Qt5.7 this example gives the "pointer" cursor, but Qt5.8, i get the "ibeam" cursor (like i am to insert).
import QtQuick 2.7
import QtQuick.Controls 2
ApplicationWindow
{
width: 1024
height: 800
visible: true
Flickable
{
anchors.fill: parent
flickableDirection: Flickable.VerticalFlick
TextArea.flickable: TextArea
{
font.pixelSize: 25
text: "hello world"
readOnly: true
}
}
}
Is this a deliberate change, if so, how can i show the pointer cursor for a read-only TextArea?
thanks.
update #1:
adding a dummy MouseArea appears to fix it. I don't know why/
like this:
Flickable
{
anchors.fill: parent
flickableDirection: Flickable.VerticalFlick
TextArea.flickable: TextArea
{
font.pixelSize: 25
text: "hello world"
readOnly: true
MouseArea
{
anchors.fill: parent
enabled: false
}
}
}
Following comments of Mitch and Jpnurmi, apparently this was a bug that is now fixed. Great!
In the meantime, my workaround is a dummy MouseArea
TextArea.flickable: TextArea
{
font.pixelSize: 25
text: "hello world"
readOnly: true
MouseArea
{
anchors.fill: parent
enabled: false
}
}
Related
I have a SwipeView that loads its internal elements through a Repeater and a Loader.
I would like to swipe between the items forward and backward by just clicking the arrows on the right and left of the SwipeView.
How can I implement this behavior in QML?
SwipeView {
id: __swipeView
Layout.fillHeight: true
Layout.fillWidth: true
Repeater {
model: 3
Loader {
source: "qrc:/../SwipeDelegate.qml"
}
}
}
Within your delegate, you can access the SwipeView via the SwipeView attached property, and then increment or decrement the current index as necessary:
import QtQuick 2.6
import QtQuick.Controls 2.0
ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
SwipeView {
anchors.fill: parent
Repeater {
model: 3
Item {
id: delegate
Button {
text: "<"
enabled: index > 0
onClicked: delegate.SwipeView.view.decrementCurrentIndex()
anchors.left: parent.left
anchors.verticalCenter: parent.verticalCenter
}
Label {
text: "Page " + (index + 1)
anchors.centerIn: parent
}
Button {
text: ">"
enabled: index < delegate.SwipeView.view.count - 1
onClicked: delegate.SwipeView.view.incrementCurrentIndex()
anchors.right: parent.right
anchors.verticalCenter: parent.verticalCenter
}
}
}
}
}
It's important to use the functions as opposed to setting currentIndex directly, for the reasons described here.
I am working on an android application and I am facing a problem. In a page of the application I have some input fields, one of them is for date and I wanted to add a Calendar that open on demand for selecting the date or just enter the date manually, for this, I created a custom component which is composed of a TextInput and a button which when clicked will create the calendar item with a loader and set the size of the loader to 80 (it was 0 initially) all this components are included in a columnlayout. When the button get clicked the calendar is drawn below the other input fields.
import QtQuick 2.5
import QtQuick.Controls 1.4
import QtQuick.Layouts 1.1
FocusScope {
id: root
Layout.preferredHeight: 20
property alias text: input.text
property alias border: background.border
property alias backgroundColor: background.color
property alias textColor: input.color
ColumnLayout{
anchors.fill: parent
spacing: 1
RowLayout{
Layout.fillHeight: true
Layout.fillWidth: true
Rectangle {
id: background
Layout.fillHeight: true
Layout.fillWidth: true
color: "darkgrey"
TextInput {
id: input
anchors.fill: parent
anchors.margins: 3
verticalAlignment: TextInput.AlignVCenter
focus: true
text: dateInput.selectedDate
}
}
CustomButton {
id: calandar
Layout.fillHeight: true
Layout.preferredWidth: 40
image: "icons/CalandarButton.svg"
onClicked: {
console.log("clicked calandar")
if(calendarLoader.status === Loader.Null){
calendarLoader.height = 80
calendarLoader.sourceComponent = Qt.createQmlObject("import QtQuick 2.5; import QtQuick.Controls 1.4; Calendar {}",
calendarLoader,
"calandarpp")
}
else{
calendarLoader.height = 0
calendarLoader.sourceComponent = undefined
}
}
}
}
Loader {
id: calendarLoader
Layout.fillWidth: true
height: 0
}
}
}
If something is below, then try changing its z coordinate.
There is no need to do Qt.createQmlObject() ever. It's enough to toggle Loader.active or Item.visible.
Example is not reproducible, make sure that it runs by itself with qmlscene.
