here.
Trying a very simple test, just to display two text boxes centralized on the screen. However, when I start the application they look wrong. Then, after I re-size the window , the screen refreshes and it looks correct. Why can't it look correct at startup?
When I launch the application this is what I see (incorrect)
After I re-size the window (correct)
QML
Window {
id: mainWindowId
width: 320
height: 240
visible: true
color: "black"
title: qsTr("Test")
Row
{
anchors.horizontalCenter: parent.horizontalCenter
anchors.verticalCenter: parent.verticalCenter
Rectangle
{
id: mRect1
width : mText1.implicitWidth;
height : mText1.implicitHeight;
color : "cornflowerblue"
Text {
font.pointSize: 24
color: "white"
anchors.centerIn: parent
id: mText1;
text: mLastName
}
}
Rectangle
{
id: mRect2
width : mText2.implicitWidth;
height : mText2.implicitHeight;
color : "cornflowerblue"
Text {
font.pointSize: 24
color: "white"
anchors.centerIn: parent
id: mText2;
text: mFirstName
}
}
}
}
Related
I am using a template to create an app using QT Creator and QML and am hoping to create a landing page that allows users to select which "page" they want to navigate to by clicking an icon.
I've figured out how to get a button on the landing page and have it open another page. However, I am using x and y positions of the button and it doesn't scale correctly when the window size changes.
Ultimately, I am trying to put 6 buttons on the landing page in a way that scales correctly.
I have attached an image of my ideal Landing Page design and have also attached code for what I already have.
I hope I was able to explain this well enough. Please let me know if I can clarify anything.
import QtQuick 2.2
import QtQuick 2.6
import QtQuick.Controls 1.1
import QtQuick.Controls.Styles 1.4
import "components" as Components
//BACKGROUND COLOR
Rectangle {
signal signInClicked(string tourId)
color: "#242424"
AnimatedImage {
anchors.fill: parent
source: app.landingpageBackground
fillMode: Image.PreserveAspectCrop
visible: source > ""
}
Rectangle {
anchors.fill: parent
gradient: Gradient {
GradientStop { position: 0.0; color: "#00000000";}
GradientStop { position: 1.0; color: "#00000000";}
}
}
//TITLE TEXT
Text {
id: titleText
anchors {
left: parent.left
right: parent.right
top: parent.top
topMargin: app.height/10
}
font.family: app.customTitleFont.name
text: app.info.title
font {
pointSize: 60
pointSize: app.titleFontSize * 1.4
}
color: "#00000000"
horizontalAlignment: Text.AlignHCenter
wrapMode: Text.Wrap
}
Button {
id: signInButton
anchors {
horizontalCenter: parent.horizontalCenter
bottom: parent.bottom
bottomMargin: 60 * app.scaleFactor
}
opacity: 0.0
style: ButtonStyle {
id: btnStyle
property real width: parent.width
label: Text {
id: lbl
text: signInButton.text
anchors.centerIn: parent
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
width: parent.width
maximumLineCount: 2
elide: Text.ElideRight
wrapMode: Text.WordWrap
color: app.titleColor
font.family: app.customTextFont.name
font.pointSize: app.baseFontSize
}
background: Rectangle {
color: Qt.darker(app.headerBackgroundColor, 1.2)
border.color: app.titleColor
radius: app.scaleFactor * 2
}
}
height: implicitHeight < app.units(56) ? app.units(56) : undefined // set minHeight = 64, otherwise let it scale by content height which is the default behavior
width: Math.min(0.5 * parent.width, app.units(250))
text: qsTr("Let's Play!")
MouseArea{
anchors.fill: parent
onClicked: {
signInClicked("");
}
}
NumberAnimation{
id: signInButtonAnimation
target: signInButton
running: false
properties: "opacity"
from: 0.0
to: 1.0
easing.type: Easing.InQuad
duration: 1000
}
}
AboutPage {
id: aboutPage
}
NewsAndUpdates {
id: newsPage
}
ProgramsPage {
id: programsPage
}
Connections {
target: app
onUrlParametersChanged: {
if (app.urlParameters.hasOwnProperty("appid")) {
signInClicked(app.urlParameters.appid)
}
}
}
Component.onCompleted: {
signInButtonAnimation.start()
}
}
I think this doc should help you. You haven't really defined what you want very well, but I'll show you some examples so you can hopefully take from it what you need.
QML has the concept of "positioners" and "layouts". Positioners help automatically position your objects neatly on the screen. And Layouts try to do that too, but can also stretch your objects to fill available space.
Row:
You can arrange all your buttons in a row and center the row horizontally.
Row {
anchors.horizontalCenter: parent.horizontalCenter
Button { id: btn1 }
Button { id: btn2 }
...
