QStyle

The QStyle class is an abstract base class that encapsulates the look and feel of a GUI. More

Inheritance diagram of PySide2.QtWidgets.QStyle

Inherited by: QCommonStyle, QProxyStyle

Synopsis

Functions

Virtual functions

Static functions

Detailed Description

Qt contains a set of QStyle subclasses that emulate the styles of the different platforms supported by Qt (QWindowsStyle, QMacStyle etc.). By default, these styles are built into the Qt GUI module. Styles can also be made available as plugins.

Qt’s built-in widgets use QStyle to perform nearly all of their drawing, ensuring that they look exactly like the equivalent native widgets. The diagram below shows a QComboBox in nine different styles.

../../_images/qstyle-comboboxes.png

Topics:

Setting a Style

The style of the entire application can be set using the setStyle() function. It can also be specified by the user of the application, using the -style command-line option:

python myapplication.py -style windows

If no style is specified, Qt will choose the most appropriate style for the user’s platform or desktop environment.

A style can also be set on an individual widget using the setStyle() function.

Developing Style-Aware Custom Widgets

If you are developing custom widgets and want them to look good on all platforms, you can use QStyle functions to perform parts of the widget drawing, such as drawItemText() , drawItemPixmap() , drawPrimitive() , drawControl() , and drawComplexControl() .

Most QStyle draw functions take four arguments:

  • an enum value specifying which graphical element to draw

  • a QStyleOption specifying how and where to render that element

  • a QPainter that should be used to draw the element

  • a QWidget on which the drawing is performed (optional)

For example, if you want to draw a focus rectangle on your widget, you can write:

def paintEvent(self, event):


    painter = QPainter(self)


    option = QStyleOptionFocusRect()
    option.initFrom(self)
    option.backgroundColor = palette().color(QPalette.Background)


    style().drawPrimitive(QStyle.PE_FrameFocusRect, option, painter, self)

QStyle gets all the information it needs to render the graphical element from QStyleOption . The widget is passed as the last argument in case the style needs it to perform special effects (such as animated default buttons on macOS ), but it isn’t mandatory. In fact, you can use QStyle to draw on any paint device, not just widgets, by setting the QPainter properly.

QStyleOption has various subclasses for the various types of graphical elements that can be drawn. For example, PE_FrameFocusRect expects a QStyleOptionFocusRect argument.

To ensure that drawing operations are as fast as possible, QStyleOption and its subclasses have public data members. See the QStyleOption class documentation for details on how to use it.

For convenience, Qt provides the QStylePainter class, which combines a QStyle , a QPainter , and a QWidget . This makes it possible to write

painter = QStylePainter(self)
...
painter.drawPrimitive(QStyle.PE_FrameFocusRect, option)

instead of

painter = QPainter(self)
...
style().drawPrimitive(QStyle.PE_FrameFocusRect, option, painter, self)

Creating a Custom Style

You can create a custom look and feel for your application by creating a custom style. There are two approaches to creating a custom style. In the static approach, you either choose an existing QStyle class, subclass it, and reimplement virtual functions to provide the custom behavior, or you create an entire QStyle class from scratch. In the dynamic approach, you modify the behavior of your system style at runtime. The static approach is described below. The dynamic approach is described in QProxyStyle .

The first step in the static approach is to pick one of the styles provided by Qt from which you will build your custom style. Your choice of QStyle class will depend on which style resembles your desired style the most. The most general class that you can use as a base is QCommonStyle (not QStyle ). This is because Qt requires its styles to be QCommonStyle s.

Depending on which parts of the base style you want to change, you must reimplement the functions that are used to draw those parts of the interface. To illustrate this, we will modify the look of the spin box arrows drawn by QWindowsStyle. The arrows are primitive elements that are drawn by the drawPrimitive() function, so we need to reimplement that function. We need the following class declaration:

class CustomStyle(QProxyStyle):
    ...

    def drawPrimitive(PrimitiveElement element, const QStyleOption *option,
                      QPainter *painter, const QWidget *widget) const;
        # element : PrimitiveElement
        # option  : QStyleOption
        # painter : QPainter
        # widget  : QWidget
        ...

To draw its up and down arrows, QSpinBox uses the PE_IndicatorSpinUp and PE_IndicatorSpinDown primitive elements. Here’s how to reimplement the drawPrimitive() function to draw them differently:

void CustomStyle::drawPrimitive(PrimitiveElement element, const QStyleOption *option,
                                QPainter *painter, const QWidget *widget) const
{
    if (element == PE_IndicatorSpinUp || element == PE_IndicatorSpinDown) {
        QPolygon points(3);
        int x = option->rect.x();
        int y = option->rect.y();
        int w = option->rect.width() / 2;
        int h = option->rect.height() / 2;
        x += (option->rect.width() - w) / 2;
        y += (option->rect.height() - h) / 2;

        if (element == PE_IndicatorSpinUp) {
            points[0] = QPoint(x, y + h);
            points[1] = QPoint(x + w, y + h);
            points[2] = QPoint(x + w / 2, y);
        } else { // PE_SpinBoxDown
            points[0] = QPoint(x, y);
            points[1] = QPoint(x + w, y);
            points[2] = QPoint(x + w / 2, y + h);
        }

        if (option->state & State_Enabled) {
            painter->setPen(option->palette.mid().color());
            painter->setBrush(option->palette.buttonText());
        } else {
            painter->setPen(option->palette.buttonText().color());
            painter->setBrush(option->palette.mid());
        }
        painter->drawPolygon(points);
    } else {
    QProxyStyle::drawPrimitive(element, option, painter, widget);
    }
}

Notice that we don’t use the widget argument, except to pass it on to the QWindowStyle::drawPrimitive() function. As mentioned earlier, the information about what is to be drawn and how it should be drawn is specified by a QStyleOption object, so there is no need to ask the widget.

If you need to use the widget argument to obtain additional information, be careful to ensure that it isn’t 0 and that it is of the correct type before using it. For example:

const QSpinBox *spinBox = qobject_cast<const QSpinBox *>(widget);
if (spinBox) {
...
}

When implementing a custom style, you cannot assume that the widget is a QSpinBox just because the enum value is called PE_IndicatorSpinUp or PE_IndicatorSpinDown .

The documentation for the Styles example covers this topic in more detail.

Warning

Qt style sheets are currently not supported for custom QStyle subclasses. We plan to address this in some future release.

Using a Custom Style

There are several ways of using a custom style in a Qt application. The simplest way is to pass the custom style to the setStyle() static function before creating the QApplication object:

#include <QtWidgets>

#include "customstyle.h"

int main(int argc, char *argv[])
{
    QApplication::setStyle(new CustomStyle);
    QApplication app(argc, argv);
    QSpinBox spinBox;
    spinBox.show();
    return app.exec();
}

You can call setStyle() at any time, but by calling it before the constructor, you ensure that the user’s preference, set using the -style command-line option, is respected.

You may want to make your custom style available for use in other applications, which may not be yours and hence not available for you to recompile. The Qt Plugin system makes it possible to create styles as plugins. Styles created as plugins are loaded as shared objects at runtime by Qt itself. Please refer to the Qt Plugin documentation for more information on how to go about creating a style plugin.

Compile your plugin and put it into Qt’s plugins/styles directory. We now have a pluggable style that Qt can load automatically. To use your new style with existing applications, simply start the application with the following argument:

python myapplication.py -style custom

The application will use the look and feel from the custom style you implemented.

Right-to-Left Desktops

Languages written from right to left (such as Arabic and Hebrew) usually also mirror the whole layout of widgets, and require the light to come from the screen’s top-right corner instead of top-left.

If you create a custom style, you should take special care when drawing asymmetric elements to make sure that they also look correct in a mirrored layout. An easy way to test your styles is to run applications with the -reverse command-line option or to call setLayoutDirection() in your main() function.

Here are some things to keep in mind when making a style work well in a right-to-left environment:

  • subControlRect() and subElementRect() return rectangles in screen coordinates

  • QStyleOption::direction indicates in which direction the item should be drawn in

  • If a style is not right-to-left aware it will display items as if it were left-to-right

  • visualRect() , visualPos() , and visualAlignment() are helpful functions that will translate from logical to screen representations.

  • alignedRect() will return a logical rect aligned for the current direction

Styles in Item Views

The painting of items in views is performed by a delegate. Qt’s default delegate, QStyledItemDelegate , is also used for calculating bounding rectangles of items, and their sub-elements for the various kind of item data roles QStyledItemDelegate supports. See the QStyledItemDelegate class description to find out which datatypes and roles are supported. You can read more about item data roles in Model/View Programming .

When QStyledItemDelegate paints its items, it draws CE_ItemViewItem , and calculates their size with CT_ItemViewItem . Note also that it uses SE_ItemViewItemText to set the size of editors. When implementing a style to customize drawing of item views, you need to check the implementation of QCommonStyle (and any other subclasses from which your style inherits). This way, you find out which and how other style elements are painted, and you can then reimplement the painting of elements that should be drawn differently.

We include a small example where we customize the drawing of item backgrounds.

switch (element) {
    case (PE_PanelItemViewItem): {
        painter->save();

        QPoint topLeft = option->rect.topLeft();
        QPoint bottomRight = option->rect.topRight();
        QLinearGradient backgroundGradient(topLeft, bottomRight);
        backgroundGradient.setColorAt(0.0, QColor(Qt::yellow).lighter(190));
        backgroundGradient.setColorAt(1.0, Qt::white);
        painter->fillRect(option->rect, QBrush(backgroundGradient));

        painter->restore();
    break;
    }
    default:
        QProxyStyle::drawPrimitive(element, option, painter, widget);
}

The primitive element PE_PanelItemViewItem is responsible for painting the background of items, and is called from QCommonStyle ‘s implementation of CE_ItemViewItem .

To add support for drawing of new datatypes and item data roles, it is necessary to create a custom delegate. But if you only need to support the datatypes implemented by the default delegate, a custom style does not need an accompanying delegate. The QStyledItemDelegate class description gives more information on custom delegates.

The drawing of item view headers is also done by the style, giving control over size of header items and row and column sizes.

class QStyle

Constructs a style object.

PySide2.QtWidgets.QStyle.StateFlag

This enum describes flags that are used when drawing primitive elements.

Note that not all primitives use all of these flags, and that the flags may mean different things to different items.

Constant

Description

QStyle.State_None

Indicates that the widget does not have a state.

QStyle.State_Active

Indicates that the widget is active.

QStyle.State_AutoRaise

Used to indicate if auto-raise appearance should be used on a tool button.

QStyle.State_Children

Used to indicate if an item view branch has children.

QStyle.State_DownArrow

Used to indicate if a down arrow should be visible on the widget.

QStyle.State_Editing

Used to indicate if an editor is opened on the widget.

QStyle.State_Enabled

Used to indicate if the widget is enabled.

QStyle.State_HasEditFocus

Used to indicate if the widget currently has edit focus.

