I've got a TableView with two TableViewColumns and would like to prevent them from being resized.
How can I do this?
TableView {
TableViewColumn {
title: "Name"
width: parent.width - 20
}
TableViewColumn {
width: 18
delegate: CheckBox {
}
}
TableViewColumn {
title: "Name"
width: parent.width - 20
resizable: false
}
Related
I try to make a cell editable using a tableview in qt. I have found a few examples and came up with the following:
TableView {
id: tableView
objectName: "tableView"
horizontalScrollBarPolicy: -1
selectionMode: SelectionMode.SingleSelection
Layout.minimumWidth: 300
Layout.fillHeight: true
Layout.fillWidth: true
model: trackableInfoModel
itemDelegate: Rectangle {
Text {
anchors.verticalCenter: parent.verticalCenter
text: styleData.value
}
MouseArea {
id: cellMouseArea
anchors.fill: parent
onClicked: {
if(styleData.column === 2){
//do something
}
}
}
}
From what I found it looks like I need an itemDelegate to paint each cell. Then I add a MouseArea to the cell and check which cell was selected. In my case I only need to react on the cells in column 2.
The thing is when I use the code shown above I get the error that:
JavaScipt blocks are not supported in a QT Quick UI form. (M223)
Because of that I tried to register a property alias for cellMouseArea like this:
property alias cellMouseArea : cellMouseArea
However that leads to this error:
qrc:/EditPageForm.ui.qml:24 Invalid alias reference. Unable to find id "cellMouseArea"
Overlay cell with TextInput on click.
import QtQuick 2.7
import QtQuick.Controls 1.4
import QtQuick.Layouts 1.0
ApplicationWindow {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
TableView {
id: tableView
objectName: "tableView"
horizontalScrollBarPolicy: -1
selectionMode: SelectionMode.SingleSelection
anchors.fill: parent
TableViewColumn {
id: titleColumn
title: "Title"
role: "title"
movable: false
resizable: false
width: tableView.viewport.width - authorColumn.width
}
TableViewColumn {
id: authorColumn
title: "Author"
role: "author"
movable: false
resizable: false
width: tableView.viewport.width / 3
}
model: ListModel {
id: libraryModel
ListElement {
title: "A Masterpiece"
author: "Gabriel"
}
ListElement {
title: "Brilliance"
author: "Jens"
}
ListElement {
title: "Outstanding"
author: "Frederik"
}
}
itemDelegate: Rectangle {
Text {
anchors { verticalCenter: parent.verticalCenter; left: parent.left }
color: "black"
text: styleData.value
}
MouseArea {
id: cellMouseArea
anchors.fill: parent
onClicked: {
// Column index are zero based
if(styleData.column === 1){
loader.visible = true
loader.item.forceActiveFocus()
}
}
}
Loader {
id: loader
anchors { verticalCenter: parent.verticalCenter; left: parent.left}
height: parent.height
width: parent.width
visible: false
sourceComponent: visible ? input : undefined
Component {
id: input
TextField {
anchors { fill: parent }
text: ""
onAccepted:{
// DO STUFF
loader.visible = false
}
onActiveFocusChanged: {
if (!activeFocus) {
loader.visible = false
}
}
}
}
}
}
}
}
import QtQuick 2.7
import QtQuick.Controls 1.3
import QtQuick.Controls.Styles 1.3
Rectangle {
width: 640
height: 480
ListModel {
id: tstModel
ListElement { animal: "dog" }
}
TableView {
id: tableView
anchors.fill: parent
model: tstModel
headerDelegate: Item{
height: 50
width: animalColumn.width
TextField{
text: styleData.value
anchors.fill: parent
}
}
TableViewColumn {
id: animalColumn
title: "Animal"
role: "animal"
width: 50
resizable: false
movable: false
}
}
}
This code is not acting as I expect. Textfield gets focus only when I am clicking the header with right button. And there is a Textfield works fine next to the first column header, but it's not what I want.
How to add a editable TableView header in qml?
I find this headerDelegate to be rather buggy or not supposed to be used in this scenario. I would rather implemnt a header from scrath to use for your use-case. Try this as a starting point:
Rectangle {
width: 640
height: 480
ListModel {
id: tstModel
ListElement { animal: "cat" }
ListElement { animal: "cat" }
ListElement { animal: "cat" }
ListElement { animal: "cat" }
ListElement { animal: "cat" }
ListElement { animal: "cat" }
ListElement { animal: "cat" }
}
TextField{
id: tableViewCustomHeader
property int curRow: tableView.currentRow
property bool isActual: curRow >= 0
function reloadText() { text = tstModel.get(curRow).animal }
function saveText() { tstModel.setProperty(curRow, "animal", text); tableView.model = tstModel; }
width: animalColumn.width
height: isActual ? 20 : 0
onCurRowChanged: {
if ( isActual >= 0 ) reloadText();
focus = true;
}
onTextChanged: if ( isActual >= 0 ) saveText()
}
TableView {
id: tableView
anchors {
top: tableViewCustomHeader.bottom
bottom: parent.bottom
left: parent.left
right: parent.right
}
model: tstModel
headerVisible: false
TableViewColumn {
id: animalColumn
title: "Animal"
role: "animal"
width: 200
resizable: false
movable: false
}
}
}
You can edit this anyway you want afterwards.
