Export the base directory of the open project

Project -baseDirectoryPath returns the absolute path to the directory from
which the .qpr file was loaded.

tools/Forge/Bundles/MapEdit/Project.h

@@ -89,6 +89,7 @@ extern id  project_i;
 //
 //  methods to query the project file
 //
+- (NSString *) baseDirectoryPath;
 - (NSString *) getMapDirectory;
 - (NSString *) getFinalMapDirectory;
 - (NSString *) getProgDirectory;

tools/Forge/Bundles/MapEdit/Project.m

@@ -344,6 +344,11 @@ id  project_i;
 	return nil;
 }
 
+- (NSString *) baseDirectoryPath
+{
+	return basepathinfo_i;
+}
+
 - (NSString *) getMapDirectory
 {
 	return path_mapdirectory;

tools/Forge/Bundles/MapEdit/TexturePalette.m

@@ -8,6 +8,7 @@
 
 #include "TexturePalette.h"
 #include "Preferences.h"
+#include "Project.h"
 #include "Map.h"
 #include "Entity.h"
 #include "QuakeEd.h"
@@ -191,7 +192,7 @@ TEX_InitFromWad (const char *path)
 
 	start = Sys_DoubleTime ();
 
-	newpath = [[preferences_i getProjectPath] cString];
+	newpath = [[project_i baseDirectoryPath] cString];
 	newpath = va ("%s%s%s", newpath, (newpath[0] ? "/" : ""), path);
 
 	// free any textures