src/frontends/qt2/QPreambleDialog.C

   1 /**
   2  * \file QPreambleDialog.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include <fstream>
  18
  19 #include "support/lyxlib.h"
  20 #include "support/forkedcall.h"
  21 #include "support/filetools.h"
  22 #include "gettext.h"
  23 #include "LyXView.h"
  24 #include "ControlPreamble.h"
  25
  26 #include "QPreamble.h"
  27 #include "QPreambleDialog.h"
  28
  29 #include <qpushbutton.h>
  30 #include <qmultilineedit.h>
  31 #include <qinputdialog.h>
  32
  33 using std::getline;
  34
  35 QPreambleDialog::QPreambleDialog(QPreamble * form)
  36         : QPreambleDialogBase(0, 0, false, 0),
  37         form_(form)
  38 {
  39         connect(okPB, SIGNAL(clicked()),
  40                 form, SLOT(slotOK()));
  41         connect(applyPB, SIGNAL(clicked()),
  42                 form, SLOT(slotApply()));
  43         connect(closePB, SIGNAL(clicked()),
  44                 form, SLOT(slotClose()));
  45 }
  46
  47
  48 void QPreambleDialog::closeEvent(QCloseEvent * e)
  49 {
  50         form_->slotWMHide();
  51         e->accept();
  52 }
  53
  54
  55 void QPreambleDialog::change_adaptor()
  56 {
  57         form_->changed();
  58 }
  59
  60
  61 void QPreambleDialog::editClicked()
  62 {
  63         // find an editor
  64         string editor = GetEnv("EDITOR");
  65         if (editor.empty()) {
  66                 static string lastentry = "";
  67                 editor = QInputDialog::getText(
  68                         _("Enter editor program"), _("Editor"), QLineEdit::Normal,
  69                         lastentry.c_str()).latin1();
  70                 if (editor.empty())
  71                         return;
  72                 lastentry = editor;
  73         }
  74
  75         string const text(preambleLE->text().latin1());
  76         string const filename(lyx::tempName("", "preamble"));
  77         std::ofstream file(filename.c_str());
  78
  79         // FIXME ?
  80         if (!file)
  81                 return;
  82
  83         file << text;
  84
  85         file.close();
  86
  87         editor += " " + filename;
  88
  89         Forkedcall call;
  90
  91         // FIXME: make async
  92         if (call.startscript(Forkedcall::Wait, editor)) {
  93                 lyx::unlink(filename);
  94                 return;
  95         }
  96
  97         std::ifstream in(filename.c_str());
  98
  99         if (!in) {
 100                 lyx::unlink(filename);
 101                 return;
 102         }
 103
 104         string newtext;
 105         string line;
 106
 107         while (getline(in, line)) {
 108                 newtext += line + "\n";
 109         }
 110
 111         in.close();
 112         lyx::unlink(filename);
 113         preambleLE->setText(newtext.c_str());
 114 }