This works for me:
import QtQuick 2.5
import QtQuick.Controls 1.4
import QtQuick.Layouts 1.1
FocusScope {
id: root
Layout.preferredHeight: 20
property alias text: input.text
property alias border: background.border
property alias backgroundColor: background.color
property alias textColor: input.color
z: 1
Loader {
id: calendarLoader
active: false
sourceComponent: Calendar {}
z: 1
}
ColumnLayout {
anchors.fill: parent
spacing: 1
RowLayout{
Layout.fillHeight: true
Layout.fillWidth: true
Rectangle {
id: background
Layout.fillHeight: true
Layout.fillWidth: true
color: "darkgrey"
TextInput {
id: input
anchors.fill: parent
anchors.margins: 3
verticalAlignment: TextInput.AlignVCenter
focus: true
}
}
Button {
id: calandar
Layout.fillHeight: true
Layout.preferredWidth: 40
onClicked: {
console.log("clicked calandar")
calendarLoader.active = !calendarLoader.active
}
}
}
}
}
I created an interface has a ListView and two Buttons. When click on Scan button it will call to C++ and make change to the model of ListView. After that C++ will emit signal to inform model is changed therefore ListView in QML will update with new model. I want to make BusyIndicator running during that process. How can i do that ?.
I saw a few solutions on stackoverflow like this one: BusyIndicator does not show up but none of them worked for my case.
Can anyone help me ? Thanks.
Here is my qml code:
import QtQuick 2.5
import QtQuick.Layouts 1.3
import Qt.labs.controls 1.0
Rectangle
{
objectName: "bluetoothPage"
anchors.fill: parent
property var bluetoothDataModel: messageFromApp.bluetoothData
onBluetoothDataModelChanged: listView.update()
signal qmlScanButtonSignal()
signal qmlDisconnectButtonSignal()
ColumnLayout
{
anchors.fill: parent
spacing: 6
RowLayout
{
Layout.fillWidth: true
Text
{
Layout.fillWidth: true
text: "Connect with ECU"
font.bold: true
font.pixelSize: 20
}
BusyIndicator
{
id: busyIndicator
Layout.preferredWidth: 30
Layout.preferredHeight: 30
running: false
visible: false
}
}
GroupBox
{
Layout.fillHeight: true
Layout.fillWidth: true
title: qsTr("Available device:")
ListView
{
id: listView
anchors.fill: parent
model: bluetoothDataModel
delegate: Component
{
Item
{
width: parent.width
height: 40
Column
{
Text { text: "Name:" + model.modelData.name }
Text { text: "Number:" + model.modelData.macAddress }
}
MouseArea
{
anchors.fill: parent
onClicked: listView.currentIndex = index
}
}
}
highlight: Rectangle
{
color: "blue"
}
}
}
RowLayout
{
Layout.fillWidth: true
Layout.preferredHeight: 10
Button
{
Layout.fillHeight: true
Layout.fillWidth: true
text: "Scan"
onClicked: qmlScanButtonSignal()
}
Button
{
Layout.fillHeight: true
Layout.fillWidth: true
text: "Disconnect"
onClicked: qmlDisconnectButtonSignal()
}
}
}
}
Only this solution worked for me in my case. However, like everybody said using QCoreApplication::processEvents()
is really bad practice. I also try to using QThread but it got crash when emitted signal inside thread. If you guy have any futher solutions, please let me now. I'm really appreciate. Thanks.
QML
BusyIndicator {
running: CPPModule.busy
}
CPP
void CPPModule::setBusy(const bool &busy)
{
m_busy = busy;
emit busyChanged();
}
void CPPModule::InsertIntoDB()
{
setBusy(true);
QThread::msleep(50);
QCoreApplication::processEvents();
/*
very Long Operation
*/
setBusy(false);
}
Another solution is this:
Timer {
id: myTimer
interval: 1
onTriggered: {
app.someLongRunningFunction();
myActivityIndicator.visible = false;
}
}
Butoon{
....
