QAccessibleItemView Class Reference

#include <complexwidgets.h>

Inheritance diagram for QAccessibleItemView:

Public Functions
QAccessibleInterface *	accessibleAt (int row, int column)
QAccessibleInterface *	caption ()
void	cellAtIndex (int index, int *row, int *column, int *rowSpan, int *columnSpan, bool *isSelected)
int	childAt (int x, int y) const
	Returns the 1-based index of the child that contains the screen coordinates (x, y). More...
int	childCount () const
	Returns the number of children that belong to this object. More...
QModelIndex	childIndex (int child) const
int	childIndex (int rowIndex, int columnIndex)
int	columnCount ()
QString	columnDescription (int column)
QAccessibleInterface *	columnHeader ()
int	columnIndex (int childIndex)
int	columnSpan (int row, int column)
int	entryFromIndex (const QModelIndex &index) const
QHeaderView *	horizontalHeader () const
int	indexOfChild (const QAccessibleInterface *iface) 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...
bool	isColumnSelected (int column)
bool	isRowSelected (int row)
bool	isSelected (int row, int column)
bool	isValid () const
	Returns true if all the data necessary to use this interface implementation is valid (e. More...
bool	isValidChildRole (QAccessible::Role role) const
int	navigate (RelationFlag relation, int index, QAccessibleInterface **iface) const
	Navigates from this object to an object that has a relationship relation to this object, and returns the respective object in target. More...
QObject *	object () const
	Returns a pointer to the QObject this interface implementation provides information for. More...
	QAccessibleItemView (QWidget *w)
QRect	rect (int child) const
	Returns the geometry of the object, or of the object's child if child is not 0. More...
Role	role (int child) const
	Returns the role of the object, or of the object's child if child is not 0. More...
int	rowCount ()
QString	rowDescription (int row)
QAccessibleInterface *	rowHeader ()
int	rowIndex (int childIndex)
int	rowSpan (int row, int column)
void	selectColumn (int column)
int	selectedColumnCount ()
int	selectedColumns (int maxColumns, QList< int > *columns)
int	selectedRowCount ()
int	selectedRows (int maxRows, QList< int > *rows)
void	selectRow (int row)
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...
State	state (int child) const
	Returns the current state of the object, or of the object's child if child is not 0. More...
QAccessibleInterface *	summary ()
QString	text (Text t, int child) const
	Returns the value of the text property t of the object, or of the object's child if child is not 0. More...
void	unselectColumn (int column)
void	unselectRow (int row)
QHeaderView *	verticalHeader () const
Public Functions inherited from QAccessibleAbstractScrollArea
QAbstractScrollArea *	abstractScrollArea () const
QVariant	invokeMethodEx (QAccessible::Method method, int child, const QVariantList &params)
	QAccessibleAbstractScrollArea (QWidget *widget)
Public Functions inherited from QAccessibleWidgetEx
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...
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...
	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
	QAccessibleObjectEx (QObject *object)
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 QAccessibleTableInterface
QAccessible2Interface *	qAccessibleTableCastHelper ()
Public Functions inherited from QAccessible2Interface
virtual	~QAccessible2Interface ()

Protected Functions
QModelIndex	index (int row, int column) const
QAbstractItemView *	itemView () 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 ()

Private Functions
bool	atViewport () const
QAccessible::Role	expectedRoleOfChildren () const

Properties
bool	atVP

Additional Inherited Members
Public Types inherited from QAccessibleAbstractScrollArea
enum	AbstractScrollAreaElement {   Self = 0, Viewport, HorizontalContainer, VerticalContainer,   CornerWidget, Undefined }
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...
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

Definition at line 163 of file complexwidgets.h.

Constructors and Destructors

QAccessibleItemView()

QAccessibleItemView::QAccessibleItemView ( QWidget *  w )

explicit

Definition at line 806 of file complexwidgets.cpp.

Referenced by navigate().

    : QAccessibleAbstractScrollArea(w->objectName() == QLatin1String("qt_scrollarea_viewport") ? w->parentWidget() : w)
{
    atVP = w->objectName() == QLatin1String("qt_scrollarea_viewport");

}

Functions

accessibleAt()

QAccessibleInterface * QAccessibleItemView::accessibleAt ( int  row, int  column  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1161 of file complexwidgets.cpp.

