/****************************************************************************
**
** This file is part of the LibreCAD project, a 2D CAD program
**
** 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 <QMouseEvent>
#include "rs_actionmodifyround.h"
#include "rs_dialogfactory.h"
#include "rs_graphicview.h"
#include "rs_commandevent.h"
#include "rs_information.h"
#include "rs_math.h"
#include "rs_modification.h"
#include "rs_preview.h"
#include "rs_debug.h"

namespace{
auto eType={ RS2::EntityLine , RS2::EntityPolyline , RS2::EntityArc ,
                                           RS2::EntityCircle , RS2::EntityEllipse , RS2::EntitySpline};
}

struct RS_ActionModifyRound::Points {
	RS_Vector coord1;
	RS_Vector coord2;
	RS_RoundData data;
};

RS_ActionModifyRound::RS_ActionModifyRound(RS_EntityContainer& container,
        RS_GraphicView& graphicView)
        :RS_PreviewActionInterface("Round Entities",
						   container, graphicView)
		,entity1(nullptr)
		,entity2(nullptr)
		, pPoints(std::make_unique<Points>())
		,lastStatus(SetEntity1)
{
	actionType=RS2::ActionModifyRound;
}

RS_ActionModifyRound::~RS_ActionModifyRound() = default;

void RS_ActionModifyRound::init(int status) {
    RS_ActionInterface::init(status);

    snapMode.clear();
    snapMode.restriction = RS2::RestrictNothing;
}



void RS_ActionModifyRound::trigger() {

    RS_DEBUG->print("RS_ActionModifyRound::trigger()");

    if (entity1 && entity1->isAtomic() &&
            entity2 && entity2->isAtomic()) {

        deletePreview();

        RS_Modification m(*container, graphicView);
		m.round(pPoints->coord2,
				pPoints->coord1,
                (RS_AtomicEntity*)entity1,
				pPoints->coord2,
                (RS_AtomicEntity*)entity2,
				pPoints->data);

        //coord = RS_Vector(false);
		pPoints->coord1 = RS_Vector(false);
		entity1 = nullptr;
		pPoints->coord2 = RS_Vector(false);
		entity2 = nullptr;
        setStatus(SetEntity1);

		RS_DIALOGFACTORY->updateSelectionWidget(
					container->countSelected(),
					container->totalSelectedLength());
    }
}



void RS_ActionModifyRound::mouseMoveEvent(QMouseEvent* e) {
    RS_DEBUG->print("RS_ActionModifyRound::mouseMoveEvent begin");

    RS_Vector mouse = graphicView->toGraph(e->x(), e->y());
    RS_Entity* se = catchEntity(e, eType, RS2::ResolveAllButTextImage);

    switch (getStatus()) {
    case SetEntity1:
        entity1 = se;
		pPoints->coord1 = mouse;
        break;

    case SetEntity2:
        entity2 = se;
		pPoints->coord2 = mouse;

        if (entity1 && entity2 && entity2->isAtomic() &&
                        RS_Information::isTrimmable(entity1, entity2)) {

            deletePreview();
            //preview->addSelectionFrom(*container);
            //preview->move(targetPoint-referencePoint);
            RS_Entity* tmp1 = entity1->clone();
            RS_Entity* tmp2 = entity2->clone();
			tmp1->reparent(preview.get());
			tmp2->reparent(preview.get());
            preview->addEntity(tmp1);
            preview->addEntity(tmp2);

			bool trim = pPoints->data.trim;
			pPoints->data.trim = false;
			RS_Modification m(*preview, nullptr, false);
			m.round(pPoints->coord2,
					pPoints->coord1,
                    (RS_AtomicEntity*)tmp1,
					pPoints->coord2,
                    (RS_AtomicEntity*)tmp2,
					pPoints->data);
			pPoints->data.trim = trim;

            preview->removeEntity(tmp1);
            preview->removeEntity(tmp2);
            drawPreview();
        }
        break;

    default:
        break;
    }

    RS_DEBUG->print("RS_ActionModifyRound::mouseMoveEvent end");
}



void RS_ActionModifyRound::mouseReleaseEvent(QMouseEvent* e) {
    RS_Vector mouse = graphicView->toGraph(e->x(), e->y());
    RS_Entity* se = catchEntity(e, eType, RS2::ResolveAll);

