qt QML tabviewstyle tab rectangle add x - qt

I need to move the tab buttons in tabview to shift or padding right. When I add x position to the tabviewstyle rectangle, it moves to the right but the end tabs are getting cut off. How could I move the tabs without the cut off, Any idea how to fix this?
TabView {
id: frame
//anchors.fill: parent
y: 250
width: 400
anchors.margins: 4
Tab { title: "Tab 1" }
Tab { title: "Tab 2" }
Tab { title: "Tab 3" }
style: TabViewStyle {
frameOverlap: 1
tab: Rectangle {
x: 50
color: styleData.selected ? "steelblue" :"lightsteelblue"
border.color: "steelblue"
implicitWidth: Math.max(text.width + 4, 100)
implicitHeight: 20
radius: 2
Text {
id: text
anchors.centerIn: parent
text: styleData.title
color: styleData.selected ? "white" : "black"
}
}
frame: Rectangle { color: "steelblue" }
}
}

It's not completely clear from your description, but if you just want the buttons in the tab bar aligned right, this should do the trick for you:
https://doc.qt.io/qt-5/qml-qtquick-controls-styles-tabviewstyle.html#tabsAlignment-prop
TabViewStyle {
tabsAlignment: Qt.AlignRight
[...]
}
If that's not what you are looking for, can you clarify the question a little more?
EDIT: based on OP's comment below, here's another approach.
Source code for the TabView component is here: https://github.com/qt/qtquickcontrols/blob/dev/src/controls/TabView.qml
You can see it uses a private TabBar component to place the tab buttons at the top of the Tabs stack and supports left, center and right alignment for them.
Perhaps you can achieve the effect you want by setting the anchors.leftMargin on the TabBar? Without it being an aliased property, you'll need to loop on the TabView's children to find it by objectName and then set the anchor margin on it.

Related

QML: Autoresize the TextInput

Text type has this nice feature fontSizeMode, which tries to fit the font size to the actual size of the visual component. So that when I set the font size to 20 and I resize the window so this font size is too big, it automatically lowers the font size.
Text {
text: qsTr("Text")
font.pointSize: 20
fontSizeMode: Text.Fit
}
Now I wanted to use this functionality with the TextInput type, but there is no fontSizeMode available. So my question is, how can I achieve the same functionality with TextInput? Now, when the font size is set and I downsize the window, the string in the TextInput is cut in half like this:
You can scale the element down to constrain it to a specific width:
Rectangle {
width: 100
height: 50
color: "red"
TextInput {
anchors.centerIn: parent
font.pointSize: 20
text: "test"
scale: Math.min(1, parent.width / contentWidth)
Rectangle {
color: "white"
anchors.fill: parent
z: -1
}
}
}
I sticked with this solution. Bind the font.pixelSize property to the parent height. Although I'm not sure if it is 100% correct, it does exactly what I want. If there is some problem about it, please make me know.
Text {
text: qsTr("Text")
font.pixelSize: 0.1 * parent.height
}

Controlling size of QML components from within style property

I'd like to create my own styled RadioButton, but I'm having difficulty controlling the size of the components used in the RadioButtonStyle that I am using. I want to put my RadioButton in a GridLayout and have the RadioButton take up all the available space (as if I were setting Layout.fillWidth and Layout.fillHeight to true)
To start off with, I am using the RadioButtonStyle code from the Qt docs inside a GridLayout:
GridLayout {
columns: 3
anchors.fill: parent
RadioButton {
text: "Radio Button"
style: RadioButtonStyle {
indicator: Rectangle {
implicitWidth: 16
implicitHeight: 16
Rectangle {
anchors.fill: parent
visible: control.checked
color: "#555"
}
}
}
}
}
we can see that implicitWidth and implicitHeight of the indicator Rectangle are set int literals. I want to size the indicator Rectangle to fill the space provided by the layout.
I would like the width and height of the indicator Rectangle to track the width and height of the RadioButton, which in turn tracks the width and height of the GridLayout cell containing it.
== UPDATE ==
I have tried the following - setting Layout.maximumHeight/Width prevents Qml going into some kind of infinite loop
RadioButton {
id: rdbt
Layout.fillHeight: true
Layout.fillWidth: true
Layout.maximumWidth: 200
Layout.maximumHeight: 200
style: RadioButtonStyle {
id: ab
indicator: Rectangle {
color: "blue"
height: control.height
width: control.width //control.width