{
    QWidget *indexWidget = itemView()->indexWidget(index(row, column));
    return QAccessible::queryAccessibleInterface(indexWidget);
}

atViewport()

bool QAccessibleItemView::atViewport ( ) const

inlineprivate

Definition at line 221 of file complexwidgets.h.

Referenced by childAt(), childCount(), childIndex(), indexOfChild(), isValid(), isValidChildRole(), navigate(), object(), rect(), role(), setText(), state(), and text().

                                   {
        return atVP;
    };

caption()

QAccessibleInterface * QAccessibleItemView::caption ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1168 of file complexwidgets.cpp.

{
    return 0;
}

cellAtIndex()

void QAccessibleItemView::cellAtIndex ( int  index, int *  row, int *  column, int *  rowSpan, int *  columnSpan, bool *  isSelected  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1334 of file complexwidgets.cpp.

{
    *row = rowIndex(index);
    *column = columnIndex(index);
    *rSpan = rowSpan(*row, *column);
    *cSpan = columnSpan(*row, *column);
    *isSelect = isSelected(*row, *column);
}

childAt()

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

virtual

Returns the 1-based index of the child that contains the screen coordinates (x, y).

This function returns 0 if the point is positioned on the object itself. If the tested point is outside the boundaries of the object this function returns -1.

This function is only relyable for visible objects (invisible object might not be laid out correctly).

All visual objects provide this information.

See also

rect()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 1052 of file complexwidgets.cpp.

{
    if (atViewport()) {
        QPoint p(x, y);
        for (int i = childCount(); i >= 0; --i) {
            if (rect(i).contains(p))
                return i;
        }
        return -1;
    } else {
        return QAccessibleAbstractScrollArea::childAt(x, y);
    }
}

childCount()

int QAccessibleItemView::childCount ( ) const

virtual

Returns the number of children that belong to this object.

A child can provide accessibility information on its own (e.g. a child widget), or be a sub-element of this accessible object.

All objects provide this information.

See also

indexOfChild()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 944 of file complexwidgets.cpp.

Referenced by childAt().

{
    if (atViewport()) {
        if (itemView()->model() == 0)
            return 0;
        QAbstractItemModel *m = itemView()->model();
        QModelIndex idx = m->index(0,0);
        if (!idx.isValid())
            return 0;
        ModelIndexIterator it(itemView());
        int count = 1;
        while (it.next()) {
            ++count;
        }
        if (horizontalHeader())
            ++count;

        return count;
    } else {
        return QAccessibleAbstractScrollArea::childCount();
    }
}

childIndex() [1/2]

QModelIndex QAccessibleItemView::childIndex

(

int

child

)

const

Definition at line 915 of file complexwidgets.cpp.

Referenced by navigate(), setText(), state(), and text().

{
    if (!atViewport())
        return QModelIndex();
    ModelIndexIterator it(itemView());
    it.next(child - 1);
    return it.current();
}

childIndex() [2/2]

int QAccessibleItemView::childIndex ( int  rowIndex, int  columnIndex  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1174 of file complexwidgets.cpp.

{
    return rowIndex * itemView()->model()->columnCount() + columnIndex;
}

columnCount()

int QAccessibleItemView::columnCount ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1214 of file complexwidgets.cpp.

Referenced by columnIndex(), and rowIndex().

{
    return itemView()->model()->columnCount();
}

columnDescription()

QString QAccessibleItemView::columnDescription ( int  column )

virtual

Implements QAccessibleTableInterface.

Definition at line 1180 of file complexwidgets.cpp.

{
    return itemView()->model()->headerData(column, Qt::Horizontal).toString();
}

columnHeader()

QAccessibleInterface * QAccessibleItemView::columnHeader ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1192 of file complexwidgets.cpp.

