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Diffstat (limited to 'sc/source/ui/inc/AccessibleCsvControl.hxx')
| -rw-r--r-- | sc/source/ui/inc/AccessibleCsvControl.hxx | 483 |
1 files changed, 483 insertions, 0 deletions
diff --git a/sc/source/ui/inc/AccessibleCsvControl.hxx b/sc/source/ui/inc/AccessibleCsvControl.hxx new file mode 100644 index 0000000000..cb1efc3093 --- /dev/null +++ b/sc/source/ui/inc/AccessibleCsvControl.hxx @@ -0,0 +1,483 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <memory> +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleScrollType.hpp> +#include <com/sun/star/accessibility/XAccessibleText.hpp> +#include <com/sun/star/accessibility/XAccessibleTable.hpp> +#include <com/sun/star/accessibility/XAccessibleSelection.hpp> +#include <tools/gen.hxx> +#include <rtl/ref.hxx> +#include <rtl/ustrbuf.hxx> +#include <comphelper/accessiblecomponenthelper.hxx> +#include <cppuhelper/implbase.hxx> +#include <editeng/AccessibleStaticTextBase.hxx> +#include <comphelper/uno3.hxx> +#include <map> + +class ScCsvControl; + +/** Accessible base class used for CSV controls. */ +class ScAccessibleCsvControl : public comphelper::OAccessibleComponentHelper +{ +private: + ScCsvControl* mpControl; /// Pointer to the VCL control. + +public: + explicit ScAccessibleCsvControl(ScCsvControl& rControl); + virtual ~ScAccessibleCsvControl() override; + + virtual void SAL_CALL disposing() override; + + virtual void SAL_CALL grabFocus( ) override; + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& aPoint ) override; + + // events ----------------------------------------------------------------- +public: + /** Sends a GetFocus or LoseFocus event to all listeners. */ + virtual void SendFocusEvent( bool bFocused ); + /** Sends a caret changed event to all listeners. */ + virtual void SendCaretEvent(); + /** Sends a visible area changed event to all listeners. */ + void SendVisibleEvent(); + /** Sends a selection changed event to all listeners. */ + void SendSelectionEvent(); + /** Sends a table model changed event for changed cell contents to all listeners. */ + virtual void SendTableUpdateEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn, bool bAllRows ); + /** Sends a table model changed event for an inserted column to all listeners. */ + virtual void SendInsertColumnEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn ); + /** Sends a table model changed event for a removed column to all listeners. */ + virtual void SendRemoveColumnEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn ); + + // helpers ---------------------------------------------------------------- +protected: + virtual css::awt::Rectangle implGetBounds() override; + + /** Returns the VCL control. Assumes a living object. */ + ScCsvControl& implGetControl() const; + + /** Creates a StateSet and fills it with DEFUNC, OPAQUE, ENABLED, SHOWING and VISIBLE. */ + sal_Int64 implCreateStateSet(); +}; + +class ScCsvRuler; + +/** Accessible class representing the CSV ruler control. */ +class ScAccessibleCsvRuler : public cppu::ImplInheritanceHelper< + ScAccessibleCsvControl, + css::accessibility::XAccessible, + css::accessibility::XAccessibleText> +{ +private: + OUStringBuffer maBuffer; /// Contains the text representation of the ruler. + +public: + explicit ScAccessibleCsvRuler( ScCsvRuler& rRuler ); + virtual ~ScAccessibleCsvRuler() override; + + // XAccessibleComponent ----------------------------------------------------- + virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext( ) override { return this; } + + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent( ) override; + + virtual OUString SAL_CALL getAccessibleDescription( ) override; + virtual OUString SAL_CALL getAccessibleName( ) override; + + virtual sal_Int32 SAL_CALL getForeground( ) override; + + virtual sal_Int32 SAL_CALL getBackground( ) override; + + // XAccessibleContext ----------------------------------------------------- + + /** Returns the child count (the ruler does not have children). */ + virtual sal_Int64 SAL_CALL getAccessibleChildCount() override; + + /** Throws an exception (the ruler does not have children). */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int64 nIndex ) override; + + virtual sal_Int16 SAL_CALL getAccessibleRole( ) override { return css::accessibility::AccessibleRole::TEXT; } + + /** Returns the relation to the grid control. */ + virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet() override; + + /** Returns the current set of states. */ + virtual sal_Int64 SAL_CALL getAccessibleStateSet() override; + + // XAccessibleText -------------------------------------------------------- + + /** Return the position of the caret. */ + virtual sal_Int32 SAL_CALL getCaretPosition() override; + + /** Sets the position of the caret. */ + virtual sal_Bool SAL_CALL setCaretPosition( sal_Int32 nIndex ) override; + + /** Returns the specified character. */ + virtual sal_Unicode SAL_CALL getCharacter( sal_Int32 nIndex ) override; + + /** Returns the attributes of the specified character. */ + virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getCharacterAttributes( sal_Int32 nIndex, const css::uno::Sequence< OUString >& aRequestedAttributes ) override; + + /** Returns the screen coordinates of the specified character. */ + virtual css::awt::Rectangle SAL_CALL getCharacterBounds( sal_Int32 nIndex ) override; + + /** Returns the count of characters. */ + virtual sal_Int32 SAL_CALL getCharacterCount() override; + + /** Returns the character index at the specified coordinate (object's coordinate system). */ + virtual sal_Int32 SAL_CALL getIndexAtPoint( const css::awt::Point& rPoint ) override; + + /** Returns the selected text (ruler returns empty string). */ + virtual OUString SAL_CALL getSelectedText() override; + + /** Returns the start index of the selection (ruler returns -1). */ + virtual sal_Int32 SAL_CALL getSelectionStart() override; + + /** Returns the end index of the selection (ruler returns -1). */ + virtual sal_Int32 SAL_CALL getSelectionEnd() override; + + /** Selects a part of the text (ruler does nothing). */ + virtual sal_Bool SAL_CALL setSelection( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override; + + /** Returns the entire text. */ + virtual OUString SAL_CALL getText() override; + + /** Returns the specified range [Start,End) of the text. */ + virtual OUString SAL_CALL getTextRange( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override; + + /** Returns the specified text portion. */ + virtual css::accessibility::TextSegment SAL_CALL getTextAtIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override; + virtual css::accessibility::TextSegment SAL_CALL getTextBeforeIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override; + virtual css::accessibility::TextSegment SAL_CALL getTextBehindIndex( sal_Int32 nIndex, sal_Int16 aTextType ) override; + + /** Copies the specified text range into the clipboard (ruler does nothing). */ + virtual sal_Bool SAL_CALL copyText( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override; + + virtual sal_Bool SAL_CALL scrollSubstringTo( sal_Int32 nStartIndex, sal_Int32 nEndIndex, css::accessibility::AccessibleScrollType aScrollType) override; + + // events ----------------------------------------------------------------- +public: + /** Sends a caret changed event to all listeners. */ + virtual void SendCaretEvent() override; + + // helpers ---------------------------------------------------------------- +private: + + /** @throws css::lang::IndexOutOfBoundsException if the specified character position is invalid (outside 0..len-1). */ + void ensureValidIndex( sal_Int32 nIndex ) const; + /** @throws css::lang::IndexOutOfBoundsException if the specified character position is invalid (outside 0..len). */ + void ensureValidIndexWithEnd( sal_Int32 nIndex ) const; + /** @throws css::lang::IndexOutOfBoundsException if the specified character range [Start,End) is invalid. + @descr If Start>End, swaps Start and End before checking. */ + void ensureValidRange( sal_Int32& rnStartIndex, sal_Int32& rnEndIndex ) const; + + /** Returns the VCL ruler control. Assumes a living object. */ + ScCsvRuler& implGetRuler() const; + + /** Builds the entire string buffer. + + @throws css::uno::RuntimeException + */ + void constructStringBuffer(); + /** Returns the character count of the text. */ + sal_Int32 implGetTextLength() const; + + /** Returns true, if the character at the specified index has a split. */ + bool implHasSplit( sal_Int32 nApiPos ); + + /** Returns