src/lyx_gui_misc.C

   1 // -*- C++ -*-
   2 /* This file is part of
   3  * ======================================================
   4  *
   5  *           LyX, The Document Processor
   6  *
   7  *           Copyright 1995 Matthias Ettrich
   8  *           Copyright 1995-2000 The LyX Team.
   9  *
  10  * ====================================================== */
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include <cerrno>
  19 #include "lyx_gui_misc.h"
  20 #include "BufferView.h"
  21 #include "buffer.h"
  22 #include "credits_form.h"
  23 #include "form1.h"
  24 #include "gettext.h"
  25 #include "layout_forms.h"
  26 #include "lyx.h"
  27 #include "lyx_cb.h"
  28 #include "lyx_main.h"
  29 #include "mathed/math_forms.h"
  30 #include "minibuffer.h"
  31 #include "print_form.h"
  32 #include "sp_form.h"
  33 #include "LyXView.h"
  34 #include "bufferview_funcs.h"
  35 #include "support/filetools.h"
  36 #include "lyxrc.h"
  37
  38 using std::pair;
  39 using std::make_pair;
  40 using std::endl;
  41
  42 extern BufferView * current_view;
  43
  44 extern FD_form_character * fd_form_character;
  45 extern FD_form_credits * fd_form_credits;
  46 extern FD_form_figure * fd_form_figure;
  47 extern FD_form_preamble * fd_form_preamble;
  48 extern FD_form_sendto * fd_form_sendto;
  49 extern FD_form_spell_check * fd_form_spell_check;
  50 extern FD_form_spell_options * fd_form_spell_options;
  51 extern FD_panel  * fd_panel;
  52 extern FD_delim  * fd_delim;
  53 extern FD_deco   * fd_deco;
  54 extern FD_space  * fd_space;
  55 extern FD_matrix * fd_matrix;
  56
  57 extern void HideFiguresPopups();
  58
  59 // Prevents LyX from being killed when the close box is pressed in a popup.
  60 extern "C" int CancelCloseBoxCB(FL_FORM *, void *)
  61 {
  62         return FL_CANCEL;
  63 }
  64 // Redraw the form (on receipt of a Signal indicating, for example,
  65 // that the xform colors have been re-mapped).
  66 void RedrawAllBufferRelatedDialogs()
  67 {
  68         if (fd_deco && fd_deco->deco->visible) {
  69                 fl_redraw_form(fd_deco->deco);
  70         }
  71         if (fd_delim && fd_delim->delim->visible) {
  72                 fl_redraw_form(fd_delim->delim);
  73         }
  74         if (fd_form_character->form_character->visible) {
  75                 fl_redraw_form(fd_form_character->form_character);
  76         }
  77         if (fd_form_credits && fd_form_credits->form_credits->visible) {
  78                 fl_redraw_form(fd_form_credits->form_credits);
  79         }
  80         if (fd_form_figure->form_figure->visible) {
  81                 fl_redraw_form(fd_form_figure->form_figure);
  82         }
  83         if (fd_form_preamble->form_preamble->visible) {
  84                 fl_redraw_form(fd_form_preamble->form_preamble);
  85         }
  86         if (fd_form_sendto->form_sendto->visible) {
  87                 fl_redraw_form(fd_form_sendto->form_sendto);
  88         }
  89         if (fd_form_spell_check &&
  90             fd_form_spell_check->form_spell_check->visible) {
  91                 fl_redraw_form(fd_form_spell_check->form_spell_check);
  92         }
  93         if (fd_form_spell_options &&
  94             fd_form_spell_options->form_spell_options->visible) {
  95                 fl_redraw_form(fd_form_spell_options->form_spell_options);
  96         }
  97         if (fd_matrix && fd_matrix->matrix->visible) {
  98                 fl_redraw_form(fd_matrix->matrix);
  99         }
 100         if (fd_panel && fd_panel->panel->visible) {
 101                 fl_redraw_form(fd_panel->panel);
 102         }
 103         if (fd_space && fd_space->space->visible) {
 104                 fl_redraw_form(fd_space->space);
 105         }
 106 }
 107
 108 // Prevents LyX from crashing when no buffers available
 109 // This is also one of the functions that we _really_ dont want
 110 // we should try to finds way to help us with that.