{
#ifndef QT_NO_TREEVIEW
    if (QTreeView *tree = qobject_cast<QTreeView *>(itemView()))
        return QAccessible::queryAccessibleInterface(tree->header());
#endif
#ifndef QT_NO_TABLEVIEW
    if (QTableView *table = qobject_cast<QTableView *>(itemView()))
        return QAccessible::queryAccessibleInterface(table->horizontalHeader());
#endif
    return 0;
}

columnIndex()

int QAccessibleItemView::columnIndex ( int  childIndex )

virtual

Implements QAccessibleTableInterface.

Definition at line 1205 of file complexwidgets.cpp.

Referenced by cellAtIndex(), and childIndex().

{
    int columnCount = itemView()->model()->columnCount();
    if (!columnCount)
        return 0;

    return childIndex % columnCount;
}

columnSpan()

int QAccessibleItemView::columnSpan ( int  row, int  column  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1186 of file complexwidgets.cpp.

Referenced by cellAtIndex().

{
    return 1;
}

entryFromIndex()

int QAccessibleItemView::entryFromIndex

(

const QModelIndex &

index

)

const

Definition at line 924 of file complexwidgets.cpp.

Referenced by indexOfChild().

{
    int entry = -1;
    if (false) {
#ifndef QT_NO_TREEVIEW
    } else if (QTreeView *tree = qobject_cast<QTreeView*>(itemView())) {
        entry = tree->visualIndex(index) + 1;
#endif
#ifndef QT_NO_LISTVIEW
    } else if (QListView *list = qobject_cast<QListView*>(itemView())) {
        entry = list->visualIndex(index) + 1;
#endif
#ifndef QT_NO_TABLEVIEW
    } else if (QTableView *table = qobject_cast<QTableView*>(itemView())) {
        entry = table->visualIndex(index) + 1;
#endif
    }
    return entry;
}

expectedRoleOfChildren()

QAccessible::Role QAccessibleItemView::expectedRoleOfChildren ( ) const

private

horizontalHeader()

QHeaderView * QAccessibleItemView::horizontalHeader

(

)

const

Definition at line 814 of file complexwidgets.cpp.

Referenced by childCount(), indexOfChild(), navigate(), rect(), and state().

{
    QHeaderView *header = 0;
    if (false) {
#ifndef QT_NO_TABLEVIEW
    } else if (const QTableView *tv = qobject_cast<const QTableView*>(itemView())) {
        header = tv->horizontalHeader();
#endif
#ifndef QT_NO_TREEVIEW
    } else if (const QTreeView *tv = qobject_cast<const QTreeView*>(itemView())) {
        header = tv->header();
#endif
    }
    return header;
}

index()

QModelIndex QAccessibleItemView::index ( int  row, int  column  ) const

protected

Definition at line 1156 of file complexwidgets.cpp.

Referenced by accessibleAt(), isSelected(), navigate(), selectColumn(), selectRow(), unselectColumn(), and unselectRow().

{
    return itemView()->model()->index(row, column);
}

indexOfChild()

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

virtual

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.

0 is not a possible return value.

All objects provide this information about their children.

See also

childCount()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 888 of file complexwidgets.cpp.

{
    if (atViewport()) {
        if (!iface || !isValidChildRole(iface->role(0)))
            return -1;

        int entry = -1;
        // ### This will fail if a row is hidden.
        const QAccessibleItemRow *ifRow = static_cast<const QAccessibleItemRow *>(iface);
        if (ifRow->horizontalHeader())
            return 1;

        QModelIndex idx = ifRow->row;
        if (!idx.isValid())
            return -1;

        entry = entryFromIndex(idx);
        if (horizontalHeader())
            ++entry;

        return entry;

    } else {
        return QAccessibleAbstractScrollArea::indexOfChild(iface);
    }
}

isColumnSelected()

bool QAccessibleItemView::isColumnSelected ( int  column )

virtual

Implements QAccessibleTableInterface.

Definition at line 1295 of file complexwidgets.cpp.

{
    return itemView()->selectionModel()->isColumnSelected(column, QModelIndex());
}

isRowSelected()

bool QAccessibleItemView::isRowSelected ( int  row )

virtual

Implements QAccessibleTableInterface.

