katie/src/plugins/accessible/widgets/itemviews.h
Ivailo Monev 58ef830341 copyright update
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
2021-01-02 01:59:24 +02:00

313 lines
11 KiB
C++

/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Copyright (C) 2016-2021 Ivailo Monev
**
** This file is part of the plugins of the Katie Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
**
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ACCESSIBLE_ITEMVIEWS_H
#define ACCESSIBLE_ITEMVIEWS_H
#include "QtCore/qpointer.h"
#include <QtGui/qabstractitemview.h>
#include <QtGui/qheaderview.h>
#include <QtGui/qaccessible.h>
#include <QtGui/qaccessible2.h>
#include <QtGui/qaccessiblewidget.h>
QT_BEGIN_NAMESPACE
#ifndef QT_NO_ACCESSIBILITY
#ifndef QT_NO_ITEMVIEWS
class QAccessibleTable2Cell;
class QAccessibleTable2HeaderCell;
class QAccessibleTable2 :public QAccessibleTable2Interface, public QAccessibleObject
{
Q_ACCESSIBLE_OBJECT
public:
explicit QAccessibleTable2(QWidget *w);
virtual ~QAccessibleTable2();
Role role(int child) const;
State state(int child) const;
QString text(Text t, int child) const;
QRect rect(int child) const;
int childAt(int x, int y) const;
int childCount() const;
int indexOfChild(const QAccessibleInterface *) const;
int navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const;
Relation relationTo(int child, const QAccessibleInterface *other, int otherChild) const;
#ifndef QT_NO_ACTION
int userActionCount(int child) const;
QString actionText(int action, Text t, int child) const;
bool doAction(int action, int child, const QVariantList &params);
#endif
QVariant invokeMethodEx(Method, int, const QVariantList &) { return QVariant(); }
// table2 interface
virtual QAccessibleTable2CellInterface *cellAt(int row, int column) const;
virtual QAccessibleInterface *caption() const;
virtual QAccessibleInterface *summary() const;
virtual QString columnDescription(int column) const;
virtual QString rowDescription(int row) const;
virtual int columnCount() const;
virtual int rowCount() const;
virtual QAccessible2::TableModelChange modelChange() const;
// selection
virtual int selectedCellCount() const;
virtual int selectedColumnCount() const;
virtual int selectedRowCount() const;
virtual QList<QAccessibleTable2CellInterface*> selectedCells() const;
virtual QList<int> selectedColumns() const;
virtual QList<int> selectedRows() const;
virtual bool isColumnSelected(int column) const;
virtual bool isRowSelected(int row) const;
virtual bool selectRow(int row);
virtual bool selectColumn(int column);
virtual bool unselectRow(int row);
virtual bool unselectColumn(int column);
QAbstractItemView *view() const;
protected:
virtual void modelReset();
virtual void rowsInserted(const QModelIndex &parent, int first, int last);
virtual void rowsRemoved(const QModelIndex &parent, int first, int last);
virtual void columnsInserted(const QModelIndex &parent, int first, int last);
virtual void columnsRemoved(const QModelIndex &parent, int first, int last);
virtual void rowsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int row);
virtual void columnsMoved( const QModelIndex &parent, int start, int end, const QModelIndex &destination, int column);
protected:
QAccessible2::TableModelChange lastChange;
inline QAccessibleTable2Cell *cell(const QModelIndex &index) const;
inline QAccessible::Role cellRole() const {
switch (m_role) {
case QAccessible::List:
return QAccessible::ListItem;
case QAccessible::Table:
return QAccessible::Cell;
case QAccessible::Tree:
return QAccessible::TreeItem;
default:
Q_ASSERT(false);
}
return QAccessible::NoRole;
}
QHeaderView *horizontalHeader() const;
QHeaderView *verticalHeader() const;
private:
// the child index for a model index
inline int logicalIndex(const QModelIndex &index) const;
// the model index from the child index
QAccessibleInterface *childFromLogical(int logicalIndex) const;
QAccessible::Role m_role;
};
class QAccessibleTree :public QAccessibleTable2
{
public:
explicit QAccessibleTree(QWidget *w)
: QAccessibleTable2(w)
{}
virtual ~QAccessibleTree() {}
int childAt(int x, int y) const;
int childCount() const;
int indexOfChild(const QAccessibleInterface *) const;
int rowCount() const;
int navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const;
Relation relationTo(int child, const QAccessibleInterface *other, int otherChild) const;
// table2 interface
QAccessibleTable2CellInterface *cellAt(int row, int column) const;
QString rowDescription(int row) const;
bool isRowSelected(int row) const;
