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 "gettext.h"
  23 #include "figure_form.h"
  24 #include "lyx_cb.h"
  25 #include "lyx_main.h"
  26 #include "print_form.h"
  27 #include "sp_form.h"
  28 #include "LyXView.h"
  29 #include "bufferview_funcs.h"
  30 #include "support/filetools.h"
  31 #include "lyxrc.h"
  32 #include "lyxfunc.h"
  33
  34 using std::pair;
  35 using std::make_pair;
  36 using std::endl;
  37
  38 extern BufferView * current_view;
  39
  40 extern FD_form_figure * fd_form_figure;
  41 extern FD_form_sendto * fd_form_sendto;
  42 extern FD_form_spell_check * fd_form_spell_check;
  43 extern FD_form_spell_options * fd_form_spell_options;
  44
  45 extern void HideFiguresPopups();
  46
  47 // Prevents LyX from being killed when the close box is pressed in a popup.
  48 extern "C" int CancelCloseBoxCB(FL_FORM *, void *)
  49 {
  50         return FL_CANCEL;
  51 }
  52 // Redraw the form (on receipt of a Signal indicating, for example,
  53 // that the xform colors have been re-mapped).
  54 void RedrawAllBufferRelatedDialogs()
  55 {
  56         if (fd_form_figure->form_figure->visible) {
  57                 fl_redraw_form(fd_form_figure->form_figure);
  58         }
  59         if (fd_form_sendto->form_sendto->visible) {
  60                 fl_redraw_form(fd_form_sendto->form_sendto);
  61         }
  62         if (fd_form_spell_check &&
  63             fd_form_spell_check->form_spell_check->visible) {
  64                 fl_redraw_form(fd_form_spell_check->form_spell_check);
  65         }
  66         if (fd_form_spell_options &&
  67             fd_form_spell_options->form_spell_options->visible) {
  68                 fl_redraw_form(fd_form_spell_options->form_spell_options);
  69         }
  70 }
  71
  72 // Prevents LyX from crashing when no buffers available
  73 // This is also one of the functions that we _really_ dont want
  74 // we should try to finds way to help us with that.
  75 // The signal/slot mechanism can probably help.
  76 void CloseAllBufferRelatedDialogs()
  77 {
  78         // don't forget to check that dynamically created forms
  79         // have been created otherwise hiding one could cause a crash
  80         // need the visible check otherwise XForms prints a warning
  81         // if hiding an invisible form
  82         if (fd_form_figure->form_figure->visible) {
  83                 fl_hide_form(fd_form_figure->form_figure);
  84         }
  85         if (fd_form_sendto->form_sendto->visible) {
  86                 fl_hide_form(fd_form_sendto->form_sendto);
  87         }
  88         if (fd_form_spell_check) {
  89                 if (fd_form_spell_check->form_spell_check->visible) {
  90                         fl_trigger_object(fd_form_spell_check->done);
  91                 }
  92         }
  93         HideFiguresPopups();
  94 }
  95
  96 // This is another function we really don't want.
  97 // Again the Signal/Slot mechanism is tailor made for this task.
  98 void updateAllVisibleBufferRelatedDialogs(bool)
  99 {
 100         HideFiguresPopups();
 101 }
 102
 103 // Extract shortcut from <ident>|<shortcut> string
 104 char const * flyx_shortcut_extract(char const * sc)
 105 {
 106         // Find '|' in the sc and return the string after that.
