/** *************************************************************************
                          fovitem.h  -  K Desktop Planetarium
                             -------------------
    begin                : 20/08/2016
    copyright            : (C) 2016 by Artem Fedoskin
    email                : afedoskin3@gmail.com
 ***************************************************************************/
/** *************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "fovitem.h"
#include "labelsitem.h"
#include "skynodes/fovsymbolnode.h"
#include "Options.h"

FOVItem::FOVItem(RootNode * rootNode)
    :SkyItem(LabelsItem::label_t::NO_LABEL, rootNode)
{
    addSymbol(i18nc("use field-of-view for binoculars", "7x35 Binoculars" ),
                    558,  558, 0,0,0, CIRCLE,"#AAAAAA");
    addSymbol(i18nc("use a Telrad field-of-view indicator", "Telrad" ),
                    30,   30, 0,0,0,   BULLSEYE,"#AA0000");
    addSymbol(i18nc("use 1-degree field-of-view indicator", "One Degree"),
                    60,   60, 0,0,0,  CIRCLE,"#AAAAAA");
    addSymbol(i18nc("use HST field-of-view indicator", "HST WFPC2"),
                    2.4,  2.4, 0,0,0, SQUARE,"#AAAAAA");
    addSymbol(i18nc("use Radiotelescope HPBW", "30m at 1.3cm" ),
                    1.79, 1.79, 0,0,0, SQUARE,"#AAAAAA");
}

void FOVItem::addSymbol(const QString &name, float a, float b, float xoffset, float yoffset,
                        float rot, FOVItem::Shape shape, const QString &color)
{
    SkyMapLite::Instance()->addFOVSymbol(name, false);
    appendChildNode(new FOVSymbolNode(name, a, b, xoffset, yoffset, rot, shape,color));
}

void FOVItem::update() {
    float zoomFactor = Options::zoomFactor();
    SkyMapLite *map = SkyMapLite::Instance();

    QSGNode *n = firstChild();
    int index = 0;
    while(n != 0) {
        FOVSymbolNode *fov = static_cast<FOVSymbolNode *>(n);
        if(map->isFOVVisible(index)) {
            fov->update(zoomFactor);
        } else {
            fov->hide();
        }
        n = n->nextSibling();
        index++;
    }
}

