prevent crasher when visual_disks is empty. load devices at startup on

* src/FrameVisualDisk.cc: prevent crasher when visual_disks is empty.
* include/Win_GParted.h,
  src/Win_GParted.cc: load devices at startup on signal_show instead
  of dispatching it from the c'tor.
  Also did some cleanups in the behaviour of opening and closing of
  the operationslist.

ChangeLog

@@ -1,3 +1,12 @@
+2006-02-22 Bart Hakvoort <hakvoort@cvs.gnome.org>
+
+	* src/FrameVisualDisk.cc: prevent crasher when visual_disks is empty.
+	* include/Win_GParted.h,
+	  src/Win_GParted.cc: load devices at startup on signal_show instead
+	  of dispatching it from the c'tor.
+	  Also did some cleanups in the behaviour of opening and closing of
+	  the operationslist.
+
 2006-02-20 Bart Hakvoort <hakvoort@cvs.gnome.org>
 
 	* include/GParted_Core.h,

include/Win_GParted.h

@@ -106,11 +106,13 @@ private:
 	
 	void allow_undo( bool b )	{ 
 		toolbar_main .get_nth_item( 8 ) ->set_sensitive( b ); 
-		( (Gtk::CheckMenuItem *) & menubar_main .items( ) [ 1 ] .get_submenu( ) ->items( ) [ 0 ] ) ->set_sensitive( b ) ; }
+		static_cast<Gtk::CheckMenuItem *>( & menubar_main .items()[ 1 ] .get_submenu() ->items()[ 0 ] )
+			->set_sensitive( b ) ; }
 		
 	void allow_apply( bool b )	{ 
 		toolbar_main .get_nth_item( 9 ) ->set_sensitive( b ); 
-		( (Gtk::CheckMenuItem *) & menubar_main .items( ) [ 1 ] .get_submenu( ) ->items( ) [ 1 ] ) ->set_sensitive( b ) ; }
+		static_cast<Gtk::CheckMenuItem *>( & menubar_main .items()[ 1 ] .get_submenu() ->items()[ 1 ] )
+			->set_sensitive( b ) ; }
 		
 	//threads..
 	void thread_refresh_devices() ;
@@ -123,6 +125,7 @@ private:
 	void clear_operationslist() ;
 	void combo_devices_changed();
 	void radio_devices_changed( unsigned int item ) ;
+	void on_signal_show() ;
 		
 	void menu_gparted_refresh_devices();
 	void menu_gparted_filesystems();
@@ -222,6 +225,7 @@ private:
 	unsigned short primary_count ;//primary_count checks for max. of 4 pimary partitions
 	unsigned short new_count;//new_count keeps track of the new created partitions
 	FS fs ;
+	bool OPERATIONSLIST_OPEN ;
 									
 	GParted_Core gparted_core ;
 	GParted::Device *temp_device ;
@@ -229,8 +233,6 @@ private:
 					
 	//stuff for progress overview and pulsebar
 	Glib::Thread *thread ;
-	Glib::Dispatcher dispatcher;
-	sigc::connection conn ; 
 	bool pulse ;
 };
 

src/FrameVisualDisk.cc

@@ -374,7 +374,7 @@ void FrameVisualDisk::on_resize( Gtk::Allocation & allocation )
 	while ( TOTAL <= 0 && MIN_SIZE > 0 ) ; 
 	
 	//due to rounding a few px may be lost (max. 2), lets add these to the last partition.
-	if ( allocation .get_width() > calced )
+	if ( allocation .get_width() > calced && visual_partitions .size() )
 		visual_partitions .back() .length += ( allocation .get_width() - calced ) ;
 	
 	calc_position_and_height( visual_partitions, 0, 0 ) ;

src/Win_GParted.cc

@@ -29,9 +29,6 @@
 #include <gtkmm/radiobuttongroup.h>
 #include <gtkmm/main.h>
 
-#include <cerrno>
-#include <sys/swap.h>
-
 namespace GParted
 {
 	
@@ -42,6 +39,7 @@ Win_GParted::Win_GParted( const std::vector<Glib::ustring> & user_devices )
 	new_count = 1;
 	current_device = 0 ;
 	pulse = false ; 
+	OPERATIONSLIST_OPEN = true ;
 	gparted_core .set_user_devices( user_devices ) ;
 	