}
Grid:
Similarly, Grid is a positioner that arranges objects into a grid:
Grid {
anchors.horizontalCenter: parent.horizontalCenter
columns: 3
Button { id: btn1 }
Button { id: btn2 }
...
}
GridLayout:
A GridLayout is just like a Grid, but it can also resize the objects to fill up the space. My opinion is layouts can do more, but they're often trickier to use. In this example, the first button should be a fixed size, while the second button should fill up the remaining width.
GridLayout {
anchors.fill: parent
rows: 2
Button { id: btn1; Layout.preferredWidth: 200 }
Button { id: btn2; Layout.fillWidth: true}
...
}
I was working with a GridView in QML. When I click on an element, I want to following highlight to happen:
However, my problem is that I want the blue color to appear below the delegate (not in the white area but still visible on the transparent side part) while the checkmark appears above (so it is visible). I have tried playing around with the z values so that the lowest z should be the blue rectangle, the middle should be the white rectangle part of the delegate, and the highest should be the check mark but i can't seem to make it work. Either the highlight or the delegate has to be on top. Does anyone know any way I can fix this so that it works correctly?
Code for highlight:
highlight:
Rectangle {
z:5
color: "steelblue"; radius: 5; opacity: 0.5
Image{
z:8
id: checkMark
visible: found;
x: parent.width-8-width
y: 8
width: 40;
height: 40;
source: "file:///Users/arjun/Documents/CompetitiveBall/images/checkMark.png"
}
}
Code for delegate:
Component {
id: contactsDelegate
Rectangle{
width: grid.cellWidth
height: grid.cellHeight
color: "transparent"
Rectangle {
z:7
width: grid.cellWidth-20
height: grid.cellHeight-20
id: wrapper
anchors.horizontalCenter: parent.horizontalCenter
anchors.verticalCenter: parent.verticalCenter
border.width: 3
border.color: "black"
radius: 5;
Image{
id: mImage
x:parent.x
width: 65
height:65;
source: picSource
}
Text{
width: grid.cellWidth-15
y: mImage.y+mImage.height+4
anchors.horizontalCenter: parent.horizontalCenter
id: nameText
text: name
font.family: "Palatino Linotype"
font.bold: (grid.isCurrentItem===true)?"true":"false"
horizontalAlignment: Text.AlignHCenter
color:"#050027"
}
MouseArea{
anchors.fill: parent
onClicked:{
console.log("Clicked on :" + name)
//what happens when u click
grid.currentIndex=index;
}
}
}
}
}
Since you want part of the highlight to be underneath the delegate and part of it to be on top, you need to break it up into different pieces. I tested the code below with Qt 5.15.0. I made the normal highlight object draw underneath the delegate. Then I added another Rectangle that follows the highlight that draws on top of the delegate.
GridView
{
id: lv
anchors.fill: parent
anchors.margins: 50
cellWidth: 50
cellHeight: 50
model: 30
// By default, highlight draws behind delegates
// (You can specify a positive z-value to make it draw on top)
highlight: Item
{
Rectangle
{
anchors.centerIn: parent
width: 50
height: 50
color: "green"
}
}
delegate: Rectangle
{
width: 30
height: 30
color: "red"
MouseArea
{
anchors.fill: parent
onClicked: lv.currentIndex = index;
}
}
// This will draw on top of the delegates
// (You can change that by specifying a negative z-value.)
Rectangle
{
id: checkbox
x: lv.highlightItem.x - lv.contentX
y: lv.highlightItem.y - lv.contentY
width: 10
height: 10
color: "blue"
}
}
I'am using Qml to develop a system, I want to change TableViewColumn's default height and its border style. I just want to show the bottom/right borders, to look like table.
In your TableView you could define custom itemDelegate with borders and desired height https://doc.qt.io/qt-5/qml-qtquick-controls-tableview.html#itemDelegate-prop
TableView {
itemDelegate: Rectangle {
height: 30 // put your height here
border.color: "black"
border.width: 1
Text {
anchors.verticalCenter: parent.verticalCenter
color: styleData.textColor
elide: styleData.elideMode
text: styleData.value
}
}
}
You can use rowDelagate property of TableView component.
TableView {
id: idReadDataTableView
anchors.fill: parent
rowDelegate: Rectangle {
width: parent.width
height: 40
}
}
We are developing an application on IMX6 using Qt 5.3.2. The Qt libraries are provided by Yocto.
Our requirement is to list items inside a drop down menu using a particular background style. For this purpose we are using ComboBox provided by Qt Quick Controls and QtQuick.Controls.Styles for customizing the drop down background style. We are using MenuStyle component to customize the drop down.