QStyle.State_HasFocus

Used to indicate if the widget has focus.

QStyle.State_Horizontal

Used to indicate if the widget is laid out horizontally, for example. a tool bar.

QStyle.State_KeyboardFocusChange

Used to indicate if the focus was changed with the keyboard, e.g., tab, backtab or shortcut.

QStyle.State_MouseOver

Used to indicate if the widget is under the mouse.

QStyle.State_NoChange

Used to indicate a tri-state checkbox.

QStyle.State_Off

Used to indicate if the widget is not checked.

QStyle.State_On

Used to indicate if the widget is checked.

QStyle.State_Raised

Used to indicate if a button is raised.

QStyle.State_ReadOnly

Used to indicate if a widget is read-only.

QStyle.State_Selected

Used to indicate if a widget is selected.

QStyle.State_Item

Used by item views to indicate if a horizontal branch should be drawn.

QStyle.State_Open

Used by item views to indicate if the tree branch is open.

QStyle.State_Sibling

Used by item views to indicate if a vertical line needs to be drawn (for siblings).

QStyle.State_Sunken

Used to indicate if the widget is sunken or pressed.

QStyle.State_UpArrow

Used to indicate if an up arrow should be visible on the widget.

QStyle.State_Mini

Used to indicate a mini style Mac widget or button.

QStyle.State_Small

Used to indicate a small style Mac widget or button.

See also

drawPrimitive()

PySide2.QtWidgets.QStyle.PrimitiveElement

This enum describes the various primitive elements. A primitive element is a common GUI element, such as a checkbox indicator or button bevel.

Constant

Description

QStyle.PE_FrameStatusBar

Obsolete. Use instead.

QStyle.PE_PanelButtonCommand

Button used to initiate an action, for example, a QPushButton .

QStyle.PE_FrameDefaultButton

This frame around a default button, e.g. in a dialog.

QStyle.PE_PanelButtonBevel

Generic panel with a button bevel.

QStyle.PE_PanelButtonTool

Panel for a Tool button, used with QToolButton .

QStyle.PE_PanelLineEdit

Panel for a QLineEdit .

QStyle.PE_IndicatorButtonDropDown

Indicator for a drop down button, for example, a tool button that displays a menu.

QStyle.PE_FrameFocusRect

Generic focus indicator.

QStyle.PE_IndicatorArrowUp

Generic Up arrow.

QStyle.PE_IndicatorArrowDown

Generic Down arrow.

QStyle.PE_IndicatorArrowRight

Generic Right arrow.

QStyle.PE_IndicatorArrowLeft

Generic Left arrow.

QStyle.PE_IndicatorSpinUp

Up symbol for a spin widget, for example a QSpinBox .

QStyle.PE_IndicatorSpinDown

Down symbol for a spin widget.

QStyle.PE_IndicatorSpinPlus

Increase symbol for a spin widget.

QStyle.PE_IndicatorSpinMinus

Decrease symbol for a spin widget.

QStyle.PE_IndicatorItemViewItemCheck

On/off indicator for a view item.

QStyle.PE_IndicatorCheckBox

On/off indicator, for example, a QCheckBox .

QStyle.PE_IndicatorRadioButton

Exclusive on/off indicator, for example, a QRadioButton .

QStyle.PE_IndicatorDockWidgetResizeHandle

Resize handle for dock windows.

QStyle.PE_Frame

Generic frame

QStyle.PE_FrameMenu

Frame for popup windows/menus; see also QMenu .

QStyle.PE_PanelMenuBar

Panel for menu bars.

QStyle.PE_PanelScrollAreaCorner

Panel at the bottom-right (or bottom-left) corner of a scroll area.

QStyle.PE_FrameDockWidget

Panel frame for dock windows and toolbars.

QStyle.PE_FrameTabWidget

Frame for tab widgets.

QStyle.PE_FrameLineEdit

Panel frame for line edits.

QStyle.PE_FrameGroupBox

Panel frame around group boxes.

QStyle.PE_FrameButtonBevel

Panel frame for a button bevel.

QStyle.PE_FrameButtonTool

Panel frame for a tool button.

QStyle.PE_IndicatorHeaderArrow

Arrow used to indicate sorting on a list or table header.

QStyle.PE_FrameStatusBarItem

Frame for an item of a status bar; see also QStatusBar .

QStyle.PE_FrameWindow

Frame around a MDI window or a docking window.

QStyle.PE_IndicatorMenuCheckMark

Check mark used in a menu.

QStyle.PE_IndicatorProgressChunk

Section of a progress bar indicator; see also QProgressBar .

QStyle.PE_IndicatorBranch

Lines used to represent the branch of a tree in a tree view.

QStyle.PE_IndicatorToolBarHandle

The handle of a toolbar.

QStyle.PE_IndicatorToolBarSeparator

The separator in a toolbar.

QStyle.PE_PanelToolBar

The panel for a toolbar.

QStyle.PE_PanelTipLabel

The panel for a tip label.

QStyle.PE_FrameTabBarBase

The frame that is drawn for a tab bar, ususally drawn for a tab bar that isn’t part of a tab widget.

QStyle.PE_IndicatorTabTear

Deprecated. Use PE_IndicatorTabTearLeft instead.

QStyle.PE_IndicatorTabTearLeft

An indicator that a tab is partially scrolled out on the left side of the visible tab bar when there are many tabs.

QStyle.PE_IndicatorTabTearRight

An indicator that a tab is partially scrolled out on the right side of the visible tab bar when there are many tabs.

QStyle.PE_IndicatorColumnViewArrow

An arrow in a QColumnView .

QStyle.PE_Widget

A plain QWidget .

QStyle.PE_CustomBase

Base value for custom primitive elements. All values above this are reserved for custom use. Custom values must be greater than this value.

QStyle.PE_IndicatorItemViewItemDrop

An indicator that is drawn to show where an item in an item view is about to be dropped during a drag-and-drop operation in an item view.

QStyle.PE_PanelItemViewItem

The background for an item in an item view.

QStyle.PE_PanelItemViewRow

The background of a row in an item view.

QStyle.PE_PanelStatusBar

The panel for a status bar.

QStyle.PE_IndicatorTabClose

The close button on a tab bar.

QStyle.PE_PanelMenu

The panel for a menu.

See also

drawPrimitive()

PySide2.QtWidgets.QStyle.ControlElement

This enum represents a control element. A control element is a part of a widget that performs some action or displays information to the user.

Constant

Description

QStyle.CE_PushButton

A QPushButton , draws , and PE_FrameFocusRect .

QStyle.CE_PushButtonBevel

The bevel and default indicator of a QPushButton .

QStyle.CE_PushButtonLabel

The label (an icon with text or pixmap) of a QPushButton .

QStyle.CE_DockWidgetTitle

Dock window title.

QStyle.CE_Splitter

Splitter handle; see also QSplitter .

QStyle.CE_CheckBox

A QCheckBox , draws a PE_IndicatorCheckBox , a and a PE_FrameFocusRect .

QStyle.CE_CheckBoxLabel

The label (text or pixmap) of a QCheckBox .

QStyle.CE_RadioButton

A QRadioButton , draws a PE_IndicatorRadioButton , a and a PE_FrameFocusRect .

QStyle.CE_RadioButtonLabel

The label (text or pixmap) of a QRadioButton .

QStyle.CE_TabBarTab

The tab and label within a QTabBar .

QStyle.CE_TabBarTabShape

The tab shape within a tab bar.

QStyle.CE_TabBarTabLabel

The label within a tab.

QStyle.CE_ProgressBar

A QProgressBar , draws , and .

QStyle.CE_ProgressBarGroove

The groove where the progress indicator is drawn in a QProgressBar .

QStyle.CE_ProgressBarContents

The progress indicator of a QProgressBar .

QStyle.CE_ProgressBarLabel

The text label of a QProgressBar .

QStyle.CE_ToolButtonLabel

A tool button’s label.

QStyle.CE_MenuBarItem

A menu item in a QMenuBar .

QStyle.CE_MenuBarEmptyArea

The empty area of a QMenuBar .

QStyle.CE_MenuItem

A menu item in a QMenu .

QStyle.CE_MenuScroller

Scrolling areas in a QMenu when the style supports scrolling.

QStyle.CE_MenuTearoff

A menu item representing the tear off section of a QMenu .

QStyle.CE_MenuEmptyArea

The area in a menu without menu items.

QStyle.CE_MenuHMargin

The horizontal extra space on the left/right of a menu.

QStyle.CE_MenuVMargin

The vertical extra space on the top/bottom of a menu.

QStyle.CE_ToolBoxTab

The toolbox’s tab and label within a QToolBox .

QStyle.CE_SizeGrip

Window resize handle; see also QSizeGrip .

QStyle.CE_Header

A header.

QStyle.CE_HeaderSection

A header section.

QStyle.CE_HeaderLabel

The header’s label.

QStyle.CE_ScrollBarAddLine

Scroll bar line increase indicator. (i.e., scroll down); see also QScrollBar .

QStyle.CE_ScrollBarSubLine

Scroll bar line decrease indicator (i.e., scroll up).

QStyle.CE_ScrollBarAddPage

Scolllbar page increase indicator (i.e., page down).

QStyle.CE_ScrollBarSubPage

Scroll bar page decrease indicator (i.e., page up).

QStyle.CE_ScrollBarSlider

Scroll bar slider.

QStyle.CE_ScrollBarFirst

Scroll bar first line indicator (i.e., home).

QStyle.CE_ScrollBarLast

Scroll bar last line indicator (i.e., end).

QStyle.CE_RubberBand

Rubber band used in for example an icon view.

QStyle.CE_FocusFrame

Focus frame that is style controlled.

QStyle.CE_ItemViewItem

An item inside an item view.

QStyle.CE_CustomBase

Base value for custom control elements; custom values must be greater than this value.

QStyle.CE_ComboBoxLabel

The label of a non-editable QComboBox .

QStyle.CE_ToolBar

A toolbar like QToolBar .

QStyle.CE_ToolBoxTabShape

The toolbox’s tab shape.

QStyle.CE_ToolBoxTabLabel

The toolbox’s tab label.

QStyle.CE_HeaderEmptyArea

The area of a header view where there are no header sections.

QStyle.CE_ShapedFrame

The frame with the shape specified in the QStyleOptionFrame ; see QFrame .

See also

drawControl()

PySide2.QtWidgets.QStyle.SubElement

This enum represents a sub-area of a widget. Style implementations use these areas to draw the different parts of a widget.

Constant

Description

QStyle.SE_PushButtonContents

Area containing the label (icon with text or pixmap).

QStyle.SE_PushButtonFocusRect

Area for the focus rect (usually larger than the contents rect).

QStyle.SE_PushButtonLayoutItem

Area that counts for the parent layout.

QStyle.SE_CheckBoxIndicator

Area for the state indicator (e.g., check mark).

