main.qml Example File

qmloscilloscope/qml/qmloscilloscope/main.qml
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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) } }

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