When we apply the styles, we observed that the drop down bottom border does not close.
Please use the following link to view the picture.
We are not facing this issue in the Desktop. We tried running the same application on Ubuntu 12.04.
https://www.dropbox.com/s/33a57jaxs452c4r/IMX6.JPG?dl=0
https://www.dropbox.com/s/cmvvf3ytxg615q8/Ubuntu.JPG?dl=0
Also, below I've listed the qml code which we used for Customizing the drop down.
ComboBox {
id: comboFilterBy
x: 10
y: 130
z:1
width: 285
height: 39
model : eventFiltersList
Rectangle {
id: arrow
anchors.right: parent.right
width: 20; height: parent.height
border.color: "black"
border.width: 1
Image {
id: arrowIcon
// anchors.fill: parent
width: 10
height: arrow.height
anchors.centerIn: parent
clip: true
smooth: true
fillMode: Image.PreserveAspectFit
source: "images/dropDownArrow.png"
}
}
style: ComboBoxStyle {
background:
Rectangle {
color: "#FFFFFF"
border.width: 1
border.color: "black"
antialiasing: true
}
label: Text {
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.left
font.pointSize: 19
font.family: "WenQuanYi Micro Hei Mono"
color: "black"
text: control.currentText
}
// drop-down customization here
property Component __dropDownStyle: MenuStyle {
__maxPopupHeight: 240
__menuItemType: "comboboxitem"
padding.bottom : getPaddingLength(1)
frame: Rectangle { // background
color: "#fff"
border.width: 1
}
itemDelegate.label: // an item text
Text {
verticalAlignment: Text.AlignVCenter
horizontalAlignment: Text.AlignHCenter
font.pointSize: 19
font.family: "WenQuanYi Micro Hei Mono"
color: "black"
text: styleData.text
}
itemDelegate.background: Rectangle { // selection of an item
color: styleData.selected ? "#5692c4" : "transparent"
}
__scrollerStyle: ScrollViewStyle { }
}
}
Any help is greatly appreciated.
--Narayanan K
How is it possible in QML to automatically stretch element so that all its childs fit in it? And how to specify spacing? For example, I would like to have a rectangle around a text. The rectangle should have some internal spacing.
If I write the following then the rectangle has a size of 0,0.
Rectangle {
color: "gray"
anchors.centerIn: parent;
Text {
text: "Hello"
}
}
If I try to fix it by using the Column element, as suggested in How to make QML items to grow to fit contents?, then I get a column through the whole window/parent,
Column {
anchors.centerIn: parent
Rectangle {
color: "gray"
anchors.fill: parent
}
Text {
anchors.centerIn: parent
text: "Hello"
}
}
Edit:
I have also tried to use the Flow element instead of Column, but then I got a row through the whole window/parent.
You can use the childrenRect property for this:
import QtQuick 2.0
Rectangle {
width: 320
height: 200
Rectangle {
color: "BurlyWood"
anchors.centerIn: parent
width: childrenRect.width + 20
height: childrenRect.height + 20
Text {
id: hello
x: 10
y: 10
text: "Hello"
}
Text {
anchors.left: hello.right
anchors.leftMargin: 10
anchors.top: hello.top
text: "World"
}
}
}
However, note that using childrenRect in combination with using anchors.centerIn: parent in one of the direct children yields a warning about a binding loop.
Setting the width and height manually works, but is a little ugly:
Rectangle {
color: "gray"
width: label.width+20
height: label.height+20
anchors.centerIn: parent
Text {
id: label
anchors.centerIn: parent
text: "Hello"
}
}
I don't think using chilrenRect property is sufficient (as suggested by Thorbjørn Lindeijer). It doesn't automatically take into account all various margins of the child(ren) element(s). If the latter changes, the root rectangle doesn't automatically adjust its size. I personally came with the following solution:
Rectangle {
color: "white"
implicitWidth: row.implicitWidth + extraLeft + extraRight
implicitHeight: row.implicitHeight + extraTop + extraBottom
property int extraMargin: row.anchors.margins ? row.anchors.margins : 0
property int extraTop: row.anchors.topMargin ? row.anchors.topMargin : extraMargin
property int extraBottom: row.anchors.bottomMargin ? row.anchors.bottomMargin : extraMargin
property int extraLeft: row.anchors.leftMargin ? row.anchors.leftMargin : extraMargin
property int extraRight: row.anchors.rightMargin ? row.anchors.rightMargin : extraMargin
RowLayout {
id: row
spacing: 50
anchors.fill:parent
anchors.margins: 50
anchors.leftMargin: 100
Label {
text: "hello"
}
Label {
text: "world"
}
}
}