Merge branch 'mwregistry' of https://github.com/swick/openmw into swick-mwregistry

Signed-off-by: Lukasz Gromanowski <lgromanowski@gmail.com>

components/files/linuxpath.cpp

@@ -28,6 +28,7 @@
 #include <cstring>
 #include <pwd.h>
 #include <unistd.h>
+#include <boost/filesystem/fstream.hpp>
 
 /**
  * \namespace Files
@@ -154,10 +155,75 @@ boost::filesystem::path LinuxPath::getLocalDataPath() const
     return boost::filesystem::path("./data/");
 }
 
-
 boost::filesystem::path LinuxPath::getInstallPath() const
 {
-    return boost::filesystem::path("./");
+    char *homePath = getenv("HOME");
+    if(!homePath)
+    {
+        return boost::filesystem::path("");
+    }
+    
+    boost::filesystem::path wineDefaultRegistry(homePath);
+    wineDefaultRegistry /= ".wine/system.reg";
+    
+    boost::filesystem::path wineDriveC(homePath);
+    wineDriveC /= ".wine/drive_c";
+
+    boost::filesystem::file_status fileStatus = boost::filesystem::status(wineDefaultRegistry);
+    boost::filesystem::file_status dirStatus = boost::filesystem::status(wineDriveC);
+    if(!boost::filesystem::is_regular_file(fileStatus) || !boost::filesystem::is_directory(dirStatus))
+    {
+        return boost::filesystem::path("");
+    }
+    
+    
+    boost::filesystem::ifstream file(wineDefaultRegistry);
+    bool isRegEntry = false;
+    std::string line;
+    
+    while (std::getline(file, line))
+    {
+        if(!line.empty() && line[0] == '[') // we found an entry
+        {
+            std::string regkey = line.substr(1, line.find(']')-1);
+            if( regkey.compare("SOFTWARE\\\\Wow6432Node\\\\Bethesda Softworks\\\\Morrowind") == 0
+             || regkey.compare("SOFTWARE\\\\Bethesda Softworks\\\\Morrowind") == 0 )
+            {
+                isRegEntry = true;
+            }
+        }
+        else if(isRegEntry)
+        {
+            if(line.empty() || line[0] != '"') // empty line means new registry key
+            {
+                break;
+            }
+            std::string key = line.substr(1, line.find('"', 1)-1);
+            if(key.compare("Installed Path") == 0) {
+                std::string::size_type pos, startPos;
+                
+                startPos = line.find('=')+2;
+                std::string installPath = line.substr(startPos, line.find('"', startPos+1)-startPos);
+                installPath.replace(0, 2, wineDriveC.string());
+                
+                pos = -1;
+                do
+                {
+                    pos = installPath.find("\\\\", pos+1);
+                    if(pos == std::string::npos)
+                    {
+                        break;
+                    }
+                    
+                    installPath.replace(pos, 2, "/");
+                } while(true);
+                
+                return boost::filesystem::path(installPath);
+            }
+        }
+    }
+    
+    return boost::filesystem::path("");
 }
 
 } /* namespace Files */

components/files/linuxpath.hpp

@@ -81,6 +81,11 @@ struct LinuxPath
      */
     boost::filesystem::path getLocalDataPath() const;
 
+    /**
+     * \brief Gets the path of the installed Morrowind version if there is one.
+     *
+     * \return boost::filesystem::path
+     */
     boost::filesystem::path getInstallPath() const;
 };
 

components/files/windowspath.cpp

@@ -5,7 +5,10 @@
 #include <cstring>
 
 #include <windows.h>
-#include <shobj.h>
+#include <shlobj.h>
+#include <Shlwapi.h>
+
+#pragma comment(lib, "Shlwapi.lib")
 
 namespace Files
 {
@@ -76,9 +79,36 @@ boost::filesystem::path WindowsPath::getLocalDataPath() const
     return boost::filesystem::path("./data/");
 }
 
-boost::filesystem::path WindowsPath::getInstallPath() const;
+boost::filesystem::path WindowsPath::getInstallPath() const
 {
-    return boost::filesystem::path("./");
+    boost::filesystem::path installPath("");
+
+    HKEY hKey;
+
+    BOOL f64 = FALSE;
+    LPCTSTR regkey;
+    if (IsWow64Process(GetCurrentProcess(), &f64) && f64)
+    {
+        regkey = "SOFTWARE\\Wow6432Node\\Bethesda Softworks\\Morrowind";
+    }
+    else
+    {
+        regkey = "SOFTWARE\\Bethesda Softworks\\Morrowind";
+    }
+
+    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT(regkey), 0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
+    {
+        //Key existed, let's try to read the install dir
+        std::vector<char> buf(512);
+        int len = 512;
+
+        if (RegQueryValueEx(hKey, TEXT("Installed Path"), NULL, NULL, (LPBYTE)&buf[0], (LPDWORD)&len) == ERROR_SUCCESS)
+        {
+            installPath = &buf[0];
+        }
+    }
+
+    return installPath;
 }
 
 } /* namespace Files */

components/files/windowspath.hpp

@@ -82,6 +82,11 @@ struct WindowsPath
      */
     boost::filesystem::path getLocalDataPath() const;
 
+    /**
+     * \brief Gets the path of the installed Morrowind version if there is one.
+     *
+     * \return boost::filesystem::path
+     */
     boost::filesystem::path getInstallPath() const;
 };