The QAccessibleSlider class implements the QAccessibleInterface for sliders. More...

#include <rangecontrols.h>

Inheritance diagram for QAccessibleSlider:

Public Types
enum	SliderElements { SliderSelf = 0, PageLeft, Position, PageRight }
	This enum identifies the components of the slider. More...

Public Types inherited from QAccessible
enum	Action { DefaultAction = 0, Press = -1, FirstStandardAction = Press, SetFocus = -2, Increase = -3, Decrease = -4, Accept = -5, Cancel = -6, Select = -7, ClearSelection = -8, RemoveSelection = -9, ExtendSelection = -10, AddToSelection = -11, LastStandardAction = AddToSelection }
	This enum describes the possible types of action that can occur. More...

enum	Event { SoundPlayed = 0x0001, Alert = 0x0002, ForegroundChanged = 0x0003, MenuStart = 0x0004, MenuEnd = 0x0005, PopupMenuStart = 0x0006, PopupMenuEnd = 0x0007, ContextHelpStart = 0x000C, ContextHelpEnd = 0x000D, DragDropStart = 0x000E, DragDropEnd = 0x000F, DialogStart = 0x0010, DialogEnd = 0x0011, ScrollingStart = 0x0012, ScrollingEnd = 0x0013, MenuCommand = 0x0018, ActionChanged = 0x0101, ActiveDescendantChanged = 0x0102, AttributeChanged = 0x0103, DocumentContentChanged = 0x0104, DocumentLoadComplete = 0x0105, DocumentLoadStopped = 0x0106, DocumentReload = 0x0107, HyperlinkEndIndexChanged = 0x0108, HyperlinkNumberOfAnchorsChanged = 0x0109, HyperlinkSelectedLinkChanged = 0x010A, HypertextLinkActivated = 0x010B, HypertextLinkSelected = 0x010C, HyperlinkStartIndexChanged = 0x010D, HypertextChanged = 0x010E, HypertextNLinksChanged = 0x010F, ObjectAttributeChanged = 0x0110, PageChanged = 0x0111, SectionChanged = 0x0112, TableCaptionChanged = 0x0113, TableColumnDescriptionChanged = 0x0114, TableColumnHeaderChanged = 0x0115, TableModelChanged = 0x0116, TableRowDescriptionChanged = 0x0117, TableRowHeaderChanged = 0x0118, TableSummaryChanged = 0x0119, TextAttributeChanged = 0x011A, TextCaretMoved = 0x011B, TextColumnChanged = 0x011D, TextInserted = 0x011E, TextRemoved = 0x011F, TextUpdated = 0x0120, TextSelectionChanged = 0x0121, VisibleDataChanged = 0x0122, ObjectCreated = 0x8000, ObjectDestroyed = 0x8001, ObjectShow = 0x8002, ObjectHide = 0x8003, ObjectReorder = 0x8004, Focus = 0x8005, Selection = 0x8006, SelectionAdd = 0x8007, SelectionRemove = 0x8008, SelectionWithin = 0x8009, StateChanged = 0x800A, LocationChanged = 0x800B, NameChanged = 0x800C, DescriptionChanged = 0x800D, ValueChanged = 0x800E, ParentChanged = 0x800F, HelpChanged = 0x80A0, DefaultActionChanged = 0x80B0, AcceleratorChanged = 0x80C0 }
	This enum type defines accessible event types. More...

typedef QAccessibleInterface (	InterfaceFactory) (const QString &key, QObject *)
	This is a typedef for a pointer to a function with the following signature: More...

enum	Method { ListSupportedMethods = 0, SetCursorPosition = 1, GetCursorPosition = 2, ForegroundColor = 3, BackgroundColor = 4 }
	This enum describes the possible types of methods that can be invoked on an accessible object. More...

