QDialogButtonBox¶
The
QDialogButtonBox
class is a widget that presents buttons in a layout that is appropriate to the current widget style. More…
Synopsis¶
Functions¶
def
addButton
(button)def
addButton
(button, role)def
addButton
(text, role)def
button
(which)def
buttonRole
(button)def
buttons
()def
centerButtons
()def
clear
()def
orientation
()def
removeButton
(button)def
setCenterButtons
(center)def
setOrientation
(orientation)def
setStandardButtons
(buttons)def
standardButton
(button)def
standardButtons
()
Signals¶
def
accepted
()def
clicked
(button)def
helpRequested
()def
rejected
()
Detailed Description¶
Dialogs and message boxes typically present buttons in a layout that conforms to the interface guidelines for that platform. Invariably, different platforms have different layouts for their dialogs.
QDialogButtonBox
allows a developer to add buttons to it and will automatically use the appropriate layout for the user’s desktop environment.Most buttons for a dialog follow certain roles. Such roles include:
Accepting or rejecting the dialog.
Asking for help.
Performing actions on the dialog itself (such as resetting fields or applying changes).
There can also be alternate ways of dismissing the dialog which may cause destructive results.
Most dialogs have buttons that can almost be considered standard (e.g. OK and Cancel buttons). It is sometimes convenient to create these buttons in a standard way.
There are a couple ways of using
QDialogButtonBox
. One ways is to create the buttons (or button texts) yourself and add them to the button box, specifying their role.findButton = QPushButton(self.tr("&Find")) findButton.setDefault(True) moreButton = QPushButton(self.tr("&More")) moreButton.setCheckable(True) moreButton.setAutoDefault(False) buttonBox = QDialogButtonBox(Qt.Vertical) buttonBox.addButton(findButton, QDialogButtonBox.ActionRole) buttonBox.addButton(moreButton, QDialogButtonBox.ActionRole)Alternatively,
QDialogButtonBox
provides several standard buttons (e.g. OK, Cancel, Save) that you can use. They exist as flags so you can OR them together in the constructor.self.buttonBox = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel) self.buttonBox.accepted.connect(self.accept) self.buttonBox.rejected.connect(self.reject)You can mix and match normal buttons and standard buttons.
Currently the buttons are laid out in the following way if the button box is horizontal:
Button box laid out in horizontal
GnomeLayout
Button box laid out in horizontal
KdeLayout
Button box laid out in horizontal
MacLayout
Button box laid out in horizontal
WinLayout
The buttons are laid out the following way if the button box is vertical:
GnomeLayout
KdeLayout
MacLayout
WinLayout
Additionally, button boxes that contain only buttons with
ActionRole
orHelpRole
can be considered modeless and have an alternate look on macOS :
modeless horizontal
MacLayout
modeless vertical
MacLayout
When a button is clicked in the button box, the
clicked()
signal is emitted for the actual button is that is pressed. For convenience, if the button has anAcceptRole
,RejectRole
, orHelpRole
, theaccepted()
,rejected()
, orhelpRequested()
signals are emitted respectively.If you want a specific button to be default you need to call
setDefault()
on it yourself. However, if there is no default button set and to preserve which button is the default button across platforms when using theautoDefault
property, the first push button with the accept role is made the default button when theQDialogButtonBox
is shown,See also
-
class
QDialogButtonBox
(buttons[, parent=None])¶ QDialogButtonBox(buttons, orientation[, parent=None])
QDialogButtonBox([parent=None])
QDialogButtonBox(orientation[, parent=None])
- param parent
- param buttons
StandardButtons
- param orientation
Orientation
Constructs a horizontal button box with the given
parent
, containing the standard buttons specified bybuttons
.See also
Constructs a button box with the given
orientation
andparent
, containing the standard buttons specified bybuttons
.See also
Constructs an empty, horizontal button box with the given
parent
.See also
Constructs an empty button box with the given
orientation
andparent
.See also
-
PySide2.QtWidgets.QDialogButtonBox.
ButtonRole
¶
-
PySide2.QtWidgets.QDialogButtonBox.