Definition at line 1300 of file complexwidgets.cpp.

{
    return itemView()->selectionModel()->isRowSelected(row, QModelIndex());
}

isSelected()

bool QAccessibleItemView::isSelected ( int  row, int  column  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1305 of file complexwidgets.cpp.

Referenced by cellAtIndex().

{
    return itemView()->selectionModel()->isSelected(index(row, column));
}

isValid()

bool QAccessibleItemView::isValid ( ) const

virtual

Returns true if all the data necessary to use this interface implementation is valid (e.

g. all pointers are non-null); otherwise returns false.

See also

object()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 1114 of file complexwidgets.cpp.

{
    if (atViewport())
        return QAccessibleWidgetEx::isValid();
    else
        return QAccessibleAbstractScrollArea::isValid();
}

isValidChildRole()

bool QAccessibleItemView::isValidChildRole

(

QAccessible::Role

role

)

const

Definition at line 843 of file complexwidgets.cpp.

Referenced by indexOfChild().

{
    if (atViewport()) {
        if (false) {
#ifndef QT_NO_TREEVIEW
        } else if (qobject_cast<const QTreeView*>(itemView())) {
            return (role == TreeItem || role == Row);
#endif
#ifndef QT_NO_LISTVIEW
        } else if (qobject_cast<const QListView*>(itemView())) {
            return (role == ListItem);
#endif
        }
        // TableView
        return role == Row;
    } else {
        if (false) {
#ifndef QT_NO_TREEVIEW
        } else if (qobject_cast<const QTreeView*>(itemView())) {
            return (role == Tree);
#endif
#ifndef QT_NO_LISTVIEW
        } else if (qobject_cast<const QListView*>(itemView())) {
            return (role == List);
#endif
        }
        // TableView
        return (role == Table);
    }
}

itemView()

QAbstractItemView * QAccessibleItemView::itemView ( ) const

protected

Definition at line 883 of file complexwidgets.cpp.

Referenced by accessibleAt(), childCount(), childIndex(), columnCount(), columnDescription(), columnHeader(), columnIndex(), entryFromIndex(), horizontalHeader(), index(), isColumnSelected(), isRowSelected(), isSelected(), isValidChildRole(), navigate(), rect(), role(), rowCount(), rowDescription(), rowHeader(), rowIndex(), selectColumn(), selectedColumnCount(), selectedColumns(), selectedRowCount(), selectedRows(), selectRow(), setText(), state(), text(), unselectColumn(), unselectRow(), and verticalHeader().

{
    return qobject_cast<QAbstractItemView *>(QAccessibleAbstractScrollArea::object());
}

navigate()

int QAccessibleItemView::navigate ( RelationFlag  relation, int  index, QAccessibleInterface **  iface  ) const

virtual

Navigates from this object to an object that has a relationship relation to this object, and returns the respective object in target.

It is the caller's responsibility to delete *target after use.

If an object is found, target is set to point to the object, and the index of the child of target is returned. The return value is 0 if target itself is the requested object. target is set to null if this object is the target object (i.e. the requested object is a handled by this object).

If no object is found target is set to null, and the return value is -1.

The entry parameter has two different meanings:

• Hierarchical and Logical relationships – if multiple objects with the requested relationship exist entry specifies which one to return. entry is 1-based, e.g. use 1 to get the first (and possibly only) object with the requested relationship.

  The following code demonstrates how to use this function to navigate to the first child of an object:

  QAccessibleInterface *child = 0;
  int targetChild = object->navigate(Accessible::Child, 1, &child);
  if (child) {
      // ...
      delete child;
  }

• Geometric relationships – the index of the child from which to start navigating in the specified direction. entry can be 0 to navigate to a sibling of this object, or non-null to navigate within contained children that don't provide their own accessible information.

Note that the Descendent value for relation is not supported.

All objects support navigation.

See also

relationTo(), childCount()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 1122 of file complexwidgets.cpp.

Referenced by QAccessibleItemRow::navigate(), and rect().

