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