Heart Listener example added

Bluetooth Low Energy example for connecting and receiving measurements from the heart belt.

Documentation added too.

[ChangeLog][QtBluetooth] Heart Listener Bluetooth Low Energy heart belt example has been added

Change-Id: I1b690827af85411c962eb09aa87936f1fb7d9246
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>

1 files changed, 290 insertions, 0 deletions

diff --git a/examples/bluetooth/heartlistener/assets/results.qml b/examples/bluetooth/heartlistener/assets/results.qml
new file mode 100644
index 00000000..78c08873
--- /dev/null
+++ b/examples/bluetooth/heartlistener/assets/results.qml
@@ -0,0 +1,290 @@
+/***************************************************************************
+**
+** Copyright (C) 2014 BlackBerry Limited. All rights reserved.
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the examples of the QtBluetooth module 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 "draw.js" as DrawGraph
+
+Rectangle {
+    id: results
+    color: "#F0EBED"
+
+    Component.onCompleted:  heartRate.obtainResults()
+
+    function getTime() {
+        var t = heartRate.time;
+        var min = Math.floor(t/60);
+        var sec = t%60;
+        var r = min + " min " + sec + " sec "
+        return r;
+    }
+
+    function drawGraph() {
+        var b = plot.height/200;
+        var ctx = canvas1.getContext('2d');
+        ctx.beginPath()
+        ctx.moveTo(10, plot.height- (b*60))
+        var size = heartRate.measurementsSize();
+        var difference = (plot.width-topbar.width)/size;
+
+        for (var i = 0; i< size; i++) {
+            var value = heartRate.measurements(i);
+            if (i == 0) {
+                ctx.moveTo(10+2, (plot.height- (value*b) + 2));
+                ctx.rect((10 + i*difference), (plot.height- (value*b)), 4, 4);
+
+            }
+            else {
+                ctx.lineTo((10+2 + i*difference), (plot.height- (value*b) + 2));
+                ctx.rect((10 + i*difference), (plot.height- (value*b)), 4, 4);
+            }
+
+        }
+        ctx.fillStyle = "#3870BA"
+        ctx.fill()
+        ctx.strokeStyle = "#3870BA"
+        ctx.stroke()
+        ctx.closePath()
+    }
+
+    Rectangle {
+        id: res
+        width: parent.width
+        anchors.top: parent.top
+        height: 80
+        color: "#F0EBED"
+        border.color: "#3870BA"
+        border.width: 2
+        radius: 10
+        Text {
+            id: restText
+            color: "#3870BA"
+            font.pixelSize: 34
+            anchors.centerIn: parent
+            text: "Results"
+        }
+    }
+
+    Text {
+        id: topbar
+        text: "200"
+        anchors.left: parent.left
+        anchors.top: res.bottom
+        anchors.rightMargin: 4
+        color: "#3870BA"
+        z: 50
+    }
+
+    Rectangle {
+        id: level
+        anchors.left: topbar.right
+
+        anchors.top: res.bottom
+        height: ((results.height -(res.height + menuLast.height + start.height ))/2)
+        width: 3
+        color: "#3870BA"
+    }
+
+    Text {
+        id: middlebar
+        anchors.verticalCenter: level.verticalCenter
+        anchors.left: parent.left
+        text: "100"
+        color: "#3870BA"
+        z: 50
+    }
+
+    Rectangle{
+        id: downlevel
+        anchors.bottom: cover.top
+        width: parent.width
+        anchors.left: level.right
+        height: 3
+        color: "#3870BA"
+        z: 50
+    }
+
+    Rectangle {
+        id: plot
+        anchors.left: level.right
+        anchors.leftMargin: 15
+        width: results.width
+        height: ((parent.height-(res.height+menuLast.height+start.height))/2)
+
+        anchors.top: res.bottom
+        color: "#F0EBED"
+        Canvas {
+            id: canvas1
+            anchors.fill: parent
+            z: 150
+            onPaint: drawGraph()
+        }
+    }
+
+    Rectangle {
+        id: cover
+        anchors.top: plot.bottom
+        anchors.bottom: menuLast.top
+        width: parent.width
+        height: ((parent.height-(res.height+menuLast.height+start.height))/2)
+        color: "#F0EBED"
+        radius: 10
+        border.color: "#3870BA"
+        border.width: 2
+
+        Flickable {
+            id: scroll
+            anchors.fill: parent
+            anchors.margins: 5
+            clip: true
+            contentWidth: parent.width
+            contentHeight: stresult.height
+
+            Rectangle {
+                id: stresult
+                width: parent.width
+                height: (results.height - (res.height + menuLast.height + start.height - 100))
+                color: "#F0EBED"
+                radius: 10
+
+                Text {
+                    id: averageHR
+                    font.pixelSize: 30;
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.top: parent.top
+
+                    color: "#3870BA"
+                    text: "Average Heart Rate"
+                }
+
+                Text {
+                    id: averageHRt
+                    font.pixelSize: 40; font.bold: true
+                    anchors.top: averageHR.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: heartRate.average
+                }
+
+                Text {
+                    id: time
+                    font.pixelSize: 30;
+                    anchors.top: averageHRt.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: "Seconds measured "
+                }
+
+                Text {
+                    id: timet
+                    font.pixelSize:  40; font.bold: true
+                    anchors.top: time.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: getTime()
+                }
+                Text {
+                    id: maxi
+                    font.pixelSize:  30;
+                    anchors.top: timet.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: "  Max  ||  Min "
+                }
+
+                Text {
+                    id: mini
+                    font.pixelSize:  40; font.bold: true
+                    anchors.top:maxi.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: " " + heartRate.maxHR + " || " + heartRate.minHR
+                }
+
+                Text {
+                    id: calories
+                    font.pixelSize:  30;
+                    anchors.top: mini.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: "  Calories "
+                }
+
+                Text {
+                    id: caloriestext
+                    font.pixelSize:  40; font.bold: true
+                    anchors.top:calories.bottom
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.topMargin: 20
+                    color: "#3870BA"
+                    text: Math.floor(heartRate.calories)
+                }
+            }
+        }
+    }
+
+    Button {
+        id:menuLast
+        buttonWidth: parent.width
+        buttonHeight: 0.1*parent.height
+        anchors.horizontalCenter: parent.horizontalCenter
+        anchors.bottom: start.top
+        text: "Menu"
+        onButtonClick: { pageLoader.source="main.qml"}
+    }
+
+    Button {
+        id:start
+        buttonWidth: parent.width
+        buttonHeight: 0.1*parent.height
+        anchors.horizontalCenter: parent.horizontalCenter
+        anchors.bottom: parent.bottom
+        text: "Start Monitoring"
+        onButtonClick: {
+            heartRate.connectToService(heartRate.deviceAddress());
+            pageLoader.source="monitor.qml";
+        }
+    }
+}