src/frontends/xforms/FormPreferences.C

   1 /* FormPreferences.C
   2  * FormPreferences Interface Class Implementation
   3  */
   4
   5 #include <config.h>
   6
   7 #include FORMS_H_LOCATION
   8
   9 #ifdef __GNUG_
  10 #pragma implementation
  11 #endif
  12
  13 #include "FormPreferences.h"
  14 #include "form_preferences.h"
  15 #include "xform_macros.h"
  16 #include "input_validators.h"
  17 #include "LyXView.h"
  18 #include "lyxfunc.h"
  19 #include "Dialogs.h"
  20 #include "lyxrc.h"
  21 #include "debug.h"
  22 #include "support/FileInfo.h"
  23 #include "support/filetools.h"
  24 #include "lyx_gui_misc.h"
  25 #include "gettext.h"
  26
  27 #ifdef SIGC_CXX_NAMESPACES
  28 using SigC::slot;
  29 #endif
  30
  31 C_RETURNCB(FormPreferences,  WMHideCB)
  32 C_GENERICCB(FormPreferences, OKCB)
  33 C_GENERICCB(FormPreferences, ApplyCB)
  34 C_GENERICCB(FormPreferences, CancelCB)
  35 C_GENERICCB(FormPreferences, InputCB)
  36
  37
  38 FormPreferences::FormPreferences(LyXView * lv, Dialogs * d)
  39         : dialog_(0), bind_(0), misc_(0), screen_fonts_(0),
  40           interface_fonts_(0), printer_(0), paths_(0),
  41           lv_(lv), d_(d), u_(0), h_(0), status(DIALOG_UNMODIFIED)
  42 {
  43         // let the dialog be shown
  44         // This is a permanent connection so we won't bother
  45         // storing a copy because we won't be disconnecting.
  46         d->showPreferences.connect(slot(this,&FormPreferences::show));
  47 }
  48
  49
  50 FormPreferences::~FormPreferences()
  51 {
  52         free();
  53 }
  54
  55
  56 void FormPreferences::build()
  57 {
  58         dialog_ = build_preferences();
  59         bind_ = build_bind();
  60         screen_fonts_ = build_screen_fonts();
  61         interface_fonts_ = build_interface_fonts();
  62         misc_ = build_misc();
  63         printer_ = build_printer();
  64         paths_ = build_paths();
  65
  66         // setup the input returns
  67         // Bind tab
  68         fl_set_input_return(bind_->input_bind, FL_RETURN_CHANGED);
  69         // Misc tab
  70         fl_set_counter_return(misc_->counter_autosave, FL_RETURN_CHANGED);
  71         fl_set_counter_return(misc_->counter_line_len, FL_RETURN_CHANGED);
  72         // Screen fonts
  73         fl_set_input_return(screen_fonts_->input_roman, FL_RETURN_CHANGED);
  74         fl_set_input_return(screen_fonts_->input_sans, FL_RETURN_CHANGED);
  75         fl_set_input_return(screen_fonts_->input_typewriter,
  76                             FL_RETURN_CHANGED);
  77         fl_set_input_return(screen_fonts_->input_encoding, FL_RETURN_CHANGED);
  78         fl_set_counter_return(screen_fonts_->counter_zoom, FL_RETURN_CHANGED);
  79         fl_set_input_return(screen_fonts_->input_tiny, FL_RETURN_CHANGED);
  80         fl_set_input_return(screen_fonts_->input_script, FL_RETURN_CHANGED);
  81         fl_set_input_return(screen_fonts_->input_footnote, FL_RETURN_CHANGED);
  82         fl_set_input_return(screen_fonts_->input_small, FL_RETURN_CHANGED);
  83         fl_set_input_return(screen_fonts_->input_normal, FL_RETURN_CHANGED);
  84         fl_set_input_return(screen_fonts_->input_large, FL_RETURN_CHANGED);
  85         fl_set_input_return(screen_fonts_->input_larger, FL_RETURN_CHANGED);
  86         fl_set_input_return(screen_fonts_->input_largest, FL_RETURN_CHANGED);
  87         fl_set_input_return(screen_fonts_->input_huge, FL_RETURN_CHANGED);
  88         fl_set_input_return(screen_fonts_->input_huger, FL_RETURN_CHANGED);
  89         // interface fonts
  90         fl_set_input_return(interface_fonts_->input_popup_font,
  91                             FL_RETURN_CHANGED);
  92         fl_set_input_return(interface_fonts_->input_menu_font,
  93                             FL_RETURN_CHANGED);
  94         fl_set_input_return(interface_fonts_->input_encoding,
  95                             FL_RETURN_CHANGED);
  96         // printer
  97         fl_set_input_return(printer_->input_command, FL_RETURN_CHANGED);
  98         fl_set_input_return(printer_->input_page_range, FL_RETURN_CHANGED);
