/****************************************************************************
**
** 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 "rs_actiondrawlinefree.h"

#include <QAction>
#include "rs_dialogfactory.h"
#include "rs_graphicview.h"



RS_ActionDrawLineFree::RS_ActionDrawLineFree(RS_EntityContainer& container,
        RS_GraphicView& graphicView)
        :RS_PreviewActionInterface("Draw freehand lines",
                    container, graphicView) {
    vertex = RS_Vector(false);
    polyline = NULL;
}

RS_ActionDrawLineFree::~RS_ActionDrawLineFree() {
    if (polyline!=NULL) {
        delete polyline;
    }
}

QAction* RS_ActionDrawLineFree::createGUIAction(RS2::ActionType /*type*/, QObject* /*parent*/) {
        // tr(""Line: Freehand"),
    QAction* action = new QAction(tr("&Freehand Line"), NULL);
        action->setIcon(QIcon(":/extui/linesfree.png"));
    //action->zetStatusTip(tr("Draw freehand lines"));
    return action;
}

void RS_ActionDrawLineFree::trigger() {
    if (polyline!=NULL) {
        deletePreview();

            polyline->endPolyline();
            RS_VectorSolutions sol=polyline->getRefPoints();
            if(sol.getNumber() > 2 ) {
                container->addEntity(polyline);
                if (document) {
                        document->startUndoCycle();
                        document->addUndoable(polyline);
                        document->endUndoCycle();
                }
                graphicView->redraw(RS2::RedrawDrawing);
        RS_DEBUG->print("RS_ActionDrawLineFree::trigger():"
                        " polyline added: %d", polyline->getId());
            } else {
            delete polyline;
            }
        polyline = NULL;
    }
    setStatus(SetStartpoint);
}

/*
 * 11 Aug 2011, Dongxu Li
 */

void RS_ActionDrawLineFree::mouseMoveEvent(QMouseEvent* e) {
    if (getStatus()==Dragging && polyline!=NULL) {
        RS_Vector v = snapPoint(e);
        if( (graphicView->toGui(v) - graphicView->toGui(vertex)).squared()< 1. ){
            //do not add the same mouse position
            return;
        }
        RS_Entity* ent = polyline->addVertex(v);
        if (polyline->count() > 0){
            preview->addCloneOf(ent);
            drawPreview();
        }

        vertex = v;

        RS_DEBUG->print("RS_ActionDrawLineFree::mouseMoveEvent():"
                        " line added: %d", ent->getId());
    }
}



void RS_ActionDrawLineFree::mousePressEvent(QMouseEvent* e) {
    if (e->button()==Qt::LeftButton) {
        switch(getStatus()){
        case SetStartpoint:
            setStatus(Dragging);
        case Dragging:
            vertex = snapPoint(e);
            polyline = new RS_Polyline(container,
                                       RS_PolylineData(vertex, vertex, 0));
            polyline->setLayerToActive();
            polyline->setPenToActive();
            break;
        default:
            break;

        }
    }
    //else if (RS2::qtToRsButtonState(e->button())==RS2::RightButton && !vertex.valid) {
    //}
}



void RS_ActionDrawLineFree::mouseReleaseEvent(QMouseEvent* e) {
    if (e->button()==Qt::LeftButton) {
        if(getStatus()==Dragging){
        vertex = RS_Vector(false);
        trigger();
        }
    } else if (e->button()==Qt::RightButton) {
        if (polyline!=NULL) {
            delete polyline;
            polyline = NULL;
        }
        init(getStatus()-1);
    }
}



void RS_ActionDrawLineFree::updateMouseButtonHints() {
    switch (getStatus()) {
    case SetStartpoint:
    case Dragging:
        RS_DIALOGFACTORY->updateMouseWidget(
            tr("Click and drag to draw a line"), tr("Cancel"));
        break;
    default:
        RS_DIALOGFACTORY->updateMouseWidget("", "");
        break;
    }
}



void RS_ActionDrawLineFree::updateMouseCursor() {
    graphicView->setMouseCursor(RS2::CadCursor);
}



void RS_ActionDrawLineFree::updateToolBar() {
    if (RS_DIALOGFACTORY!=NULL) {
        //reset toolbar button when finished
        if (isFinished()) {
            RS_DIALOGFACTORY->resetToolBar();
        }
    }
}

// EOF