]> git.lyx.org Git - features.git/blobdiff - src/frontends/xforms/FormPreferences.C
patch from Dekel + some simplifications
[features.git] / src / frontends / xforms / FormPreferences.C
index 4e5c5cc468a7c814d929d9f1416eb666c9b998ef..6ea7d22e4264c313d4294b000449d4ec4317874b 100644 (file)
@@ -10,8 +10,6 @@
 #pragma implementation
 #endif
 
-#include <vector>
-
 #include "FormPreferences.h"
 #include "form_preferences.h"
 #include "input_validators.h"
 #include "lyxfunc.h"
 #include "Dialogs.h"
 #include "lyxrc.h"
+#include "combox.h"
 #include "debug.h"
 #include "support/FileInfo.h"
 #include "support/filetools.h"
 #include "lyx_gui_misc.h"
+#include "xform_macros.h"
 
 #ifdef SIGC_CXX_NAMESPACES
 using SigC::slot;
@@ -33,14 +33,14 @@ using std::find;
 using std::vector;
 
 extern Languages languages;
-static vector<string> languageNames;
 
 FormPreferences::FormPreferences(LyXView * lv, Dialogs * d)
        : FormBaseBI(lv, d, _("Preferences"), new PreferencesPolicy),
          dialog_(0), outputs_tab_(0), look_n_feel_tab_(0), inputs_tab_(0),
          usage_tab_(0), colours_(0), inputs_misc_(0), interface_(0),
          language_(0), lnf_misc_(0), outputs_misc_(0), paths_(0), printer_(0),
-         screen_fonts_(0), spellchecker_(0)
+         screen_fonts_(0), spellchecker_(0),
+         combo_default_lang(0), combo_kbmap_1(0), combo_kbmap_2(0)
 {
        // let the dialog be shown
        // This is a permanent connection so we won't bother
@@ -51,7 +51,10 @@ FormPreferences::FormPreferences(LyXView * lv, Dialogs * d)
 
 FormPreferences::~FormPreferences()
 {
-       delete dialog_;
+       delete combo_default_lang;
+       delete combo_kbmap_1;
+       delete combo_kbmap_2;
+
        delete look_n_feel_tab_;
        delete inputs_tab_;
        delete outputs_tab_;
@@ -66,6 +69,10 @@ FormPreferences::~FormPreferences()
        delete printer_;
        delete screen_fonts_;
        delete spellchecker_;
+
+       // Must be last to be deleted, or we'll get a SIGSEGV.
+       // Something to do with the Timer mechanism.
+       delete dialog_;
 }
 
 
@@ -220,21 +227,28 @@ void FormPreferences::apply()
 }
 
 
-void FormPreferences::update()
+void FormPreferences::feedback( FL_OBJECT * ob )
 {
-       if (!dialog_) return;
-    
-       // read lyxrc entries
-       updateColours();
-       updateInputsMisc();
-       updateInterface();
-       updateLanguage();
-       updateLnFmisc();
-       updateOutputsMisc();
-       updatePaths();
-       updatePrinter();
-       updateScreenFonts();
-       updateSpellChecker();
+       if( ob->form->fdui == colours_ )
+               feedbackColours( ob );
+       if( ob->form->fdui == inputs_misc_ )
+               feedbackInputsMisc( ob );
+       if( ob->form->fdui == interface_ )
+               feedbackInterface( ob );
+       if( ob->form->fdui == language_ )
+               feedbackLanguage( ob );
+       if( ob->form->fdui == lnf_misc_ )
+               feedbackLnFmisc( ob );
+       if( ob->form->fdui == outputs_misc_ )
+               feedbackOutputsMisc( ob );
+       if( ob->form->fdui == paths_ )
+               feedbackPaths( ob );
+       if( ob->form->fdui == printer_ )
+               feedbackPrinter( ob );
+       if( ob->form->fdui == screen_fonts_ )
+               feedbackScreenFonts( ob );
+       if( ob->form->fdui == spellchecker_ )
+               feedbackSpellChecker( ob );
 }
 
 
@@ -242,64 +256,33 @@ bool FormPreferences::input(FL_OBJECT * ob, long data)
 {
        bool activate = true;
 
-       // Remove any existing messages
-       fl_set_object_label(dialog_->text_warning, " ");
-
        // whatever checks you need to ensure the user hasn't entered
        // some totally ridiculous value somewhere.  Change activate to suit.
        // comments before each test describe what is _valid_
 
        State cb = static_cast<State>( data );
        switch( cb ) {
-       case COLOURS:
-               feedbackColours( ob );
-               break;
-
-       case INPUTSMISC:
-               feedbackInputsMisc( ob );
-               break;
-
-       case INTERFACE:
-               feedbackInterface( ob );
-               break;
-
        case LANGUAGE:
-               feedbackLanguage( ob );
                if( ! inputLanguage( ob ) )
                        activate = false;
                break;
 
-       case LOOKNFEELMISC:
-               feedbackLnFmisc( ob );
-               break;
-
-       case OUTPUTSMISC:
-               feedbackOutputsMisc( ob );
-               break;
-
        case PATHS:
-               feedbackPaths( ob );
                if( ! inputPaths( ob ) )
                        activate = false;
                break;
 
-       case PRINTER:
-               feedbackPrinter( ob );
-               break;
-
        case SCREENFONTS:
-               feedbackScreenFonts( ob );
                if( ! inputScreenFonts() )
                        activate = false;
                break;
 
        case SPELLCHECKER:
-               feedbackSpellChecker( ob );
                if( ! inputSpellChecker( ob ) )
                        activate = false;
                break;
 
-       case TABS:
+       default:
                break;
        }
 
@@ -307,6 +290,24 @@ bool FormPreferences::input(FL_OBJECT * ob, long data)
 }
 
 
+void FormPreferences::update()
+{
+       if (!dialog_) return;
+    
+       // read lyxrc entries
+       updateColours();
+       updateInputsMisc();
+       updateInterface();
+       updateLanguage();
+       updateLnFmisc();
+       updateOutputsMisc();
+       updatePaths();
+       updatePrinter();
+       updateScreenFonts();
+       updateSpellChecker();
+}
+
+
 void FormPreferences::applyColours()
 {
 }
@@ -340,6 +341,13 @@ void FormPreferences::buildInputsMisc()
 
        fl_set_input_return(inputs_misc_->input_date_format,
                            FL_RETURN_CHANGED);
+
+       // set up the feedback mechanism
+       fl_addto_form(inputs_misc_->form);
+
+       setPostHandler( inputs_misc_->input_date_format );
+
+       fl_end_form();
 }
 