the first character index with equal formatting as at nApiPos. */ + sal_Int32 implGetFirstEqualFormatted( sal_Int32 nApiPos ); + /** Returns the last character index with equal formatting as at nApiPos. */ + sal_Int32 implGetLastEqualFormatted( sal_Int32 nApiPos ); +}; + +class ScCsvGrid; +class ScAccessibleCsvCell; + +/** Accessible class representing the CSV grid control. */ +class ScAccessibleCsvGrid : public cppu::ImplInheritanceHelper< + ScAccessibleCsvControl, + css::accessibility::XAccessible, + css::accessibility::XAccessibleTable, + css::accessibility::XAccessibleSelection> +{ +protected: + typedef std::map< sal_Int64, rtl::Reference<ScAccessibleCsvCell> > XAccessibleSet; + +private: + XAccessibleSet maAccessibleChildren; + +public: + explicit ScAccessibleCsvGrid( ScCsvGrid& rGrid ); + virtual ~ScAccessibleCsvGrid() override; + virtual void SAL_CALL disposing() override; + + // XAccessibleComponent --------------------------------------------------- + virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext( ) override { return this; } + + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent( ) override; + + /** Returns the cell at the specified point. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleAtPoint( const css::awt::Point& rPoint ) override; + + virtual OUString SAL_CALL getAccessibleDescription( ) override; + virtual OUString SAL_CALL getAccessibleName( ) override; + + virtual sal_Int32 SAL_CALL getForeground( ) override; + + virtual sal_Int32 SAL_CALL getBackground( ) override; + + virtual sal_Int16 SAL_CALL getAccessibleRole( ) override { return css::accessibility::AccessibleRole::TABLE; } + + // XAccessibleContext ----------------------------------------------------- + + /** Returns the child count (count of cells in the table). */ + virtual sal_Int64 SAL_CALL getAccessibleChildCount() override; + + /** Returns the specified child cell. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int64 nIndex ) override; + + /** Returns the relation to the ruler control. */ + virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet() override; + + /** Returns the current set of states. */ + virtual sal_Int64 SAL_CALL getAccessibleStateSet() override; + + // XAccessibleTable ------------------------------------------------------- + + /** Returns the number of rows in the table. */ + virtual sal_Int32 SAL_CALL getAccessibleRowCount() override; + + /** Returns the number of columns in the table. */ + virtual sal_Int32 SAL_CALL getAccessibleColumnCount() override; + + /** Returns the description of the specified row in the table. */ + virtual OUString SAL_CALL getAccessibleRowDescription( sal_Int32 nRow ) override; + + /** Returns the description text of the specified column in the table. */ + virtual OUString SAL_CALL getAccessibleColumnDescription( sal_Int32 nColumn ) override; + + /** Returns the number of rows occupied at a specified row and column. + @descr Returns always 1 (Merged cells not supported). */ + virtual sal_Int32 SAL_CALL getAccessibleRowExtentAt( sal_Int32 nRow, sal_Int32 nColumn ) override; + + /** Returns the number of rows occupied at a specified row and column. + @descr Returns always 1 (Merged cells not supported). */ + virtual sal_Int32 SAL_CALL getAccessibleColumnExtentAt( sal_Int32 nRow, sal_Int32 nColumn ) override; + + /** Returns the row headers as an AccessibleTable. */ + virtual css::uno::Reference< css::accessibility::XAccessibleTable > SAL_CALL getAccessibleRowHeaders() override; + + /** Returns the column headers as an AccessibleTable. */ + virtual css::uno::Reference< css::accessibility::XAccessibleTable > SAL_CALL getAccessibleColumnHeaders() override; + + /** Returns the selected rows as a sequence. */ + virtual css::uno::Sequence< sal_Int32 > SAL_CALL getSelectedAccessibleRows() override; + + /** Returns the selected columns as a sequence. */ + virtual css::uno::Sequence< sal_Int32 > SAL_CALL getSelectedAccessibleColumns() override; + + /** Returns true, if the specified row is selected. */ + virtual sal_Bool SAL_CALL isAccessibleRowSelected( sal_Int32 nRow ) override; + + /** Returns true, if the specified column is selected. */ + virtual sal_Bool SAL_CALL isAccessibleColumnSelected( sal_Int32 nColumn ) override; + + /** Returns the accessible cell object at the specified position. