/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Mobility Components.
**
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**     notice, this list of conditions and the following disclaimer.
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**     the documentation and/or other materials provided with the
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**     products derived from this software without specific prior written
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import Qt 4.7
import QtMobility.location 1.2

Item {
    id: page
    width: 320
    height: 480
    focus: true

    PositionSource {
        id: myPositionSource
        active: true
        updateInterval: 2000
        nmeaSource: 'nmealog.txt'
        onPositionChanged: console.log("Position changed in PositionSource")
    }
    LandmarkBoxFilter {
        id: boxFilter
        topLeft: map.toCoordinate(Qt.point(0,0))
        bottomRight: map.toCoordinate(Qt.point(page.width, page.height))
    }

     LandmarkProximityFilter {
         id: proximityFilter
         center: myPositionSource.position.coordinate
	 //center: Coordinate {latitude: -27; longitude: 153}
         radius: 500000
     }

    LandmarkModel {
        id: landmarkModelAll
        autoUpdate: true
        filter: boxFilter
        limit: 50
        onModelChanged: {
            console.log("All landmark model changed, landmark count: " + count)
        }
    }

    //! [LandmarkModel proximity filter]
    LandmarkModel {
        id: landmarkModelNear
        autoUpdate: true
        filter: proximityFilter
        limit: 50
        onModelChanged: {
            console.log("Near landmark model changed, landmark count: " + count)
        }
    }
    //! [LandmarkModel proximity filter]

    Rectangle {
        id: dataArea
        anchors.fill: parent
        color: "#343434"

        //![Basic MapObjects and View on Map]
        Map {
            id: map
            plugin : Plugin {name : "nokia"}
            anchors.fill: parent
            size.width: parent.width
            size.height: parent.height
            zoomLevel: 10

            MapObjectView {
	        id: allLandmarks
		model: landmarkModelAll
		delegate: Component {
		    MapCircle {
			color: "green"
			radius: 1000
		        center: Coordinate {
	                    latitude: landmark.coordinate.latitude
		            longitude: landmark.coordinate.longitude
	                }
	            }
	        }
	    }

	    MapCircle {
		id: myPosition
		color: "yellow"
		radius: 1000
		center: myPositionSource.position.coordinate
	    }
        //![Basic MapObjects and View on Map]

	    MapObjectView {
	        id: landmarksNearMe
		model: landmarkModelNear
		delegate: Component {
		    MapGroup {
		        MapCircle {
	                    color: "red"
	                    radius: 1000
		            center: Coordinate {
	                        latitude: landmark.coordinate.latitude
		                longitude: landmark.coordinate.longitude
	                    }
	                }
	            }
		}
	    }

            // center: Coordinate {latitude: -27; longitude: 153}
	    center: myPositionSource.position.coordinate

            onZoomLevelChanged: {
                console.log("Zoom changed")
                updateFilters();
            }
            onCenterChanged: {
                console.log("Center changed")
                updateFilters();
            }
            function updateFilters () {
                // The pixel coordinates used are the map's pixel coordinates, not
                // the absolute pixel coordinates of the application. Hence e.g. (0,0) is always
                // the top left point
                var topLeftCoordinate = map.toCoordinate(Qt.point(0,0))
                var bottomRightCoordinate = map.toCoordinate(Qt.point(map.size.width, map.size.height))
                boxFilter.topLeft = topLeftCoordinate;
                boxFilter.bottomRight = bottomRightCoordinate;
            }
        } // map
    } // dataArea
} // page
