+         </property>
          <property name="animated">
           <bool>true</bool>
          </property>
          <attribute name="headerDefaultSectionSize">
-          <number>500</number>
+          <number>365</number>
          </attribute>
          <attribute name="headerMinimumSectionSize">
-          <number>300</number>
+          <number>200</number>
          </attribute>
          <column>
           <property name="text">
@@ -524,9 +531,9 @@ p, li { white-space: pre-wrap; }
         </widget>
        </item>
        <item>
-        <layout class="QHBoxLayout" name="horizontalLayout_8">
+        <layout class="QHBoxLayout" name="horizontalLayout_12">
          <item>
-          <widget class="QLabel" name="label_9">
+          <widget class="QLabel" name="label_12">
            <property name="text">
             <string>Primary Category</string>
            </property>
@@ -659,9 +666,8 @@ p, li { white-space: pre-wrap; }
           <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:8.25pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:8pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;
-&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px; font-size:8pt;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'MS Shell Dlg 2'; font-size:7.8pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;p style=&quot;-qt-paragraph-type:empty; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;br /&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
          </property>
          <property name="textInteractionFlags">
           <set>Qt::TextBrowserInteraction</set>

src/modlist.cpp

@@ -169,10 +169,17 @@ QVariant ModList::data(const QModelIndex &modelIndex, int role) const
       int category = modInfo->getPrimaryCategory();
       if (category != -1) {
         CategoryFactory &categoryFactory = CategoryFactory::instance();
-        try {
-          return categoryFactory.getCategoryName(categoryFactory.getCategoryIndex(category));
-        } catch (const std::exception &e) {
-          qCritical("failed to retrieve category name: %s", e.what());
+        if (categoryFactory.categoryExists(category)) {
+          try {
+            int categoryIdx = categoryFactory.getCategoryIndex(category);
+            return categoryFactory.getCategoryName(categoryIdx);
+          } catch (const std::exception &e) {
+            qCritical("failed to retrieve category name: %s", e.what());
+            return QString();
+          }
+        } else {
+          qWarning("category %d doesn't exist (may have been removed)", category);
+          modInfo->setCategory(category, false);
           return QString();
         }
       } else {
@@ -180,7 +187,12 @@ QVariant ModList::data(const QModelIndex &modelIndex, int role) const
         return QVariant();
       }
     } else if (column == COL_INSTALLTIME) {
-      return modInfo->creationTime();
+      // display installation time for mods that can be updated
+      if (modInfo->canBeUpdated()) {
+        return modInfo->creationTime();
+      } else {
+        return QVariant();
+      }
     } else {
       return tr("invalid");
     }
@@ -545,6 +557,86 @@ void ModList::changeModPriority(int sourceIndex, int newPriority)
   emit modorder_changed();
 }
 