  99         fl_set_input_return(printer_->input_copies, FL_RETURN_CHANGED);
 100         fl_set_input_return(printer_->input_reverse, FL_RETURN_CHANGED);
 101         fl_set_input_return(printer_->input_to_printer, FL_RETURN_CHANGED);
 102         fl_set_input_return(printer_->input_file_extension, FL_RETURN_CHANGED);
 103         fl_set_input_return(printer_->input_spool_command, FL_RETURN_CHANGED);
 104         fl_set_input_return(printer_->input_paper_type, FL_RETURN_CHANGED);
 105         fl_set_input_return(printer_->input_even_pages, FL_RETURN_CHANGED);
 106         fl_set_input_return(printer_->input_odd_pages, FL_RETURN_CHANGED);
 107         fl_set_input_return(printer_->input_collated, FL_RETURN_CHANGED);
 108         fl_set_input_return(printer_->input_landscape, FL_RETURN_CHANGED);
 109         fl_set_input_return(printer_->input_to_file, FL_RETURN_CHANGED);
 110         fl_set_input_return(printer_->input_extra_options, FL_RETURN_CHANGED);
 111         fl_set_input_return(printer_->input_spool_prefix, FL_RETURN_CHANGED);
 112         fl_set_input_return(printer_->input_paper_size, FL_RETURN_CHANGED);
 113         fl_set_input_return(printer_->input_name, FL_RETURN_CHANGED);
 114         // paths
 115         fl_set_input_return(paths_->input_default_path, FL_RETURN_CHANGED);
 116         fl_set_input_return(paths_->input_template_path, FL_RETURN_CHANGED);
 117         fl_set_input_return(paths_->input_temp_dir, FL_RETURN_CHANGED);
 118         fl_set_input_return(paths_->input_lastfiles, FL_RETURN_CHANGED);
 119         fl_set_input_return(paths_->input_backup_path, FL_RETURN_CHANGED);
 120         fl_set_counter_return(paths_->counter_lastfiles, FL_RETURN_CHANGED);
 121
 122         // Now add them to the tabfolder
 123         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 124                            _("Bindings"),
 125                            bind_->form_bind);
 126         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 127                            _("Screen Fonts"),
 128                            screen_fonts_->form_screen_fonts);
 129         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 130                            _("Interface Fonts"),
 131                            interface_fonts_->form_interface_fonts);
 132         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 133                            _("Miscellaneous"),
 134                            misc_->form_misc);
 135         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 136                            _("Printer"),
 137                            printer_->form_printer);
 138         fl_addto_tabfolder(dialog_->tabfolder_prefs,
 139                            _("Paths"),
 140                            paths_->form_paths);
 141
 142         fl_set_form_atclose(dialog_->form_preferences,
 143                             C_FormPreferencesWMHideCB, 0);
 144
 145         // deactivate the various browse buttons because they
 146         // currently aren't implemented
 147         fl_deactivate_object(bind_->button_bind_file_browse);
 148         fl_deactivate_object(paths_->button_document_browse);
 149         fl_deactivate_object(paths_->button_template_browse);
 150         fl_deactivate_object(paths_->button_temp_dir_browse);
 151         fl_deactivate_object(paths_->button_lastfiles_browse);
 152         fl_deactivate_object(paths_->button_backup_path_browse);
 153         fl_set_object_lcol(bind_->button_bind_file_browse, FL_INACTIVE);
 154         fl_set_object_lcol(paths_->button_document_browse, FL_INACTIVE);
 155         fl_set_object_lcol(paths_->button_template_browse, FL_INACTIVE);
 156         fl_set_object_lcol(paths_->button_temp_dir_browse, FL_INACTIVE);
 157         fl_set_object_lcol(paths_->button_lastfiles_browse, FL_INACTIVE);
 158         fl_set_object_lcol(paths_->button_backup_path_browse, FL_INACTIVE);
 159 }
 160
 161
 162 void FormPreferences::show()
 163 {
 164         if (!dialog_) {
 165                 build();
 166         }
