+ implement mechanism to connect QAction signal with class method
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src/Gui/ActionFunction.cpp
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71
src/Gui/ActionFunction.cpp
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/***************************************************************************
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* Copyright (c) 2015 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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#endif
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#include "ActionFunction.h"
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using namespace Gui;
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namespace Gui {
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class ActionFunctionPrivate
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{
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public:
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QMap<QAction*, boost::function<void()> > actionFuncMap;
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};
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}
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ActionFunction::ActionFunction(QObject* parent)
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: QObject(parent), d_ptr(new ActionFunctionPrivate())
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{
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}
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ActionFunction::~ActionFunction()
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{
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}
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void ActionFunction::mapSignal(QAction* action, boost::function<void()> func)
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{
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Q_D(ActionFunction);
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d->actionFuncMap[action] = func;
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connect(action, SIGNAL(triggered()), this, SLOT(trigger()));
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}
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void ActionFunction::trigger()
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{
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Q_D(ActionFunction);
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QAction* a = qobject_cast<QAction*>(sender());
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QMap<QAction*, boost::function<void()> >::iterator it = d->actionFuncMap.find(a);
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if (it != d->actionFuncMap.end()) {
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// invoke the class function here
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it.value()();
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}
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}
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#include "moc_ActionFunction.cpp"
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src/Gui/ActionFunction.h
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86
src/Gui/ActionFunction.h
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/***************************************************************************
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* Copyright (c) 2015 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef GUI_ACTIONFUNCTION_H
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#define GUI_ACTIONFUNCTION_H
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#include <QObject>
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#include <boost/function.hpp>
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namespace Gui
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{
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class ActionFunctionPrivate;
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/*!
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The class connects the triggered() signal of a QAction instance with the method
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of a usual C++ class not derived from QObject.
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The class can e.g be used to fill up the context-menu of the view provider classes.
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\code
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void MyViewProvider::setupContextMenu(QMenu* menu, QObject* receiver, const char* member)
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{
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Gui::ActionFunction* func = new Gui::ActionFunction(menu);
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QAction* a1 = menu->addAction(QObject::tr("Menu item 1..."));
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func->mapSignal(a1, boost::bind(&MyViewProvider::doItem1, this));
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QAction* a2 = menu->addAction(QObject::tr("Menu item 2..."));
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func->mapSignal(a2, boost::bind(&MyViewProvider::doItem2, this));
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QAction* a3 = menu->addAction(QObject::tr("Menu item 3..."));
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func->mapSignal(a3, boost::bind(&MyViewProvider::doItem3, this));
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}
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\endcode
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@author Werner Mayer
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http://www.boost.org/doc/libs/1_57_0/libs/bind/bind.html#with_boost_function
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*/
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class GuiExport ActionFunction : public QObject
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{
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Q_OBJECT
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public:
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/// Constructor
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ActionFunction(QObject*);
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virtual ~ActionFunction();
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/*!
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Connects the QAction's triggered() signal with the function \a func
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*/
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void mapSignal(QAction* a, boost::function<void()> func);
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private Q_SLOTS:
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void trigger();
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private:
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QScopedPointer<ActionFunctionPrivate> d_ptr;
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Q_DISABLE_COPY(ActionFunction)
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Q_DECLARE_PRIVATE(ActionFunction)
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};
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} //namespace Gui
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#endif // GUI_ACTIONFUNCTION_H
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