src/frontends/controllers/ControlDocument.C

   1 // -*- C++ -*-
   2 /**
   3  * \file ControlDocument.C
   4  * This file is part of LyX, the document processor.
   5  * Licence details can be found in the file COPYING.
   6  *
   7  * \author Edwin Leuven
   8  *
   9  * Full author contact details are available in file CREDITS
  10  */
  11
  12 #include <config.h>
  13
  14 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include "BufferView.h"
  19 #include "ControlDocument.h"
  20 #include "ViewBase.h"
  21
  22 #include "gettext.h"
  23 #include "lyxfind.h"
  24
  25 #include "buffer.h"
  26 #include "language.h"
  27 #include "lyx_main.h"
  28 #include "lyxtextclass.h"
  29 #include "lyxtextclasslist.h"
  30 #include "CutAndPaste.h"
  31
  32 #include "frontends/Liason.h"
  33 #include "frontends/LyXView.h"
  34 #include "frontends/Alert.h"
  35
  36 #include "support/lstrings.h"
  37 #include "support/filetools.h"
  38
  39 using Liason::setMinibuffer;
  40
  41
  42 ControlDocument::ControlDocument(LyXView & lv, Dialogs & d)
  43         : ControlDialogBD(lv, d), bp_(0)
  44 {
  45 }
  46
  47 ControlDocument::~ControlDocument()
  48 {}
  49
  50
  51 void ControlDocument::showPreamble()
  52 {
  53 }
  54
  55 BufferParams & ControlDocument::params()
  56 {
  57         lyx::Assert(bp_.get());
  58         return *bp_;
  59 }
  60
  61 LyXTextClass ControlDocument::textClass()
  62 {
  63         return textclasslist[bp_->textclass];
  64 }
  65
  66
  67 void ControlDocument::apply()
  68 {
  69         if (!bufferIsAvailable())
  70                 return;
  71
  72         setLanguage();
  73         bool succes = classApply();
  74         lv_.view()->redoCurrentBuffer();
  75
  76         view().apply();
  77         buffer()->params = *bp_;
  78
  79         buffer()->markDirty();
  80
  81         Liason::setMinibuffer(&lv_, _("Document Settings Applied"));
  82 }
  83
  84
  85 void ControlDocument::setParams()
  86 {
  87         if (!bp_.get())
  88                 bp_.reset(new BufferParams());
  89
  90         /// Set the buffer parameters
  91         *bp_ = buffer()->params;
  92 }
  93
  94 void ControlDocument::setLanguage()
  95 {
  96         Language const * oldL = buffer()->params.language;
  97         Language const * newL = bp_->language;
  98
  99         if (oldL != newL
 100             && oldL->RightToLeft() == newL->RightToLeft()
 101             && !lv_.buffer()->isMultiLingual())
 102                 lv_.buffer()->changeLanguage(oldL, newL);
 103 }
 104
 105
 106 bool ControlDocument::classApply()
 107 {
 108         BufferParams &params = lv_.buffer()->params;
 109         unsigned int const old_class = bp_->textclass;
 110         // exit if nothing changes
 111         if (params.textclass == old_class)
 112                 return true;
 113
 114         // try to load new_class
 115         if (!textclasslist[params.textclass].load()) {
 116                 // problem changing class
 117                 // -- warn user (to retain old style)
 118                 Alert::alert(_("Conversion Errors!"),
 119                              _("Errors loading new document class."),
 120                              _("Reverting to original document class."));
 121                 return false;
 122         }
 123
 124         // successfully loaded
 125         Liason::setMinibuffer(&lv_,
 126                               _("Converting document to new document class..."));
 127         int ret = CutAndPaste::SwitchLayoutsBetweenClasses(
 128                 old_class, params.textclass,
 129                 &*(lv_.buffer()->paragraphs.begin()),
 130                 lv_.buffer()->params);
 131         if (ret) {
 132                 string s;
 133                 if (ret == 1) {
 134                         s = _("One paragraph couldn't be converted");
 135                 } else {
 136                         s += tostr(ret);
 137                         s += _(" paragraphs couldn't be converted");
 138                 }
 139                 Alert::alert(_("Conversion Errors!"),s,
 140                              _("into chosen document class"));
 141         }
 142         //lv_.view()->redoCurrentBuffer();
 143         return true;
 144 }
 145
 146 void ControlDocument::saveAsDefault()
 147 {
 148         lv_.buffer()->params.preamble = bp_->preamble;
 149
 150         string const fname = AddName(AddPath(user_lyxdir, "templates/"),
 151                                      "defaults.lyx");
 152         Buffer defaults(fname);
 153         defaults.params = params();
 154
 155         // add an empty paragraph. Is this enough?
 156         defaults.paragraphs.set(new Paragraph);
 157
 158         defaults.writeFile(defaults.fileName());
 159
 160 }