Implement uibuttongroup (bug #47513) * doc/interpreter/genpropdoc.m: Wire in uibuttongroup documentation creation * doc/interpreter/gui.txi: Add documentation node for uibuttongroup * doc/interpreter/module.mk: Wire in uibuttongroup documentation creation * doc/interpreter/plot.txi: Add documentation node for uibuttongroup * libgui/graphics/__init_qt__.cc (__init__): Set default styling for uibuttongroup * libgui/graphics/Backend.cc (toolkitObjectProperty): Add uibuttongroup * libgui/graphics/Backend.cc (Backend::initialize): Add uibuttongroup * libgui/graphics/Backend.cc (Backend::update): Add uibuttongroup * libgui/graphics/ButtonControl.cc (ButtonControl::update): Catch forced uncheck of selected button in buttongroup * libgui/graphics/Canvas.cc (Canvas::select_object): Allow uibuttongroup to be selected like uicontrol or uipanel * libgui/graphics/Figure.cc (hasUiControlChildren): Ensure that uibuttongroup is known to have children * libgui/graphics/module.mk: Wire in ButtonGroup * libgui/graphics/ObjectFactory.cc (ObjectFactory::createObject): Create ButtonGroup for uibuttongroup * libgui/graphics/QtHandlesUtils.cc (computeFont<uibuttongroup>): Make computeFont template for uibuttongroup * libgui/graphics/RadioButtonControl.cc (RadioButtonControl::RadioButtonControl): On creation of button add to ButtonGroup * libgui/graphics/ToggleButtonControl.cc (ToggleButtonControl::ToggleButtonControl): On creation of button add to ButtonGroup * libinterp/corefcn/gl-render.cc (opengl_renderer::draw): Allow uibuttongroup to be drawn * libinterp/corefcn/gl-render.cc (opengl_renderer::draw_uibuttongroup): Method to draw uibuttongroup * libinterp/corefcn/gl-render.h (opengl_renderer::draw_uibuttongroup): Method to draw uibuttongroup * libinterp/corefcn/graphics.cc (lookup_object_name): Wire in uibuttongroup * libinterp/corefcn/graphics.cc (make_graphics_object_from_type): Wire in uibuttongroup * libinterp/corefcn/graphics.cc (property_list::set): Wire in uibuttongroup * libinterp/corefcn/graphics.cc (property_list::lookup): Wire in uibuttongroup * libinterp/corefcn/graphics.cc (uibuttongroup::properties::get_boundingbox uibuttongroup::properties::set_units uibuttongroup::properties::update_units uibuttongroup::properties::set_fontunits uibuttongroup::properties::update_fontunits uibuttongroup::properties::get_fontsize_points uibuttongroup::properties::set_selectedobject): Add property methods for uibuttongroup * libinterp/corefcn/graphics.in.h: Add uibuttongroup * scripts/gui/module.mk: Wire in uibuttongroup script * scripts/help/__unimplemented__.m: Remove uibuttongroup from unimplemented * libgui/graphics/ButtonGroup.cc: Add QT toolkit ButtonGroup object * libgui/graphics/ButtonGroup.h: Add QT toolkit ButtonGroup object * scripts/gui/uibuttongroup.m: Create uibuttongroup script

/*

Copyright (C) 2016 Andrew Thornton

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
<http://www.gnu.org/licenses/>.

*/

#if ! defined (octave_ButtonGroup_h)
#define octave_ButtonGroup_h 1

#include "Object.h"

class QAbstractButton;
class QButtonGroup;
class QFrame;
class QLabel;
class QRadioButton;

namespace QtHandles
{

class Container;

class ButtonGroup : public Object
{
  Q_OBJECT

public:
  ButtonGroup (const graphics_object& go, QButtonGroup* buttongroup, QFrame* frame);
  ~ButtonGroup (void);

  Container* innerContainer (void) { return m_container; }

  bool eventFilter (QObject* watched, QEvent* event);

  static ButtonGroup* create (const graphics_object& go);

  void addButton (QAbstractButton* btn);

  void selectNothing (void);

protected:
  void update (int pId);
  void redraw (void);

private slots:
  void buttonToggled (bool toggled);
  void buttonClicked (QAbstractButton* btn);

private:
  void updateLayout (void);

private:
  QButtonGroup* m_buttongroup;
  QRadioButton* m_hiddenbutton;
  Container* m_container;
  QLabel* m_title;
  bool m_blockUpdates;
};

}; // namespace QtHandles

#endif