QToolButton Class Reference
|
Qt Assistant's toolbar contains tool buttons that are associated with actions used in other parts of the main window. |
See also QPushButton, QToolBar, QMainWindow, QAction, and GUI Design Handbook: Push Button.
Describes how a menu should be popped up for tool buttons that has a menu set or contains a list of actions.
Constant | Value | Description |
---|---|---|
QToolButton::DelayedPopup | 0 | After pressing and holding the tool button down for a certain amount of time (the timeout is style dependant, see QStyle::SH_ToolButton_PopupDelay), the menu is displayed. A typical application example is the "back" button in some web browsers's tool bars. If the user clicks it, the browser simply browses back to the previous page. If the user presses and holds the button down for a while, the tool button shows a menu containing the current history list |
QToolButton::MenuButtonPopup | 1 | In this mode the tool button displays a special arrow to indicate that a menu is present. The menu is displayed when the arrow part of the button is pressed. |
QToolButton::InstantPopup | 2 | The menu is displayed, without delay, when the tool button is pressed. In this mode, the button's own action is not triggered. |
This property holds whether the button displays an arrow instead of a normal icon.
This displays an arrow as the icon for the QToolButton.
By default, this property is set to Qt::NoArrow.
Access functions:
This property holds whether auto-raising is enabled or not.
The default is disabled (i.e. false).
This property is currently ignored on Mac OS X when using QMacStyle.
Access functions:
This property describes the way that popup menus are used with tool buttons.
By default, this property is set to DelayedPopup.
Access functions:
This property holds whether the tool button displays an icon only, text only, or text beside/below the icon.
The default is Qt::ToolButtonIconOnly.
QToolButton automatically connects this slot to the relevant signal in the QMainWindow in which is resides.
Access functions:
Constructs an empty tool button with parent parent.
Destroys the object and frees any allocated resources.
Returns the default action.
See also setDefaultAction().
Initialize option with the values from this QToolButton. This method is useful for subclasses when they need a QStyleOptionToolButton, but don't want to fill in all the information themselves.
See also QStyleOption::initFrom().
Returns the associated menu, or 0 if no menu has been defined.
See also setMenu().
Paints the button in response to the paint event.
Reimplemented from QWidget.
Sets the default action to action.
If a tool button has a default action, the action defines the button's properties like text, icon, tool tip, etc.
See also defaultAction().
Associates the given menu with this tool button.
The menu will be shown according to the button's popupMode.
Ownership of the menu is not transferred to the tool button.
See also menu().
Shows (pops up) the associated popup menu. If there is no such menu, this function does nothing. This function does not return until the popup menu has been closed by the user.
This signal is emitted when the given action is triggered.
The action may also be associated with other parts of the user interface, such as menu items and keyboard shortcuts. Sharing actions in this way helps make the user interface more consistent and is often less work to implement.
Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies) | Trademarks | Qt 4.5.2 |
Попытка перевода Qt документации. Если есть желание присоединиться, или если есть замечания или пожелания, то заходите на форум: Перевод Qt документации на русский язык... Люди внесшие вклад в перевод: Команда переводчиков |