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleCellAt( sal_Int32 nRow, sal_Int32 nColumn ) override; + + /** Returns the caption object of the table. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleCaption() override; + + /** Returns the summary description object of the table. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleSummary() override; + + /** Returns true, if the cell at a specified position is selected. */ + virtual sal_Bool SAL_CALL isAccessibleSelected( sal_Int32 nRow, sal_Int32 nColumn ) override; + + /** Returns the child index of the cell at the specified position. */ + virtual sal_Int64 SAL_CALL getAccessibleIndex( sal_Int32 nRow, sal_Int32 nColumn ) override; + + /** Returns the row index of the specified child. */ + virtual sal_Int32 SAL_CALL getAccessibleRow( sal_Int64 nChildIndex ) override; + + /** Returns the column index of the specified child. */ + virtual sal_Int32 SAL_CALL getAccessibleColumn( sal_Int64 nChildIndex ) override; + + // XAccessibleSelection --------------------------------------------------- + + /** Selects the specified child (selects the entire column or the entire table). */ + virtual void SAL_CALL selectAccessibleChild( sal_Int64 nChildIndex ) override; + + /** Returns true, if the specified child is selected. */ + virtual sal_Bool SAL_CALL isAccessibleChildSelected( sal_Int64 nChildIndex ) override; + + /** Deselects all cells. */ + virtual void SAL_CALL clearAccessibleSelection() override; + + /** Selects all cells. */ + virtual void SAL_CALL selectAllAccessibleChildren() override; + + /** Returns the count of selected children. */ + virtual sal_Int64 SAL_CALL getSelectedAccessibleChildCount() override; + + /** Returns the child with the specified index in all selected children. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getSelectedAccessibleChild( sal_Int64 nSelectedChildIndex ) override; + + /** Deselects the child with the specified index in all selected children. */ + virtual void SAL_CALL deselectAccessibleChild( sal_Int64 nSelectedChildIndex ) override; + + // events ----------------------------------------------------------------- +public: + /** Sends a GetFocus or LoseFocus event to all listeners. */ + virtual void SendFocusEvent( bool bFocused ) override; + /** Sends a table model changed event for changed cell contents to all listeners. */ + virtual void SendTableUpdateEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn, bool bAllRows ) override; + /** Sends a table model changed event for an inserted column to all listeners. */ + virtual void SendInsertColumnEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn ) override; + /** Sends a table model changed event for a removed column to all listeners. */ + virtual void SendRemoveColumnEvent( sal_uInt32 nFirstColumn, sal_uInt32 nLastColumn ) override; + + // helpers ---------------------------------------------------------------- +private: + + /** @throws css::lang::IndexOutOfBoundsException if nIndex is not a valid child index. */ + void ensureValidIndex( sal_Int64 nIndex ) const; + /** @Throws css::lang::IndexOutOfBoundsException if the specified position is invalid. */ + void ensureValidPosition( sal_Int32 nRow, sal_Int32 nColumn ) const; + + /** Returns the VCL grid control. Assumes a living object. */ + ScCsvGrid& implGetGrid() const; + + /** Returns true, if the specified column (including header) is selected. */ + bool implIsColumnSelected( sal_Int32 nColumn ) const; + /** Selects the specified column (including header). */ + void implSelectColumn( sal_Int32 nColumn, bool bSelect ); + + /** Returns the count of visible rows in the table (including header). */ + sal_Int32 implGetRowCount() const; + /** Returns the total column count in the table (including header). */ + sal_Int32 implGetColumnCount() const; + /** Returns the count of selected columns in the table. */ + sal_Int32 implGetSelColumnCount() const; + /** Returns the total cell count in the table (including header). */ + sal_Int64 implGetCellCount() const { return static_cast<sal_Int64>(implGetRowCount()) * static_cast<sal_Int64>(implGetColumnCount()); } + + /** Returns the row index from cell index (including header). */ + sal_Int32 implGetRow( sal_Int64 