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 "Lsstream.h"
  18 #include "support/lyxlib.h"
  19 #include "support/forkedcall.h"
  20 #include "support/filetools.h"
  21 #include "gettext.h"
  22 #include "LyXView.h"
  23 #include "ControlPreamble.h"
  24
  25 #include "QPreamble.h"
  26 #include "QPreambleDialog.h"
  27
  28 #include <qpushbutton.h>
  29 #include <qmultilineedit.h>
  30 #include <qinputdialog.h>
  31
  32 #include <fstream>
  33
  34 using std::getline;
  35
  36 QPreambleDialog::QPreambleDialog(QPreamble * form)
  37         : QPreambleDialogBase(0, 0, false, 0),
  38         form_(form)
  39 {
  40         connect(okPB, SIGNAL(clicked()),
  41                 form, SLOT(slotOK()));
  42         connect(applyPB, SIGNAL(clicked()),
  43                 form, SLOT(slotApply()));
  44         connect(closePB, SIGNAL(clicked()),
  45                 form, SLOT(slotClose()));
  46 }
  47
  48
  49 void QPreambleDialog::closeEvent(QCloseEvent * e)
  50 {
  51         form_->slotWMHide();
  52         e->accept();
  53 }
  54
  55
  56 void QPreambleDialog::change_adaptor()
  57 {
  58         form_->changed();
  59 }
  60
  61
  62 void QPreambleDialog::editClicked()
  63 {
  64         // find an editor
  65         string editor = GetEnv("EDITOR");
  66         if (editor.empty()) {
  67                 static string lastentry;
  68                 editor = QInputDialog::getText(
  69                         _("Enter editor program"), _("Editor"), QLineEdit::Normal,
  70                         lastentry.c_str()).latin1();
  71                 if (editor.empty())
  72                         return;
  73                 lastentry = editor;
  74         }
  75
  76         string const text(preambleLE->text().latin1());
  77         string const filename(lyx::tempName("", "preamble"));
  78         std::ofstream file(filename.c_str());
  79
  80         // FIXME ?
  81         if (!file)
  82                 return;
  83
  84         file << text;
  85
  86         file.close();
  87
  88         editor += ' ' + filename;
  89
  90         Forkedcall call;
  91
  92         // FIXME: make async
  93         if (call.startscript(Forkedcall::Wait, editor)) {
  94                 lyx::unlink(filename);
  95                 return;
  96         }
  97
  98         std::ifstream in(filename.c_str());
  99
 100         if (!in) {
 101                 lyx::unlink(filename);
 102                 return;
 103         }
 104
 105         ostringstream newtext;
 106         newtext << in.rdbuf();
 107
 108         // close the files before we delete the file
 109         in.close();
 110
 111         lyx::unlink(filename);
 112         preambleLE->setText(newtext.str().c_str());
 113 }