Added GetDefaultSaveDir(suffix) which fetches the default "Application

Data" path for the current user from the registry, appends the suffix,
creates the subdirectory if it doesn't exist, then returns a string from
the heap.
This path is the new default "savedir" location on Windows. Tested on
98/2K/XP.
Changed code that sets the pwd to the directory containing the executable.
Originally for BEOS only, now working and enabled for Windows also.

src/tuxpaint.c

@@ -372,7 +372,7 @@ static void win32_perror(const char * const str)
 #define NOMINMAX
 #include "Shlwapi.h"
 #define strcasestr StrStrI
-#endif
+#endif /* WIN32 */
 
 
 #ifdef __GNUC__
@@ -7342,20 +7342,31 @@ static void setup(int argc, char * argv[])
   SDL_Surface * tmp_imgcurup, * tmp_imgcurdown;
 
 
-#ifdef __BEOS__
+#if defined(__BEOS__) || defined(WIN32)
   /* if run from gui, like OpenTracker in BeOS or Explorer in Windows,
      find path from which binary was run and change dir to it
      so all files will be local :) */
   /* UPDATE (2004.10.06): Since SDL 1.2.7 SDL sets that path correctly,
      so this code wouldn't be needed if SDL was init before anything else,
      (just basic init, window shouldn't be needed). */
+  /* UPDATE (2005 July 19): Enable and make work on Windows. Makes testing
+     with MINGW/MSYS easier */
 
   if (argc && argv[0])
     {
-      char * slash = strrchr(argv[0], '/');
+      char *app_path = strdup(argv[0]);
+      char *slash = strrchr(app_path, '/');
+
+      if (!slash)
+      {
+        slash = strrchr(app_path, '\\');
+      }
+      if (slash)
+      {
         *(slash + 1) = '\0';
-      chdir(argv[0]);
-      *(slash + 1) = '/';
+        chdir(app_path);
+      }
+      free(app_path);
     }
 #endif
 
@@ -7400,7 +7411,7 @@ static void setup(int argc, char * argv[])
 
 
 #ifdef WIN32
-  savedir = strdup("userdata");
+  savedir = GetDefaultSaveDir("TuxPaint");
 #elif __BEOS__
   savedir = strdup("./userdata");
 #else
@@ -11600,8 +11611,9 @@ static char * get_fname(const char * const name)
      and where the "current_id.txt" file is saved */
 
 #ifdef WIN32
-  /* Windows predefines "savedir" as "userdata", though it may get
-     overridden with "--savedir" option */
+  /* Windows predefines "savedir" as:
+     "C:\Documents and Settings\%USERNAME%\Application Data\TuxPaint"
+     though it may get overridden with "--savedir" option */
 
   snprintf(f, sizeof(f), "%s/%s", savedir, name);
 

src/win32_print.c

@@ -24,6 +24,7 @@
 /*                - prints using 24-bit (not 32-bit) bitmap */
 
 #include <windows.h>
+#include <direct.h>
 #include "SDL_syswm.h"
 #include "win32_print.h"
 
@@ -470,3 +471,65 @@ error:
 
   return res;
 }
+
+/*
+  Read access to Windows Registry
+*/
+static HRESULT ReadRegistry(const char *key, const char *option, char *value, int size)
+{
+  LONG	res;
+  HKEY	hKey = NULL;
+
+  res = RegOpenKeyEx(HKEY_CURRENT_USER, key, 0, KEY_READ, &hKey);
+  if (res != ERROR_SUCCESS)
+    goto err_exit;
+  res = RegQueryValueEx(hKey, option, NULL, NULL, (LPBYTE)value, (LPDWORD)&size);
+  if (res != ERROR_SUCCESS)
+    goto err_exit;
+  res = ERROR_SUCCESS;
+
+err_exit:
+  if (hKey) RegCloseKey(hKey);
+  return HRESULT_FROM_WIN32(res);
+}
+
+/*
+  Removes a single '\' or '/' from end of path 
+*/
+static char *remove_slash(char *path)
+{
+  int len = strlen(path);
+
+  if (!len)
+    return path;
+
+  if (path[len-1] == '/' || path[len-1] == '\\')
+    path[len-1] = 0;
+
+  return path;
+}
+
+/*
+  Returns heap string containing default application data path.
+  Creates suffix subdirectory (only one level).
+  E.g. C:\Documents and Settings\jfp\Application Data\suffix
+*/
+char *GetDefaultSaveDir(const char *suffix)
+{
+  char          prefix[MAX_PATH];
+  char          path[2*MAX_PATH];
+  const char   *key    = "Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders";
+  const char   *option = "AppData";
+  HRESULT hr = S_OK;
+
+  if (SUCCEEDED(hr = ReadRegistry(key, option, prefix, sizeof(prefix))))
+  {
+    remove_slash(prefix);
+    snprintf(path, sizeof(path), "%s/%s", prefix, suffix);
+    _mkdir(path);
+    return strdup(path);
+  }
+  return strdup("userdata");
+}
+
+

src/win32_print.h

@@ -19,4 +19,7 @@ extern const char *SurfacePrint( SDL_Surface *surf,
 			         int showdialog );
 extern int IsPrinterAvailable( void );
 
+/* additional windows functions requiring <windows.h> */
+extern char *GetDefaultSaveDir(const char *suffix);
+
 #endif