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