/****************************************************************************
**
** 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_actiondrawlineparallelthrough.h"

#include "rs_dialogfactory.h"
#include "rs_graphicview.h"
#include "rs_creation.h"
#include "rs_commandevent.h"
#include "rs_coordinateevent.h"
#include "rs_preview.h"
#include "rs_debug.h"

RS_ActionDrawLineParallelThrough::RS_ActionDrawLineParallelThrough(
    RS_EntityContainer& container,
    RS_GraphicView& graphicView)
		:RS_PreviewActionInterface("Draw Parallels", container, graphicView)
		,coord(new RS_Vector{})
		,lastStatus(SetEntity)
{
	actionType=RS2::ActionDrawLineParallelThrough;
	m_SnapDistance=1.;
}

RS_ActionDrawLineParallelThrough::~RS_ActionDrawLineParallelThrough() = default;

void RS_ActionDrawLineParallelThrough::finish(bool updateTB){
	if(entity){
		entity->setHighlighted(false);
		graphicView->drawEntity(entity);
		entity=nullptr;
	}
	RS_PreviewActionInterface::finish(updateTB);
}

void RS_ActionDrawLineParallelThrough::trigger() {
    RS_PreviewActionInterface::trigger();

    if (entity) {
        RS_Creation creation(container, graphicView);
		RS_Entity* e = creation.createParallelThrough(*coord,
                       number,
                       entity);

		if (!e) {
            RS_DEBUG->print("RS_ActionDrawLineParallelThrough::trigger:"
                            " No parallels added\n");
        }
    }
}



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


    switch (getStatus()) {
    case SetEntity: {
            entity = catchEntity(e, RS2::ResolveAll);
            /*deletePreview();

			RS_Creation creation(preview, nullptr, false);
			creation.createParallelThrough(*coord,
                                           number,
                                           entity);

            drawPreview();*/
        }
        break;

    case SetPos: {
			*coord = snapPoint(e);
            //RS_Vector(graphicView->toGraphX(e->x()),
            //                  graphicView->toGraphY(e->y()));
            deletePreview();

			RS_Creation creation(preview.get(), nullptr, false);
			creation.createParallelThrough(*coord,
                                           number,
                                           entity);

            drawPreview();
        }
        break;

    default:
        break;
    }

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



void RS_ActionDrawLineParallelThrough::mouseReleaseEvent(QMouseEvent* e) {
    if (e->button()==Qt::LeftButton) {
        switch (getStatus()) {
        case SetEntity:
            entity = catchEntity(e, RS2::ResolveAll);
            if (entity) {
                entity->setHighlighted(true);
                graphicView->drawEntity(entity);
                setStatus(SetPos);
            }
            break;
        case SetPos: {
                RS_CoordinateEvent ce(snapPoint(e));
                coordinateEvent(&ce);
            }
            break;
        default:
            break;
        }
    } else if (e->button()==Qt::RightButton) {
        deletePreview();
        if (entity) {
            entity->setHighlighted(false);
            graphicView->drawEntity(entity);
			entity=nullptr;
        }
        init(getStatus()-1);
    }
}



void RS_ActionDrawLineParallelThrough::coordinateEvent(RS_CoordinateEvent* e) {
	if (!e) {
        return;
    }

    RS_Vector mouse = e->getCoordinate();

    switch (getStatus()) {
    case SetPos:
		*coord = mouse;
        trigger();
        break;

    default:
        break;
    }
}



void RS_ActionDrawLineParallelThrough::updateMouseButtonHints() {
    switch (getStatus()) {
    case SetEntity:
        RS_DIALOGFACTORY->updateMouseWidget(tr("Select entity"), tr("Cancel"));
        break;

    case SetPos:
        RS_DIALOGFACTORY->updateMouseWidget(tr("Specify through point"),
                                            tr("Back"));
        break;

    case SetNumber:
        RS_DIALOGFACTORY->updateMouseWidget(tr("Number:"), tr("Back"));
        break;

    default:
        RS_DIALOGFACTORY->updateMouseWidget();
        break;
    }
}



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

    RS_DIALOGFACTORY->requestOptions(this, true);
    updateMouseButtonHints();
}



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

    RS_DIALOGFACTORY->requestOptions(this, false);
}



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

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

    switch (getStatus()) {
    case SetEntity:
    case SetPos: {
            if (checkCommand("number", c)) {
                deletePreview();
                lastStatus = (Status)getStatus();
                setStatus(SetNumber);
            }
        }
        break;

    case SetNumber: {
            bool ok;
            int n = c.toInt(&ok);
            if (ok) {
                e->accept();
                if (n>0 && n<100) {
                    number = n;
                } else {
                    RS_DIALOGFACTORY->commandMessage(tr("Not a valid number. "
                                                        "Try 1..99"));
                }
            } else {
                RS_DIALOGFACTORY->commandMessage(tr("Not a valid expression"));
            }
            RS_DIALOGFACTORY->requestOptions(this, true, true);
            setStatus(lastStatus);
        }
        break;

    default:
        break;
    }
}



QStringList RS_ActionDrawLineParallelThrough::getAvailableCommands() {
    QStringList cmd;

    switch (getStatus()) {
    case SetEntity:
        cmd += command("number");
        break;
    default:
        break;
    }

    return cmd;
}



void RS_ActionDrawLineParallelThrough::updateMouseCursor()
{
    switch (getStatus())
    {
        case SetEntity:
            graphicView->setMouseCursor(RS2::SelectCursor);
            break;
        case SetNumber:
        case SetPos:
            graphicView->setMouseCursor(RS2::CadCursor);
            break;
    }
}


int RS_ActionDrawLineParallelThrough::getNumber() const{
	return number;
}

void RS_ActionDrawLineParallelThrough::setNumber(int n) {
	number = n;
}

// EOF