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machinekodermachinekoder
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‎FileSelectionDialog.qml

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import QtQuick 2.0
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import QtQuick.Controls 2.0
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import QtQuick.Layouts 1.3
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import Qt.labs.settings 1.0
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Item {
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property bool selected: false
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property string folder: ""
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property string file: ""
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property bool autoSelect: true
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property var model: []
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id: root
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QtObject {
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id: d
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readonly property var filteredModel: filterModel(root.model)
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function filterModel(model) {
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var newModel = []
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for (var key in model) {
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var item = model[key]
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if (item.toLowerCase().indexOf(filterInput.text.toLowerCase()) !== -1) {
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newModel.push(item)
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}
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}
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return newModel
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}
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function select(file) {
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root.file = "file://" + file
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// @disable-check M110
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root.folder = "file://" + new String(file).substring(
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0, file.lastIndexOf('/'))
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root.selected = true
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}
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}
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Settings {
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property alias filterText: filterInput.text
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}
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ColumnLayout {
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anchors.fill: parent
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TextField {
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id: filterInput
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Layout.fillWidth: true
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placeholderText: "filter"
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onFocusChanged: {
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if (focus) {
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selectAll()
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}
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}
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}
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ListView {
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id: listView
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Layout.fillWidth: true
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Layout.fillHeight: true
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clip: true
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model: d.filteredModel
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delegate: Button {
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readonly property string data_: d.filteredModel[index]
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text: data_
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onClicked: d.select(text)
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height: visible ? 30 : 0
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}
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onCountChanged: {
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if (root.autoSelect && (count == 1) && !root.selected) {
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selectTimer.start()
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}
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}
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}
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}
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Timer {
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id: selectTimer
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interval: 10
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onTriggered: d.select(d.filteredModel[0])
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}
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}

