The QAccessibleComboBox class implements the QAccessibleInterface for editable and read-only combo boxes. More...

#include <complexwidgets.h>

Inheritance diagram for QAccessibleComboBox:

Public Types
enum	ComboBoxElements { ComboBoxSelf = 0, CurrentText, OpenList, PopupList }

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
	Returns the text property t of the action action supported by the object, or of the object's child if child is not 0. More...

int	childAt (int x, int y) const
	Reimplemented Function More...

int	childCount () const
	Reimplemented Function More...

bool	doAction (int action, int child, const QVariantList &params)
	Reimplemented Function More...

int	indexOfChild (const QAccessibleInterface *child) const
	Reimplemented Function More...

int	navigate (RelationFlag rel, int entry, QAccessibleInterface **target) const
	Reimplemented Function More...

	QAccessibleComboBox (QWidget *w)
	Constructs a QAccessibleComboBox 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 QAccessibleWidgetEx
QVariant	invokeMethodEx (Method method, int child, const QVariantList &params)

	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...

Protected Functions
QComboBox *	comboBox () const
	Returns the combobox. More...

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 QAccessibleComboBox class implements the QAccessibleInterface for editable and read-only combo boxes.

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

Definition at line 262 of file complexwidgets.h.

Enumerations

◆ ComboBoxElements

enum QAccessibleComboBox::ComboBoxElements

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

ComboBoxSelf
CurrentText
OpenList
PopupList

Enumerator
ComboBoxSelf
CurrentText
OpenList
PopupList

Definition at line 268 of file complexwidgets.h.

                           {
         ComboBoxSelf        = 0,
         CurrentText,
         OpenList,
         PopupList
     };

Constructors and Destructors

◆ QAccessibleComboBox()

QAccessibleComboBox::QAccessibleComboBox ( QWidget * w )

explicit

Constructs a QAccessibleComboBox object for w.

Definition at line 1739 of file complexwidgets.cpp.

 : QAccessibleWidgetEx(w, ComboBox)
 {
     Q_ASSERT(comboBox());
 }

Functions

◆ actionText()

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

virtual

Returns the text property t of the action action supported by the object, or of the object's child if child is not 0.

See also: text(), userActionCount()

Reimplemented from QAccessibleWidgetEx.

Definition at line 1920 of file complexwidgets.cpp.

 {
     QString text;
     if (child == 2 && t == Name && (action == DefaultAction || action == Press))
         text = comboBox()->view()->isVisible() ? QComboBox::tr("Close") : QComboBox::tr("Open");
     return text;
 }

◆ childAt()

int QAccessibleComboBox::childAt	(	int	x,
		int	y
	)		const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1824 of file complexwidgets.cpp.

 {
     if (!comboBox()->isVisible())
         return -1;
     QPoint gp = widget()->mapToGlobal(QPoint(0, 0));
     if (!QRect(gp.x(), gp.y(), widget()->width(), widget()->height()).contains(x, y))
         return -1;
 
     // a complex control
     for (int i = 1; i < PopupList; ++i) {
         if (rect(i).contains(x, y))
             return i;
     }
     return 0;
 }

◆ childCount()

int QAccessibleComboBox::childCount ( ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1818 of file complexwidgets.cpp.

 {
     return comboBox()->view() ? PopupList : OpenList;
 }

◆ comboBox()

QComboBox * QAccessibleComboBox::comboBox ( ) const

protected

Returns the combobox.

Definition at line 1748 of file complexwidgets.cpp.

Referenced by actionText(), childAt(), childCount(), doAction(), indexOfChild(), navigate(), QAccessibleComboBox(), rect(), role(), and text().

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

◆ doAction()

bool QAccessibleComboBox::doAction	(	int	action,
		int	child,
		const QVariantList &	params
	)

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1907 of file complexwidgets.cpp.

 {
     if (child == 2 && (action == DefaultAction || action == Press)) {
         if (comboBox()->view()->isVisible()) {
             comboBox()->hidePopup();
         } else {
             comboBox()->showPopup();
         }
         return true;
     }
     return false;
 }

◆ indexOfChild()

int QAccessibleComboBox::indexOfChild ( const QAccessibleInterface * child ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1841 of file complexwidgets.cpp.