QStyle.SE_CheckBoxContents

Area for the label (text or pixmap).

QStyle.SE_CheckBoxFocusRect

Area for the focus indicator.

QStyle.SE_CheckBoxClickRect

Clickable area, defaults to .

QStyle.SE_CheckBoxLayoutItem

Area that counts for the parent layout.

QStyle.SE_DateTimeEditLayoutItem

Area that counts for the parent layout.

QStyle.SE_RadioButtonIndicator

Area for the state indicator.

QStyle.SE_RadioButtonContents

Area for the label.

QStyle.SE_RadioButtonFocusRect

Area for the focus indicator.

QStyle.SE_RadioButtonClickRect

Clickable area, defaults to .

QStyle.SE_RadioButtonLayoutItem

Area that counts for the parent layout.

QStyle.SE_ComboBoxFocusRect

Area for the focus indicator.

QStyle.SE_SliderFocusRect

Area for the focus indicator.

QStyle.SE_SliderLayoutItem

Area that counts for the parent layout.

QStyle.SE_SpinBoxLayoutItem

Area that counts for the parent layout.

QStyle.SE_ProgressBarGroove

Area for the groove.

QStyle.SE_ProgressBarContents

Area for the progress indicator.

QStyle.SE_ProgressBarLabel

Area for the text label.

QStyle.SE_ProgressBarLayoutItem

Area that counts for the parent layout.

QStyle.SE_FrameContents

Area for a frame’s contents.

QStyle.SE_ShapedFrameContents

Area for a frame’s contents using the shape in QStyleOptionFrame ; see QFrame

QStyle.SE_FrameLayoutItem

Area that counts for the parent layout.

QStyle.SE_HeaderArrow

Area for the sort indicator for a header.

QStyle.SE_HeaderLabel

Area for the label in a header.

QStyle.SE_LabelLayoutItem

Area that counts for the parent layout.

QStyle.SE_LineEditContents

Area for a line edit’s contents.

QStyle.SE_TabWidgetLeftCorner

Area for the left corner widget in a tab widget.

QStyle.SE_TabWidgetRightCorner

Area for the right corner widget in a tab widget.

QStyle.SE_TabWidgetTabBar

Area for the tab bar widget in a tab widget.

QStyle.SE_TabWidgetTabContents

Area for the contents of the tab widget.

QStyle.SE_TabWidgetTabPane

Area for the pane of a tab widget.

QStyle.SE_TabWidgetLayoutItem

Area that counts for the parent layout.

QStyle.SE_ToolBoxTabContents

Area for a toolbox tab’s icon and label.

QStyle.SE_ToolButtonLayoutItem

Area that counts for the parent layout.

QStyle.SE_ItemViewItemCheckIndicator

Area for a view item’s check mark.

QStyle.SE_TabBarTearIndicator

Deprecated. Use instead.

QStyle.SE_TabBarTearIndicatorLeft

Area for the tear indicator on the left side of a tab bar with scroll arrows.

QStyle.SE_TabBarTearIndicatorRight

Area for the tear indicator on the right side of a tab bar with scroll arrows.

QStyle.SE_TabBarScrollLeftButton

Area for the scroll left button on a tab bar with scroll buttons.

QStyle.SE_TabBarScrollRightButton

Area for the scroll right button on a tab bar with scroll buttons.

QStyle.SE_TreeViewDisclosureItem

Area for the actual disclosure item in a tree branch.

QStyle.SE_DialogButtonBoxLayoutItem

Area that counts for the parent layout.

QStyle.SE_GroupBoxLayoutItem

Area that counts for the parent layout.

QStyle.SE_CustomBase

Base value for custom sub-elements. Custom values must be greater than this value.

QStyle.SE_DockWidgetFloatButton

The float button of a dock widget.

QStyle.SE_DockWidgetTitleBarText

The text bounds of the dock widgets title.

QStyle.SE_DockWidgetCloseButton

The close button of a dock widget.

QStyle.SE_DockWidgetIcon

The icon of a dock widget.

QStyle.SE_ComboBoxLayoutItem

Area that counts for the parent layout.

QStyle.SE_ItemViewItemDecoration

Area for a view item’s decoration (icon).

QStyle.SE_ItemViewItemText

Area for a view item’s text.

QStyle.SE_ItemViewItemFocusRect

Area for a view item’s focus rect.

QStyle.SE_TabBarTabLeftButton

Area for a widget on the left side of a tab in a tab bar.

QStyle.SE_TabBarTabRightButton

Area for a widget on the right side of a tab in a tab bar.

QStyle.SE_TabBarTabText

Area for the text on a tab in a tab bar.

QStyle.SE_ToolBarHandle

Area for the handle of a tool bar.

See also

subElementRect()

PySide2.QtWidgets.QStyle.ComplexControl

This enum describes the available complex controls. Complex controls have different behavior depending upon where the user clicks on them or which keys are pressed.

Constant

Description

QStyle.CC_SpinBox

A spinbox, like QSpinBox .

QStyle.CC_ComboBox

A combobox, like QComboBox .

QStyle.CC_ScrollBar

A scroll bar, like QScrollBar .

QStyle.CC_Slider

A slider, like QSlider .

QStyle.CC_ToolButton

A tool button, like QToolButton .

QStyle.CC_TitleBar

A Title bar, like those used in QMdiSubWindow .

QStyle.CC_GroupBox

A group box, like QGroupBox .

QStyle.CC_Dial

A dial, like QDial .

QStyle.CC_MdiControls

The minimize, close, and normal button in the menu bar for a maximized MDI subwindow.

QStyle.CC_CustomBase

Base value for custom complex controls. Custom values must be greater than this value.

See also

SubControl drawComplexControl()

PySide2.QtWidgets.QStyle.SubControl

This enum describes the available sub controls. A subcontrol is a control element within a complex control ( ComplexControl ).

Constant

Description

QStyle.SC_None

Special value that matches no other sub control.

QStyle.SC_ScrollBarAddLine

Scroll bar add line (i.e., down/right arrow); see also QScrollBar .

QStyle.SC_ScrollBarSubLine

Scroll bar sub line (i.e., up/left arrow).

QStyle.SC_ScrollBarAddPage

Scroll bar add page (i.e., page down).

QStyle.SC_ScrollBarSubPage

Scroll bar sub page (i.e., page up).

QStyle.SC_ScrollBarFirst

Scroll bar first line (i.e., home).

QStyle.SC_ScrollBarLast

Scroll bar last line (i.e., end).

QStyle.SC_ScrollBarSlider

Scroll bar slider handle.

QStyle.SC_ScrollBarGroove

Special sub-control which contains the area in which the slider handle may move.

QStyle.SC_SpinBoxUp

Spin widget up/increase; see also QSpinBox .

QStyle.SC_SpinBoxDown

Spin widget down/decrease.

QStyle.SC_SpinBoxFrame

Spin widget frame.

QStyle.SC_SpinBoxEditField

Spin widget edit field.

QStyle.SC_ComboBoxEditField

Combobox edit field; see also QComboBox .

QStyle.SC_ComboBoxArrow

Combobox arrow button.

QStyle.SC_ComboBoxFrame

Combobox frame.

QStyle.SC_ComboBoxListBoxPopup

The reference rectangle for the combobox popup. Used to calculate the position of the popup.

QStyle.SC_SliderGroove

Special sub-control which contains the area in which the slider handle may move.

QStyle.SC_SliderHandle

Slider handle.

QStyle.SC_SliderTickmarks

Slider tickmarks.

QStyle.SC_ToolButton

Tool button (see also QToolButton ).

QStyle.SC_ToolButtonMenu

Sub-control for opening a popup menu in a tool button.

QStyle.SC_TitleBarSysMenu

System menu button (i.e., restore, close, etc.).

QStyle.SC_TitleBarMinButton

Minimize button.

QStyle.SC_TitleBarMaxButton

Maximize button.

QStyle.SC_TitleBarCloseButton

Close button.

QStyle.SC_TitleBarLabel

Window title label.

QStyle.SC_TitleBarNormalButton

Normal (restore) button.

QStyle.SC_TitleBarShadeButton

Shade button.

QStyle.SC_TitleBarUnshadeButton

Unshade button.

QStyle.SC_TitleBarContextHelpButton

Context Help button.

QStyle.SC_DialHandle

The handle of the dial (i.e. what you use to control the dial).

QStyle.SC_DialGroove

The groove for the dial.

QStyle.SC_DialTickmarks

The tickmarks for the dial.

QStyle.SC_GroupBoxFrame

The frame of a group box.

QStyle.SC_GroupBoxLabel

The title of a group box.

QStyle.SC_GroupBoxCheckBox

The optional check box of a group box.

QStyle.SC_GroupBoxContents

The group box contents.

QStyle.SC_MdiNormalButton

The normal button for a MDI subwindow in the menu bar.

QStyle.SC_MdiMinButton

The minimize button for a MDI subwindow in the menu bar.

QStyle.SC_MdiCloseButton

The close button for a MDI subwindow in the menu bar.

QStyle.SC_All

Special value that matches all sub-controls.

See also

ComplexControl

PySide2.QtWidgets.QStyle.PixelMetric

This enum describes the various available pixel metrics. A pixel metric is a style dependent size represented by a single pixel value.

Constant

Description

QStyle.PM_ButtonMargin

Amount of whitespace between push button labels and the frame.

QStyle.PM_DockWidgetTitleBarButtonMargin

Amount of whitespace between dock widget’s title bar button labels and the frame.

QStyle.PM_ButtonDefaultIndicator

Width of the default-button indicator frame.

QStyle.PM_MenuButtonIndicator

Width of the menu button indicator proportional to the widget height.

QStyle.PM_ButtonShiftHorizontal

Horizontal contents shift of a button when the button is down.

QStyle.PM_ButtonShiftVertical

Vertical contents shift of a button when the button is down.

QStyle.PM_DefaultFrameWidth

Default frame width (usually 2).

QStyle.PM_SpinBoxFrameWidth

Frame width of a spin box, defaults to .

QStyle.PM_ComboBoxFrameWidth

Frame width of a combo box, defaults to .

QStyle.PM_MDIFrameWidth

Obsolete. Use instead.

QStyle.PM_MdiSubWindowFrameWidth

Frame width of an MDI window.

QStyle.PM_MDIMinimizedWidth

Obsolete. Use instead.

QStyle.PM_MdiSubWindowMinimizedWidth

Width of a minimized MDI window.

QStyle.PM_LayoutLeftMargin

Default left margin for a QLayout .

QStyle.PM_LayoutTopMargin

Default top margin for a QLayout .

QStyle.PM_LayoutRightMargin

Default right margin for a QLayout .

QStyle.PM_LayoutBottomMargin

Default bottom margin for a QLayout .

QStyle.PM_LayoutHorizontalSpacing

Default horizontal spacing for a QLayout .

QStyle.PM_LayoutVerticalSpacing

Default vertical spacing for a QLayout .