enum	RelationFlag { Unrelated = 0x00000000, Self = 0x00000001, Ancestor = 0x00000002, Child = 0x00000004, Descendent = 0x00000008, Sibling = 0x00000010, HierarchyMask = 0x000000ff, Up = 0x00000100, Down = 0x00000200, Left = 0x00000400, Right = 0x00000800, Covers = 0x00001000, Covered = 0x00002000, GeometryMask = 0x0000ff00, FocusChild = 0x00010000, Label = 0x00020000, Labelled = 0x00040000, Controller = 0x00080000, Controlled = 0x00100000, LogicalMask = 0x00ff0000 }
	This enum type defines bit flags that can be combined to indicate the relationship between two accessible objects. More...

enum	Role { NoRole = 0x00000000, TitleBar = 0x00000001, MenuBar = 0x00000002, ScrollBar = 0x00000003, Grip = 0x00000004, Sound = 0x00000005, Cursor = 0x00000006, Caret = 0x00000007, AlertMessage = 0x00000008, Window = 0x00000009, Client = 0x0000000A, PopupMenu = 0x0000000B, MenuItem = 0x0000000C, ToolTip = 0x0000000D, Application = 0x0000000E, Document = 0x0000000F, Pane = 0x00000010, Chart = 0x00000011, Dialog = 0x00000012, Border = 0x00000013, Grouping = 0x00000014, Separator = 0x00000015, ToolBar = 0x00000016, StatusBar = 0x00000017, Table = 0x00000018, ColumnHeader = 0x00000019, RowHeader = 0x0000001A, Column = 0x0000001B, Row = 0x0000001C, Cell = 0x0000001D, Link = 0x0000001E, HelpBalloon = 0x0000001F, Assistant = 0x00000020, List = 0x00000021, ListItem = 0x00000022, Tree = 0x00000023, TreeItem = 0x00000024, PageTab = 0x00000025, PropertyPage = 0x00000026, Indicator = 0x00000027, Graphic = 0x00000028, StaticText = 0x00000029, EditableText = 0x0000002A, PushButton = 0x0000002B, CheckBox = 0x0000002C, RadioButton = 0x0000002D, ComboBox = 0x0000002E, ProgressBar = 0x00000030, Dial = 0x00000031, HotkeyField = 0x00000032, Slider = 0x00000033, SpinBox = 0x00000034, Canvas = 0x00000035, Animation = 0x00000036, Equation = 0x00000037, ButtonDropDown = 0x00000038, ButtonMenu = 0x00000039, ButtonDropGrid = 0x0000003A, Whitespace = 0x0000003B, PageTabList = 0x0000003C, Clock = 0x0000003D, Splitter = 0x0000003E, LayeredPane = 0x0000003F, Terminal = 0x00000040, Desktop = 0x00000041, UserRole = 0x0000ffff }
	This enum defines the role of an accessible object. More...

typedef void(*	RootObjectHandler) (QObject *)
	A function pointer type. More...

enum	StateFlag { Normal = 0x00000000, Unavailable = 0x00000001, Selected = 0x00000002, Focused = 0x00000004, Pressed = 0x00000008, Checked = 0x00000010, Mixed = 0x00000020, ReadOnly = 0x00000040, HotTracked = 0x00000080, DefaultButton = 0x00000100, Expanded = 0x00000200, Collapsed = 0x00000400, Busy = 0x00000800, Marqueed = 0x00002000, Animated = 0x00004000, Invisible = 0x00008000, Offscreen = 0x00010000, Sizeable = 0x00020000, Movable = 0x00040000, SelfVoicing = 0x00080000, Focusable = 0x00100000, Selectable = 0x00200000, Linked = 0x00400000, Traversed = 0x00800000, MultiSelectable = 0x01000000, ExtSelectable = 0x02000000, Protected = 0x20000000, HasPopup = 0x40000000, Modal = 0x80000000, HasInvokeExtension = 0x10000000 }
	This enum type defines bit flags that can be combined to indicate the state of an accessible object. More...

enum	Text { Name = 0, Description, Value, Help, Accelerator, UserText = 0x0000ffff }
	This enum specifies string information that an accessible object returns. More...

typedef void(*	UpdateHandler) (QObject *, int who, Event reason)
	A function pointer type. More...