StandardButton
¶ These enums describe flags for standard buttons. Each button has a defined
ButtonRole
.Constant
Description
QDialogButtonBox.Ok
An “OK” button defined with the
AcceptRole
.QDialogButtonBox.Open
An “Open” button defined with the
AcceptRole
.QDialogButtonBox.Save
A “Save” button defined with the
AcceptRole
.QDialogButtonBox.Cancel
A “Cancel” button defined with the
RejectRole
.QDialogButtonBox.Close
A “Close” button defined with the
RejectRole
.QDialogButtonBox.Discard
A “Discard” or “Don’t Save” button, depending on the platform, defined with the
DestructiveRole
.QDialogButtonBox.Apply
An “Apply” button defined with the
ApplyRole
.QDialogButtonBox.Reset
A “Reset” button defined with the
ResetRole
.QDialogButtonBox.RestoreDefaults
A “Restore Defaults” button defined with the
ResetRole
.QDialogButtonBox.Help
A “Help” button defined with the
HelpRole
.QDialogButtonBox.SaveAll
A “Save All” button defined with the
AcceptRole
.QDialogButtonBox.Yes
A “Yes” button defined with the
YesRole
.QDialogButtonBox.YesToAll
A “Yes to All” button defined with the
YesRole
.QDialogButtonBox.No
A “No” button defined with the
NoRole
.QDialogButtonBox.NoToAll
A “No to All” button defined with the
NoRole
.QDialogButtonBox.Abort
An “Abort” button defined with the
RejectRole
.QDialogButtonBox.Retry
A “Retry” button defined with the
AcceptRole
.QDialogButtonBox.Ignore
An “Ignore” button defined with the
AcceptRole
.QDialogButtonBox.NoButton
An invalid button.
See also
ButtonRole
standardButtons
-
PySide2.QtWidgets.QDialogButtonBox.
ButtonLayout
¶ This enum describes the layout policy to be used when arranging the buttons contained in the button box.
Constant
Description
QDialogButtonBox.WinLayout
Use a policy appropriate for applications on Windows.
QDialogButtonBox.MacLayout
Use a policy appropriate for applications on macOS .
QDialogButtonBox.KdeLayout
Use a policy appropriate for applications on KDE.
QDialogButtonBox.GnomeLayout
Use a policy appropriate for applications on GNOME.
QDialogButtonBox.AndroidLayout
Use a policy appropriate for applications on Android. This enum value was added in Qt 5.10.
The button layout is specified by the
current style
. However, on the X11 platform, it may be influenced by the desktop environment.
-
PySide2.QtWidgets.QDialogButtonBox.
accepted
()¶
-
PySide2.QtWidgets.QDialogButtonBox.
addButton
(button, role)¶ - Parameters
button –
QAbstractButton
role –
ButtonRole
Adds the given
button
to the button box with the specifiedrole
. If the role is invalid, the button is not added.If the button has already been added, it is removed and added again with the new role.
Note
The button box takes ownership of the button.
See also
-
PySide2.QtWidgets.QDialogButtonBox.
addButton
(button) - Parameters
button –
StandardButton
- Return type
Adds a standard
button
to the button box if it is valid to do so, and returns a push button. Ifbutton
is invalid, it is not added to the button box, and zero is returned.See also
-
PySide2.QtWidgets.QDialogButtonBox.
addButton
(text, role) - Parameters
text – unicode
role –
ButtonRole
- Return type
- Parameters
which –
StandardButton
- Return type
Returns the
QPushButton
corresponding to the standard buttonwhich
, or 0 if the standard button doesn’t exist in this button box.See also
- Parameters
button –
QAbstractButton
- Return type
Returns the button role for the specified
button
. This function returnsInvalidRole
ifbutton
is 0 or has not been added to the button box.See also
- Return type
Returns a list of all the buttons that have been added to the button box.
See also
-
PySide2.QtWidgets.QDialogButtonBox.
centerButtons
()¶ - Return type
bool
See also
-
PySide2.QtWidgets.QDialogButtonBox.
clear
()¶ Clears the button box, deleting all buttons within it.
See also
-
PySide2.QtWidgets.QDialogButtonBox.
clicked
(button)¶ - Parameters
button –
QAbstractButton
-
PySide2.QtWidgets.QDialogButtonBox.
helpRequested
()¶
-
PySide2.QtWidgets.QDialogButtonBox.
orientation
()¶ - Return type
Orientation
See also
-
PySide2.QtWidgets.QDialogButtonBox.
rejected
()¶
-
PySide2.QtWidgets.QDialogButtonBox.
removeButton
(button)¶ - Parameters
button –
QAbstractButton
Removes
button
from the button box without deleting it and sets its parent to zero.See also
-
PySide2.QtWidgets.QDialogButtonBox.
setCenterButtons
(center)¶ - Parameters
center –
bool
See also
-
PySide2.QtWidgets.QDialogButtonBox.
setOrientation
(orientation)¶ - Parameters
orientation –
Orientation
See also
-
PySide2.QtWidgets.QDialogButtonBox.
setStandardButtons
(buttons)¶ - Parameters
buttons –
StandardButtons
See also
-
PySide2.QtWidgets.QDialogButtonBox.
standardButton
(button)¶ - Parameters
button –
QAbstractButton
- Return type
Returns the standard button enum value corresponding to the given
button
, orNoButton
if the givenbutton
isn’t a standard button.See also
-
PySide2.QtWidgets.QDialogButtonBox.
standardButtons
()¶ - Return type
StandardButtons
See also
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