QStyle.PM_MaximumDragDistance

The maximum allowed distance between the mouse and a scrollbar when dragging. Exceeding the specified distance will cause the slider to jump back to the original position; a value of -1 disables this behavior.

QStyle.PM_ScrollBarExtent

Width of a vertical scroll bar and the height of a horizontal scroll bar.

QStyle.PM_ScrollBarSliderMin

The minimum height of a vertical scroll bar’s slider and the minimum width of a horizontal scroll bar’s slider.

QStyle.PM_SliderThickness

Total slider thickness.

QStyle.PM_SliderControlThickness

Thickness of the slider handle.

QStyle.PM_SliderLength

Length of the slider.

QStyle.PM_SliderTickmarkOffset

The offset between the tickmarks and the slider.

QStyle.PM_SliderSpaceAvailable

The available space for the slider to move.

QStyle.PM_DockWidgetSeparatorExtent

Width of a separator in a horizontal dock window and the height of a separator in a vertical dock window.

QStyle.PM_DockWidgetHandleExtent

Width of the handle in a horizontal dock window and the height of the handle in a vertical dock window.

QStyle.PM_DockWidgetFrameWidth

Frame width of a dock window.

QStyle.PM_DockWidgetTitleMargin

Margin of the dock window title.

QStyle.PM_MenuBarPanelWidth

Frame width of a menu bar, defaults to .

QStyle.PM_MenuBarItemSpacing

Spacing between menu bar items.

QStyle.PM_MenuBarHMargin

Spacing between menu bar items and left/right of bar.

QStyle.PM_MenuBarVMargin

Spacing between menu bar items and top/bottom of bar.

QStyle.PM_ToolBarFrameWidth

Width of the frame around toolbars.

QStyle.PM_ToolBarHandleExtent

Width of a toolbar handle in a horizontal toolbar and the height of the handle in a vertical toolbar.

QStyle.PM_ToolBarItemMargin

Spacing between the toolbar frame and the items.

QStyle.PM_ToolBarItemSpacing

Spacing between toolbar items.

QStyle.PM_ToolBarSeparatorExtent

Width of a toolbar separator in a horizontal toolbar and the height of a separator in a vertical toolbar.

QStyle.PM_ToolBarExtensionExtent

Width of a toolbar extension button in a horizontal toolbar and the height of the button in a vertical toolbar.

QStyle.PM_TabBarTabOverlap

Number of pixels the tabs should overlap. (Currently only used in styles, not inside of QTabBar )

QStyle.PM_TabBarTabHSpace

Extra space added to the tab width.

QStyle.PM_TabBarTabVSpace

Extra space added to the tab height.

QStyle.PM_TabBarBaseHeight

Height of the area between the tab bar and the tab pages.

QStyle.PM_TabBarBaseOverlap

Number of pixels the tab bar overlaps the tab bar base.

QStyle.PM_TabBarScrollButtonWidth

QStyle.PM_TabBarTabShiftHorizontal

Horizontal pixel shift when a tab is selected.

QStyle.PM_TabBarTabShiftVertical

Vertical pixel shift when a tab is selected.

QStyle.PM_ProgressBarChunkWidth

Width of a chunk in a progress bar indicator.

QStyle.PM_SplitterWidth

Width of a splitter.

QStyle.PM_TitleBarHeight

Height of the title bar.

QStyle.PM_IndicatorWidth

Width of a check box indicator.

QStyle.PM_IndicatorHeight

Height of a checkbox indicator.

QStyle.PM_ExclusiveIndicatorWidth

Width of a radio button indicator.

QStyle.PM_ExclusiveIndicatorHeight

Height of a radio button indicator.

QStyle.PM_MenuPanelWidth

Border width (applied on all sides) for a QMenu .

QStyle.PM_MenuHMargin

Additional border (used on left and right) for a QMenu .

QStyle.PM_MenuVMargin

Additional border (used for bottom and top) for a QMenu .

QStyle.PM_MenuScrollerHeight

Height of the scroller area in a QMenu .

QStyle.PM_MenuTearoffHeight

Height of a tear off area in a QMenu .

QStyle.PM_MenuDesktopFrameWidth

The frame width for the menu on the desktop.

QStyle.PM_HeaderMarkSize

The size of the sort indicator in a header.

QStyle.PM_HeaderGripMargin

The size of the resize grip in a header.

QStyle.PM_HeaderMargin

The size of the margin between the sort indicator and the text.

QStyle.PM_SpinBoxSliderHeight

The height of the optional spin box slider.

QStyle.PM_ToolBarIconSize

Default tool bar icon size

QStyle.PM_SmallIconSize

Default small icon size

QStyle.PM_LargeIconSize

Default large icon size

QStyle.PM_FocusFrameHMargin

Horizontal margin that the focus frame will outset the widget by.

QStyle.PM_FocusFrameVMargin

Vertical margin that the focus frame will outset the widget by.

QStyle.PM_IconViewIconSize

The default size for icons in an icon view.

QStyle.PM_ListViewIconSize

The default size for icons in a list view.

QStyle.PM_ToolTipLabelFrameWidth

The frame width for a tool tip label.

QStyle.PM_CheckBoxLabelSpacing

The spacing between a check box indicator and its label.

QStyle.PM_RadioButtonLabelSpacing

The spacing between a radio button indicator and its label.

QStyle.PM_TabBarIconSize

The default icon size for a tab bar.

QStyle.PM_SizeGripSize

The size of a size grip.

QStyle.PM_MessageBoxIconSize

The size of the standard icons in a message box

QStyle.PM_ButtonIconSize

The default size of button icons

QStyle.PM_TextCursorWidth

The width of the cursor in a line edit or text edit

QStyle.PM_TabBar_ScrollButtonOverlap

The distance between the left and right buttons in a tab bar.

QStyle.PM_TabCloseIndicatorWidth

The default width of a close button on a tab in a tab bar.

QStyle.PM_TabCloseIndicatorHeight

The default height of a close button on a tab in a tab bar.

QStyle.PM_ScrollView_ScrollBarSpacing

Distance between frame and scrollbar with SH_ScrollView_FrameOnlyAroundContents set.

QStyle.PM_ScrollView_ScrollBarOverlap

Overlap between scroll bars and scroll content

QStyle.PM_SubMenuOverlap

The horizontal overlap between a submenu and its parent.

QStyle.PM_TreeViewIndentation

The indentation of items in a tree view. This enum value has been introduced in Qt 5.4.

QStyle.PM_HeaderDefaultSectionSizeHorizontal

The default size of sections in a horizontal header. This enum value has been introduced in Qt 5.5.

QStyle.PM_HeaderDefaultSectionSizeVertical

The default size of sections in a vertical header. This enum value has been introduced in Qt 5.5.

QStyle.PM_TitleBarButtonIconSize

The size of button icons on a title bar. This enum value has been introduced in Qt 5.8.

QStyle.PM_TitleBarButtonSize

The size of buttons on a title bar. This enum value has been introduced in Qt 5.8.

QStyle.PM_CustomBase

Base value for custom pixel metrics. Custom values must be greater than this value.

The following values are obsolete:

Constant

Description

QStyle.PM_DefaultTopLevelMargin

Use , , , and instead.

QStyle.PM_DefaultChildMargin

Use , , , and instead.

QStyle.PM_DefaultLayoutSpacing

Use and instead.

See also

pixelMetric()

PySide2.QtWidgets.QStyle.ContentsType

This enum describes the available contents types. These are used to calculate sizes for the contents of various widgets.

Constant

Description

QStyle.CT_CheckBox

A check box, like QCheckBox .

QStyle.CT_ComboBox

A combo box, like QComboBox .

QStyle.CT_HeaderSection

A header section, like QHeader.

QStyle.CT_LineEdit

A line edit, like QLineEdit .

QStyle.CT_Menu

A menu, like QMenu .

QStyle.CT_MenuBar

A menu bar, like QMenuBar .

QStyle.CT_MenuBarItem

A menu bar item, like the buttons in a QMenuBar .

QStyle.CT_MenuItem

A menu item, like QMenuItem.

QStyle.CT_ProgressBar

A progress bar, like QProgressBar .

QStyle.CT_PushButton

A push button, like QPushButton .

QStyle.CT_RadioButton

A radio button, like QRadioButton .

QStyle.CT_SizeGrip

A size grip, like QSizeGrip .

QStyle.CT_Slider

A slider, like QSlider .

QStyle.CT_ScrollBar

A scroll bar, like QScrollBar .

QStyle.CT_SpinBox

A spin box, like QSpinBox .

QStyle.CT_Splitter

A splitter, like QSplitter .

QStyle.CT_TabBarTab

A tab on a tab bar, like QTabBar .

QStyle.CT_TabWidget

A tab widget, like QTabWidget .

QStyle.CT_ToolButton

A tool button, like QToolButton .

QStyle.CT_GroupBox

A group box, like QGroupBox .

QStyle.CT_ItemViewItem

An item inside an item view.

QStyle.CT_CustomBase

Base value for custom contents types. Custom values must be greater than this value.

QStyle.CT_MdiControls

The minimize, normal, and close button in the menu bar for a maximized MDI subwindow.

PySide2.QtWidgets.QStyle.RequestSoftwareInputPanel

This enum describes under what circumstances a software input panel will be requested by input capable widgets.

Constant

Description

QStyle.RSIP_OnMouseClickAndAlreadyFocused

Requests an input panel if the user clicks on the widget, but only if it is already focused.

QStyle.RSIP_OnMouseClick

Requests an input panel if the user clicks on the widget.

See also

QInputMethod

New in version 4.6.

PySide2.QtWidgets.QStyle.StyleHint

This enum describes the available style hints. A style hint is a general look and/or feel hint.

Constant

Description

QStyle.SH_EtchDisabledText

Disabled text is “etched” as it is on Windows.

QStyle.SH_DitherDisabledText

Disabled text is dithered as it is on Motif.

QStyle.SH_ScrollBar_ContextMenu

Whether or not a scroll bar has a context menu.

QStyle.SH_ScrollBar_MiddleClickAbsolutePosition

A boolean value. If true, middle clicking on a scroll bar causes the slider to jump to that position. If false, middle clicking is ignored.

QStyle.SH_ScrollBar_LeftClickAbsolutePosition

A boolean value. If true, left clicking on a scroll bar causes the slider to jump to that position. If false, left clicking will behave as appropriate for each control.

QStyle.SH_ScrollBar_ScrollWhenPointerLeavesControl

A boolean value. If true, when clicking a scroll bar SubControl , holding the mouse button down and moving the pointer outside the SubControl , the scroll bar continues to scroll. If false, the scollbar stops scrolling when the pointer leaves the SubControl .

QStyle.SH_ScrollBar_RollBetweenButtons

A boolean value. If true, when clicking a scroll bar button ( SC_ScrollBarAddLine or SC_ScrollBarSubLine ) and dragging over to the opposite button (rolling) will press the new button and release the old one. When it is false, the original button is released and nothing happens (like a push button).