 111 // The signal/slot mechanism can probably help.
 112 void CloseAllBufferRelatedDialogs()
 113 {
 114         // don't forget to check that dynamically created forms
 115         // have been created otherwise hiding one could cause a crash
 116         // need the visible check otherwise XForms prints a warning
 117         // if hiding an invisible form
 118         if (fd_form_character->form_character->visible) {
 119                 fl_hide_form(fd_form_character->form_character);
 120         }
 121         if (fd_form_preamble->form_preamble->visible) {
 122                 fl_hide_form(fd_form_preamble->form_preamble);
 123         }
 124         if (fd_form_figure->form_figure->visible) {
 125                 fl_hide_form(fd_form_figure->form_figure);
 126         }
 127         if (fd_form_sendto->form_sendto->visible) {
 128                 fl_hide_form(fd_form_sendto->form_sendto);
 129         }
 130         if (fd_form_spell_check) {
 131                 if (fd_form_spell_check->form_spell_check->visible) {
 132                         fl_trigger_object(fd_form_spell_check->done);
 133                 }
 134         }
 135         if (fd_panel) {
 136                 if (fd_panel->panel->visible) {
 137                         fl_hide_form(fd_panel->panel);
 138                 }
 139         }
 140         if (fd_delim) {
 141                 if (fd_delim->delim->visible) {
 142                         fl_hide_form(fd_delim->delim);
 143                 }
 144         }
 145         if (fd_deco) {
 146                 if (fd_deco->deco->visible) {
 147                         fl_hide_form(fd_deco->deco);
 148                 }
 149         }
 150         if (fd_space) {
 151                 if (fd_space->space->visible) {
 152                         fl_hide_form(fd_space->space);
 153                 }
 154         }
 155         if (fd_matrix) {
 156                 if (fd_matrix->matrix->visible) {
 157                         fl_hide_form(fd_matrix->matrix);
 158                 }
 159         }
 160         HideFiguresPopups();
 161 }
 162
 163 // This is another function we really don't want.
 164 // Again the Signal/Slot mechanism is tailor made for this task.
 165 void updateAllVisibleBufferRelatedDialogs(bool)
 166 {
 167         if (fd_form_preamble->form_preamble->visible) {
 168                 UpdateLayoutPreamble(current_view);
 169         }
 170         if (current_view->buffer() &&  current_view->buffer()->isReadonly()) {
 171                 // a little crude perhaps but it works. ARRae
 172                 if (fd_form_character->form_character->visible) {
 173                         fl_hide_form(fd_form_character->form_character);
 174                 }
 175 #ifndef ALWAYS_CLOSE_MATH_PANELS
 176                 // The math popups should be closed only if we switch
 177                 // to a readonly buffer
 178                 if (fd_panel) {
 179                         if (fd_panel->panel->visible) {
 180                                 fl_hide_form(fd_panel->panel);
 181                         }
 182                 }
 183                 if (fd_delim) {
 184                         if (fd_delim->delim->visible) {
 185                                 fl_hide_form(fd_delim->delim);
 186                         }
 187                 }
 188                 if (fd_deco) {
 189                         if (fd_deco->deco->visible) {
 190                                 fl_hide_form(fd_deco->deco);
 191                         }
 192                 }
 193                 if (fd_space) {
 194                         if (fd_space->space->visible) {
 195                                 fl_hide_form(fd_space->space);
 196                         }
 197                 }
 198                 if (fd_matrix) {
 199                         if (fd_matrix->matrix->visible) {
 200                                 fl_hide_form(fd_matrix->matrix);
 201                         }
 202                 }
 203 #endif
 204         }
 205
 206         // We have either changed buffers or changed the readonly status
 207         // so the safest thing to do is hide all inset popups that
 208         // are editting insets from the previous buffer or aren't
 209         // allowed in readonly docs.
