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