 167         update();  // make sure its up-to-date
 168
 169         if (dialog_->form_preferences->visible) {
 170                 fl_raise_form(dialog_->form_preferences);
 171         } else {
 172                 status = DIALOG_UNMODIFIED;
 173                 fl_deactivate_object(dialog_->button_ok);
 174                 fl_deactivate_object(dialog_->button_apply);
 175                 fl_set_object_lcol(dialog_->button_ok, FL_INACTIVE);
 176                 fl_set_object_lcol(dialog_->button_apply, FL_INACTIVE);
 177
 178                 fl_show_form(dialog_->form_preferences,
 179                              FL_PLACE_MOUSE | FL_FREE_SIZE,
 180                              FL_FULLBORDER,
 181                              _("Preferences"));
 182         }
 183 }
 184
 185
 186 void FormPreferences::hide()
 187 {
 188         if (dialog_
 189             && dialog_->form_preferences
 190             && dialog_->form_preferences->visible) {
 191                 fl_hide_form(dialog_->form_preferences);
 192         }
 193 }
 194
 195
 196 void FormPreferences::apply()
 197 {
 198         // set the new lyxrc entries
 199         // many of these need to trigger other functions when the assignment
 200         // is made.  For example, screen zoom and font types.  These could be
 201         // handled either by signals/slots in lyxrc or just directly call the
 202         // associated functions here.
 203
 204         // Bind tab
 205         lyxrc.bind_file = fl_get_input(bind_->input_bind);
 206         // Misc tab
 207         lyxrc.show_banner = fl_get_button(misc_->check_banner);
 208         lyxrc.auto_region_delete = fl_get_button(misc_->
 209                                                  check_auto_region_delete);
 210         lyxrc.exit_confirmation = fl_get_button(misc_->check_exit_confirm);
 211         lyxrc.display_shortcuts =
 212                 fl_get_button(misc_->check_display_shortcuts);
 213         lyxrc.autosave = static_cast<unsigned int>
 214                 (fl_get_counter_value(misc_->counter_autosave));
 215         lyxrc.ascii_linelen = static_cast<unsigned int>
 216                 (fl_get_counter_value(misc_->counter_line_len));
 217         // Screen fonts
 218         lyxrc.roman_font_name = fl_get_input(screen_fonts_->input_roman);
 219         lyxrc.sans_font_name = fl_get_input(screen_fonts_->input_sans);
 220         lyxrc.typewriter_font_name = fl_get_input(screen_fonts_->
 221                                                   input_typewriter);
 222         lyxrc.font_norm = fl_get_input(screen_fonts_->input_encoding);
 223         lyxrc.use_scalable_fonts =
 224                 fl_get_button(screen_fonts_->check_scalable);
 225         lyxrc.zoom = static_cast<unsigned int>
 226                 (fl_get_counter_value(screen_fonts_->counter_zoom));
 227         lyxrc.font_sizes[LyXFont::SIZE_TINY] =
 228                 strToDbl(fl_get_input(screen_fonts_->input_tiny));
 229         lyxrc.font_sizes[LyXFont::SIZE_SCRIPT] =
 230                 strToDbl(fl_get_input(screen_fonts_->input_script));
 231         lyxrc.font_sizes[LyXFont::SIZE_FOOTNOTE] =
 232                 strToDbl(fl_get_input(screen_fonts_->input_footnote));
 233         lyxrc.font_sizes[LyXFont::SIZE_SMALL] =
 234                 strToDbl(fl_get_input(screen_fonts_->input_small));
 235         lyxrc.font_sizes[LyXFont::SIZE_NORMAL] =
 236                 strToDbl(fl_get_input(screen_fonts_->input_normal));
 237         lyxrc.font_sizes[LyXFont::SIZE_LARGE] =
 238                 strToDbl(fl_get_input(screen_fonts_->input_large));
 239         lyxrc.font_sizes[LyXFont::SIZE_LARGER] =
 240                 strToDbl(fl_get_input(screen_fonts_->input_larger));
 241         lyxrc.font_sizes[LyXFont::SIZE_LARGEST] =
 242                 strToDbl(fl_get_input(screen_fonts_->input_largest));
 243         lyxrc.font_sizes[LyXFont::SIZE_HUGE] =
 244                 strToDbl(fl_get_input(screen_fonts_->input_huge));
 245         lyxrc.font_sizes[LyXFont::SIZE_HUGER] =
 246                 strToDbl(fl_get_input(screen_fonts_->input_huger));