QStyle.SH_TabBar_Alignment

The alignment for tabs in a QTabWidget . Possible values are AlignLeft , AlignCenter and AlignRight .

QStyle.SH_Header_ArrowAlignment

The placement of the sorting indicator may appear in list or table headers. Possible values are Alignment values (that is, an OR combination of AlignmentFlag flags).

QStyle.SH_Slider_SnapToValue

Sliders snap to values while moving, as they do on Windows.

QStyle.SH_Slider_SloppyKeyEvents

Key presses handled in a sloppy manner, i.e., left on a vertical slider subtracts a line.

QStyle.SH_ProgressDialog_CenterCancelButton

Center button on progress dialogs, otherwise right aligned.

QStyle.SH_ProgressDialog_TextLabelAlignment

The alignment for text labels in progress dialogs; AlignCenter on Windows, AlignVCenter otherwise.

QStyle.SH_PrintDialog_RightAlignButtons

Right align buttons in the print dialog, as done on Windows.

QStyle.SH_MainWindow_SpaceBelowMenuBar

One or two pixel space between the menu bar and the dockarea, as done on Windows.

QStyle.SH_FontDialog_SelectAssociatedText

Select the text in the line edit, or when selecting an item from the listbox, or when the line edit receives focus, as done on Windows.

QStyle.SH_Menu_KeyboardSearch

Typing causes a menu to be search for relevant items, otherwise only mnemnonic is considered.

QStyle.SH_Menu_AllowActiveAndDisabled

Allows disabled menu items to be active.

QStyle.SH_Menu_SpaceActivatesItem

Pressing the space bar activates the item, as done on Motif.

QStyle.SH_Menu_SubMenuPopupDelay

The number of milliseconds to wait before opening a submenu (256 on Windows, 96 on Motif).

QStyle.SH_Menu_Scrollable

Whether popup menus must support scrolling.

QStyle.SH_Menu_SloppySubMenus

Whether popup menus must support the user moving the mouse cursor to a submenu while crossing other items of the menu. This is supported on most modern desktop platforms.

QStyle.SH_Menu_SubMenuUniDirection

Since Qt 5.5. If the cursor has to move towards the submenu (like it is on macOS ), or if the cursor can move in any direction as long as it reaches the submenu before the sloppy timeout.

QStyle.SH_Menu_SubMenuUniDirectionFailCount

Since Qt 5.5. When is defined this enum defines the number of failed mouse moves before the sloppy submenu is discarded. This can be used to control the “strictness” of the uni direction algorithm.

QStyle.SH_Menu_SubMenuSloppySelectOtherActions

Since Qt 5.5. Should other action items be selected when the mouse moves towards a sloppy submenu.

QStyle.SH_Menu_SubMenuSloppyCloseTimeout

Since Qt 5.5. The timeout used to close sloppy submenus.

QStyle.SH_Menu_SubMenuResetWhenReenteringParent

Since Qt 5.5. When entering parent from child submenu, should the sloppy state be reset, effectively closing the child and making the current submenu active.

QStyle.SH_Menu_SubMenuDontStartSloppyOnLeave

Since Qt 5.5. Do not start sloppy timers when the mouse leaves a sub-menu.

QStyle.SH_ScrollView_FrameOnlyAroundContents

Whether scrollviews draw their frame only around contents (like Motif), or around contents, scroll bars and corner widgets (like Windows).

QStyle.SH_MenuBar_AltKeyNavigation

Menu bars items are navigable by pressing Alt, followed by using the arrow keys to select the desired item.

QStyle.SH_ComboBox_ListMouseTracking

Mouse tracking in combobox drop-down lists.

QStyle.SH_Menu_MouseTracking

Mouse tracking in popup menus.

QStyle.SH_MenuBar_MouseTracking

Mouse tracking in menu bars.

QStyle.SH_Menu_FillScreenWithScroll

Whether scrolling popups should fill the screen as they are scrolled.

QStyle.SH_Menu_SelectionWrap

Whether popups should allow the selections to wrap, that is when selection should the next item be the first item.

QStyle.SH_ItemView_ChangeHighlightOnFocus

Gray out selected items when losing focus.

QStyle.SH_Widget_ShareActivation

Turn on sharing activation with floating modeless dialogs.

QStyle.SH_TabBar_SelectMouseType

Which type of mouse event should cause a tab to be selected.

QStyle.SH_ListViewExpand_SelectMouseType

Which type of mouse event should cause a list view expansion to be selected.

QStyle.SH_TabBar_PreferNoArrows

Whether a tab bar should suggest a size to prevent scoll arrows.

QStyle.SH_ComboBox_Popup

Allows popups as a combobox drop-down menu.

QStyle.SH_Workspace_FillSpaceOnMaximize

The workspace should maximize the client area.

QStyle.SH_TitleBar_NoBorder

The title bar has no border.

QStyle.SH_ScrollBar_StopMouseOverSlider

Obsolete. Use instead.

QStyle.SH_Slider_StopMouseOverSlider

Stops auto-repeat when the slider reaches the mouse position.

QStyle.SH_BlinkCursorWhenTextSelected

Whether cursor should blink when text is selected.

QStyle.SH_RichText_FullWidthSelection

Whether richtext selections should extend to the full width of the document.

QStyle.SH_GroupBox_TextLabelVerticalAlignment

How to vertically align a group box’s text label.

QStyle.SH_GroupBox_TextLabelColor

How to paint a group box’s text label.

QStyle.SH_DialogButtons_DefaultButton

Which button gets the default status in a dialog’s button widget.

QStyle.SH_ToolBox_SelectedPageTitleBold

Boldness of the selected page title in a QToolBox .

QStyle.SH_LineEdit_PasswordCharacter

The Unicode character to be used for passwords.

QStyle.SH_LineEdit_PasswordMaskDelay

Determines the delay before visible character is masked with password character, in milliseconds. This enum value was added in Qt 5.4.

QStyle.SH_Table_GridLineColor

The RGB value of the grid for a table.

QStyle.SH_UnderlineShortcut

Whether shortcuts are underlined.

QStyle.SH_SpellCheckUnderlineStyle

Obsolete. Use SpellCheckUnderlineStyle hint in QPlatformTheme instead.

QStyle.SH_SpinBox_AnimateButton

Animate a click when up or down is pressed in a spin box.

QStyle.SH_SpinBox_KeyPressAutoRepeatRate

Auto-repeat interval for spinbox key presses.

QStyle.SH_SpinBox_ClickAutoRepeatRate

Auto-repeat interval for spinbox mouse clicks.

QStyle.SH_SpinBox_ClickAutoRepeatThreshold

Auto-repeat threshold for spinbox mouse clicks.

QStyle.SH_ToolTipLabel_Opacity

An integer indicating the opacity for the tip label, 0 is completely transparent, 255 is completely opaque.

QStyle.SH_DrawMenuBarSeparator

Indicates whether or not the menu bar draws separators.

QStyle.SH_TitleBar_ModifyNotification

Indicates if the title bar should show a ‘*’ for windows that are modified.

QStyle.SH_Button_FocusPolicy

The default focus policy for buttons.

QStyle.SH_CustomBase

Base value for custom style hints. Custom values must be greater than this value.

QStyle.SH_MessageBox_UseBorderForButtonSpacing

A boolean indicating what the to use the border of the buttons (computed as half the button height) for the spacing of the button in a message box.

QStyle.SH_MessageBox_CenterButtons

A boolean indicating whether the buttons in the message box should be centered or not (see QDialogButtonBox::setCentered()).

QStyle.SH_MessageBox_TextInteractionFlags

A boolean indicating if the text in a message box should allow user interfactions (e.g. selection) or not.

QStyle.SH_TitleBar_AutoRaise

A boolean indicating whether controls on a title bar ought to update when the mouse is over them.

QStyle.SH_ToolButton_PopupDelay

An int indicating the popup delay in milliseconds for menus attached to tool buttons.

QStyle.SH_FocusFrame_Mask

The mask of the focus frame.

QStyle.SH_RubberBand_Mask

The mask of the rubber band.

QStyle.SH_WindowFrame_Mask

The mask of the window frame.

QStyle.SH_SpinControls_DisableOnBounds

Determines if the spin controls will shown as disabled when reaching the spin range boundary.

QStyle.SH_Dial_BackgroundRole

Defines the style’s preferred background role (as ColorRole ) for a dial widget.

QStyle.SH_ComboBox_LayoutDirection

The layout direction for the combo box. By default it should be the same as indicated by the QStyleOption::direction variable.

QStyle.SH_ItemView_EllipsisLocation

The location where ellipses should be added for item text that is too long to fit in an view item.

QStyle.SH_ItemView_ShowDecorationSelected

When an item in an item view is selected, also highlight the branch or other decoration.

QStyle.SH_ItemView_ActivateItemOnSingleClick

Emit the activated signal when the user single clicks on an item in an item in an item view. Otherwise the signal is emitted when the user double clicks on an item.

QStyle.SH_Slider_AbsoluteSetButtons

Which mouse buttons cause a slider to set the value to the position clicked on.

QStyle.SH_Slider_PageSetButtons

Which mouse buttons cause a slider to page step the value.

QStyle.SH_TabBar_ElideMode

The default eliding style for a tab bar.

QStyle.SH_DialogButtonLayout

Controls how buttons are laid out in a QDialogButtonBox , returns a ButtonLayout enum.

QStyle.SH_WizardStyle

Controls the look and feel of a QWizard . Returns a WizardStyle enum.

QStyle.SH_FormLayoutWrapPolicy

Provides a default for how rows are wrapped in a QFormLayout . Returns a RowWrapPolicy enum.

QStyle.SH_FormLayoutFieldGrowthPolicy

Provides a default for how fields can grow in a QFormLayout . Returns a FieldGrowthPolicy enum.

QStyle.SH_FormLayoutFormAlignment

Provides a default for how a QFormLayout aligns its contents within the available space. Returns a Alignment enum.

QStyle.SH_FormLayoutLabelAlignment

Provides a default for how a QFormLayout aligns labels within the available space. Returns a Alignment enum.

QStyle.SH_ItemView_ArrowKeysNavigateIntoChildren

Controls whether the tree view will select the first child when it is exapanded and the right arrow key is pressed.

QStyle.SH_ComboBox_PopupFrameStyle

The frame style used when drawing a combobox popup menu.

QStyle.SH_DialogButtonBox_ButtonsHaveIcons

Indicates whether or not StandardButtons in QDialogButtonBox should have icons or not.

QStyle.SH_ItemView_MovementWithoutUpdatingSelection

The item view is able to indicate a current item without changing the selection.

QStyle.SH_ToolTip_Mask

The mask of a tool tip.

QStyle.SH_FocusFrame_AboveWidget

The FocusFrame is stacked above the widget that it is “focusing on”.