 {
     QObject *viewParent = comboBox()->view() ? comboBox()->view()->parentWidget() : 0;
     if (child->object() == viewParent)
         return PopupList;
     return -1;
 }

◆ navigate()

int QAccessibleComboBox::navigate	(	RelationFlag	rel,
		int	entry,
		QAccessibleInterface **	target
	)		const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1787 of file complexwidgets.cpp.

 {
     *target = 0;
     if (entry > ComboBoxSelf) switch (rel) {
     case Child:
         if (entry == CurrentText && comboBox()->isEditable()) {
             *target = QAccessible::queryAccessibleInterface(comboBox()->lineEdit());
             return *target ? 0 : -1;
         } else if (entry < PopupList) {
             return entry;
         } else if (entry == PopupList) {
             QAbstractItemView *view = comboBox()->view();
             QWidget *parent = view ? view->parentWidget() : 0;
             *target = QAccessible::queryAccessibleInterface(parent);
             return *target ? 0 : -1;
         }
     case QAccessible::Left:
         return entry == OpenList ? CurrentText : -1;
     case QAccessible::Right:
         return entry == CurrentText ? OpenList : -1;
     case QAccessible::Up:
         return -1;
     case QAccessible::Down:
         return -1;
     default:
         break;
     }
     return QAccessibleWidgetEx::navigate(rel, entry, target);
 }

◆ rect()

QRect QAccessibleComboBox::rect ( int child ) const

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1754 of file complexwidgets.cpp.

Referenced by childAt().

 {
     QPoint tp;
     QStyle::SubControl sc;
     QRect r;
     switch (child) {
     case CurrentText:
         if (comboBox()->isEditable()) {
             tp = comboBox()->lineEdit()->mapToGlobal(QPoint(0,0));
             r = comboBox()->lineEdit()->rect();
             sc = QStyle::SC_None;
         } else  {
             tp = comboBox()->mapToGlobal(QPoint(0,0));
             sc = QStyle::SC_ComboBoxEditField;
         }
         break;
     case OpenList:
         tp = comboBox()->mapToGlobal(QPoint(0,0));
         sc = QStyle::SC_ComboBoxArrow;
         break;
     default:
         return QAccessibleWidgetEx::rect(child);
     }
 
     if (sc != QStyle::SC_None) {
         QStyleOptionComboBox option;
         option.initFrom(comboBox());
         r = comboBox()->style()->subControlRect(QStyle::CC_ComboBox, &option, sc, comboBox());
     }
     return QRect(tp.x() + r.x(), tp.y() + r.y(), r.width(), r.height());
 }

◆ role()

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

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1884 of file complexwidgets.cpp.

 {
     switch (child) {
     case CurrentText:
         if (comboBox()->isEditable())
             return EditableText;
         return StaticText;
     case OpenList:
         return PushButton;
     case PopupList:
         return List;
     default:
         return ComboBox;
     }
 }

◆ state()

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

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1901 of file complexwidgets.cpp.

 {
     return QAccessibleWidgetEx::state(0);
 }

◆ text()

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

virtual

Reimplemented Function

Reimplemented from QAccessibleWidgetEx.

Definition at line 1850 of file complexwidgets.cpp.

Referenced by actionText().

 {
     QString str;
 
     switch (t) {
     case Name:
 #ifndef Q_WS_X11 // on Linux we use relations for this, name is text (fall through to Value)
         if (child == OpenList)
             str = QComboBox::tr("Open");
         else
             str = QAccessibleWidgetEx::text(t, 0);
         break;
 #endif
     case Value:
         if (comboBox()->isEditable())
             str = comboBox()->lineEdit()->text();
         else
             str = comboBox()->currentText();
         break;
 #ifndef QT_NO_SHORTCUT
     case Accelerator:
         if (child == OpenList)
             str = (QString)QKeySequence(Qt::Key_Down);
         break;
 #endif
     default:
         break;
     }
     if (str.isEmpty())
         str = QAccessibleWidgetEx::text(t, 0);
     return str;
 }

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

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

Public Types

Public Functions

Protected Functions

Additional Inherited Members

Detailed Description

Enumerations

◆ ComboBoxElements

Constructors and Destructors

◆ QAccessibleComboBox()

Functions

◆ actionText()

◆ childAt()

◆ childCount()

◆ comboBox()

◆ doAction()

◆ indexOfChild()

◆ navigate()

◆ rect()

◆ role()

◆ state()

◆ text()