 
@@ -347,9 +355,8 @@ void FormPreferences::feedbackInputsMisc( FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == inputs_misc_->input_date_format ) {
-               str = N_("This accepts the normal strftime formats; see man strftime for full details.\nE.g.\"%A, %e. %B %Y\".");
-       }
+       if( ob == inputs_misc_->input_date_format )
+               str = lyxrc.getFeedback( LyXRC::RC_DATE_INSERT_FORMAT );
 
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -393,26 +400,40 @@ void FormPreferences::buildInterface()
        fl_deactivate_object(interface_->button_ui_file_browse);
        fl_set_object_lcol(interface_->button_bind_file_browse, FL_INACTIVE);
        fl_set_object_lcol(interface_->button_ui_file_browse, FL_INACTIVE);
+
+       // set up the feedback mechanism
+       fl_addto_form(interface_->form);
+
+       setPostHandler( interface_->input_popup_font );
+       setPostHandler( interface_->input_menu_font );
+       setPostHandler( interface_->input_popup_encoding );
+       setPostHandler( interface_->input_bind_file );
+       setPostHandler( interface_->button_bind_file_browse );
+       setPostHandler( interface_->input_ui_file );
+       setPostHandler( interface_->button_ui_file_browse );
+       setPostHandler( interface_->check_override_x_dead_keys );
+
+       fl_end_form();
 }
 
 
+
 void FormPreferences::feedbackInterface( FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == interface_->input_popup_font ) {
-               str = N_("The font for popups.");
-       } else if ( ob == interface_->input_menu_font ) {
-               str = N_("The font for menus (and groups titles in popups).");
-       } else if ( ob == interface_->input_popup_encoding ) {
-               str = N_("The norm for the menu/popups fonts.");
-       } else if ( ob == interface_->input_bind_file ) {
-               str = N_("Keybindings file. Can either specify an absolute path,\nor LyX will look in its global and local bind/ directories.");
-       } else if ( ob == interface_->input_ui_file ) {
-               str = N_("The  UI (user interface) file. Can either specify an absolute path,\nor LyX will look in its global and local ui/ directories.");
-       } else if ( ob == interface_->check_override_x_dead_keys ) {
-               str = N_("Set to true for LyX to take over the handling of the dead keys\n(a.k.a accent keys) that may be defined for your keyboard.");
-       }
+       if( ob == interface_->input_popup_font )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_POPUP );
+       else if ( ob == interface_->input_menu_font )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_MENU );
+       else if ( ob == interface_->input_popup_encoding )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_ENCODING_MENU );
+       else if ( ob == interface_->input_bind_file )
+               str = lyxrc.getFeedback( LyXRC::RC_BINDFILE );
+       else if ( ob == interface_->input_ui_file )
+               str = lyxrc.getFeedback( LyXRC::RC_UIFILE );
+       else if ( ob == interface_->check_override_x_dead_keys )
+               str = lyxrc.getFeedback( LyXRC::RC_OVERRIDE_X_DEADKEYS );
 
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -438,19 +459,14 @@ void FormPreferences::updateInterface()
 
 void FormPreferences::applyLanguage()
 {
-       vector<string>::size_type choice =
-               fl_get_choice(language_->choice_default_lang) - 1;
-       lyxrc.default_language = languageNames[choice];
+       lyxrc.default_language = combo_default_lang->getline();
 
        int button = fl_get_button(language_->check_use_kbmap);
        lyxrc.use_kbmap = static_cast<bool>(button);
 
        if( button ) {
-           choice = fl_get_choice(language_->choice_kbmap_1) - 1;
-           lyxrc.primary_kbmap = languageNames[choice];
-
-           choice = fl_get_choice(language_->choice_kbmap_2) - 1;
-           lyxrc.secondary_kbmap = languageNames[choice];
+           lyxrc.primary_kbmap = combo_kbmap_1->getline();
+           lyxrc.secondary_kbmap = combo_kbmap_2->getline();
        }
        
        button = fl_get_button(language_->check_rtl_support);
@@ -479,24 +495,62 @@ void FormPreferences::buildLanguage()
        fl_set_input_return(language_->input_command_begin, FL_RETURN_CHANGED);
        fl_set_input_return(language_->input_command_end, FL_RETURN_CHANGED);
 
-       // Only do this the first time buildLanguage() is called.
-       if( languageNames.empty() ) {
-               for( Languages::const_iterator lang = languages.begin();
-                    lang != languages.end(); lang++ ) {
-                       languageNames.push_back( (*lang).second.lang() );
-               }
-       }
+       // The default_language is a combo-box and has to be inserted manually
+       fl_addto_form(language_->form);
 
-       string names = " " + languageNames.front();
-       for( vector<string>::const_iterator lang = languageNames.begin();
-            lang != languageNames.end(); ++lang ) {
-               names += " | " + (*lang);
-       }
-       names += " ";
+       FL_OBJECT * obj = language_->choice_default_lang;
+       combo_default_lang = new Combox(FL_COMBOX_DROPLIST);
+       combo_default_lang->add(obj->x, obj->y, obj->w, obj->h, 400);
+       combo_default_lang->shortcut("#L",1);
+       combo_default_lang->setcallback(ComboLanguageCB, this);
+       addLanguages( *combo_default_lang );
        