 247         // interface fonts
 248         lyxrc.popup_font_name =
 249                 fl_get_input(interface_fonts_->input_popup_font);
 250         lyxrc.menu_font_name = fl_get_input(interface_fonts_->input_menu_font);
 251         lyxrc.font_norm_menu = fl_get_input(interface_fonts_->input_encoding);
 252         // printer
 253         lyxrc.print_adapt_output = fl_get_button(printer_->check_adapt_output);
 254         lyxrc.print_command = fl_get_input(printer_->input_command);
 255         lyxrc.print_pagerange_flag = fl_get_input(printer_->input_page_range);
 256         lyxrc.print_copies_flag = fl_get_input(printer_->input_copies);
 257         lyxrc.print_reverse_flag = fl_get_input(printer_->input_reverse);
 258         lyxrc.print_to_printer = fl_get_input(printer_->input_to_printer);
 259         lyxrc.print_file_extension =
 260                 fl_get_input(printer_->input_file_extension);
 261         lyxrc.print_spool_command =
 262                 fl_get_input(printer_->input_spool_command);
 263         lyxrc.print_paper_flag = fl_get_input(printer_->input_paper_type);
 264         lyxrc.print_evenpage_flag = fl_get_input(printer_->input_even_pages);
 265         lyxrc.print_oddpage_flag = fl_get_input(printer_->input_odd_pages);
 266         lyxrc.print_collcopies_flag = fl_get_input(printer_->input_collated);
 267         lyxrc.print_landscape_flag = fl_get_input(printer_->input_landscape);
 268         lyxrc.print_to_file = fl_get_input(printer_->input_to_file);
 269         lyxrc.print_extra_options =
 270                 fl_get_input(printer_->input_extra_options);
 271         lyxrc.print_spool_printerprefix =
 272                 fl_get_input(printer_->input_spool_prefix);
 273         lyxrc.print_paper_dimension_flag =
 274                 fl_get_input(printer_->input_paper_size);
 275         lyxrc.printer = fl_get_input(printer_->input_name);
 276         // paths
 277         lyxrc.document_path = fl_get_input(paths_->input_default_path);
 278         lyxrc.template_path = fl_get_input(paths_->input_template_path);
 279         lyxrc.tempdir_path = fl_get_input(paths_->input_temp_dir);
 280         lyxrc.lastfiles = fl_get_input(paths_->input_lastfiles);
 281         lyxrc.backupdir_path = fl_get_input(paths_->input_backup_path);
 282         lyxrc.use_tempdir = fl_get_button(paths_->check_use_temp_dir);
 283         lyxrc.check_lastfiles = fl_get_button(paths_->check_last_files);
 284         lyxrc.make_backup = fl_get_button(paths_->check_make_backups);
 285         lyxrc.num_lastfiles = static_cast<unsigned int>
 286                 (fl_get_counter_value(paths_->counter_lastfiles));
 287 }
 288
 289
 290 void FormPreferences::update()
 291 {
 292         if (dialog_) {
 293                 // read lyxrc entries
 294                 // Bind tab
 295                 fl_set_input(bind_->input_bind, lyxrc.bind_file.c_str());
 296                 // Misc tab
 297                 fl_set_button(misc_->check_banner,
 298                               lyxrc.show_banner);
 299                 fl_set_button(misc_->check_auto_region_delete,
 300                               lyxrc.auto_region_delete);
 301                 fl_set_button(misc_->check_exit_confirm,
 302                               lyxrc.exit_confirmation);
 303                 fl_set_button(misc_->check_display_shortcuts,
 304                               lyxrc.display_shortcuts);
 305                 fl_set_counter_value(misc_->counter_autosave,
 306                                      lyxrc.autosave);
 307                 fl_set_counter_value(misc_->counter_line_len,
 308                                      lyxrc.ascii_linelen);
 309                 // Screen fonts
 310                 fl_set_input(screen_fonts_->input_roman,
 311                              lyxrc.roman_font_name.c_str());
 312                 fl_set_input(screen_fonts_->input_sans,
 313                              lyxrc.sans_font_name.c_str());
 314                 fl_set_input(screen_fonts_->input_typewriter,
 315                              lyxrc.typewriter_font_name.c_str());