{
    if (atViewport()) {
        if (relation == Ancestor && index == 1) {
            *iface = new QAccessibleItemView(itemView());
            return 0;
        } else if (relation == Child && index >= 1) {
            if (horizontalHeader()) {
                if (index == 1) {
                    *iface = new QAccessibleItemRow(itemView(), QModelIndex(), true);
                    return 0;
                }
                --index;
            }

            //###JAS hidden rows..
            QModelIndex idx = childIndex(index);
            if (idx.isValid()) {
                *iface = new QAccessibleItemRow(itemView(), idx);
                return 0;
            }
        } else if (relation == Sibling && index >= 1) {
            QAccessibleInterface *parent = new QAccessibleItemView(itemView());
            return parent->navigate(Child, index, iface);
        }
        *iface = 0;
        return -1;
    } else {
        return QAccessibleAbstractScrollArea::navigate(relation, index, iface);
    }
}

object()

QObject * QAccessibleItemView::object ( ) const

virtual

Returns a pointer to the QObject this interface implementation provides information for.

See also

isValid()

Reimplemented from QAccessibleObjectEx.

Definition at line 874 of file complexwidgets.cpp.

{
    QObject *view = QAccessibleAbstractScrollArea::object();
    Q_ASSERT(qobject_cast<const QAbstractItemView *>(view));
    if (atViewport())
        view = qobject_cast<const QAbstractItemView *>(view)->viewport();
    return view;
}

rect()

QRect QAccessibleItemView::rect ( int  child ) const

virtual

Returns the geometry of the object, or of the object's child if child is not 0.

The geometry is in screen coordinates.

This function is only reliable for visible objects (invisible objects might not be laid out correctly).

All visual objects provide this information.

See also

childAt()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 999 of file complexwidgets.cpp.

Referenced by childAt().

{
    if (atViewport()) {
        QRect r;
        if (!child) {
            // Make sure that the rect *include* the vertical and horizontal headers, while
            // not including the potential vertical and horizontal scrollbars.
            QAbstractItemView *w = itemView();

            int vscrollWidth = 0;
            const QScrollBar *sb = w->verticalScrollBar();
            if (sb && sb->isVisible())
                vscrollWidth = sb->width();

            int hscrollHeight = 0;
            sb = w->horizontalScrollBar();
            if (sb && sb->isVisible())
                hscrollHeight = sb->height();

            QPoint globalPos = w->mapToGlobal(QPoint(0,0));
            r = w->rect().translated(globalPos);
            if (w->isRightToLeft()) {
                r.adjust(vscrollWidth, 0, 0, -hscrollHeight);
            } else {
                r.adjust(0, 0, -vscrollWidth, -hscrollHeight);
            }
        } else {
            QAccessibleInterface *iface = 0;
            if (navigate(Child, child, &iface) == 0) {
                r = iface->rect(0);
                delete iface;
            }
        }
        return r;
    } else {
        QRect r = QAccessibleAbstractScrollArea::rect(child);
        if (child == 1) {
            // include the potential vertical and horizontal headers

            const QHeaderView *header = verticalHeader();
            int headerWidth = (header && header->isVisible()) ? header->width() : 0;
            header = horizontalHeader();
            int headerHeight= (header && header->isVisible()) ? header->height() : 0;
            if (itemView()->isRightToLeft()) {
                r.adjust(0, -headerHeight, headerWidth, 0);
            } else {
                r.adjust(-headerWidth, -headerHeight, 0, 0);
            }
        }
        return r;
    }
}

role()

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

virtual

Returns the role of the object, or of the object's child if child is not 0.

The role of an object is usually static.

All accessible objects have a role.

See also

text(), state()

Reimplemented from QAccessibleWidgetEx.

Definition at line 1066 of file complexwidgets.cpp.

{
    if ((!atViewport() && child) || (atViewport() && child == 0)) {
        QAbstractItemView *view = itemView();
#ifndef QT_NO_TABLEVIEW
        if (qobject_cast<QTableView *>(view))
            return Table;
#endif
#ifndef QT_NO_LISTVIEW
        if (qobject_cast<QListView *>(view))
            return List;
#endif
        return Tree;
    }
    if (atViewport()) {
        if (child)
            return Row;
    }

    return QAccessibleAbstractScrollArea::role(child);
}

rowCount()

int QAccessibleItemView::rowCount ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1219 of file complexwidgets.cpp.