-       fl_addto_choice(language_->choice_default_lang, names.c_str());
-       fl_addto_choice(language_->choice_kbmap_1, names.c_str());
-       fl_addto_choice(language_->choice_kbmap_2, names.c_str());
+       // ditto kbmap_1
+       obj = language_->choice_kbmap_1;
+       combo_kbmap_1 = new Combox(FL_COMBOX_DROPLIST);
+       combo_kbmap_1->add(obj->x, obj->y, obj->w, obj->h, 400);
+       combo_kbmap_1->shortcut("#1",1);
+       combo_kbmap_1->setcallback(ComboLanguageCB, this);
+       addLanguages( *combo_kbmap_1 );
+       
+       // ditto kbmap_2
+       obj = language_->choice_kbmap_2;
+       combo_kbmap_2 = new Combox(FL_COMBOX_DROPLIST);
+       combo_kbmap_2->add(obj->x, obj->y, obj->w, obj->h, 400);
+       combo_kbmap_2->shortcut("#2",1);
+       combo_kbmap_2->setcallback(ComboLanguageCB, this);
+       addLanguages( *combo_kbmap_2 );
+
+       fl_end_form();
+
+       // set up the feedback mechanism
+       fl_addto_form(language_->form);
+
+       setPostHandler( language_->input_package );
+       setPostHandler( language_->check_use_kbmap );
+
+       // these 3 should be replaced by the appropriate combox call
+       // setPostHandler( reinterpret_cast<FL_OBJECT *>(combo_default_lang) );
+       // setPostHandler( reinterpret_cast<FL_OBJECT *>(combo_kbmap_1) );
+       // setPostHandler( reinterpret_cast<FL_OBJECT *>(combo_kbmap_2) );
+
+       setPostHandler( language_->check_rtl_support );
+       setPostHandler( language_->check_mark_foreign );
+       setPostHandler( language_->check_auto_begin );
+       setPostHandler( language_->check_auto_end );
+       setPostHandler( language_->input_command_begin );
+       setPostHandler( language_->input_command_end );
+
+       fl_end_form();
+}
+
+
+void FormPreferences::addLanguages( Combox & combo )
+{
+       for(Languages::const_iterator cit = languages.begin();
+           cit != languages.end(); cit++) {
+               combo.addto((*cit).second.lang());
+       }
 }
 
 
@@ -504,27 +558,28 @@ void FormPreferences::feedbackLanguage( FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == language_->choice_default_lang ) {
-               str = N_("New documents will be assigned this language.");
-       } else if( ob == language_->check_use_kbmap
-                  || ob == language_->choice_kbmap_1
-                  || ob == language_->choice_kbmap_2 ) {
-               str = N_("Use this to set the correct mapping file for your keyboard.\nYou'll need this if you for instance want to type German documents\non an American keyboard.");
-       } else if( ob == language_->check_rtl_support ) {
-               str = N_("Use to enable support of right-to-left languages (e.g. Hebrew, Arabic).");
-       } else if( ob == language_->check_auto_begin ) {
-               str = N_("Use if a language switching command is needed at the beginning\nof the document.");
-       } else if( ob == language_->check_auto_end ) {
-               str = N_("Use if a language switching command is needed at the end\nof the document.");
-       } else if( ob == language_->check_mark_foreign ) {
-               str = N_("Use to control the highlighting of words with a language foreign to\nthat of the document.");
-       } else if( ob == language_->input_package ) {
-               str = N_("The latex command for loading the language package.\nE.g. \"\\usepackage{babel}\", \"\\usepackage{omega}\".");
-       } else if( ob == language_->input_command_begin ) {
-               str = N_("The latex command for changing from the language of the document\nto another language.\nE.g. \\selectlanguage{$$lang} where $$lang is substituted by the name\nof the second language.");
-       } else if( ob == language_->input_command_end ) {
-               str = N_("The latex command for changing back to the language of the document.");
-       }
+       if( reinterpret_cast<Combox const *>(ob) == combo_default_lang )
+               str = lyxrc.getFeedback( LyXRC::RC_DEFAULT_LANGUAGE );
+       else if( ob == language_->check_use_kbmap )
+               str = lyxrc.getFeedback( LyXRC::RC_KBMAP );
+       else if( reinterpret_cast<Combox const *>(ob) == combo_kbmap_1)
+               str = lyxrc.getFeedback( LyXRC::RC_KBMAP_PRIMARY );
+       else if( reinterpret_cast<Combox const *>(ob) == combo_kbmap_2 )
+               str = lyxrc.getFeedback( LyXRC::RC_KBMAP_SECONDARY );
+       else if( ob == language_->check_rtl_support )
+               str = lyxrc.getFeedback( LyXRC::RC_RTL_SUPPORT );
+       else if( ob == language_->check_auto_begin )
+               str = lyxrc.getFeedback( LyXRC::RC_LANGUAGE_AUTO_BEGIN );
+       else if( ob == language_->check_auto_end )
+               str = lyxrc.getFeedback( LyXRC::RC_LANGUAGE_AUTO_END );
+       else if( ob == language_->check_mark_foreign )
+               str = lyxrc.getFeedback( LyXRC::RC_MARK_FOREIGN_LANGUAGE );
+       else if( ob == language_->input_package )
+               str = lyxrc.getFeedback( LyXRC::RC_LANGUAGE_PACKAGE );
+       else if( ob == language_->input_command_begin )
+               str = lyxrc.getFeedback( LyXRC::RC_LANGUAGE_COMMAND_BEGIN );
+       else if( ob == language_->input_command_end )
+               str = lyxrc.getFeedback( LyXRC::RC_LANGUAGE_COMMAND_END );
 
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -534,22 +589,14 @@ void FormPreferences::feedbackLanguage( FL_OBJECT const * const ob )
 bool FormPreferences::inputLanguage( FL_OBJECT const * const ob )
 {
        bool activate = true;
-       
+
        if( !ob || ob == language_->check_use_kbmap ) {
                if( fl_get_button(language_->check_use_kbmap) ) {
-                       fl_activate_object(language_->choice_kbmap_1);
-                       fl_activate_object(language_->choice_kbmap_2);
-                       fl_set_object_lcol(language_->choice_kbmap_1,
-                                          FL_BLACK);
-                       fl_set_object_lcol(language_->choice_kbmap_2,
-                                          FL_BLACK);
+                       combo_kbmap_1->activate();
+                       combo_kbmap_2->activate();
                } else {
-                       fl_deactivate_object(language_->choice_kbmap_1);
-                       fl_deactivate_object(language_->choice_kbmap_2);
-                       fl_set_object_lcol(language_->choice_kbmap_1,
-                                          FL_INACTIVE);
-                       fl_set_object_lcol(language_->choice_kbmap_2,
-                                          FL_INACTIVE);
+                       combo_kbmap_1->deactivate();
+                       combo_kbmap_2->deactivate();
                }
        }
 
