Is there any way to handle key press events in ApplicationWindow of QtQuick.Controls component? Documentation of Qt5.3 does not provide any way to do this. Also, it says that Keys is only exists in Item-objects . When I try to handle key press event it says "Could not attach Keys property to: ApplicationWindow_QMLTYPE_16(0x31ab890) is not an Item":
import QtQuick 2.2
import QtQuick.Controls 1.2
import QtQuick.Controls.Styles 1.1
import QtQuick.Window 2.1
ApplicationWindow {
id: mainWindow
visible: true
width: 720
height: 405
flags: Qt.FramelessWindowHint
title: qsTr("test")
x: (Screen.width - width) / 2
y: (Screen.height - height) / 2
TextField {
id: textField
x: 0
y: 0
width: 277
height: 27
placeholderText: qsTr("test...")
}
Keys.onEscapePressed: {
mainWindow.close()
event.accepted = true;
}
}
ApplicationWindow {
id: mainWindow
Item {
focus: true
Keys.onEscapePressed: {
mainWindow.close()
event.accepted = true;
}
TextField {}
}
}
Maybe this will help some.
Using a Shortcut doesn't require focus to be set.
ApplicationWindow {
id: mainWindow
Shortcut {
sequence: "Esc"
onActivated: mainWindow.close()
}
}
}
Related
QML Popup and derived controls are creating a PopupItem object which is a visual representation of it, but Popup itself is parented to the contentData of the application window. objectName specified for Popup is not applied to PopupItem. For example, the following application:
import QtQuick 2.12
import QtQuick.Controls 2.12
ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Popup Test")
Button {
text: "Open"
onClicked: dummyPopup.open()
}
Popup {
id: dummyPopup
objectName: "dummyPopup"
x: 100
y: 100
width: 200
height: 300
modal: true
focus: true
}
}
creates PopupItem with empty objectName
Is there a way to set objectName for PopupItem from QML?
Set the objectName of its contentItem upon completion:
import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12
ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Popup Test")
Button {
text: "Open"
onClicked: dummyPopup.open()
}
Popup {
id: dummyPopup
objectName: "dummyPopup"
x: 100
y: 100
width: 200
height: 300
modal: true
focus: true
Component.onCompleted: {
contentItem.objectName = "foo"
print(contentItem)
}
}
}
By the way, if this is for auto tests, I have a hack in C++ that avoids the need to give an objectName to the contentItem:
QObject *TestHelper::findPopupFromTypeName(const QString &typeName) const
{
QObject *popup = nullptr;
foreach (QQuickItem *child, overlay->childItems()) {
if (QString::fromLatin1(child->metaObject()->className()) == "QQuickPopupItem") {
if (QString::fromLatin1(child->parent()->metaObject()->className()).contains(typeName)) {
popup = child->parent();
break;
}
}
}
return popup;
}
You can then use that function like this in your test:
const QObject *newProjectPopup = findPopupFromTypeName("NewProjectPopup");
QVERIFY(newProjectPopup);
QTRY_VERIFY(newProjectPopup->property("opened").toBool());
I have the following code:
MyTest.qml
import QtQuick 2.0
FocusScope {
anchors.fill: parent
Keys.onReturnPressed: {
console.log("++++++++++")
}
}
main.qml
import QtQuick 2.9
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
MyTest {
focus: true
Keys.onReturnPressed: {
console.log("==========")
event.accepted = true
}
}
}
The output is:
++++++++++
==========
What is event.accepted = true invalid?
I want to intercept keystroke events in Window and process the event on ly in Window (only output "=========="). How to do that?
You can't disconnect a method when you use onReturnPressed: {} definition.
You have to use Connections for that.
A quick example:
import QtQuick 2.9
import QtQuick.Controls 1.4
Item {
id: myItem
anchors.fill: parent
property bool acceptEvents: true
signal returnPressed()
Keys.onReturnPressed: returnPressed()
Connections {
id: connection
target: myItem
enabled: acceptEvents
onReturnPressed: {
console.log("++++++++++")
}
}
}
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
VolumeSlider {
id: obj
anchors.fill: parent
focus: true
Keys.onReturnPressed: {
console.log("==========")
event.accepted = true
}
Component.onCompleted: {
obj.acceptEvents = false; // Remove connections
}
}
}
I'm working on a DatePicker control for QtQuick.Controls 2.0 I have problem on drawing popup calendar over other page items. does anyone help me on this ?
