QtHandlesUtils.h

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/*

Copyright (C) 2011-2018 Michael Goffioul

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_QtHandlesUtils_h)
#define octave_QtHandlesUtils_h 1

#include <QColor>
#include <QFont>
#include <QImage>
#include <QString>
#include <QStringList>

#include <string>

#include "graphics.h"

class QKeyEvent;
class QMouseEvent;

namespace QtHandles
{

  namespace Utils
  {
    QString fromStdString (const std::string& s);
    std::string toStdString (const QString& s);

    QStringList fromStringVector (const string_vector& v);
    string_vector toStringVector (const QStringList& l);

    Cell toCellString (const QStringList& l);

    template <typename T>
    QFont computeFont (const typename T::properties& props, int height = -1);

    QColor fromRgb (const Matrix& rgb);
    Matrix toRgb (const QColor& c);

    Qt::Alignment fromHVAlign (const std::string& halign,
                               const std::string& valign);

    std::string figureSelectionType (QMouseEvent *event,
                                     bool isDoubleClick = false);

    Matrix figureCurrentPoint (const graphics_object& fig, QMouseEvent *event);
    Matrix figureCurrentPoint (const graphics_object& fig);

    template <typename T>
    inline typename T::properties&
    properties (graphics_object obj)
    { return dynamic_cast<typename T::properties&> (obj.get_properties ()); }

    template <typename T>
    inline typename T::properties&
    properties (const graphics_handle& h)
    { return Utils::properties<T> (gh_manager::get_object (h)); }

    QImage makeImageFromCData (const octave_value& v, int width = -1,
                               int height = -1);

    octave_scalar_map makeKeyEventStruct (QKeyEvent *event);
  }

}

#endif