@@ -562,30 +609,15 @@ void FormPreferences::updateLanguage()
        fl_set_button(language_->check_use_kbmap,
                      lyxrc.use_kbmap);
 
-       vector<string>::iterator it =
-               find( languageNames.begin(), languageNames.end(),
-                     lyxrc.default_language );
-       int choice = 0;
-       if( it != languageNames.end() )
-               choice = static_cast<int>( it - languageNames.begin() );
-
-       fl_set_choice(language_->choice_default_lang, choice+1);
-
-       it = find( languageNames.begin(), languageNames.end(),
-                  lyxrc.primary_kbmap );
-       choice = 0;
-       if( it != languageNames.end() )
-               choice = static_cast<int>( it - languageNames.begin() );
-       
-       fl_set_choice(language_->choice_kbmap_1, choice+1);
-
-       it = find( languageNames.begin(), languageNames.end(),
-                  lyxrc.secondary_kbmap );
-       choice = 0;
-       if( it != languageNames.end() )
-               choice = static_cast<int>( it - languageNames.begin() );
+       combo_default_lang->select_text( lyxrc.default_language );
 
-       fl_set_choice(language_->choice_kbmap_2, choice+1);
+       if( lyxrc.use_kbmap ) {
+               combo_kbmap_1->select_text( lyxrc.primary_kbmap );
+               combo_kbmap_2->select_text( lyxrc.secondary_kbmap );
+       } else {
+               combo_kbmap_1->select_text( lyxrc.default_language );
+               combo_kbmap_2->select_text( lyxrc.default_language );
+       }
        
        fl_set_button(language_->check_rtl_support, lyxrc.rtl_support);
        fl_set_button(language_->check_auto_begin,  lyxrc.language_auto_begin);
@@ -632,6 +664,20 @@ void FormPreferences::buildLnFmisc()
                              FL_RETURN_CHANGED);
        fl_set_counter_return(lnf_misc_->counter_wm_jump,
                              FL_RETURN_CHANGED);
+
+       // set up the feedback mechanism
+       fl_addto_form(lnf_misc_->form);
+
+       setPostHandler( lnf_misc_->check_banner );
+       setPostHandler( lnf_misc_->check_auto_region_delete );
+       setPostHandler( lnf_misc_->check_exit_confirm );
+       setPostHandler( lnf_misc_->check_display_shortcuts );
+       setPostHandler( lnf_misc_->counter_autosave );
+       setPostHandler( lnf_misc_->check_ask_new_file );
+       setPostHandler( lnf_misc_->check_cursor_follows_scrollbar );
+       setPostHandler( lnf_misc_->counter_wm_jump );
+
+       fl_end_form();
 }
 
 
@@ -639,24 +685,23 @@ void FormPreferences::feedbackLnFmisc( FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == lnf_misc_->check_banner ) {
-               str = N_("Set to false if you don't want the startup banner.");
-       } else if( ob == lnf_misc_->check_auto_region_delete ) {
-               str = N_("Set to false if you don't want the current selection to be replaced\nautomatically by what you type.");
-       } else if( ob == lnf_misc_->check_exit_confirm ) {
-               str = N_("Sets whether LyX asks for a second confirmation to exit when you have\nchanged documents.\n(LyX will still ask to save changed documents.)");
-       } else if( ob == lnf_misc_->check_display_shortcuts ) {
-               str = N_("LyX continously displays names of last command executed,\nalong with a list of defined short-cuts for it in the minibuffer.\nSet to false if LyX seems slow.");
-       } else if( ob == lnf_misc_->check_ask_new_file ) {
-               str = N_("This sets the behaviour if you want to be asked for a filename when\ncreating a new document or wait until you save it and be asked then.");
-       } else if( ob == lnf_misc_->check_cursor_follows_scrollbar ) {
-               str = N_("LyX normally doesn't update the cursor position if you move the scrollbar.\nSet to true if you'd prefer to always have the cursor on screen.");
-       } else if( ob == lnf_misc_->counter_autosave ) {
-               str = N_("The time interval between auto-saves (in seconds).\n0 means no auto-save");
-       } else if( ob == lnf_misc_->counter_wm_jump ) {
-               str = N_("The wheel movement factor (for mice with wheels or five button mice)");
-       } 
-       
+       if( ob == lnf_misc_->check_banner )
+               str = lyxrc.getFeedback( LyXRC::RC_SHOW_BANNER );
+       else if( ob == lnf_misc_->check_auto_region_delete )
+               str = lyxrc.getFeedback( LyXRC::RC_AUTOREGIONDELETE );
+       else if( ob == lnf_misc_->check_exit_confirm )
+               str = lyxrc.getFeedback( LyXRC::RC_EXIT_CONFIRMATION );
+       else if( ob == lnf_misc_->check_display_shortcuts )
+               str = lyxrc.getFeedback( LyXRC::RC_DISPLAY_SHORTCUTS );
+       else if( ob == lnf_misc_->check_ask_new_file )
+               str = lyxrc.getFeedback( LyXRC::RC_NEW_ASK_FILENAME );
+       else if( ob == lnf_misc_->check_cursor_follows_scrollbar )
+               str = lyxrc.getFeedback( LyXRC::RC_CURSOR_FOLLOWS_SCROLLBAR );
+       else if( ob == lnf_misc_->counter_autosave )
+               str = lyxrc.getFeedback( LyXRC::RC_AUTOSAVE );
+       else if( ob == lnf_misc_->counter_wm_jump )
+               str = lyxrc.getFeedback( LyXRC::RC_WHEEL_JUMP );
+
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
 }
@@ -711,6 +756,17 @@ void FormPreferences::buildOutputsMisc()
                            FL_RETURN_CHANGED);
        fl_addto_choice(outputs_misc_->choice_default_papersize,
                        _(" default | US letter | legal | executive | A3 | A4 | A5 | B5 "));
+
+       // set up the feedback mechanism
+       fl_addto_form(outputs_misc_->form);
+
+       setPostHandler( outputs_misc_->counter_line_len );
+       setPostHandler( outputs_misc_->input_tex_encoding );
+       setPostHandler( outputs_misc_->choice_default_papersize );
+       setPostHandler( outputs_misc_->input_ascii_roff );
+       setPostHandler( outputs_misc_->input_checktex );
+
+       fl_end_form();
 }
 