bool selectRow(int row);
private:
QModelIndex indexFromLogical(int row, int column = 0) const;
};
class QAccessibleTable2Cell: public QAccessibleTable2CellInterface /*), public QAccessibleTextInterface, public QAccessibleSimpleEditableTextInterface*/
{
public:
QAccessibleTable2Cell(QAbstractItemView *view, const QModelIndex &m_index, QAccessible::Role role);
QObject *object() const { return 0; }
Role role(int child) const;
State state(int child) const;
QRect rect(int child) const;
bool isValid() const;
int childAt(int, int) const { return 0; }
int childCount() const { return 0; }
int indexOfChild(const QAccessibleInterface *) const { return -1; }
QString text(Text t, int child) const;
void setText(Text t, int child, const QString &text);
int navigate(RelationFlag relation, int m_index, QAccessibleInterface **iface) const;
Relation relationTo(int child, const QAccessibleInterface *other, int otherChild) const;
bool isExpandable() const;
#ifndef QT_NO_ACTION
int userActionCount(int child) const;
QString actionText(int action, Text t, int child) const;
bool doAction(int action, int child, const QVariantList &params);
#endif
// cell interface
virtual int columnExtent() const;
virtual QList<QAccessibleInterface*> columnHeaderCells() const;
virtual int columnIndex() const;
virtual int rowExtent() const;
virtual QList<QAccessibleInterface*> rowHeaderCells() const;
virtual int rowIndex() const;
virtual bool isSelected() const;
virtual void rowColumnExtents(int *row, int *column, int *rowExtents, int *columnExtents, bool *selected) const;
virtual QAccessibleTable2Interface* table() const;
private:
QHeaderView *verticalHeader() const;
QHeaderView *horizontalHeader() const;
QPointer<QAbstractItemView > view;
QModelIndex m_index;
QAccessible::Role m_role;
friend class QAccessibleTable2;
friend class QAccessibleTree;
};
class QAccessibleTable2HeaderCell: public QAccessibleInterface /*), public QAccessibleTextInterface, public QAccessibleSimpleEditableTextInterface*/
{
public:
// For header cells, pass the header view in addition
QAccessibleTable2HeaderCell(QAbstractItemView *view, int index, Qt::Orientation orientation);
QObject *object() const { return 0; }
Role role(int child) const;
State state(int child) const;
QRect rect(int child) const;
bool isValid() const;
int childAt(int, int) const { return 0; }
int childCount() const { return 0; }
int indexOfChild(const QAccessibleInterface *) const { return -1; }
QString text(Text t, int child) const;
void setText(Text t, int child, const QString &text);
int navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const;
Relation relationTo(int child, const QAccessibleInterface *other, int otherChild) const;
#ifndef QT_NO_ACTION
int userActionCount(int child) const;
QString actionText(int action, Text t, int child) const;
bool doAction(int action, int child, const QVariantList &params);
#endif
private:
QAbstractItemView *view;
int index;
Qt::Orientation orientation;
friend class QAccessibleTable2;
friend class QAccessibleTree;
};
// This is the corner button on the top left of a table.
// It can be used to select all cells or it is not active at all.
// For now it is ignored.
class QAccessibleTable2CornerButton: public QAccessibleInterface
{
public:
QAccessibleTable2CornerButton(QAbstractItemView *view_)
:view(view_)
{}
QObject *object() const { return 0; }
Role role(int child) const { Q_ASSERT(child == 0); return QAccessible::Pane; }
State state(int child) const { Q_ASSERT(child == 0); return QAccessible::Normal; }
QRect rect(int child) const { Q_ASSERT(child == 0); return QRect(); }
bool isValid() const { return true; }
int childAt(int, int) const { return 0; }
int childCount() const { return 0; }
int indexOfChild(const QAccessibleInterface *) const { return -1; }
QString text(Text, int) const { return QString(); }
void setText(Text, int, const QString &) {}
int navigate(RelationFlag relation, int index, QAccessibleInterface **iface) const
{
if (relation == QAccessible::Ancestor && index == 1) {
*iface = QAccessible::queryAccessibleInterface(view);
return 0;
}
return -1;
}
Relation relationTo(int, const QAccessibleInterface *, int) const
{
return QAccessible::Unrelated;
}
#ifndef QT_NO_ACTION
int userActionCount(int) const { return 0; }
QString actionText(int, Text, int) const { return QString(); }
bool doAction(int, int, const QVariantList &) { return false; }
#endif
private:
QAbstractItemView *view;
};
#endif
#endif // QT_NO_ACCESSIBILITY
QT_END_NAMESPACE
#endif // ACCESSIBLE_ITEMVIEWS_H