Public Functions
QString	actionText (int action, Text t, int child) const

int	childCount () const
	Reimplemented Function More...

int	defaultAction (int child) const
	Returns the default action for the given child. More...

	QAccessibleSlider (QWidget *w)
	Constructs a QAccessibleScrollBar object for w. More...

QRect	rect (int child) const
	Reimplemented Function More...

Role	role (int child) const
	Reimplemented Function More...

State	state (int child) const
	Reimplemented Function More...

QString	text (Text t, int child) const
	Reimplemented Function More...

Public Functions inherited from QAccessibleAbstractSlider
QVariant	currentValue ()

QVariant	invokeMethodEx (Method method, int child, const QVariantList &params)

QVariant	maximumValue ()

QVariant	minimumValue ()

	QAccessibleAbstractSlider (QWidget *w, Role r=Slider)

void	setCurrentValue (const QVariant &value)

Public Functions inherited from QAccessibleWidgetEx
int	childAt (int x, int y) const
	Returns the 1-based index of the child that contains the screen coordinates (x, y). More...

bool	doAction (int action, int child, const QVariantList &params)
	Asks the object, or the object's child if child is not 0, to execute action using the parameters, params. More...

int	indexOfChild (const QAccessibleInterface *child) const
	Returns the 1-based index of the object child in this object's children list, or -1 if child is not a child of this object. More...

int	navigate (RelationFlag rel, int entry, QAccessibleInterface **target) const
	Navigates from this object to an object that has a relationship relation to this object, and returns the respective object in target. More...

	QAccessibleWidgetEx (QWidget *o, Role r=Client, const QString &name=QString())

Relation	relationTo (int child, const QAccessibleInterface *other, int otherChild) const
	Returns the relationship between this object's \a child and the \a other object's \a otherChild. More...

Public Functions inherited from QAccessibleObjectEx
bool	isValid () const
	Returns true if all the data necessary to use this interface implementation is valid (e. More...

QObject *	object () const
	Returns a pointer to the QObject this interface implementation provides information for. More...

	QAccessibleObjectEx (QObject *object)

void	setText (Text t, int child, const QString &text)
	Sets the text property t of the object, or of the object's child if child is not 0, to text. More...

int	userActionCount (int child) const
	Returns the number of custom actions of the object, or of the object's child if child is not 0. More...

Public Functions inherited from QAccessibleInterfaceEx
virtual QAccessible2Interface *	interface_cast (QAccessible2::InterfaceType)

virtual QVariant	virtual_hook (const QVariant &data)

Public Functions inherited from QAccessibleInterface
QAccessibleActionInterface *	actionInterface ()

QColor	backgroundColor ()

QAccessibleEditableTextInterface *	editableTextInterface ()

QColor	foregroundColor ()

QAccessibleImageInterface *	imageInterface ()

QVariant	invokeMethod (Method method, int child=0, const QVariantList &params=QVariantList())
	Invokes a method on child with the given parameters params and returns the result of the operation as QVariant. More...

QSet< Method >	supportedMethods ()
	Returns a QSet of QAccessible::Method that are supported by this accessible interface. More...

QAccessibleTable2Interface *	table2Interface ()

QAccessibleTableInterface *	tableInterface ()

QAccessibleTextInterface *	textInterface ()

QAccessibleValueInterface *	valueInterface ()

virtual	~QAccessibleInterface ()
	Destroys the object. More...

Public Functions inherited from QAccessibleValueInterface
QAccessible2Interface *	qAccessibleValueCastHelper ()

virtual	~QAccessibleValueInterface ()

Public Functions inherited from QAccessible2Interface
virtual	~QAccessible2Interface ()

Protected Functions
QSlider *	slider () const
	Returns the slider. More...