 
@@ -718,18 +774,17 @@ void FormPreferences::feedbackOutputsMisc(FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == outputs_misc_->counter_line_len ) {
-               str = N_("This is the maximum line length of an exported ASCII file\n(LaTeX, SGML or plain text).");
-       } else if( ob == outputs_misc_->input_tex_encoding ) {
-               str = N_("The font encoding used for the LaTeX2e fontenc package.\nT1 is highly recommended for non-English languages.");
-       } else if( ob == outputs_misc_->input_ascii_roff ) {
-               str = N_("Use to define an external program to render tables in the ASCII output.\nE.g. \"groff -t -Tlatin1 $$FName\"  where $$FName is the input file.\nIf \"none\" is specified, an internal routine is used.");
-       } else if( ob == outputs_misc_->input_checktex ) {
-               str = N_("Define how to run chktex.\nE.g. \"chktex -n11 -n1 -n3 -n6 -n9 -22 -n25 -n30 -n38\"\nRefer to the ChkTeX documentation.");
-       } else if( ob == outputs_misc_->choice_default_papersize ) {
-               str = N_("Specify the default paper size.");
-       } 
-               
+       if( ob == outputs_misc_->counter_line_len )
+               str = lyxrc.getFeedback( LyXRC::RC_ASCII_LINELEN );
+       else if( ob == outputs_misc_->input_tex_encoding )
+               str = lyxrc.getFeedback( LyXRC::RC_FONT_ENCODING );
+       else if( ob == outputs_misc_->input_ascii_roff )
+               str = lyxrc.getFeedback( LyXRC::RC_ASCIIROFF_COMMAND );
+       else if( ob == outputs_misc_->input_checktex )
+               str = lyxrc.getFeedback( LyXRC::RC_CHKTEX_COMMAND );
+       else if( ob == outputs_misc_->choice_default_papersize )
+               str = lyxrc.getFeedback( LyXRC::RC_DEFAULT_PAPERSIZE );
+
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
 }
@@ -810,33 +865,54 @@ void FormPreferences::buildPaths()
        fl_set_object_lcol(paths_->button_lastfiles_browse, FL_INACTIVE);
        fl_set_object_lcol(paths_->button_backup_path_browse, FL_INACTIVE);
        fl_set_object_lcol(paths_->button_serverpipe_browse, FL_INACTIVE);
+
+       // set up the feedback mechanism
+       fl_addto_form(paths_->form);
+
+       setPostHandler( paths_->input_default_path );
+       setPostHandler( paths_->button_document_browse );
+       setPostHandler( paths_->counter_lastfiles );
+       setPostHandler( paths_->input_template_path );
+       setPostHandler( paths_->button_template_browse );
+       setPostHandler( paths_->check_last_files );
+       setPostHandler( paths_->button_temp_dir_browse );
+       setPostHandler( paths_->input_lastfiles );
+       setPostHandler( paths_->button_lastfiles_browse );
+       setPostHandler( paths_->check_make_backups );
+       setPostHandler( paths_->input_backup_path );
+       setPostHandler( paths_->button_backup_path_browse );
+       setPostHandler( paths_->input_serverpipe );
+       setPostHandler( paths_->button_serverpipe_browse );
+       setPostHandler( paths_->input_temp_dir );
+       setPostHandler( paths_->check_use_temp_dir );
+
+       fl_end_form();
 }
 
 
 void FormPreferences::feedbackPaths( FL_OBJECT const * const ob )
 {
        string str;
-       if( ob == paths_->input_default_path ) {
-               str = N_("The default path for your documents.");
-       } else if ( ob == paths_->input_template_path ) {
-               str = N_("The path that LyX will set when offering to choose a template.");
-       } else if ( ob == paths_->check_use_temp_dir ) {
-               str = N_("Specify to use a temporary directory to store temporary TeX output.\nThis directory is deleted when you quit LyX.");
-       } else if ( ob == paths_->input_temp_dir ) {
-               str = N_("The path that LyX will use to store temporary TeX output.");
-       } else if ( ob == paths_->check_last_files ) {
-               str = N_("Specify to check whether the lastfiles still exist.");
-       } else if ( ob == paths_->input_lastfiles ) {
-               str = N_("The file where the last-files information should be stored.");
-       } else if ( ob == paths_->counter_lastfiles ) {
-               str = N_("Maximal number of lastfiles. Up to 9 can appear in the file menu.");
-       } else if ( ob == paths_->check_make_backups ) {
-               str = N_("Set to false if you don't want LyX to create backup files.");
-       } else if ( ob == paths_->input_backup_path ) {
-               str = N_("The path for storing backup files. If it is an empty string,\nLyX will store the backup file in the same directory as the original file.");
-       } else if ( ob == paths_->input_serverpipe ) {
-               str = N_("This starts the lyxserver. The pipes get an additional extension\n\".in\" and \".out\". Only for advanced users.");
-       }
+       if( ob == paths_->input_default_path )
+               str = lyxrc.getFeedback( LyXRC::RC_DOCUMENTPATH );
+       else if ( ob == paths_->input_template_path )
+               str = lyxrc.getFeedback( LyXRC::RC_TEMPLATEPATH );
+       else if ( ob == paths_->check_use_temp_dir )
+               str = lyxrc.getFeedback( LyXRC::RC_USETEMPDIR );
+       else if ( ob == paths_->input_temp_dir )
+               str = lyxrc.getFeedback( LyXRC::RC_TEMPDIRPATH );
+       else if ( ob == paths_->check_last_files )
+               str = lyxrc.getFeedback( LyXRC::RC_CHECKLASTFILES );
+       else if ( ob == paths_->input_lastfiles )
+               str = lyxrc.getFeedback( LyXRC::RC_LASTFILES );
+       else if ( ob == paths_->counter_lastfiles )
+               str = lyxrc.getFeedback( LyXRC::RC_NUMLASTFILES );
+       else if ( ob == paths_->check_make_backups )
+               str = lyxrc.getFeedback( LyXRC::RC_MAKE_BACKUP );
+       else if ( ob == paths_->input_backup_path )
+               str = lyxrc.getFeedback( LyXRC::RC_BACKUPDIR_PATH );
+       else if ( ob == paths_->input_serverpipe )
+               str = lyxrc.getFeedback( LyXRC::RC_SERVERPIPE );
        