 107         register char const * sd = sc;
 108         while(sd[0]!= 0 && sd[0] != '|') ++sd;
 109
 110         if (sd[0] == '|') {
 111                 ++sd;
 112                 //lyxerr << sd << endl;
 113                 return sd;
 114         }
 115         return "";
 116 }
 117
 118
 119 // Extract identifier from <ident>|<shortcut> string
 120 char const * flyx_ident_extract(char const * sc)
 121 {
 122         register char const * se = sc;
 123         while(se[0]!= 0 && se[0] != '|') ++se;
 124
 125         if (se[0] == 0) return sc;
 126
 127         char * sb = new char[se - sc + 1];
 128         int index = 0;
 129         register char const * sd = sc;
 130         while (sd != se) {
 131                 sb[index] = sd[0];
 132                 ++index; ++sd;
 133         }
 134         sb[index] = 0;
 135         return sb;
 136 }
 137
 138
 139 //
 140 void WriteAlert(string const & s1, string const & s2, string const & s3)
 141 {
 142         LyXFunc * lfun = 0;
 143         if (current_view && current_view->owner())
 144                 lfun = current_view->owner()->getLyXFunc();
 145         if (lfun) {
 146                 /// Write to minibuffer
 147                 ProhibitInput(current_view);
 148                 string const msg = s1 + ' ' + s2 + ' ' + s3;
 149                 lfun->Dispatch(LFUN_MESSAGE, msg);
 150                 fl_set_resource("flAlert.dismiss.label", _("Dismiss"));
 151                 fl_show_alert(s1.c_str(), s2.c_str(), s3.c_str(), 0);
 152                 AllowInput(current_view);
 153         } else {
 154                 /// Write to lyxerr
 155                 lyxerr << "----------------------------------------" << endl
 156                        << s1 << endl << s2 << endl << s3 << endl
 157                        << "----------------------------------------" << endl;
 158         }
 159 }
 160
 161
 162 // Alarms user of something related to files
 163 void WriteFSAlert(string const & s1, string const & s2)
 164 {
 165         WriteAlert(s1, s2, strerror(errno));
 166 }
 167
 168
 169 bool AskQuestion(string const & s1, string const & s2, string const & s3,
 170                  bool default_value)
 171 {
 172         if (!lyxrc.use_gui) {
 173                 lyxerr << "----------------------------------------" << endl
 174                        << s1 << endl;
 175                 if (!s2.empty())
 176                         lyxerr << s2 << endl;
 177                 if (!s3.empty())
 178                         lyxerr << s3 << endl;
 179                 lyxerr << "Assuming answer is "
 180                        << (default_value ? "yes" : "no")
 181                        << endl
 182                        << "----------------------------------------" << endl;
 183                 return default_value;
 184         }
 185
 186         fl_set_resource("flQuestion.yes.label", idex(_("Yes|Yy#y")));
 187         fl_set_resource("flQuestion.no.label", idex(_("No|Nn#n")));
 188         return fl_show_question((s1 + "\n" + s2 + "\n" + s3).c_str(), 0);
 189 }
 190
 191
 192 // Returns 1 for yes, 2 for no, 3 for cancel.
 193 int AskConfirmation(string const & s1, string const & s2, string const & s3,
 194                     int default_value)
 195 {
 196         if (!lyxrc.use_gui) {
 197                 lyxerr << "----------------------------------------" << endl
 198                        << s1 << endl;
 199                 if (!s2.empty())
 200                         lyxerr << s2 << endl;
 201                 if (!s3.empty())
 202                         lyxerr << s3 << endl;
 203                 lyxerr << "Assuming answer is ";
 204                 if (default_value == 1)
 205                         lyxerr << "yes";
 206                 else if (default_value == 2)
 207                         lyxerr << "no";
 208                 else
 209                         lyxerr << "cancel";
 210                 lyxerr << endl
 211                        << "----------------------------------------" << endl;
 212                 return default_value;
 213         }
 214
 215         fl_set_choices_shortcut(scex(_("Yes|Yy#y")),
 216                                 scex(_("No|Nn#n")),
 217                                 scex(_("Cancel|^[")));
 218         return fl_show_choice(s1.c_str(), s2.c_str(), s3.c_str(),
 219                               3, idex(_("Yes|Yy#y")),
 220                               idex(_("No|Nn#n")),
 221                               idex(_("Cancel|^[")), 3);
 222 }
 223
 224
 225 // Asks for a text
 226 pair<bool, string> const
 227 askForText(string const & msg, string const & dflt)
 228 {
 229         if (!lyxrc.use_gui) {
 230                 lyxerr << "----------------------------------------" << endl
 231                        << msg << endl
 232                        << "Assuming answer is " << dflt
 233                        << "----------------------------------------" << endl;
 234                 return make_pair<bool, string>(true, dflt);
 235         }
 236
 237         fl_set_resource("flInput.cancel.label", idex(_("Cancel|^[")));
 238         fl_set_resource("flInput.ok.label", idex(_("OK|#O")));
 239         fl_set_resource("flInput.clear.label", idex(_("Clear|#e")));
 240         char const * tmp = fl_show_input(msg.c_str(), dflt.c_str());
 241         if (tmp != 0)
 242           return make_pair<bool, string>(true, string(tmp));
 243         else
 244           return make_pair<bool, string>(false, string());
 245 }
 246
 247
 248 // Inform the user that the buffer is read-only, and that changes in the
 249 // dialog box that is to appear will be ignored.
 250 void WarnReadonly(string const & file)
 251 {
 252         WriteAlert(_("Any changes will be ignored"),
 253                    _("The document is read-only:"),
 254                    MakeDisplayPath(file));
 255 }
 256
 257 /// Get the dpi setting of the current screen
 258 float getScreenDPI()
 259 {
 260         Screen * scr = ScreenOfDisplay(fl_get_display(), fl_screen); //DefaultScreen(fl_get_display());
 261         return ((HeightOfScreen(scr) * 25.4 / HeightMMOfScreen(scr)) +
 262                 (WidthOfScreen(scr) * 25.4 / WidthMMOfScreen(scr))) / 2;
 263 }