Protected Functions inherited from QAccessibleAbstractSlider
QAbstractSlider *	abstractSlider () const

Protected Functions inherited from QAccessibleWidgetEx
void	addControllingSignal (const QString &signal)

QObject *	parentObject () const

void	setAccelerator (const QString &accel)

void	setDescription (const QString &desc)

void	setHelp (const QString &help)

void	setValue (const QString &value)

QWidget *	widget () const

	~QAccessibleWidgetEx ()

Protected Functions inherited from QAccessibleObjectEx
virtual	~QAccessibleObjectEx ()

Additional Inherited Members
Static Public Functions inherited from QAccessible
static void	cleanup ()

static void	initialize ()

static void	installFactory (InterfaceFactory)
	Installs the InterfaceFactory factory. More...

static RootObjectHandler	installRootObjectHandler (RootObjectHandler)
	Installs the given handler as the function to be used by setRootObject(), and returns the previously installed handler. More...

static UpdateHandler	installUpdateHandler (UpdateHandler)
	Installs the given handler as the function to be used by updateAccessibility(), and returns the previously installed handler. More...

static bool	isActive ()
	Returns true if an accessibility implementation has been requested during the runtime of the application; otherwise returns false. More...

static QAccessibleInterface *	queryAccessibleInterface (QObject *)
	If a QAccessibleInterface implementation exists for the given object, this function returns a pointer to the implementation; otherwise it returns 0. More...

static void	removeFactory (InterfaceFactory)
	Removes factory from the list of installed InterfaceFactories. More...

static void	setRootObject (QObject *)
	Sets the root accessible object of this application to object. More...

static void	updateAccessibility (QObject *, int who, Event reason)
	Notifies accessibility clients about a change in object's accessibility information. More...

Detailed Description

The QAccessibleSlider class implements the QAccessibleInterface for sliders.

Warning: This function is not part of the public interface.

Definition at line 180 of file rangecontrols.h.

Enumerations

◆ SliderElements

enum QAccessibleSlider::SliderElements

This enum identifies the components of the slider.

SliderSelf The slider as a whole.
PageLeft The area to the left of the position.
Position The position indicator.
PageRight The area to the right of the position.

Enumerator
SliderSelf
PageLeft
Position
PageRight

Definition at line 185 of file rangecontrols.h.

                         {
         SliderSelf  = 0,
         PageLeft,
         Position,
         PageRight
     };

Constructors and Destructors

◆ QAccessibleSlider()

QAccessibleSlider::QAccessibleSlider ( QWidget * w )

explicit

Constructs a QAccessibleScrollBar object for w.

name is propagated to the QAccessibleWidgetEx constructor.

Definition at line 659 of file rangecontrols.cpp.

 : QAccessibleAbstractSlider(w)
 {
     Q_ASSERT(slider());
     addControllingSignal(QLatin1String("valueChanged(int)"));
 }

Functions

◆ actionText()

QString QAccessibleSlider::actionText	(	int	action,
		Text	t,
		int	child
	)		const

virtual

Warning: This function is not part of the public interface.

Reimplemented from QAccessibleWidgetEx.

Definition at line 807 of file rangecontrols.cpp.

 {
     return QLatin1String("");
 }

◆ childCount()

int QAccessibleSlider::childCount ( ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 707 of file rangecontrols.cpp.

 {
     return PageRight;
 }

◆ defaultAction()

int QAccessibleSlider::defaultAction ( int child ) const

Returns the default action for the given child.

The base class implementation returns 0.

Definition at line 791 of file rangecontrols.cpp.

 {
 /*
     switch (child) {
     case SliderSelf:
         return SetFocus;
     case PageLeft:
         return Press;
     case PageRight:
         return Press;
     }
 */
     return 0;
 }

◆ rect()

QRect QAccessibleSlider::rect ( int child ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 673 of file rangecontrols.cpp.