 316                 fl_set_input(screen_fonts_->input_encoding,
 317                              lyxrc.font_norm.c_str());
 318                 fl_set_button(screen_fonts_->check_scalable,
 319                              lyxrc.use_scalable_fonts);
 320                 fl_set_counter_value(screen_fonts_->counter_zoom,
 321                              lyxrc.zoom);
 322                 fl_set_input(screen_fonts_->input_tiny,
 323                              tostr(lyxrc.font_sizes[LyXFont::SIZE_TINY]).c_str());
 324                 fl_set_input(screen_fonts_->input_script,
 325                              tostr(lyxrc.font_sizes[LyXFont::SIZE_SCRIPT]).c_str());
 326                 fl_set_input(screen_fonts_->input_footnote,
 327                              tostr(lyxrc.font_sizes[LyXFont::SIZE_FOOTNOTE]).c_str());
 328                 fl_set_input(screen_fonts_->input_small,
 329                              tostr(lyxrc.font_sizes[LyXFont::SIZE_SMALL]).c_str());
 330                 fl_set_input(screen_fonts_->input_normal,
 331                              tostr(lyxrc.font_sizes[LyXFont::SIZE_NORMAL]).c_str());
 332                 fl_set_input(screen_fonts_->input_large,
 333                              tostr(lyxrc.font_sizes[LyXFont::SIZE_LARGE]).c_str());
 334                 fl_set_input(screen_fonts_->input_larger,
 335                              tostr(lyxrc.font_sizes[LyXFont::SIZE_LARGER]).c_str());
 336                 fl_set_input(screen_fonts_->input_largest,
 337                              tostr(lyxrc.font_sizes[LyXFont::SIZE_LARGEST]).c_str());
 338                 fl_set_input(screen_fonts_->input_huge,
 339                              tostr(lyxrc.font_sizes[LyXFont::SIZE_HUGE]).c_str());
 340                 fl_set_input(screen_fonts_->input_huger,
 341                              tostr(lyxrc.font_sizes[LyXFont::SIZE_HUGER]).c_str());
 342                 // interface fonts
 343                 fl_set_input(interface_fonts_->input_popup_font,
 344                              lyxrc.popup_font_name.c_str());
 345                 fl_set_input(interface_fonts_->input_menu_font,
 346                              lyxrc.menu_font_name.c_str());
 347                 fl_set_input(interface_fonts_->input_encoding,
 348                              lyxrc.font_norm_menu.c_str());
 349                 // printer
 350                 fl_set_button(printer_->check_adapt_output,
 351                               lyxrc.print_adapt_output);
 352                 fl_set_input(printer_->input_command,
 353                              lyxrc.print_command.c_str());
 354                 fl_set_input(printer_->input_page_range,
 355                              lyxrc.print_pagerange_flag.c_str());
 356                 fl_set_input(printer_->input_copies,
 357                              lyxrc.print_copies_flag.c_str());
 358                 fl_set_input(printer_->input_reverse,
 359                               lyxrc.print_reverse_flag.c_str());
 360                 fl_set_input(printer_->input_to_printer,
 361                              lyxrc.print_to_printer.c_str());
 362                 fl_set_input(printer_->input_file_extension,
 363                              lyxrc.print_file_extension.c_str());
 364                 fl_set_input(printer_->input_spool_command,
 365                              lyxrc.print_spool_command.c_str());
 366                 fl_set_input(printer_->input_paper_type,
 367                              lyxrc.print_paper_flag.c_str());
 368                 fl_set_input(printer_->input_even_pages,
 369                              lyxrc.print_evenpage_flag.c_str());
 370                 fl_set_input(printer_->input_odd_pages,
 371                              lyxrc.print_oddpage_flag.c_str());
 372                 fl_set_input(printer_->input_collated,
 373                              lyxrc.print_collcopies_flag.c_str());
 374                 fl_set_input(printer_->input_landscape,
 375                              lyxrc.print_landscape_flag.c_str());