onClicked: {
myActivityIndicator.visible=true;
myTimer.start();
}
}
I have QML ListView, which shows customers from database via UeCustomerModel. Customers are sorted in model via MySQL statement. All works fine, but now I want to add sections into ListView, so the customers are sorted in sections by first letter criteria. Here is my ListView:
ListView
{
id: ueCustomersListView
Layout.fillWidth: true
Layout.fillHeight: true
Layout.alignment: Qt.AlignHCenter|Qt.AlignBottom
Layout.margins: 8
clip: true
spacing: 8
delegate: UeCustomerSelectorDelegate
{
ueParamWidth: ueCustomersListView.width
ueParamHeight: 128
ueParamImage: "image://ueCustomerModel/"+model.ueRoleImage
ueParamName: model.ueRoleCustomerName
ueParamTaxId: model.ueRoleCustomerTaxId
ueParamCurrentDebt: model.ueRoleCustomerCurrDebt
ueParamMaxDebt: model.ueRoleCustomerMaxDebt
} // delegate
section.property: model.ueRoleCustomerName // HERE RUNTIME ERROR OCCURS
section.criteria: ViewSection.FirstCharacter
section.delegate: UeCustomerSelectorSectionDelegate
{
ueParamWidth: ueCustomersListView.width
ueParamHeight: 128
ueParamName: section
} // section.delegate
Component.onCompleted:
{
model=ueCustomerModel;
} // Component.onCompleted
} // ListView
and here is section delegate:
import QtQuick 2.5
import QtQuick.Layouts 1.1
Rectangle
{
property int ueParamWidth
property int ueParamHeight
property string ueParamName
width: ueParamWidth
height: ueParamHeight
color: "#4682b4"
antialiasing: true
smooth: true
RowLayout
{
anchors.fill: parent
anchors.margins: 8
spacing: 8
Text
{
color: "#ffffff"
Layout.fillWidth: true
Layout.fillHeight: true
Layout.alignment: Qt.AlignHCenter|Qt.AlignVCenter
antialiasing: true
text: ueParamName
font.family: "Courier"
font.bold: true
font.pointSize: 12
clip: true
textFormat: Text.RichText
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
} // Text
} // RowLayout
} // Rectangle
Now, when ListView is shown, there are no sections visible. What did I miss, i.e., how do I correct section.property: model.ueRoleCustomerName statement to get alphabetical letters from customers (A, B, C, ...). I want ListView to section delegates according to Customer Name (delivered from database via model) first letter. Also, in mentioned line of code, I get QML runtime error Unable to assign [undefined] to QString. Why?
P.S.: model works perfectly (is fast, can search accross customers using TextField), I've tested it 5 times.
According to user sk2212's hint, I've upgraded the code with:
section.property: "ueParamName"
section.criteria: ViewSection.FirstCharacter
section.delegate: UeCustomerSelectorSectionDelegate
{
ueParamWidth: ueCustomersListView.width/2
ueParamHeight: ueCustomersListView.height/4
ueParamName: model.ueRoleCustomerName.subString(0,1)
} // section.delegate
and here is Section delegate:
import QtQuick 2.5
import QtQuick.Layouts 1.1
Rectangle
{
property int ueParamWidth
property int ueParamHeight
property string ueParamName
width: ueParamWidth
height: ueParamHeight
color: "#4682b4"
antialiasing: true
smooth: true
RowLayout
{
anchors.fill: parent
anchors.margins: 8
spacing: 8
Text
{
color: "#ffffff"
Layout.fillWidth: true
Layout.fillHeight: true
Layout.alignment: Qt.AlignHCenter|Qt.AlignVCenter
antialiasing: true
text: ueParamName
font.family: "Courier"
font.bold: true
font.pointSize: 12
clip: true
textFormat: Text.RichText
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
} // Text
} // RowLayout
} // Rectangle
Still does not work.
You have to use the section.property as a model data element:
delegate: UeCustomerSelectorDelegate
{
ueParamWidth: ueCustomersListView.width
ueParamHeight: 128
ueParamImage: "image://ueCustomerModel/"+model.ueRoleImage
ueParamName: model.ueRoleCustomerName
ueParamTaxId: model.ueRoleCustomerTaxId
ueParamCurrentDebt: model.ueRoleCustomerCurrDebt
ueParamMaxDebt: model.ueRoleCustomerMaxDebt
alphabet: model.ueRoleCustomerName.substring(0,1)
} // delegate
section.property: "alphabet"
I have a very simple ListView.
ListView {
id: logListView
anchors.fill: parent
model: LogEntryListModel
delegate:
Text {
text: "Log Item: " + timestamp + ", " + verb
}
highlight: Rectangle { color: "lightsteelblue"; radius: 5 }
focus: true
clip: true
}
It shows the model fine and highlights the first item. It does not move the highlight when I click on another item nor when I use the arrow keys. I know how to control the highlighted item manually by adding event handlers but I see references in the docs to automatic handling of the selectedItem. I was wondering:
Does QML provide an automatic changing of the selected item highlighting? What do I need to add to turn it on?
The keyboard handling is done automatically:
import QtQuick 2.0
import QtQuick.Controls 1.1
Rectangle {
width: 400
height: 400
ListView {
id: logListView
anchors.fill: parent
model: 10
delegate: Text {
text: "Log Item: " + modelData
}
highlight: Rectangle {
color: "lightsteelblue";
radius: 5
}
focus: true
clip: true
}
}
If using the up and down arrow keys does not change the selected item for you, using the code above, then it's a bug.
Using a mouse to select items is not handled by default, however; only flicking/dragging of the list is. It's easy to add, though:
import QtQuick 2.0
import QtQuick.Controls 1.1
Rectangle {
width: 400
height: 400
ListView {
id: logListView
anchors.fill: parent
model: 10
delegate: Text {
text: "Log Item: " + modelData
MouseArea {
anchors.fill: parent
onClicked: logListView.currentIndex = index
}
}
highlight: Rectangle {
color: "lightsteelblue";
radius: 5
}
focus: true
clip: true
}
}