{
    return itemView()->model()->rowCount();
}

rowDescription()

QString QAccessibleItemView::rowDescription ( int  row )

virtual

Implements QAccessibleTableInterface.

Definition at line 1234 of file complexwidgets.cpp.

{
    return itemView()->model()->headerData(row, Qt::Vertical).toString();
}

rowHeader()

QAccessibleInterface * QAccessibleItemView::rowHeader ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1245 of file complexwidgets.cpp.

{
#ifndef QT_NO_TABLEVIEW
    if (QTableView *table = qobject_cast<QTableView *>(itemView()))
        return QAccessible::queryAccessibleInterface(table->verticalHeader());
#endif
    return 0;
}

rowIndex()

int QAccessibleItemView::rowIndex ( int  childIndex )

virtual

Implements QAccessibleTableInterface.

Definition at line 1254 of file complexwidgets.cpp.

Referenced by cellAtIndex().

{
    int columnCount = itemView()->model()->columnCount();
    if (!columnCount)
        return 0;

    return int(childIndex / columnCount);
}

rowSpan()

int QAccessibleItemView::rowSpan ( int  row, int  column  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1240 of file complexwidgets.cpp.

Referenced by cellAtIndex().

{
    return 1;
}

selectColumn()

void QAccessibleItemView::selectColumn ( int  column )

virtual

Implements QAccessibleTableInterface.

Definition at line 1316 of file complexwidgets.cpp.

{
    QItemSelectionModel *s = itemView()->selectionModel();
    s->select(index(0, column), QItemSelectionModel::Select | QItemSelectionModel::Columns);
}

selectedColumnCount()

int QAccessibleItemView::selectedColumnCount ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1224 of file complexwidgets.cpp.

{
    return itemView()->selectionModel()->selectedColumns().count();
}

selectedColumns()

int QAccessibleItemView::selectedColumns ( int  maxColumns, QList< int > *  columns  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1276 of file complexwidgets.cpp.

{
    Q_ASSERT(columns);

    const QModelIndexList selColumns = itemView()->selectionModel()->selectedColumns();
    int maxCount = qMin(selColumns.count(), maxColumns);

    for (int i = 0; i < maxCount; ++i)
        columns->append(selColumns.at(i).row());

    return maxCount;
}

selectedRowCount()

int QAccessibleItemView::selectedRowCount ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1229 of file complexwidgets.cpp.

{
    return itemView()->selectionModel()->selectedRows().count();
}

selectedRows()

int QAccessibleItemView::selectedRows ( int  maxRows, QList< int > *  rows  )

virtual

Implements QAccessibleTableInterface.

Definition at line 1263 of file complexwidgets.cpp.

{
    Q_ASSERT(rows);

    const QModelIndexList selRows = itemView()->selectionModel()->selectedRows();
    int maxCount = qMin(selRows.count(), maxRows);

    for (int i = 0; i < maxCount; ++i)
        rows->append(selRows.at(i).row());

    return maxCount;
}

selectRow()

void QAccessibleItemView::selectRow ( int  row )

virtual

Implements QAccessibleTableInterface.

Definition at line 1310 of file complexwidgets.cpp.

{
    QItemSelectionModel *s = itemView()->selectionModel();
    s->select(index(row, 0), QItemSelectionModel::Select | QItemSelectionModel::Rows);
}

setText()

void QAccessibleItemView::setText ( Text  t, int  child, const QString &  text  )

virtual

Sets the text property t of the object, or of the object's child if child is not 0, to text.

Note that the text properties of most objects are read-only.

See also

text()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 984 of file complexwidgets.cpp.

{
    if (atViewport()) {
        if (!child) {
            QAccessibleAbstractScrollArea::setText(t, child, text);
            return;
        }

        QAccessibleItemRow item(itemView(), childIndex(child));
        item.setText(t, 1, text);
    } else {
        QAccessibleAbstractScrollArea::setText(t, child, text);
    }
}

state()

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

virtual

Returns the current state of the object, or of the object's child if child is not 0.