 376                 fl_set_input(printer_->input_to_file,
 377                              lyxrc.print_to_file.c_str());
 378                 fl_set_input(printer_->input_extra_options,
 379                              lyxrc.print_extra_options.c_str());
 380                 fl_set_input(printer_->input_spool_prefix,
 381                              lyxrc.print_spool_printerprefix.c_str());
 382                 fl_set_input(printer_->input_paper_size,
 383                              lyxrc.print_paper_dimension_flag.c_str());
 384                 fl_set_input(printer_->input_name,
 385                              lyxrc.printer.c_str());
 386                 // paths
 387                 fl_set_input(paths_->input_default_path,
 388                              lyxrc.document_path.c_str());
 389                 fl_set_input(paths_->input_template_path,
 390                              lyxrc.template_path.c_str());
 391                 fl_set_input(paths_->input_temp_dir,
 392                              lyxrc.tempdir_path.c_str());
 393                 fl_set_input(paths_->input_lastfiles,
 394                              lyxrc.lastfiles.c_str());
 395                 fl_set_input(paths_->input_backup_path,
 396                              lyxrc.backupdir_path.c_str());
 397                 fl_set_button(paths_->check_use_temp_dir,
 398                               lyxrc.use_tempdir);
 399                 fl_set_button(paths_->check_last_files,
 400                               lyxrc.check_lastfiles);
 401                 fl_set_button(paths_->check_make_backups,
 402                               lyxrc.make_backup);
 403                 fl_set_counter_value(paths_->counter_lastfiles,
 404                                      lyxrc.num_lastfiles);
 405         }
 406 }
 407
 408
 409 void FormPreferences::input()
 410 {
 411         bool activate = true;
 412         //
 413         // whatever checks you need to ensure the user hasn't entered
 414         // some totally ridiculous value somewhere.  Change activate to suit.
 415         //
 416         // Examples:
 417         //  paths -- all dirs in the path should exist, be writable & absolute
 418         if (!AbsolutePath(fl_get_input(paths_->input_default_path))
 419             || 1 != IsDirWriteable(fl_get_input(paths_->input_default_path))
 420             || !AbsolutePath(fl_get_input(paths_->input_template_path))
 421             || 1 != IsDirWriteable(fl_get_input(paths_->input_template_path))
 422             // lastfiles: exists && writeable || non-existent && isn't a dir
 423             // NOTE: assumes IsFileWriteable == -1 means non-existent hence
 424             //       the extra check to see if its a directory
 425             || !AbsolutePath(fl_get_input(paths_->input_lastfiles))
 426             || 1 != IsDirWriteable(OnlyPath(fl_get_input(paths_->
 427                                                          input_lastfiles)))
 428             || 0 == IsFileWriteable(OnlyPath(fl_get_input(paths_->
 429                                                           input_lastfiles)))
 430             || FileInfo(fl_get_input(paths_->input_lastfiles)).isDir()
 431             // tmpdir: only check if we are using it
 432             || (fl_get_button(paths_->check_use_temp_dir)
 433                 && (1 != IsDirWriteable(fl_get_input(paths_->input_temp_dir))
 434                     || !AbsolutePath(fl_get_input(paths_->input_temp_dir))))
 435             // backupdir: can safely be left empty
 436             || (fl_get_button(paths_->check_make_backups)
 437                 && (!string(fl_get_input(paths_->input_backup_path)).empty()
 438                     && (1 != IsDirWriteable(fl_get_input(paths_->
 439                                                         input_backup_path))
 440                         || !AbsolutePath(fl_get_input(paths_->
 441                                                       input_backup_path)))))) {
 442                 activate = false;
 443         }
 444
 445         //  fontsizes -- tiny < script < footnote etc.
