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<h1 class="title">main.qml Example File</h1>
<span class="subtitle">qmloscilloscope/qml/qmloscilloscope/main.qml</span>
<!-- $$$qmloscilloscope/qml/qmloscilloscope/main.qml-description -->
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<pre class="qml">
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.1
import QtQuick.Layouts 1.0
import QtQuick.Controls 1.0
import QtDataVisualization 1.1
import "."
Item {
id: mainView
width: 1280
height: 1024
property int sampleColumns: sampleSlider.value
property int sampleRows: sampleColumns / 2
property int sampleCache: 24
onSampleRowsChanged: {
surfaceSeries.selectedPoint = surfaceSeries.invalidSelectionPosition
generateData()
}
Item {
id: dataView
anchors.bottom: parent.bottom
width: parent.width
height: parent.height - buttonLayout.height
Surface3D {
id: surfaceGraph
width: dataView.width
height: dataView.height
shadowQuality: AbstractGraph3D.ShadowQualityNone
selectionMode: AbstractGraph3D.SelectionSlice | AbstractGraph3D.SelectionItemAndRow
renderingMode: AbstractGraph3D.RenderDirectToBackground
axisX.labelFormat: "%d ms"
axisY.labelFormat: "%d W"
axisZ.labelFormat: "%d mV"
axisX.min: 0
axisY.min: 0
axisZ.min: 0
axisX.max: 1000
axisY.max: 100
axisZ.max: 800
axisX.segmentCount: 4
axisY.segmentCount: 4
axisZ.segmentCount: 4
measureFps: true
onCurrentFpsChanged: {
if (fps > 10)
fpsText.text = "FPS: " + Math.round(surfaceGraph.currentFps)
else
fpsText.text = "FPS: " + Math.round(surfaceGraph.currentFps * 10.0) / 10.0
}
Surface3DSeries {
id: surfaceSeries
drawMode: Surface3DSeries.DrawSurface;
flatShadingEnabled: false;
meshSmooth: true
itemLabelFormat: "@xLabel, @zLabel: @yLabel"
itemLabelVisible: false
onItemLabelChanged: {
if (surfaceSeries.selectedPoint === surfaceSeries.invalidSelectionPosition)
selectionText.text = "No selection"
else
selectionText.text = surfaceSeries.itemLabel
}
}
Component.onCompleted: mainView.generateData()
}
}
Timer {
id: refreshTimer
interval: 1000 / frequencySlider.value
running: true
repeat: true
onTriggered: dataSource.update(surfaceSeries)
}
Rectangle {
width: parent.width
height: flatShadingToggle.height * 2
anchors.left: parent.left
anchors.top: parent.top
color: surfaceGraph.theme.backgroundColor
ColumnLayout {
anchors.fill: parent
RowLayout {
id: sliderLayout
anchors.top: parent.top
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumHeight: flatShadingToggle.height
spacing: 0
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: samplesText.implicitWidth + 120
Layout.maximumWidth: samplesText.implicitWidth + 120
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
border.color: "gray"
border.width: 1
radius: 4
RowLayout {
anchors.fill: parent
anchors.margins: parent.border.width + 1
Slider {
id: sampleSlider
Layout.fillHeight: true
Layout.fillWidth: true
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
Layout.minimumWidth: 80
minimumValue: mainView.sampleCache * 2
maximumValue: minimumValue * 10
stepSize: mainView.sampleCache
updateValueWhileDragging: false
Component.onCompleted: value = minimumValue * 2
}
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: samplesText.implicitWidth + 10
Layout.maximumWidth: samplesText.implicitWidth + 10
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
Text {
id: samplesText
text: "Samples: " + (mainView.sampleRows * mainView.sampleColumns)
anchors.fill: parent
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
}
}
}
}
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: frequencyText.implicitWidth + 120
Layout.maximumWidth: frequencyText.implicitWidth + 120
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
border.color: "gray"
border.width: 1
radius: 4
RowLayout {
anchors.fill: parent
anchors.margins: parent.border.width + 1
Slider {
id: frequencySlider
Layout.fillHeight: true
Layout.fillWidth: true
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
Layout.minimumWidth: 80
minimumValue: 2
maximumValue: 60
stepSize: 2
updateValueWhileDragging: true
value: 30
}
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: frequencyText.implicitWidth + 10
Layout.maximumWidth: frequencyText.implicitWidth + 10
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
Text {
id: frequencyText
text: "Freq: " + frequencySlider.value + " Hz"
anchors.fill: parent
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
}
}
}
}
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: fpsText.implicitWidth + 10
Layout.maximumWidth: fpsText.implicitWidth + 10
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
border.color: "gray"
border.width: 1
radius: 4
Text {
id: fpsText
anchors.fill: parent
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
}
}
Rectangle {
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumWidth: selectionText.implicitWidth + 10
Layout.alignment: Qt.AlignHCenter | Qt.AlignVCenter
border.color: "gray"
border.width: 1
radius: 4
Text {
id: selectionText
anchors.fill: parent
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
text: "No selection"
}
}
}
RowLayout {
id: buttonLayout
Layout.fillHeight: true
Layout.fillWidth: true
Layout.minimumHeight: flatShadingToggle.height
anchors.bottom: parent.bottom
spacing: 0
NewButton {
id: flatShadingToggle
Layout.fillHeight: true
Layout.fillWidth: true
text: surfaceSeries.flatShadingSupported ? "Show Flat" : "Flat not supported"
enabled: surfaceSeries.flatShadingSupported
onClicked: {
if (surfaceSeries.flatShadingEnabled === true) {
surfaceSeries.flatShadingEnabled = false;
text = "Show Flat"
} else {
surfaceSeries.flatShadingEnabled = true;
text = "Show Smooth"
}
}
}
NewButton {
id: surfaceGridToggle
Layout.fillHeight: true
Layout.fillWidth: true
text: "Show Surface Grid"
onClicked: {
if (surfaceSeries.drawMode & Surface3DSeries.DrawWireframe) {
surfaceSeries.drawMode &= ~Surface3DSeries.DrawWireframe;
text = "Show Surface Grid"
} else {
surfaceSeries.drawMode |= Surface3DSeries.DrawWireframe;
text = "Hide Surface Grid"
}
}
}
NewButton {
id: exitButton
Layout.fillHeight: true
Layout.fillWidth: true
text: "Quit"
onClicked: Qt.quit(0);
}
}
}
}
function generateData() {
dataSource.generateData(mainView.sampleCache, mainView.sampleRows,
mainView.sampleColumns, surfaceGraph.axisX.min,
surfaceGraph.axisX.max, surfaceGraph.axisY.min,
surfaceGraph.axisY.max, surfaceGraph.axisZ.min,
surfaceGraph.axisZ.max)
}
}
</pre>
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<!-- @@@qmloscilloscope/qml/qmloscilloscope/main.qml -->
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distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
845e36bb3ecce380666d628d88446962
>
files
>
307