The returned value is a combination of the flags in the QAccessible::StateFlag enumeration.

All accessible objects have a state.

See also

text(), role()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 1088 of file complexwidgets.cpp.

{
    State st = Normal;

    if (itemView() == 0)
        return State(Unavailable);

    bool queryViewPort = (atViewport() && child == 0) || (!atViewport() && child == 1);
    if (queryViewPort) {
        if (itemView()->selectionMode() != QAbstractItemView::NoSelection) {
            st |= Selectable;
            st |= Focusable;
        }
    } else if (atViewport()) {    // children of viewport
        if (horizontalHeader())
            --child;
        if (child) {
            QAccessibleItemRow item(itemView(), childIndex(child));
            st |= item.state(0);
        }
    } else if (!atViewport() && child != 1) {
        st = QAccessibleAbstractScrollArea::state(child);
    }
    return st;
}

summary()

QAccessibleInterface * QAccessibleItemView::summary ( )

virtual

Implements QAccessibleTableInterface.

Definition at line 1290 of file complexwidgets.cpp.

{
    return 0;
}

text()

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

virtual

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

The Name is a string used by clients to identify, find, or announce an accessible object for the user. All objects must have a name that is unique within their container. The name can be used differently by clients, so the name should both give a short description of the object and be unique.

An accessible object's Description provides textual information about an object's visual appearance. The description is primarily used to provide greater context for vision-impaired users, but is also used for context searching or other applications. Not all objects have a description. An "OK" button would not need a description, but a tool button that shows a picture of a smiley would.

The Value of an accessible object represents visual information contained by the object, e.g. the text in a line edit. Usually, the value can be modified by the user. Not all objects have a value, e.g. static text labels don't, and some objects have a state that already is the value, e.g. toggle buttons.

The Help text provides information about the function and usage of an accessible object. Not all objects provide this information.

The Accelerator is a keyboard shortcut that activates the object's default action. A keyboard shortcut is the underlined character in the text of a menu, menu item or widget, and is either the character itself, or a combination of this character and a modifier key like Alt, Ctrl or Shift. Command controls like tool buttons also have shortcut keys and usually display them in their tooltip.

All objects provide a string for Name .

See also

role(), state()

Reimplemented from QAccessibleAbstractScrollArea.

Definition at line 967 of file complexwidgets.cpp.

{
    if (atViewport()) {
        if (!child)
            return QAccessibleAbstractScrollArea::text(t, child);

        QAccessibleItemRow item(itemView(), childIndex(child));
        if (item.isValid()) {
            return item.text(t, 1);
        } else {
            return QString();
        }
    } else {
        return QAccessibleAbstractScrollArea::text(t, child);
    }
}

unselectColumn()

void QAccessibleItemView::unselectColumn ( int  column )

virtual

Implements QAccessibleTableInterface.

Definition at line 1328 of file complexwidgets.cpp.

{
    QItemSelectionModel *s = itemView()->selectionModel();
    s->select(index(0, column), QItemSelectionModel::Deselect | QItemSelectionModel::Columns);
}

unselectRow()

void QAccessibleItemView::unselectRow ( int  row )

virtual

Implements QAccessibleTableInterface.

Definition at line 1322 of file complexwidgets.cpp.

{
    QItemSelectionModel *s = itemView()->selectionModel();
    s->select(index(row, 0), QItemSelectionModel::Deselect | QItemSelectionModel::Rows);
}

verticalHeader()

QHeaderView * QAccessibleItemView::verticalHeader

(

)

const

Definition at line 830 of file complexwidgets.cpp.

Referenced by rect().

{
    QHeaderView *header = 0;
    if (false) {
#ifndef QT_NO_TABLEVIEW
    } else if (const QTableView *tv = qobject_cast<const QTableView*>(itemView())) {
        header = tv->verticalHeader();
#endif
    }
    return header;
}

Properties

atVP

bool QAccessibleItemView::atVP

private

Definition at line 226 of file complexwidgets.h.

Referenced by QAccessibleItemView().

---

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

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