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