If it's a strict requirement to go with headerDelegate - this what I've end up with:
Rectangle {
width: 640
height: 480
ListModel {
id: tstModel
ListElement { animal: "dog" }
ListElement { animal: "cat" }
}
TableView {
id: tableView
anchors.fill: parent
model: tstModel
headerDelegate:
TextField{
property int curRow: tableView.currentRow
function reloadText() { text = tstModel.get(curRow).animal }
function saveText() { tstModel.setProperty(curRow, "animal", text); tableView.model = tstModel; }
onCurRowChanged: {
if ( curRow >= 0 ) reloadText()
}
onTextChanged: saveText()
width: parent.width
}
TableViewColumn {
id: animalColumn
title: "Animal"
role: "animal"
width: 200
resizable: false
movable: false
}
}
}
But, again, it works in a very strange way once you are adding TextField to it, so I would vote against it.
I am trying to create a component in QML as shown in the attached screenshot
AFAIK, TableView is the component that I should use to create something like this using QML. Looking at the example here it seems that it can support multiple columns and the style is configurable. However, I am not sure how to add the checkbox control and an image element in the columns.
You can start from here:
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
Window {
visible: true
width:1000; height: 500
ListModel {
id: mymodel
ListElement {
title: "my_name.mp4"
check: true
img: "1450465860217s.jpg" //your own img url here
filesize: "1.5GB"
lenght: "20:00"
lastMod: "12/02/2014"
}
ListElement {
title: "my_nam2.mp4"
check: false
img: "1450465860217s.jpg" //your own img url here
filesize: "400MB"
lenght: "8:00"
lastMod: "01/01/2015"
}
ListElement {
title: "my_nam2.mp4"
check: false
img: "1450465860217s.jpg" //your own img url here
filesize: "1.5GB"
lenght: "1:20:00"
lastMod: "12/13/2016"
}
}
TableView {
width: 1000; height: 500
anchors.centerIn: parent
TableViewColumn {
role: "title"
title: "Title"
width: 200
}
TableViewColumn {
role: "filesize"
title: "FileSize"
}
TableViewColumn {
role: "lenght"
title: "Lenght"
}
TableViewColumn {
role: "lastMod"
title: "Last Modified"
}
model: mymodel
rowDelegate: Rectangle{
color: "white"
height: 40
}
itemDelegate: RowLayout {
width: parent == null? 0 : parent.width
Loader{
sourceComponent: styleData.column == 0 ?
things : null
}
Component {
id: things
RowLayout{
height: 30
CheckBox{
id: itemCheckBox
checked: mymodel.get(styleData.row).check
}
Image{
Layout.preferredWidth: 80
Layout.preferredHeight: 40
source: mymodel.get(styleData.row).img
}
}
}
Text {
//anchors.centerIn: parent
text: styleData.value
}
}
}
}
You'll need to code your model in c++ and polish the interface, but its a good starting point.
I have a simple treeview model with defined roles.
Here is a code:
TreeView {
model: theModel
itemDelegate: Rectangle {
color: ( styleData.row % 2 == 0 ) ? "white" : "lightblue"
height: 20
Text {
text: styleData.value === undefined ? "" : styleData.value
}
}
TableViewColumn {
width: 100
role: "name_role"
title: "Map"
}
TableViewColumn {
width: 50
role: "description_role"
title: "Description"
}
Image {
width: 15
source: description_role + ".png"
}
}
In the second column i've got correct description displayed, but when i use this role as an image source i've got mistake "role is undefined".
The question is: How to correctly define role as an image source?
I have found the answer, by reading documentation of the TableViewColumn
The QML treeView should be like this:
TreeView {
model: theModel
itemDelegate: Rectangle {
color: ( styleData.row % 2 == 0 ) ? "white" : "lightblue"
height: 20
Text {
text: styleData.value === undefined ? "" : styleData.value
}
}
TableViewColumn {
width: 100
role: "name_role"
title: "Map"
}
TableViewColumn {
width: 50
role: "description_role"
title: "Description"
}
TableViewColumn {
width: 50
role: "description_role"
title: "Icon"
delegate: Image {
source: styleData.value + ".png"
}
}
}
I'm using a rowDelegate to implement variable row heights as follows. However, it doesn't use the default background colors for selected/alternate rows. How can I preserve all defaults that I'm not trying to override?
TableView {
id: messagesTable
TableViewColumn {
role: "severity"
title: ""
width: 20
delegate: Image {
anchors.centerIn: parent
fillMode: Image.Pad
source: iconSources[styleData.value.toLowerCase()]
}
}
TableViewColumn {
role: "message"
title: "Message"
width: 300
}
TableViewColumn {
role: "source"
title: "File"
width: 150
}
TableViewColumn {
role: "startLine"
title: "Line"
width: 40
}
TableViewColumn {
role: "startColumn"
title: "Column"
width: 50
}
rowDelegate: Rectangle {
width: childrenRect.width
height: (messagesModel.get(styleData.row).lineCount || 1) * 20
}
model: messagesModel
}
You can't.
The general rule of styling with Qt Quick Controls is: once you override a delegate, you start from scratch. If the styles provided a DefaultTableViewRowDelegate type, for example, you could construct an instance of that and then it would work, but since the default delegates are written inline, you have no way of accessing them.