Change cache file location to user's TDE cache directory rather than user's root directory.

This resolves bug report 1259.

src/qt_qt_wrapper.cpp

@@ -23,6 +23,8 @@
 #include <tdecmdlineargs.h>
 #include <tdeaboutdata.h>
 #include <tdeconfig.h>
+#include <kglobal.h>
+#include <kstandarddirs.h>
 
 #undef signals
 #include <gdk/gdkx.h>
@@ -2022,7 +2024,7 @@ void setRcProperties(GtkRcStyle* rc_style, int forceRecreate)
 	// In order to speed it up, we can store the results in a file, along with the name of icon
 	// theme and style.  This file can then be regenerated when the icon theme or style change.
 	
-	TQString cacheFilePath = TQDir::homeDirPath() + "/.gtk_qt_engine_rc";
+	TQString cacheFilePath = TDEGlobal::dirs()->saveLocation("cache")+"/gtk_qt_engine_rc";
 	TQFile cacheFile(cacheFilePath);
 	TQTextStream stream;