 {
     QRect rect;
     if (!slider()->isVisible())
         return rect;
     const QStyleOptionSlider option = qt_qsliderStyleOption(slider());
     QRect srect = slider()->style()->subControlRect(QStyle::CC_Slider, &option,
                                                     QStyle::SC_SliderHandle, slider());
 
     switch (child) {
     case PageLeft:
         if (slider()->orientation() == Qt::Vertical)
             rect = QRect(0, 0, slider()->width(), srect.y());
         else
             rect = QRect(0, 0, srect.x(), slider()->height());
         break;
     case Position:
         rect = srect;
         break;
     case PageRight:
         if (slider()->orientation() == Qt::Vertical)
             rect = QRect(0, srect.y() + srect.height(), slider()->width(), slider()->height()- srect.y() - srect.height());
         else
             rect = QRect(srect.x() + srect.width(), 0, slider()->width() - srect.x() - srect.width(), slider()->height());
         break;
     default:
         return QAccessibleAbstractSlider::rect(child);
     }
 
     QPoint tp = slider()->mapToGlobal(QPoint(0,0));
     return QRect(tp.x() + rect.x(), tp.y() + rect.y(), rect.width(), rect.height());
 }

◆ role()

QAccessible::Role QAccessibleSlider::role ( int child ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 739 of file rangecontrols.cpp.

 {
     switch (child) {
     case PageLeft:
     case PageRight:
         return PushButton;
     case Position:
         return Indicator;
     default:
         return Slider;
     }
 }

◆ slider()

QSlider * QAccessibleSlider::slider ( ) const

protected

Returns the slider.

Definition at line 667 of file rangecontrols.cpp.

Referenced by QAccessibleSlider(), rect(), state(), and text().

 {
     return qobject_cast<QSlider*>(object());
 }

◆ state()

QAccessible::State QAccessibleSlider::state ( int child ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 753 of file rangecontrols.cpp.

 {
     const State parentState = QAccessibleAbstractSlider::state(0);
 
     if (child == 0)
         return parentState;
 
     // Inherit the Invisible state from parent.
     State state = parentState & QAccessible::Invisible;
 
     // Disable left/right if we are at the minimum/maximum.
     const QSlider * const slider = QAccessibleSlider::slider();
     switch (child) {
     case PageLeft:
         if (slider->value() <= slider->minimum())
             state |= Unavailable;
         break;
     case PageRight:
         if (slider->value() >= slider->maximum())
             state |= Unavailable;
         break;
     case Position:
     default:
         break;
     }
 
     return state;
 }

◆ text()

QString QAccessibleSlider::text	(	Text	t,
		int	child
	)		const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 713 of file rangecontrols.cpp.

 {
     switch (t) {
     case Value:
         if (!child || child == 2)
             return QString::number(slider()->value());
         return QString();
     case Name:
         switch (child) {
         case PageLeft:
             return slider()->orientation() == Qt::Horizontal ?
                 QSlider::tr("Page left") : QSlider::tr("Page up");
         case Position:
             return QSlider::tr("Position");
         case PageRight:
             return slider()->orientation() == Qt::Horizontal ?
                 QSlider::tr("Page right") : QSlider::tr("Page down");
         }
         break;
     default:
         break;
     }
     return QAccessibleAbstractSlider::text(t, child);
 }

The documentation for this class was generated from the following files:

/src/plugins/accessible/widgets/rangecontrols.h
/src/plugins/accessible/widgets/rangecontrols.cpp

Public Types

Public Functions

Protected Functions

Additional Inherited Members

Detailed Description

Enumerations

◆ SliderElements

Constructors and Destructors

◆ QAccessibleSlider()

Functions

◆ actionText()

◆ childCount()

◆ defaultAction()

◆ rect()

◆ role()

◆ slider()

◆ state()

◆ text()