+void ModList::modInfoAboutToChange(ModInfo::Ptr info)
+{
+  m_ChangeInfo.name = info->name();
+  m_ChangeInfo.state = state(info->name());
+}
+
+void ModList::modInfoChanged(ModInfo::Ptr info)
+{
+  if (info->name() == m_ChangeInfo.name) {
+    IModList::ModStates newState = state(info->name());
+    if (m_ChangeInfo.state != newState) {
+      m_ModStateChanged(info->name(), newState);
+    }
+    int row = ModInfo::getIndex(info->name());
+    info->testValid();
+    emit dataChanged(index(row, 0), index(row, columnCount()));
+  } else {
+    qCritical("modInfoChanged not called after modInfoAboutToChange");
+  }
+}
+
+IModList::ModStates ModList::state(const QString &name) const
+{
+  ModStates result;
+  unsigned int modIndex = ModInfo::getIndex(name);
+  if (modIndex != UINT_MAX) {
+    result |= IModList::STATE_EXISTS;
+    ModInfo::Ptr modInfo = ModInfo::getByIndex(modIndex);
+    if (modInfo->isEmpty()) {
+      result |= IModList::STATE_EMPTY;
+    }
+    if (modInfo->endorsedState() == ModInfo::ENDORSED_TRUE) {
+      result |= IModList::STATE_ENDORSED;
+    }
+    if (modInfo->isValid()) {
+      result |= IModList::STATE_VALID;
+    }
+    if (modInfo->canBeEnabled()) {
+      if (m_Profile->modEnabled(modIndex)) {
+        result |= IModList::STATE_ACTIVE;
+      }
+    } else {
+      result |= IModList::STATE_ESSENTIAL;
+    }
+  }
+  return result;
+}
+
+int ModList::priority(const QString &name) const
+{
+  unsigned int modIndex = ModInfo::getIndex(name);
+  if (modIndex == UINT_MAX) {
+    return -1;
+  } else {
+    return m_Profile->getModPriority(modIndex);
+  }
+}
+
+bool ModList::setPriority(const QString &name, int newPriority)
+{
+  if ((newPriority < 0) || (newPriority >= static_cast<int>(m_Profile->numRegularMods()))) {
+    return false;
+  }
+
+  unsigned int modIndex = ModInfo::getIndex(name);
+  if (modIndex == UINT_MAX) {
+    return false;
+  } else {
+    m_Profile->setModPriority(modIndex, newPriority);
+    notifyChange(modIndex);
+    return true;
+  }
+}
+
+
+bool ModList::onModStateChanged(const std::function<void (const QString &, IModList::ModStates)> &func)
+{
+  auto conn = m_ModStateChanged.connect(func);
+  return conn.connected();
+}
 
 bool ModList::dropURLs(const QMimeData *mimeData, int row, const QModelIndex &parent)
 {

src/modlist.h

@@ -26,11 +26,13 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
 #include "modinfo.h"
 #include "profile.h"
 
+#include <imodlist.h>
+
 #include <QFile>
 #include <QListWidget>
 #include <QNetworkReply>
 #include <QNetworkAccessManager>
-
+#include <boost/signals2.hpp>
 #include <set>
 #include <vector>
 #include <QVector>
@@ -41,7 +43,7 @@ along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
  * This is used in a view in the main window of MO. It combines general information about
  * the mods from ModInfo with status information from the Profile
  **/
-class ModList : public QAbstractItemModel
+class ModList : public QAbstractItemModel, public MOBase::IModList
 {
   Q_OBJECT
 
@@ -59,6 +61,8 @@ public:
     COL_LASTCOLUMN = COL_PRIORITY
   };
 
+  typedef boost::signals2::signal<void (const QString &, ModStates)> SignalModStateChanged;
+
 public:
 
   /**
@@ -92,6 +96,23 @@ public:
 
   void changeModPriority(int sourceIndex, int newPriority);
 
+  void modInfoAboutToChange(ModInfo::Ptr info);
+  void modInfoChanged(ModInfo::Ptr info);
+
+public:
+
+  /// \copydoc MOBase::IModList::state
+  virtual ModStates state(const QString &name) const;
+
+  /// \copydoc MOBase::IModList::priority
+  virtual int priority(const QString &name) const;
+
+  /// \copydoc MOBase::IModList::setPriority
+  virtual bool setPriority(const QString &name, int newPriority);
+
+  /// \copydoc MOBase::IModList::onModStateChanged
+  virtual bool onModStateChanged(const std::function<void (const QString &, ModStates)> &func);
+
 public: // implementation of virtual functions of QAbstractItemModel
 
   virtual int rowCount(const QModelIndex &parent = QModelIndex()) const;
@@ -232,6 +253,11 @@ private:
     unsigned int categoryOrder;
   };
 
+  struct TModInfoChange {
+    QString name;
+    QFlags<IModList::ModStates> state;
+  };
+
 private:
 
   Profile *m_Profile;
@@ -245,6 +271,14 @@ private:
 
   bool m_DropOnItems;
 
+  TModInfoChange m_ChangeInfo;
+
+  SignalModStateChanged m_ModStateChanged;
+
+
+  // QAbstractItemModel interface
+
+  // IModList interface
 };
 
 #endif // MODLIST_H