/*****************************************************************************
 *
 * ElementBox.js - This class realizes the object labels
 *
 * Copyright (c) 2004-2016 NagVis Project (Contact: info@nagvis.org)
 *
 * License:
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *****************************************************************************/

const ElementBox = Element.extend({
    render: function () {
        let scale = 1;
        if (g_map && usesSource("worldmap") && this.obj.conf.scale_to_zoom == "1") {
            const currentZoom = g_map.getZoom();
            const one2oneZoom = Number(this.obj.conf.normal_size_at_zoom) || 19;
            if (currentZoom < one2oneZoom) {
                scale = 1 / Math.pow(2, one2oneZoom - currentZoom);
            }
            if (currentZoom > one2oneZoom) {
                scale = Math.pow(2, currentZoom - one2oneZoom);
            }
        }

        this.dom_obj = renderNagVisTextbox(
            this.obj.conf.object_id + "-label",
            this.obj.conf.background_color,
            this.obj.conf.border_color,
            0,
            0, // coords are set by this.place()
            this.obj.conf.z,
            this.obj.conf.w,
            this.obj.conf.h,
            this.obj.getText(),
            this.obj.conf.style,
            scale
        );
        this.obj.trigger_obj = this.dom_obj;
        this.place();
    },

    unlock: function () {
        makeResizeable(this.dom_obj);
        makeDragable(this.dom_obj, this.obj, this.obj.saveObject, this.obj.moveObject);
    },

    lock: function () {
        // when locking the object while the cursor is a resize cursor,
        // it will stay as it is, when not removing them.
        this.dom_obj.style.cursor = "";
        makeUndragable(this.dom_obj);
        makeUnresizeable(this.dom_obj);
    },

    place: function () {
        this.dom_obj.style.top = this.obj.parseCoord(this.obj.conf.y, "y") + "px";
        this.dom_obj.style.left = this.obj.parseCoord(this.obj.conf.x, "x") + "px";
    }
});