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -1003,36 +1079,42 @@ void FormPreferences::feedbackPrinter( FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == printer_->input_command ) {
-               str = N_("Your favorite print program, eg \"dvips\", \"dvilj4\"");
-       } else if( ob == printer_->check_adapt_output ) {
-               str = N_("Set to true for LyX to pass the name of the destination printer to your\nprint command.");
-       } else if( ob == printer_->input_to_printer ) {
-               str = N_("Option to pass to the print program to print on a specific printer.");
-       } else if( ob == printer_->input_to_file ) {
-               str = N_("Option to pass to the print program to print to a file.");
-       } else if( ob == printer_->input_file_extension ) {
-               str = N_("Extension of printer program output file. Usually .ps");
-       } else if( ob == printer_->input_extra_options ) {
-               str = N_("Extra options to pass to printing program after everything else,\nbut before the filename of the DVI file to be printed.");
-       } else if( ob == printer_->input_spool_command ) {
-               str = N_("When set, this printer option automatically prints to a file and then calls\na separate print spooling program on that file with the given name\nand arguments.");
-       } else if( ob == printer_->input_spool_prefix ) {
-               str = N_("If you specify a printer name in the print dialog, the following argument\nis prepended along with the printer name after the spool command.");
-       } else if( ob == printer_->input_name ) {
-               str = N_("The default printer to print on. If none is specified, LyX will\nuse the environment variable PRINTER.");
-       } else if( ob == printer_->input_even_pages
-                || ob == printer_->input_odd_pages
-                || ob == printer_->input_page_range
-                || ob == printer_->input_reverse
-                || ob == printer_->input_landscape
-                || ob == printer_->input_copies
-                || ob == printer_->input_collated
-                || ob == printer_->input_paper_type
-                || ob == printer_->input_paper_size ) {
-               str = N_("Look at the man page for your favorite print program to learn\nwhich options to use.");
-       }
-       
+       if( ob == printer_->input_command )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINT_COMMAND );
+       else if( ob == printer_->check_adapt_output )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINT_ADAPTOUTPUT );
+       else if( ob == printer_->input_to_printer )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTTOPRINTER );
+       else if( ob == printer_->input_to_file )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTTOFILE );
+       else if( ob == printer_->input_file_extension )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTFILEEXTENSION );
+       else if( ob == printer_->input_extra_options )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTEXSTRAOPTIONS );
+       else if( ob == printer_->input_spool_command )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTSPOOL_COMMAND );
+       else if( ob == printer_->input_spool_prefix )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTSPOOL_PRINTERPREFIX );
+       else if( ob == printer_->input_name )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTER );
+       else if( ob == printer_->input_even_pages )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTEVENPAGEFLAG );
+       else if( ob == printer_->input_odd_pages )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTODDPAGEFLAG );
+       else if( ob == printer_->input_page_range )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTPAGERANGEFLAG );
+       else if( ob == printer_->input_reverse )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTREVERSEFLAG );
+       else if( ob == printer_->input_landscape )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTLANDSCAPEFLAG );
+       else if( ob == printer_->input_copies )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTCOLLCOPIESFLAG );
+       else if( ob == printer_->input_collated )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTCOPIESFLAG );
+       else if( ob == printer_->input_paper_type )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTPAPERFLAG );
+       else if( ob == printer_->input_paper_size )
+               str = lyxrc.getFeedback( LyXRC::RC_PRINTPAPERDIMENSIONFLAG );
        
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -1060,6 +1142,30 @@ void FormPreferences::buildPrinter()
        fl_set_input_return(printer_->input_spool_prefix, FL_RETURN_CHANGED);
        fl_set_input_return(printer_->input_paper_size, FL_RETURN_CHANGED);
        fl_set_input_return(printer_->input_name, FL_RETURN_CHANGED);
+
+       // set up the feedback mechanism
+       fl_addto_form(printer_->form);
+
+       setPostHandler( printer_->input_command );
+       setPostHandler( printer_->input_page_range );
+       setPostHandler( printer_->input_copies );
+       setPostHandler( printer_->input_reverse );
+       setPostHandler( printer_->input_to_printer );
+       setPostHandler( printer_->input_file_extension );
+       setPostHandler( printer_->input_spool_command );
+       setPostHandler( printer_->input_paper_type );
+       setPostHandler( printer_->input_even_pages );
+       setPostHandler( printer_->input_odd_pages );
+       setPostHandler( printer_->input_collated );
+       setPostHandler( printer_->input_landscape );
+       setPostHandler( printer_->input_to_file );
+       setPostHandler( printer_->input_extra_options );
+       setPostHandler( printer_->input_spool_prefix );
+       setPostHandler( printer_->input_paper_size );
+       setPostHandler( printer_->input_name );
+       setPostHandler( printer_->check_adapt_output );
+
+       fl_end_form();
 }
 
 
@@ -1138,10 +1244,18 @@ void FormPreferences::applyScreenFonts()
                lyxrc.use_scalable_fonts = button;
        }
 