Component Screenshot
My DatePicker source code:
import QtQuick 2.0
import QtQuick.Controls 2.0
import QtQuick.Controls 1.4 as OldControls
Rectangle {
id: root
width: childrenRect.width
height: childrenRect.height
clip: true
property bool expanded: false
property bool enabled: true
property alias selectedDate: cal.selectedDate
MouseArea {
height: expanded ? txt.height + cal.height : txt.height
width: expanded ? Math.max(txt.width, cal.width) : txt.width
hoverEnabled: true
enabled: root.enabled
onHoveredChanged: {
expanded = root.enabled && containsMouse
}
TextField {
id: txt
enabled: root.enabled
text: cal.selectedDate
inputMask: "0000-00-00"
}
OldControls.Calendar {
id: cal
anchors.top: txt.bottom
anchors.left: txt.left
visible: expanded
}
}
}
and here is my DatePicker usage in page:
import QtQuick 2.0
import QtQuick.Layouts 1.0
import QtQuick.Controls 2.2
import "./Components"
Item {
anchors.fill: parent
GridLayout {
columns: 2
Text { text: qsTr("Date Filter: ") }
DatePicker {}
Text { text: qsTr("name filter: ") }
TextField {}
}
}
I waste my time to find how set the visible property to false, the delegate being in an another qml file.
For instance here is a simple example based on Places Map.
Marker.qml
import QtQuick 2.0
import QtLocation 5.6
MapQuickItem {
id: idPointsMarker
sourceItem: Loader{sourceComponent: idRect}
visible: true //if set manually to false, everything works correctly
Component{
id: idRect
Rectangle{
width: 20
height: 20
color: "blue"
}
}
}
and the main.qml
import QtQuick 2.0
import QtQuick.Window 2.0
import QtLocation 5.6
import QtPositioning 5.6
Window {
width: 512
height: 512
visible: true
PositionSource {
...
}
property variant locationOslo: QtPositioning.coordinate( 59.93, 10.76)
PlaceSearchModel {
...
}
Map {
id: map
anchors.fill: parent
plugin: Plugin {name: "osm"}
center: locationOslo
zoomLevel: 13
MouseArea {
id : mouseMap
anchors.fill: parent
onDoubleClicked: {
console.log("DoubleClicked")
Marker.idPointsMarker.visible = false // pb is here
}
}
MapItemView {
model: searchModel
delegate: Marker{
coordinate: place.location.coordinate
}
}
}
}
I wish to toggle the visibility to false on doubleclick. I am not able to access the property anyhow the way i write it. What is the correct syntax?
Sorry for a so simple question. Thanks for help.
You do not have to set the property in main.qml, you must do it in Marker.qml, since the elements of Marker.qml can access all the elements of main.qml. One solution is to establish a property of type bool that manages the visibility and that changes in the double click:
main.qml
Map {
[...]
property bool isVisibleItems: true
MouseArea {
id : mouseMap
anchors.fill: parent
onDoubleClicked: map.isVisibleItems = !map.isVisibleItems
}
[...]
Marker.qml
import QtQuick 2.0
import QtLocation 5.6
MapQuickItem {
id: idPointsMarker
sourceItem: Loader{sourceComponent: idRect}
visible: map.isVisibleItems
Component{
id: idRect
Rectangle{
width: 20
height: 20
color: "blue"
}
}
}
In the following link there is an example
I have a combobox in qml in a as a TableViewColummn and I define it as follows:
import QtQuick 2.3
import QtQuick.Window 2.2
import QtQuick.Layouts 1.1
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
ListModel {
id: comboModel
ListElement {
text: ""
Index: -1
Dims: -1
}
}
TableViewColumn {
id: imageTypeList
role: "ImageType"
title: "Image Type"
width: 100
delegate: Rectangle {
ComboBox {
anchors.verticalCenter: parent.verticalCenter
anchors.margins: 2
model: comboModel
onActivated : {
console.log(comboModel.get(index).Index)
}
}
}
}
My question is that if it is possible to disable a combobox menu item given a index to the item in the ComboBox. So, I would not like to change the underlying model but actually simply disable the item and not allow the user to select it.
Is it possible to disable a ComboBox menu item ... and not allow the user to select it?
Sure, it is possible.
To do it using Quick Controls 2 you need to create ComboBox delegate this way:
import QtQuick 2.6
import QtQuick.Window 2.2
import QtQuick.Controls 2.0
Window {
visible: true
width: 640
height: 200
title: qsTr("Let's disable some items in ComboBox")
ComboBox {
id: control
currentIndex: 0
anchors.centerIn: parent
model: [
{ text: "Enabled item.", enabled: true },
{ text: "Supposed to be disabled. Can't click on it.", enabled: false},
{ text: "Last, but enabled item.", enabled: true}
]
width: 500
textRole: "text"
delegate: ItemDelegate {
width: control.width
text: modelData.text
font.weight: control.currentIndex === index ? Font.DemiBold : Font.Normal
highlighted: ListView.isCurrentItem
enabled: modelData.enabled
}
}
}
If you are using Quick Controls 1, you should provide your own implementation of ComboBox component.