qaccessible2.h
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上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtGui module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
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- ** If you are unsure which license is appropriate for your use, please
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- ****************************************************************************/
- #ifndef QACCESSIBLE2_H
- #define QACCESSIBLE2_H
- #include <QtGui/qaccessible.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Gui)
- #ifndef QT_NO_ACCESSIBILITY
- namespace QAccessible2
- {
- enum CoordinateType
- {
- RelativeToScreen = 0,
- RelativeToParent = 1
- };
- enum BoundaryType {
- CharBoundary,
- WordBoundary,
- SentenceBoundary,
- ParagraphBoundary,
- LineBoundary,
- NoBoundary
- };
- }
- class Q_GUI_EXPORT QAccessible2Interface
- {
- public:
- virtual ~QAccessible2Interface() {}
- };
- // catch-all functions. If an accessible class doesn't implement interface T, return 0
- inline QAccessible2Interface *qAccessibleValueCastHelper() { return 0; }
- inline QAccessible2Interface *qAccessibleTextCastHelper() { return 0; }
- inline QAccessible2Interface *qAccessibleEditableTextCastHelper() { return 0; }
- inline QAccessible2Interface *qAccessibleTableCastHelper() { return 0; }
- #define Q_ACCESSIBLE_OBJECT
- public:
- QAccessible2Interface *interface_cast(QAccessible2::InterfaceType t)
- {
- switch (t) {
- case QAccessible2::TextInterface:
- return qAccessibleTextCastHelper();
- case QAccessible2::EditableTextInterface:
- return qAccessibleEditableTextCastHelper();
- case QAccessible2::ValueInterface:
- return qAccessibleValueCastHelper();
- case QAccessible2::TableInterface:
- return qAccessibleTableCastHelper();
- }
- return 0;
- }
- private:
- class Q_GUI_EXPORT QAccessibleTextInterface: public QAccessible2Interface
- {
- public:
- inline QAccessible2Interface *qAccessibleTextCastHelper() { return this; }
- virtual ~QAccessibleTextInterface() {}
- virtual void addSelection(int startOffset, int endOffset) = 0;
- virtual QString attributes(int offset, int *startOffset, int *endOffset) = 0;
- virtual int cursorPosition() = 0;
- virtual QRect characterRect(int offset, QAccessible2::CoordinateType coordType) = 0;
- virtual int selectionCount() = 0;
- virtual int offsetAtPoint(const QPoint &point, QAccessible2::CoordinateType coordType) = 0;
- virtual void selection(int selectionIndex, int *startOffset, int *endOffset) = 0;
- virtual QString text(int startOffset, int endOffset) = 0;
- virtual QString textBeforeOffset (int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) = 0;
- virtual QString textAfterOffset(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) = 0;
- virtual QString textAtOffset(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) = 0;
- virtual void removeSelection(int selectionIndex) = 0;
- virtual void setCursorPosition(int position) = 0;
- virtual void setSelection(int selectionIndex, int startOffset, int endOffset) = 0;
- virtual int characterCount() = 0;
- virtual void scrollToSubstring(int startIndex, int endIndex) = 0;
- };
- class Q_GUI_EXPORT QAccessibleEditableTextInterface: public QAccessible2Interface
- {
- public:
- inline QAccessible2Interface *qAccessibleEditableTextCastHelper() { return this; }
- virtual ~QAccessibleEditableTextInterface() {}
- virtual void copyText(int startOffset, int endOffset) = 0;
- virtual void deleteText(int startOffset, int endOffset) = 0;
- virtual void insertText(int offset, const QString &text) = 0;
- virtual void cutText(int startOffset, int endOffset) = 0;
- virtual void pasteText(int offset) = 0;
- virtual void replaceText(int startOffset, int endOffset, const QString &text) = 0;
- virtual void setAttributes(int startOffset, int endOffset, const QString &attributes) = 0;
- };
- class Q_GUI_EXPORT QAccessibleSimpleEditableTextInterface: public QAccessibleEditableTextInterface
- {
- public:
- QAccessibleSimpleEditableTextInterface(QAccessibleInterface *accessibleInterface);
- void copyText(int startOffset, int endOffset);
- void deleteText(int startOffset, int endOffset);
- void insertText(int offset, const QString &text);
- void cutText(int startOffset, int endOffset);
- void pasteText(int offset);
- void replaceText(int startOffset, int endOffset, const QString &text);
- inline void setAttributes(int, int, const QString &) {}
- private:
- QAccessibleInterface *iface;
- };
- class Q_GUI_EXPORT QAccessibleValueInterface: public QAccessible2Interface
- {
- public:
- inline QAccessible2Interface *qAccessibleValueCastHelper() { return this; }
- virtual ~QAccessibleValueInterface() {}
- virtual QVariant currentValue() = 0;
- virtual void setCurrentValue(const QVariant &value) = 0;
- virtual QVariant maximumValue() = 0;
- virtual QVariant minimumValue() = 0;
- };
- class Q_GUI_EXPORT QAccessibleTableInterface: public QAccessible2Interface
- {
- public:
- inline QAccessible2Interface *qAccessibleTableCastHelper() { return this; }
- virtual QAccessibleInterface *accessibleAt(int row, int column) = 0;
- virtual QAccessibleInterface *caption() = 0;
- virtual int childIndex(int rowIndex, int columnIndex) = 0;
- virtual QString columnDescription(int column) = 0;
- virtual int columnSpan(int row, int column) = 0;
- virtual QAccessibleInterface *columnHeader() = 0;
- virtual int columnIndex(int childIndex) = 0;
- virtual int columnCount() = 0;
- virtual int rowCount() = 0;
- virtual int selectedColumnCount() = 0;
- virtual int selectedRowCount() = 0;
- virtual QString rowDescription(int row) = 0;
- virtual int rowSpan(int row, int column) = 0;
- virtual QAccessibleInterface *rowHeader() = 0;
- virtual int rowIndex(int childIndex) = 0;
- virtual int selectedRows(int maxRows, QList<int> *rows) = 0;
- virtual int selectedColumns(int maxColumns, QList<int> *columns) = 0;
- virtual QAccessibleInterface *summary() = 0;
- virtual bool isColumnSelected(int column) = 0;
- virtual bool isRowSelected(int row) = 0;
- virtual bool isSelected(int row, int column) = 0;
- virtual void selectRow(int row) = 0;
- virtual void selectColumn(int column) = 0;
- virtual void unselectRow(int row) = 0;
- virtual void unselectColumn(int column) = 0;
- virtual void cellAtIndex(int index, int *row, int *column, int *rowSpan,
- int *columnSpan, bool *isSelected) = 0;
- };
- #endif // QT_NO_ACCESSIBILITY
- QT_END_NAMESPACE
- QT_END_HEADER
- #endif