-       int ivalue = fl_get_counter_value(screen_fonts_->counter_zoom);
-       if( lyxrc.zoom != static_cast<unsigned int>( ivalue ) ) {
+       unsigned int ivalue = static_cast<unsigned int>
+               (fl_get_counter_value(screen_fonts_->counter_zoom));
+       if( lyxrc.zoom != ivalue) {
+               changed = true;
+               lyxrc.zoom = ivalue;
+       }
+
+       ivalue = static_cast<unsigned int>
+               (fl_get_counter_value(screen_fonts_->counter_dpi));
+       if (lyxrc.dpi != ivalue) {
                changed = true;
-               lyxrc.zoom = static_cast<unsigned int>( ivalue );
+               lyxrc.dpi = ivalue;
        }
        
        double dvalue = strToDbl(fl_get_input(screen_fonts_->input_tiny));
@@ -1223,6 +1337,7 @@ void FormPreferences::buildScreenFonts()
        fl_set_input_return(screen_fonts_->input_screen_encoding,
                            FL_RETURN_CHANGED);
        fl_set_counter_return(screen_fonts_->counter_zoom, FL_RETURN_CHANGED);
+       fl_set_counter_return(screen_fonts_->counter_dpi, FL_RETURN_CHANGED);
        fl_set_input_return(screen_fonts_->input_tiny, FL_RETURN_CHANGED);
        fl_set_input_return(screen_fonts_->input_script, FL_RETURN_CHANGED);
        fl_set_input_return(screen_fonts_->input_footnote, FL_RETURN_CHANGED);
@@ -1233,6 +1348,29 @@ void FormPreferences::buildScreenFonts()
        fl_set_input_return(screen_fonts_->input_largest, FL_RETURN_CHANGED);
        fl_set_input_return(screen_fonts_->input_huge, FL_RETURN_CHANGED);
        fl_set_input_return(screen_fonts_->input_huger, FL_RETURN_CHANGED);
+
+       // set up the feedback mechanism
+       fl_addto_form(screen_fonts_->form);
+
+       setPostHandler( screen_fonts_->input_roman );
+       setPostHandler( screen_fonts_->input_sans );
+       setPostHandler( screen_fonts_->input_typewriter );
+       setPostHandler( screen_fonts_->counter_zoom );
+       setPostHandler( screen_fonts_->counter_dpi );
+       setPostHandler( screen_fonts_->check_scalable );
+       setPostHandler( screen_fonts_->input_screen_encoding );
+       setPostHandler( screen_fonts_->input_tiny );
+       setPostHandler( screen_fonts_->input_script );
+       setPostHandler( screen_fonts_->input_footnote );
+       setPostHandler( screen_fonts_->input_small );
+       setPostHandler( screen_fonts_->input_large );
+       setPostHandler( screen_fonts_->input_larger );
+       setPostHandler( screen_fonts_->input_largest );
+       setPostHandler( screen_fonts_->input_normal );
+       setPostHandler( screen_fonts_->input_huge );
+       setPostHandler( screen_fonts_->input_huger );
+
+       fl_end_form();
 }
 
        
@@ -1240,30 +1378,33 @@ void FormPreferences::feedbackScreenFonts(FL_OBJECT const * const ob )
 {
        string str;
 
-       if( ob == screen_fonts_->input_roman
-           || ob == screen_fonts_->input_sans
-           || ob == screen_fonts_->input_typewriter ) {
-               str = N_("The screen fonts used to display the text while editing.");
-       } else if( ob == screen_fonts_->check_scalable ) {
-               str = N_("Allow the use of scalable screen fonts? If false, LyX will use the\nclosest existing size for a match. Use this if the scalable fonts\nlook bad and you have many fixed size fonts.");
-       } else if( ob == screen_fonts_->input_screen_encoding ) {
-               str = N_("The norm for the screen fonts.");
-       } else if( ob == screen_fonts_->counter_zoom ) {
-               str = N_("The zoom percentage for screen fonts.\nA setting of 100% will make the fonts roughly the same size as on paper.");
-       } else if( ob == screen_fonts_->input_tiny
-                  || ob == screen_fonts_->input_script
-                  || ob == screen_fonts_->input_footnote
-                  || ob == screen_fonts_->input_small
-                  || ob == screen_fonts_->input_large
-                  || ob == screen_fonts_->input_larger
-                  || ob == screen_fonts_->input_larger
-                  || ob == screen_fonts_->input_largest
-                  || ob == screen_fonts_->input_normal
-                  || ob == screen_fonts_->input_huge
-                  || ob == screen_fonts_->input_huger ) {
-               str = N_("The font sizes used for calculating the scaling of the screen fonts.");
-       }
-       
+       if( ob == screen_fonts_->input_roman )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_ROMAN );
+       else if( ob == screen_fonts_->input_sans )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_SANS );
+       else if( ob == screen_fonts_->input_typewriter )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_TYPEWRITER );
+       else if( ob == screen_fonts_->check_scalable )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_SCALABLE );
+       else if( ob == screen_fonts_->input_screen_encoding )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_ENCODING );
+       else if( ob == screen_fonts_->counter_zoom )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_ZOOM );
+       else if( ob == screen_fonts_->counter_dpi ) 
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_DPI );
+       else if( ob == screen_fonts_->input_tiny
+                || ob == screen_fonts_->input_script
+                || ob == screen_fonts_->input_footnote
+                || ob == screen_fonts_->input_small
+                || ob == screen_fonts_->input_large
+                || ob == screen_fonts_->input_larger
+                || ob == screen_fonts_->input_larger
+                || ob == screen_fonts_->input_largest
+                || ob == screen_fonts_->input_normal
+                || ob == screen_fonts_->input_huge
+                || ob == screen_fonts_->input_huger )
+               str = lyxrc.getFeedback( LyXRC::RC_SCREEN_FONT_SIZES );
+
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
 }
@@ -1334,8 +1475,8 @@ void FormPreferences::updateScreenFonts()
                     lyxrc.font_norm.c_str());
        fl_set_button(screen_fonts_->check_scalable,
                      lyxrc.use_scalable_fonts);
-       fl_set_counter_value(screen_fonts_->counter_zoom,
-                            lyxrc.zoom);
+       fl_set_counter_value(screen_fonts_->counter_zoom, lyxrc.zoom);
+       fl_set_counter_value(screen_fonts_->counter_dpi,  lyxrc.dpi);
        fl_set_input(screen_fonts_->input_tiny,
                     tostr(lyxrc.font_sizes[LyXFont::SIZE_TINY]).c_str());
        fl_set_input(screen_fonts_->input_script,
@@ -1445,25 +1586,46 @@ void FormPreferences::buildSpellchecker()
        fl_deactivate_object(spellchecker_->button_personal_dict);
        fl_set_object_lcol(spellchecker_->button_personal_dict,
                           FL_INACTIVE);
+
+       // set up the feedback mechanism
+       fl_addto_form(spellchecker_->form);
+
+       setPostHandler( spellchecker_->choice_spell_command );
+       setPostHandler( spellchecker_->check_alt_lang );
+       setPostHandler( spellchecker_->input_alt_lang );
+       setPostHandler( spellchecker_->check_escape_chars );
+       setPostHandler( spellchecker_->input_escape_chars );
+       setPostHandler( spellchecker_->check_personal_dict );
+       setPostHandler( spellchecker_->input_personal_dict );
+       setPostHandler( spellchecker_->button_personal_dict );
+       setPostHandler( spellchecker_->check_compound_words );
+       setPostHandler( spellchecker_->check_input_enc );
+
+       fl_end_form();
 }
 
