Fixed display problem with percent complete messages

svn path=/trunk/; revision=895

AUTHORS

@@ -12,6 +12,7 @@ not an invitation to misrepresent who contributed to GNU GParted.
 We need to keep track of copyright (see the Maintainer HOWTO on www.gnu.org).
 
 Curtis Gedak		<gedakc@users.sourceforge.net>
+	* Wrote Utils::cleanup_cursor() function
 	* Rewrote get_label functionality for hfs
 	* Wrote create, get_label, and check_repair functionality for hfs+
 	* Wrote get_label functionality for fat16 and fat32 filesystems  

ChangeLog

@@ -1,3 +1,12 @@
+2008-09-04  Curtis Gedak  <gedakc@gmail.com>
+
+	* include/Utils.h,
+	  src/Utils.cc: Fixed display problem with percent complete messages.
+	  - Some commands use cursor repositioning to display progress.
+	    This cursoring does not display well within the tracking of
+	    gparted details.  A newly added function will cleanup the output.
+	  - Closes GParted bug #532574
+
 2008-09-01  Curtis Gedak  <gedakc@gmail.com>
 
 	* COPYING-DOCS: Added new file containing GFDL 1.2 license

include/Utils.h

@@ -140,6 +140,7 @@ public:
                     const char drive_letter, const Glib::ustring & device_path ) ;
 	static Glib::ustring delete_mtoolsrc_file( const char file_name[] ) ;
 	static Glib::ustring trim( const Glib::ustring & src, const Glib::ustring & c = " \t\r\n" ) ;
+	static Glib::ustring cleanup_cursor( const Glib::ustring & text ) ;
 
 };
 

src/Utils.cc

@@ -254,7 +254,7 @@ int Utils::execute_command( const Glib::ustring & command,
 		 return -1 ;
 	}
 
-	output = std_out ;
+	output = Utils::cleanup_cursor( std_out ) ;
 	error = std_error ;
 	
 	return exit_status ;
@@ -331,4 +331,29 @@ Glib::ustring Utils::trim( const Glib::ustring & src, const Glib::ustring & c /*
 	return src.substr(p1, (p2-p1)+1);
 }
 
+Glib::ustring Utils::cleanup_cursor( const Glib::ustring & text )
+{
+	//Clean up text for commands that use cursoring to display progress.
+	Glib::ustring str = text;
+	//remove backspace '\b' and delete previous character.  Used in mke2fs output.
+	for ( unsigned int index = str .find( "\b" ) ; index < str .length() ; index = str .find( "\b" ) ) {
+		if ( index > 0 )
+			str .erase( index - 1, 2 ) ;
+		else
+			str .erase( index, 1 ) ;
+	}
+	
+	//remove carriage return and line up to previous line feed.  Used in ntfsclone output.
+	//NOTE:  Normal linux line end is line feed.  DOS uses CR + LF.
+	for ( unsigned int index1 = str .find( "\r") ; index1 < str .length() ; index1 = str .find( "\r" ) ) {
+		if ( str .at(index1 + 1) != '\n') { //Only process if next character is not a LF
+			unsigned int index2 = str .rfind( "\n", index1 ) ;
+			if ( index2 <= index1 )
+				str .erase( index2 + 1, index1 - index2 ) ;
+		}
+	}
+	return str;
+}
+
+
 } //GParted..