diff options
Diffstat (limited to 'basicsuite/qt5-everywhere/demos/heartmonitor/main.qml')
| -rw-r--r-- | basicsuite/qt5-everywhere/demos/heartmonitor/main.qml | 266 |
1 files changed, 0 insertions, 266 deletions
diff --git a/basicsuite/qt5-everywhere/demos/heartmonitor/main.qml b/basicsuite/qt5-everywhere/demos/heartmonitor/main.qml deleted file mode 100644 index 7594bdd..0000000 --- a/basicsuite/qt5-everywhere/demos/heartmonitor/main.qml +++ /dev/null @@ -1,266 +0,0 @@ -/****************************************************************************
-**
-** Copyright (C) 2014 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 "HeartData.js" as Data
-
-Rectangle {
- id: app
- anchors.fill: parent
- color: "black"
-
- property int frequency: 60
- property int beatDataIndex: -1
- property int heartDataIndex: 0
- property int beatDifference: 1200
- property var previousTime: 0
- property string curveColor: "#22ff22"
- property string alarmColor: "#ff2222"
- property string textColor: "#22ff22"
- property string gridColor: "#333333"
-
- function pulse() {
- if (!heartAnimation.running) {
- heartAnimation.restart()
- heartTimer.restart()
- calculateFrequency();
- app.beatDataIndex = 0
- }
- }
-
- function calculateFrequency() {
- var ms = new Date().getTime();
- if (app.previousTime > 0)
- app.beatDifference = 0.8*beatDifference + 0.2*(ms - app.previousTime)
- app.frequency = Math.round(60000.0 / app.beatDifference)
- app.previousTime = ms;
- }
-
- function updateData() {
- app.heartDataIndex++;
- if (app.heartDataIndex >= Data.heartData.length)
- app.heartDataIndex = 0;
- else
- app.heartDataIndex++;
-
- if (beatDataIndex >= 0)
- fillBeatData()
- else
- fillRandomData()
-
- heartCanvas.requestPaint()
- }
-
- function fillBeatData() {
- var value = 0;
- switch (app.beatDataIndex) {
- case 0: value = Math.random()*0.1+0.1; break;
- case 1: value = Math.random()*0.1+0.0; break;
- case 2: value = Math.random()*0.3+0.7; break;
- case 3: value = Math.random()*0.1-0.05; break;
- case 4: value = Math.random()*0.3-0.8; break;
- case 5: value = Math.random()*0.1-0.05; break;
- case 6: value = Math.random()*0.1-0.05; break;
- case 7: value = Math.random()*0.1+0.15; break;
- default: value = 0; break;
- }
-
- Data.heartData[app.heartDataIndex] = value;
- app.beatDataIndex++;
- if (app.beatDataIndex > 7)
- app.beatDataIndex = -1
- }
-
- function fillRandomData() {
- Data.heartData[app.heartDataIndex] = Math.random()*0.05-0.025
- }
-
- onWidthChanged: {
- Data.fillHeartData(Math.floor(app.width*0.5))
- gridCanvas.requestPaint();
- }
- onHeightChanged: gridCanvas.requestPaint()
-
- Item {
- id: grid
- anchors.fill: parent
-
- Canvas {
- id: gridCanvas
- anchors.fill: parent
- antialiasing: true
- renderTarget: Canvas.Image
- onPaint: {
- var ctx = gridCanvas.getContext('2d')
-
- ctx.clearRect(0,0,grid.width,grid.height)
- var step = 1000 / updateTimer.interval * (app.width / Data.heartData.length)
- var xCount = app.width / step
- var yCount = app.height / step
- ctx.strokeStyle = app.gridColor;
-
- var x=0;
- ctx.beginPath()
- for (var i=0; i<xCount; i++) {
- x = i*step
- ctx.moveTo(x,0)
- ctx.lineTo(x,app.height)
- }
- ctx.stroke()
- ctx.closePath()
-
- var y=0;
- ctx.beginPath()
- for (var j=0; j<yCount; j++) {
- y = j*step
- ctx.moveTo(0, y)
- ctx.lineTo(app.width,y)
- }
- ctx.stroke()
- ctx.closePath()
- }
- }
- }
-
- Rectangle {
- id: canvasBackground
- anchors { bottom: parent.bottom; left: parent.left; right: parent.right }
- height: 0.75 * parent.height
-
- gradient: Gradient {
- GradientStop {position: .0; color :"black"}
- GradientStop {position: .5; color :"#00ff00"}
- GradientStop {position: 1.0; color :"black"}
- }
- opacity: .3
- }
-
- Item {
- id: canvasContainer
- anchors.fill: canvasBackground
-
- Canvas {
- id: heartCanvas
- anchors.fill: parent
- antialiasing: true
- renderTarget: Canvas.Image
- onPaint: {
- var ctx = heartCanvas.getContext('2d')
-
- ctx.clearRect(0,0,canvasContainer.width,canvasContainer.height)
-
- var baseY = heartCanvas.height/2;
- var length = Data.heartData.length;
- var step = (heartCanvas.width-5) / length;
- var yFactor = heartCanvas.height * 0.35;
- var heartIndex = (heartDataIndex+1) % length;
- ctx.strokeStyle = app.curveColor;
-
- ctx.beginPath()
- ctx.moveTo(0,baseY)
- var i=0, x=0, y=0;
- for (i=0; i<length; i++) {
- x=i*step;
- y=baseY - Data.heartData[heartIndex]*yFactor;
- ctx.lineTo(x,y)
- heartIndex = (heartIndex+1)%length;
- }
- ctx.stroke()
- ctx.closePath()
-
- ctx.beginPath()
- ctx.fillStyle = app.curveColor
- ctx.ellipse(x-5,y-5,10,10)
- ctx.fill()
- ctx.closePath()
- }
- }
- }
- Image {
- id: heart
- anchors { left: parent.left; top: parent.top }
- anchors.margins: app.width * 0.05
- height: parent.height * 0.2
- width: height*1.2
- source: "heart.png"
- MouseArea {
- anchors.fill: parent
- onPressed: pulse()
- }
- }
-
- Text {
- id: pulseText
- anchors { right: parent.right; verticalCenter: heart.verticalCenter }
- anchors.margins: app.width * 0.05
- antialiasing: true
- text: app.frequency
- color: app.frequency > 100 ? app.alarmColor : app.textColor
- font { pixelSize: app.width * .1; bold: true }
- }
-
- // Pulse timer
- Timer {
- id: heartTimer
- interval: 1200
- running: true
- repeat: false
- onTriggered: pulse()
- }
-
- // Update timer
- Timer {
- id: updateTimer
- interval: 30
- running: true
- repeat: true
- onTriggered: updateData()
- }
-
- SequentialAnimation{
- id: heartAnimation
- NumberAnimation { target: heart; property: "scale"; duration: 100; from: 1.0; to:1.2; easing.type: Easing.Linear }
- NumberAnimation { target: heart; property: "scale"; duration: 100; from: 1.2; to:1.0; easing.type: Easing.Linear }
- }
-
- Component.onCompleted: {
- Data.fillHeartData(Math.max(100,Math.floor(app.width*0.5)))
- }
-}
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