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