src/frontends/qt2/QPreambleDialog.C

   1 /**
   2  * \file QPreambleDialog.C
   3  * Copyright 2001 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author John Levon <moz@compsoc.man.ac.uk>
   7  */
   8
   9 #include <config.h>
  10 #include <fstream>
  11
  12 #include "support/lyxlib.h"
  13 #include "support/forkedcall.h"
  14 #include "support/filetools.h"
  15 #include "gettext.h"
  16 #include "LyXView.h"
  17 #include "ControlPreamble.h"
  18
  19 #include "QPreamble.h"
  20 #include "QPreambleDialog.h"
  21
  22 #include <qpushbutton.h>
  23 #include <qmultilineedit.h>
  24 #include <qinputdialog.h>
  25
  26 using std::getline;
  27
  28 QPreambleDialog::QPreambleDialog(QPreamble * form)
  29         : QPreambleDialogBase(0, 0, false, 0),
  30         form_(form)
  31 {
  32         connect(okPB, SIGNAL(clicked()),
  33                 form, SLOT(slotOK()));
  34         connect(applyPB, SIGNAL(clicked()),
  35                 form, SLOT(slotApply()));
  36         connect(closePB, SIGNAL(clicked()),
  37                 form, SLOT(slotClose()));
  38 }
  39
  40
  41 void QPreambleDialog::closeEvent(QCloseEvent * e)
  42 {
  43         form_->slotWMHide();
  44         e->accept();
  45 }
  46
  47
  48 void QPreambleDialog::change_adaptor()
  49 {
  50         form_->changed();
  51 }
  52
  53
  54 void QPreambleDialog::editClicked()
  55 {
  56         // find an editor
  57         string editor = GetEnv("EDITOR");
  58         if (editor.empty()) {
  59                 static string lastentry = "";
  60                 editor = QInputDialog::getText(
  61                         _("Enter editor program"), _("Editor"), QLineEdit::Normal,
  62                         lastentry.c_str()).latin1();
  63                 if (editor.empty())
  64                         return;
  65                 lastentry = editor;
  66         }
  67
  68         string const text(preambleLE->text().latin1());
  69         string const filename(lyx::tempName("", "preamble"));
  70         std::ofstream file(filename.c_str());
  71
  72         // FIXME ?
  73         if (!file)
  74                 return;
  75
  76         file << text;
  77
  78         file.close();
  79
  80         editor += " " + filename;
  81
  82         Forkedcall call;
  83
  84         // FIXME: make async
  85         if (call.startscript(Forkedcall::Wait, editor)) {
  86                 lyx::unlink(filename);
  87                 return;
  88         }
  89
  90         std::ifstream in(filename.c_str());
  91
  92         if (!in) {
  93                 lyx::unlink(filename);
  94                 return;
  95         }
  96
  97         string newtext;
  98         string line;
  99
 100         while (getline(in, line)) {
 101                 newtext += line + "\n";
 102         }
 103
 104         in.close();
 105         lyx::unlink(filename);
 106         preambleLE->setText(newtext.c_str());
 107 }