内容

• 特性
• 信号
• 方法
• 详细描述

MenuItem QML Type

A native menu item. 更多...

导入语句：	import Qt.labs.platform 1.0
Since:	Qt 5.8
继承：	QtObject
继承者：	MenuSeparator

• 所有成员列表，包括继承成员

特性

• checkable : bool
• checked : bool
• enabled : bool
• font : font
• group : MenuItemGroup
• iconName : string
• iconSource : url
• menu : Menu
• role : enumeration
• separator : bool
• shortcut : keysequence
• subMenu : Menu
• text : string
• visible : bool

信号

• void hovered ()
• void triggered ()

方法

• void toggle ()

详细描述

MenuItem type provides a QML API for native platform menu items.

A menu item consists of an icon , text ，和 shortcut .

Menu {
    id: zoomMenu
    MenuItem {
        text: qsTr("Zoom In")
        shortcut: StandardKey.ZoomIn
        onTriggered: zoomIn()
    }
    MenuItem {
        text: qsTr("Zoom Out")
        shortcut: StandardKey.ZoomOut
        onTriggered: zoomOut()
    }
}
					

注意： Types in Qt.labs modules are not guaranteed to remain compatible in future versions.

另请参阅 Menu and MenuItemGroup .

特性文档编制

checkable : bool

This property holds whether the item is checkable.

A checkable menu item has an on/off state. For example, in a word processor, a "Bold" menu item may be either on or off. A menu item that is not checkable is a command item that is simply executed, e.g. file save.

默认值为 false .

另请参阅 checked and MenuItemGroup .

checked : bool

This property holds whether the item is checked (on) or unchecked (off). The default value is false .

另请参阅 checkable and MenuItemGroup .

enabled : bool

This property holds whether the item is enabled. The default value is true .

Disabled items cannot be triggered by the user. They do not disappear from menus, but they are displayed in a way which indicates that they are unavailable. For example, they might be displayed using only shades of gray.

When an item is disabled, it is not possible to trigger it through its shortcut .

font : font

This property holds the menu item's font.

另请参阅 text .

group : MenuItemGroup

This property holds the group that the item belongs to, or null if the item is not in a group.

iconName : string

This property holds the theme name of the menu item's icon.

MenuItem {
    iconName: "edit-undo"
    iconSource: "qrc:/images/undo.png"
}
					

另请参阅 iconSource and QIcon::fromTheme() .

iconSource : url

This property holds the url of the menu item's icon.

MenuItem {
    iconName: "edit-undo"
    iconSource: "qrc:/images/undo.png"
}
					

另请参阅 iconName .

[read-only] menu : Menu

This property holds the menu that the item belongs to, or null if the item is not in a menu.

role : enumeration

This property holds the role of the item. The role determines whether the item should be placed into the application menu on macOS.

Available values:

常量	描述
MenuItem.NoRole	The item should not be put into the application menu
MenuItem.TextHeuristicRole	The item should be put in the application menu based on the action's text (default)
MenuItem.ApplicationSpecificRole	The item should be put in the application menu with an application-specific role
MenuItem.AboutQtRole	The item handles the "About Qt" menu item.
MenuItem.AboutRole	The item should be placed where the "About" menu item is in the application menu. The text of the menu item will be set to "About <application name>". The application name is fetched from the Info.plist file in the application's bundle (See Qt for macOS - 部署 ).
MenuItem.PreferencesRole	The item should be placed where the "Preferences..." menu item is in the application menu.
MenuItem.QuitRole	The item should be placed where the Quit menu item is in the application menu.

Specifying the role only has effect on items that are in the immediate menus of a menubar, not in the submenus of those menus. For example, if you have a "File" menu in your menubar and the "File" menu has a submenu, specifying a role for the items in that submenu has no effect. They will never be moved to the application menu.

separator : bool

This property holds whether the item is a separator line. The default value is false .

另请参阅 MenuSeparator .

shortcut : keysequence

This property holds the menu item's shortcut.

The shortcut key sequence can be set to one of the 标准键盘快捷键 , or it can be specified by a string containing a sequence of up to four key presses that are needed to trigger the shortcut.

The default value is an empty key sequence.

MenuItem {
    shortcut: "Ctrl+E,Ctrl+W"
    onTriggered: edit.wrapMode = TextEdit.Wrap
}
					

[read-only] subMenu : Menu

This property holds the sub-menu that the item contains, or null if the item is not a sub-menu item.

text : string

This property holds the menu item's text.

visible : bool

This property holds whether the item is visible. The default value is true .

信号文档编制

void hovered ()

This signal is emitted when the menu item is hovered by the user.

void triggered ()

This signal is emitted when the menu item is triggered by the user.

方法文档编制

void toggle ()

Toggles the checked state to its opposite state.