QStyle.SH_TextControl_FocusIndicatorTextCharFormat

Specifies the text format used to highlight focused anchors in rich text documents displayed for example in QTextBrowser . The format has to be a QTextCharFormat returned in the variant of the QStyleHintReturnVariant return value. The OutlinePen property is used for the outline and BackgroundBrush for the background of the highlighted area.

QStyle.SH_Menu_FlashTriggeredItem

Flash triggered item.

QStyle.SH_Menu_FadeOutOnHide

Fade out the menu instead of hiding it immediately.

QStyle.SH_TabWidget_DefaultTabPosition

Default position of the tab bar in a tab widget.

QStyle.SH_ToolBar_Movable

Determines if the tool bar is movable by default.

QStyle.SH_ItemView_PaintAlternatingRowColorsForEmptyArea

Whether QTreeView paints alternating row colors for the area that does not have any items.

QStyle.SH_Menu_Mask

The mask for a popup menu.

QStyle.SH_ItemView_DrawDelegateFrame

Determines if there should be a frame for a delegate widget.

QStyle.SH_TabBar_CloseButtonPosition

Determines the position of the close button on a tab in a tab bar.

QStyle.SH_DockWidget_ButtonsHaveFrame

Determines if dockwidget buttons should have frames. Default is true.

QStyle.SH_ToolButtonStyle

Determines the default system style for tool buttons that uses ToolButtonFollowStyle .

QStyle.SH_RequestSoftwareInputPanel

Determines when a software input panel should be requested by input widgets. Returns an enum of type RequestSoftwareInputPanel .

QStyle.SH_ScrollBar_Transient

Determines if the style supports transient scroll bars. Transient scroll bars appear when the content is scrolled and disappear when they are no longer needed.

QStyle.SH_Menu_SupportsSections

Determines if the style displays sections in menus or treat them as plain separators. Sections are separators with a text and icon hint.

QStyle.SH_ToolTip_WakeUpDelay

Determines the delay before a tooltip is shown, in milliseconds.

QStyle.SH_ToolTip_FallAsleepDelay

Determines the delay (in milliseconds) before a new wake time is needed when a tooltip is shown (notice: shown, not hidden). When a new wake isn’t needed, a user-requested tooltip will be shown nearly instantly.

QStyle.SH_Widget_Animate

Deprecated. Use SH_Widget_Animation_Duration instead.

QStyle.SH_Splitter_OpaqueResize

Determines if widgets are resized dynamically (opaquely) while interactively moving the splitter. This enum value was introduced in Qt 5.2.

QStyle.SH_TabBar_ChangeCurrentDelay

Determines the delay before the current tab is changed while dragging over the tabbar, in milliseconds. This enum value has been introduced in Qt 5.4

QStyle.SH_ItemView_ScrollMode

The default vertical and horizontal scroll mode as specified by the style. Can be overridden with setVerticalScrollMode() and setHorizontalScrollMode() . This enum value has been introduced in Qt 5.7.

QStyle.SH_TitleBar_ShowToolTipsOnButtons

Determines if tool tips are shown on window title bar buttons. The Mac style, for example, sets this to false. This enum value has been introduced in Qt 5.10.

QStyle.SH_Widget_Animation_Duration

Determines how much an animation should last (in ms). A value equal to zero means that the animations will be disabled. This enum value has been introduced in Qt 5.10.

QStyle.SH_ComboBox_AllowWheelScrolling

Determines if the mouse wheel can be used to scroll inside a QComboBox . This is on by default in all styles except the Mac style. This enum value has been introduced in Qt 5.10.

QStyle.SH_SpinBox_ButtonsInsideFrame

Determines if the spin box buttons are inside the line edit frame. This enum value has been introduced in Qt 5.11.

QStyle.SH_SpinBox_StepModifier

Determines which KeyboardModifier increases the step rate of QAbstractSpinBox . Possible values are NoModifier , ControlModifier (default) or ShiftModifier . NoModifier disables this feature. This enum value has been introduced in Qt 5.12.

See also

styleHint()

PySide2.QtWidgets.QStyle.StandardPixmap

This enum describes the available standard pixmaps. A standard pixmap is a pixmap that can follow some existing GUI style or guideline.

Constant

Description

QStyle.SP_TitleBarMinButton

Minimize button on title bars (e.g., in QMdiSubWindow ).

QStyle.SP_TitleBarMenuButton

Menu button on a title bar.

QStyle.SP_TitleBarMaxButton

Maximize button on title bars.

QStyle.SP_TitleBarCloseButton

Close button on title bars.

QStyle.SP_TitleBarNormalButton

Normal (restore) button on title bars.

QStyle.SP_TitleBarShadeButton

Shade button on title bars.

QStyle.SP_TitleBarUnshadeButton

Unshade button on title bars.

QStyle.SP_TitleBarContextHelpButton

The Context help button on title bars.

QStyle.SP_MessageBoxInformation

The “information” icon.

QStyle.SP_MessageBoxWarning

The “warning” icon.

QStyle.SP_MessageBoxCritical

The “critical” icon.

QStyle.SP_MessageBoxQuestion

The “question” icon.

QStyle.SP_DesktopIcon

The “desktop” icon.

QStyle.SP_TrashIcon

The “trash” icon.

QStyle.SP_ComputerIcon

The “My computer” icon.

QStyle.SP_DriveFDIcon

The floppy icon.

QStyle.SP_DriveHDIcon

The harddrive icon.

QStyle.SP_DriveCDIcon

The CD icon.

QStyle.SP_DriveDVDIcon

The DVD icon.

QStyle.SP_DriveNetIcon

The network icon.

QStyle.SP_DirHomeIcon

The home directory icon.

QStyle.SP_DirOpenIcon

The open directory icon.

QStyle.SP_DirClosedIcon

The closed directory icon.

QStyle.SP_DirIcon

The directory icon.

QStyle.SP_DirLinkIcon

The link to directory icon.

QStyle.SP_DirLinkOpenIcon

The link to open directory icon.

QStyle.SP_FileIcon

The file icon.

QStyle.SP_FileLinkIcon

The link to file icon.

QStyle.SP_FileDialogStart

The “start” icon in a file dialog.

QStyle.SP_FileDialogEnd

The “end” icon in a file dialog.

QStyle.SP_FileDialogToParent

The “parent directory” icon in a file dialog.

QStyle.SP_FileDialogNewFolder

The “create new folder” icon in a file dialog.

QStyle.SP_FileDialogDetailedView

The detailed view icon in a file dialog.

QStyle.SP_FileDialogInfoView

The file info icon in a file dialog.

QStyle.SP_FileDialogContentsView

The contents view icon in a file dialog.

QStyle.SP_FileDialogListView

The list view icon in a file dialog.

QStyle.SP_FileDialogBack

The back arrow in a file dialog.

QStyle.SP_DockWidgetCloseButton

Close button on dock windows (see also QDockWidget ).

QStyle.SP_ToolBarHorizontalExtensionButton

Extension button for horizontal toolbars.

QStyle.SP_ToolBarVerticalExtensionButton

Extension button for vertical toolbars.

QStyle.SP_DialogOkButton

Icon for a standard OK button in a QDialogButtonBox .

QStyle.SP_DialogCancelButton

Icon for a standard Cancel button in a QDialogButtonBox .

QStyle.SP_DialogHelpButton

Icon for a standard Help button in a QDialogButtonBox .

QStyle.SP_DialogOpenButton

Icon for a standard Open button in a QDialogButtonBox .

QStyle.SP_DialogSaveButton

Icon for a standard Save button in a QDialogButtonBox .

QStyle.SP_DialogCloseButton

Icon for a standard Close button in a QDialogButtonBox .

QStyle.SP_DialogApplyButton

Icon for a standard Apply button in a QDialogButtonBox .

QStyle.SP_DialogResetButton

Icon for a standard Reset button in a QDialogButtonBox .

QStyle.SP_DialogDiscardButton

Icon for a standard Discard button in a QDialogButtonBox .

QStyle.SP_DialogYesButton

Icon for a standard Yes button in a QDialogButtonBox .

QStyle.SP_DialogNoButton

Icon for a standard No button in a QDialogButtonBox .

QStyle.SP_ArrowUp

Icon arrow pointing up.

QStyle.SP_ArrowDown

Icon arrow pointing down.

QStyle.SP_ArrowLeft

Icon arrow pointing left.

QStyle.SP_ArrowRight

Icon arrow pointing right.

QStyle.SP_ArrowBack

Equivalent to when the current layout direction is LeftToRight , otherwise .

QStyle.SP_ArrowForward

Equivalent to when the current layout direction is LeftToRight , otherwise .

QStyle.SP_CommandLink

Icon used to indicate a Vista style command link glyph.

QStyle.SP_VistaShield

Icon used to indicate UAC prompts on Windows Vista. This will return a null pixmap or icon on all other platforms.

QStyle.SP_BrowserReload

Icon indicating that the current page should be reloaded.

QStyle.SP_BrowserStop

Icon indicating that the page loading should stop.

QStyle.SP_MediaPlay

Icon indicating that media should begin playback.

QStyle.SP_MediaStop

Icon indicating that media should stop playback.

QStyle.SP_MediaPause

Icon indicating that media should pause playback.

QStyle.SP_MediaSkipForward

Icon indicating that media should skip forward.

QStyle.SP_MediaSkipBackward

Icon indicating that media should skip backward.

QStyle.SP_MediaSeekForward

Icon indicating that media should seek forward.

QStyle.SP_MediaSeekBackward

Icon indicating that media should seek backward.

QStyle.SP_MediaVolume

Icon indicating a volume control.

QStyle.SP_MediaVolumeMuted

Icon indicating a muted volume control.

QStyle.SP_LineEditClearButton

Icon for a standard clear button in a QLineEdit . This enum value was added in Qt 5.2.

QStyle.SP_CustomBase

Base value for custom standard pixmaps; custom values must be greater than this value.

See also

standardIcon()

static PySide2.QtWidgets.QStyle.alignedRect(direction, alignment, size, rectangle)
Parameters
  • directionLayoutDirection

  • alignmentAlignment

  • sizeQSize

  • rectangleQRect

Return type

QRect

Returns a new rectangle of the specified size that is aligned to the given rectangle according to the specified alignment and direction .

PySide2.QtWidgets.QStyle.combinedLayoutSpacing(controls1, controls2, orientation[, option=None[, widget=None]])
Parameters
  • controls1ControlTypes

  • controls2ControlTypes

  • orientationOrientation

  • optionQStyleOption

  • widgetQWidget

Return type

int

Returns the spacing that should be used between controls1 and controls2 in a layout. orientation specifies whether the controls are laid out side by side or stacked vertically. The option parameter can be used to pass extra information about the parent widget. The widget parameter is optional and can also be used if option is 0.

controls1 and controls2 are OR-combination of zero or more control types .

This function is called by the layout system. It is used only if PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a negative value.

