view libgui/src/qt-utils.h @ 30877:2bb539746697

consider env variables for location of temp files (bug #62215) * resource-manager.cc: include QStandardPaths; (octave_getenv): new function for using getenv with std::string; (get_temp_dir): new function adapted from mkoctfile.in.cc for determining the most appropriate directory for temporary files; (create_tmp_file): use new function get_temp_dir * resource-manager.h: new functions octave_getenv and get_temp_dir
author Torsten Lilge <ttl-octave@mailbox.org>
date Thu, 31 Mar 2022 13:30:03 +0200
parents 796f54d4ddbf
children c6d54dd31a7e
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////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2020-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Octave is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

#if ! defined (octave_qt_utils_h)
#define octave_qt_utils_h 1

#include <list>

#include <QFontMetrics>
#include <QList>

namespace octave
{
  template <typename T>
  inline QList<T>
  std_list_to_qt_list (const std::list<T>& lst)
  {
#if defined (HAVE_QLIST_ITERATOR_CONSTRUCTOR)
    return QList<T> (lst.begin (), lst.end ());
#else
    return QList<T>::fromStdList (lst);
#endif
  }

  inline int
  qt_fontmetrics_horizontal_advance (const QFontMetrics& fm, QChar ch)
  {
#if defined (HAVE_QFONTMETRICS_HORIZONTAL_ADVANCE)
    return fm.horizontalAdvance (ch);
#else
    return fm.width (ch);
#endif
  }

  inline int
  qt_fontmetrics_horizontal_advance (const QFontMetrics& fm,
                                     const QString& text, int len = -1)
  {
#if defined (HAVE_QFONTMETRICS_HORIZONTAL_ADVANCE)
    return fm.horizontalAdvance (text, len);
#else
    return fm.width (text, len);
#endif
  }
}

#endif