 210 #ifdef ALWAYS_CLOSE_MATH_PANELS
 211         if (fd_panel) {
 212                 if (fd_panel->panel->visible) {
 213                         fl_hide_form(fd_panel->panel);
 214                 }
 215         }
 216         if (fd_delim) {
 217                 if (fd_delim->delim->visible) {
 218                         fl_hide_form(fd_delim->delim);
 219                 }
 220         }
 221         if (fd_deco) {
 222                 if (fd_deco->deco->visible) {
 223                         fl_hide_form(fd_deco->deco);
 224                 }
 225         }
 226         if (fd_space) {
 227                 if (fd_space->space->visible) {
 228                         fl_hide_form(fd_space->space);
 229                 }
 230         }
 231         if (fd_matrix) {
 232                 if (fd_matrix->matrix->visible) {
 233                         fl_hide_form(fd_matrix->matrix);
 234                 }
 235         }
 236 #endif
 237         HideFiguresPopups();
 238 }
 239
 240 // Extract shortcut from <ident>|<shortcut> string
 241 char const * flyx_shortcut_extract(char const * sc)
 242 {
 243         // Find '|' in the sc and return the string after that.
 244         register char const * sd = sc;
 245         while(sd[0]!= 0 && sd[0] != '|') ++sd;
 246
 247         if (sd[0] == '|') {
 248                 ++sd;
 249                 //lyxerr << sd << endl;
 250                 return sd;
 251         }
 252         return "";
 253 }
 254
 255
 256 // Extract identifier from <ident>|<shortcut> string
 257 char const * flyx_ident_extract(char const * sc)
 258 {
 259         register char const * se = sc;
 260         while(se[0]!= 0 && se[0] != '|') ++se;
 261
 262         if (se[0] == 0) return sc;
 263
 264         char * sb = new char[se - sc + 1];
 265         int index = 0;
 266         register char const * sd = sc;
 267         while (sd != se) {
 268                 sb[index] = sd[0];
 269                 ++index; ++sd;
 270         }
 271         sb[index] = 0;
 272         return sb;
 273 }
 274
 275
 276 void WriteStatus(MiniBuffer * minib, string const & s)
 277 {
 278         if (minib) {
 279                 minib->Set(s);
 280                 minib->Store();
 281         } else
 282                 lyxerr << s << endl;
 283 }
 284
 285
 286 //
 287 void WriteAlert(string const & s1, string const & s2, string const & s3)
 288 {
 289         MiniBuffer * minibuffer = 0;
 290         if (current_view && current_view->owner())
 291                 minibuffer = current_view->owner()->getMiniBuffer();
 292         if (minibuffer) {
 293                 /// Write to minibuffer
 294                 ProhibitInput(current_view);
 295                 minibuffer->Set(s1, s2, s3);
 296                 fl_set_resource("flAlert.dismiss.label", _("Dismiss"));
 297                 fl_show_alert(s1.c_str(), s2.c_str(), s3.c_str(), 0);
 298                 AllowInput(current_view);
 299         } else {
 300                 /// Write to lyxerr
 301                 lyxerr << "----------------------------------------" << endl
 302                        << s1 << endl << s2 << endl << s3 << endl
 303                        << "----------------------------------------" << endl;
 304         }
 305 }
 306
 307
 308 // Alarms user of something related to files
 309 void WriteFSAlert(string const & s1, string const & s2)
 310 {
 311         WriteAlert(s1, s2, strerror(errno));
 312 }
 313
 314
 315 bool AskQuestion(string const & s1, string const & s2, string const & s3,
 316                  bool default_value)
 317 {
 318         if (!lyxrc.use_gui) {
 319                 lyxerr << "----------------------------------------" << endl
 320                        << s1 << endl;
 321                 if (!s2.empty())
 322                         lyxerr << s2 << endl;
 323                 if (!s3.empty())
 324                         lyxerr << s3 << endl;
 325                 lyxerr << "Assuming answer is "
 326                        << (default_value ? "yes" : "no")
 327                        << endl
 328                        << "----------------------------------------" << endl;
 329                 return default_value;
 330         }
 331
 332         fl_set_resource("flQuestion.yes.label", idex(_("Yes|Yy#y")));
 333         fl_set_resource("flQuestion.no.label", idex(_("No|Nn#n")));
 334         return fl_show_question((s1 + "\n" + s2 + "\n" + s3).c_str(), 0);
 335 }
 336
 337
 338 // Returns 1 for yes, 2 for no, 3 for cancel.
