/****************************************************************************
**
** 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_actionprintpreview.h"

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

/**
 * Constructor.
 */
RS_ActionPrintPreview::RS_ActionPrintPreview(RS_EntityContainer& container,
                                             RS_GraphicView& graphicView)
    :RS_ActionInterface("Print Preview",
                        container, graphicView), hasOptions(false){
    showOptions();
}



RS_ActionPrintPreview::~RS_ActionPrintPreview() {
}


QAction* RS_ActionPrintPreview::createGUIAction(RS2::ActionType /*type*/, QObject* /*parent*/) {
    // tr("Print Preview")
    QAction* action = new QAction(tr("Print Pre&view"), NULL);
#if QT_VERSION >= 0x040600
    action->setIcon(QIcon::fromTheme("document-print-preview", QIcon(":/actions/fileprintpreview.png")));
#else
    action->setIcon(QIcon(":/actions/fileprintpreview.png"));
#endif
    //action->zetStatusTip(tr("Shows a preview of a print"));
    return action;
}


void RS_ActionPrintPreview::init(int status) {
    RS_ActionInterface::init(status);
    showOptions();
}




void RS_ActionPrintPreview::trigger() {}



void RS_ActionPrintPreview::mouseMoveEvent(QMouseEvent* e) {
    switch (getStatus()) {
    case Moving:
        v2 = graphicView->toGraph(e->x(), e->y());
        if (graphic!=NULL) {
            RS_Vector pinsbase = graphic->getPaperInsertionBase();

            double scale = graphic->getPaperScale();

            graphic->setPaperInsertionBase(pinsbase-v2*scale+v1*scale);
        }
        v1 = v2;
        graphicView->redraw(RS2::RedrawGrid); // DRAW Grid also draws paper, background items
        break;

    default:
        break;
    }
}



void RS_ActionPrintPreview::mousePressEvent(QMouseEvent* e) {
    if (e->button()==Qt::LeftButton) {
        switch (getStatus()) {
        case Neutral:
            v1 = graphicView->toGraph(e->x(), e->y());
            setStatus(Moving);
            break;

        default:
            break;
        }
    }
}


void RS_ActionPrintPreview::mouseReleaseEvent(QMouseEvent* e) {
    switch (getStatus()) {
    case Moving:
        setStatus(Neutral);
        break;

    default:
        RS_DIALOGFACTORY->requestPreviousMenu();
        e->accept();
        break;
    }
}



void RS_ActionPrintPreview::coordinateEvent(RS_CoordinateEvent* ) {}



void RS_ActionPrintPreview::commandEvent(RS_CommandEvent* ) {}



QStringList RS_ActionPrintPreview::getAvailableCommands() {
    QStringList cmd;
    return cmd;
}

void RS_ActionPrintPreview::resume() {
    RS_ActionInterface::resume();
    showOptions();
}

//printout warning in command widget
void RS_ActionPrintPreview::printWarning(const QString& s) {
    if(RS_DIALOGFACTORY != NULL ){
        RS_DIALOGFACTORY->commandMessage(s);
    }
}
void RS_ActionPrintPreview::showOptions() {
    RS_ActionInterface::showOptions();
    if(RS_DIALOGFACTORY != NULL && ! isFinished() ) {
        RS_DIALOGFACTORY->requestOptions(this, true,hasOptions);
        hasOptions=true;
    }
}



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

    RS_DIALOGFACTORY->requestOptions(this, false);
}


void RS_ActionPrintPreview::updateMouseButtonHints() {}



void RS_ActionPrintPreview::updateMouseCursor() {
    switch (getStatus()){
    case Moving:
        graphicView->setMouseCursor(RS2::ClosedHandCursor);
        break;
    default:
        graphicView->setMouseCursor(RS2::OpenHandCursor);
    }
}



void RS_ActionPrintPreview::updateToolBar() {}


void RS_ActionPrintPreview::center() {
    if (graphic!=NULL) {
        graphic->centerToPage();
        graphicView->redraw();
    }
}


void RS_ActionPrintPreview::fit() {
    if (graphic!=NULL) {
        double f0=graphic->getPaperScale();
        graphic->fitToPage();
        if(fabs(f0-graphic->getPaperScale())>RS_TOLERANCE){
            //only zoomPage when scale changed
            graphicView->zoomPage();
        }
        graphicView->redraw();
    }
}

bool RS_ActionPrintPreview::setScale(double f) {
    bool ret=false;
    if (graphic!=NULL) {
        double oldFactor= graphic->getPaperScale();
        if( fabs(f -oldFactor) < RS_TOLERANCE ) return false;
        graphic->setPaperScale(f);
        graphicView->zoomPage();
        RS_Vector vp= graphicView->toGui(graphic->getPaperSize()/graphic->getPaperScale());
        if(std::max(fabs(vp.x),fabs(vp.y))>1e6){
            //scale too large, bug#3450333
            graphic->setPaperScale(oldFactor);
            graphicView->zoomPage();
            if(RS_DIALOGFACTORY != NULL ){
                RS_DIALOGFACTORY->commandMessage(tr("Scale ratio too large. Keep the old scale"));
            }
        }else{
            ret=true;
        }
        graphic->centerToPage();
        //        std::cout<<"RS_ActionPrintPreview::setScale("<<f<<"): papersize in Gui="<<vp<<std::endl;

        graphicView->redraw();
    }
    return ret;
}



double RS_ActionPrintPreview::getScale() {
    double ret = 1.0;
    if (graphic!=NULL) {
        ret = graphic->getPaperScale();
    }
    return ret;
}



void RS_ActionPrintPreview::setBlackWhite(bool bw) {
    if (bw) {
        graphicView->setDrawingMode(RS2::ModeBW);
    }
    else {
        graphicView->setDrawingMode(RS2::ModeFull);
    }
    graphicView->redraw();
}


RS2::Unit RS_ActionPrintPreview::getUnit() {
    if (graphic!=NULL) {
        return graphic->getUnit();
    }
    else {
        return RS2::None;
    }
}


// EOF