    if (e->button()==Qt::LeftButton) {
        switch (getStatus()) {
        case SetEntity1:
            entity1 = se;
			pPoints->coord1 = mouse;
            if (entity1 && entity1->isAtomic() &&
                                RS_Information::isTrimmable(entity1)) {
                setStatus(SetEntity2);
            }
            break;

        case SetEntity2:
            entity2 = se;
			pPoints->coord2 = mouse;
            if (entity2 && entity2->isAtomic() &&
                            RS_Information::isTrimmable(entity1, entity2)) {
                //setStatus(ChooseRounding);
                trigger();
            }
            break;

        default:
            break;
        }
    } else if (e->button()==Qt::RightButton) {
        deletePreview();
        init(getStatus()-1);
    }
}



void RS_ActionModifyRound::commandEvent(RS_CommandEvent* e) {
    QString c = e->getCommand().toLower();

    if (checkCommand("help", c)) {
			RS_DIALOGFACTORY->commandMessage(
						msgAvailableCommands() +
						getAvailableCommands().join(", "));
        return;
    }

    switch (getStatus()) {
    case SetEntity1:
    case SetEntity2:
        if (checkCommand("radius", c)) {
            e->accept();
            deletePreview();
            lastStatus = (Status)getStatus();
            setStatus(SetRadius);
        } else if (checkCommand("trim", c)) {
            e->accept();
            deletePreview();
            lastStatus = (Status)getStatus();
            setStatus(SetTrim);
			pPoints->data.trim = !pPoints->data.trim;
			RS_DIALOGFACTORY->requestOptions(this, true, true);
        }
        break;

    case SetRadius: {
            bool ok;
            double r = RS_Math::eval(c, &ok);
            if (ok) {
                e->accept();
				pPoints->data.radius = r;
			} else
                    RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
			RS_DIALOGFACTORY->requestOptions(this, true, true);
            setStatus(lastStatus);
        }
        break;

        /*case SetTrim: {
        if (c==cmdYes.lower() || c==cmdYes2) {
		data->trim = true;
    } else if (c==cmdNo.lower() || c==cmdNo2) {
		data->trim = false;
                } else {
                    RS_DIALOGFACTORY->commandMessage(tr("Please enter 'Yes' "
               "or 'No'"));
                }
                RS_DIALOGFACTORY->requestOptions(this, true, true);
                setStatus(lastStatus);
            }
            break;*/

    default:
        break;
    }
}



QStringList RS_ActionModifyRound::getAvailableCommands() {
    QStringList cmd;
    switch (getStatus()) {
    case SetEntity1:
    case SetEntity2:
        cmd += command("radius");
        cmd += command("trim");
        break;
    default:
        break;
    }
    return cmd;
}


void RS_ActionModifyRound::setRadius(double r) {
	pPoints->data.radius = r;
}

double RS_ActionModifyRound::getRadius() const{
	return pPoints->data.radius;
}

void RS_ActionModifyRound::setTrim(bool t) {
	pPoints->data.trim = t;
}

bool RS_ActionModifyRound::isTrimOn() const{
	return pPoints->data.trim;
}

void RS_ActionModifyRound::showOptions() {
    RS_ActionInterface::showOptions();

	RS_DIALOGFACTORY->requestOptions(this, true);
}



void RS_ActionModifyRound::hideOptions() {
    RS_ActionInterface::hideOptions();

	RS_DIALOGFACTORY->requestOptions(this, false);
}



void RS_ActionModifyRound::updateMouseButtonHints() {
	switch (getStatus()) {
	case SetEntity1:
		RS_DIALOGFACTORY->updateMouseWidget(tr("Specify first entity"),
											tr("Back"));
		break;
	case SetEntity2:
		RS_DIALOGFACTORY->updateMouseWidget(tr("Specify second entity"),
											tr("Back"));
		break;
	case SetRadius:
		RS_DIALOGFACTORY->updateMouseWidget(tr("Enter radius:"),
											tr("Cancel"));
		break;
		/*case SetTrim:
				RS_DIALOGFACTORY->updateMouseWidget(tr("Trim on? (yes/no):"),
													"");
				break;*/
	default:
		RS_DIALOGFACTORY->updateMouseWidget();
		break;
	}
}



void RS_ActionModifyRound::updateMouseCursor() {
    graphicView->setMouseCursor(RS2::SelectCursor);
}

// EOF