See also

layoutSpacing()

PySide2.QtWidgets.QStyle.drawComplexControl(cc, opt, p[, widget=None])
Parameters

Draws the given control using the provided painter with the style options specified by option .

The widget argument is optional and can be used as aid in drawing the control.

The option parameter is a pointer to a QStyleOptionComplex object that can be cast to the correct subclass using the qstyleoption_cast() function. Note that the rect member of the specified option must be in logical coordinates. Reimplementations of this function should use visualRect() to change the logical coordinates into screen coordinates before calling the drawPrimitive() or drawControl() function.

The table below is listing the complex control elements and their associated style option subclass. The style options contain all the parameters required to draw the controls, including QStyleOption::state which holds the style flags that are used when drawing. The table also describes which flags that are set when casting the given option to the appropriate subclass.

Complex Control

QStyleOptionComplex Subclass

Style Flag

Remark

CC_SpinBox

QStyleOptionSpinBox

State_Enabled

Set if the spin box is enabled.

State_HasFocus

Set if the spin box has input focus.

CC_ComboBox

QStyleOptionComboBox

State_Enabled

Set if the combobox is enabled.

State_HasFocus

Set if the combobox has input focus.

CC_ScrollBar

QStyleOptionSlider

State_Enabled

Set if the scroll bar is enabled.

State_HasFocus

Set if the scroll bar has input focus.

CC_Slider

QStyleOptionSlider

State_Enabled

Set if the slider is enabled.

State_HasFocus

Set if the slider has input focus.

CC_Dial

QStyleOptionSlider

State_Enabled

Set if the dial is enabled.

State_HasFocus

Set if the dial has input focus.

CC_ToolButton

QStyleOptionToolButton

State_Enabled

Set if the tool button is enabled.

State_HasFocus

Set if the tool button has input focus.

State_DownArrow

Set if the tool button is down (i.e., a mouse button or the space bar is pressed).

State_On

Set if the tool button is a toggle button and is toggled on.

State_AutoRaise

Set if the tool button has auto-raise enabled.

State_Raised

Set if the button is not down, not on, and doesn’t contain the mouse when auto-raise is enabled.

CC_TitleBar

QStyleOptionTitleBar

State_Enabled

Set if the title bar is enabled.

PySide2.QtWidgets.QStyle.drawControl(element, opt, p[, widget=None])
Parameters

Draws the given element with the provided painter with the style options specified by option .

The widget argument is optional and can be used as aid in drawing the control. The option parameter is a pointer to a QStyleOption object that can be cast to the correct subclass using the qstyleoption_cast() function.

The table below is listing the control elements and their associated style option subclass. The style options contain all the parameters required to draw the controls, including QStyleOption::state which holds the style flags that are used when drawing. The table also describes which flags that are set when casting the given option to the appropriate subclass.

Note that if a control element is not listed here, it is because it uses a plain QStyleOption object.

Control Element

QStyleOption Subclass

Style Flag

Remark

CE_MenuItem , CE_MenuBarItem

QStyleOptionMenuItem

State_Selected

The menu item is currently selected item.

State_Enabled

The item is enabled.

State_DownArrow

Indicates that a scroll down arrow should be drawn.

State_UpArrow

Indicates that a scroll up arrow should be drawn

State_HasFocus

Set if the menu bar has input focus.

CE_PushButton , CE_PushButtonBevel , CE_PushButtonLabel

QStyleOptionButton

State_Enabled

Set if the button is enabled.

State_HasFocus

Set if the button has input focus.

State_Raised

Set if the button is not down, not on and not flat.

State_On

Set if the button is a toggle button and is toggled on.

State_Sunken

Set if the button is down (i.e., the mouse button or the space bar is pressed on the button).

CE_RadioButton , CE_RadioButtonLabel , CE_CheckBox , CE_CheckBoxLabel

QStyleOptionButton

State_Enabled

Set if the button is enabled.

State_HasFocus

Set if the button has input focus.

State_On

Set if the button is checked.

State_Off

Set if the button is not checked.

State_NoChange

Set if the button is in the NoChange state.

State_Sunken

Set if the button is down (i.e., the mouse button or the space bar is pressed on the button).

CE_ProgressBarContents , CE_ProgressBarLabel , CE_ProgressBarGroove

QStyleOptionProgressBar

State_Enabled

Set if the progress bar is enabled.

State_HasFocus

Set if the progress bar has input focus.

CE_Header , CE_HeaderSection , CE_HeaderLabel

QStyleOptionHeader

CE_TabBarTab , CE_TabBarTabShape , CE_TabBarTabLabel

QStyleOptionTab

State_Enabled

Set if the tab bar is enabled.

State_Selected

The tab bar is the currently selected tab bar.

State_HasFocus

Set if the tab bar tab has input focus.

CE_ToolButtonLabel

QStyleOptionToolButton

State_Enabled

Set if the tool button is enabled.

State_HasFocus

Set if the tool button has input focus.

State_Sunken

Set if the tool button is down (i.e., a mouse button or the space bar is pressed).

State_On

Set if the tool button is a toggle button and is toggled on.

State_AutoRaise

Set if the tool button has auto-raise enabled.

State_MouseOver

Set if the mouse pointer is over the tool button.

State_Raised

Set if the button is not down and is not on.

CE_ToolBoxTab

QStyleOptionToolBox

State_Selected

The tab is the currently selected tab.

CE_HeaderSection

QStyleOptionHeader

State_Sunken

Indicates that the section is pressed.

State_UpArrow

Indicates that the sort indicator should be pointing up.

State_DownArrow

Indicates that the sort indicator should be pointing down.

PySide2.QtWidgets.QStyle.drawItemPixmap(painter, rect, alignment, pixmap)
Parameters
  • painterQPainter

  • rectQRect

  • alignmentint

  • pixmapQPixmap

Draws the given pixmap in the specified rectangle , according to the specified alignment , using the provided painter .

See also

drawItemText()

PySide2.QtWidgets.QStyle.drawItemText(painter, rect, flags, pal, enabled, text[, textRole=QPalette.NoRole])
Parameters
  • painterQPainter

  • rectQRect

  • flagsint

  • palQPalette

  • enabledbool

  • text – unicode

  • textRoleColorRole

Draws the given text in the specified rectangle using the provided painter and palette .

The text is drawn using the painter’s pen, and aligned and wrapped according to the specified alignment . If an explicit textRole is specified, the text is drawn using the palette ‘s color for the given role. The enabled parameter indicates whether or not the item is enabled; when reimplementing this function, the enabled parameter should influence how the item is drawn.

See also

Alignment drawItemPixmap()

PySide2.QtWidgets.QStyle.drawPrimitive(pe, opt, p[, widget=None])
Parameters

Draws the given primitive element with the provided painter using the style options specified by option .

The widget argument is optional and may contain a widget that may aid in drawing the primitive element.

The table below is listing the primitive elements and their associated style option subclasses. The style options contain all the parameters required to draw the elements, including QStyleOption::state which holds the style flags that are used when drawing. The table also describes which flags that are set when casting the given option to the appropriate subclass.

Note that if a primitive element is not listed here, it is because it uses a plain QStyleOption object.

Primitive Element

QStyleOption Subclass

Style Flag

Remark

PE_FrameFocusRect

QStyleOptionFocusRect

State_FocusAtBorder

Whether the focus is is at the border or inside the widget.

PE_IndicatorCheckBox

QStyleOptionButton

State_NoChange

Indicates a “tri-state” checkbox.

State_On

Indicates the indicator is checked.

PE_IndicatorRadioButton

QStyleOptionButton

State_On

Indicates that a radio button is selected.

State_NoChange

Indicates a “tri-state” controller.

State_Enabled

Indicates the controller is enabled.

PE_IndicatorBranch

QStyleOption

State_Children

Indicates that the control for expanding the tree to show child items, should be drawn.

State_Item

Indicates that a horizontal branch (to show a child item), should be drawn.

State_Open

Indicates that the tree branch is expanded.

State_Sibling

Indicates that a vertical line (to show a sibling item), should be drawn.

PE_IndicatorHeaderArrow

QStyleOptionHeader

State_UpArrow

Indicates that the arrow should be drawn up; otherwise it should be down.

PE_FrameGroupBox , PE_Frame , PE_FrameLineEdit , PE_FrameMenu , PE_FrameDockWidget , PE_FrameWindow

QStyleOptionFrame

State_Sunken

Indicates that the Frame should be sunken.

PE_IndicatorToolBarHandle

QStyleOption

State_Horizontal

Indicates that the window handle is horizontal instead of vertical.

PE_IndicatorSpinPlus , PE_IndicatorSpinMinus , PE_IndicatorSpinUp , PE_IndicatorSpinDown ,

QStyleOptionSpinBox

State_Sunken

Indicates that the button is pressed.

PE_PanelButtonCommand

QStyleOptionButton

State_Enabled

Set if the button is enabled.

State_HasFocus

Set if the button has input focus.

State_Raised

Set if the button is not down, not on and not flat.

State_On

Set if the button is a toggle button and is toggled on.

State_Sunken

Set if the button is down (i.e., the mouse button or the space bar is pressed on the button).

PySide2.QtWidgets.QStyle.generatedIconPixmap(iconMode, pixmap, opt)
Parameters
Return type

QPixmap

Returns a copy of the given pixmap , styled to conform to the specified iconMode and taking into account the palette specified by option .

The option parameter can pass extra information, but it must contain a palette.

Note that not all pixmaps will conform, in which case the returned pixmap is a plain copy.

See also

QIcon

PySide2.QtWidgets.QStyle.hitTestComplexControl(cc, opt, pt[, widget=None])
Parameters
Return type

SubControl

Returns the sub control at the given position in the given complex control (with the style options specified by option ).

Note that the position is expressed in screen coordinates.

The option argument is a pointer to a QStyleOptionComplex object (or one of its subclasses). The object can be cast to the appropriate type using the qstyleoption_cast() function. See drawComplexControl() for details. The widget argument is optional and can contain additional information for the function.

PySide2.QtWidgets.QStyle.itemPixmapRect(r, flags, pixmap)
Parameters
  • rQRect

  • flagsint

  • pixmapQPixmap

Return type

QRect

Returns the area within the given rectangle in which to draw the specified pixmap according to the defined alignment .

PySide2.QtWidgets.QStyle.itemTextRect(fm, r, flags, enabled, text)
Parameters
  • fmQFontMetrics

  • rQRect

  • flagsint

  • enabledbool

  • text – unicode

Return type

QRect

Returns the area within the given rectangle in which to draw the provided text according to the specified font metrics and alignment . The enabled parameter indicates whether or not the associated item is enabled.

If the given rectangle is larger than the area needed to render the text , the rectangle that is returned will be offset within rectangle according to the specified alignment . For example, if alignment is AlignCenter , the returned rectangle will be centered within rectangle . If the given rectangle is smaller than the area needed, the returned rectangle will be the smallest rectangle large enough to render the text .

