如何将具有自定义 属性 的组件移动到 QML 中的单独文件
How to move a component with a custom property to a separate file in QML
我有一个语言选择列表的代表。列表中的每个项目都包含一个图标和文本。
我想将组件定义移动到不同的文件并提供当前由 IMGDIR 定义的字符串作为 属性。
只需将下面的整个文本移动到单独的 LandDelegate.qml 文件并将其包含为:
LangDelegate { id: langDlg }
无效。
下面是组件的声明。
Component {
id: langDlg
Item {
id: wrapper
width: langView.width
height: langImg.height+10*2
Rectangle {
id: background
x: 2; y: 2; width: parent.width - x*2; height: parent.height - y*2
color: "lightgrey"
border.color: "orange"
radius: 5
}
states: State {
name: "Current"
when: wrapper.ListView.isCurrentItem
PropertyChanges { target: wrapper; x: 20 }
}
transitions: Transition {
NumberAnimation { properties: "x"; duration: 200 }
}
MouseArea {
anchors.fill: parent
hoverEnabled: true
onEntered: { wrapper.ListView.view.currentIndex = index; }
onClicked: { wrapper.ListView.view.currentIndex = index; langSelect.visible = false; docView.visible = true }
}
Row {
id: topLayout
x: 10; y: 10; height: langImg.height + 10*2; width: parent.width
spacing: 10
Image {
id: langImg
//width: 50; height: 50
source: IMGDIR+licon
}
Column {
width: background.width - langImg.width - 20; height: langImg.height
spacing: 5
Text {
text: lname
font.bold: true; font.pointSize: 16
}
}
}
}
}
据我所知和 according 文档,
The Component type essentially allows QML components to be defined
inline, within a QML document, rather than as a separate QML file.
Here我们有更多关于这个问题的信息,
A component is an instantiable QML definition, typically contained in
a .qml file. For instance, a Button component may be defined in
Button.qml.
因此,在您的情况下,您的 LangDelegate.qml
文件不需要根 Component
元素。使用 Item
而不是 Component
.
示例:
LangDelegate.qml
import QtQuick 2.0
Item {
id: langDlg
width: 100
height: 100
Rectangle {
id: background
x: 2; y: 2; width: parent.width - x*2; height: parent.height - y*2
color: "lightgrey"
border.color: "orange"
radius: 5
}
}
main.qml
import QtQuick 2.5
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
LangDelegate { id: langDlg }
}
我有一个语言选择列表的代表。列表中的每个项目都包含一个图标和文本。 我想将组件定义移动到不同的文件并提供当前由 IMGDIR 定义的字符串作为 属性。
只需将下面的整个文本移动到单独的 LandDelegate.qml 文件并将其包含为:
LangDelegate { id: langDlg }
无效。
下面是组件的声明。
Component {
id: langDlg
Item {
id: wrapper
width: langView.width
height: langImg.height+10*2
Rectangle {
id: background
x: 2; y: 2; width: parent.width - x*2; height: parent.height - y*2
color: "lightgrey"
border.color: "orange"
radius: 5
}
states: State {
name: "Current"
when: wrapper.ListView.isCurrentItem
PropertyChanges { target: wrapper; x: 20 }
}
transitions: Transition {
NumberAnimation { properties: "x"; duration: 200 }
}
MouseArea {
anchors.fill: parent
hoverEnabled: true
onEntered: { wrapper.ListView.view.currentIndex = index; }
onClicked: { wrapper.ListView.view.currentIndex = index; langSelect.visible = false; docView.visible = true }
}
Row {
id: topLayout
x: 10; y: 10; height: langImg.height + 10*2; width: parent.width
spacing: 10
Image {
id: langImg
//width: 50; height: 50
source: IMGDIR+licon
}
Column {
width: background.width - langImg.width - 20; height: langImg.height
spacing: 5
Text {
text: lname
font.bold: true; font.pointSize: 16
}
}
}
}
}
据我所知和 according 文档,
The Component type essentially allows QML components to be defined inline, within a QML document, rather than as a separate QML file.
Here我们有更多关于这个问题的信息,
A component is an instantiable QML definition, typically contained in a .qml file. For instance, a Button component may be defined in Button.qml.
因此,在您的情况下,您的 LangDelegate.qml
文件不需要根 Component
元素。使用 Item
而不是 Component
.
示例:
LangDelegate.qml
import QtQuick 2.0
Item {
id: langDlg
width: 100
height: 100
Rectangle {
id: background
x: 2; y: 2; width: parent.width - x*2; height: parent.height - y*2
color: "lightgrey"
border.color: "orange"
radius: 5
}
}
main.qml
import QtQuick 2.5
import QtQuick.Window 2.2
Window {
visible: true
width: 640
height: 480
title: qsTr("Hello World")
LangDelegate { id: langDlg }
}