/*----------------    FILE HEADER ---------------------------------------
 This file is part of Geoide.
 Copyright (C) 2005-2006 by:
 IDgis B.V.
 http://www.idgis.nl

 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.

 This library 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
 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

 Contact:

 Herman Assink
 IDgis bv
 P.O. Box 15
 7450 AA Holten
 The Netherlands
 E-Mail: herman.assink@idgis.nl

 * @version 1.4.0
 * @author IDgis team
 * 
 ------------------------------------------------------------------------*/
import nl.idgis.giclient.geoma.Envelope;
import nl.idgis.giclient.geoma.Point;
import nl.idgis.giclient.gis.CentreScale;
import nl.idgis.giclient.gui.mapviewer.MapViewer;
import nl.idgis.giclient.modes.MapViewerAction;

class nl.idgis.giclient.modes.MapViewerZoomIn implements MapViewerAction {

    function enter(mapViewer:MapViewer):Void {
    }

    function exit(mapViewer:MapViewer):Void {
    }

    function performPress(mapViewer:MapViewer,pressX:Number,pressY:Number, worldPoint:Point):Void {
        mapViewer.zoomDragging = true;
        mapViewer["mapCustomCursor"].setDragging(true);
    }

    function performRelease(mapViewer:MapViewer):Void {
    }

    function performMouseUp(mapViewer:MapViewer):Void {
        var rectX2:Number = mapViewer._xmouse;
        var rectY2:Number = mapViewer._ymouse;

        if (mapViewer.zoomDragging) {
            mapViewer.zoomDragging = false;

            if ((Math.abs(mapViewer.rectX - rectX2) <= mapViewer.clickTolerance) && (Math.abs(mapViewer.rectY - rectY2) <= mapViewer.clickTolerance)) {
                var coordX:Number = mapViewer.ruler.getGIS().getCurrentCentreScale().getCoordX(mapViewer.mapWidth, rectX2, mapViewer.ruler.getGIS().getCoordPixFactor());
                var coordY:Number = mapViewer.ruler.getGIS().getCurrentCentreScale().getCoordY(mapViewer.mapHeight, rectY2, mapViewer.ruler.getGIS().getCoordPixFactor());
                mapViewer.ruler.getGIS().zoomIn(coordX, coordY);
            } else {
                var currentCentreScale:CentreScale = mapViewer.ruler.getGIS().getCurrentCentreScale();
                var envelope:Envelope = currentCentreScale.toEnvelopeWithBox(mapViewer.mapWidth, mapViewer.mapHeight,
                mapViewer.rectX, mapViewer.rectY, rectX2, rectY2, mapViewer.ruler.getGIS().getCoordPixFactor());
                var newCentreScale:CentreScale = envelope.toCentreScale(Stage.width, Stage.height - 100, mapViewer.ruler.getGIS().getCoordPixFactor());
                mapViewer.ruler.getGIS().setCurrentCentreScale(newCentreScale.getCentreX(), newCentreScale.getCentreY(), newCentreScale.getScale());
            }
        }
    }

    function performMouseMove(mapViewer:MapViewer):Void {
    }

    function performDrag(mapViewer:MapViewer):Void {
        mapViewer["dragBox"].clear();
        mapViewer["dragBox"].lineStyle(1, 0x000000, 100);
        mapViewer["dragBox"].moveTo(mapViewer.rectX, mapViewer.rectY);
        mapViewer["dragBox"].lineTo(mapViewer._xmouse, mapViewer.rectY);
        mapViewer["dragBox"].lineTo(mapViewer._xmouse, mapViewer._ymouse);
        mapViewer["dragBox"].lineTo(mapViewer.rectX, mapViewer._ymouse);
        mapViewer["dragBox"].lineTo(mapViewer.rectX, mapViewer.rectY);
    }

    function onKeyPress(mapViewer:MapViewer):Void {
    }
}