/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** Copyright (C) 2015 Dongxu Li (dongxuli2011 at gmail.com)
** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
**
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file gpl-2.0.txt included in the
** packaging of this file.
**
** This program 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 this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
**
** This copyright notice MUST APPEAR in all copies of the script!
**
**********************************************************************/
#include<QAction>
#include<QToolButton>
#include<QLayout>
#include<QMouseEvent>
#include "qg_cadtoolbarselect.h"
#include "qg_cadtoolbar.h"
#include "rs_actionselect.h"
#include "qg_actionhandler.h"
#include "rs_debug.h"

/*
 *  Constructs a QG_CadToolBarSelect as a child of 'parent', with the
 *  name 'name' and widget flags set to 'f'.
 */
QG_CadToolBarSelect::QG_CadToolBarSelect(QG_CadToolBar* parent, Qt::WindowFlags fl)
	:LC_CadToolBarInterface(parent, fl)
	,nextAction(-1)
	,selectAction(nullptr)
{
	initToolBars();
	if(layout()){
		QToolButton* button=new QToolButton;
		button->setDefaultAction(m_pButtonForward);
        button->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
		layout()->addWidget(button);
        static_cast<QVBoxLayout*>(layout())->addStretch(1);
	}
	connect(m_pButtonForward, SIGNAL(triggered()), this, SLOT(runNextAction()));
}

void QG_CadToolBarSelect::setSelectAction(RS_ActionInterface* selectAction) {
    this->selectAction = selectAction;
}

void QG_CadToolBarSelect::setNextAction(int nextAction) {
    this->nextAction = nextAction;
    if (nextAction==-1) {
//		DEBUG_HEADER
		m_pButtonForward->setVisible(false);
    } else {
//		DEBUG_HEADER
		m_pButtonForward->setVisible(true);
    }
}

void QG_CadToolBarSelect::runNextAction() {
	if (selectAction) {
        if(selectAction->rtti() == RS2::ActionSelect){
            //refuse to run next action if no entity is selected, to avoid segfault by action upon empty selection
            //issue#235
            if( static_cast<RS_ActionSelect*>(selectAction)->countSelected()==0) return;
        }
        selectAction->finish();
		selectAction = nullptr;
    }
    if (nextAction!=-1) {
        actionHandler->killSelectActions();
        actionHandler->setCurrentAction((RS2::ActionType)nextAction);
    }
}

void QG_CadToolBarSelect::mousePressEvent(QMouseEvent* e) {
	if (e->button()==Qt::RightButton && cadToolBar) {
		on_bBack_clicked();
		e->accept();
	}
}

void QG_CadToolBarSelect::on_bBack_clicked()
{
	killSelectActions();
	if(cadToolBar){
		cadToolBar->showPreviousToolBar(true);
		cadToolBar->resetToolBar();
	}
}