 446         if (0.0 >= strToDbl(fl_get_input(screen_fonts_->input_tiny))
 447             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_script))
 448             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_footnote))
 449             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_small))
 450             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_normal))
 451             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_large))
 452             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_larger))
 453             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_largest))
 454             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_huge))
 455             || 0.0 >= strToDbl(fl_get_input(screen_fonts_->input_huger))) {
 456                 // make sure they all have positive entries
 457                 // Also note that an empty entry is returned as 0.0 by strToDbl
 458                 activate = false;
 459         } else if (strToDbl(fl_get_input(screen_fonts_->input_tiny)) >
 460                    strToDbl(fl_get_input(screen_fonts_->input_script)) ||
 461                    strToDbl(fl_get_input(screen_fonts_->input_script)) >
 462                    strToDbl(fl_get_input(screen_fonts_->input_footnote)) ||
 463                    strToDbl(fl_get_input(screen_fonts_->input_footnote)) >
 464                    strToDbl(fl_get_input(screen_fonts_->input_small)) ||
 465                    strToDbl(fl_get_input(screen_fonts_->input_small)) >
 466                    strToDbl(fl_get_input(screen_fonts_->input_normal)) ||
 467                    strToDbl(fl_get_input(screen_fonts_->input_normal)) >
 468                    strToDbl(fl_get_input(screen_fonts_->input_large)) ||
 469                    strToDbl(fl_get_input(screen_fonts_->input_large)) >
 470                    strToDbl(fl_get_input(screen_fonts_->input_larger)) ||
 471                    strToDbl(fl_get_input(screen_fonts_->input_larger)) >
 472                    strToDbl(fl_get_input(screen_fonts_->input_largest)) ||
 473                    strToDbl(fl_get_input(screen_fonts_->input_largest)) >
 474                    strToDbl(fl_get_input(screen_fonts_->input_huge)) ||
 475                    strToDbl(fl_get_input(screen_fonts_->input_huge)) >
 476                    strToDbl(fl_get_input(screen_fonts_->input_huger))) {
 477                 activate = false;
 478         }
 479
 480         //
 481         // You can modify the dialog and still have the buttons disabled
 482         status = DIALOG_MODIFIED;
 483
 484         if (status == DIALOG_MODIFIED
 485             && activate) {
 486                 fl_activate_object(dialog_->button_ok);
 487                 fl_activate_object(dialog_->button_apply);
 488                 fl_set_object_lcol(dialog_->button_ok, FL_BLACK);
 489                 fl_set_object_lcol(dialog_->button_apply, FL_BLACK);
 490         } else {
 491                 fl_deactivate_object(dialog_->button_ok);
 492                 fl_deactivate_object(dialog_->button_apply);
 493                 fl_set_object_lcol(dialog_->button_ok, FL_INACTIVE);
 494                 fl_set_object_lcol(dialog_->button_apply, FL_INACTIVE);
 495         }
 496 }
 497
 498
 499 void FormPreferences::free()
 500 {
 501         // we don't need to delete u and h here because
 502         // hide() does that after disconnecting.
 503         if (dialog_) {
 504                 if (dialog_->form_preferences
 505                     && dialog_->form_preferences->visible) {
 506                         hide();
 507                 }
 508                 fl_free_form(dialog_->form_preferences);
 509                 delete dialog_;
 510                 dialog_ = 0;
 511         }
 512 }
 513
 514
 515 int FormPreferences::WMHideCB(FL_FORM * form, void *)
 516 {
 517         // Ensure that the signals (u and h) are disconnected even if the
 518         // window manager is used to close the dialog.
 519         FormPreferences * pre = static_cast<FormPreferences*>(form->u_vdata);
 520         pre->hide();
 521         return FL_CANCEL;
 522 }
 523
 524
 525 void FormPreferences::OKCB(FL_OBJECT * ob, long)
 526 {
 527         FormPreferences * pre = static_cast<FormPreferences*>(ob->form->u_vdata);
 528         pre->apply();
 529         pre->hide();
 530
 531         pre->lv_->getLyXFunc()->Dispatch(LFUN_SAVEPREFERENCES);
 532 }
 533
 534
 535 void FormPreferences::ApplyCB(FL_OBJECT * ob, long)
 536 {
 537         FormPreferences * pre = static_cast<FormPreferences*>(ob->form->u_vdata);
 538         pre->apply();
 539 }
 540
 541
 542 void FormPreferences::CancelCB(FL_OBJECT * ob, long)
 543 {
 544         FormPreferences * pre = static_cast<FormPreferences*>(ob->form->u_vdata);
 545         pre->hide();
 546 }
 547
 548
 549 void FormPreferences::InputCB(FL_OBJECT * ob, long)
 550 {
 551         FormPreferences * pre = static_cast<FormPreferences*>(ob->form->u_vdata);
 552         pre->input();
 553 }