PySide.QtGui.QToolButton class provides a quick-access button to commands or options, usually used inside a PySide.QtGui.QToolBar .
A tool button is a special button that provides quick-access to specific commands or options. As opposed to a normal command button, a tool button usually doesn't show a text label, but shows an icon instead.
Tool buttons are normally created when new PySide.QtGui.QAction instances are created with QToolBar.addAction() or existing actions are added to a toolbar with QToolBar.addAction() . It is also possible to construct tool buttons in the same way as any other widget, and arrange them alongside other widgets in layouts.
One classic use of a tool button is to select tools; for example, the “pen” tool in a drawing program. This would be implemented by using a PySide.QtGui.QToolButton as a toggle button (see setToggleButton() ).
PySide.QtGui.QToolButton supports auto-raising. In auto-raise mode, the button draws a 3D frame only when the mouse points at it. The feature is automatically turned on when a button is used inside a PySide.QtGui.QToolBar . Change it with PySide.QtGui.QToolButton.setAutoRaise() .
A tool button's icon is set as PySide.QtGui.QIcon . This makes it possible to specify different pixmaps for the disabled and active state. The disabled pixmap is used when the button's functionality is not available. The active pixmap is displayed when the button is auto-raised because the mouse pointer is hovering over it.
The button's look and dimension is adjustable with PySide.QtGui.QToolButton.setToolButtonStyle() and PySide.QtGui.QAbstractButton.setIconSize() . When used inside a PySide.QtGui.QToolBar 在 PySide.QtGui.QMainWindow , the button automatically adjusts to PySide.QtGui.QMainWindow ‘s settings (see QMainWindow.setToolButtonStyle() and QMainWindow.setIconSize() ). Instead of an icon, a tool button can also display an arrow symbol, specified with PySide.QtGui.QToolButton.arrowType() .
A tool button can offer additional choices in a popup menu. The popup menu can be set using PySide.QtGui.QToolButton.setMenu() 。使用 PySide.QtGui.QToolButton.setPopupMode() to configure the different modes available for tool buttons with a menu set. The default mode is DelayedPopupMode which is sometimes used with the “Back” button in a web browser. After pressing and holding the button down for a while, a menu pops up showing a list of possible pages to jump to. The default delay is 600 ms; you can adjust it with setPopupDelay() .
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| Qt Assistant's toolbar contains tool buttons that are associated with actions used in other parts of the main window. |
| 参数： | parent – PySide.QtGui.QWidget |
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Constructs an empty tool button with parent parent .
Describes how a menu should be popped up for tool buttons that has a menu set or contains a list of actions.
| 常量 | 描述 |
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| QToolButton.DelayedPopup | 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 | 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 | The menu is displayed, without delay, when the tool button is pressed. In this mode, the button's own action is not triggered. |
| 返回类型： | PySide.QtCore.Qt.ArrowType |
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This property holds whether the button displays an arrow instead of a normal icon.
This displays an arrow as the icon for the PySide.QtGui.QToolButton .
默认情况下，此特性被设为 Qt.NoArrow .
| 返回类型： | PySide.QtCore.bool |
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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 PySide.QtGui.QMacStyle .
| 返回类型： | PySide.QtGui.QAction |
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Returns the default action.
| 参数： | option – PySide.QtGui.QStyleOptionToolButton |
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初始化 option 采用值来自此 PySide.QtGui.QToolButton 。此方法对子类是有用的，当需要 PySide.QtGui.QStyleOptionToolButton ，但不希望自己填充所有信息。
| 返回类型： | PySide.QtGui.QMenu |
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Returns the associated menu, or 0 if no menu has been defined.
| 返回类型： | PySide.QtGui.QToolButton.ToolButtonPopupMode |
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This property describes the way that popup menus are used with tool buttons.
默认情况下，此特性被设为 DelayedPopup .
| 参数： | type – PySide.QtCore.Qt.ArrowType |
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This property holds whether the button displays an arrow instead of a normal icon.
This displays an arrow as the icon for the PySide.QtGui.QToolButton .
默认情况下，此特性被设为 Qt.NoArrow .
| 参数： | enable – PySide.QtCore.bool |
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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 PySide.QtGui.QMacStyle .
| 参数： | arg__1 – PySide.QtGui.QAction |
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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.
| 参数： | menu – PySide.QtGui.QMenu |
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Associates the given menu with this tool button.
The menu will be shown according to the button's PySide.QtGui.QToolButton.popupMode() .
Ownership of the menu is not transferred to the tool button.
| 参数： | mode – PySide.QtGui.QToolButton.ToolButtonPopupMode |
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This property describes the way that popup menus are used with tool buttons.
默认情况下，此特性被设为 DelayedPopup .
| 参数： | style – PySide.QtCore.Qt.ToolButtonStyle |
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This property holds whether the tool button displays an icon only, text only, or text beside/below the icon..
默认为 Qt.ToolButtonIconOnly .
To have the style of toolbuttons follow the system settings (as available in GNOME and KDE desktop environments), set this property to Qt.ToolButtonFollowStyle .
PySide.QtGui.QToolButton automatically connects this slot to the relevant signal in the PySide.QtGui.QMainWindow in which is resides.
展示 (弹出) 关联的弹出菜单。若没有这样的菜单，此函数什么都不做。此函数直到用户关闭弹出菜单后才返回。
| 返回类型： | PySide.QtCore.Qt.ToolButtonStyle |
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This property holds whether the tool button displays an icon only, text only, or text beside/below the icon..
默认为 Qt.ToolButtonIconOnly .
To have the style of toolbuttons follow the system settings (as available in GNOME and KDE desktop environments), set this property to Qt.ToolButtonFollowStyle .
PySide.QtGui.QToolButton automatically connects this slot to the relevant signal in the PySide.QtGui.QMainWindow in which is resides.
| 参数： | arg__1 – PySide.QtGui.QAction |
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