 
 void FormPreferences::feedbackSpellChecker( FL_OBJECT const * const ob )
 {
        string str;
-       if( ob == spellchecker_->choice_spell_command ) {
-               str = N_("What command runs the spell checker?");
-       } else if( ob == spellchecker_->check_alt_lang ) {
-               str = N_("Specify an alternate language.\nThe default is to use the language of the document.");
-       } else if( ob == spellchecker_->check_escape_chars ) {
-               str = N_("Specify additional chars that can be part of a word.");
-       } else if( ob == spellchecker_->check_personal_dict ) {
-               str = N_("Specify an alternate personal dictionary file.\nE.g. \".ispell_english\".");
-       } else if( ob == spellchecker_->check_compound_words ) {
-               str = N_("Consider run-together words, such as \"notthe\" for \"not the\",\nas legal words?");
-       } else if( ob == spellchecker_->check_input_enc ) {
-               str = N_("Specify whether to pass the -T input encoding option to ispell.\nEnable this if you can't spellcheck words with international letters\nin them.\nThis may not work with all dictionaries.");
-       }
+       if( ob == spellchecker_->choice_spell_command )
+               str = lyxrc.getFeedback( LyXRC::RC_SPELL_COMMAND );
+       else if( ob == spellchecker_->check_alt_lang )
+               str = lyxrc.getFeedback( LyXRC::RC_USE_ALT_LANG );
+       else if( ob == spellchecker_->input_alt_lang )
+               str = lyxrc.getFeedback( LyXRC::RC_ALT_LANG );
+       else if( ob == spellchecker_->check_escape_chars )
+               str = lyxrc.getFeedback( LyXRC::RC_USE_ESC_CHARS );
+       else if( ob == spellchecker_->input_escape_chars )
+               str = lyxrc.getFeedback( LyXRC::RC_ESC_CHARS );
+       else if( ob == spellchecker_->check_personal_dict )
+               str = lyxrc.getFeedback( LyXRC::RC_USE_PERS_DICT );
+       else if( ob == spellchecker_->input_personal_dict )
+               str = lyxrc.getFeedback( LyXRC::RC_PERS_DICT );
+       else if( ob == spellchecker_->check_compound_words )
+               str = lyxrc.getFeedback( LyXRC::RC_ACCEPT_COMPOUND );
+       else if( ob == spellchecker_->check_input_enc )
+               str = lyxrc.getFeedback( LyXRC::RC_USE_INP_ENC );
 
        fl_set_object_label(dialog_->text_warning, str.c_str());
        fl_set_object_lsize(dialog_->text_warning, FL_SMALL_SIZE);
@@ -1697,3 +1859,63 @@ bool FormPreferences::WriteableFile( string const & name, string const & suffix
 
        return success;
 }
+
+
+void FormPreferences::ComboLanguageCB(int, void * v, Combox * combox)
+{
+    FormPreferences * pre = static_cast<FormPreferences*>(v);
+    pre->bc_.valid( pre->input( reinterpret_cast<FL_OBJECT *>(combox),
+                               FormPreferences::LANGUAGE ) );
+}
+
+
+// C functions for the timer callback used to give the user feedback
+C_GENERICCB(FormPreferences, FeedbackCB)
+extern "C" int C_FormPreferencesFeedbackPost(FL_OBJECT * ob, int event,
+                                            FL_Coord mx, FL_Coord my, 
+                                            int key, void * xev)
+{
+       FormPreferences * pre =
+               static_cast<FormPreferences*>(ob->form->u_vdata);
+       return pre->FeedbackPost(ob, event, mx, my, key, xev);
+}
+
+
+void FormPreferences::FeedbackCB(FL_OBJECT *, long data)
+{
+       FL_OBJECT * ob = reinterpret_cast<FL_OBJECT*>(data);
+       FormPreferences * pre =
+               static_cast<FormPreferences*>(ob->form->u_vdata);
+       pre->feedback( ob );
+}
+
+// post_handler for feedback messages
+int FormPreferences::FeedbackPost(FL_OBJECT *ob, int event,
+                FL_Coord, FL_Coord, int, void *)
+{
+       FL_OBJECT * timer_feedback = reinterpret_cast<FL_OBJECT *>(ob->u_cdata);
+       
+       // We do not test for empty help here, since this can never happen
+       if(event == FL_ENTER){
+               fl_set_object_callback(timer_feedback,
+                                      C_FormPreferencesFeedbackCB,
+                                      reinterpret_cast<long>(ob));
+               fl_set_timer(timer_feedback, 0.5);
+       }
+       else if(event != FL_MOTION){
+               fl_set_timer(timer_feedback, 0);
+
+               FormPreferences * pre =
+                       static_cast<FormPreferences*>(ob->form->u_vdata);
+
+               fl_set_object_label(pre->dialog_->text_warning, "");
+       }
+       return 0;
+}
+
+
+void FormPreferences::setPostHandler( FL_OBJECT * ob ) const
+{
+       ob->u_cdata = reinterpret_cast<char *>(dialog_->timer_feedback);
+       fl_set_object_posthandler(ob, C_FormPreferencesFeedbackPost);
+}