‎LiveWindow.qml

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import QtQuick 2.9
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import QtQuick.Controls 2.2
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import QtQuick.Layouts 1.3
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import QtQuick.Window 2.0
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import Qt.labs.settings 1.0
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import com.machinekoder.live 1.0
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Item {
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id: root
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property alias hideToolBar: hideToolBarCheck.checked
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property int flags: Qt.Window
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property int visibility: Window.AutomaticVisibility
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QtObject {
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id: d
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function reload() {
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loader.source = ""
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ApplicationHelpers.clearQmlComponentCache()
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loader.source = fileDialog.file
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}
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function openWithSystemEditor() {
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ApplicationHelpers.openUrlWithDefaultApplication(fileDialog.file)
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}
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function unload() {
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loader.source = ""
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fileDialog.selected = false
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browser.update()
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}
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function restart() {
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ApplicationHelpers.restartApplication()
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}
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}
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MouseArea {
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id: smallArea
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anchors.top: parent.top
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anchors.left: parent.left
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anchors.right: parent.right
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height: 10
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width: height
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z: 10
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visible: contentItem.loaded && !fullArea.delayedVisible
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hoverEnabled: true
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propagateComposedEvents: true
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onClicked: mouse.accepted = false
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onEntered: fullArea.visible = true
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}
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MouseArea {
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property bool delayedVisible: false
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id: fullArea
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anchors.top: parent.top
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anchors.right: parent.right
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anchors.left: parent.left
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height: 40
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z: 9
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hoverEnabled: true
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propagateComposedEvents: true
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visible: false
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onClicked: mouse.accepted = false
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onPressed: mouse.accepted = false
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onReleased: mouse.accepted = false
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onExited: visible = false
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onVisibleChanged: delayTimer.start()
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Timer {
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id: delayTimer
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interval: 10
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onTriggered: fullArea.delayedVisible = fullArea.visible // break binding loop
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}
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}
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ColumnLayout {
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anchors.fill: parent
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anchors.topMargin: menuBar.visible ? 5 : 0
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RowLayout {
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id: menuBar
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visible: !hideToolBarCheck.checked || (smallArea.containsMouse
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|| fullArea.containsMouse
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|| !contentItem.loaded)
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Button {
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Layout.preferredHeight: 30
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enabled: fileDialog.selected
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text: qsTr("Edit")
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onClicked: d.openWithSystemEditor()
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}
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Button {
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Layout.preferredHeight: 30
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enabled: fileDialog.selected
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text: qsTr("Unload")
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onClicked: d.unload()
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}
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Button {
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Layout.preferredHeight: 30
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text: qsTr("Reload")
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onClicked: d.reload()
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}
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Button {
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Layout.preferredHeight: 30
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text: qsTr("Restart")
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onClicked: d.restart()
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}
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Item {
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Layout.fillWidth: true
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}
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CheckBox {
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id: hideToolBarCheck
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text: qsTr("Hide Tool Bar")
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checked: false
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}
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CheckBox {
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text: qsTr("Fullscreen")
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checked: root.visibility === Window.FullScreen
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onClicked: {
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if (checked) {
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root.visibility = Window.FullScreen
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} else {
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root.visibility = Window.AutomaticVisibility
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}
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}
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Component.onCompleted: checked = root.visibility === Window.FullScreen
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}
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CheckBox {
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text: qsTr("On Top")
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checked: root.flags & Qt.WindowStaysOnTopHint
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onClicked: {
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if (checked) {
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root.flags = root.flags | Qt.WindowStaysOnTopHint
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} else {
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root.flags = root.flags & ~Qt.WindowStaysOnTopHint
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}
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}
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Component.onCompleted: checked = root.flags & Qt.WindowStaysOnTopHint
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}
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}
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Item {
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id: contentItem
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Layout.fillWidth: true
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Layout.fillHeight: true
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property bool loaded: loader.status !== Loader.Null
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Loader {
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id: loader
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anchors.fill: parent
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onStatusChanged: {
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if (status !== Loader.Error) {
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return
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}
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var msg = loader.sourceComponent.errorString()
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errorLabel.text = qsTr("QML Error: Loading QML file failed:\n") + msg
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}
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}
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Label {
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id: errorLabel
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anchors.left: parent.left
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anchors.right: parent.right
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anchors.verticalCenter: parent.verticalCenter
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horizontalAlignment: Text.AlignHCenter
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wrapMode: Text.Wrap
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visible: loader.status === Loader.Error
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}
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FileSelectionDialog {
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id: fileDialog
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anchors.fill: parent
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model: browser.qmlFiles
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visible: !contentItem.loaded
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onSelectedChanged: {
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if (selected) {
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d.reload()
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}
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}
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}
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}
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}
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ProjectBrowser {
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id: browser
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}
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FileWatcher {
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id: fileWatcher
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fileUrl: browser.projectPath
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recursive: true
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enabled: fileDialog.selected
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onFileChanged: {
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d.reload()
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}
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nameFilters: ["*.qmlc", "*.jsc", "*.pyc", ".#*", ".*", "__pycache__", "*___jb_tmp___", // PyCharm safe write
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"*___jb_old___"]
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}
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}

‎README.md

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# C++ Qt Live Coding
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This project aims to be the C++ version for Qt/QML live coding.
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In constrast to other live coding environments, this project is a live coding QML module meant to be integrated into your application.
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Integrating QML live coding into your application significantly boosts your HMI developers productivity. Compared to stand-alone solutions, this approach enables integration of C++ QML components without deploying them first.
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Additionally, it enabled customization of the live coding environemnt, including pre-loading of resource intensive QML components.
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## Install
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## How to Use

‎applicationhelpers.cpp

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#include "applicationhelpers.h"
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#include <QDesktopServices>
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#include <QLocale>
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#include <QProcess>
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#include <QSettings>
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#include <QCoreApplication>
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ApplicationHelpers::ApplicationHelpers(QQmlEngine *engine, QObject *parent)
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: QObject(parent)
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, m_engine(engine)
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{
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}
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bool ApplicationHelpers::openUrlWithDefaultApplication(const QUrl &url) const
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{
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return QDesktopServices::openUrl(url);
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}
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void ApplicationHelpers::clearQmlComponentCache() const
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{
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m_engine->clearComponentCache();
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}
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QString ApplicationHelpers::currentLanguage() const
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{
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const auto languages = QLocale().uiLanguages();
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return languages.first();
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}
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void ApplicationHelpers::setLanguage(const QString &language)
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{
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QSettings settings;
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settings.setValue("language", language);
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settings.sync();
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}
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void ApplicationHelpers::restartApplication()
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{
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qApp->quit();
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QProcess::startDetached(qApp->arguments()[0], qApp->arguments());
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}

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