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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.gui.QWidget
com.trolltech.qt.gui.QAbstractButton
com.trolltech.qt.gui.QToolButton
public class QToolButton
The QToolButton class provides a quick-access button to commands or options, usually used inside a 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 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 QToolButton as a toggle button (see setToggleButton()).
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 QToolBar
. Change it with setAutoRaise()
.
A tool button's icon is set as 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 setToolButtonStyle()
and setIconSize(). When used inside a QToolBar
in a QMainWindow
, the button automatically adjusts to QMainWindow
's settings (see QMainWindow::setToolButtonStyle()
and QMainWindow::setIconSize()
). Instead of an icon, a tool button can also display an arrow symbol, specified with arrowType
.
A tool button can offer additional choices in a popup menu. The popup menu can be set using setMenu()
. Use 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. |
QPushButton
, QToolBar
, QMainWindow
, QAction
, and GUI Design Handbook: Push Button.
Nested Class Summary | |
---|---|
static class |
QToolButton.ToolButtonPopupMode
Describes how a menu should be popped up for tool buttons that has a menu set or contains a list of actions. |
Nested classes/interfaces inherited from class com.trolltech.qt.gui.QWidget |
---|
QWidget.RenderFlag, QWidget.RenderFlags |
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal |
Field Summary | |
---|---|
QSignalEmitter.Signal1 |
triggered
This signal takes 1 generic argument(s). |
Fields inherited from class com.trolltech.qt.gui.QAbstractButton |
---|
clicked, pressed, released, toggled |
Fields inherited from class com.trolltech.qt.gui.QWidget |
---|
customContextMenuRequested |
Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
currentSender |
Constructor Summary | |
---|---|
QToolButton()
Constructs an empty tool button with parent parent. |
|
QToolButton(QWidget parent)
Constructs an empty tool button with parent parent. |
Method Summary | |
---|---|
Qt.ArrowType |
arrowType()
This property holds whether the button displays an arrow instead of a normal icon. |
boolean |
autoRaise()
This property holds whether auto-raising is enabled or not. |
QAction |
defaultAction()
Returns the default action. |
protected void |
initStyleOption(QStyleOptionToolButton option)
Initialize option with the values from this QToolButton. |
QMenu |
menu()
Returns the associated menu, or 0 if no menu has been defined. |
QToolButton.ToolButtonPopupMode |
popupMode()
This property describes the way that popup menus are used with tool buttons. |
void |
setArrowType(Qt.ArrowType type)
This property holds whether the button displays an arrow instead of a normal icon. |
void |
setAutoRaise(boolean enable)
This property holds whether auto-raising is enabled or not. |
void |
setDefaultAction(QAction arg__1)
Sets the default action to action. |
void |
setMenu(QMenu menu)
Associates the given menu with this tool button. |
void |
setPopupMode(QToolButton.ToolButtonPopupMode mode)
This property describes the way that popup menus are used with tool buttons. |
void |
setToolButtonStyle(Qt.ToolButtonStyle style)
This property holds whether the tool button displays an icon only, text only, or text beside/below the icon. |
void |
showMenu()
Shows (pops up) the associated popup menu. |
Qt.ToolButtonStyle |
toolButtonStyle()
This property holds whether the tool button displays an icon only, text only, or text beside/below the icon. |
Methods inherited from class com.trolltech.qt.gui.QAbstractButton |
---|
animateClick, animateClick, autoExclusive, autoRepeat, autoRepeatDelay, autoRepeatInterval, checkStateSet, click, group, hitButton, icon, iconSize, isCheckable, isChecked, isDown, nextCheckState, setAutoExclusive, setAutoRepeat, setAutoRepeatDelay, setAutoRepeatInterval, setCheckable, setChecked, setDown, setIcon, setIconSize, setShortcut, setShortcut, setShortcut, setText, shortcut, text, toggle |
Methods inherited from class com.trolltech.qt.core.QObject |
---|
childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty |
Methods inherited from class com.trolltech.qt.QtJambiObject |
---|
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
---|
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread |
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
__qt_signalInitialization |
Methods inherited from class java.lang.Object |
---|
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
---|
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Field Detail |
---|
public final QSignalEmitter.Signal1 triggered
This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.gui.QAction(named: action)>:
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.
Constructor Detail |
---|
public QToolButton()
public QToolButton(QWidget parent)
Method Detail |
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public final Qt.ArrowType arrowType()
By default, this property is set to Qt::NoArrow
.
public final boolean autoRaise()
This property is currently ignored on Mac OS X when using QMacStyle.
public final QAction defaultAction()
setDefaultAction()
.
public final QMenu menu()
setMenu()
.
public final QToolButton.ToolButtonPopupMode popupMode()
DelayedPopup
.
public final void setArrowType(Qt.ArrowType type)
By default, this property is set to Qt::NoArrow
.
public final void setAutoRaise(boolean enable)
This property is currently ignored on Mac OS X when using QMacStyle.
public final void setDefaultAction(QAction arg__1)
If a tool button has a default action, the action defines the button's properties like text, icon, tool tip, etc.
defaultAction()
.
public final void setMenu(QMenu menu)
The menu will be shown according to the button's popupMode
.
Ownership of the menu is not transferred to the tool button.
menu()
.
public final void setPopupMode(QToolButton.ToolButtonPopupMode mode)
DelayedPopup
.
public final void setToolButtonStyle(Qt.ToolButtonStyle style)
Qt::ToolButtonIconOnly
. QToolButton automatically connects this slot to the relevant signal in the QMainWindow
in which is resides.
public final void showMenu()
public final Qt.ToolButtonStyle toolButtonStyle()
Qt::ToolButtonIconOnly
. QToolButton automatically connects this slot to the relevant signal in the QMainWindow
in which is resides.
protected final void initStyleOption(QStyleOptionToolButton option)
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