make stand-alone windows from dock widgets when floating (bug #38785) * octave-dock-widget.cc: new file, (constructor): moved from octave-dock-widget.h, disable floating and closing by qt, add custom title bar with buttons for closing and floating, (destructor): saving state and geometry depending on state, (set_title): new function for setting the title of the custom title bar, (make_window): make dock widget a stand-alone window by reparenting to 0 and restore last geometry, (make_widget): readd the widget to the main window, the last position and size can not be restored due to previous reparenting (change_floating): slot for dock button in title bar (change_visibility): slot for hiding the widget * octave-dock-widget.h: removed signal connection and slot for floating by qt, moved constructor to *.cc, declaration of new functions and slots (main_win): new function returning the main window * main-window.cc(notice-settings): when updating icons, use a list of all dock widgets instead of searching childrens that may have set their parent to 0 (set_window_layout): use make_window instead of setWindowsFlag for floating, do not use grouping in settings because of possibly nested groups (write_settings): saving the state and geometry of the dock-widgets is moved into the dock widget's destructors main-window.n(dock_widget_list): function returning a list of all dock widgets * documentation-dock-widget.cc, files-dock-widget.cc, history-dock-widget.cc, file-editor.cc, terminal-dock-widget.cc, workspace-view.cc: use new function set_title instead of setWindowTitle * files-dock-widget.cc, file-editor.cc, : replace parent () by main_win () * widget-dock.png, widget-undock.png, widget-close.png: new icons * resource.qrc: new icons widget-dock.png, widget-undock.png, widget-close.png * module-mk: new icons widget-dock.png, widget-undock.png, widget-close.png and new file octave-dock-widget.cc

/*

Copyright (C) 2013 John W. Eaton
Copyright (C) 2011-2012 Jacob Dawid

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/>.

*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "terminal-dock-widget.h"

terminal_dock_widget::terminal_dock_widget (QWidget *p)
  : octave_dock_widget (p), terminal (QTerminal::create (p))
{
  terminal->setObjectName ("OctaveTerminal");
  terminal->setFocusPolicy (Qt::StrongFocus);

  setObjectName ("TerminalDockWidget");
  setWindowIcon (QIcon(":/actions/icons/logo.png"));
  set_title (tr ("Command Window"));

  setWidget (terminal);
}

bool
terminal_dock_widget::has_focus (void) const
{
  QWidget *w = widget ();

  return w->hasFocus ();
}

void
terminal_dock_widget::focus (void)
{
  octave_dock_widget::focus ();

  QWidget *w = widget ();

  w->setFocus ();
  w->activateWindow ();
  w->raise ();
}