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                 // The math popups should be closed only if we switch
 155                 // to a readonly buffer
 156                 if (fd_panel) {
 157                         if (fd_panel->panel->visible) {
 158                                 fl_hide_form(fd_panel->panel);
 159                         }
 160                 }
 161                 if (fd_delim) {
 162                         if (fd_delim->delim->visible) {
 163                                 fl_hide_form(fd_delim->delim);
 164                         }
 165                 }
 166                 if (fd_deco) {
 167                         if (fd_deco->deco->visible) {
 168                                 fl_hide_form(fd_deco->deco);
 169                         }
 170                 }
 171                 if (fd_space) {
 172                         if (fd_space->space->visible) {
 173                                 fl_hide_form(fd_space->space);
 174                         }
 175                 }
 176                 if (fd_matrix) {
 177                         if (fd_matrix->matrix->visible) {
 178                                 fl_hide_form(fd_matrix->matrix);
 179                         }
 180                 }
 181         }
 182         HideFiguresPopups();
 183 }
 184
 185 // Extract shortcut from <ident>|<shortcut> string
 186 char const * flyx_shortcut_extract(char const * sc)
 187 {
 188         // Find '|' in the sc and return the string after that.
 189         register char const * sd = sc;
 190         while(sd[0]!= 0 && sd[0] != '|') ++sd;
 191
 192         if (sd[0] == '|') {
 193                 ++sd;
 194                 //lyxerr << sd << endl;
 195                 return sd;
 196         }
 197         return "";
 198 }
 199
 200
 201 // Extract identifier from <ident>|<shortcut> string
 202 char const * flyx_ident_extract(char const * sc)
 203 {
 204         register char const * se = sc;
 205         while(se[0]!= 0 && se[0] != '|') ++se;
 206
 207         if (se[0] == 0) return sc;
 208
 209         char * sb = new char[se - sc + 1];
 210         int index = 0;
 211         register char const * sd = sc;
 212         while (sd != se) {
 213                 sb[index] = sd[0];
 214                 ++index; ++sd;
 215         }
 216         sb[index] = 0;
 217         return sb;
 218 }
 219
 220
 221 void WriteStatus(MiniBuffer * minib, string const & s)
 222 {
 223         if (minib) {
 224                 minib->Set(s);
 225                 minib->Store();
 226         } else
 227                 lyxerr << s << endl;
 228 }
 229
 230
 231 //
 232 void WriteAlert(string const & s1, string const & s2, string const & s3)
 233 {
 234         MiniBuffer * minibuffer = 0;
 235         if (current_view && current_view->owner())
 236                 minibuffer = current_view->owner()->getMiniBuffer();
 237         if (minibuffer) {
 238                 /// Write to minibuffer
 239                 ProhibitInput(current_view);
 240                 minibuffer->Set(s1, s2, s3);
 241                 fl_set_resource("flAlert.dismiss.label", _("Dismiss"));
 242                 fl_show_alert(s1.c_str(), s2.c_str(), s3.c_str(), 0);
 243                 AllowInput(current_view);
 244         } else {
 245                 /// Write to lyxerr
 246                 lyxerr << "----------------------------------------" << endl
 247                        << s1 << endl << s2 << endl << s3 << endl
 248                        << "----------------------------------------" << endl;
 249         }
 250 }
 251
 252
 253 // Alarms user of something related to files
 254 void WriteFSAlert(string const & s1, string const & s2)
 255 {
 256         WriteAlert(s1, s2, strerror(errno));
 257 }
 258
 259
 260 bool AskQuestion(string const & s1, string const & s2, string const & s3,
 261                  bool default_value)
 262 {
 263         if (!lyxrc.use_gui) {
 264                 lyxerr << "----------------------------------------" << endl
 265                        << s1 << endl;
 266                 if (!s2.empty())
 267                         lyxerr << s2 << endl;
 268                 if (!s3.empty())
 269                         lyxerr << s3 << endl;
 270                 lyxerr << "Assuming answer is "
 271                        << (default_value ? "yes" : "no")
 272                        << endl
 273                        << "----------------------------------------" << endl;
 274                 return default_value;
 275         }
 276
 277         fl_set_resource("flQuestion.yes.label", idex(_("Yes|Yy#y")));
 278         fl_set_resource("flQuestion.no.label", idex(_("No|Nn#n")));
 279         return fl_show_question((s1 + "\n" + s2 + "\n" + s3).c_str(), 0);
 280 }
 281
 282
 283 // Returns 1 for yes, 2 for no, 3 for cancel.
 284 int AskConfirmation(string const & s1, string const & s2, string const & s3,
 285                     int default_value)
 286 {
 287         if (!lyxrc.use_gui) {
 288                 lyxerr << "----------------------------------------" << endl
 289                        << s1 << endl;
 290                 if (!s2.empty())
 291                         lyxerr << s2 << endl;
 292                 if (!s3.empty())
 293                         lyxerr << s3 << endl;
 294                 lyxerr << "Assuming answer is ";
 295                 if (default_value == 1)
 296                         lyxerr << "yes";
 297                 else if (default_value == 2)
 298                         lyxerr << "no";
 299                 else
 300                         lyxerr << "cancel";
 301                 lyxerr << endl
 302                        << "----------------------------------------" << endl;
 303                 return default_value;
 304         }
 305
 306         fl_set_choices_shortcut(scex(_("Yes|Yy#y")),
 307                                 scex(_("No|Nn#n")),
 308                                 scex(_("Cancel|^[")));
 309         return fl_show_choice(s1.c_str(), s2.c_str(), s3.c_str(),
 310                               3, idex(_("Yes|Yy#y")),
 311                               idex(_("No|Nn#n")),
 312                               idex(_("Cancel|^[")), 3);
 313 }
 314
 315
 316 // Asks for a text
 317 pair<bool, string> const
 318 askForText(string const & msg, string const & dflt)
 319 {
 320         if (!lyxrc.use_gui) {
 321                 lyxerr << "----------------------------------------" << endl
 322                        << msg << endl
 323                        << "Assuming answer is " << dflt
 324                        << "----------------------------------------" << endl;
 325                 return make_pair<bool, string>(true, dflt);
 326         }
 327
 328         fl_set_resource("flInput.cancel.label", idex(_("Cancel|^[")));
 329         fl_set_resource("flInput.ok.label", idex(_("OK|#O")));
 330         fl_set_resource("flInput.clear.label", idex(_("Clear|#e")));
 331         char const * tmp = fl_show_input(msg.c_str(), dflt.c_str());
 332         if (tmp != 0)
 333           return make_pair<bool, string>(true, string(tmp));
 334         else
 335           return make_pair<bool, string>(false, string());
 336 }
 337
 338
 339 // Inform the user that the buffer is read-only, and that changes in the
 340 // dialog box that is to appear will be ignored.
 341 void WarnReadonly(string const & file)
 342 {
 343         WriteAlert(_("Any changes will be ignored"),
 344                    _("The document is read-only:"),
 345                    MakeDisplayPath(file));
 346 }
 347
 348 /// Get the dpi setting of the current screen
 349 float getScreenDPI()
 350 {
 351         Screen * scr = ScreenOfDisplay(fl_get_display(), fl_screen); //DefaultScreen(fl_get_display());
 352         return ((HeightOfScreen(scr) * 25.4 / HeightMMOfScreen(scr)) +
 353                 (WidthOfScreen(scr) * 25.4 / WidthMMOfScreen(scr))) / 2;
 354 }