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Diffstat (limited to 'editeng/source/accessibility/AccessibleStringWrap.cxx')
-rw-r--r-- | editeng/source/accessibility/AccessibleStringWrap.cxx | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/editeng/source/accessibility/AccessibleStringWrap.cxx b/editeng/source/accessibility/AccessibleStringWrap.cxx new file mode 100644 index 000000000000..3f9fffaf6982 --- /dev/null +++ b/editeng/source/accessibility/AccessibleStringWrap.cxx @@ -0,0 +1,103 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: AccessibleStringWrap.cxx,v $ + * $Revision: 1.8 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_editeng.hxx" + +#include <algorithm> +#include <tools/debug.hxx> +#include <vcl/outdev.hxx> + +#include <editeng/svxfont.hxx> +#include <editeng/AccessibleStringWrap.hxx> + +//------------------------------------------------------------------------ +// +// AccessibleStringWrap implementation +// +//------------------------------------------------------------------------ + +AccessibleStringWrap::AccessibleStringWrap( OutputDevice& rDev, SvxFont& rFont, const String& rText ) : + mrDev( rDev ), + mrFont( rFont ), + maText( rText ) +{ +} + +sal_Bool AccessibleStringWrap::GetCharacterBounds( sal_Int32 nIndex, Rectangle& rRect ) +{ + DBG_ASSERT(nIndex >= 0 && nIndex <= USHRT_MAX, + "SvxAccessibleStringWrap::GetCharacterBounds: index value overflow"); + + mrFont.SetPhysFont( &mrDev ); + + // #108900# Handle virtual position one-past-the end of the string + if( nIndex >= maText.Len() ) + { + // create a caret bounding rect that has the height of the + // current font and is one pixel wide. + rRect.Left() = mrDev.GetTextWidth(maText); + rRect.Top() = 0; + rRect.SetSize( Size(mrDev.GetTextHeight(), 1) ); + } + else + { + sal_Int32 aXArray[2]; + mrDev.GetCaretPositions( maText, aXArray, static_cast< USHORT >(nIndex), 1 ); + rRect.Left() = 0; + rRect.Top() = 0; + rRect.SetSize( Size(mrDev.GetTextHeight(), labs(aXArray[0] - aXArray[1])) ); + rRect.Move( ::std::min(aXArray[0], aXArray[1]), 0 ); + } + + if( mrFont.IsVertical() ) + { + // #101701# Rotate to vertical + rRect = Rectangle( Point(-rRect.Top(), rRect.Left()), + Point(-rRect.Bottom(), rRect.Right())); + } + + return sal_True; +} + +sal_Int32 AccessibleStringWrap::GetIndexAtPoint( const Point& rPoint ) +{ + // search for character bounding box containing given point + Rectangle aRect; + sal_Int32 i, nLen = maText.Len(); + for( i=0; i<nLen; ++i ) + { + GetCharacterBounds(i, aRect); + if( aRect.IsInside(rPoint) ) + return i; + } + + return -1; +} |