 	//==== GUI =========================
@@ -60,6 +58,8 @@ Win_GParted::Win_GParted( const std::vector<Glib::ustring> & user_devices )
 	//Pack the main box
 	this ->add( vbox_main ); 
 	
+	this ->signal_show() .connect( sigc::mem_fun(*this, &Win_GParted::on_signal_show) );
+	
 	//menubar....
 	init_menubar() ;
 	vbox_main .pack_start( menubar_main, Gtk::PACK_SHRINK );
@@ -95,12 +95,8 @@ Win_GParted::Win_GParted( const std::vector<Glib::ustring> & user_devices )
 	
 	this ->show_all_children();
 	
-	//make sure harddisk information and operationlist are closed..
+	//make sure harddisk information is closed..
 	hpaned_main .get_child1() ->hide() ;
-	close_operationslist( ) ;
-	
-	conn = dispatcher .connect( sigc::mem_fun( *this, &Win_GParted::menu_gparted_refresh_devices ) );
-	dispatcher() ;
 }
 
 void Win_GParted::init_menubar() 
@@ -489,7 +485,6 @@ void Win_GParted::show_pulsebar( const Glib::ustring & status_message )
 	}
 	
 	thread ->join() ;
-	conn .disconnect() ;
 	
 	pulsebar .hide();
 	statusbar .pop() ;
@@ -755,39 +750,42 @@ void Win_GParted::set_valid_operations()
 
 void Win_GParted::open_operationslist() 
 {
+	if ( ! OPERATIONSLIST_OPEN )
+	{
+		OPERATIONSLIST_OPEN = true ;
 		hbox_operations .show() ;
-	int x,y; this ->get_size( x, y );
-	y -= 300;
 	
-	for ( int t = vpaned_main .get_position( ) ; t > y ; t-=5 )
+		for ( int t = vpaned_main .get_height() ; t > ( vpaned_main .get_height() - 100 ) ; t -= 5 )
 		{
 			vpaned_main .set_position( t );
 			while ( Gtk::Main::events_pending() ) 
 				Gtk::Main::iteration() ;
 		}
 
-	( (Gtk::CheckMenuItem *) & menubar_main .items( ) [ 2 ] .get_submenu( ) ->items( ) [ 1 ] ) ->set_active( true ) ;
+		static_cast<Gtk::CheckMenuItem *>( & menubar_main .items()[ 2 ] .get_submenu() ->items()[ 1 ] )
+			->set_active( true ) ;
+	}
 }
 
 void Win_GParted::close_operationslist() 
 {
-//FIXME: when started like 'gparted bla' it wil crash in this function
-//most likely this has something to do with the removal of the legend which rendered
-//the '210' incorrect. This static numbering sucks anyway, so i should find a way to open and
-//close the operationslist without these static numbers. See also open_operationslist()
-	int x,y; this ->get_size( x, y );
-	y -= 210 ; //height of whole app - menubar - visualdisk - statusbar ....
-	for ( int t = vpaned_main .get_position() ; t < y ; t+=5 )
+	if ( OPERATIONSLIST_OPEN )
+	{
+		OPERATIONSLIST_OPEN = false ;
+		
+		for ( int t = vpaned_main .get_position() ; t < vpaned_main .get_height() ; t += 5 )
 		{
 			vpaned_main .set_position( t ) ;
+		
 			while ( Gtk::Main::events_pending() )
 				Gtk::Main::iteration();
 		}
 		
 		hbox_operations .hide() ;
-	static_cast<Gtk::CheckMenuItem *>( 
-		& menubar_main .items()[ 2 ] .get_submenu() ->
-	  	items()[ 1 ] ) ->set_active( false ) ;
+
+		static_cast<Gtk::CheckMenuItem *>( & menubar_main .items()[ 2 ] .get_submenu() ->items()[ 1 ] )
+			->set_active( false ) ;
+	}
 }
 
 void Win_GParted::clear_operationslist() 
@@ -825,6 +823,14 @@ void Win_GParted::radio_devices_changed( unsigned int item )
 	}
 }
 
+void Win_GParted::on_signal_show()
+{
+	vpaned_main .set_position( vpaned_main .get_height() ) ;
+	close_operationslist() ;
+
+	menu_gparted_refresh_devices() ;
+}
+
 void Win_GParted::thread_refresh_devices() 
 {
 	gparted_core .get_devices( devices ) ;