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Diffstat (limited to 'examples/location/places/content/places/MapComponent.qml')
| -rw-r--r-- | examples/location/places/content/places/MapComponent.qml | 237 |
1 files changed, 237 insertions, 0 deletions
diff --git a/examples/location/places/content/places/MapComponent.qml b/examples/location/places/content/places/MapComponent.qml new file mode 100644 index 00000000..00ba9b2e --- /dev/null +++ b/examples/location/places/content/places/MapComponent.qml @@ -0,0 +1,237 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 +import QtPositioning 5.2 +import QtLocation 5.0 +import QtLocation.examples 5.0 + +Map { + id: map + zoomLevel: (maximumZoomLevel - minimumZoomLevel)/2 + center { + // Brisbane + latitude: -27.5 + longitude: 153 + } + + gesture.flickDeceleration: 3000 + gesture.enabled: true + + property bool followme: false + property variant scaleLengths: [5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000, 50000, 100000, 200000, 500000, 1000000, 2000000] + + PositionSource{ + id: positionSource + active: followme + + onPositionChanged: { + map.center = positionSource.position.coordinate + } + } + + Slider { + id: zoomSlider; + minimum: map.minimumZoomLevel; + maximum: map.maximumZoomLevel; + opacity: 1 + visible: parent.visible + z: map.z+1 + anchors { + bottom: parent.bottom; + bottomMargin: 15; rightMargin: 10; leftMargin: 90 + left: parent.left + } + width: parent.width - anchors.rightMargin - anchors.leftMargin + value: map.zoomLevel + onValueChanged: { + map.zoomLevel = value + } + } + + signal coordinatesCaptured(double latitude, double longitude) + + Item {//scale + id: scale + parent: zoomSlider.parent + visible: scaleText.text != "0 m" + z: map.z + opacity: 0.6 + anchors { + bottom: zoomSlider.top; + bottomMargin: 8; + left: zoomSlider.left + } + Image { + id: scaleImageLeft + source: "../../resources/scale_end.png" + anchors.bottom: parent.bottom + anchors.left: parent.left + } + Image { + id: scaleImage + source: "../../resources/scale.png" + anchors.bottom: parent.bottom + anchors.left: scaleImageLeft.right + } + Image { + id: scaleImageRight + source: "../../resources/scale_end.png" + anchors.bottom: parent.bottom + anchors.left: scaleImage.right + } + Text { + id: scaleText + color: "#004EAE" + horizontalAlignment: Text.AlignHCenter + anchors.bottom: parent.bottom + anchors.left: parent.left + anchors.bottomMargin: 3 + text: "0 m" + font.pixelSize: 14 + } + Component.onCompleted: { + map.calculateScale(); + } + } + + Timer { + id: scaleTimer + interval: 100 + running: false + repeat: false + onTriggered: { + map.calculateScale() + } + } + + onCenterChanged:{ + scaleTimer.restart() + if (map.followme) + if (map.center != positionSource.position.coordinate) map.followme = false + } + + onZoomLevelChanged:{ + scaleTimer.restart() + if (map.followme) map.center = positionSource.position.coordinate + } + + onWidthChanged:{ + scaleTimer.restart() + } + + onHeightChanged:{ + scaleTimer.restart() + } + + Keys.onPressed: { + if ((event.key == Qt.Key_Plus) || (event.key == Qt.Key_VolumeUp)) { + map.zoomLevel += 1 + } else if ((event.key == Qt.Key_Minus) || (event.key == Qt.Key_VolumeDown)){ + map.zoomLevel -= 1 + } + } + + function calculateScale(){ + var coord1, coord2, dist, text, f + f = 0 + coord1 = map.toCoordinate(Qt.point(0,scale.y)) + coord2 = map.toCoordinate(Qt.point(0+scaleImage.sourceSize.width,scale.y)) + dist = Math.round(coord1.distanceTo(coord2)) + + if (dist === 0) { + // not visible + } else { + for (var i = 0; i < scaleLengths.length-1; i++) { + if (dist < (scaleLengths[i] + scaleLengths[i+1]) / 2 ) { + f = scaleLengths[i] / dist + dist = scaleLengths[i] + break; + } + } + if (f === 0) { + f = dist / scaleLengths[i] + dist = scaleLengths[i] + } + } + + text = formatDistance(dist) + scaleImage.width = (scaleImage.sourceSize.width * f) - 2 * scaleImageLeft.sourceSize.width + scaleText.text = text + } + + function roundNumber(number, digits) { + var multiple = Math.pow(10, digits); + return Math.round(number * multiple) / multiple; + } + + function formatTime(sec){ + var value = sec + var seconds = value % 60 + value /= 60 + value = (value > 1) ? Math.round(value) : 0 + var minutes = value % 60 + value /= 60 + value = (value > 1) ? Math.round(value) : 0 + var hours = value + if (hours > 0) value = hours + "h:"+ minutes + "m" + else value = minutes + "min" + return value + } + + function formatDistance(meters) + { + var dist = Math.round(meters) + if (dist > 1000 ){ + if (dist > 100000){ + dist = Math.round(dist / 1000) + } + else{ + dist = Math.round(dist / 100) + dist = dist / 10 + } + dist = dist + " km" + } + else{ + dist = dist + " m" + } + return dist + } +} |