See also

Alignment

PySide2.QtWidgets.QStyle.layoutSpacing(control1, control2, orientation[, option=None[, widget=None]])
Parameters
  • control1ControlType

  • control2ControlType

  • orientationOrientation

  • optionQStyleOption

  • widgetQWidget

Return type

int

Returns the spacing that should be used between control1 and control2 in a layout. orientation specifies whether the controls are laid out side by side or stacked vertically. The option parameter can be used to pass extra information about the parent widget. The widget parameter is optional and can also be used if option is 0.

This function is called by the layout system. It is used only if PM_LayoutHorizontalSpacing or PM_LayoutVerticalSpacing returns a negative value.

PySide2.QtWidgets.QStyle.pixelMetric(metric[, option=None[, widget=None]])
Parameters
Return type

int

Returns the value of the given pixel metric .

The specified option and widget can be used for calculating the metric. In general, the widget argument is not used. The option can be cast to the appropriate type using the qstyleoption_cast() function. Note that the option may be zero even for PixelMetrics that can make use of it. See the table below for the appropriate option casts:

Pixel Metric

QStyleOption Subclass

PM_SliderControlThickness

QStyleOptionSlider

PM_SliderLength

QStyleOptionSlider

PM_SliderTickmarkOffset

QStyleOptionSlider

PM_SliderSpaceAvailable

QStyleOptionSlider

PM_ScrollBarExtent

QStyleOptionSlider

PM_TabBarTabOverlap

QStyleOptionTab

PM_TabBarTabHSpace

QStyleOptionTab

PM_TabBarTabVSpace

QStyleOptionTab

PM_TabBarBaseHeight

QStyleOptionTab

PM_TabBarBaseOverlap

QStyleOptionTab

Some pixel metrics are called from widgets and some are only called internally by the style. If the metric is not called by a widget, it is the discretion of the style author to make use of it. For some styles, this may not be appropriate.

PySide2.QtWidgets.QStyle.polish(application)
Parameters

applicationQApplication

This is an overloaded function.

Late initialization of the given application object.

PySide2.QtWidgets.QStyle.polish(palette)
Parameters

paletteQPalette

PySide2.QtWidgets.QStyle.polish(widget)
Parameters

widgetQWidget

Initializes the appearance of the given widget .

This function is called for every widget at some point after it has been fully created but just before it is shown for the very first time.

Note that the default implementation does nothing. Reasonable actions in this function might be to call the QWidget::setBackgroundMode() function for the widget. Do not use the function to set, for example, the geometry. Reimplementing this function provides a back-door through which the appearance of a widget can be changed, but with Qt’s style engine it is rarely necessary to implement this function; reimplement drawItemPixmap() , drawItemText() , drawPrimitive() , etc. instead.

The inherits() function may provide enough information to allow class-specific customizations. But because new QStyle subclasses are expected to work reasonably with all current and future widgets, limited use of hard-coded customization is recommended.

See also

unpolish()

PySide2.QtWidgets.QStyle.proxy()
Return type

QStyle

This function returns the current proxy for this style. By default most styles will return themselves. However when a proxy style is in use, it will allow the style to call back into its proxy.

PySide2.QtWidgets.QStyle.sizeFromContents(ct, opt, contentsSize[, w=None])
Parameters
Return type

QSize

Returns the size of the element described by the specified option and type , based on the provided contentsSize .

The option argument is a pointer to a QStyleOption or one of its subclasses. The option can be cast to the appropriate type using the qstyleoption_cast() function. The widget is an optional argument and can contain extra information used for calculating the size.

See the table below for the appropriate option casts:

Contents Type

QStyleOption Subclass

CT_CheckBox

QStyleOptionButton

CT_ComboBox

QStyleOptionComboBox

CT_GroupBox

QStyleOptionGroupBox

CT_HeaderSection

QStyleOptionHeader

CT_ItemViewItem

QStyleOptionViewItem

CT_LineEdit

QStyleOptionFrame

CT_MdiControls

QStyleOptionComplex

CT_Menu

QStyleOption

CT_MenuItem

QStyleOptionMenuItem

CT_MenuBar

QStyleOptionMenuItem

CT_MenuBarItem

QStyleOptionMenuItem

CT_ProgressBar

QStyleOptionProgressBar

CT_PushButton

QStyleOptionButton

CT_RadioButton

QStyleOptionButton

CT_ScrollBar

QStyleOptionSlider

CT_SizeGrip

QStyleOption

CT_Slider

QStyleOptionSlider

CT_SpinBox

QStyleOptionSpinBox

CT_Splitter

QStyleOption

CT_TabBarTab

QStyleOptionTab

CT_TabWidget

QStyleOptionTabWidgetFrame

CT_ToolButton

QStyleOptionToolButton

See also

ContentsType QStyleOption

static PySide2.QtWidgets.QStyle.sliderPositionFromValue(min, max, val, space[, upsideDown=false])
Parameters
  • minint

  • maxint

  • valint

  • spaceint

  • upsideDownbool

Return type

int

Converts the given logicalValue to a pixel position. The min parameter maps to 0, max maps to span and other values are distributed evenly in-between.

This function can handle the entire integer range without overflow, providing that span is less than 4096.

By default, this function assumes that the maximum value is on the right for horizontal items and on the bottom for vertical items. Set the upsideDown parameter to true to reverse this behavior.

static PySide2.QtWidgets.QStyle.sliderValueFromPosition(min, max, pos, space[, upsideDown=false])
Parameters
  • minint

  • maxint

  • posint

  • spaceint

  • upsideDownbool

Return type

int

Converts the given pixel position to a logical value. 0 maps to the min parameter, span maps to max and other values are distributed evenly in-between.

This function can handle the entire integer range without overflow.

By default, this function assumes that the maximum value is on the right for horizontal items and on the bottom for vertical items. Set the upsideDown parameter to true to reverse this behavior.

PySide2.QtWidgets.QStyle.standardIcon(standardIcon[, option=None[, widget=None]])
Parameters
Return type

QIcon

Returns an icon for the given standardIcon .

The standardIcon is a standard pixmap which can follow some existing GUI style or guideline. The option argument can be used to pass extra information required when defining the appropriate icon. The widget argument is optional and can also be used to aid the determination of the icon.

PySide2.QtWidgets.QStyle.standardPalette()
Return type

QPalette

Returns the style’s standard palette.

Note that on systems that support system colors, the style’s standard palette is not used. In particular, the Windows Vista and Mac styles do not use the standard palette, but make use of native theme engines. With these styles, you should not set the palette with setPalette() .

See also

setPalette()

PySide2.QtWidgets.QStyle.standardPixmap(standardPixmap[, opt=None[, widget=None]])
Parameters
Return type

QPixmap

Returns a pixmap for the given standardPixmap .

A standard pixmap is a pixmap that can follow some existing GUI style or guideline. The option argument can be used to pass extra information required when defining the appropriate pixmap. The widget argument is optional and can also be used to aid the determination of the pixmap.

Developers calling should instead call standardIcon() Developers who re-implemented should instead re-implement standardIcon() .

See also

standardIcon()

PySide2.QtWidgets.QStyle.styleHint(stylehint[, opt=None[, widget=None[, returnData=None]]])
Parameters
Return type

int

Returns an integer representing the specified style hint for the given widget described by the provided style option .

returnData is used when the querying widget needs more detailed data than the integer that returns. See the QStyleHintReturn class description for details.

PySide2.QtWidgets.QStyle.subControlRect(cc, opt, sc[, widget=None])
Parameters
Return type

QRect

Returns the rectangle containing the specified subControl of the given complex control (with the style specified by option ). The rectangle is defined in screen coordinates.

The option argument is a pointer to QStyleOptionComplex or one of its subclasses, and can be cast to the appropriate type using the qstyleoption_cast() function. See drawComplexControl() for details. The widget is optional and can contain additional information for the function.

PySide2.QtWidgets.QStyle.subElementRect(subElement, option[, widget=None])
Parameters
Return type

QRect

Returns the sub-area for the given element as described in the provided style option . The returned rectangle is defined in screen coordinates.

The widget argument is optional and can be used to aid determining the area. The QStyleOption object can be cast to the appropriate type using the qstyleoption_cast() function. See the table below for the appropriate option casts:

Sub Element

QStyleOption Subclass

SE_PushButtonContents

QStyleOptionButton

SE_PushButtonFocusRect

QStyleOptionButton

SE_CheckBoxIndicator

QStyleOptionButton

SE_CheckBoxContents

QStyleOptionButton

SE_CheckBoxFocusRect

QStyleOptionButton

SE_RadioButtonIndicator

QStyleOptionButton

SE_RadioButtonContents

QStyleOptionButton

SE_RadioButtonFocusRect

QStyleOptionButton

SE_ComboBoxFocusRect

QStyleOptionComboBox

SE_ProgressBarGroove

QStyleOptionProgressBar

SE_ProgressBarContents

QStyleOptionProgressBar

SE_ProgressBarLabel

QStyleOptionProgressBar

PySide2.QtWidgets.QStyle.unpolish(application)
Parameters

applicationQApplication

This is an overloaded function.

Uninitialize the given application .

PySide2.QtWidgets.QStyle.unpolish(widget)
Parameters

widgetQWidget

Uninitialize the given widget ‘s appearance.

This function is the counterpart to polish() . It is called for every polished widget whenever the style is dynamically changed; the former style has to unpolish its settings before the new style can polish them again.

Note that will only be called if the widget is destroyed. This can cause problems in some cases, e.g, if you remove a widget from the UI, cache it, and then reinsert it after the style has changed; some of Qt’s classes cache their widgets.

See also

polish()

static PySide2.QtWidgets.QStyle.visualAlignment(direction, alignment)
Parameters
  • directionLayoutDirection

  • alignmentAlignment

Return type

Alignment

Transforms an alignment of AlignLeft or AlignRight without AlignAbsolute into AlignLeft or AlignRight with AlignAbsolute according to the layout direction . The other alignment flags are left untouched.

If no horizontal alignment was specified, the function returns the default alignment for the given layout direction .

layoutDirection

static PySide2.QtWidgets.QStyle.visualPos(direction, boundingRect, logicalPos)
Parameters
  • directionLayoutDirection

  • boundingRectQRect

  • logicalPosQPoint

Return type

QPoint

Returns the given logicalPosition converted to screen coordinates based on the specified direction . The boundingRectangle is used when performing the translation.

See also

layoutDirection

static PySide2.QtWidgets.QStyle.visualRect(direction, boundingRect, logicalRect)
Parameters
  • directionLayoutDirection

  • boundingRectQRect

  • logicalRectQRect

Return type

QRect

Returns the given logicalRectangle converted to screen coordinates based on the specified direction . The boundingRectangle is used when performing the translation.

This function is provided to support right-to-left desktops, and is typically used in implementations of the subControlRect() function.

See also

layoutDirection