GridLayout QML Type

Provides a way of dynamically arranging items in a grid. 更多...

import 语句：	import QtQuick.Layouts 1.2
继承：	Item

所有成员列表，包括继承成员

特性

columnSpacing : real
columns : int
flow : enumeration
layoutDirection : enumeration
rowSpacing : real
rows : int

详细描述

To be able to use this type more efficiently, it is recommended that you understand the general mechanism of the Qt Quick Layouts module. Refer to Qt Quick Layouts 概述了解更多信息。

If the GridLayout is resized, all items in the layout will be rearranged. It is similar to the widget-based QGridLayout . All visible children of the GridLayout element will belong to the layout. If you want a layout with just one row or one column, you can use the RowLayout or ColumnLayout . These offer a bit more convenient API, and improve readability.

By default items will be arranged according to the flow property. The default value of the flow 特性为 GridLayout.LeftToRight .

若 columns property is specified, it will be treated as a maximum limit of how many columns the layout can have, before the auto-positioning wraps back to the beginning of the next row. The columns property is only used when flow is GridLayout.LeftToRight .

GridLayout {
    id: grid
    columns: 3
    Text { text: "Three"; font.bold: true; }
    Text { text: "words"; color: "red" }
    Text { text: "in"; font.underline: true }
    Text { text: "a"; font.pixelSize: 20 }
    Text { text: "row"; font.strikeout: true }
}

rows property works in a similar way, but items are auto-positioned vertically. The rows property is only used when flow is GridLayout.TopToBottom .

You can specify which cell you want an item to occupy by setting the Layout.row and Layout.column properties. You can also specify the row span or column span by setting the Layout.rowSpan or Layout.columnSpan 特性。

Items in a GridLayout support these attached properties:

Read more about attached properties here .

另请参阅 RowLayout , ColumnLayout , StackLayout , Grid ，和 Qt Quick Layouts 概述 .

特性文档编制

columnSpacing : real

This property holds the spacing between each column. The default value is 5 .

columns : int

This property holds the column limit for items positioned if flow is GridLayout.LeftToRight . The default value is that there is no limit.

flow : enumeration

This property holds the flow direction of items that does not have an explicit cell position set. It is used together with the columns or rows property, where they specify when flow is reset to the next row or column respectively.

Possible values are:

GridLayout .LeftToRight (default) - Items are positioned next to each other, then wrapped to the next line.
GridLayout .TopToBottom - Items are positioned next to each other from top to bottom, then wrapped to the next column.

另请参阅 rows and columns .

[since QtQuick.Layouts 1.1] layoutDirection : enumeration

This property holds the layout direction of the grid layout - it controls whether items are laid out from left to right or right to left. If Qt.RightToLeft is specified, left-aligned items will be right-aligned and right-aligned items will be left-aligned.

可能的值：

Qt.LeftToRight (default) - Items are laid out from left to right.
Qt.RightToLeft - Items are laid out from right to left.

This property was introduced in QtQuick.Layouts 1.1.

另请参阅 RowLayout::layoutDirection and ColumnLayout::layoutDirection .

rowSpacing : real

This property holds the spacing between each row. The default value is 5 .

rows : int

This property holds the row limit for items positioned if flow is GridLayout.TopToBottom . The default value is that there is no limit.