 339 int AskConfirmation(string const & s1, string const & s2, string const & s3,
 340                     int default_value)
 341 {
 342         if (!lyxrc.use_gui) {
 343                 lyxerr << "----------------------------------------" << endl
 344                        << s1 << endl;
 345                 if (!s2.empty())
 346                         lyxerr << s2 << endl;
 347                 if (!s3.empty())
 348                         lyxerr << s3 << endl;
 349                 lyxerr << "Assuming answer is ";
 350                 if (default_value == 1)
 351                         lyxerr << "yes";
 352                 else if (default_value == 2)
 353                         lyxerr << "no";
 354                 else
 355                         lyxerr << "cancel";
 356                 lyxerr << endl
 357                        << "----------------------------------------" << endl;
 358                 return default_value;
 359         }
 360
 361         fl_set_choices_shortcut(scex(_("Yes|Yy#y")),
 362                                 scex(_("No|Nn#n")),
 363                                 scex(_("Cancel|^[")));
 364         return fl_show_choice(s1.c_str(), s2.c_str(), s3.c_str(),
 365                               3, idex(_("Yes|Yy#y")),
 366                               idex(_("No|Nn#n")),
 367                               idex(_("Cancel|^[")), 3);
 368 }
 369
 370
 371 // Asks for a text
 372 pair<bool, string> const
 373 askForText(string const & msg, string const & dflt)
 374 {
 375         if (!lyxrc.use_gui) {
 376                 lyxerr << "----------------------------------------" << endl
 377                        << msg << endl
 378                        << "Assuming answer is " << dflt
 379                        << "----------------------------------------" << endl;
 380                 return make_pair<bool, string>(true, dflt);
 381         }
 382
 383         fl_set_resource("flInput.cancel.label", idex(_("Cancel|^[")));
 384         fl_set_resource("flInput.ok.label", idex(_("OK|#O")));
 385         fl_set_resource("flInput.clear.label", idex(_("Clear|#e")));
 386         char const * tmp = fl_show_input(msg.c_str(), dflt.c_str());
 387         if (tmp != 0)
 388           return make_pair<bool, string>(true, string(tmp));
 389         else
 390           return make_pair<bool, string>(false, string());
 391 }
 392
 393
 394 // Inform the user that the buffer is read-only, and that changes in the
 395 // dialog box that is to appear will be ignored.
 396 void WarnReadonly(string const & file)
 397 {
 398         WriteAlert(_("Any changes will be ignored"),
 399                    _("The document is read-only:"),
 400                    MakeDisplayPath(file));
 401 }
 402
 403 /// Get the dpi setting of the current screen
 404 float getScreenDPI()
 405 {
 406         Screen * scr = ScreenOfDisplay(fl_get_display(), fl_screen); //DefaultScreen(fl_get_display());
 407         return ((HeightOfScreen(scr) * 25.4 / HeightMMOfScreen(scr)) +
 408                 (WidthOfScreen(scr) * 25.4 / WidthMMOfScreen(scr))) / 2;
 409 }