Building TabBar in QML - Loader doesn't show all the Rectangles

import QtQuick 2.4
import QtQuick.Window 2.2
Window
{
visible: true
height: 500
width: 500
property VisualItemModel contentToBeShownOnTabClick : visualItemModelDemo
property variant tabLabels : ["Navigation", "Payload", "System Control"]
VisualItemModel
{
id: visualItemModelDemo
Rectangle
{
id: navigationTab
color: "green"
height: 200
width: 200
}
Rectangle
{
id: navigationTab1
color: "darkgreen"
height: 200
width: 200
}
Rectangle
{
id: navigationTab2
color: "lightgreen"
height: 200
width: 200
}
}
MainForm
{
Component
{
id: tabsOnBottomComponent
Repeater
{
model: tabLabels
// The Tabs
Rectangle
{
id: tabsOnBottom
// This anchoring places the tabs on the outer top of the parent rectangle.
anchors.top: parent.bottom
anchors.topMargin: 180
color: "lightsteelblue"
border.color: "steelblue"
border.width: 2
implicitWidth: Math.max ((labelTabsBottom.width + 4), 80)
implicitHeight: 20
radius: 2
// Tabs Text/Label
Text
{
id: labelTabsBottom
anchors.centerIn: parent
color: "white"
rotation: 0
// With reference to mode: tabLabels
text: modelData
font.pointSize: 11
}
MouseArea
{
anchors.fill: parent
onClicked: bottomTabClicked (index);
}
}
}
}
Rectangle
{
// The things which get displayed on clicking of a tab will be shown in this rectangle.
id: areaForTabContents
border.color: "black"
border.width: 10
height: parent.height
width : parent.width
color : "pink"
// These are the tabs displayed in one row - horizontally.
Row
{
id: horizontalTabs
Loader
{
anchors.fill: parent
sourceComponent: tabsOnBottomComponent
}
}
}
anchors.fill: parent
}
}
This gets shown as follows:
whereas I want it to see 3 rectangles there side by side.
Loader is not a transparent type w.r.t. the containing type, Row in this case. I think this is an issue related to creation context and the way Repeater works. From the documentation of the latter:
Items instantiated by the Repeater are inserted, in order, as children of the Repeater's parent. The insertion starts immediately after the Repeater's position in its parent stacking list. This allows a Repeater to be used inside a layout.
The Rectangles are indeed added to the parent which is the Loader, they stack up - Loader does not provide a positioning policy - then they are added to the Row resulting in just one Item (the last one) to be visible.
You can tackle the problem with few different approaches, depending on the properties you want to maintain or not. I would get rid of anchoring in the Component and move it to the containing Row. A too specific anchoring inside a Component could be a pain in the neck when it is instanced and used all over a (not so small) project.
As a first approach you can re-parent the Repeater to the Row, i.e. you can rewrite code as:
Row
{
id: horizontalTabs
Loader
{
sourceComponent: tabsOnBottomComponent
onLoaded: item.parent = horizontalTabs
}
}
However this would result in warnings due to the Component anchoring references not working as expected any more.
If you still want to maintain the anchoring, as defined in the Component, and off-load the creation, you can go for the dynamic way (if the semantics fits in your use case), i.e. you can use createObject. This way you totally avoid the Loader and the related issue. For instance, you can create the Repeater once the Row has completed its creation:
Row
{
id: horizontalTabs
Component.onCompleted: tabsOnBottomComponent.createObject(horizontalTabs)
}
Clearly, the creation code can be move anywhere else, depending on your needs.

QML MouseArea onEntered hoverEnabled does not work

a pretty simple scenario, actually:
Text {
text: "Hover me!"
font.family: "Arial"
font.pointSize: 16
MouseArea {
anchors.fill: parent
hoverEnabled: true
onEntered: {
parent.color = "#ffffff"
}
onExited: {
parent.color = "#000000"
}
}
}
As you can see, all i want is that the text color changes when i hover it. However, it works only when i'm holding down my left mouse button. Since i'm pretty new to Qt, i've no idea where the problem could be. I googled all day to find an answer, but everything leads me to the "set hoverEnabled: true" solution, which i'm already using.
I'm working on windows with Qt 2.4.1 including VPlay (doesn't think that VPlay matters here)
From your snippet, it looks like you're not assigning the Text element a size (either explicitly or via anchoring), so it has a width/height of (0,0), which means it will never contain the mouse cursor. Note that in QtQuick, the size of items is not defined by their contents or where they paint (an item can paint anywhere outside of its (position, size) rectangle). An item without explicit width/height attributes or anchoring will have a size of (0,0), no matter how it appears on screen.
In the following example, the mouse area has a size of 360, 360 inherited from its parent rectangle (via anchors.fill: parent):
import QtQuick 2.0
Rectangle {
width: 360
height: 360
color: "black"
Text {
anchors.centerIn: parent
text: qsTr("Hello World")
color: mouseArea.containsMouse ? "red" : "white"
}
MouseArea {
id: mouseArea
anchors.fill: parent
hoverEnabled: true
}
}
}
I preferred the declarative approach using a property binding with containsMouse here, but onEntered/onExited would work as well.

Using leftCorner/rightCorner in TabViewStyle in QML

I am using Qt 5.1 – QML desktop components. For TabView, I want to have my tabs aligned right but the tabbar should start after a button at top-right corner. I am able to align tabs right using:
tabsAlignment: Qt.AlignRight
However, I am not able to place a button at right corner. Tried this but didn’t work.:
padding.right: 60
I saw that in TabViewStyle, we have rightCorner which is set to null. I tried to put in it rectangle or my own custiom button but it didn’t appear:
rightCorner:
Rectangle{
width: 60
height: 60
color: "red"
}
Please help on using rightCorner or solving this problem. Thanks!
After reading through the source code of QtQuick controls, it seems like the corners need to have an implicitWidth as well as an implicitHeight. It does not work with components that only have width and height.
TabView {
anchors.fill: parent
style: TabViewStyle {
rightCorner: Rectangle {
color: "red"
implicitWidth: 20
implicitHeight: 20
}
}
Tab { title: "Tabby" }
Tab { title: "Tabby" }
Tab { title: "Tabby" }
}
I'm having the same problem. All I noticed is that not all components work. A Text{} or an Item{} component work fine, but as you mentioned, a Rectangle{} component can't be added outright, you'd have to wrap it in an Item, like so:
rightCorner: Item{
Rectangle{
width: 60
height: 60
color: "red"
}
}

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