nIndex ) const { return nIndex / implGetColumnCount(); } + /** Returns the column index from cell index (including header). */ + sal_Int32 implGetColumn( sal_Int64 nIndex ) const { return nIndex % implGetColumnCount(); } + /** Returns the absolute column index of the nSelColumn-th selected column. */ + sal_Int32 implGetSelColumn( sal_Int32 nSelColumn ) const; + /** Returns the child index from cell position (including header). */ + sal_Int64 implGetIndex( sal_Int32 nRow, sal_Int32 nColumn ) const { return static_cast<sal_Int64>(nRow) * static_cast<sal_Int64>(implGetColumnCount()) + nColumn; } + + /** Returns the contents of the specified cell (including header). Indexes must be valid. */ + OUString implGetCellText( sal_Int32 nRow, sal_Int32 nColumn ) const; + /** Creates a new accessible object of the specified cell. Indexes must be valid. */ + rtl::Reference<ScAccessibleCsvCell> implCreateCellObj(sal_Int32 nRow, sal_Int32 nColumn); + + css::uno::Reference<css::accessibility::XAccessible> getAccessibleCell(sal_Int32 nRow, sal_Int32 nColumn); +}; + +/** Accessible class representing a cell of the CSV grid control. */ +class ScAccessibleCsvCell : public cppu::ImplInheritanceHelper< + ScAccessibleCsvControl, + css::accessibility::XAccessible> + , public ::accessibility::AccessibleStaticTextBase +{ +protected: + typedef ::std::unique_ptr< SvxEditSource > SvxEditSourcePtr; + +private: + OUString maCellText; /// The text contents of this cell. + sal_Int32 mnLine; /// The grid line index (core index). + sal_uInt32 mnColumn; /// The grid column index (core index). + sal_Int32 mnIndex; /// The index of the cell in the table. + +public: + explicit ScAccessibleCsvCell( + ScCsvGrid& rGrid, + OUString aCellText, + sal_Int32 nRow, sal_Int32 nColumn); + virtual ~ScAccessibleCsvCell() override; + + virtual void SAL_CALL disposing() override; + + // XAccessibleComponent --------------------------------------------------- + + /** Sets the focus to the column of this cell. */ + virtual void SAL_CALL grabFocus() override; + + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleParent( ) override; + + virtual css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext( ) override { return this; } + + virtual OUString SAL_CALL getAccessibleDescription( ) override; + virtual OUString SAL_CALL getAccessibleName( ) override; + virtual sal_Int16 SAL_CALL getAccessibleRole( ) override { return css::accessibility::AccessibleRole::TEXT; } + + virtual sal_Int32 SAL_CALL getForeground( ) override; + + virtual sal_Int32 SAL_CALL getBackground( ) override; + + // XAccessibleContext ----------------------------------------------------- + + /** Returns the child count. */ + virtual sal_Int64 SAL_CALL getAccessibleChildCount() override; + + /** Returns the specified child. */ + virtual css::uno::Reference< css::accessibility::XAccessible > SAL_CALL getAccessibleChild( sal_Int64 nIndex ) override; + + /** Returns the index of this cell in the table. */ + virtual sal_Int64 SAL_CALL getAccessibleIndexInParent() override; + + /** Returns the relation to the ruler control. */ + virtual css::uno::Reference< css::accessibility::XAccessibleRelationSet > SAL_CALL getAccessibleRelationSet() override; + + /** Returns the current set of states. */ + virtual sal_Int64 SAL_CALL getAccessibleStateSet() override; + + // XInterface ------------------------------------------------------------- + + DECLARE_XINTERFACE() + + // XTypeProvider ---------------------------------------------------------- + + DECLARE_XTYPEPROVIDER() + +private: + /** Returns the VCL grid control. Assumes a living object. */ + ScCsvGrid& implGetGrid() const; + /** Returns the pixel position of the cell (rel. to parent), regardless of visibility. */ + Point implGetRealPos() const; + /** Returns the width of the character count */ + sal_uInt32 implCalcPixelWidth(sal_uInt32 nChars) const; + /** Returns the pixel size of the cell, regardless of visibility. */ + Size implGetRealSize() const; + /** Returns the bounding box of the cell relative in the table. */ + virtual css::awt::Rectangle implGetBounds() override; + + /** Creates the edit source the text helper needs. */ + ::std::unique_ptr< SvxEditSource > implCreateEditSource(); +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |